* Re: [PATCH 2/5] [POWERPC][NET] ucc_geth_mii and users: get rid of device_type
From: Kumar Gala @ 2008-01-24 15:52 UTC (permalink / raw)
To: Anton Vorontsov; +Cc: linuxppc-dev list
In-Reply-To: <20080124154001.GB23246@localhost.localdomain>
On Jan 24, 2008, at 9:40 AM, Anton Vorontsov wrote:
> device_type property is bogus, thus use proper compatible.
>
> Also change compatible property to "fsl,ucc-mdio".
>
> Per http://ozlabs.org/pipermail/linuxppc-dev/2007-December/048388.html
>
> Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
can we look at using "fsl,gianfar-mdio" ? Meaning my understanding
the programming model for the UCC mdio is identical to gianfar MDIO
programming.
- k
^ permalink raw reply
* Re: [PATCH UCC TDM 1/3 Updated] Platform changes for UCC TDM driver for MPC8323eRDB. Also includes related QE changes and dts entries.
From: Anton Vorontsov @ 2008-01-24 15:48 UTC (permalink / raw)
To: Poonam_Aggrwal-b10812
Cc: michael.barkowski, netdev, kumar.gala, linux-kernel, rubini,
linuxppc-dev, ashish.kalra, rich.cutler, akpm, timur
In-Reply-To: <Pine.LNX.4.64.0801241553270.4984@linux121>
Hello Poonam,
On Thu, Jan 24, 2008 at 04:00:06PM +0530, Poonam_Aggrwal-b10812 wrote:
> Thanks Stephen for your comments, incorporated them.
> From: Poonam Aggrwal <b10812@freescale.com>
>
> This patch makes necessary changes in the QE and UCC framework to support
> TDM. It also adds support to configure the BRG properly through device
> tree entries. Includes the device tree changes for UCC TDM driver as well.
> It also includes device tree entries for UCC TDM driver.
>
> Tested on MPC8323ERDB platform.
>
> Signed-off-by: Poonam Aggrwal <b10812@freescale.com>
> Signed-off-by: Ashish Kalra <ashish.kalra@freescale.com>
> Signed-off-by: Kim Phillips <Kim.Phillips@freescale.com>
> Signed-off-by: Michael Barkowski <michael.barkowski@freescale.com>
> ---
> arch/powerpc/boot/dts/mpc832x_rdb.dts | 58 +++++++
> arch/powerpc/sysdev/qe_lib/qe.c | 184 +++++++++++++++++++++--
> arch/powerpc/sysdev/qe_lib/ucc.c | 265 +++++++++++++++++++++++++++++++++
> arch/powerpc/sysdev/qe_lib/ucc_fast.c | 37 +++++
> include/asm-powerpc/qe.h | 8 +
> include/asm-powerpc/ucc.h | 4 +
> include/asm-powerpc/ucc_fast.h | 4 +
> 7 files changed, 548 insertions(+), 12 deletions(-)
>
> diff --git a/arch/powerpc/boot/dts/mpc832x_rdb.dts b/arch/powerpc/boot/dts/mpc832x_rdb.dts
> index 388c8a7..c0e6283 100644
> --- a/arch/powerpc/boot/dts/mpc832x_rdb.dts
> +++ b/arch/powerpc/boot/dts/mpc832x_rdb.dts
> @@ -105,6 +105,17 @@
> device_type = "par_io";
> num-ports = <7>;
>
> + ucc1pio:ucc_pin@01 {
> + pio-map = <
> + /* port pin dir open_drain assignment has_irq */
> + 0 e 2 0 1 0 /* CLK11 */
> + 3 16 1 0 2 0 /* BRG9 */
> + 3 1b 1 0 2 0 /* BRG3 */
> + 0 0 3 0 2 0 /* TDMATxD0 */
> + 0 4 3 0 2 0 /* TDMARxD0 */
> + 3 1b 2 0 1 0>; /* CLK1 */
> + };
> +
Can we not introduce new pio-maps in the device trees? There
were debates regarding this, and if I understood everything
correctly, pio-maps considered as a bad taste. Better
do bunch of par_io_config_pin() in the board file. Better
yet fixup the firmware (u-boot) to set up dedicated pins
correctly.
Thanks,
--
Anton Vorontsov
email: cbou@mail.ru
backup email: ya-cbou@yandex.ru
irc://irc.freenode.net/bd2
^ permalink raw reply
* Re: [PATCH] UCC TDM driver for QE based MPC83xx platforms.
From: Timur Tabi @ 2008-01-24 15:39 UTC (permalink / raw)
To: Stephen Rothwell
Cc: Poonam_Aggrwal-b10812, michael.barkowski, netdev, kumar.gala,
linux-kernel, rubini, linuxppc-dev, ashish.kalra, rich.cutler,
akpm
In-Reply-To: <20080124171920.49d805cb.sfr@canb.auug.org.au>
Stephen Rothwell wrote:
>> + tdm_ctrl[device_num]->ut_info->uf_info.tdm_tx_clk =
>> + (char *) of_get_property(np, "fsl,tdm-tx-clk", NULL);
> ^
> We don't normall put spaces here.
Since when?
--
Timur Tabi
Linux kernel developer at Freescale
^ permalink raw reply
* [PATCH 5/5] [POWERPC] fsl_soc, legacy_serial: add support for "soc" compatible matching
From: Anton Vorontsov @ 2008-01-24 15:40 UTC (permalink / raw)
To: linuxppc-dev
In-Reply-To: <20080124151850.GA15190@localhost.localdomain>
We'll match on "soc" compatible for generic code, and "fsl,soc"
for fsl specific code.
Unfortunately it's still impossible to remove device_type = "soc"
from the existing device tree, because older u-boots are looking for
it.
Neither we can remove model number from the soc name to heal
arch/powerpc/boot/cuboot-85xx.c, because then dts'es will be
incompatible with older u-boots again.
So, just one machine converted so far: MPC8360E-RDK. It's new machine
so we don't care about backward compatibility yet.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
---
I know, this patch will conflict with the legacy serial rework[1].
It's okay though, if [1] will hit galak/powerpc.git first, I'll
simply rebase that patch.
[1] http://ozlabs.org/pipermail/linuxppc-dev/2008-January/050096.html
Documentation/powerpc/booting-without-of.txt | 18 ++++------
arch/powerpc/boot/dts/mpc836x_rdk.dts | 1 -
arch/powerpc/kernel/legacy_serial.c | 3 +-
arch/powerpc/sysdev/fsl_soc.c | 51 +++++++++++++++-----------
4 files changed, 39 insertions(+), 34 deletions(-)
diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt
index bedfdd0..a3b6e2a 100644
--- a/Documentation/powerpc/booting-without-of.txt
+++ b/Documentation/powerpc/booting-without-of.txt
@@ -32,7 +32,7 @@ Table of Contents
c) The /cpus/* nodes
d) the /memory node(s)
e) The /chosen node
- f) the /soc<SOCname> node
+ f) the /soc node
IV - "dtc", the device tree compiler
@@ -960,20 +960,16 @@ compatibility.
under /chosen called interrupt-controller which had a phandle value
that pointed to the main interrupt controller)
- f) the /soc<SOCname> node
+ f) the /soc node
This node is used to represent a system-on-a-chip (SOC) and must be
present if the processor is a SOC. The top-level soc node contains
- information that is global to all devices on the SOC. The node name
- should contain a unit address for the SOC, which is the base address
- of the memory-mapped register set for the SOC. The name of an soc
- node should start with "soc", and the remainder of the name should
- represent the part number for the soc. For example, the MPC8540's
- soc node would be called "soc8540".
+ information that is global to all devices on the SOC. The name of an
+ soc node should be "soc".
Required properties:
- - device_type : Should be "soc"
+ - compatible : Should be "cpu-specific-soc", "soc".
- ranges : Should be defined as specified in 1) to describe the
translation of SOC addresses for memory mapped SOC registers.
- bus-frequency: Contains the bus frequency for the SOC node.
@@ -2713,11 +2709,11 @@ Note that the #address-cells and #size-cells for the SoC node
in this example have been explicitly listed; these are likely
not necessary as they are usually the same as the root node.
- soc8540@e0000000 {
+ soc@e0000000 {
#address-cells = <1>;
#size-cells = <1>;
#interrupt-cells = <2>;
- device_type = "soc";
+ compatible = "fsl,mpc8540-soc", "fsl,soc", "soc";
ranges = <00000000 e0000000 00100000>
reg = <e0000000 00003000>;
bus-frequency = <0>;
diff --git a/arch/powerpc/boot/dts/mpc836x_rdk.dts b/arch/powerpc/boot/dts/mpc836x_rdk.dts
index 6efa5b7..ef739ee 100644
--- a/arch/powerpc/boot/dts/mpc836x_rdk.dts
+++ b/arch/powerpc/boot/dts/mpc836x_rdk.dts
@@ -58,7 +58,6 @@
soc@e0000000 {
#address-cells = <1>;
#size-cells = <1>;
- device_type = "soc";
compatible = "fsl,mpc8360-soc", "fsl,soc", "soc";
ranges = <0 0xe0000000 0x100000>;
reg = <0xe0000000 0x200>;
diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c
index 4bfff88..c99d0ae 100644
--- a/arch/powerpc/kernel/legacy_serial.c
+++ b/arch/powerpc/kernel/legacy_serial.c
@@ -309,7 +309,8 @@ void __init find_legacy_serial_ports(void)
/* First fill our array with SOC ports */
for_each_compatible_node(np, "serial", "ns16550") {
struct device_node *soc = of_get_parent(np);
- if (soc && !strcmp(soc->type, "soc")) {
+ if (soc && (!strcmp(soc->type, "soc") ||
+ of_device_is_compatible(soc, "soc"))) {
index = add_legacy_soc_port(np, np);
if (index >= 0 && np == stdout)
legacy_serial_console = index;
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index e75fd44..96851ae 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/arch/powerpc/sysdev/fsl_soc.c
@@ -48,27 +48,31 @@ static phys_addr_t immrbase = -1;
phys_addr_t get_immrbase(void)
{
struct device_node *soc;
+ int size;
+ u32 naddr;
+ const u32 *prop;
if (immrbase != -1)
return immrbase;
- soc = of_find_node_by_type(NULL, "soc");
- if (soc) {
- int size;
- u32 naddr;
- const u32 *prop = of_get_property(soc, "#address-cells", &size);
+ soc = of_find_compatible_node(NULL, NULL, "fsl,soc");
+ if (!soc) {
+ soc = of_find_node_by_type(NULL, "soc");
+ if (!soc)
+ return immrbase;
+ }
- if (prop && size == 4)
- naddr = *prop;
- else
- naddr = 2;
+ prop = of_get_property(soc, "#address-cells", &size);
+ if (prop && size == 4)
+ naddr = *prop;
+ else
+ naddr = 2;
- prop = of_get_property(soc, "ranges", &size);
- if (prop)
- immrbase = of_translate_address(soc, prop + naddr);
+ prop = of_get_property(soc, "ranges", &size);
+ if (prop)
+ immrbase = of_translate_address(soc, prop + naddr);
- of_node_put(soc);
- }
+ of_node_put(soc);
return immrbase;
}
@@ -528,11 +532,13 @@ static int __init mpc83xx_wdt_init(void)
goto nodev;
}
- soc = of_find_node_by_type(NULL, "soc");
-
+ soc = of_find_compatible_node(NULL, NULL, "fsl,soc");
if (!soc) {
- ret = -ENODEV;
- goto nosoc;
+ soc = of_find_node_by_type(NULL, "soc");
+ if (!soc) {
+ ret = -ENODEV;
+ goto nosoc;
+ }
}
freq = of_get_property(soc, "bus-frequency", NULL);
@@ -1373,9 +1379,12 @@ int __init fsl_spi_init(struct spi_board_info *board_infos,
const u32 *freq;
int size;
- np = of_find_node_by_type(NULL, "soc");
- if (!np)
- return -ENODEV;
+ np = of_find_compatible_node(NULL, NULL, "fsl,soc");
+ if (!np) {
+ np = of_find_node_by_type(NULL, "soc");
+ if (!np)
+ return -ENODEV;
+ }
freq = of_get_property(np, "clock-frequency", &size);
if (!freq || size != sizeof(*freq) || *freq == 0) {
--
1.5.2.2
^ permalink raw reply related
* [PATCH 4/5] [POWERPC] fsl_spi_init and users: stop using device_type = "spi"
From: Anton Vorontsov @ 2008-01-24 15:40 UTC (permalink / raw)
To: linuxppc-dev
In-Reply-To: <20080124151850.GA15190@localhost.localdomain>
Also:
- rename "fsl_spi" to "fsl,spi";
- add and use cell-index property, if found;
- split probing code out of fsl_spi_init, thus we can call
it for legacy device_type probing and new "compatible" probing.
Per http://ozlabs.org/pipermail/linuxppc-dev/2007-December/048388.html
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
---
Documentation/powerpc/booting-without-of.txt | 8 +-
arch/powerpc/boot/dts/mpc8313erdb.dts | 4 +-
arch/powerpc/boot/dts/mpc832x_mds.dts | 8 +-
arch/powerpc/boot/dts/mpc832x_rdb.dts | 8 +-
arch/powerpc/boot/dts/mpc8349emitx.dts | 4 +-
arch/powerpc/boot/dts/mpc8349emitxgp.dts | 4 +-
arch/powerpc/boot/dts/mpc834x_mds.dts | 4 +-
arch/powerpc/boot/dts/mpc836x_mds.dts | 8 +-
arch/powerpc/boot/dts/mpc836x_rdk.dts | 6 +-
arch/powerpc/boot/dts/mpc8568mds.dts | 8 +-
arch/powerpc/sysdev/fsl_soc.c | 94 ++++++++++++++++----------
11 files changed, 88 insertions(+), 68 deletions(-)
diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt
index f9545b0..bedfdd0 100644
--- a/Documentation/powerpc/booting-without-of.txt
+++ b/Documentation/powerpc/booting-without-of.txt
@@ -1568,8 +1568,8 @@ platforms are moved over to use the flattened-device-tree model.
ii) SPI (Serial Peripheral Interface)
Required properties:
- - device_type : should be "spi".
- - compatible : should be "fsl_spi".
+ - cell-index : SPI controller index.
+ - compatible : should be "fsl,spi".
- mode : the SPI operation mode, it can be "cpu" or "cpu-qe".
- reg : Offset and length of the register set for the device
- interrupts : <a b> where a is the interrupt number and b is a
@@ -1582,8 +1582,8 @@ platforms are moved over to use the flattened-device-tree model.
Example:
spi@4c0 {
- device_type = "spi";
- compatible = "fsl_spi";
+ cell-index = <0>;
+ compatible = "fsl,spi";
reg = <4c0 40>;
interrupts = <82 0>;
interrupt-parent = <700>;
diff --git a/arch/powerpc/boot/dts/mpc8313erdb.dts b/arch/powerpc/boot/dts/mpc8313erdb.dts
index 9bcf2c9..20a03f5 100644
--- a/arch/powerpc/boot/dts/mpc8313erdb.dts
+++ b/arch/powerpc/boot/dts/mpc8313erdb.dts
@@ -130,8 +130,8 @@
};
spi@7000 {
- device_type = "spi";
- compatible = "fsl_spi";
+ cell-index = <0>;
+ compatible = "fsl,spi";
reg = <7000 1000>;
interrupts = <10 8>;
interrupt-parent = < &ipic >;
diff --git a/arch/powerpc/boot/dts/mpc832x_mds.dts b/arch/powerpc/boot/dts/mpc832x_mds.dts
index 1bb75ef..15bb345 100644
--- a/arch/powerpc/boot/dts/mpc832x_mds.dts
+++ b/arch/powerpc/boot/dts/mpc832x_mds.dts
@@ -223,8 +223,8 @@
};
spi@4c0 {
- device_type = "spi";
- compatible = "fsl_spi";
+ cell-index = <0>;
+ compatible = "fsl,spi";
reg = <4c0 40>;
interrupts = <2>;
interrupt-parent = < &qeic >;
@@ -232,8 +232,8 @@
};
spi@500 {
- device_type = "spi";
- compatible = "fsl_spi";
+ cell-index = <1>;
+ compatible = "fsl,spi";
reg = <500 40>;
interrupts = <1>;
interrupt-parent = < &qeic >;
diff --git a/arch/powerpc/boot/dts/mpc832x_rdb.dts b/arch/powerpc/boot/dts/mpc832x_rdb.dts
index f6a8633..f086fac 100644
--- a/arch/powerpc/boot/dts/mpc832x_rdb.dts
+++ b/arch/powerpc/boot/dts/mpc832x_rdb.dts
@@ -184,8 +184,8 @@
};
spi@4c0 {
- device_type = "spi";
- compatible = "fsl_spi";
+ cell-index = <0>;
+ compatible = "fsl,spi";
reg = <4c0 40>;
interrupts = <2>;
interrupt-parent = <&qeic>;
@@ -193,8 +193,8 @@
};
spi@500 {
- device_type = "spi";
- compatible = "fsl_spi";
+ cell-index = <1>;
+ compatible = "fsl,spi";
reg = <500 40>;
interrupts = <1>;
interrupt-parent = <&qeic>;
diff --git a/arch/powerpc/boot/dts/mpc8349emitx.dts b/arch/powerpc/boot/dts/mpc8349emitx.dts
index 04b8da4..4a4ddea 100644
--- a/arch/powerpc/boot/dts/mpc8349emitx.dts
+++ b/arch/powerpc/boot/dts/mpc8349emitx.dts
@@ -82,8 +82,8 @@
};
spi@7000 {
- device_type = "spi";
- compatible = "fsl_spi";
+ cell-index = <0>;
+ compatible = "fsl,spi";
reg = <7000 1000>;
interrupts = <10 8>;
interrupt-parent = < &ipic >;
diff --git a/arch/powerpc/boot/dts/mpc8349emitxgp.dts b/arch/powerpc/boot/dts/mpc8349emitxgp.dts
index a06ff92..79983d7 100644
--- a/arch/powerpc/boot/dts/mpc8349emitxgp.dts
+++ b/arch/powerpc/boot/dts/mpc8349emitxgp.dts
@@ -80,8 +80,8 @@
};
spi@7000 {
- device_type = "spi";
- compatible = "fsl_spi";
+ cell-index = <0>;
+ compatible = "fsl,spi";
reg = <7000 1000>;
interrupts = <10 8>;
interrupt-parent = < &ipic >;
diff --git a/arch/powerpc/boot/dts/mpc834x_mds.dts b/arch/powerpc/boot/dts/mpc834x_mds.dts
index 4120e92..1736e03 100644
--- a/arch/powerpc/boot/dts/mpc834x_mds.dts
+++ b/arch/powerpc/boot/dts/mpc834x_mds.dts
@@ -93,8 +93,8 @@
};
spi@7000 {
- device_type = "spi";
- compatible = "fsl_spi";
+ cell-index = <0>;
+ compatible = "fsl,spi";
reg = <7000 1000>;
interrupts = <10 8>;
interrupt-parent = < &ipic >;
diff --git a/arch/powerpc/boot/dts/mpc836x_mds.dts b/arch/powerpc/boot/dts/mpc836x_mds.dts
index fa98bdf..d3b8262 100644
--- a/arch/powerpc/boot/dts/mpc836x_mds.dts
+++ b/arch/powerpc/boot/dts/mpc836x_mds.dts
@@ -225,8 +225,8 @@
};
spi@4c0 {
- device_type = "spi";
- compatible = "fsl_spi";
+ cell-index = <0>;
+ compatible = "fsl,spi";
reg = <4c0 40>;
interrupts = <2>;
interrupt-parent = < &qeic >;
@@ -234,8 +234,8 @@
};
spi@500 {
- device_type = "spi";
- compatible = "fsl_spi";
+ cell-index = <1>;
+ compatible = "fsl,spi";
reg = <500 40>;
interrupts = <1>;
interrupt-parent = < &qeic >;
diff --git a/arch/powerpc/boot/dts/mpc836x_rdk.dts b/arch/powerpc/boot/dts/mpc836x_rdk.dts
index e299442..6efa5b7 100644
--- a/arch/powerpc/boot/dts/mpc836x_rdk.dts
+++ b/arch/powerpc/boot/dts/mpc836x_rdk.dts
@@ -165,9 +165,8 @@
};
spi@4c0 {
- device_type = "spi";
cell-index = <0>;
- compatible = "fsl,spi", "fsl_spi";
+ compatible = "fsl,spi";
reg = <0x4c0 0x40>;
interrupts = <2>;
interrupt-parent = <&qeic>;
@@ -175,9 +174,8 @@
};
spi@500 {
- device_type = "spi";
cell-index = <1>;
- compatible = "fsl,spi", "fsl_spi";
+ compatible = "fsl,spi";
reg = <0x500 0x40>;
interrupts = <1>;
interrupt-parent = <&qeic>;
diff --git a/arch/powerpc/boot/dts/mpc8568mds.dts b/arch/powerpc/boot/dts/mpc8568mds.dts
index 692d5bd..c929fba 100644
--- a/arch/powerpc/boot/dts/mpc8568mds.dts
+++ b/arch/powerpc/boot/dts/mpc8568mds.dts
@@ -302,8 +302,8 @@
};
spi@4c0 {
- device_type = "spi";
- compatible = "fsl_spi";
+ cell-index = <0>;
+ compatible = "fsl,spi";
reg = <4c0 40>;
interrupts = <2>;
interrupt-parent = <&qeic>;
@@ -311,8 +311,8 @@
};
spi@500 {
- device_type = "spi";
- compatible = "fsl_spi";
+ cell-index = <1>;
+ compatible = "fsl,spi";
reg = <500 40>;
interrupts = <1>;
interrupt-parent = <&qeic>;
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index f4473ad..e75fd44 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/arch/powerpc/sysdev/fsl_soc.c
@@ -1276,42 +1276,17 @@ arch_initcall(cpm_smc_uart_of_init);
#endif /* CONFIG_8xx */
#endif /* CONFIG_PPC_CPM_NEW_BINDING */
-int __init fsl_spi_init(struct spi_board_info *board_infos,
- unsigned int num_board_infos,
- void (*activate_cs)(u8 cs, u8 polarity),
- void (*deactivate_cs)(u8 cs, u8 polarity))
+static int __init of_fsl_spi_probe(char *type, char *compatible, u32 sysclk,
+ struct spi_board_info *board_infos,
+ unsigned int num_board_infos,
+ void (*activate_cs)(u8 cs, u8 polarity),
+ void (*deactivate_cs)(u8 cs, u8 polarity))
{
struct device_node *np;
- unsigned int i;
- u32 sysclk;
-
- /* SPI controller is either clocked from QE or SoC clock */
- sysclk = get_brgfreq();
- if (sysclk == -1) {
- const u32 *freq;
- int size;
-
- np = of_find_node_by_type(NULL, "soc");
- if (!np)
- return -ENODEV;
-
- freq = of_get_property(np, "clock-frequency", &size);
- if (!freq || size != sizeof(*freq) || *freq == 0) {
- freq = of_get_property(np, "bus-frequency", &size);
- if (!freq || size != sizeof(*freq) || *freq == 0) {
- of_node_put(np);
- return -ENODEV;
- }
- }
-
- sysclk = *freq;
- of_node_put(np);
- }
+ unsigned int i = 0;
- for (np = NULL, i = 1;
- (np = of_find_compatible_node(np, "spi", "fsl_spi")) != NULL;
- i++) {
- int ret = 0;
+ for_each_compatible_node(np, type, compatible) {
+ int ret;
unsigned int j;
const void *prop;
struct resource res[2];
@@ -1330,6 +1305,10 @@ int __init fsl_spi_init(struct spi_board_info *board_infos,
goto err;
pdata.bus_num = *(u32 *)prop;
+ prop = of_get_property(np, "cell-index", NULL);
+ if (prop)
+ i = *(u32 *)prop;
+
prop = of_get_property(np, "mode", NULL);
if (prop && !strcmp(prop, "cpu-qe"))
pdata.qe_mode = 1;
@@ -1340,7 +1319,7 @@ int __init fsl_spi_init(struct spi_board_info *board_infos,
}
if (!pdata.max_chipselect)
- goto err;
+ continue;
ret = of_address_to_resource(np, 0, &res[0]);
if (ret)
@@ -1367,13 +1346,56 @@ int __init fsl_spi_init(struct spi_board_info *board_infos,
if (ret)
goto unreg;
- continue;
+ goto next;
unreg:
platform_device_del(pdev);
err:
- continue;
+ pr_err("%s: registration failed\n", np->full_name);
+next:
+ i++;
}
+ return i;
+}
+
+int __init fsl_spi_init(struct spi_board_info *board_infos,
+ unsigned int num_board_infos,
+ void (*activate_cs)(u8 cs, u8 polarity),
+ void (*deactivate_cs)(u8 cs, u8 polarity))
+{
+ u32 sysclk;
+ int ret;
+
+ /* SPI controller is either clocked from QE or SoC clock */
+ sysclk = get_brgfreq();
+ if (sysclk == -1) {
+ struct device_node *np;
+ const u32 *freq;
+ int size;
+
+ np = of_find_node_by_type(NULL, "soc");
+ if (!np)
+ return -ENODEV;
+
+ freq = of_get_property(np, "clock-frequency", &size);
+ if (!freq || size != sizeof(*freq) || *freq == 0) {
+ freq = of_get_property(np, "bus-frequency", &size);
+ if (!freq || size != sizeof(*freq) || *freq == 0) {
+ of_node_put(np);
+ return -ENODEV;
+ }
+ }
+
+ sysclk = *freq;
+ of_node_put(np);
+ }
+
+ ret = of_fsl_spi_probe(NULL, "fsl,spi", sysclk, board_infos,
+ num_board_infos, activate_cs, deactivate_cs);
+ if (!ret)
+ of_fsl_spi_probe("spi", "fsl_spi", sysclk, board_infos,
+ num_board_infos, activate_cs, deactivate_cs);
+
return spi_register_board_info(board_infos, num_board_infos);
}
--
1.5.2.2
^ permalink raw reply related
* [PATCH 3/5] [POWERPC][SPI] use brg-frequency for SPI in QE
From: Anton Vorontsov @ 2008-01-24 15:40 UTC (permalink / raw)
To: linuxppc-dev
In-Reply-To: <20080124151850.GA15190@localhost.localdomain>
In case of QE we can use brg-frequency (which is qeclk/2).
Thus no need to divide sysclk in the spi_mpc83xx.
This patch also adds code to use get_brgfreq() on QE chips.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
---
arch/powerpc/sysdev/fsl_soc.c | 44 ++++++++++++++++++++++++++++------------
drivers/spi/spi_mpc83xx.c | 6 +----
2 files changed, 32 insertions(+), 18 deletions(-)
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index 26f7d83..f4473ad 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/arch/powerpc/sysdev/fsl_soc.c
@@ -75,7 +75,7 @@ phys_addr_t get_immrbase(void)
EXPORT_SYMBOL(get_immrbase);
-#if defined(CONFIG_CPM2) || defined(CONFIG_8xx)
+#if defined(CONFIG_CPM2) || defined(CONFIG_QUICC_ENGINE) || defined(CONFIG_8xx)
static u32 brgfreq = -1;
@@ -100,11 +100,21 @@ u32 get_brgfreq(void)
/* Legacy device binding -- will go away when no users are left. */
node = of_find_node_by_type(NULL, "cpm");
+ if (!node)
+ node = of_find_compatible_node(NULL, NULL, "fsl,qe");
+ if (!node)
+ node = of_find_node_by_type(NULL, "qe");
+
if (node) {
prop = of_get_property(node, "brg-frequency", &size);
if (prop && size == 4)
brgfreq = *prop;
+ if (brgfreq == -1 || brgfreq == 0) {
+ prop = of_get_property(node, "bus-frequency", &size);
+ if (prop && size == 4)
+ brgfreq = *prop / 2;
+ }
of_node_put(node);
}
@@ -1273,22 +1283,30 @@ int __init fsl_spi_init(struct spi_board_info *board_infos,
{
struct device_node *np;
unsigned int i;
- const u32 *sysclk;
+ u32 sysclk;
/* SPI controller is either clocked from QE or SoC clock */
- np = of_find_compatible_node(NULL, NULL, "fsl,qe");
- if (!np)
- np = of_find_node_by_type(NULL, "qe");
+ sysclk = get_brgfreq();
+ if (sysclk == -1) {
+ const u32 *freq;
+ int size;
- if (!np)
np = of_find_node_by_type(NULL, "soc");
+ if (!np)
+ return -ENODEV;
+
+ freq = of_get_property(np, "clock-frequency", &size);
+ if (!freq || size != sizeof(*freq) || *freq == 0) {
+ freq = of_get_property(np, "bus-frequency", &size);
+ if (!freq || size != sizeof(*freq) || *freq == 0) {
+ of_node_put(np);
+ return -ENODEV;
+ }
+ }
- if (!np)
- return -ENODEV;
-
- sysclk = of_get_property(np, "bus-frequency", NULL);
- if (!sysclk)
- return -ENODEV;
+ sysclk = *freq;
+ of_node_put(np);
+ }
for (np = NULL, i = 1;
(np = of_find_compatible_node(np, "spi", "fsl_spi")) != NULL;
@@ -1305,7 +1323,7 @@ int __init fsl_spi_init(struct spi_board_info *board_infos,
memset(res, 0, sizeof(res));
- pdata.sysclk = *sysclk;
+ pdata.sysclk = sysclk;
prop = of_get_property(np, "reg", NULL);
if (!prop)
diff --git a/drivers/spi/spi_mpc83xx.c b/drivers/spi/spi_mpc83xx.c
index 4580b9c..04f7cd9 100644
--- a/drivers/spi/spi_mpc83xx.c
+++ b/drivers/spi/spi_mpc83xx.c
@@ -436,11 +436,7 @@ static int __init mpc83xx_spi_probe(struct platform_device *dev)
mpc83xx_spi->qe_mode = pdata->qe_mode;
mpc83xx_spi->get_rx = mpc83xx_spi_rx_buf_u8;
mpc83xx_spi->get_tx = mpc83xx_spi_tx_buf_u8;
-
- if (mpc83xx_spi->qe_mode)
- mpc83xx_spi->spibrg = pdata->sysclk / 2;
- else
- mpc83xx_spi->spibrg = pdata->sysclk;
+ mpc83xx_spi->spibrg = pdata->sysclk;
mpc83xx_spi->rx_shift = 0;
mpc83xx_spi->tx_shift = 0;
--
1.5.2.2
^ permalink raw reply related
* [PATCH 2/5] [POWERPC][NET] ucc_geth_mii and users: get rid of device_type
From: Anton Vorontsov @ 2008-01-24 15:40 UTC (permalink / raw)
To: linuxppc-dev
In-Reply-To: <20080124151850.GA15190@localhost.localdomain>
device_type property is bogus, thus use proper compatible.
Also change compatible property to "fsl,ucc-mdio".
Per http://ozlabs.org/pipermail/linuxppc-dev/2007-December/048388.html
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
---
arch/powerpc/boot/dts/mpc832x_mds.dts | 3 +--
arch/powerpc/boot/dts/mpc832x_rdb.dts | 3 +--
arch/powerpc/boot/dts/mpc836x_mds.dts | 3 +--
arch/powerpc/boot/dts/mpc836x_rdk.dts | 3 +--
arch/powerpc/boot/dts/mpc8568mds.dts | 2 +-
drivers/net/ucc_geth_mii.c | 3 +++
6 files changed, 8 insertions(+), 9 deletions(-)
diff --git a/arch/powerpc/boot/dts/mpc832x_mds.dts b/arch/powerpc/boot/dts/mpc832x_mds.dts
index e300df4..1bb75ef 100644
--- a/arch/powerpc/boot/dts/mpc832x_mds.dts
+++ b/arch/powerpc/boot/dts/mpc832x_mds.dts
@@ -304,8 +304,7 @@
#address-cells = <1>;
#size-cells = <0>;
reg = <2320 18>;
- device_type = "mdio";
- compatible = "ucc_geth_phy";
+ compatible = "fsl,ucc-mdio";
phy3: ethernet-phy@03 {
interrupt-parent = < &ipic >;
diff --git a/arch/powerpc/boot/dts/mpc832x_rdb.dts b/arch/powerpc/boot/dts/mpc832x_rdb.dts
index 4d5cfd3..f6a8633 100644
--- a/arch/powerpc/boot/dts/mpc832x_rdb.dts
+++ b/arch/powerpc/boot/dts/mpc832x_rdb.dts
@@ -237,8 +237,7 @@
#address-cells = <1>;
#size-cells = <0>;
reg = <3120 18>;
- device_type = "mdio";
- compatible = "ucc_geth_phy";
+ compatible = "fsl,ucc-mdio";
phy00:ethernet-phy@00 {
interrupt-parent = <&pic>;
diff --git a/arch/powerpc/boot/dts/mpc836x_mds.dts b/arch/powerpc/boot/dts/mpc836x_mds.dts
index 9a2581b..fa98bdf 100644
--- a/arch/powerpc/boot/dts/mpc836x_mds.dts
+++ b/arch/powerpc/boot/dts/mpc836x_mds.dts
@@ -288,8 +288,7 @@
#address-cells = <1>;
#size-cells = <0>;
reg = <2120 18>;
- device_type = "mdio";
- compatible = "ucc_geth_phy";
+ compatible = "fsl,ucc-mdio";
phy0: ethernet-phy@00 {
interrupt-parent = < &ipic >;
diff --git a/arch/powerpc/boot/dts/mpc836x_rdk.dts b/arch/powerpc/boot/dts/mpc836x_rdk.dts
index e244619..e299442 100644
--- a/arch/powerpc/boot/dts/mpc836x_rdk.dts
+++ b/arch/powerpc/boot/dts/mpc836x_rdk.dts
@@ -251,8 +251,7 @@
mdio@2120 {
#address-cells = <1>;
#size-cells = <0>;
- device_type = "mdio";
- compatible = "fsl,ucc-mdio", "ucc_geth_phy";
+ compatible = "fsl,ucc-mdio";
reg = <0x2120 0x18>;
phy1: ethernet-phy@1 {
diff --git a/arch/powerpc/boot/dts/mpc8568mds.dts b/arch/powerpc/boot/dts/mpc8568mds.dts
index 04f5c6f..692d5bd 100644
--- a/arch/powerpc/boot/dts/mpc8568mds.dts
+++ b/arch/powerpc/boot/dts/mpc8568mds.dts
@@ -357,7 +357,7 @@
#address-cells = <1>;
#size-cells = <0>;
reg = <2120 18>;
- compatible = "ucc_geth_phy";
+ compatible = "fsl,ucc-mdio";
/* These are the same PHYs as on
* gianfar's MDIO bus */
diff --git a/drivers/net/ucc_geth_mii.c b/drivers/net/ucc_geth_mii.c
index df884f0..e3ba14a 100644
--- a/drivers/net/ucc_geth_mii.c
+++ b/drivers/net/ucc_geth_mii.c
@@ -256,6 +256,9 @@ static struct of_device_id uec_mdio_match[] = {
.type = "mdio",
.compatible = "ucc_geth_phy",
},
+ {
+ .compatible = "fsl,ucc-mdio",
+ },
{},
};
--
1.5.2.2
^ permalink raw reply related
* [PATCH 1/5] [POWERPC] qe_lib and users: get rid of most device_types and model
From: Anton Vorontsov @ 2008-01-24 15:39 UTC (permalink / raw)
To: linuxppc-dev
In-Reply-To: <20080124151850.GA15190@localhost.localdomain>
Now we're searching for "fsl,qe", "fsl,qe-muram", "fsl,qe-muram-data"
and "fsl,qe-ic".
Unfortunately it's still impossible to remove device_type = "qe"
from the existing device trees (except for MPC8360E-RDK), because
older u-boots are looking for it.
Per http://ozlabs.org/pipermail/linuxppc-dev/2007-December/048388.html
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
---
Documentation/powerpc/booting-without-of.txt | 11 +++--
arch/powerpc/boot/dts/mpc832x_mds.dts | 9 ++--
arch/powerpc/boot/dts/mpc832x_rdb.dts | 10 +++--
arch/powerpc/boot/dts/mpc836x_mds.dts | 10 +++--
arch/powerpc/boot/dts/mpc836x_rdk.dts | 1 -
arch/powerpc/boot/dts/mpc8568mds.dts | 10 +++--
arch/powerpc/platforms/83xx/mpc832x_mds.c | 11 +++--
arch/powerpc/platforms/83xx/mpc832x_rdb.c | 11 +++--
arch/powerpc/platforms/83xx/mpc836x_mds.c | 11 +++--
arch/powerpc/platforms/85xx/mpc85xx_mds.c | 32 ++++++++-----
arch/powerpc/sysdev/fsl_soc.c | 5 ++-
arch/powerpc/sysdev/qe_lib/qe.c | 63 ++++++++++++++++++--------
12 files changed, 117 insertions(+), 67 deletions(-)
diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt
index da98154..f9545b0 100644
--- a/Documentation/powerpc/booting-without-of.txt
+++ b/Documentation/powerpc/booting-without-of.txt
@@ -1543,7 +1543,7 @@ platforms are moved over to use the flattened-device-tree model.
i) Root QE device
Required properties:
- - device_type : should be "qe";
+ - compatible : should be "fsl,qe";
- model : precise model of the QE, Can be "QE", "CPM", or "CPM2"
- reg : offset and length of the device registers.
- bus-frequency : the clock frequency for QUICC Engine.
@@ -1557,8 +1557,7 @@ platforms are moved over to use the flattened-device-tree model.
#address-cells = <1>;
#size-cells = <1>;
#interrupt-cells = <2>;
- device_type = "qe";
- model = "QE";
+ compatible = "fsl,qe";
ranges = <0 e0100000 00100000>;
reg = <e0100000 480>;
brg-frequency = <0>;
@@ -1781,7 +1780,7 @@ platforms are moved over to use the flattened-device-tree model.
vii) Multi-User RAM (MURAM)
Required properties:
- - device_type : should be "muram".
+ - compatible : should be "fsl,qe-muram", "fsl,cpm-muram".
- mode : the could be "host" or "slave".
- ranges : Should be defined as specified in 1) to describe the
translation of MURAM addresses.
@@ -1791,10 +1790,12 @@ platforms are moved over to use the flattened-device-tree model.
Example:
muram@10000 {
- device_type = "muram";
+ compatible = "fsl,qe-muram", "fsl,cpm-muram";
ranges = <0 00010000 0000c000>;
data-only@0{
+ compatible = "fsl,qe-muram-data",
+ "fsl,cpm-muram-data";
reg = <0 c000>;
};
};
diff --git a/arch/powerpc/boot/dts/mpc832x_mds.dts b/arch/powerpc/boot/dts/mpc832x_mds.dts
index 6902524..e300df4 100644
--- a/arch/powerpc/boot/dts/mpc832x_mds.dts
+++ b/arch/powerpc/boot/dts/mpc832x_mds.dts
@@ -206,17 +206,18 @@
#size-cells = <1>;
device_type = "qe";
compatible = "fsl,qe";
- model = "QE";
ranges = <0 e0100000 00100000>;
reg = <e0100000 480>;
brg-frequency = <0>;
bus-frequency = <BCD3D80>;
muram@10000 {
- device_type = "muram";
+ compatible = "fsl,qe-muram", "fsl,cpm-muram";
ranges = <0 00010000 00004000>;
data-only@0 {
+ compatible = "fsl,qe-muram-data",
+ "fsl,cpm-muram-data";
reg = <0 4000>;
};
};
@@ -320,9 +321,9 @@
};
};
- qeic: qeic@80 {
+ qeic: interrupt-controller@80 {
interrupt-controller;
- device_type = "qeic";
+ compatible = "fsl,qe-ic";
#address-cells = <0>;
#interrupt-cells = <1>;
reg = <80 80>;
diff --git a/arch/powerpc/boot/dts/mpc832x_rdb.dts b/arch/powerpc/boot/dts/mpc832x_rdb.dts
index 10ff7aa..4d5cfd3 100644
--- a/arch/powerpc/boot/dts/mpc832x_rdb.dts
+++ b/arch/powerpc/boot/dts/mpc832x_rdb.dts
@@ -166,17 +166,19 @@
#address-cells = <1>;
#size-cells = <1>;
device_type = "qe";
- model = "QE";
+ compatible = "fsl,qe";
ranges = <0 e0100000 00100000>;
reg = <e0100000 480>;
brg-frequency = <0>;
bus-frequency = <BCD3D80>;
muram@10000 {
- device_type = "muram";
+ compatible = "fsl,qe-muram", "fsl,cpm-muram";
ranges = <0 00010000 00004000>;
data-only@0 {
+ compatible = "fsl,qe-muram-data",
+ "fsl,cpm-muram-data";
reg = <0 4000>;
};
};
@@ -252,9 +254,9 @@
};
};
- qeic:qeic@80 {
+ qeic:interrupt-controller@80 {
interrupt-controller;
- device_type = "qeic";
+ compatible = "fsl,qe-ic";
#address-cells = <0>;
#interrupt-cells = <1>;
reg = <80 80>;
diff --git a/arch/powerpc/boot/dts/mpc836x_mds.dts b/arch/powerpc/boot/dts/mpc836x_mds.dts
index 2181d2c..9a2581b 100644
--- a/arch/powerpc/boot/dts/mpc836x_mds.dts
+++ b/arch/powerpc/boot/dts/mpc836x_mds.dts
@@ -207,17 +207,19 @@
#address-cells = <1>;
#size-cells = <1>;
device_type = "qe";
- model = "QE";
+ compatible = "fsl,qe";
ranges = <0 e0100000 00100000>;
reg = <e0100000 480>;
brg-frequency = <0>;
bus-frequency = <179A7B00>;
muram@10000 {
- device_type = "muram";
+ compatible = "fsl,qe-muram", "fsl,cpm-muram";
ranges = <0 00010000 0000c000>;
data-only@0{
+ compatible = "fsl,qe-muram-data",
+ "fsl,cpm-muram-data";
reg = <0 c000>;
};
};
@@ -303,9 +305,9 @@
};
};
- qeic: qeic@80 {
+ qeic: interrupt-controller@80 {
interrupt-controller;
- device_type = "qeic";
+ compatible = "fsl,qe-ic";
#address-cells = <0>;
#interrupt-cells = <1>;
reg = <80 80>;
diff --git a/arch/powerpc/boot/dts/mpc836x_rdk.dts b/arch/powerpc/boot/dts/mpc836x_rdk.dts
index b8f87ac..e244619 100644
--- a/arch/powerpc/boot/dts/mpc836x_rdk.dts
+++ b/arch/powerpc/boot/dts/mpc836x_rdk.dts
@@ -145,7 +145,6 @@
qe@e0100000 {
#address-cells = <1>;
#size-cells = <1>;
- device_type = "qe";
compatible = "fsl,qe";
ranges = <0 0xe0100000 0x100000>;
reg = <0xe0100000 0x480>;
diff --git a/arch/powerpc/boot/dts/mpc8568mds.dts b/arch/powerpc/boot/dts/mpc8568mds.dts
index 5818a7c..04f5c6f 100644
--- a/arch/powerpc/boot/dts/mpc8568mds.dts
+++ b/arch/powerpc/boot/dts/mpc8568mds.dts
@@ -284,17 +284,19 @@
#address-cells = <1>;
#size-cells = <1>;
device_type = "qe";
- model = "QE";
+ compatible = "fsl,qe";
ranges = <0 e0080000 00040000>;
reg = <e0080000 480>;
brg-frequency = <0>;
bus-frequency = <179A7B00>;
muram@10000 {
- device_type = "muram";
+ compatible = "fsl,qe-muram", "fsl,cpm-muram";
ranges = <0 00010000 0000c000>;
data-only@0{
+ compatible = "fsl,qe-muram-data",
+ "fsl,cpm-muram-data";
reg = <0 c000>;
};
};
@@ -385,9 +387,9 @@
};
};
- qeic: qeic@80 {
+ qeic: interrupt-controller@80 {
interrupt-controller;
- device_type = "qeic";
+ compatible = "fsl,qe-ic";
#address-cells = <0>;
#interrupt-cells = <1>;
reg = <80 80>;
diff --git a/arch/powerpc/platforms/83xx/mpc832x_mds.c b/arch/powerpc/platforms/83xx/mpc832x_mds.c
index dbdd4ad..6dbc6ea 100644
--- a/arch/powerpc/platforms/83xx/mpc832x_mds.c
+++ b/arch/powerpc/platforms/83xx/mpc832x_mds.c
@@ -105,6 +105,7 @@ static struct of_device_id mpc832x_ids[] = {
{ .type = "soc", },
{ .compatible = "soc", },
{ .type = "qe", },
+ { .compatible = "fsl,qe", },
{},
};
@@ -134,10 +135,12 @@ static void __init mpc832x_sys_init_IRQ(void)
of_node_put(np);
#ifdef CONFIG_QUICC_ENGINE
- np = of_find_node_by_type(NULL, "qeic");
- if (!np)
- return;
-
+ np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic");
+ if (!np) {
+ np = of_find_node_by_type(NULL, "qeic");
+ if (!np)
+ return;
+ }
qe_ic_init(np, 0, qe_ic_cascade_low_ipic, qe_ic_cascade_high_ipic);
of_node_put(np);
#endif /* CONFIG_QUICC_ENGINE */
diff --git a/arch/powerpc/platforms/83xx/mpc832x_rdb.c b/arch/powerpc/platforms/83xx/mpc832x_rdb.c
index 5fddd22..9f0fd88 100644
--- a/arch/powerpc/platforms/83xx/mpc832x_rdb.c
+++ b/arch/powerpc/platforms/83xx/mpc832x_rdb.c
@@ -115,6 +115,7 @@ static struct of_device_id mpc832x_ids[] = {
{ .type = "soc", },
{ .compatible = "soc", },
{ .type = "qe", },
+ { .compatible = "fsl,qe", },
{},
};
@@ -145,10 +146,12 @@ void __init mpc832x_rdb_init_IRQ(void)
of_node_put(np);
#ifdef CONFIG_QUICC_ENGINE
- np = of_find_node_by_type(NULL, "qeic");
- if (!np)
- return;
-
+ np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic");
+ if (!np) {
+ np = of_find_node_by_type(NULL, "qeic");
+ if (!np)
+ return;
+ }
qe_ic_init(np, 0, qe_ic_cascade_low_ipic, qe_ic_cascade_high_ipic);
of_node_put(np);
#endif /* CONFIG_QUICC_ENGINE */
diff --git a/arch/powerpc/platforms/83xx/mpc836x_mds.c b/arch/powerpc/platforms/83xx/mpc836x_mds.c
index db491ec..c2e5de6 100644
--- a/arch/powerpc/platforms/83xx/mpc836x_mds.c
+++ b/arch/powerpc/platforms/83xx/mpc836x_mds.c
@@ -136,6 +136,7 @@ static struct of_device_id mpc836x_ids[] = {
{ .type = "soc", },
{ .compatible = "soc", },
{ .type = "qe", },
+ { .compatible = "fsl,qe", },
{},
};
@@ -165,10 +166,12 @@ static void __init mpc836x_mds_init_IRQ(void)
of_node_put(np);
#ifdef CONFIG_QUICC_ENGINE
- np = of_find_node_by_type(NULL, "qeic");
- if (!np)
- return;
-
+ np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic");
+ if (!np) {
+ np = of_find_node_by_type(NULL, "qeic");
+ if (!np)
+ return;
+ }
qe_ic_init(np, 0, qe_ic_cascade_low_ipic, qe_ic_cascade_high_ipic);
of_node_put(np);
#endif /* CONFIG_QUICC_ENGINE */
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
index 4fdf5ab..25f8bc7 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
@@ -94,21 +94,25 @@ static void __init mpc85xx_mds_setup_arch(void)
#endif
#ifdef CONFIG_QUICC_ENGINE
- if ((np = of_find_node_by_name(NULL, "qe")) != NULL) {
- qe_reset();
- of_node_put(np);
+ np = of_find_compatible_node(NULL, NULL, "fsl,qe");
+ if (!np) {
+ np = of_find_node_by_name(NULL, "qe");
+ if (!np)
+ return;
}
- if ((np = of_find_node_by_name(NULL, "par_io")) != NULL) {
- struct device_node *ucc = NULL;
+ qe_reset();
+ of_node_put(np);
+
+ np = of_find_node_by_name(NULL, "par_io");
+ if (np) {
+ struct device_node *ucc;
par_io_init(np);
of_node_put(np);
- for ( ;(ucc = of_find_node_by_name(ucc, "ucc")) != NULL;)
+ for_each_node_by_name(ucc, "ucc")
par_io_of_config(ucc);
-
- of_node_put(ucc);
}
if (bcsr_regs) {
@@ -131,7 +135,6 @@ static void __init mpc85xx_mds_setup_arch(void)
iounmap(bcsr_regs);
}
-
#endif /* CONFIG_QUICC_ENGINE */
}
@@ -139,6 +142,7 @@ static struct of_device_id mpc85xx_ids[] = {
{ .type = "soc", },
{ .compatible = "soc", },
{ .type = "qe", },
+ { .compatible = "fsl,qe", },
{},
};
@@ -176,10 +180,12 @@ static void __init mpc85xx_mds_pic_init(void)
mpic_init(mpic);
#ifdef CONFIG_QUICC_ENGINE
- np = of_find_node_by_type(NULL, "qeic");
- if (!np)
- return;
-
+ np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic");
+ if (!np) {
+ np = of_find_node_by_type(NULL, "qeic");
+ if (!np)
+ return;
+ }
qe_ic_init(np, 0, qe_ic_cascade_muxed_mpic, NULL);
of_node_put(np);
#endif /* CONFIG_QUICC_ENGINE */
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index f2c0988..26f7d83 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/arch/powerpc/sysdev/fsl_soc.c
@@ -1276,7 +1276,10 @@ int __init fsl_spi_init(struct spi_board_info *board_infos,
const u32 *sysclk;
/* SPI controller is either clocked from QE or SoC clock */
- np = of_find_node_by_type(NULL, "qe");
+ np = of_find_compatible_node(NULL, NULL, "fsl,qe");
+ if (!np)
+ np = of_find_node_by_type(NULL, "qe");
+
if (!np)
np = of_find_node_by_type(NULL, "soc");
diff --git a/arch/powerpc/sysdev/qe_lib/qe.c b/arch/powerpc/sysdev/qe_lib/qe.c
index 3925eae..5ef844d 100644
--- a/arch/powerpc/sysdev/qe_lib/qe.c
+++ b/arch/powerpc/sysdev/qe_lib/qe.c
@@ -65,17 +65,22 @@ static phys_addr_t qebase = -1;
phys_addr_t get_qe_base(void)
{
struct device_node *qe;
+ unsigned int size;
+ const void *prop;
if (qebase != -1)
return qebase;
- qe = of_find_node_by_type(NULL, "qe");
- if (qe) {
- unsigned int size;
- const void *prop = of_get_property(qe, "reg", &size);
- qebase = of_translate_address(qe, prop);
- of_node_put(qe);
- };
+ qe = of_find_compatible_node(NULL, NULL, "fsl,qe");
+ if (!qe) {
+ qe = of_find_node_by_type(NULL, "qe");
+ if (!qe)
+ return qebase;
+ }
+
+ prop = of_get_property(qe, "reg", &size);
+ qebase = of_translate_address(qe, prop);
+ of_node_put(qe);
return qebase;
}
@@ -153,16 +158,26 @@ static unsigned int brg_clk = 0;
unsigned int get_brg_clk(void)
{
struct device_node *qe;
+ unsigned int size;
+ const u32 *prop;
+
if (brg_clk)
return brg_clk;
- qe = of_find_node_by_type(NULL, "qe");
- if (qe) {
- unsigned int size;
- const u32 *prop = of_get_property(qe, "brg-frequency", &size);
- brg_clk = *prop;
- of_node_put(qe);
- };
+ qe = of_find_compatible_node(NULL, NULL, "fsl,qe");
+ if (!qe) {
+ qe = of_find_node_by_type(NULL, "qe");
+ if (!qe)
+ return brg_clk;
+ }
+
+ prop = of_get_property(qe, "brg-frequency", &size);
+ if (!prop || size != sizeof(*prop))
+ return brg_clk;
+
+ brg_clk = *prop;
+ of_node_put(qe);
+
return brg_clk;
}
@@ -322,7 +337,7 @@ static rh_info_t qe_muram_info;
static void qe_muram_init(void)
{
struct device_node *np;
- u32 address;
+ const u32 *address;
u64 size;
unsigned int flags;
@@ -335,11 +350,21 @@ static void qe_muram_init(void)
/* XXX: This is a subset of the available muram. It
* varies with the processor and the microcode patches activated.
*/
- if ((np = of_find_node_by_name(NULL, "data-only")) != NULL) {
- address = *of_get_address(np, 0, &size, &flags);
- of_node_put(np);
- rh_attach_region(&qe_muram_info, address, (int) size);
+ np = of_find_compatible_node(NULL, NULL, "fsl,qe-muram-data");
+ if (!np) {
+ np = of_find_node_by_name(NULL, "data-only");
+ if (!np) {
+ WARN_ON(1);
+ return;
+ }
}
+
+ address = of_get_address(np, 0, &size, &flags);
+ WARN_ON(!address);
+
+ of_node_put(np);
+ if (address)
+ rh_attach_region(&qe_muram_info, *address, (int)size);
}
/* This function returns an index into the MURAM area.
--
1.5.2.2
^ permalink raw reply related
* [PATCHv3 7/7] [POWERPC] Move definition of buffer descriptor to cpm.h
From: Jochen Friedrich @ 2008-01-24 15:20 UTC (permalink / raw)
To: Vitaly Bordug; +Cc: Scott Wood, linuxppc-dev list, Kernel, Linux
Buffer descriptors are used by both CPM1 and CPM2. Move the definitions
from the cpm dependent include file to common cpm.h
Signed-off-by: Jochen Friedrich <jochen@scram.de>
---
include/asm-powerpc/cpm.h | 73 ++++++++++++++++++++++++++++++++++++++++++++
include/asm-powerpc/cpm1.h | 65 ---------------------------------------
include/asm-powerpc/cpm2.h | 64 --------------------------------------
3 files changed, 73 insertions(+), 129 deletions(-)
diff --git a/include/asm-powerpc/cpm.h b/include/asm-powerpc/cpm.h
index fae83b1..77e39da 100644
--- a/include/asm-powerpc/cpm.h
+++ b/include/asm-powerpc/cpm.h
@@ -4,6 +4,79 @@
#include <linux/compiler.h>
#include <linux/types.h>
+/* Buffer descriptors used by many of the CPM protocols. */
+typedef struct cpm_buf_desc {
+ ushort cbd_sc; /* Status and Control */
+ ushort cbd_datlen; /* Data length in buffer */
+ uint cbd_bufaddr; /* Buffer address in host memory */
+} cbd_t;
+
+/* Buffer descriptor control/status used by serial
+ */
+
+#define BD_SC_EMPTY (0x8000) /* Receive is empty */
+#define BD_SC_READY (0x8000) /* Transmit is ready */
+#define BD_SC_WRAP (0x2000) /* Last buffer descriptor */
+#define BD_SC_INTRPT (0x1000) /* Interrupt on change */
+#define BD_SC_LAST (0x0800) /* Last buffer in frame */
+#define BD_SC_TC (0x0400) /* Transmit CRC */
+#define BD_SC_CM (0x0200) /* Continous mode */
+#define BD_SC_ID (0x0100) /* Rec'd too many idles */
+#define BD_SC_P (0x0100) /* xmt preamble */
+#define BD_SC_BR (0x0020) /* Break received */
+#define BD_SC_FR (0x0010) /* Framing error */
+#define BD_SC_PR (0x0008) /* Parity error */
+#define BD_SC_NAK (0x0004) /* NAK - did not respond */
+#define BD_SC_OV (0x0002) /* Overrun */
+#define BD_SC_UN (0x0002) /* Underrun */
+#define BD_SC_CD (0x0001) /* */
+#define BD_SC_CL (0x0001) /* Collision */
+
+/* Buffer descriptor control/status used by Ethernet receive.
+ * Common to SCC and FCC.
+ */
+#define BD_ENET_RX_EMPTY (0x8000)
+#define BD_ENET_RX_WRAP (0x2000)
+#define BD_ENET_RX_INTR (0x1000)
+#define BD_ENET_RX_LAST (0x0800)
+#define BD_ENET_RX_FIRST (0x0400)
+#define BD_ENET_RX_MISS (0x0100)
+#define BD_ENET_RX_BC (0x0080) /* FCC Only */
+#define BD_ENET_RX_MC (0x0040) /* FCC Only */
+#define BD_ENET_RX_LG (0x0020)
+#define BD_ENET_RX_NO (0x0010)
+#define BD_ENET_RX_SH (0x0008)
+#define BD_ENET_RX_CR (0x0004)
+#define BD_ENET_RX_OV (0x0002)
+#define BD_ENET_RX_CL (0x0001)
+#define BD_ENET_RX_STATS (0x01ff) /* All status bits */
+
+/* Buffer descriptor control/status used by Ethernet transmit.
+ * Common to SCC and FCC.
+ */
+#define BD_ENET_TX_READY (0x8000)
+#define BD_ENET_TX_PAD (0x4000)
+#define BD_ENET_TX_WRAP (0x2000)
+#define BD_ENET_TX_INTR (0x1000)
+#define BD_ENET_TX_LAST (0x0800)
+#define BD_ENET_TX_TC (0x0400)
+#define BD_ENET_TX_DEF (0x0200)
+#define BD_ENET_TX_HB (0x0100)
+#define BD_ENET_TX_LC (0x0080)
+#define BD_ENET_TX_RL (0x0040)
+#define BD_ENET_TX_RCMASK (0x003c)
+#define BD_ENET_TX_UN (0x0002)
+#define BD_ENET_TX_CSL (0x0001)
+#define BD_ENET_TX_STATS (0x03ff) /* All status bits */
+
+/* Buffer descriptor control/status used by Transparent mode SCC.
+ */
+#define BD_SCC_TX_LAST (0x0800)
+
+/* Buffer descriptor control/status used by I2C.
+ */
+#define BD_I2C_START (0x0400)
+
int cpm_muram_init(void);
unsigned long cpm_muram_alloc(unsigned long size, unsigned long align);
int cpm_muram_free(unsigned long offset);
diff --git a/include/asm-powerpc/cpm1.h b/include/asm-powerpc/cpm1.h
index 901a00b..b2ebd6a 100644
--- a/include/asm-powerpc/cpm1.h
+++ b/include/asm-powerpc/cpm1.h
@@ -91,32 +91,6 @@ extern void cpm_load_patch(cpm8xx_t *cp);
extern void cpm_reset(void);
-/* Buffer descriptors used by many of the CPM protocols.
-*/
-typedef struct cpm_buf_desc {
- ushort cbd_sc; /* Status and Control */
- ushort cbd_datlen; /* Data length in buffer */
- uint cbd_bufaddr; /* Buffer address in host memory */
-} cbd_t;
-
-#define BD_SC_EMPTY ((ushort)0x8000) /* Receive is empty */
-#define BD_SC_READY ((ushort)0x8000) /* Transmit is ready */
-#define BD_SC_WRAP ((ushort)0x2000) /* Last buffer descriptor */
-#define BD_SC_INTRPT ((ushort)0x1000) /* Interrupt on change */
-#define BD_SC_LAST ((ushort)0x0800) /* Last buffer in frame */
-#define BD_SC_TC ((ushort)0x0400) /* Transmit CRC */
-#define BD_SC_CM ((ushort)0x0200) /* Continous mode */
-#define BD_SC_ID ((ushort)0x0100) /* Rec'd too many idles */
-#define BD_SC_P ((ushort)0x0100) /* xmt preamble */
-#define BD_SC_BR ((ushort)0x0020) /* Break received */
-#define BD_SC_FR ((ushort)0x0010) /* Framing error */
-#define BD_SC_PR ((ushort)0x0008) /* Parity error */
-#define BD_SC_NAK ((ushort)0x0004) /* NAK - did not respond */
-#define BD_SC_OV ((ushort)0x0002) /* Overrun */
-#define BD_SC_UN ((ushort)0x0002) /* Underrun */
-#define BD_SC_CD ((ushort)0x0001) /* ?? */
-#define BD_SC_CL ((ushort)0x0001) /* Collision */
-
/* Parameter RAM offsets.
*/
#define PROFF_SCC1 ((uint)0x0000)
@@ -446,41 +420,6 @@ typedef struct scc_enet {
#define SCC_PSMR_NIB22 ((ushort)0x000a) /* Start frame search */
#define SCC_PSMR_FDE ((ushort)0x0001) /* Full duplex enable */
-/* Buffer descriptor control/status used by Ethernet receive.
-*/
-#define BD_ENET_RX_EMPTY ((ushort)0x8000)
-#define BD_ENET_RX_WRAP ((ushort)0x2000)
-#define BD_ENET_RX_INTR ((ushort)0x1000)
-#define BD_ENET_RX_LAST ((ushort)0x0800)
-#define BD_ENET_RX_FIRST ((ushort)0x0400)
-#define BD_ENET_RX_MISS ((ushort)0x0100)
-#define BD_ENET_RX_LG ((ushort)0x0020)
-#define BD_ENET_RX_NO ((ushort)0x0010)
-#define BD_ENET_RX_SH ((ushort)0x0008)
-#define BD_ENET_RX_CR ((ushort)0x0004)
-#define BD_ENET_RX_OV ((ushort)0x0002)
-#define BD_ENET_RX_CL ((ushort)0x0001)
-#define BD_ENET_RX_BC ((ushort)0x0080) /* DA is Broadcast */
-#define BD_ENET_RX_MC ((ushort)0x0040) /* DA is Multicast */
-#define BD_ENET_RX_STATS ((ushort)0x013f) /* All status bits */
-
-/* Buffer descriptor control/status used by Ethernet transmit.
-*/
-#define BD_ENET_TX_READY ((ushort)0x8000)
-#define BD_ENET_TX_PAD ((ushort)0x4000)
-#define BD_ENET_TX_WRAP ((ushort)0x2000)
-#define BD_ENET_TX_INTR ((ushort)0x1000)
-#define BD_ENET_TX_LAST ((ushort)0x0800)
-#define BD_ENET_TX_TC ((ushort)0x0400)
-#define BD_ENET_TX_DEF ((ushort)0x0200)
-#define BD_ENET_TX_HB ((ushort)0x0100)
-#define BD_ENET_TX_LC ((ushort)0x0080)
-#define BD_ENET_TX_RL ((ushort)0x0040)
-#define BD_ENET_TX_RCMASK ((ushort)0x003c)
-#define BD_ENET_TX_UN ((ushort)0x0002)
-#define BD_ENET_TX_CSL ((ushort)0x0001)
-#define BD_ENET_TX_STATS ((ushort)0x03ff) /* All status bits */
-
/* SCC as UART
*/
typedef struct scc_uart {
@@ -549,8 +488,6 @@ typedef struct scc_trans {
uint st_cmask; /* Constant mask for CRC */
} scc_trans_t;
-#define BD_SCC_TX_LAST ((ushort)0x0800)
-
/* IIC parameter RAM.
*/
typedef struct iic {
@@ -574,8 +511,6 @@ typedef struct iic {
char res2[2]; /* Reserved */
} iic_t;
-#define BD_IIC_START ((ushort)0x0400)
-
/* SPI parameter RAM.
*/
typedef struct spi {
diff --git a/include/asm-powerpc/cpm2.h b/include/asm-powerpc/cpm2.h
index f1112c1..b93a53e 100644
--- a/include/asm-powerpc/cpm2.h
+++ b/include/asm-powerpc/cpm2.h
@@ -132,29 +132,6 @@ extern void cpm_setbrg(uint brg, uint rate);
extern void cpm2_fastbrg(uint brg, uint rate, int div16);
extern void cpm2_reset(void);
-
-/* Buffer descriptors used by many of the CPM protocols.
-*/
-typedef struct cpm_buf_desc {
- ushort cbd_sc; /* Status and Control */
- ushort cbd_datlen; /* Data length in buffer */
- uint cbd_bufaddr; /* Buffer address in host memory */
-} cbd_t;
-
-#define BD_SC_EMPTY ((ushort)0x8000) /* Receive is empty */
-#define BD_SC_READY ((ushort)0x8000) /* Transmit is ready */
-#define BD_SC_WRAP ((ushort)0x2000) /* Last buffer descriptor */
-#define BD_SC_INTRPT ((ushort)0x1000) /* Interrupt on change */
-#define BD_SC_LAST ((ushort)0x0800) /* Last buffer in frame */
-#define BD_SC_CM ((ushort)0x0200) /* Continous mode */
-#define BD_SC_ID ((ushort)0x0100) /* Rec'd too many idles */
-#define BD_SC_P ((ushort)0x0100) /* xmt preamble */
-#define BD_SC_BR ((ushort)0x0020) /* Break received */
-#define BD_SC_FR ((ushort)0x0010) /* Framing error */
-#define BD_SC_PR ((ushort)0x0008) /* Parity error */
-#define BD_SC_OV ((ushort)0x0002) /* Overrun */
-#define BD_SC_CD ((ushort)0x0001) /* ?? */
-
/* Function code bits, usually generic to devices.
*/
#define CPMFCR_GBL ((u_char)0x20) /* Set memory snooping */
@@ -456,43 +433,6 @@ typedef struct scc_enet {
#define SCC_PSMR_NIB22 ((ushort)0x000a) /* Start frame search */
#define SCC_PSMR_FDE ((ushort)0x0001) /* Full duplex enable */
-/* Buffer descriptor control/status used by Ethernet receive.
- * Common to SCC and FCC.
- */
-#define BD_ENET_RX_EMPTY ((ushort)0x8000)
-#define BD_ENET_RX_WRAP ((ushort)0x2000)
-#define BD_ENET_RX_INTR ((ushort)0x1000)
-#define BD_ENET_RX_LAST ((ushort)0x0800)
-#define BD_ENET_RX_FIRST ((ushort)0x0400)
-#define BD_ENET_RX_MISS ((ushort)0x0100)
-#define BD_ENET_RX_BC ((ushort)0x0080) /* FCC Only */
-#define BD_ENET_RX_MC ((ushort)0x0040) /* FCC Only */
-#define BD_ENET_RX_LG ((ushort)0x0020)
-#define BD_ENET_RX_NO ((ushort)0x0010)
-#define BD_ENET_RX_SH ((ushort)0x0008)
-#define BD_ENET_RX_CR ((ushort)0x0004)
-#define BD_ENET_RX_OV ((ushort)0x0002)
-#define BD_ENET_RX_CL ((ushort)0x0001)
-#define BD_ENET_RX_STATS ((ushort)0x01ff) /* All status bits */
-
-/* Buffer descriptor control/status used by Ethernet transmit.
- * Common to SCC and FCC.
- */
-#define BD_ENET_TX_READY ((ushort)0x8000)
-#define BD_ENET_TX_PAD ((ushort)0x4000)
-#define BD_ENET_TX_WRAP ((ushort)0x2000)
-#define BD_ENET_TX_INTR ((ushort)0x1000)
-#define BD_ENET_TX_LAST ((ushort)0x0800)
-#define BD_ENET_TX_TC ((ushort)0x0400)
-#define BD_ENET_TX_DEF ((ushort)0x0200)
-#define BD_ENET_TX_HB ((ushort)0x0100)
-#define BD_ENET_TX_LC ((ushort)0x0080)
-#define BD_ENET_TX_RL ((ushort)0x0040)
-#define BD_ENET_TX_RCMASK ((ushort)0x003c)
-#define BD_ENET_TX_UN ((ushort)0x0002)
-#define BD_ENET_TX_CSL ((ushort)0x0001)
-#define BD_ENET_TX_STATS ((ushort)0x03ff) /* All status bits */
-
/* SCC as UART
*/
typedef struct scc_uart {
@@ -562,8 +502,6 @@ typedef struct scc_trans {
uint st_cmask; /* Constant mask for CRC */
} scc_trans_t;
-#define BD_SCC_TX_LAST ((ushort)0x0800)
-
/* How about some FCCs.....
*/
#define FCC_GFMR_DIAG_NORM ((uint)0x00000000)
@@ -769,8 +707,6 @@ typedef struct spi {
#define SPI_EB ((u_char)0x10) /* big endian byte order */
-#define BD_IIC_START ((ushort)0x0400)
-
/* IDMA parameter RAM
*/
typedef struct idma {
--
1.5.3.8
^ permalink raw reply related
* [PATCHv3 6/7] [POWERPC] Rename commproc to cpm1 and cpm2_common.c to cpm2.c
From: Jochen Friedrich @ 2008-01-24 15:19 UTC (permalink / raw)
To: Vitaly Bordug; +Cc: Scott Wood, linuxppc-dev list, Kernel, Linux
Rename commproc.[ch] to cpm1.[ch] to be more consistent with cpm2. Also
rename cpm2_common.c to cpm2.c as suggested by Scott Wood. Adjust the
includes accordingly.
Signed-off-by: Jochen Friedrich <jochen@scram.de>
---
arch/powerpc/platforms/8xx/ep88xc.c | 1 +
arch/powerpc/platforms/8xx/mpc86xads_setup.c | 2 +-
arch/powerpc/platforms/8xx/mpc885ads_setup.c | 2 +-
arch/powerpc/sysdev/Makefile | 4 ++--
arch/powerpc/sysdev/{commproc.c => cpm1.c} | 4 ++--
arch/powerpc/sysdev/{cpm2_common.c => cpm2.c} | 3 +--
arch/powerpc/sysdev/micropatch.c | 2 +-
arch/ppc/8260_io/enet.c | 2 +-
arch/ppc/8xx_io/commproc.c | 2 +-
arch/ppc/8xx_io/enet.c | 6 +++---
arch/ppc/8xx_io/fec.c | 2 +-
arch/ppc/8xx_io/micropatch.c | 2 +-
arch/ppc/boot/simple/iic.c | 2 +-
arch/ppc/boot/simple/m8xx_tty.c | 2 +-
arch/ppc/kernel/ppc_ksyms.c | 2 +-
arch/ppc/platforms/mpc866ads_setup.c | 2 +-
arch/ppc/platforms/mpc885ads_setup.c | 2 +-
arch/ppc/syslib/mpc8xx_devices.c | 2 +-
arch/ppc/xmon/start_8xx.c | 2 +-
drivers/net/fec.c | 8 --------
drivers/net/fec.h | 2 +-
drivers/net/fec_8xx/fec_8xx-netta.c | 2 +-
drivers/net/fec_8xx/fec_main.c | 2 +-
drivers/net/fec_8xx/fec_mii.c | 2 +-
drivers/net/fs_enet/fs_enet.h | 2 +-
drivers/net/fs_enet/mac-fec.c | 2 +-
drivers/net/fs_enet/mac-scc.c | 2 +-
drivers/serial/68360serial.c | 2 +-
drivers/serial/cpm_uart/cpm_uart_cpm1.h | 2 +-
include/asm-powerpc/{commproc.h => cpm1.h} | 8 ++++----
include/asm-ppc/{commproc.h => cpm1.h} | 8 ++++----
31 files changed, 40 insertions(+), 48 deletions(-)
rename arch/powerpc/sysdev/{commproc.c => cpm1.c} (99%)
rename arch/powerpc/sysdev/{cpm2_common.c => cpm2.c} (99%)
rename include/asm-powerpc/{commproc.h => cpm1.h} (99%)
rename include/asm-ppc/{commproc.h => cpm1.h} (99%)
diff --git a/arch/powerpc/platforms/8xx/ep88xc.c b/arch/powerpc/platforms/8xx/ep88xc.c
index 4897eda..a8dffa0 100644
--- a/arch/powerpc/platforms/8xx/ep88xc.c
+++ b/arch/powerpc/platforms/8xx/ep88xc.c
@@ -16,6 +16,7 @@
#include <asm/io.h>
#include <asm/udbg.h>
#include <asm/commproc.h>
+#include <asm/cpm1.h>
#include "mpc8xx.h"
diff --git a/arch/powerpc/platforms/8xx/mpc86xads_setup.c b/arch/powerpc/platforms/8xx/mpc86xads_setup.c
index c0dda53..c028a5b 100644
--- a/arch/powerpc/platforms/8xx/mpc86xads_setup.c
+++ b/arch/powerpc/platforms/8xx/mpc86xads_setup.c
@@ -22,7 +22,7 @@
#include <asm/system.h>
#include <asm/time.h>
#include <asm/8xx_immap.h>
-#include <asm/commproc.h>
+#include <asm/cpm1.h>
#include <asm/fs_pd.h>
#include <asm/udbg.h>
diff --git a/arch/powerpc/platforms/8xx/mpc885ads_setup.c b/arch/powerpc/platforms/8xx/mpc885ads_setup.c
index 3be115e..6e7ded0 100644
--- a/arch/powerpc/platforms/8xx/mpc885ads_setup.c
+++ b/arch/powerpc/platforms/8xx/mpc885ads_setup.c
@@ -36,7 +36,7 @@
#include <asm/time.h>
#include <asm/mpc8xx.h>
#include <asm/8xx_immap.h>
-#include <asm/commproc.h>
+#include <asm/cpm1.h>
#include <asm/fs_pd.h>
#include <asm/udbg.h>
diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile
index f17e7b8..928d75b 100644
--- a/arch/powerpc/sysdev/Makefile
+++ b/arch/powerpc/sysdev/Makefile
@@ -36,8 +36,8 @@ endif
# Temporary hack until we have migrated to asm-powerpc
ifeq ($(ARCH),powerpc)
obj-$(CONFIG_CPM) += cpm_common.o
-obj-$(CONFIG_CPM2) += cpm2_common.o cpm2_pic.o
+obj-$(CONFIG_CPM2) += cpm2.o cpm2_pic.o
obj-$(CONFIG_PPC_DCR) += dcr.o
-obj-$(CONFIG_8xx) += mpc8xx_pic.o commproc.o
+obj-$(CONFIG_8xx) += mpc8xx_pic.o cpm1.o
obj-$(CONFIG_UCODE_PATCH) += micropatch.o
endif
diff --git a/arch/powerpc/sysdev/commproc.c b/arch/powerpc/sysdev/cpm1.c
similarity index 99%
rename from arch/powerpc/sysdev/commproc.c
rename to arch/powerpc/sysdev/cpm1.c
index ef82587..df8bd2b 100644
--- a/arch/powerpc/sysdev/commproc.c
+++ b/arch/powerpc/sysdev/cpm1.c
@@ -33,7 +33,7 @@
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/8xx_immap.h>
-#include <asm/commproc.h>
+#include <asm/cpm1.h>
#include <asm/io.h>
#include <asm/tlbflush.h>
#include <asm/rheap.h>
@@ -290,7 +290,7 @@ cpm_setbrg(uint brg, uint rate)
out_be32(bp, (((BRG_UART_CLK / rate) - 1) << 1) | CPM_BRG_EN);
else
out_be32(bp, (((BRG_UART_CLK_DIV16 / rate) - 1) << 1) |
- CPM_BRG_EN | CPM_BRG_DIV16);
+ CPM_BRG_EN | CPM_BRG_DIV16);
}
#ifndef CONFIG_PPC_CPM_NEW_BINDING
diff --git a/arch/powerpc/sysdev/cpm2_common.c b/arch/powerpc/sysdev/cpm2.c
similarity index 99%
rename from arch/powerpc/sysdev/cpm2_common.c
rename to arch/powerpc/sysdev/cpm2.c
index f7188e2..7be7112 100644
--- a/arch/powerpc/sysdev/cpm2_common.c
+++ b/arch/powerpc/sysdev/cpm2.c
@@ -153,8 +153,7 @@ cpm2_fastbrg(uint brg, uint rate, int div16)
if (brg < 4) {
bp = cpm2_map_size(im_brgc1, 16);
- }
- else {
+ } else {
bp = cpm2_map_size(im_brgc5, 16);
brg -= 4;
}
diff --git a/arch/powerpc/sysdev/micropatch.c b/arch/powerpc/sysdev/micropatch.c
index 712b10a..d8d6028 100644
--- a/arch/powerpc/sysdev/micropatch.c
+++ b/arch/powerpc/sysdev/micropatch.c
@@ -16,7 +16,7 @@
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/8xx_immap.h>
-#include <asm/commproc.h>
+#include <asm/cpm1.h>
/*
* I2C/SPI relocation patch arrays.
diff --git a/arch/ppc/8260_io/enet.c b/arch/ppc/8260_io/enet.c
index 615b658..3ea4db2 100644
--- a/arch/ppc/8260_io/enet.c
+++ b/arch/ppc/8260_io/enet.c
@@ -10,7 +10,7 @@
* This version of the driver is somewhat selectable for the different
* processor/board combinations. It works for the boards I know about
* now, and should be easily modified to include others. Some of the
- * configuration information is contained in <asm/commproc.h> and the
+ * configuration information is contained in <asm/cpm1.h> and the
* remainder is here.
*
* Buffer descriptors are kept in the CPM dual port RAM, and the frame
diff --git a/arch/ppc/8xx_io/commproc.c b/arch/ppc/8xx_io/commproc.c
index 3f93af8..9d656de 100644
--- a/arch/ppc/8xx_io/commproc.c
+++ b/arch/ppc/8xx_io/commproc.c
@@ -34,7 +34,7 @@
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/8xx_immap.h>
-#include <asm/commproc.h>
+#include <asm/cpm1.h>
#include <asm/io.h>
#include <asm/tlbflush.h>
#include <asm/rheap.h>
diff --git a/arch/ppc/8xx_io/enet.c b/arch/ppc/8xx_io/enet.c
index eace3bc..c6d047a 100644
--- a/arch/ppc/8xx_io/enet.c
+++ b/arch/ppc/8xx_io/enet.c
@@ -8,7 +8,7 @@
* This version of the driver is somewhat selectable for the different
* processor/board combinations. It works for the boards I know about
* now, and should be easily modified to include others. Some of the
- * configuration information is contained in <asm/commproc.h> and the
+ * configuration information is contained in <asm/cpm1.h> and the
* remainder is here.
*
* Buffer descriptors are kept in the CPM dual port RAM, and the frame
@@ -43,7 +43,7 @@
#include <asm/pgtable.h>
#include <asm/mpc8xx.h>
#include <asm/uaccess.h>
-#include <asm/commproc.h>
+#include <asm/cpm1.h>
#include <asm/cacheflush.h>
/*
@@ -80,7 +80,7 @@
* programming documents for details unique to your board.
*
* For the TQM8xx(L) modules, there is no control register interface.
- * All functions are directly controlled using I/O pins. See <asm/commproc.h>.
+ * All functions are directly controlled using I/O pins. See <asm/cpm1.h>.
*/
/* The transmitter timeout
diff --git a/arch/ppc/8xx_io/fec.c b/arch/ppc/8xx_io/fec.c
index 0288279..11b0aa6 100644
--- a/arch/ppc/8xx_io/fec.c
+++ b/arch/ppc/8xx_io/fec.c
@@ -53,7 +53,7 @@
#include <asm/mpc8xx.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
-#include <asm/commproc.h>
+#include <asm/cpm1.h>
#ifdef CONFIG_USE_MDIO
/* Forward declarations of some structures to support different PHYs
diff --git a/arch/ppc/8xx_io/micropatch.c b/arch/ppc/8xx_io/micropatch.c
index cfad46b..9a5d95d 100644
--- a/arch/ppc/8xx_io/micropatch.c
+++ b/arch/ppc/8xx_io/micropatch.c
@@ -16,7 +16,7 @@
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/8xx_immap.h>
-#include <asm/commproc.h>
+#include <asm/cpm1.h>
/*
* I2C/SPI relocation patch arrays.
diff --git a/arch/ppc/boot/simple/iic.c b/arch/ppc/boot/simple/iic.c
index e4efd83..5e91489 100644
--- a/arch/ppc/boot/simple/iic.c
+++ b/arch/ppc/boot/simple/iic.c
@@ -5,7 +5,7 @@
#include <linux/types.h>
#include <asm/uaccess.h>
#include <asm/mpc8xx.h>
-#include <asm/commproc.h>
+#include <asm/cpm1.h>
/* IIC functions.
diff --git a/arch/ppc/boot/simple/m8xx_tty.c b/arch/ppc/boot/simple/m8xx_tty.c
index ea615d8..f28924e 100644
--- a/arch/ppc/boot/simple/m8xx_tty.c
+++ b/arch/ppc/boot/simple/m8xx_tty.c
@@ -11,7 +11,7 @@
#include <linux/types.h>
#include <asm/uaccess.h>
#include <asm/mpc8xx.h>
-#include <asm/commproc.h>
+#include <asm/cpm1.h>
#ifdef CONFIG_MBX
#define MBX_CSR1 ((volatile u_char *)0xfa100000)
diff --git a/arch/ppc/kernel/ppc_ksyms.c b/arch/ppc/kernel/ppc_ksyms.c
index 22494ec..0d53dc3 100644
--- a/arch/ppc/kernel/ppc_ksyms.c
+++ b/arch/ppc/kernel/ppc_ksyms.c
@@ -45,7 +45,7 @@
#include <asm/dcr.h>
#ifdef CONFIG_8xx
-#include <asm/commproc.h>
+#include <asm/cpm1.h>
#endif
extern void transfer_to_handler(void);
diff --git a/arch/ppc/platforms/mpc866ads_setup.c b/arch/ppc/platforms/mpc866ads_setup.c
index bf72204..62370f4 100644
--- a/arch/ppc/platforms/mpc866ads_setup.c
+++ b/arch/ppc/platforms/mpc866ads_setup.c
@@ -32,7 +32,7 @@
#include <asm/time.h>
#include <asm/ppcboot.h>
#include <asm/8xx_immap.h>
-#include <asm/commproc.h>
+#include <asm/cpm1.h>
#include <asm/ppc_sys.h>
#include <asm/mpc8xx.h>
diff --git a/arch/ppc/platforms/mpc885ads_setup.c b/arch/ppc/platforms/mpc885ads_setup.c
index 87deaef..ba06cc0 100644
--- a/arch/ppc/platforms/mpc885ads_setup.c
+++ b/arch/ppc/platforms/mpc885ads_setup.c
@@ -31,7 +31,7 @@
#include <asm/time.h>
#include <asm/ppcboot.h>
#include <asm/8xx_immap.h>
-#include <asm/commproc.h>
+#include <asm/cpm1.h>
#include <asm/ppc_sys.h>
extern unsigned char __res[];
diff --git a/arch/ppc/syslib/mpc8xx_devices.c b/arch/ppc/syslib/mpc8xx_devices.c
index c05ac87..80804ee 100644
--- a/arch/ppc/syslib/mpc8xx_devices.c
+++ b/arch/ppc/syslib/mpc8xx_devices.c
@@ -16,7 +16,7 @@
#include <linux/device.h>
#include <linux/serial_8250.h>
#include <linux/mii.h>
-#include <asm/commproc.h>
+#include <asm/cpm1.h>
#include <asm/mpc8xx.h>
#include <asm/irq.h>
#include <asm/ppc_sys.h>
diff --git a/arch/ppc/xmon/start_8xx.c b/arch/ppc/xmon/start_8xx.c
index a48bd59..3097406 100644
--- a/arch/ppc/xmon/start_8xx.c
+++ b/arch/ppc/xmon/start_8xx.c
@@ -14,7 +14,7 @@
#include <linux/kernel.h>
#include <asm/8xx_immap.h>
#include <asm/mpc8xx.h>
-#include <asm/commproc.h>
+#include <asm/cpm1.h>
extern void xmon_printf(const char *fmt, ...);
extern int xmon_8xx_write(char *str, int nb);
diff --git a/drivers/net/fec.c b/drivers/net/fec.c
index 0fbf1bb..7727cf5 100644
--- a/drivers/net/fec.c
+++ b/drivers/net/fec.c
@@ -49,17 +49,9 @@
#include <asm/pgtable.h>
#include <asm/cacheflush.h>
-#if defined(CONFIG_M523x) || defined(CONFIG_M527x) || \
- defined(CONFIG_M5272) || defined(CONFIG_M528x) || \
- defined(CONFIG_M520x) || defined(CONFIG_M532x)
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
#include "fec.h"
-#else
-#include <asm/8xx_immap.h>
-#include <asm/mpc8xx.h>
-#include "commproc.h"
-#endif
#if defined(CONFIG_FEC2)
#define FEC_MAX_PORTS 2
diff --git a/drivers/net/fec.h b/drivers/net/fec.h
index 1d42160..bcff463 100644
--- a/drivers/net/fec.h
+++ b/drivers/net/fec.h
@@ -111,7 +111,7 @@ typedef struct bufdesc {
/*
- * The following definitions courtesy of commproc.h, which where
+ * The following definitions courtesy of cpm1.h, which where
* Copyright (c) 1997 Dan Malek (dmalek@jlc.net).
*/
#define BD_SC_EMPTY ((ushort)0x8000) /* Recieve is empty */
diff --git a/drivers/net/fec_8xx/fec_8xx-netta.c b/drivers/net/fec_8xx/fec_8xx-netta.c
index e492eb8..79deee2 100644
--- a/drivers/net/fec_8xx/fec_8xx-netta.c
+++ b/drivers/net/fec_8xx/fec_8xx-netta.c
@@ -26,7 +26,7 @@
#include <asm/mpc8xx.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
-#include <asm/commproc.h>
+#include <asm/cpm1.h>
#include "fec_8xx.h"
diff --git a/drivers/net/fec_8xx/fec_main.c b/drivers/net/fec_8xx/fec_main.c
index ab9637a..ca8d2e8 100644
--- a/drivers/net/fec_8xx/fec_main.c
+++ b/drivers/net/fec_8xx/fec_main.c
@@ -35,7 +35,7 @@
#include <asm/mpc8xx.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
-#include <asm/commproc.h>
+#include <asm/cpm1.h>
#include "fec_8xx.h"
diff --git a/drivers/net/fec_8xx/fec_mii.c b/drivers/net/fec_8xx/fec_mii.c
index e8e10a0..3b6ca29 100644
--- a/drivers/net/fec_8xx/fec_mii.c
+++ b/drivers/net/fec_8xx/fec_mii.c
@@ -34,7 +34,7 @@
#include <asm/mpc8xx.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
-#include <asm/commproc.h>
+#include <asm/cpm1.h>
/*************************************************/
diff --git a/drivers/net/fs_enet/fs_enet.h b/drivers/net/fs_enet/fs_enet.h
index c675e29..e05389c 100644
--- a/drivers/net/fs_enet/fs_enet.h
+++ b/drivers/net/fs_enet/fs_enet.h
@@ -12,7 +12,7 @@
#include <asm/fs_pd.h>
#ifdef CONFIG_CPM1
-#include <asm/commproc.h>
+#include <asm/cpm1.h>
struct fec_info {
fec_t __iomem *fecp;
diff --git a/drivers/net/fs_enet/mac-fec.c b/drivers/net/fs_enet/mac-fec.c
index c1fee48..8a311d1 100644
--- a/drivers/net/fs_enet/mac-fec.c
+++ b/drivers/net/fs_enet/mac-fec.c
@@ -40,7 +40,7 @@
#include <asm/8xx_immap.h>
#include <asm/pgtable.h>
#include <asm/mpc8xx.h>
-#include <asm/commproc.h>
+#include <asm/cpm1.h>
#endif
#ifdef CONFIG_PPC_CPM_NEW_BINDING
diff --git a/drivers/net/fs_enet/mac-scc.c b/drivers/net/fs_enet/mac-scc.c
index fe3d8a6..d7ca319 100644
--- a/drivers/net/fs_enet/mac-scc.c
+++ b/drivers/net/fs_enet/mac-scc.c
@@ -40,7 +40,7 @@
#include <asm/8xx_immap.h>
#include <asm/pgtable.h>
#include <asm/mpc8xx.h>
-#include <asm/commproc.h>
+#include <asm/cpm1.h>
#endif
#ifdef CONFIG_PPC_CPM_NEW_BINDING
diff --git a/drivers/serial/68360serial.c b/drivers/serial/68360serial.c
index 2aa6bfe..2969ebc 100644
--- a/drivers/serial/68360serial.c
+++ b/drivers/serial/68360serial.c
@@ -39,7 +39,7 @@
#include <linux/delay.h>
#include <asm/irq.h>
#include <asm/m68360.h>
-#include <asm/commproc.h>
+#include <asm/cpm1.h>
#ifdef CONFIG_KGDB
diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm1.h b/drivers/serial/cpm_uart/cpm_uart_cpm1.h
index 9b5465f..ddf46d3 100644
--- a/drivers/serial/cpm_uart/cpm_uart_cpm1.h
+++ b/drivers/serial/cpm_uart/cpm_uart_cpm1.h
@@ -10,7 +10,7 @@
#ifndef CPM_UART_CPM1_H
#define CPM_UART_CPM1_H
-#include <asm/commproc.h>
+#include <asm/cpm1.h>
/* defines for IRQs */
#ifndef CONFIG_PPC_CPM_NEW_BINDING
diff --git a/include/asm-powerpc/commproc.h b/include/asm-powerpc/cpm1.h
similarity index 99%
rename from include/asm-powerpc/commproc.h
rename to include/asm-powerpc/cpm1.h
index ec87b8f..901a00b 100644
--- a/include/asm-powerpc/commproc.h
+++ b/include/asm-powerpc/cpm1.h
@@ -14,8 +14,8 @@
* IDMA1 space. The remaining DP RAM is available for buffer descriptors
* or other use.
*/
-#ifndef __CPM_8XX__
-#define __CPM_8XX__
+#ifndef __CPM1__
+#define __CPM1__
#include <asm/8xx_immap.h>
#include <asm/ptrace.h>
@@ -82,7 +82,7 @@ extern int cpm_dpfree(unsigned long offset);
extern unsigned long cpm_dpalloc_fixed(unsigned long offset, uint size, uint align);
extern void cpm_dpdump(void);
extern void *cpm_dpram_addr(unsigned long offset);
-extern uint cpm_dpram_phys(u8* addr);
+extern uint cpm_dpram_phys(u8 *addr);
#endif
extern void cpm_setbrg(uint brg, uint rate);
@@ -747,4 +747,4 @@ enum cpm_clk {
int cpm1_clk_setup(enum cpm_clk_target target, int clock, int mode);
-#endif /* __CPM_8XX__ */
+#endif /* __CPM1__ */
diff --git a/include/asm-ppc/commproc.h b/include/asm-ppc/cpm1.h
similarity index 99%
rename from include/asm-ppc/commproc.h
rename to include/asm-ppc/cpm1.h
index 5418d6d..03035ac 100644
--- a/include/asm-ppc/commproc.h
+++ b/include/asm-ppc/cpm1.h
@@ -14,8 +14,8 @@
* IDMA1 space. The remaining DP RAM is available for buffer descriptors
* or other use.
*/
-#ifndef __CPM_8XX__
-#define __CPM_8XX__
+#ifndef __CPM1__
+#define __CPM1__
#include <asm/8xx_immap.h>
#include <asm/ptrace.h>
@@ -72,7 +72,7 @@ extern int cpm_dpfree(unsigned long offset);
extern unsigned long cpm_dpalloc_fixed(unsigned long offset, uint size, uint align);
extern void cpm_dpdump(void);
extern void *cpm_dpram_addr(unsigned long offset);
-extern uint cpm_dpram_phys(u8* addr);
+extern uint cpm_dpram_phys(u8 *addr);
extern void cpm_setbrg(uint brg, uint rate);
extern void cpm_load_patch(volatile immap_t *immr);
@@ -685,4 +685,4 @@ typedef struct risc_timer_pram {
extern void cpm_install_handler(int vec, void (*handler)(void *), void *dev_id);
extern void cpm_free_handler(int vec);
-#endif /* __CPM_8XX__ */
+#endif /* __CPM1__ */
--
1.5.3.8
^ permalink raw reply related
* [PATCHv3 5/7] [POWERPC] Get rid of conditional includes of board specific setup
From: Jochen Friedrich @ 2008-01-24 15:19 UTC (permalink / raw)
To: Vitaly Bordug; +Cc: Scott Wood, linuxppc-dev list, Kernel, Linux
Directly include mpc885ads.h from mpc885ads_setup.c. Now we can get rid
of the arch dependent includes in mpc8xx.h.
Signed-off-by: Jochen Friedrich <jochen@scram.de>
---
arch/powerpc/platforms/8xx/m8xx_setup.c | 3 +--
arch/powerpc/platforms/8xx/mpc885ads_setup.c | 1 +
include/asm-powerpc/mpc8xx.h | 20 --------------------
3 files changed, 2 insertions(+), 22 deletions(-)
diff --git a/arch/powerpc/platforms/8xx/m8xx_setup.c b/arch/powerpc/platforms/8xx/m8xx_setup.c
index 1867a07..184f998 100644
--- a/arch/powerpc/platforms/8xx/m8xx_setup.c
+++ b/arch/powerpc/platforms/8xx/m8xx_setup.c
@@ -16,6 +16,7 @@
#include <linux/init.h>
#include <linux/time.h>
#include <linux/rtc.h>
+#include <linux/fsl_devices.h>
#include <asm/io.h>
#include <asm/mpc8xx.h>
@@ -28,9 +29,7 @@
#include "mpc8xx.h"
-#ifdef CONFIG_PCMCIA_M8XX
struct mpc8xx_pcmcia_ops m8xx_pcmcia_ops;
-#endif
extern int cpm_pic_init(void);
extern int cpm_get_irq(void);
diff --git a/arch/powerpc/platforms/8xx/mpc885ads_setup.c b/arch/powerpc/platforms/8xx/mpc885ads_setup.c
index bdceb57..3be115e 100644
--- a/arch/powerpc/platforms/8xx/mpc885ads_setup.c
+++ b/arch/powerpc/platforms/8xx/mpc885ads_setup.c
@@ -40,6 +40,7 @@
#include <asm/fs_pd.h>
#include <asm/udbg.h>
+#include "mpc885ads.h"
#include "mpc8xx.h"
static u32 __iomem *bcsr, *bcsr5;
diff --git a/include/asm-powerpc/mpc8xx.h b/include/asm-powerpc/mpc8xx.h
index 2be014b..98f3c4f 100644
--- a/include/asm-powerpc/mpc8xx.h
+++ b/include/asm-powerpc/mpc8xx.h
@@ -4,29 +4,9 @@
* file that has to include MPC8xx configuration, they all include
* this one and the configuration switching is done here.
*/
-#ifdef __KERNEL__
#ifndef __CONFIG_8xx_DEFS
#define __CONFIG_8xx_DEFS
-
-#ifdef CONFIG_8xx
-
-#ifdef CONFIG_FADS
-#include <platforms/fads.h>
-#endif
-
-#if defined(CONFIG_MPC86XADS)
-#include <platforms/8xx/mpc86xads.h>
-#endif
-
-#if defined(CONFIG_MPC885ADS)
-#include <platforms/8xx/mpc885ads.h>
-#endif
-
-#ifdef CONFIG_PCMCIA_M8XX
extern struct mpc8xx_pcmcia_ops m8xx_pcmcia_ops;
-#endif
-#endif /* CONFIG_8xx */
#endif /* __CONFIG_8xx_DEFS */
-#endif /* __KERNEL__ */
--
1.5.3.8
^ permalink raw reply related
* [PATCH v5 0/5] device_type/compatible cleanups
From: Anton Vorontsov @ 2008-01-24 15:18 UTC (permalink / raw)
To: linuxppc-dev
Hi all,
This is v5. It's tested on MPC8360E-RDK and MPC8568E-MDS.
Here is diffstat summary:
Documentation/powerpc/booting-without-of.txt | 26 +--
arch/powerpc/boot/dts/mpc832x_mds.dts | 11 -
arch/powerpc/boot/dts/mpc832x_rdb.dts | 11 -
arch/powerpc/boot/dts/mpc836x_mds.dts | 11 -
arch/powerpc/boot/dts/mpc836x_rdk.dts | 10 -
arch/powerpc/boot/dts/mpc8568mds.dts | 10 -
arch/powerpc/sysdev/fsl_soc.c | 191 +++++++++++++++----------
b/Documentation/powerpc/booting-without-of.txt | 11 -
b/arch/powerpc/boot/dts/mpc8313erdb.dts | 4
b/arch/powerpc/boot/dts/mpc832x_mds.dts | 9 -
b/arch/powerpc/boot/dts/mpc832x_rdb.dts | 10 -
b/arch/powerpc/boot/dts/mpc8349emitx.dts | 4
b/arch/powerpc/boot/dts/mpc8349emitxgp.dts | 4
b/arch/powerpc/boot/dts/mpc834x_mds.dts | 4
b/arch/powerpc/boot/dts/mpc836x_mds.dts | 10 -
b/arch/powerpc/boot/dts/mpc836x_rdk.dts | 1
b/arch/powerpc/boot/dts/mpc8568mds.dts | 10 -
b/arch/powerpc/kernel/legacy_serial.c | 3
b/arch/powerpc/platforms/83xx/mpc832x_mds.c | 11 -
b/arch/powerpc/platforms/83xx/mpc832x_rdb.c | 11 -
b/arch/powerpc/platforms/83xx/mpc836x_mds.c | 11 -
b/arch/powerpc/platforms/85xx/mpc85xx_mds.c | 32 ++--
b/arch/powerpc/sysdev/fsl_soc.c | 5
b/arch/powerpc/sysdev/qe_lib/qe.c | 64 +++++---
b/drivers/net/ucc_geth_mii.c | 4
b/drivers/spi/spi_mpc83xx.c | 10 -
26 files changed, 284 insertions(+), 204 deletions(-)
Changes since v4:
- Now I'm not removing device_type = "qe", because I realized that there
was a period of time (month or so?) where libfdt-enabled u-boots were
searching for it;
- new patch that prepares the code for device_type = "soc" removal
from the device trees. We can't remove it now, because of backward
compatibility. Though, MPC8360E-RDK is exception here.
Changes since v3:
- Thanks to reviewers, few glitches found and fixed;
- New conversion: device_type = "qeic" to compatible = "fsl,qe-ic";
- Documentation updated.
Changes since v2:
- SPI conversion fixed and actually tested on MPC8323E-RDB to not
break anything;
- Few more users of device_type = "qe" converted to
compatible = "fsl,qe";
- Got Ack on SPI part from David Brownell.
Changes since v1:
- Device tree lookup changes should be backward compatible with
older dtbs;
- Few of_put_node() cleanups;
- cell-index property added to spi nodes;
- cpm-muram{,-data} added as an addition to qe-muram{,-data}.
Thanks,
--
Anton Vorontsov
email: cbou@mail.ru
backup email: ya-cbou@yandex.ru
irc://irc.freenode.net/bd2
^ permalink raw reply
* [PATCHv3 4/7] [POWERPC] Remove sysdev/commproc.h
From: Jochen Friedrich @ 2008-01-24 15:18 UTC (permalink / raw)
To: Vitaly Bordug; +Cc: Scott Wood, linuxppc-dev list, Kernel, Linux
Move cpm1 specific prototypes to asm/commproc.h and mpc8xx specific
prototypes to asm/mpc8xx.h. Adjust includes accordingly. Remove now
unneeded sysdev/commproc.h.
Signed-off-by: Jochen Friedrich <jochen@scram.de>
---
arch/powerpc/platforms/8xx/ep88xc.c | 2 +-
arch/powerpc/platforms/8xx/m8xx_setup.c | 3 ++-
arch/powerpc/platforms/8xx/mpc86xads_setup.c | 4 +---
arch/powerpc/platforms/8xx/mpc885ads_setup.c | 2 +-
arch/powerpc/platforms/8xx/mpc8xx.h | 21 +++++++++++++++++++++
arch/powerpc/sysdev/commproc.c | 1 -
arch/powerpc/sysdev/commproc.h | 12 ------------
arch/powerpc/sysdev/mpc8xx_pic.c | 1 -
include/asm-powerpc/commproc.h | 2 ++
9 files changed, 28 insertions(+), 20 deletions(-)
create mode 100644 arch/powerpc/platforms/8xx/mpc8xx.h
delete mode 100644 arch/powerpc/sysdev/commproc.h
diff --git a/arch/powerpc/platforms/8xx/ep88xc.c b/arch/powerpc/platforms/8xx/ep88xc.c
index 372b1e2..4897eda 100644
--- a/arch/powerpc/platforms/8xx/ep88xc.c
+++ b/arch/powerpc/platforms/8xx/ep88xc.c
@@ -17,7 +17,7 @@
#include <asm/udbg.h>
#include <asm/commproc.h>
-#include <sysdev/commproc.h>
+#include "mpc8xx.h"
struct cpm_pin {
int port, pin, flags;
diff --git a/arch/powerpc/platforms/8xx/m8xx_setup.c b/arch/powerpc/platforms/8xx/m8xx_setup.c
index 85abd61..1867a07 100644
--- a/arch/powerpc/platforms/8xx/m8xx_setup.c
+++ b/arch/powerpc/platforms/8xx/m8xx_setup.c
@@ -25,7 +25,8 @@
#include <mm/mmu_decl.h>
#include <sysdev/mpc8xx_pic.h>
-#include <sysdev/commproc.h>
+
+#include "mpc8xx.h"
#ifdef CONFIG_PCMCIA_M8XX
struct mpc8xx_pcmcia_ops m8xx_pcmcia_ops;
diff --git a/arch/powerpc/platforms/8xx/mpc86xads_setup.c b/arch/powerpc/platforms/8xx/mpc86xads_setup.c
index 2a4a50f..c0dda53 100644
--- a/arch/powerpc/platforms/8xx/mpc86xads_setup.c
+++ b/arch/powerpc/platforms/8xx/mpc86xads_setup.c
@@ -21,15 +21,13 @@
#include <asm/machdep.h>
#include <asm/system.h>
#include <asm/time.h>
-#include <asm/mpc8xx.h>
#include <asm/8xx_immap.h>
#include <asm/commproc.h>
#include <asm/fs_pd.h>
#include <asm/udbg.h>
-#include <sysdev/commproc.h>
-
#include "mpc86xads.h"
+#include "mpc8xx.h"
struct cpm_pin {
int port, pin, flags;
diff --git a/arch/powerpc/platforms/8xx/mpc885ads_setup.c b/arch/powerpc/platforms/8xx/mpc885ads_setup.c
index 2931bae..bdceb57 100644
--- a/arch/powerpc/platforms/8xx/mpc885ads_setup.c
+++ b/arch/powerpc/platforms/8xx/mpc885ads_setup.c
@@ -40,7 +40,7 @@
#include <asm/fs_pd.h>
#include <asm/udbg.h>
-#include <sysdev/commproc.h>
+#include "mpc8xx.h"
static u32 __iomem *bcsr, *bcsr5;
diff --git a/arch/powerpc/platforms/8xx/mpc8xx.h b/arch/powerpc/platforms/8xx/mpc8xx.h
new file mode 100644
index 0000000..17fb528
--- /dev/null
+++ b/arch/powerpc/platforms/8xx/mpc8xx.h
@@ -0,0 +1,21 @@
+/*
+ * Prototypes, etc. for the Freescale MPC8xx embedded cpu chips
+ * May need to be cleaned as the port goes on ...
+ *
+ * Copyright (C) 2008 Jochen Friedrich <jochen@scram.de>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+#ifndef __MPC8xx_H
+#define __MPC8xx_H
+
+extern void mpc8xx_restart(char *cmd);
+extern void mpc8xx_calibrate_decr(void);
+extern int mpc8xx_set_rtc_time(struct rtc_time *tm);
+extern void mpc8xx_get_rtc_time(struct rtc_time *tm);
+extern void mpc8xx_pics_init(void);
+extern unsigned int mpc8xx_get_irq(void);
+
+#endif /* __MPC8xx_H */
diff --git a/arch/powerpc/sysdev/commproc.c b/arch/powerpc/sysdev/commproc.c
index 818d4b0..ef82587 100644
--- a/arch/powerpc/sysdev/commproc.c
+++ b/arch/powerpc/sysdev/commproc.c
@@ -30,7 +30,6 @@
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/module.h>
-#include <asm/mpc8xx.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/8xx_immap.h>
diff --git a/arch/powerpc/sysdev/commproc.h b/arch/powerpc/sysdev/commproc.h
deleted file mode 100644
index f481adf..0000000
--- a/arch/powerpc/sysdev/commproc.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _POWERPC_SYSDEV_COMMPROC_H
-#define _POWERPC_SYSDEV_COMMPROC_H
-
-extern void cpm_reset(void);
-extern void mpc8xx_restart(char *cmd);
-extern void mpc8xx_calibrate_decr(void);
-extern int mpc8xx_set_rtc_time(struct rtc_time *tm);
-extern void mpc8xx_get_rtc_time(struct rtc_time *tm);
-extern void mpc8xx_pics_init(void);
-extern unsigned int mpc8xx_get_irq(void);
-
-#endif
diff --git a/arch/powerpc/sysdev/mpc8xx_pic.c b/arch/powerpc/sysdev/mpc8xx_pic.c
index 7aa4ff5..0e74a4b 100644
--- a/arch/powerpc/sysdev/mpc8xx_pic.c
+++ b/arch/powerpc/sysdev/mpc8xx_pic.c
@@ -10,7 +10,6 @@
#include <asm/irq.h>
#include <asm/io.h>
#include <asm/8xx_immap.h>
-#include <asm/mpc8xx.h>
#include "mpc8xx_pic.h"
diff --git a/include/asm-powerpc/commproc.h b/include/asm-powerpc/commproc.h
index 9757521..ec87b8f 100644
--- a/include/asm-powerpc/commproc.h
+++ b/include/asm-powerpc/commproc.h
@@ -89,6 +89,8 @@ extern void cpm_setbrg(uint brg, uint rate);
extern void cpm_load_patch(cpm8xx_t *cp);
+extern void cpm_reset(void);
+
/* Buffer descriptors used by many of the CPM protocols.
*/
typedef struct cpm_buf_desc {
--
1.5.3.8
^ permalink raw reply related
* [PATCHv3 3/7] [POWERPC] Remove unneeded and misspelled prototype m8xx_calibrate_decr
From: Jochen Friedrich @ 2008-01-24 15:18 UTC (permalink / raw)
To: Vitaly Bordug; +Cc: Scott Wood, linuxppc-dev list, Kernel, Linux
m8xx_calibrate_decr seems to be a misspelled prototype for
mpc8xx_calibrate_decr. As it's not needed anyways, just remove it.
Signed-off-by: Jochen Friedrich <jochen@scram.de>
---
arch/powerpc/platforms/8xx/m8xx_setup.c | 1 -
1 files changed, 0 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/platforms/8xx/m8xx_setup.c b/arch/powerpc/platforms/8xx/m8xx_setup.c
index 1337457..85abd61 100644
--- a/arch/powerpc/platforms/8xx/m8xx_setup.c
+++ b/arch/powerpc/platforms/8xx/m8xx_setup.c
@@ -31,7 +31,6 @@
struct mpc8xx_pcmcia_ops m8xx_pcmcia_ops;
#endif
-void m8xx_calibrate_decr(void);
extern int cpm_pic_init(void);
extern int cpm_get_irq(void);
--
1.5.3.8
^ permalink raw reply related
* [PATCHv3 2/7] [POWERPC] Rename m8xx_pic_init to mpc8xx_pics_init
From: Jochen Friedrich @ 2008-01-24 15:17 UTC (permalink / raw)
To: Vitaly Bordug; +Cc: Scott Wood, linuxppc-dev list, Kernel, Linux
m8xx_pic_init calls both mpc8xx_pic_init and cpm_pic_init. Renaming the
function to use the same name space as the rest of the mpc8xx
specific funtions and to be more meaningful.
m8xx_pic_init is declared in ppc8xx_pic.h but defined nowhere in the ppc
tree. Remove it.
Signed-off-by: Jochen Friedrich <jochen@scram.de>
---
arch/powerpc/platforms/8xx/ep88xc.c | 2 +-
arch/powerpc/platforms/8xx/m8xx_setup.c | 4 ++--
arch/powerpc/platforms/8xx/mpc86xads_setup.c | 2 +-
arch/powerpc/platforms/8xx/mpc885ads_setup.c | 2 +-
arch/powerpc/sysdev/commproc.h | 2 +-
arch/ppc/syslib/ppc8xx_pic.h | 1 -
6 files changed, 6 insertions(+), 7 deletions(-)
diff --git a/arch/powerpc/platforms/8xx/ep88xc.c b/arch/powerpc/platforms/8xx/ep88xc.c
index 88afa35..372b1e2 100644
--- a/arch/powerpc/platforms/8xx/ep88xc.c
+++ b/arch/powerpc/platforms/8xx/ep88xc.c
@@ -165,7 +165,7 @@ define_machine(ep88xc) {
.name = "Embedded Planet EP88xC",
.probe = ep88xc_probe,
.setup_arch = ep88xc_setup_arch,
- .init_IRQ = m8xx_pic_init,
+ .init_IRQ = mpc8xx_pics_init,
.get_irq = mpc8xx_get_irq,
.restart = mpc8xx_restart,
.calibrate_decr = mpc8xx_calibrate_decr,
diff --git a/arch/powerpc/platforms/8xx/m8xx_setup.c b/arch/powerpc/platforms/8xx/m8xx_setup.c
index ba645c2..1337457 100644
--- a/arch/powerpc/platforms/8xx/m8xx_setup.c
+++ b/arch/powerpc/platforms/8xx/m8xx_setup.c
@@ -237,13 +237,13 @@ static void cpm_cascade(unsigned int irq, struct irq_desc *desc)
desc->chip->eoi(irq);
}
-/* Initialize the internal interrupt controller. The number of
+/* Initialize the internal interrupt controllers. The number of
* interrupts supported can vary with the processor type, and the
* 82xx family can have up to 64.
* External interrupts can be either edge or level triggered, and
* need to be initialized by the appropriate driver.
*/
-void __init m8xx_pic_init(void)
+void __init mpc8xx_pics_init(void)
{
int irq;
diff --git a/arch/powerpc/platforms/8xx/mpc86xads_setup.c b/arch/powerpc/platforms/8xx/mpc86xads_setup.c
index d7965f8..2a4a50f 100644
--- a/arch/powerpc/platforms/8xx/mpc86xads_setup.c
+++ b/arch/powerpc/platforms/8xx/mpc86xads_setup.c
@@ -138,7 +138,7 @@ define_machine(mpc86x_ads) {
.name = "MPC86x ADS",
.probe = mpc86xads_probe,
.setup_arch = mpc86xads_setup_arch,
- .init_IRQ = m8xx_pic_init,
+ .init_IRQ = mpc8xx_pics_init,
.get_irq = mpc8xx_get_irq,
.restart = mpc8xx_restart,
.calibrate_decr = mpc8xx_calibrate_decr,
diff --git a/arch/powerpc/platforms/8xx/mpc885ads_setup.c b/arch/powerpc/platforms/8xx/mpc885ads_setup.c
index 6ef8e9e..2931bae 100644
--- a/arch/powerpc/platforms/8xx/mpc885ads_setup.c
+++ b/arch/powerpc/platforms/8xx/mpc885ads_setup.c
@@ -274,7 +274,7 @@ define_machine(mpc885_ads) {
.name = "Freescale MPC885 ADS",
.probe = mpc885ads_probe,
.setup_arch = mpc885ads_setup_arch,
- .init_IRQ = m8xx_pic_init,
+ .init_IRQ = mpc8xx_pics_init,
.get_irq = mpc8xx_get_irq,
.restart = mpc8xx_restart,
.calibrate_decr = mpc8xx_calibrate_decr,
diff --git a/arch/powerpc/sysdev/commproc.h b/arch/powerpc/sysdev/commproc.h
index 9155ba4..f481adf 100644
--- a/arch/powerpc/sysdev/commproc.h
+++ b/arch/powerpc/sysdev/commproc.h
@@ -6,7 +6,7 @@ extern void mpc8xx_restart(char *cmd);
extern void mpc8xx_calibrate_decr(void);
extern int mpc8xx_set_rtc_time(struct rtc_time *tm);
extern void mpc8xx_get_rtc_time(struct rtc_time *tm);
-extern void m8xx_pic_init(void);
+extern void mpc8xx_pics_init(void);
extern unsigned int mpc8xx_get_irq(void);
#endif
diff --git a/arch/ppc/syslib/ppc8xx_pic.h b/arch/ppc/syslib/ppc8xx_pic.h
index d7d9f65..53bcd97 100644
--- a/arch/ppc/syslib/ppc8xx_pic.h
+++ b/arch/ppc/syslib/ppc8xx_pic.h
@@ -6,7 +6,6 @@
extern struct hw_interrupt_type ppc8xx_pic;
-void m8xx_pic_init(void);
void m8xx_do_IRQ(struct pt_regs *regs,
int cpu);
int m8xx_get_irq(struct pt_regs *regs);
--
1.5.3.8
^ permalink raw reply related
* [PATCHv3 1/7] [POWERPC] Remove unused m8xx_cpm_hostalloc/free/dump()
From: Jochen Friedrich @ 2008-01-24 15:16 UTC (permalink / raw)
To: Vitaly Bordug; +Cc: Scott Wood, linuxppc-dev list, Kernel, Linux
m8xx_cpm_hostalloc is still defined in commproc.c, but no users are left
in the kernel tree. m8xx_cpm_hostfree and m8xx_cpm_hostdump are only
defined in the headers. Remove this dead code.
Signed-off-by: Jochen Friedrich <jochen@scram.de>
---
arch/powerpc/sysdev/commproc.c | 37 -------------------------------------
arch/ppc/8xx_io/commproc.c | 38 --------------------------------------
include/asm-powerpc/commproc.h | 4 ----
include/asm-ppc/commproc.h | 4 ----
4 files changed, 0 insertions(+), 83 deletions(-)
diff --git a/arch/powerpc/sysdev/commproc.c b/arch/powerpc/sysdev/commproc.c
index 621bc6c..818d4b0 100644
--- a/arch/powerpc/sysdev/commproc.c
+++ b/arch/powerpc/sysdev/commproc.c
@@ -48,8 +48,6 @@
#ifndef CONFIG_PPC_CPM_NEW_BINDING
static void m8xx_cpm_dpinit(void);
#endif
-static uint host_buffer; /* One page of host buffer */
-static uint host_end; /* end + 1 */
cpm8xx_t __iomem *cpmp; /* Pointer to comm processor space */
immap_t __iomem *mpc8xx_immr;
static cpic8xx_t __iomem *cpic_reg;
@@ -268,41 +266,6 @@ out:
}
EXPORT_SYMBOL(cpm_command);
-/* We used to do this earlier, but have to postpone as long as possible
- * to ensure the kernel VM is now running.
- */
-static void
-alloc_host_memory(void)
-{
- dma_addr_t physaddr;
-
- /* Set the host page for allocation.
- */
- host_buffer = (uint)dma_alloc_coherent(NULL, PAGE_SIZE, &physaddr,
- GFP_KERNEL);
- host_end = host_buffer + PAGE_SIZE;
-}
-
-/* We also own one page of host buffer space for the allocation of
- * UART "fifos" and the like.
- */
-uint
-m8xx_cpm_hostalloc(uint size)
-{
- uint retloc;
-
- if (host_buffer == 0)
- alloc_host_memory();
-
- if ((host_buffer + size) >= host_end)
- return(0);
-
- retloc = host_buffer;
- host_buffer += size;
-
- return(retloc);
-}
-
/* Set a baud rate generator. This needs lots of work. There are
* four BRGs, any of which can be wired to any channel.
* The internal baud rate clock is the system clock divided by 16.
diff --git a/arch/ppc/8xx_io/commproc.c b/arch/ppc/8xx_io/commproc.c
index 9da880b..3f93af8 100644
--- a/arch/ppc/8xx_io/commproc.c
+++ b/arch/ppc/8xx_io/commproc.c
@@ -55,8 +55,6 @@
})
static void m8xx_cpm_dpinit(void);
-static uint host_buffer; /* One page of host buffer */
-static uint host_end; /* end + 1 */
cpm8xx_t *cpmp; /* Pointer to comm processor space */
/* CPM interrupt vector functions.
@@ -68,7 +66,6 @@ struct cpm_action {
static struct cpm_action cpm_vecs[CPMVEC_NR];
static irqreturn_t cpm_interrupt(int irq, void * dev);
static irqreturn_t cpm_error_interrupt(int irq, void *dev);
-static void alloc_host_memory(void);
/* Define a table of names to identify CPM interrupt handlers in
* /proc/interrupts.
*/
@@ -158,21 +155,6 @@ m8xx_cpm_reset(void)
cpmp = (cpm8xx_t *)commproc;
}
-/* We used to do this earlier, but have to postpone as long as possible
- * to ensure the kernel VM is now running.
- */
-static void
-alloc_host_memory(void)
-{
- dma_addr_t physaddr;
-
- /* Set the host page for allocation.
- */
- host_buffer = (uint)dma_alloc_coherent(NULL, PAGE_SIZE, &physaddr,
- GFP_KERNEL);
- host_end = host_buffer + PAGE_SIZE;
-}
-
/* This is called during init_IRQ. We used to do it above, but this
* was too early since init_IRQ was not yet called.
*/
@@ -319,26 +301,6 @@ cpm_free_handler(int cpm_vec)
cpm_vecs[cpm_vec].dev_id = NULL;
}
-/* We also own one page of host buffer space for the allocation of
- * UART "fifos" and the like.
- */
-uint
-m8xx_cpm_hostalloc(uint size)
-{
- uint retloc;
-
- if (host_buffer == 0)
- alloc_host_memory();
-
- if ((host_buffer + size) >= host_end)
- return(0);
-
- retloc = host_buffer;
- host_buffer += size;
-
- return(retloc);
-}
-
/* Set a baud rate generator. This needs lots of work. There are
* four BRGs, any of which can be wired to any channel.
* The internal baud rate clock is the system clock divided by 16.
diff --git a/include/asm-powerpc/commproc.h b/include/asm-powerpc/commproc.h
index 9e3b864..9757521 100644
--- a/include/asm-powerpc/commproc.h
+++ b/include/asm-powerpc/commproc.h
@@ -87,10 +87,6 @@ extern uint cpm_dpram_phys(u8* addr);
extern void cpm_setbrg(uint brg, uint rate);
-extern uint m8xx_cpm_hostalloc(uint size);
-extern int m8xx_cpm_hostfree(uint start);
-extern void m8xx_cpm_hostdump(void);
-
extern void cpm_load_patch(cpm8xx_t *cp);
/* Buffer descriptors used by many of the CPM protocols.
diff --git a/include/asm-ppc/commproc.h b/include/asm-ppc/commproc.h
index 462abb1..5418d6d 100644
--- a/include/asm-ppc/commproc.h
+++ b/include/asm-ppc/commproc.h
@@ -75,10 +75,6 @@ extern void *cpm_dpram_addr(unsigned long offset);
extern uint cpm_dpram_phys(u8* addr);
extern void cpm_setbrg(uint brg, uint rate);
-extern uint m8xx_cpm_hostalloc(uint size);
-extern int m8xx_cpm_hostfree(uint start);
-extern void m8xx_cpm_hostdump(void);
-
extern void cpm_load_patch(volatile immap_t *immr);
/* Buffer descriptors used by many of the CPM protocols.
--
1.5.3.8
^ permalink raw reply related
* [PATCHv3 0/7] [POWERPC] 8xx cleanups
From: Jochen Friedrich @ 2008-01-24 15:15 UTC (permalink / raw)
To: Vitaly Bordug; +Cc: Scott Wood, linuxppc-dev list, Kernel, Linux
Hi,
this is a series against paulus for-2.6.25 tree to clean up various 8xx related stuff.
The series can be pulled from git://git.bocc.de/dbox2.git cleanup.
Old patches 2+4 have been merged into Patch 2. Patch 4 has been modified to move the
prototypes into a new platforms/8xx/mpc8xx.h. Patch 5 leaves the PCMCIA bits in
asm-powerpc/mpc8xx.h as this driver needs to be fixed first (unfortunately, i don't
have an 8xx board with PCMCIA). I would suggest removing asm-powerpc/mpc8xx.h after
ARCH=ppc is gone to avoid adding #ifdefs to all shared drivers.
I also modified an option in Thunderbird so i hope whitespaces are OK now :-/
[POWERPC] Remove unused m8xx_cpm_hostalloc/free/dump()
[POWERPC] Rename m8xx_pic_init to mpc8xx_pics_init
[POWERPC] Remove unneeded and misspelled prototype m8xx_calibrate_decr
[POWERPC] Remove sysdev/commproc.h
[POWERPC] Get rid of conditional includes of board specific setup
[POWERPC] Rename commproc to cpm1 and cpm2_common.c to cpm2.c
[POWERPC] Move definition of buffer descriptor to cpm.h
Thanks,
Jochen
^ permalink raw reply
* Re: [PATCH 3/4 v4] POWERPC: Add initial iomega StorCenter board port.
From: Jon Loeliger @ 2008-01-24 15:07 UTC (permalink / raw)
To: Kumar Gala; +Cc: Stephen Rothwell, Jon Loeliger, linuxppc-dev
In-Reply-To: <3C9ED1A8-7F51-41B8-898C-45BDA3EF4548@kernel.crashing.org>
Kumar Gala wrote:
> On Jan 23, 2008, at 6:50 PM, Stephen Rothwell wrote:
>
>> You need an of_node_put(dnp) before you return.
>
> Fixed up by your friendly maintainer.
Kumar,
I meant, "I won't be sending you a patch."
Thank you!
jdl
^ permalink raw reply
* [patch v5 4/4] USB: add Cypress c67x00 OTG controller gadget driver
From: Peter Korsgaard @ 2008-01-24 14:47 UTC (permalink / raw)
To: dbrownell, linux-usb, linuxppc-dev, grant.likely
In-Reply-To: <20080124144706.041042000@sunsite.dk>
This patch adds USB gadget support for the Cypress c67x00 family of devices.
This is work in progress and not ready to be committed yet. I'm posting this
to show how it fits with the rest of the driver and to collect feedback.
The driver works good enought to use g_serial, but there are still issues
to be solved. The biggest issue is that endpoint 0 is currently handled by
the BIOS inside the c67x00, so the gadget stack never sees the data.
The BIOS also has other deficiencies, E.G. see the patching done in
c67x00_ll_susb_init().
---
drivers/usb/Kconfig | 2
drivers/usb/Makefile | 2
drivers/usb/c67x00/Kconfig | 21
drivers/usb/c67x00/Makefile | 7
drivers/usb/c67x00/c67x00-drv.c | 11
drivers/usb/c67x00/c67x00-ll-hpi.c | 201 ++++++++
drivers/usb/c67x00/c67x00-udc.c | 905 +++++++++++++++++++++++++++++++++++++
drivers/usb/c67x00/c67x00-udc.h | 50 ++
drivers/usb/c67x00/c67x00.h | 21
drivers/usb/gadget/Kconfig | 7
drivers/usb/gadget/gadget_chips.h | 8
drivers/usb/host/Kconfig | 12
12 files changed, 1232 insertions(+), 15 deletions(-)
Index: linux-2.6/drivers/usb/c67x00/c67x00-udc.c
===================================================================
--- /dev/null
+++ linux-2.6/drivers/usb/c67x00/c67x00-udc.c
@@ -0,0 +1,905 @@
+/*
+ * c67x00-udc.c: Cypress C67X00 USB device controller
+ *
+ * Copyright (C) 2006-2008 Barco N.V.
+ * Derived from the Cypress cy7c67200/300 ezusb linux driver and
+ * based on multiple device controller drivers inside the linux kernel.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA.
+ */
+
+#include <linux/device.h>
+#include <linux/usb.h>
+#include <linux/usb/c67x00.h>
+#include <linux/usb/gadget.h>
+#include <linux/usb/ch9.h>
+
+#include "c67x00.h"
+#include "c67x00-udc.h"
+
+/* Defined in DEVICE n ENDPOINT STATUS REGISTERS */
+#define OVERFLOW_FLG 0x0800 /* Receive overflow */
+#define UNDERFLOW_FLG 0x0400 /* Receive underflow */
+#define OUT_EXCEPTION_FLG 0x0200 /* OUT received when armed for IN */
+#define IN_EXCEPTION_FLG 0x0100 /* IN received when armed for OUT */
+#define STALL_FLG 0x0080 /* Stall sent */
+#define NAK_FLG 0x0040 /* NAK sent */
+#define LENGTH_EXCEPT_FLG 0x0020 /* Overflow or Underflow occured */
+#define SETUP_FLG 0x0010 /* SETUP packet received */
+#define SEQ_STAT 0x0008 /* Last Data Toggle Sequence bit sent
+ or received */
+#define TIMEOUT_FLG 0x0004 /* Last transmission timed out */
+#define ERROR_FLG 0x0002 /* CRC Err detected in last
+ reception*/
+#define ACK_FLG 0x0001 /* Last transaction ACK'D (sent
+ or received) */
+
+/* Defined in DEVICE n ENDPOINT CONTROL REGISTERS */
+#define DIR_SEL_IN 0x0004 /* Last transmission timed out */
+#define EP_ENABLE 0x0002 /* Enable Endpoint */
+
+
+
+struct c67x00_request {
+ struct usb_request req;
+ struct list_head queue;
+};
+
+
+
+struct c67x00_udc_ep {
+ struct usb_ep ep;
+ struct c67x00_udc *udc;
+
+ struct list_head queue;
+ int ep_num;
+ int is_ep_in;
+ int enable;
+ int stopped;
+ int start_io;
+};
+
+#define C67X00_MAX_NB_END_POINTS 8
+
+struct c67x00_udc {
+ spinlock_t lock;
+ struct c67x00_sie *sie;
+ struct usb_gadget gadget;
+ struct usb_gadget_driver *driver;
+ struct c67x00_udc_ep ep[C67X00_MAX_NB_END_POINTS];
+ struct work_struct io_work;
+ int config_nr;
+ /* The highest string descriptor entry
+ (used to retrieve descriptors from gadget driver) */
+ int top_str_id;
+ u16 string_desc_addr;
+};
+
+const static unsigned char get_descriptor_device[] = {
+ USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_DEVICE,
+ USB_REQ_GET_DESCRIPTOR,
+ 0x00,
+ USB_DT_DEVICE,
+ 0x00,
+ 0x00,
+ 0x12,
+ 0x00
+};
+
+const static unsigned char get_descriptor_config[] = {
+ USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_DEVICE,
+ USB_REQ_GET_DESCRIPTOR,
+ 0x00,
+ USB_DT_CONFIG,
+ 0x00,
+ 0x00,
+ 0x40,
+ 0x00
+};
+
+static unsigned char get_descriptor_string[] = {
+ USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_DEVICE,
+ USB_REQ_GET_DESCRIPTOR,
+ 0x00,
+ USB_DT_STRING,
+ 0x00,
+ 0x00,
+ 0xFF,
+ 0x00
+};
+
+#define SIEx_DEV_DESC_LOC(x) ((x) ? (CY_UDC_DESC_BASE_ADDRESS + 0x200) \
+ : CY_UDC_DESC_BASE_ADDRESS)
+#define SIEx_CONF_DESC_LOC(x) (SIEx_DEV_DESC_LOC(x) + 32)
+
+/* ------------------------------------------------------------------------- */
+/* gadget ops */
+
+static int c67x00_get_frame(struct usb_gadget *_gadget)
+{
+ printk(KERN_DEBUG "c67x00-udc : c67x00_get_frame\n");
+ return -ENODEV;
+}
+
+static int c67x00_wakeup(struct usb_gadget *_gadget)
+{
+ printk(KERN_DEBUG "c67x00-udc : c67x00_wakeup\n");
+ return -ENODEV;
+}
+
+static int c67x00_selfpowered(struct usb_gadget *_gadget,
+ int is_selfpowered)
+{
+ printk(KERN_DEBUG "c67x00-udc : c67x00_selfpowered\n");
+ return -ENODEV;
+}
+
+static int c67x00_vbus_session(struct usb_gadget *_gadget, int is_active)
+{
+ printk(KERN_DEBUG "c67x00-udc : c67x00_vbus_session\n");
+ return -ENODEV;
+}
+
+static int c67x00_pullup(struct usb_gadget *_gadget, int is_on)
+{
+ printk(KERN_DEBUG "c67x00-udc : c67x00_pullup\n");
+ return -ENODEV;
+}
+
+
+static const struct usb_gadget_ops c67x00_udc_ops = {
+ .get_frame = c67x00_get_frame,
+ .wakeup = c67x00_wakeup,
+ .set_selfpowered = c67x00_selfpowered,
+ .vbus_session = c67x00_vbus_session,
+ .pullup = c67x00_pullup
+};
+
+
+
+/*
+ * the sie and gadget_driver get probed/registered from 2 totally independant
+ * places, this datastructure binds them together
+ */
+static struct c67x00_udc controller = {
+ .gadget = {
+ .ops = &c67x00_udc_ops,
+ .name = "c67x00_udc",
+ .speed = USB_SPEED_FULL,
+ .is_dualspeed = 1,
+ .is_a_peripheral = 1,
+ .dev = {
+ .bus_id = "gadget",
+ },
+ },
+};
+
+
+/*----------------------------------------------------------------------------*/
+
+static void c67x00_udc_set_configuration(struct c67x00_sie *sie, u16 config)
+{
+ struct usb_ctrlrequest request;
+ struct c67x00_udc *udc = sie->private_data;
+
+ dev_dbg(sie_dev(sie), "set configuration %d\n", config);
+
+ request.bRequest = USB_REQ_SET_CONFIGURATION;
+ request.bRequestType = 0;
+ request.wValue = cpu_to_le16(config);
+ udc->driver->setup(&udc->gadget, &request);
+}
+
+static int c67x00_udc_parse_descriptor(struct c67x00_udc *udc,
+ struct c67x00_request *req)
+{
+ int retval = 0;
+ u8 *buf = req->req.buf;
+
+ if (req->req.length < 2)
+ return 0;
+
+ switch (buf[1]) {
+ case USB_DT_DEVICE: {
+ struct usb_device_descriptor *desc = req->req.buf;
+
+ /* Look for the highest stringIndex */
+ if (desc->iManufacturer > udc->top_str_id)
+ udc->top_str_id = desc->iManufacturer;
+ if (desc->iProduct > udc->top_str_id)
+ udc->top_str_id = desc->iProduct;
+ if (desc->iSerialNumber > udc->top_str_id)
+ udc->top_str_id = desc->iSerialNumber;
+
+ /* Write descriptor to C67x00 memory */
+ c67x00_ll_write_mem_le16(udc->sie->dev,
+ SIEx_DEV_DESC_LOC(udc->sie->sie_num),
+ req->req.buf, req->req.length);
+
+ /* Write vector address to c67x00 */
+ c67x00_ll_set_device_descriptor_location(
+ udc->sie, SIEx_DEV_DESC_LOC(udc->sie->sie_num));
+
+ retval = 1;
+ break;
+ }
+
+ case USB_DT_CONFIG: {
+ struct usb_config_descriptor *desc = req->req.buf;
+ int offset;
+ u16 length;
+
+ /* store config number to pass to the gadget driver,
+ once the c67x00 is configured */
+ udc->config_nr = desc->bConfigurationValue;
+
+ length = le16_to_cpu(desc->wTotalLength);
+
+ if (desc->iConfiguration > udc->top_str_id)
+ udc->top_str_id = desc->iConfiguration;
+
+ offset = desc->bLength;
+
+ while (offset < length) {
+ if (buf[offset + 1] == USB_DT_INTERFACE) {
+ struct usb_interface_descriptor *if_desc =
+ (struct usb_interface_descriptor *)
+ (buf + offset);
+
+ if (if_desc->iInterface > udc->top_str_id)
+ udc->top_str_id = if_desc->iInterface;
+ }
+
+ offset += buf[offset];
+ }
+
+ if ((length % 8) == 0) {
+ /* BIOS can't handle descriptors with size multiple
+ of xfer size */
+ length += 1;
+ /* desc->wTotalLength = cpu_to_le16(length); */
+ }
+
+ /* BIOS can only handle configuration 1,
+ so make sure the config nr is 1 */
+ desc->bConfigurationValue = 1;
+
+ c67x00_ll_write_mem_le16(udc->sie->dev,
+ SIEx_CONF_DESC_LOC(udc->sie->sie_num),
+ req->req.buf, length);
+
+ /* Write vector address to SW interrupt */
+ c67x00_ll_set_configuration_descriptor_location(
+ udc->sie, SIEx_CONF_DESC_LOC(udc->sie->sie_num));
+
+ /* String descriptors start behind configuration descriptor */
+ udc->string_desc_addr =
+ SIEx_CONF_DESC_LOC(udc->sie->sie_num) + length;
+
+ /* Make sure the address is even */
+ if (udc->string_desc_addr & 0x01)
+ udc->string_desc_addr++;
+
+ /* Write string descriptor vector address */
+ c67x00_ll_set_string_descriptor_location(
+ udc->sie, udc->string_desc_addr);
+
+ retval = 1;
+ break;
+ }
+
+ case USB_DT_STRING:
+ /* Write string descriptor */
+ c67x00_ll_write_mem_le16(udc->sie->dev, udc->string_desc_addr,
+ req->req.buf, req->req.length);
+
+ /* set address to end of this descriptor */
+ udc->string_desc_addr += req->req.length;
+
+ retval = 1;
+ break;
+ }
+
+ return retval;
+}
+
+/*
+ * done - retire a request; caller blocked irqs
+ */
+static void c67x00_udc_done(struct c67x00_udc_ep *ep,
+ struct c67x00_request *req, int status)
+{
+ int stopped = ep->stopped;
+
+ list_del_init(&req->queue);
+
+ if (likely(req->req.status == -EINPROGRESS))
+ req->req.status = status;
+ else
+ status = req->req.status;
+/*
+ if (status && status != -ESHUTDOWN)
+ DBG(DBG_VERBOSE, "complete %s req %p stat %d len %u/%u\n",
+ ep->ep.name, &req->req, status,
+ req->req.actual, req->req.length);
+*/
+
+ /* don't modify queue heads during completion callback */
+ ep->stopped = 1;
+ req->req.complete(&ep->ep, &req->req);
+ ep->stopped = stopped;
+}
+
+/*----------- UDC send/receive functions -------------------------------------*/
+
+static void c67x00_udc_start_io_irq(struct c67x00_udc_ep *ep)
+{
+ struct c67x00_sie *sie = ep->udc->sie;
+ struct c67x00_request *req =
+ list_entry(ep->queue.next, struct c67x00_request, queue);
+
+ if (ep->is_ep_in)
+ c67x00_ll_susb_start_send(sie, ep->ep_num,
+ req->req.buf, req->req.length);
+ else
+ c67x00_ll_susb_start_receive(sie, ep->ep_num, req->req.length);
+}
+
+static void c67x00_udc_io_work(struct work_struct *_udc)
+{
+ int i = 0;
+ struct c67x00_udc *udc =
+ container_of(_udc, struct c67x00_udc, io_work);
+
+ for (i = 0; i < C67X00_MAX_NB_END_POINTS; i++) {
+ struct c67x00_udc_ep *ep = &udc->ep[i];
+ if (ep->start_io) {
+ ep->start_io = 0;
+ c67x00_udc_start_io_irq(ep);
+ }
+ }
+}
+
+static void c67x00_udc_schedule_io_irq(struct c67x00_udc_ep *ep)
+{
+ ep->start_io = 1;
+
+ /* start work queue */
+ schedule_work(&ep->udc->io_work);
+}
+
+static void c67x00_udc_done_irq(struct c67x00_udc_ep *ep, int status)
+{
+ struct c67x00_request *req;
+ struct c67x00_sie *sie = ep->udc->sie;
+ int result;
+
+ result = c67x00_ll_susb_get_transfer_status(sie, ep->ep_num);
+ if (result < 0) {
+ dev_err(sie_dev(sie), "udc_done_irq error (%d)\n", result);
+ return;
+ }
+
+ if (unlikely(list_empty(&ep->queue)))
+ return;
+
+ req = list_entry(ep->queue.next, struct c67x00_request, queue);
+
+ req->req.actual = req->req.length - result;
+
+ if (!ep->is_ep_in && ep->ep_num != 0)
+ c67x00_ll_susb_receive(sie, ep->ep_num,
+ req->req.buf, req->req.actual);
+
+ c67x00_udc_done(ep, req, 0);
+ if (!list_empty(&ep->queue) && !ep->stopped)
+ /* restart io req */
+ c67x00_udc_schedule_io_irq(ep);
+}
+
+/* -------------------------------------------------------------------------- */
+/* endpoints */
+
+static const char *c67x00_ep_name[C67X00_MAX_NB_END_POINTS] = {
+ "ep0", "ep1out-bulk", "ep2in-bulk", "ep3", "ep4", "ep5", "ep6", "ep7"
+};
+
+
+/* -------------------------------------------------------------------------- */
+/* ep opts */
+
+/*
+ * empties entire endpoint queue
+ */
+static void c67x00_nuke_ep(struct c67x00_udc_ep *ep, int status)
+{
+ ep->stopped = 1;
+
+ while (!list_empty(&ep->queue)) {
+ struct c67x00_request *req =
+ list_entry(ep->queue.next, struct c67x00_request,
+ queue);
+ c67x00_udc_done(ep, req, status);
+ }
+}
+
+static int c67x00_ep_enable(struct usb_ep *_ep,
+ const struct usb_endpoint_descriptor *desc)
+{
+ struct c67x00_udc_ep *ep;
+ struct c67x00_sie *sie;
+ u16 maxpacket;
+
+ ep = container_of(_ep, struct c67x00_udc_ep, ep);
+ sie = ep->udc->sie;
+
+ maxpacket = le16_to_cpu(desc->wMaxPacketSize);
+
+ c67x00_ll_set_device_ep_status(sie, ep->ep_num, 0x0000);
+
+ if (desc->bEndpointAddress & USB_DIR_IN) {
+ ep->is_ep_in = 1;
+ c67x00_ll_set_ep_ctrl_reg(sie, ep->ep_num,
+ EP_ENABLE | DIR_SEL_IN);
+ c67x00_ll_set_ep_packet_size_reg(sie, ep->ep_num, maxpacket);
+ } else {
+ ep->is_ep_in = 0;
+ c67x00_ll_set_ep_ctrl_reg(sie, ep->ep_num, EP_ENABLE);
+ c67x00_ll_set_ep_packet_size_reg(sie, ep->ep_num, maxpacket);
+ }
+
+ ep->enable = 1;
+ ep->stopped = 0;
+ ep->ep.maxpacket = maxpacket;
+
+ return 0;
+}
+
+static int c67x00_ep_disable(struct usb_ep *_ep)
+{
+ unsigned long flags;
+ struct c67x00_udc_ep *ep;
+
+ ep = container_of(_ep, struct c67x00_udc_ep, ep);
+
+ dev_dbg(sie_dev(ep->udc->sie), "ep_disable %s\n", _ep->name);
+
+ spin_lock_irqsave(&ep->udc->lock, flags);
+
+ ep->enable = 0;
+ ep->stopped = 1;
+
+ c67x00_nuke_ep(ep, -ESHUTDOWN);
+
+ spin_unlock_irqrestore(&ep->udc->lock, flags);
+
+ return 0;
+}
+
+
+struct usb_request *c67x00_ep_alloc_request(struct usb_ep *_ep,
+ gfp_t gfp_flags)
+{
+ struct c67x00_request *req;
+
+ req = kzalloc(sizeof(struct c67x00_request), gfp_flags);
+ if (!req)
+ return NULL;
+
+ INIT_LIST_HEAD(&req->queue);
+ return &req->req;
+}
+
+static void c67x00_ep_free_request(struct usb_ep *_ep,
+ struct usb_request *_req)
+{
+ struct c67x00_request *req = NULL;
+ struct c67x00_udc_ep *ep;
+
+ ep = container_of(_ep, struct c67x00_udc_ep, ep);
+ dev_dbg(sie_dev(ep->udc->sie), "free_request %s\n", _ep->name);
+
+ req = container_of(_req, struct c67x00_request, req);
+
+ if (_req)
+ kfree(req);
+}
+
+static int c67x00_ep_queue(struct usb_ep *_ep, struct usb_request *_req,
+ gfp_t gfp_flags)
+{
+ struct c67x00_udc_ep *ep;
+ struct c67x00_request *req;
+ unsigned long flags;
+ int request = 0;
+ struct c67x00_udc *dev;
+
+ req = container_of(_req, struct c67x00_request, req);
+ if (unlikely
+ (!_req || !_req->complete || !_req->buf
+ || !list_empty(&req->queue))) {
+ printk(KERN_WARNING "bad params\n");
+ return -EINVAL;
+ }
+
+ ep = container_of(_ep, struct c67x00_udc_ep, ep);
+ if (unlikely(!_ep)) {
+ dev_warn(sie_dev(ep->udc->sie), "bad ep\n");
+ return -EINVAL;
+ }
+
+ dev = ep->udc;
+ if (unlikely
+ (!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN)) {
+ dev_warn(sie_dev(ep->udc->sie), "bogus device state\n");
+ return -ESHUTDOWN;
+ }
+
+ if (ep->ep_num == 0) {
+ /* The gadget driver returns the descriptors through this way */
+ if (!c67x00_udc_parse_descriptor(dev, req)) {
+ req->req.actual = req->req.length;
+ return -EINVAL;
+ } else {
+ req->req.status = 0;
+ req->req.actual = req->req.length;
+ req->req.complete(&ep->ep, &req->req);
+ return 0;
+ }
+
+ }
+
+ spin_lock_irqsave(&dev->lock, flags);
+
+ _req->status = -EINPROGRESS;
+ _req->actual = 0;
+
+ /* Start I/O queue if the list was empty */
+ if (list_empty(&ep->queue) && !ep->stopped)
+ request = 1;
+
+ /* Add the request to the queue of the endpoint */
+ list_add_tail(&req->queue, &ep->queue);
+
+ if (request)
+ c67x00_udc_schedule_io_irq(ep);
+
+ spin_unlock_irqrestore(&dev->lock, flags);
+
+ return 0;
+}
+
+
+static int c67x00_ep_dequeue(struct usb_ep *_ep, struct usb_request *_req)
+{
+ struct c67x00_udc_ep *ep;
+ struct c67x00_request *req;
+ unsigned long flags;
+
+ ep = container_of(_ep, struct c67x00_udc_ep, ep);
+ if (!_ep || ep->ep_num == 0)
+ return -EINVAL;
+
+ dev_dbg(sie_dev(ep->udc->sie), "dequeue %s\n", _ep->name);
+
+ spin_lock_irqsave(&ep->udc->lock, flags);
+
+ /* make sure it's actually queued on this endpoint */
+ list_for_each_entry(req, &ep->queue, queue) {
+ if (&req->req == _req)
+ break;
+ }
+ if (&req->req != _req) {
+ spin_unlock_irqrestore(&ep->udc->lock, flags);
+ return -EINVAL;
+ }
+
+ c67x00_udc_done(ep, req, -ECONNRESET);
+
+ spin_unlock_irqrestore(&ep->udc->lock, flags);
+ return 0;
+}
+
+
+
+static int c67x00_ep_set_halt(struct usb_ep *_ep, int value)
+{
+ printk(KERN_WARNING "c67x00-udc : ep set_halt %s\n", _ep->name);
+ return -ENODEV;
+}
+
+static void c67x00_ep_fifo_flush(struct usb_ep *_ep)
+{
+ printk(KERN_WARNING "c67x00-udc : ep fifo_flush %s\n", _ep->name);
+}
+
+
+static const struct usb_ep_ops c67x00_ep_ops = {
+ .enable = c67x00_ep_enable,
+ .disable = c67x00_ep_disable,
+
+ .alloc_request = c67x00_ep_alloc_request,
+ .free_request = c67x00_ep_free_request,
+
+ .queue = c67x00_ep_queue,
+ .dequeue = c67x00_ep_dequeue,
+
+ .set_halt = c67x00_ep_set_halt,
+ .fifo_flush = c67x00_ep_fifo_flush,
+};
+
+/* -------------------------------------------------------------------------- */
+
+void c67x00_udc_msg_received(struct c67x00_sie *sie, u16 msg)
+{
+ struct c67x00_udc *udc = sie->private_data;
+ u16 EPx_msg_mask = /*SUSB_EP0_MSG | */ SUSB_EP1_MSG
+ | SUSB_EP2_MSG
+ | SUSB_EP3_MSG
+ | SUSB_EP4_MSG
+ | SUSB_EP5_MSG
+ | SUSB_EP6_MSG
+ | SUSB_EP7_MSG;
+
+ if ((msg & EPx_msg_mask) != 0) {
+ int i, mask = 0x01;
+
+ for (i = 0; i < C67X00_MAX_NB_END_POINTS; i++, mask <<= 1)
+ if (msg & mask)
+ c67x00_udc_done_irq(&udc->ep[i], 0);
+ }
+
+ if (msg & SUSB_RST_MSG) {
+ int i;
+ dev_dbg(sie_dev(sie),
+ "udc_msg_rec (0x%04X) : SUSB_RST_MSG\n", msg);
+
+ for (i = 0; i < C67X00_MAX_NB_END_POINTS; i++) {
+ struct c67x00_udc_ep *ep = &udc->ep[i];
+ if (i != 0 && ep->enable) {
+ ep->stopped = 1;
+ c67x00_nuke_ep(ep, -ESHUTDOWN);
+ }
+ }
+ if (udc->driver && udc->driver->disconnect)
+ udc->driver->disconnect(&udc->gadget);
+ }
+
+ if (msg & SUSB_SOF_MSG) {
+ dev_dbg(sie_dev(sie),
+ "udc_msg_rec (0x%04X) : SUSB_SOF_MSG\n", msg);
+ }
+
+ if (msg & SUSB_CFG_MSG) {
+ dev_dbg(sie_dev(sie),
+ "udc_msg_rec (0x%04X) : SUSB_CFG_MSG\n", msg);
+ /* the c67x00 BIOS only supports 1 configuration,
+ so it must be configuration 1 */
+ c67x00_udc_set_configuration(sie, udc->config_nr);
+ }
+
+ if (msg & SUSB_SUS_MSG) {
+ dev_dbg(sie_dev(sie),
+ "udc_msg_rec (0x%04X) : SUSB_SUS_MSG\n", msg);
+ }
+
+ if (msg & SUSB_ID_MSG) {
+ dev_dbg(sie_dev(sie),
+ "udc_msg_rec (0x%04X) : SUSB_ID_MSG\n", msg);
+ }
+
+ if (msg & SUSB_VBUS_MSG) {
+ dev_dbg(sie_dev(sie),
+ "udc_msg_rec (0x%04X) : SUSB_VBUS_MSG\n", msg);
+ }
+}
+
+
+/*
+ * This function is called from the interrupt handler in c67x00-drv.c
+ */
+static void c67x00_udc_irq(struct c67x00_sie *sie, u16 int_status, u16 msg)
+{
+ u16 device_status;
+
+ if (msg)
+ c67x00_udc_msg_received(sie, msg);
+
+ device_status = c67x00_ll_usb_get_status(sie);
+
+ if (int_status & SOFEOP_FLG(sie->sie_num))
+ c67x00_ll_usb_clear_status(sie, SOF_EOP_IRQ_FLG);
+
+ if (int_status & RESET_FLG(sie->sie_num)) {
+ dev_info(sie_dev(sie), "sie%d : reset IRQ\n",
+ sie->sie_num);
+
+ /* Handle reset here */
+ c67x00_ll_usb_clear_status(sie, RESET_IRQ_FLG);
+ }
+
+ if (int_status & DONE_FLG(sie->sie_num))
+ dev_info(sie_dev(sie), "sie%d : done IRQ -> "
+ "device status 0x%04X\n",
+ sie->sie_num, device_status);
+}
+
+
+int usb_gadget_register_driver(struct usb_gadget_driver *driver)
+{
+ struct c67x00_udc *udc = &controller;
+ int i, retval;
+
+ if (!driver
+/* || driver->speed < USB_SPEED_FULL*/
+ || !driver->bind || !driver->setup) {
+
+ printk(KERN_ERR
+ "c67x00 : invalid gadget driver provided\n");
+ return -EINVAL;
+ }
+
+
+ spin_lock(&udc->lock);
+ if (!udc->sie || udc->driver) {
+ spin_unlock(&udc->lock);
+ return -EBUSY;
+ }
+
+ udc->driver = driver;
+ udc->gadget.dev.driver = &driver->driver;
+ udc->config_nr = 1;
+ udc->top_str_id = 0;
+ device_add(&udc->gadget.dev);
+
+ driver->driver.bus = NULL;
+
+ dev_dbg(sie_dev(udc->sie), "Binding %s to SIE%d\n",
+ driver->function, udc->sie->sie_num);
+
+ retval = driver->bind(&udc->gadget);
+ if (retval) {
+ dev_warn(sie_dev(udc->sie), "Driver bind failed\n");
+ goto error;
+ }
+
+ /* retrieve descriptors from gadget and program them in device */
+ udc->driver->setup(&udc->gadget,
+ (struct usb_ctrlrequest *)
+ get_descriptor_device);
+ udc->driver->setup(&udc->gadget,
+ (struct usb_ctrlrequest *)
+ get_descriptor_config);
+
+ for (i = 0; i <= udc->top_str_id; i++) {
+ get_descriptor_string[2] = i;
+ udc->driver->setup(&udc->gadget,
+ (struct usb_ctrlrequest *)
+ get_descriptor_string);
+ }
+
+ spin_unlock(&udc->lock);
+
+ /* enable device */
+ c67x00_ll_susb_init(udc->sie);
+
+ return 0;
+
+error :
+ udc->driver = NULL;
+ udc->gadget.dev.driver = NULL;
+ device_del(&udc->gadget.dev);
+
+ spin_unlock(&udc->lock);
+
+ return retval;
+}
+EXPORT_SYMBOL(usb_gadget_register_driver);
+
+int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
+{
+ struct c67x00_udc *udc = &controller;
+
+ printk(KERN_WARNING "c67x00-udc : usb_gadget_unregister_driver\n");
+
+ spin_lock(&udc->lock);
+ if (udc->driver != driver) {
+ spin_unlock(&udc->lock);
+ return -EINVAL;
+ }
+
+ udc->driver = NULL;
+
+ driver->unbind(&udc->gadget);
+ device_del(&udc->gadget.dev);
+
+ c67x00_ll_susb_disable(udc->sie);
+
+ spin_unlock(&udc->lock);
+ return 0;
+}
+EXPORT_SYMBOL(usb_gadget_unregister_driver);
+
+/* -------------------------------------------------------------------------- */
+
+int c67x00_udc_probe(struct c67x00_sie *sie)
+{
+ struct c67x00_udc *udc = &controller;
+ unsigned long flags;
+ int i;
+
+ if (udc->sie) {
+ dev_err(sie_dev(sie),
+ "Only 1 peripheral port supported, check sie_config\n");
+ return -EBUSY;
+ }
+
+ spin_lock_init(&udc->lock);
+ INIT_WORK(&udc->io_work, c67x00_udc_io_work);
+ INIT_LIST_HEAD(&udc->gadget.ep_list);
+
+ udc->gadget.ep0 = &udc->ep[0].ep;
+ INIT_LIST_HEAD(&udc->gadget.ep0->ep_list);
+ for (i = 0; i < C67X00_MAX_NB_END_POINTS; i++) {
+ struct c67x00_udc_ep *ep = &udc->ep[i];
+ if (i != 0) {
+ INIT_LIST_HEAD(&udc->ep[i].ep.ep_list);
+ list_add_tail(&udc->ep[i].ep.ep_list,
+ &udc->gadget.ep_list);
+ }
+ ep->ep.name = c67x00_ep_name[i];
+ ep->ep.ops = &c67x00_ep_ops;
+ ep->enable = 0;
+ ep->start_io = 0;
+ if (i == 0)
+ ep->ep.maxpacket = 8;
+ else
+ /* Size is set when endpoint is enabled */
+ ep->ep.maxpacket = 512;
+ ep->ep_num = i;
+ ep->udc = udc;
+ INIT_LIST_HEAD(&ep->queue);
+ }
+
+ udc->sie = sie;
+ udc->gadget.dev.parent = &sie->dev->pdev->dev;
+ device_initialize(&udc->gadget.dev);
+
+ spin_lock_irqsave(&sie->lock, flags);
+ sie->private_data = udc;
+ sie->irq = c67x00_udc_irq;
+ spin_unlock_irqrestore(&sie->lock, flags);
+
+ return 0;
+}
+
+void c67x00_udc_remove(struct c67x00_sie *sie)
+{
+ struct c67x00_udc *udc = sie->private_data;
+
+ if (!udc) {
+ dev_err(sie_dev(sie), "No udc found!\n");
+ return;
+ }
+
+ /* gadget driver must not be registered */
+ BUG_ON(udc->driver != NULL);
+
+ spin_lock(&udc->lock);
+ sie->private_data = NULL;
+ udc->sie = NULL;
+ spin_unlock(&udc->lock);
+}
Index: linux-2.6/drivers/usb/c67x00/c67x00-udc.h
===================================================================
--- /dev/null
+++ linux-2.6/drivers/usb/c67x00/c67x00-udc.h
@@ -0,0 +1,50 @@
+/*
+ * c67x00-udc.h: Cypress C67X00 USB device controller
+ *
+ * Copyright (C) 2006-2008 Barco N.V.
+ * Derived from the Cypress cy7c67200/300 ezusb linux driver and
+ * based on multiple device controller drivers inside the linux kernel.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA.
+ */
+
+#ifndef _USB_C67X00_UDC_H
+#define _USB_C67X00_UDC_H
+
+#include <linux/kernel.h>
+
+#include "c67x00.h"
+
+#ifdef CONFIG_USB_GADGET_C67X00
+/* Functions used by drv */
+int c67x00_udc_probe(struct c67x00_sie *sie);
+void c67x00_udc_remove(struct c67x00_sie *sie);
+
+#else
+static inline int c67x00_udc_probe(struct c67x00_sie *sie)
+{
+ printk(KERN_ERR "udc requested but CONFIG_USB_GADGET_C67X00 "
+ "not enabled!\n");
+ return -ENODEV;
+}
+
+static inline void c67x00_udc_remove(struct c67x00_sie *sie)
+{
+}
+
+#endif /* CONFIG_USB_GADGET_C67X00 */
+
+#endif /* _USB_C67X00_UDC_H */
Index: linux-2.6/drivers/usb/c67x00/c67x00-drv.c
===================================================================
--- linux-2.6.orig/drivers/usb/c67x00/c67x00-drv.c
+++ linux-2.6/drivers/usb/c67x00/c67x00-drv.c
@@ -42,6 +42,7 @@
#include "c67x00.h"
#include "c67x00-hcd.h"
+#include "c67x00-udc.h"
static void c67x00_probe_sie(struct c67x00_sie *sie,
struct c67x00_device *dev, int sie_num)
@@ -56,6 +57,11 @@
c67x00_hcd_probe(sie);
break;
+ case C67X00_SIE_PERIPHERAL_A:
+ case C67X00_SIE_PERIPHERAL_B:
+ c67x00_udc_probe(sie);
+ break;
+
case C67X00_SIE_UNUSED:
dev_info(sie_dev(sie),
"Not using SIE %d as requested\n", sie->sie_num);
@@ -76,6 +82,11 @@
c67x00_hcd_remove(sie);
break;
+ case C67X00_SIE_PERIPHERAL_A:
+ case C67X00_SIE_PERIPHERAL_B:
+ c67x00_udc_remove(sie);
+ break;
+
default:
break;
}
Index: linux-2.6/drivers/usb/c67x00/c67x00-ll-hpi.c
===================================================================
--- linux-2.6.orig/drivers/usb/c67x00/c67x00-ll-hpi.c
+++ linux-2.6/drivers/usb/c67x00/c67x00-ll-hpi.c
@@ -376,6 +376,207 @@
}
/* -------------------------------------------------------------------------- */
+void c67x00_ll_susb_init(struct c67x00_sie *sie)
+{
+ struct c67x00_device *dev = sie->dev;
+ struct c67x00_lcp_int_data data;
+ u16 addr;
+ int rc;
+
+ /* The BIOS SUSB_INIT_INT handler for some reason is hardcoded to only
+ enable peripheral support for port A. Relocate the routine to RAM
+ and patch out that instruction (mov [r10-0xe],[r8]) */
+ addr = hpi_read_word(dev, SUSB_INIT_INT_LOC);
+
+ /* already patched? */
+ if (addr != CY_UDC_BIOS_REPLACE_BASE) {
+ u16 buf[64]; /* should be plenty for the handler */
+ int i;
+
+ c67x00_ll_read_mem_le16(dev, addr, buf, sizeof(buf));
+
+ /* patch it */
+ for (i = 0; i < (ARRAY_SIZE(buf)-1); i++) {
+ if ((buf[i] == cpu_to_le16(0x0432))
+ && (buf[i+1] == cpu_to_le16(0xfff2))) {
+ buf[i] = buf[i+1] = 0; /* nop */
+ break;
+ }
+ }
+
+ if (i >= ARRAY_SIZE(buf))
+ dev_warn(sie_dev(sie), "BIOS code not recognized, "
+ "port B may not be available\n");
+
+ c67x00_ll_write_mem_le16(dev, CY_UDC_BIOS_REPLACE_BASE,
+ buf, sizeof(buf));
+ hpi_write_word(dev, SUSB_INIT_INT_LOC,
+ CY_UDC_BIOS_REPLACE_BASE);
+ }
+
+ hpi_clear_bits(dev, HPI_IRQ_ROUTING_REG,
+ SOFEOP_TO_HPI_EN(sie->sie_num));
+ hpi_set_bits(dev,
+ HPI_IRQ_ROUTING_REG,
+ SOFEOP_TO_CPU_EN(sie->sie_num)
+ | RESUME_TO_HPI_ENABLE(sie->sie_num)
+ | ID_TO_HPI_ENABLE | VBUS_TO_HPI_ENABLE);
+
+ hpi_set_bits(dev,
+ DEVICE_N_IRQ_EN_REG(sie->sie_num),
+ SOF_EOP_TMOUT_IRQ_EN | ID_IRQ_EN | VBUS_IRQ_EN);
+
+ hpi_clear_bits(dev,
+ USB_CTL_REG(sie->sie_num),
+ SOF_EOP_EN(0) | SOF_EOP_EN(1));
+
+ if (sie->mode == C67X00_SIE_PERIPHERAL_A)
+ hpi_write_word(dev, DEVICE_N_PORT_SEL(sie->sie_num), 0x0000);
+ else
+ hpi_write_word(dev, DEVICE_N_PORT_SEL(sie->sie_num), 0x4000);
+
+ data.regs[1] = 0; /* full speed */
+ data.regs[2] = sie->sie_num + 1;
+ rc = c67x00_comm_exec_int(dev, SUSB_INIT_INT, &data);
+
+ if ((hpi_read_word(sie->dev, USB_CTL_REG(sie->sie_num)) & HOST_MODE))
+ dev_warn(sie_dev(sie),
+ "SIE %d not set to peri mode\n", sie->sie_num);
+
+ BUG_ON(rc); /* No return path for error code; crash spectacularly */
+
+ hpi_set_bits(dev,
+ DEVICE_N_IRQ_EN_REG(sie->sie_num),
+ SOF_EOP_TMOUT_IRQ_EN | ID_IRQ_EN | VBUS_IRQ_EN);
+
+ dev_info(sie_dev(sie),
+ "Peripheral USB device setup on SIE%d\n",
+ sie->sie_num);
+}
+
+void c67x00_ll_susb_disable(struct c67x00_sie *sie)
+{
+ hpi_write_word(sie->dev, DEVICE_N_IRQ_EN_REG(sie->sie_num), 0);
+ hpi_write_word(sie->dev, USB_CTL_REG(sie->sie_num), 0x0000);
+}
+
+void c67x00_ll_set_ep_ctrl_reg(struct c67x00_sie *sie, int ep_num, u16 val)
+{
+ hpi_write_word(sie->dev,
+ DEVICE_N_ENDPOINT_N_CTL_REG(sie->sie_num, ep_num), val);
+}
+
+void c67x00_ll_set_ep_packet_size_reg(struct c67x00_sie *sie, int ep_num,
+ u16 val)
+{
+ /* This undocumented register needs to be set to the packet size
+ Normally the BIOS sets this correctly when it is able to parse
+ the configuration descriptor correctly */
+ hpi_write_word(sie->dev,
+ (DEVICE_N_ENDPOINT_N_CTL_REG(sie->sie_num, ep_num)
+ + 0x0A), val);
+}
+
+u16 c67x00_ll_get_device_ep_status(struct c67x00_sie *sie, int ep)
+{
+ return hpi_read_word(sie->dev,
+ DEVICE_N_ENDPOINT_N_STAT_REG(sie->sie_num, ep));
+}
+
+void c67x00_ll_set_device_ep_status(struct c67x00_sie *sie,
+ int ep, u16 value)
+{
+ hpi_write_word(sie->dev,
+ DEVICE_N_ENDPOINT_N_STAT_REG(sie->sie_num, ep),
+ value);
+}
+
+void c67x00_ll_set_device_descriptor_location(struct c67x00_sie *sie,
+ u16 address)
+{
+ hpi_write_word(sie->dev, SUSBx_DEV_DESC_VEC(sie->sie_num), address);
+}
+
+void c67x00_ll_set_configuration_descriptor_location(struct c67x00_sie *sie,
+ u16 address)
+{
+ hpi_write_word(sie->dev, SUSBx_CONF_DESC_VEC(sie->sie_num), address);
+}
+
+void c67x00_ll_set_string_descriptor_location(struct c67x00_sie *sie,
+ u16 address)
+{
+ hpi_write_word(sie->dev, SUSBx_STRING_DESC_VEC(sie->sie_num), address);
+}
+
+int c67x00_ll_susb_start_send(struct c67x00_sie *sie, int ep,
+ void *data, int len)
+{
+ u16 header[4];
+ struct c67x00_lcp_int_data regs;
+
+ c67x00_ll_write_mem_le16(sie->dev, CY_UDC_REQ_BUFFER_ADDR(ep),
+ data, len);
+
+ header[0] = 0;
+ header[1] = cpu_to_le16(CY_UDC_REQ_BUFFER_ADDR(ep));
+ header[2] = cpu_to_le16(len);
+ header[3] = 0;
+
+ c67x00_ll_write_mem_le16(sie->dev, CY_UDC_REQ_HEADER_ADDR(ep), header,
+ sizeof(header));
+
+ regs.regs[0] = 0;
+ regs.regs[1] = ep;
+ regs.regs[8] = CY_UDC_REQ_HEADER_ADDR(ep);
+
+ return c67x00_comm_exec_int(sie->dev, SUSBx_SEND_INT(sie->sie_num),
+ ®s);
+}
+
+int c67x00_ll_susb_start_receive(struct c67x00_sie *sie, int ep, int len)
+{
+ u16 header[4];
+ struct c67x00_lcp_int_data regs;
+
+ header[0] = 0;
+ header[1] = cpu_to_le16(CY_UDC_REQ_BUFFER_ADDR(ep));
+ header[2] = cpu_to_le16(len);
+ header[3] = 0;
+
+ c67x00_ll_write_mem_le16(sie->dev, CY_UDC_REQ_HEADER_ADDR(ep), header,
+ sizeof(header));
+
+ regs.regs[0] = 0;
+ regs.regs[1] = ep;
+ regs.regs[8] = CY_UDC_REQ_HEADER_ADDR(ep);
+
+ return c67x00_comm_exec_int(sie->dev, SUSBx_RECEIVE_INT(sie->sie_num),
+ ®s);
+}
+
+int c67x00_ll_susb_get_transfer_status(struct c67x00_sie *sie, int ep)
+{
+ u16 header[4];
+ u16 result = c67x00_get_comm_reg(sie->dev, 0);
+
+ if (result)
+ return -result;
+
+ c67x00_ll_read_mem_le16(sie->dev, CY_UDC_REQ_HEADER_ADDR(ep),
+ header, sizeof(header));
+ /* nr of bytes not transferred */
+ return le16_to_cpu(header[2]);
+}
+
+void c67x00_ll_susb_receive(struct c67x00_sie *sie, int ep,
+ void *data, int len)
+{
+ c67x00_ll_read_mem_le16(sie->dev, CY_UDC_REQ_BUFFER_ADDR(ep),
+ data, len);
+}
+
+/* -------------------------------------------------------------------------- */
void c67x00_ll_irq(struct c67x00_device *dev, u16 int_status)
{
Index: linux-2.6/drivers/usb/c67x00/c67x00.h
===================================================================
--- linux-2.6.orig/drivers/usb/c67x00/c67x00.h
+++ linux-2.6/drivers/usb/c67x00/c67x00.h
@@ -284,6 +284,27 @@
void c67x00_ll_husb_init_host_port(struct c67x00_sie *sie);
void c67x00_ll_husb_reset_port(struct c67x00_sie *sie, int port);
+/* Slave specific functions */
+void c67x00_ll_susb_init(struct c67x00_sie *sie);
+void c67x00_ll_susb_disable(struct c67x00_sie *sie);
+void c67x00_ll_set_ep_ctrl_reg(struct c67x00_sie *sie, int ep_num, u16 val);
+void c67x00_ll_set_ep_packet_size_reg(struct c67x00_sie *sie, int ep_num,
+ u16 val);
+u16 c67x00_ll_get_device_ep_status(struct c67x00_sie *sie, int ep);
+void c67x00_ll_set_device_ep_status(struct c67x00_sie *sie, int ep, u16 value);
+void c67x00_ll_set_device_descriptor_location(struct c67x00_sie *sie,
+ u16 address);
+void c67x00_ll_set_configuration_descriptor_location(struct c67x00_sie *sie,
+ u16 address);
+void c67x00_ll_set_string_descriptor_location(struct c67x00_sie *sie,
+ u16 address);
+int c67x00_ll_susb_start_send(struct c67x00_sie *sie, int ep,
+ void *data, int len);
+int c67x00_ll_susb_start_receive(struct c67x00_sie *sie, int ep, int len);
+int c67x00_ll_susb_get_transfer_status(struct c67x00_sie *sie, int ep);
+void c67x00_ll_susb_receive(struct c67x00_sie *sie, int ep,
+ void *data, int len);
+
/* Called by c67x00_irq to handle lcp interrupts */
void c67x00_ll_irq(struct c67x00_device *dev, u16 int_status);
Index: linux-2.6/drivers/usb/c67x00/Makefile
===================================================================
--- linux-2.6.orig/drivers/usb/c67x00/Makefile
+++ linux-2.6/drivers/usb/c67x00/Makefile
@@ -6,6 +6,9 @@
EXTRA_CFLAGS += -DDEBUG
endif
-obj-$(CONFIG_USB_C67X00_HCD) += c67x00.o
+obj-$(CONFIG_USB_C67X00_DRV) += c67x00.o
-c67x00-objs := c67x00-drv.o c67x00-ll-hpi.o c67x00-hcd.o c67x00-sched.o
+c67x00-y += c67x00-drv.o c67x00-ll-hpi.o
+
+c67x00-$(CONFIG_USB_C67X00_HCD) += c67x00-hcd.o c67x00-sched.o
+c67x00-$(CONFIG_USB_GADGET_C67X00) += c67x00-udc.o
Index: linux-2.6/drivers/usb/gadget/Kconfig
===================================================================
--- linux-2.6.orig/drivers/usb/gadget/Kconfig
+++ linux-2.6/drivers/usb/gadget/Kconfig
@@ -324,6 +324,13 @@
depends on USB_GADGET_AT91
default USB_GADGET
+config USB_GADGET_C67X00
+ boolean "Cypress C67X00 Gadget support"
+ depends on USB_C67X00_DRV
+ select USB_GADGET_SELECTED
+ help
+ This enables the gadget functionality of the Cypress C67X00.
+
config USB_GADGET_DUMMY_HCD
boolean "Dummy HCD (DEVELOPMENT)"
depends on (USB=y || (USB=m && USB_GADGET=m)) && EXPERIMENTAL
Index: linux-2.6/drivers/usb/gadget/gadget_chips.h
===================================================================
--- linux-2.6.orig/drivers/usb/gadget/gadget_chips.h
+++ linux-2.6/drivers/usb/gadget/gadget_chips.h
@@ -147,6 +147,12 @@
#define gadget_is_m66592(g) 0
#endif
+#ifdef CONFIG_USB_GADGET_C67X00
+#define gadget_is_c67x00(g) !strcmp("c67x00_udc", (g)->name)
+#else
+#define gadget_is_c67x00(g) 0
+#endif
+
// CONFIG_USB_GADGET_SX2
// CONFIG_USB_GADGET_AU1X00
@@ -212,5 +218,7 @@
return 0x20;
else if (gadget_is_m66592(gadget))
return 0x21;
+ else if (gadget_is_c67x00(gadget))
+ return 0x22;
return -ENOENT;
}
Index: linux-2.6/drivers/usb/host/Kconfig
===================================================================
--- linux-2.6.orig/drivers/usb/host/Kconfig
+++ linux-2.6/drivers/usb/host/Kconfig
@@ -261,15 +261,3 @@
To compile this driver as a module, choose M here: the
module will be called r8a66597-hcd.
-config USB_C67X00_HCD
- tristate "Cypress C67x00 HCD support"
- depends on USB
- help
- The Cypress C67x00 (EZ-Host/EZ-OTG) chips are dual-role
- host/peripheral/OTG USB controllers.
-
- Enable this option to support this chip in host controller mode.
- If unsure, say N.
-
- To compile this driver as a module, choose M here: the
- module will be called c67x00.
Index: linux-2.6/drivers/usb/Makefile
===================================================================
--- linux-2.6.orig/drivers/usb/Makefile
+++ linux-2.6/drivers/usb/Makefile
@@ -17,7 +17,7 @@
obj-$(CONFIG_USB_U132_HCD) += host/
obj-$(CONFIG_USB_R8A66597_HCD) += host/
-obj-$(CONFIG_USB_C67X00_HCD) += c67x00/
+obj-$(CONFIG_USB_C67X00_DRV) += c67x00/
obj-$(CONFIG_USB_ACM) += class/
obj-$(CONFIG_USB_PRINTER) += class/
Index: linux-2.6/drivers/usb/Kconfig
===================================================================
--- linux-2.6.orig/drivers/usb/Kconfig
+++ linux-2.6/drivers/usb/Kconfig
@@ -91,6 +91,8 @@
source "drivers/usb/host/Kconfig"
+source "drivers/usb/c67x00/Kconfig"
+
source "drivers/usb/class/Kconfig"
source "drivers/usb/storage/Kconfig"
Index: linux-2.6/drivers/usb/c67x00/Kconfig
===================================================================
--- /dev/null
+++ linux-2.6/drivers/usb/c67x00/Kconfig
@@ -0,0 +1,21 @@
+#
+# Cypress C67x00 USB controller
+#
+config USB_C67X00_DRV
+ tristate "Cypress C67x00 support"
+ # only allowed to be =y if both USB!=m and USB_GADGET!=m
+ depends on (!USB && USB_GADGET) || (!USB_GADGET && USB) || (USB && USB_GADGET)
+ help
+ The Cypress C67x00 (EZ-Host/EZ-OTG) chips are dual-role
+ host/peripheral USB controllers.
+
+ To compile this driver as a module, choose M here: the
+ module will be called c67x00.
+
+config USB_C67X00_HCD
+ bool "Cypress C67X00 HCD support"
+ depends on USB && USB_C67X00_DRV
+ default y
+ help
+ Enable this option to support the Cypress C67x00 in host
+ controller mode.
--
Bye, Peter Korsgaard
^ permalink raw reply
* [patch v5 3/4] USB: add Cypress c67x00 OTG controller HCD driver
From: Peter Korsgaard @ 2008-01-24 14:47 UTC (permalink / raw)
To: dbrownell, linux-usb, linuxppc-dev, grant.likely
In-Reply-To: <20080124144706.041042000@sunsite.dk>
This patch adds HCD support for the Cypress c67x00 family of devices.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
---
drivers/usb/Makefile | 2
drivers/usb/c67x00/Makefile | 11
drivers/usb/c67x00/c67x00-drv.c | 13
drivers/usb/c67x00/c67x00-hcd.c | 410 ++++++++++++
drivers/usb/c67x00/c67x00-hcd.h | 152 ++++
drivers/usb/c67x00/c67x00-ll-hpi.c | 75 ++
drivers/usb/c67x00/c67x00-sched.c | 1194 +++++++++++++++++++++++++++++++++++++
drivers/usb/c67x00/c67x00.h | 9
drivers/usb/host/Kconfig | 12
9 files changed, 1878 insertions(+)
Index: linux-2.6/drivers/usb/c67x00/c67x00-hcd.c
===================================================================
--- /dev/null
+++ linux-2.6/drivers/usb/c67x00/c67x00-hcd.c
@@ -0,0 +1,410 @@
+/*
+ * c67x00-hcd.c: Cypress C67X00 USB Host Controller Driver
+ *
+ * Copyright (C) 2006-2008 Barco N.V.
+ * Derived from the Cypress cy7c67200/300 ezusb linux driver and
+ * based on multiple host controller drivers inside the linux kernel.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA.
+ */
+
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/usb.h>
+
+#include "c67x00.h"
+#include "c67x00-hcd.h"
+
+/* --------------------------------------------------------------------------
+ * Root Hub Support
+ */
+
+static __u8 c67x00_hub_des[] = {
+ 0x09, /* __u8 bLength; */
+ 0x29, /* __u8 bDescriptorType; Hub-descriptor */
+ 0x02, /* __u8 bNbrPorts; */
+ 0x00, /* __u16 wHubCharacteristics; */
+ 0x00, /* (per-port OC, no power switching) */
+ 0x32, /* __u8 bPwrOn2pwrGood; 2ms */
+ 0x00, /* __u8 bHubContrCurrent; 0 mA */
+ 0x00, /* __u8 DeviceRemovable; ** 7 Ports max ** */
+ 0xff, /* __u8 PortPwrCtrlMask; ** 7 ports max ** */
+};
+
+static void c67x00_hub_reset_host_port(struct c67x00_sie *sie, int port)
+{
+ struct c67x00_hcd *c67x00 = sie->private_data;
+ unsigned long flags;
+
+ c67x00_ll_husb_reset(sie, port);
+
+ spin_lock_irqsave(&c67x00->lock, flags);
+ c67x00_ll_husb_reset_port(sie, port);
+ spin_unlock_irqrestore(&c67x00->lock, flags);
+
+ c67x00_ll_set_husb_eot(sie->dev, DEFAULT_EOT);
+}
+
+static int c67x00_hub_status_data(struct usb_hcd *hcd, char *buf)
+{
+ struct c67x00_hcd *c67x00 = hcd_to_c67x00_hcd(hcd);
+ struct c67x00_sie *sie = c67x00->sie;
+ u16 status;
+ int i;
+
+ *buf = 0;
+ status = c67x00_ll_usb_get_status(sie);
+ for (i = 0; i < C67X00_PORTS; i++)
+ if (status & PORT_CONNECT_CHANGE(i))
+ *buf |= (1 << i);
+
+ /* bit 0 denotes hub change, b1..n port change */
+ *buf <<= 1;
+
+ return !!*buf;
+}
+
+static int c67x00_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
+ u16 wIndex, char *buf, u16 wLength)
+{
+ struct c67x00_hcd *c67x00 = hcd_to_c67x00_hcd(hcd);
+ struct c67x00_sie *sie = c67x00->sie;
+ u16 status, usb_status;
+ int len = 0;
+ unsigned int port = wIndex-1;
+ u16 wPortChange, wPortStatus;
+
+ switch (typeReq) {
+
+ case GetHubStatus:
+ *(__le32 *) buf = cpu_to_le32(0);
+ len = 4; /* hub power */
+ break;
+
+ case GetPortStatus:
+ if (wIndex > C67X00_PORTS)
+ return -EPIPE;
+
+ status = c67x00_ll_usb_get_status(sie);
+ usb_status = c67x00_ll_get_usb_ctl(sie);
+
+ wPortChange = 0;
+ if (status & PORT_CONNECT_CHANGE(port))
+ wPortChange |= USB_PORT_STAT_C_CONNECTION;
+
+ wPortStatus = USB_PORT_STAT_POWER;
+ if (!(status & PORT_SE0_STATUS(port)))
+ wPortStatus |= USB_PORT_STAT_CONNECTION;
+ if (usb_status & LOW_SPEED_PORT(port)) {
+ wPortStatus |= USB_PORT_STAT_LOW_SPEED;
+ c67x00->low_speed_ports |= (1 << port);
+ } else
+ c67x00->low_speed_ports &= ~(1 << port);
+
+ if (usb_status & SOF_EOP_EN(port))
+ wPortStatus |= USB_PORT_STAT_ENABLE;
+
+ *(__le16 *) buf = cpu_to_le16(wPortStatus);
+ *(__le16 *) (buf + 2) = cpu_to_le16(wPortChange);
+ len = 4;
+ break;
+
+ case SetHubFeature: /* We don't implement these */
+ case ClearHubFeature:
+ switch (wValue) {
+ case C_HUB_OVER_CURRENT:
+ case C_HUB_LOCAL_POWER:
+ len = 0;
+ break;
+
+ default:
+ return -EPIPE;
+ }
+ break;
+
+ case SetPortFeature:
+ if (wIndex > C67X00_PORTS)
+ return -EPIPE;
+
+ switch (wValue) {
+ case USB_PORT_FEAT_SUSPEND:
+ dev_dbg(c67x00_hcd_dev(c67x00),
+ "SetPortFeature %d (SUSPEND)\n", port);
+ len = 0;
+ break;
+
+ case USB_PORT_FEAT_RESET:
+ c67x00_hub_reset_host_port(sie, port);
+ len = 0;
+ break;
+
+ case USB_PORT_FEAT_POWER:
+ /* Power always enabled */
+ len = 0;
+ break;
+
+ default:
+ dev_dbg(c67x00_hcd_dev(c67x00),
+ "%s: SetPortFeature %d (0x%04x) Error!\n",
+ __FUNCTION__, port, wValue);
+ return -EPIPE;
+ }
+ break;
+
+ case ClearPortFeature:
+ if (wIndex > C67X00_PORTS)
+ return -EPIPE;
+
+ switch (wValue) {
+ case USB_PORT_FEAT_ENABLE:
+ /* Reset the port so that the c67x00 also notices the
+ * disconnect */
+ c67x00_hub_reset_host_port(sie, port);
+ len = 0;
+ break;
+
+ case USB_PORT_FEAT_C_ENABLE:
+ dev_dbg(c67x00_hcd_dev(c67x00),
+ "ClearPortFeature (%d): C_ENABLE\n", port);
+ len = 0;
+ break;
+
+ case USB_PORT_FEAT_SUSPEND:
+ dev_dbg(c67x00_hcd_dev(c67x00),
+ "ClearPortFeature (%d): SUSPEND\n", port);
+ len = 0;
+ break;
+
+ case USB_PORT_FEAT_C_SUSPEND:
+ dev_dbg(c67x00_hcd_dev(c67x00),
+ "ClearPortFeature (%d): C_SUSPEND\n", port);
+ len = 0;
+ break;
+
+ case USB_PORT_FEAT_POWER:
+ dev_dbg(c67x00_hcd_dev(c67x00),
+ "ClearPortFeature (%d): POWER\n", port);
+ return -EPIPE;
+
+ case USB_PORT_FEAT_C_CONNECTION:
+ c67x00_ll_usb_clear_status(sie,
+ PORT_CONNECT_CHANGE(port));
+ len = 0;
+ break;
+
+ case USB_PORT_FEAT_C_OVER_CURRENT:
+ dev_dbg(c67x00_hcd_dev(c67x00),
+ "ClearPortFeature (%d): OVER_CURRENT\n", port);
+ len = 0;
+ break;
+
+ case USB_PORT_FEAT_C_RESET:
+ dev_dbg(c67x00_hcd_dev(c67x00),
+ "ClearPortFeature (%d): C_RESET\n", port);
+ len = 0;
+ break;
+
+ default:
+ dev_dbg(c67x00_hcd_dev(c67x00),
+ "%s: ClearPortFeature %d (0x%04x) Error!\n",
+ __FUNCTION__, port, wValue);
+ return -EPIPE;
+ }
+ break;
+
+ case GetHubDescriptor:
+ len = min_t(unsigned int, sizeof(c67x00_hub_des), wLength);
+ memcpy(buf, c67x00_hub_des, len);
+ break;
+
+ default:
+ dev_dbg(c67x00_hcd_dev(c67x00), "%s: unknown\n", __FUNCTION__);
+ return -EPIPE;
+ }
+
+ return 0;
+}
+
+/* ---------------------------------------------------------------------
+ * Main part of host controller driver
+ */
+
+/**
+ * c67x00_hcd_irq
+ *
+ * This function is called from the interrupt handler in c67x00-drv.c
+ */
+static void c67x00_hcd_irq(struct c67x00_sie *sie, u16 int_status, u16 msg)
+{
+ struct c67x00_hcd *c67x00 = sie->private_data;
+ struct usb_hcd *hcd = c67x00_hcd_to_hcd(c67x00);
+
+ /* Handle sie message flags */
+ if (msg) {
+ if (msg & HUSB_TDListDone)
+ c67x00_sched_kick(c67x00);
+ else
+ dev_warn(c67x00_hcd_dev(c67x00),
+ "Unknown SIE msg flag(s): 0x%04x\n", msg);
+ }
+
+ if (unlikely(hcd->state == HC_STATE_HALT))
+ return;
+
+ if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags))
+ return;
+
+ /* Handle Start of frame events */
+ if (int_status & SOFEOP_FLG(sie->sie_num)) {
+ c67x00_ll_usb_clear_status(sie, SOF_EOP_IRQ_FLG);
+ c67x00_sched_kick(c67x00);
+ set_bit(HCD_FLAG_SAW_IRQ, &hcd->flags);
+ }
+}
+
+/**
+ * c67x00_hcd_start: Host controller start hook
+ */
+static int c67x00_hcd_start(struct usb_hcd *hcd)
+{
+ hcd->uses_new_polling = 1;
+ hcd->state = HC_STATE_RUNNING;
+ hcd->poll_rh = 1;
+
+ return 0;
+}
+
+/**
+ * c67x00_hcd_stop: Host controller stop hook
+ */
+static void c67x00_hcd_stop(struct usb_hcd *hcd)
+{
+ /* Nothing to do */
+}
+
+static int c67x00_hcd_get_frame(struct usb_hcd *hcd)
+{
+ struct c67x00_hcd *c67x00 = hcd_to_c67x00_hcd(hcd);
+ u16 temp_val;
+
+ dev_dbg(c67x00_hcd_dev(c67x00), "%s\n", __FUNCTION__);
+ temp_val = c67x00_ll_husb_get_frame(c67x00->sie);
+ temp_val &= HOST_FRAME_MASK;
+ return temp_val ? (temp_val - 1) : HOST_FRAME_MASK;
+}
+
+static struct hc_driver c67x00_hc_driver = {
+ .description = "c67x00-hcd",
+ .product_desc = "Cypress C67X00 Host Controller",
+ .hcd_priv_size = sizeof(struct c67x00_hcd),
+ .flags = HCD_USB11 | HCD_MEMORY,
+
+ /*
+ * basic lifecycle operations
+ */
+ .start = c67x00_hcd_start,
+ .stop = c67x00_hcd_stop,
+
+ /*
+ * managing i/o requests and associated device resources
+ */
+ .urb_enqueue = c67x00_urb_enqueue,
+ .urb_dequeue = c67x00_urb_dequeue,
+ .endpoint_disable = c67x00_endpoint_disable,
+
+ /*
+ * scheduling support
+ */
+ .get_frame_number = c67x00_hcd_get_frame,
+
+ /*
+ * root hub support
+ */
+ .hub_status_data = c67x00_hub_status_data,
+ .hub_control = c67x00_hub_control,
+};
+
+/* ---------------------------------------------------------------------
+ * Setup/Teardown routines
+ */
+
+int c67x00_hcd_probe(struct c67x00_sie *sie)
+{
+ struct c67x00_hcd *c67x00;
+ struct usb_hcd *hcd;
+ unsigned long flags;
+ int retval;
+
+ hcd = usb_create_hcd(&c67x00_hc_driver, sie_dev(sie), "c67x00_sie");
+ if (!hcd) {
+ retval = -ENOMEM;
+ goto err0;
+ }
+ c67x00 = hcd_to_c67x00_hcd(hcd);
+
+ spin_lock_init(&c67x00->lock);
+ c67x00->sie = sie;
+
+ INIT_LIST_HEAD(&c67x00->list[PIPE_ISOCHRONOUS]);
+ INIT_LIST_HEAD(&c67x00->list[PIPE_INTERRUPT]);
+ INIT_LIST_HEAD(&c67x00->list[PIPE_CONTROL]);
+ INIT_LIST_HEAD(&c67x00->list[PIPE_BULK]);
+ c67x00->urb_count = 0;
+ INIT_LIST_HEAD(&c67x00->td_list);
+ INIT_LIST_HEAD(&c67x00->done_list);
+ c67x00->td_base_addr = CY_HCD_BUF_ADDR + SIE_TD_OFFSET(sie->sie_num);
+ c67x00->buf_base_addr = CY_HCD_BUF_ADDR + SIE_BUF_OFFSET(sie->sie_num);
+ c67x00->max_frame_bw = MAX_FRAME_BW_STD;
+
+ c67x00_ll_husb_init_host_port(sie);
+
+ init_completion(&c67x00->endpoint_disable);
+ retval = c67x00_sched_start_scheduler(c67x00);
+ if (retval)
+ goto err1;
+
+ retval = usb_add_hcd(hcd, 0, 0);
+ if (retval) {
+ dev_dbg(sie_dev(sie), "%s: usb_add_hcd returned %d\n",
+ __FUNCTION__, retval);
+ goto err2;
+ }
+
+ spin_lock_irqsave(&sie->lock, flags);
+ sie->private_data = c67x00;
+ sie->irq = c67x00_hcd_irq;
+ spin_unlock_irqrestore(&sie->lock, flags);
+
+ return retval;
+
+ err2:
+ c67x00_sched_stop_scheduler(c67x00);
+ err1:
+ usb_put_hcd(hcd);
+ err0:
+ return retval;
+}
+
+/* may be called with controller, bus, and devices active */
+void c67x00_hcd_remove(struct c67x00_sie *sie)
+{
+ struct c67x00_hcd *c67x00 = sie->private_data;
+ struct usb_hcd *hcd = c67x00_hcd_to_hcd(c67x00);
+
+ c67x00_sched_stop_scheduler(c67x00);
+ usb_remove_hcd(hcd);
+ usb_put_hcd(hcd);
+}
Index: linux-2.6/drivers/usb/c67x00/c67x00-hcd.h
===================================================================
--- /dev/null
+++ linux-2.6/drivers/usb/c67x00/c67x00-hcd.h
@@ -0,0 +1,152 @@
+/*
+ * c67x00-hcd.h: Cypress C67X00 USB HCD
+ *
+ * Copyright (C) 2006-2008 Barco N.V.
+ * Derived from the Cypress cy7c67200/300 ezusb linux driver and
+ * based on multiple host controller drivers inside the linux kernel.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA.
+ */
+
+#ifndef _USB_C67X00_HCD_H
+#define _USB_C67X00_HCD_H
+
+#include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <linux/list.h>
+#include <linux/usb.h>
+#include "../core/hcd.h"
+#include "c67x00.h"
+
+/*
+ * The following parameters depend on the CPU speed, bus speed, ...
+ * These can be tuned for specific use cases, e.g. if isochronous transfers
+ * are very important, bandwith can be sacrificed to guarantee that the
+ * 1ms deadline will be met.
+ * If bulk transfers are important, the MAX_FRAME_BW can be increased,
+ * but some (or many) isochronous deadlines might not be met.
+ *
+ * The values are specified in bittime.
+ */
+
+/*
+ * The current implementation switches between _STD (default) and _ISO (when
+ * isochronous transfers are scheduled), in order to optimize the throughput
+ * in normal cicrumstances, but also provide good isochronous behaviour.
+ *
+ * Bandwidth is described in bit time so with a 12MHz USB clock and 1ms
+ * frames; there are 12000 bit times per frame.
+ */
+
+#define TOTAL_FRAME_BW 12000
+#define DEFAULT_EOT 2250
+
+#define MAX_FRAME_BW_STD (TOTAL_FRAME_BW - DEFAULT_EOT)
+#define MAX_FRAME_BW_ISO 2400
+
+/*
+ * Periodic transfers may only use 90% of the full frame, but as
+ * we currently don't even use 90% of the full frame, we may
+ * use the full usable time for periodic transfers.
+ */
+#define MAX_PERIODIC_BW(full_bw) full_bw
+
+/* -------------------------------------------------------------------------- */
+
+struct c67x00_hcd {
+ spinlock_t lock;
+ struct c67x00_sie *sie;
+ unsigned int low_speed_ports; /* bitmask of low speed ports */
+ unsigned int urb_count;
+ unsigned int urb_iso_count;
+
+ struct list_head list[4]; /* iso, int, ctrl, bulk */
+#if PIPE_BULK != 3
+#error "Sanity check failed, this code presumes PIPE_... to range from 0 to 3"
+#endif
+
+ /* USB bandwidth allocated to td_list */
+ int bandwidth_allocated;
+ /* USB bandwidth allocated for isoc/int transfer */
+ int periodic_bw_allocated;
+ struct list_head td_list;
+ struct list_head done_list;
+ int max_frame_bw;
+
+ u16 td_base_addr;
+ u16 buf_base_addr;
+ u16 next_td_addr;
+ u16 next_buf_addr;
+
+ struct tasklet_struct tasklet;
+ struct tasklet_struct done_tasklet;
+
+ struct completion endpoint_disable;
+
+ u16 current_frame;
+ u16 last_frame;
+};
+
+static inline struct c67x00_hcd *hcd_to_c67x00_hcd(struct usb_hcd *hcd)
+{
+ return (struct c67x00_hcd *)(hcd->hcd_priv);
+}
+
+static inline struct usb_hcd *c67x00_hcd_to_hcd(struct c67x00_hcd *c67x00)
+{
+ return container_of((void *)c67x00, struct usb_hcd, hcd_priv);
+}
+
+/* -------------------------------------------------------------------------- */
+
+#ifdef CONFIG_USB_C67X00_HCD
+/* Functions used by drv */
+int c67x00_hcd_probe(struct c67x00_sie *sie);
+void c67x00_hcd_remove(struct c67x00_sie *sie);
+#else
+static inline int c67x00_hcd_probe(struct c67x00_sie *sie)
+{
+ printk(KERN_ERR "hcd requested but CONFIG_USB_C67X00_HCD "
+ "not enabled!\n");
+ return -ENODEV;
+}
+
+static inline void c67x00_hcd_remove(struct c67x00_sie *sie)
+{
+}
+
+static int usb_disabled(void)
+{
+ return 0;
+}
+#endif /* CONFIG_USB_C67X00_HCD */
+
+/* ---------------------------------------------------------------------
+ * Transfer Descriptor scheduling functions
+ */
+int c67x00_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags);
+int c67x00_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status);
+void c67x00_endpoint_disable(struct usb_hcd *hcd,
+ struct usb_host_endpoint *ep);
+
+void c67x00_hcd_msg_received(struct c67x00_sie *sie, u16 msg);
+void c67x00_sched_kick(struct c67x00_hcd *c67x00);
+int c67x00_sched_start_scheduler(struct c67x00_hcd *c67x00);
+void c67x00_sched_stop_scheduler(struct c67x00_hcd *c67x00);
+
+#define c67x00_hcd_dev(x) (c67x00_hcd_to_hcd(x)->self.controller)
+
+#endif /* _USB_C67X00_HCD_H */
Index: linux-2.6/drivers/usb/c67x00/c67x00-sched.c
===================================================================
--- /dev/null
+++ linux-2.6/drivers/usb/c67x00/c67x00-sched.c
@@ -0,0 +1,1194 @@
+/*
+ * c67x00-sched.c: Cypress C67X00 USB Host Controller Driver - TD scheduling
+ *
+ * Copyright (C) 2006-2008 Barco N.V.
+ * Derived from the Cypress cy7c67200/300 ezusb linux driver and
+ * based on multiple host controller drivers inside the linux kernel.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA.
+ */
+
+#include <linux/kthread.h>
+
+#include "c67x00.h"
+#include "c67x00-hcd.h"
+
+/*
+ * These are the stages for a control urb, they are kept
+ * in both urb->interval and td->privdata.
+ */
+#define SETUP_STAGE 0
+#define DATA_STAGE 1
+#define STATUS_STAGE 2
+
+/* -------------------------------------------------------------------------- */
+
+/**
+ * struct c67x00_ep_data: Host endpoint data structure
+ */
+struct c67x00_ep_data {
+ struct list_head queue;
+ struct list_head node;
+ struct usb_host_endpoint *hep;
+ struct usb_device *dev;
+ u16 next_frame; /* For int/isoc transactions */
+};
+
+/**
+ * struct c67x00_td
+ *
+ * Hardware parts are little endiannes, SW in CPU endianess.
+ */
+struct c67x00_td {
+ /* HW specific part */
+ __le16 ly_base_addr; /* Bytes 0-1 */
+ __le16 port_length; /* Bytes 2-3 */
+ u8 pid_ep; /* Byte 4 */
+ u8 dev_addr; /* Byte 5 */
+ u8 ctrl_reg; /* Byte 6 */
+ u8 status; /* Byte 7 */
+ u8 retry_cnt; /* Byte 8 */
+#define TT_OFFSET 2
+#define TT_CONTROL 0
+#define TT_ISOCHRONOUS 1
+#define TT_BULK 2
+#define TT_INTERRUPT 3
+ u8 residue; /* Byte 9 */
+ __le16 next_td_addr; /* Bytes 10-11 */
+ /* SW part */
+ struct list_head td_list;
+ u16 td_addr;
+ void *data;
+ struct urb *urb;
+ unsigned long privdata;
+
+ /* These are needed for handling the toggle bits:
+ * an urb can be dequeued while a td is in progress
+ * after checking the td, the toggle bit might need to
+ * be fixed */
+ struct c67x00_ep_data *ep_data;
+ unsigned int pipe;
+};
+
+struct c67x00_urb_priv {
+ struct list_head hep_node;
+ struct urb *urb;
+ int port;
+ int cnt; /* packet number for isoc */
+ int status;
+ struct c67x00_ep_data *ep_data;
+};
+
+#define td_udev(td) ((td)->ep_data->dev)
+
+#define CY_TD_SIZE 12
+
+#define TD_PIDEP_OFFSET 0x04
+#define TD_PIDEPMASK_PID 0xF0
+#define TD_PIDEPMASK_EP 0x0F
+#define TD_PORTLENMASK_DL 0x02FF
+#define TD_PORTLENMASK_PN 0xC000
+
+#define TD_STATUS_OFFSET 0x07
+#define TD_STATUSMASK_ACK 0x01
+#define TD_STATUSMASK_ERR 0x02
+#define TD_STATUSMASK_TMOUT 0x04
+#define TD_STATUSMASK_SEQ 0x08
+#define TD_STATUSMASK_SETUP 0x10
+#define TD_STATUSMASK_OVF 0x20
+#define TD_STATUSMASK_NAK 0x40
+#define TD_STATUSMASK_STALL 0x80
+
+#define TD_ERROR_MASK (TD_STATUSMASK_ERR | TD_STATUSMASK_TMOUT | \
+ TD_STATUSMASK_STALL)
+
+#define TD_RETRYCNT_OFFSET 0x08
+#define TD_RETRYCNTMASK_ACT_FLG 0x10
+#define TD_RETRYCNTMASK_TX_TYPE 0x0C
+#define TD_RETRYCNTMASK_RTY_CNT 0x03
+
+#define TD_RESIDUE_OVERFLOW 0x80
+
+#define TD_PID_IN 0x90
+
+/* Residue: signed 8bits, neg -> OVERFLOW, pos -> UNDERFLOW */
+#define td_residue(td) ((__s8)(td->residue))
+#define td_ly_base_addr(td) (__le16_to_cpu((td)->ly_base_addr))
+#define td_port_length(td) (__le16_to_cpu((td)->port_length))
+#define td_next_td_addr(td) (__le16_to_cpu((td)->next_td_addr))
+
+#define td_active(td) ((td)->retry_cnt & TD_RETRYCNTMASK_ACT_FLG)
+#define td_length(td) (td_port_length(td) & TD_PORTLENMASK_DL)
+
+#define td_sequence_ok(td) (!td->status || \
+ (!(td->status & TD_STATUSMASK_SEQ) == \
+ !(td->ctrl_reg & SEQ_SEL)))
+
+#define td_acked(td) (!td->status || \
+ (td->status & TD_STATUSMASK_ACK))
+#define td_actual_bytes(td) (td_length(td) - td_residue(td))
+
+/* -------------------------------------------------------------------------- */
+
+#ifdef DEBUG
+
+/**
+ * dbg_td - Dump the contents of the TD
+ */
+static void dbg_td(struct c67x00_hcd *c67x00, struct c67x00_td *td, char *msg)
+{
+ struct device *dev = c67x00_hcd_dev(c67x00);
+
+ dev_dbg(dev, "### %s at 0x%04x\n", msg, td->td_addr);
+ dev_dbg(dev, "urb: 0x%p\n", td->urb);
+ dev_dbg(dev, "endpoint: %4d\n", usb_pipeendpoint(td->pipe));
+ dev_dbg(dev, "pipeout: %4d\n", usb_pipeout(td->pipe));
+ dev_dbg(dev, "ly_base_addr: 0x%04x\n", td_ly_base_addr(td));
+ dev_dbg(dev, "port_length: 0x%04x\n", td_port_length(td));
+ dev_dbg(dev, "pid_ep: 0x%02x\n", td->pid_ep);
+ dev_dbg(dev, "dev_addr: 0x%02x\n", td->dev_addr);
+ dev_dbg(dev, "ctrl_reg: 0x%02x\n", td->ctrl_reg);
+ dev_dbg(dev, "status: 0x%02x\n", td->status);
+ dev_dbg(dev, "retry_cnt: 0x%02x\n", td->retry_cnt);
+ dev_dbg(dev, "residue: 0x%02x\n", td->residue);
+ dev_dbg(dev, "next_td_addr: 0x%04x\n", td_next_td_addr(td));
+ dev_dbg(dev, "data:");
+ print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 16, 1,
+ td->data, td_length(td), 1);
+}
+#else /* DEBUG */
+
+static inline void
+dbg_td(struct c67x00_hcd *c67x00, struct c67x00_td *td, char *msg) { }
+
+#endif /* DEBUG */
+
+/* -------------------------------------------------------------------------- */
+/* Helper functions */
+
+static inline u16 c67x00_get_current_frame_number(struct c67x00_hcd *c67x00)
+{
+ u16 temp_val;
+ temp_val = c67x00_ll_husb_get_frame(c67x00->sie);
+ temp_val &= HOST_FRAME_MASK;
+ return temp_val;
+}
+
+/**
+ * frame_add
+ * Software wraparound for framenumbers.
+ */
+static inline u16 frame_add(u16 a, u16 b)
+{
+ return (a + b) & HOST_FRAME_MASK;
+}
+
+/**
+ * frame_after - is frame a after frame b
+ */
+static inline int frame_after(u16 a, u16 b)
+{
+ return ((HOST_FRAME_MASK + a - b) & HOST_FRAME_MASK) <
+ (HOST_FRAME_MASK / 2);
+}
+
+/**
+ * frame_after_eq - is frame a after or equal to frame b
+ */
+static inline int frame_after_eq(u16 a, u16 b)
+{
+ return ((HOST_FRAME_MASK + 1 + a - b) & HOST_FRAME_MASK) <
+ (HOST_FRAME_MASK / 2);
+}
+
+/* -------------------------------------------------------------------------- */
+
+/**
+ * c67x00_release_urb - remove link from all tds to this urb
+ * Disconnects the urb from it's tds, so that it can be given back.
+ * pre: urb->hcpriv != NULL
+ */
+static void c67x00_release_urb(struct c67x00_hcd *c67x00, struct urb *urb)
+{
+ struct c67x00_td *td;
+ struct c67x00_urb_priv *urbp;
+
+ BUG_ON(!urb);
+
+ c67x00->urb_count--;
+
+ if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
+ c67x00->urb_iso_count--;
+ if (c67x00->urb_iso_count == 0)
+ c67x00->max_frame_bw = MAX_FRAME_BW_STD;
+ }
+
+ /* TODO this might be not so efficient when we've got many urbs!
+ * Alternatives:
+ * * only clear when needed
+ * * keep a list of tds with earch urbp
+ */
+ list_for_each_entry(td, &c67x00->td_list, td_list)
+ if (urb == td->urb)
+ td->urb = NULL;
+
+ urbp = urb->hcpriv;
+ urb->hcpriv = NULL;
+ list_del(&urbp->hep_node);
+ kfree(urbp);
+}
+
+/* -------------------------------------------------------------------------- */
+
+static struct c67x00_ep_data *
+c67x00_ep_data_alloc(struct c67x00_hcd *c67x00, struct urb *urb)
+{
+ struct usb_host_endpoint *hep = urb->ep;
+ struct c67x00_ep_data *ep_data;
+ int type;
+
+ c67x00->current_frame = c67x00_get_current_frame_number(c67x00);
+
+ /* Check if endpoint already has a c67x00_ep_data struct allocated */
+ if (hep->hcpriv) {
+ ep_data = hep->hcpriv;
+ if (frame_after(c67x00->current_frame, ep_data->next_frame))
+ ep_data->next_frame =
+ frame_add(c67x00->current_frame, 1);
+ return hep->hcpriv;
+ }
+
+ /* Allocate and initialize a new c67x00 endpoint data structure */
+ ep_data = kzalloc(sizeof(*ep_data), GFP_ATOMIC);
+ if (!ep_data)
+ return NULL;
+
+ INIT_LIST_HEAD(&ep_data->queue);
+ INIT_LIST_HEAD(&ep_data->node);
+ ep_data->hep = hep;
+
+ /* hold a reference to udev as long as this endpoint lives,
+ * this is needed to possibly fix the data toggle */
+ ep_data->dev = usb_get_dev(urb->dev);
+ hep->hcpriv = ep_data;
+
+ /* For ISOC and INT endpoints, start ASAP: */
+ ep_data->next_frame = frame_add(c67x00->current_frame, 1);
+
+ /* Add the endpoint data to one of the pipe lists; must be added
+ in order of endpoint address */
+ type = usb_pipetype(urb->pipe);
+ if (list_empty(&ep_data->node)) {
+ list_add(&ep_data->node, &c67x00->list[type]);
+ } else {
+ struct c67x00_ep_data *prev;
+
+ list_for_each_entry(prev, &c67x00->list[type], node) {
+ if (prev->hep->desc.bEndpointAddress >
+ hep->desc.bEndpointAddress) {
+ list_add(&ep_data->node, prev->node.prev);
+ break;
+ }
+ }
+ }
+
+ return ep_data;
+}
+
+static int c67x00_ep_data_free(struct usb_host_endpoint *hep)
+{
+ struct c67x00_ep_data *ep_data = hep->hcpriv;
+
+ if (!ep_data)
+ return 0;
+
+ if (!list_empty(&ep_data->queue))
+ return -EBUSY;
+
+ usb_put_dev(ep_data->dev);
+ list_del(&ep_data->queue);
+ list_del(&ep_data->node);
+
+ kfree(ep_data);
+ hep->hcpriv = NULL;
+
+ return 0;
+}
+
+void c67x00_endpoint_disable(struct usb_hcd *hcd, struct usb_host_endpoint *ep)
+{
+ struct c67x00_hcd *c67x00 = hcd_to_c67x00_hcd(hcd);
+ unsigned long flags;
+
+ if (!list_empty(&ep->urb_list))
+ dev_warn(c67x00_hcd_dev(c67x00), "error: urb list not empty\n");
+
+ spin_lock_irqsave(&c67x00->lock, flags);
+
+ /* loop waiting for all transfers in the endpoint queue to complete */
+ while (c67x00_ep_data_free(ep)) {
+ /* Drop the lock so we can sleep waiting for the hardware */
+ spin_unlock_irqrestore(&c67x00->lock, flags);
+
+ /* it could happen that we reinitialize this completion, while
+ * somebody was waiting for that completion. The timeout and
+ * while loop handle such cases, but this might be improved */
+ INIT_COMPLETION(c67x00->endpoint_disable);
+ c67x00_sched_kick(c67x00);
+ wait_for_completion_timeout(&c67x00->endpoint_disable, 1 * HZ);
+
+ spin_lock_irqsave(&c67x00->lock, flags);
+ }
+
+ spin_unlock_irqrestore(&c67x00->lock, flags);
+}
+
+/* -------------------------------------------------------------------------- */
+
+static inline int get_root_port(struct usb_device *dev)
+{
+ while (dev->parent->parent)
+ dev = dev->parent;
+ return dev->portnum;
+}
+
+int c67x00_urb_enqueue(struct usb_hcd *hcd,
+ struct urb *urb, gfp_t mem_flags)
+{
+ int ret;
+ unsigned long flags;
+ struct c67x00_urb_priv *urbp;
+ struct c67x00_hcd *c67x00 = hcd_to_c67x00_hcd(hcd);
+ int port = get_root_port(urb->dev)-1;
+
+ spin_lock_irqsave(&c67x00->lock, flags);
+
+ /* Make sure host controller is running */
+ if (!HC_IS_RUNNING(hcd->state)) {
+ ret = -ENODEV;
+ goto err_not_linked;
+ }
+
+ ret = usb_hcd_link_urb_to_ep(hcd, urb);
+ if (ret)
+ goto err_not_linked;
+
+ /* Allocate and initialize urb private data */
+ urbp = kzalloc(sizeof(*urbp), mem_flags);
+ if (!urbp) {
+ ret = -ENOMEM;
+ goto err_urbp;
+ }
+
+ INIT_LIST_HEAD(&urbp->hep_node);
+ urbp->urb = urb;
+ urbp->port = port;
+
+ urbp->ep_data = c67x00_ep_data_alloc(c67x00, urb);
+
+ if (!urbp->ep_data) {
+ ret = -ENOMEM;
+ goto err_epdata;
+ }
+
+ /* TODO claim bandwidth with usb_claim_bandwidth?
+ * also release it somewhere! */
+
+ urb->hcpriv = urbp;
+
+ urb->actual_length = 0; /* Nothing received/transmitted yet */
+
+ switch (usb_pipetype(urb->pipe)) {
+ case PIPE_CONTROL:
+ urb->interval = SETUP_STAGE;
+ break;
+ case PIPE_INTERRUPT:
+ break;
+ case PIPE_BULK:
+ break;
+ case PIPE_ISOCHRONOUS:
+ if (c67x00->urb_iso_count == 0)
+ c67x00->max_frame_bw = MAX_FRAME_BW_ISO;
+ c67x00->urb_iso_count++;
+ /* Assume always URB_ISO_ASAP, FIXME */
+ if (list_empty(&urbp->ep_data->queue))
+ urb->start_frame = urbp->ep_data->next_frame;
+ else {
+ /* Go right after the last one */
+ struct urb *last_urb;
+
+ last_urb = list_entry(urbp->ep_data->queue.prev,
+ struct c67x00_urb_priv,
+ hep_node)->urb;
+ urb->start_frame =
+ frame_add(last_urb->start_frame,
+ last_urb->number_of_packets *
+ last_urb->interval);
+ }
+ urbp->cnt = 0;
+ break;
+ }
+
+ /* Add the URB to the endpoint queue */
+ list_add_tail(&urbp->hep_node, &urbp->ep_data->queue);
+
+ /* If this is the only URB, kick start the controller */
+ if (!c67x00->urb_count++)
+ c67x00_ll_hpi_enable_sofeop(c67x00->sie);
+
+ c67x00_sched_kick(c67x00);
+ spin_unlock_irqrestore(&c67x00->lock, flags);
+
+ return 0;
+
+err_epdata:
+ kfree(urbp);
+err_urbp:
+ usb_hcd_unlink_urb_from_ep(hcd, urb);
+err_not_linked:
+ spin_unlock_irqrestore(&c67x00->lock, flags);
+
+ return ret;
+}
+
+int c67x00_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
+{
+ struct c67x00_hcd *c67x00 = hcd_to_c67x00_hcd(hcd);
+ unsigned long flags;
+ int rc;
+
+ spin_lock_irqsave(&c67x00->lock, flags);
+ rc = usb_hcd_check_unlink_urb(hcd, urb, status);
+ if (rc)
+ goto done;
+
+ c67x00_release_urb(c67x00, urb);
+ usb_hcd_unlink_urb_from_ep(hcd, urb);
+ spin_unlock_irqrestore(&c67x00->lock, flags);
+
+ usb_hcd_giveback_urb(hcd, urb, status);
+
+ return 0;
+
+ done:
+ spin_unlock_irqrestore(&c67x00->lock, flags);
+ return rc;
+}
+
+/* -------------------------------------------------------------------------- */
+
+/*
+ * pre: urb != NULL and c67x00 locked, urb unlocked
+ */
+static inline void
+c67x00_giveback_urb(struct c67x00_hcd *c67x00, struct urb *urb, int status)
+{
+ struct c67x00_urb_priv *urbp;
+
+ if (!urb)
+ return;
+
+ urbp = urb->hcpriv;
+ urbp->status = status;
+
+ list_del_init(&urbp->hep_node);
+ list_add_tail(&urbp->hep_node, &c67x00->done_list);
+ tasklet_schedule(&c67x00->done_tasklet);
+}
+
+/* -------------------------------------------------------------------------- */
+
+static int c67x00_claim_frame_bw(struct c67x00_hcd *c67x00, struct urb *urb,
+ int len, int periodic)
+{
+ struct c67x00_urb_priv *urbp = urb->hcpriv;
+ int bit_time;
+
+ /* According to the C67x00 BIOS user manual, page 3-18,19, the
+ * following calculations provide the full speed bit times for
+ * a transaction.
+ *
+ * FS(in) = 112.5 + 9.36*BC + HOST_DELAY
+ * FS(in,iso) = 90.5 + 9.36*BC + HOST_DELAY
+ * FS(out) = 112.5 + 9.36*BC + HOST_DELAY
+ * FS(out,iso) = 78.4 + 9.36*BC + HOST_DELAY
+ * LS(in) = 802.4 + 75.78*BC + HOST_DELAY
+ * LS(out) = 802.6 + 74.67*BC + HOST_DELAY
+ *
+ * HOST_DELAY == 106 for the c67200 and c67300.
+ */
+
+ /* make calculations in 1/100 bit times to maintain resolution */
+ if (urbp->ep_data->dev->speed == USB_SPEED_LOW) {
+ /* Low speed pipe */
+ if (usb_pipein(urb->pipe))
+ bit_time = 80240 + 7578*len;
+ else
+ bit_time = 80260 + 7467*len;
+ } else {
+ /* FS pipes */
+ if (usb_pipeisoc(urb->pipe))
+ bit_time = usb_pipein(urb->pipe) ? 9050 : 7840;
+ else
+ bit_time = 11250;
+ bit_time += 936*len;
+ }
+
+ /* Scale back down to integer bit times. Use a host delay of 106.
+ * (this is the only place it is used) */
+ bit_time = ((bit_time+50) / 100) + 106;
+
+ if (unlikely(bit_time + c67x00->bandwidth_allocated >=
+ c67x00->max_frame_bw))
+ return -EMSGSIZE;
+
+ if (unlikely(c67x00->next_td_addr + CY_TD_SIZE >=
+ c67x00->td_base_addr + SIE_TD_SIZE))
+ return -EMSGSIZE;
+
+ if (unlikely(c67x00->next_buf_addr + len >=
+ c67x00->buf_base_addr + SIE_TD_BUF_SIZE))
+ return -EMSGSIZE;
+
+ if (periodic) {
+ if (unlikely(bit_time + c67x00->periodic_bw_allocated >=
+ MAX_PERIODIC_BW(c67x00->max_frame_bw)))
+ return -EMSGSIZE;
+ c67x00->periodic_bw_allocated += bit_time;
+ }
+
+ c67x00->bandwidth_allocated += bit_time;
+ return 0;
+}
+
+/* -------------------------------------------------------------------------- */
+
+/**
+ * td_addr and buf_addr must be word aligned
+ */
+static int c67x00_create_td(struct c67x00_hcd *c67x00, struct urb *urb,
+ void *data, int len, int pid, int toggle,
+ unsigned long privdata)
+{
+ struct c67x00_td *td;
+ struct c67x00_urb_priv *urbp = urb->hcpriv;
+ const __u8 active_flag = 1, retry_cnt = 1;
+ __u8 cmd = 0;
+ int tt = 0;
+
+ if (c67x00_claim_frame_bw(c67x00, urb, len, usb_pipeisoc(urb->pipe)
+ || usb_pipeint(urb->pipe)))
+ return -EMSGSIZE; /* Not really an error, but expected */
+
+ td = kzalloc(sizeof(*td), GFP_ATOMIC);
+ if (!td)
+ return -ENOMEM;
+
+ td->pipe = urb->pipe;
+ td->ep_data = urbp->ep_data;
+
+ if ((td_udev(td)->speed == USB_SPEED_LOW) &&
+ !(c67x00->low_speed_ports & (1 << urbp->port)))
+ cmd |= PREAMBLE_EN;
+
+ switch (usb_pipetype(td->pipe)) {
+ case PIPE_ISOCHRONOUS:
+ tt = TT_ISOCHRONOUS;
+ cmd |= ISO_EN;
+ break;
+ case PIPE_CONTROL:
+ tt = TT_CONTROL;
+ break;
+ case PIPE_BULK:
+ tt = TT_BULK;
+ break;
+ case PIPE_INTERRUPT:
+ tt = TT_INTERRUPT;
+ break;
+ }
+
+ if (toggle)
+ cmd |= SEQ_SEL;
+
+ cmd |= ARM_EN;
+
+ /* SW part */
+ td->td_addr = c67x00->next_td_addr;
+ c67x00->next_td_addr = c67x00->next_td_addr + CY_TD_SIZE;
+
+ /* HW part */
+ td->ly_base_addr = __cpu_to_le16(c67x00->next_buf_addr);
+ td->port_length = __cpu_to_le16((c67x00->sie->sie_num << 15) |
+ (urbp->port << 14) | (len & 0x3FF));
+ td->pid_ep = ((pid & 0xF) << TD_PIDEP_OFFSET) |
+ (usb_pipeendpoint(td->pipe) & 0xF);
+ td->dev_addr = usb_pipedevice(td->pipe) & 0x7F;
+ td->ctrl_reg = cmd;
+ td->status = 0;
+ td->retry_cnt = (tt << TT_OFFSET) | (active_flag << 4) | retry_cnt;
+ td->residue = 0;
+ td->next_td_addr = __cpu_to_le16(c67x00->next_td_addr);
+
+ /* SW part */
+ td->data = data;
+ td->urb = urb;
+ td->privdata = privdata;
+
+ c67x00->next_buf_addr += (len + 1) & ~0x01; /* properly align */
+
+ list_add_tail(&td->td_list, &c67x00->td_list);
+ return 0;
+}
+
+static inline void c67x00_release_td(struct c67x00_td *td)
+{
+ list_del_init(&td->td_list);
+ kfree(td);
+}
+
+/* -------------------------------------------------------------------------- */
+
+static int c67x00_add_data_urb(struct c67x00_hcd *c67x00, struct urb *urb)
+{
+ int remaining;
+ int toggle;
+ int pid;
+ int ret = 0;
+ int maxps;
+ int need_empty;
+
+ toggle = usb_gettoggle(urb->dev, usb_pipeendpoint(urb->pipe),
+ usb_pipeout(urb->pipe));
+ remaining = urb->transfer_buffer_length - urb->actual_length;
+
+ maxps = usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe));
+
+ need_empty = (urb->transfer_flags & URB_ZERO_PACKET) &&
+ usb_pipeout(urb->pipe) && !(remaining % maxps);
+
+ while (remaining || need_empty) {
+ int len;
+ char *td_buf;
+
+ len = (remaining > maxps) ? maxps : remaining;
+ if (!len)
+ need_empty = 0;
+
+ pid = usb_pipeout(urb->pipe) ? USB_PID_OUT : USB_PID_IN;
+ td_buf = urb->transfer_buffer + urb->transfer_buffer_length -
+ remaining;
+ ret = c67x00_create_td(c67x00, urb, td_buf, len, pid, toggle,
+ DATA_STAGE);
+ if (ret)
+ return ret; /* td wasn't created */
+
+ toggle ^= 1;
+ remaining -= len;
+ if (usb_pipecontrol(urb->pipe))
+ break;
+ }
+
+ return 0;
+}
+
+/**
+ * return 0 in case more bandwidth is available, else errorcode
+ */
+static int c67x00_add_ctrl_urb(struct c67x00_hcd *c67x00, struct urb *urb)
+{
+ int ret;
+ int pid;
+
+ switch (urb->interval) {
+ default:
+ case SETUP_STAGE:
+ ret = c67x00_create_td(c67x00, urb, urb->setup_packet,
+ 8, USB_PID_SETUP, 0, SETUP_STAGE);
+ if (ret)
+ return ret;
+ urb->interval = SETUP_STAGE;
+ usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
+ usb_pipeout(urb->pipe), 1);
+ break;
+ case DATA_STAGE:
+ if (urb->transfer_buffer_length) {
+ ret = c67x00_add_data_urb(c67x00, urb);
+ if (ret)
+ return ret;
+ break;
+ } /* else fallthrough */
+ case STATUS_STAGE:
+ pid = !usb_pipeout(urb->pipe) ? USB_PID_OUT : USB_PID_IN;
+ ret = c67x00_create_td(c67x00, urb, NULL, 0, pid, 1,
+ STATUS_STAGE);
+ if (ret)
+ return ret;
+ break;
+ }
+
+ return 0;
+}
+
+/*
+ * return 0 in case more bandwidth is available, else errorcode
+ */
+static int c67x00_add_int_urb(struct c67x00_hcd *c67x00, struct urb *urb)
+{
+ struct c67x00_urb_priv *urbp = urb->hcpriv;
+
+ if (frame_after_eq(c67x00->current_frame, urbp->ep_data->next_frame)) {
+ urbp->ep_data->next_frame =
+ frame_add(urbp->ep_data->next_frame, urb->interval);
+ return c67x00_add_data_urb(c67x00, urb);
+ }
+ return 0;
+}
+
+static int c67x00_add_iso_urb(struct c67x00_hcd *c67x00, struct urb *urb)
+{
+ struct c67x00_urb_priv *urbp = urb->hcpriv;
+
+ if (frame_after_eq(c67x00->current_frame, urbp->ep_data->next_frame)) {
+ char *td_buf;
+ int len, pid, ret;
+
+ BUG_ON(urbp->cnt >= urb->number_of_packets);
+
+ td_buf = urb->transfer_buffer +
+ urb->iso_frame_desc[urbp->cnt].offset;
+ len = urb->iso_frame_desc[urbp->cnt].length;
+ pid = usb_pipeout(urb->pipe) ? USB_PID_OUT : USB_PID_IN;
+
+ ret = c67x00_create_td(c67x00, urb, td_buf, len, pid, 0,
+ urbp->cnt);
+ if (ret) {
+ printk(KERN_DEBUG "create failed: %d\n", ret);
+ urb->iso_frame_desc[urbp->cnt].actual_length = 0;
+ urb->iso_frame_desc[urbp->cnt].status = ret;
+ if (urbp->cnt + 1 == urb->number_of_packets)
+ c67x00_giveback_urb(c67x00, urb, 0);
+ }
+
+ urbp->ep_data->next_frame =
+ frame_add(urbp->ep_data->next_frame, urb->interval);
+ urbp->cnt++;
+ }
+ return 0;
+}
+
+/* -------------------------------------------------------------------------- */
+
+static void c67x00_fill_from_list(struct c67x00_hcd *c67x00, int type,
+ int (*add)(struct c67x00_hcd *, struct urb *))
+{
+ struct c67x00_ep_data *ep_data;
+ struct urb *urb;
+
+ /* traverse every endpoint on the list */
+ list_for_each_entry(ep_data, &c67x00->list[type], node) {
+ if (!list_empty(&ep_data->queue)) {
+ /* and add the first urb */
+ /* isochronous transfer rely on this */
+ urb = list_entry(ep_data->queue.next,
+ struct c67x00_urb_priv,
+ hep_node)->urb;
+ add(c67x00, urb);
+ }
+ }
+}
+
+static void c67x00_fill_frame(struct c67x00_hcd *c67x00)
+{
+ struct c67x00_td *td, *ttd;
+
+ /* Check if we can proceed */
+ if (!list_empty(&c67x00->td_list)) {
+ dev_warn(c67x00_hcd_dev(c67x00),
+ "TD list not empty! This should not happen!\n");
+ list_for_each_entry_safe(td, ttd, &c67x00->td_list, td_list) {
+ dbg_td(c67x00, td, "Unprocessed td");
+ c67x00_release_td(td);
+ }
+ }
+
+ /* Reinitialize variables */
+ c67x00->bandwidth_allocated = 0;
+ c67x00->periodic_bw_allocated = 0;
+
+ c67x00->next_td_addr = c67x00->td_base_addr;
+ c67x00->next_buf_addr = c67x00->buf_base_addr;
+
+ /* Fill the list */
+ c67x00_fill_from_list(c67x00, PIPE_ISOCHRONOUS, c67x00_add_iso_urb);
+ c67x00_fill_from_list(c67x00, PIPE_INTERRUPT, c67x00_add_int_urb);
+ c67x00_fill_from_list(c67x00, PIPE_CONTROL, c67x00_add_ctrl_urb);
+ c67x00_fill_from_list(c67x00, PIPE_BULK, c67x00_add_data_urb);
+}
+
+/* -------------------------------------------------------------------------- */
+
+/**
+ * Get TD from C67X00
+ */
+static inline void
+c67x00_parse_td(struct c67x00_hcd *c67x00, struct c67x00_td *td)
+{
+ c67x00_ll_read_mem_le16(c67x00->sie->dev,
+ td->td_addr, td, CY_TD_SIZE);
+
+ if (usb_pipein(td->pipe) && td_actual_bytes(td))
+ c67x00_ll_read_mem_le16(c67x00->sie->dev, td_ly_base_addr(td),
+ td->data, td_actual_bytes(td));
+}
+
+static int c67x00_td_to_error(struct c67x00_hcd *c67x00, struct c67x00_td *td)
+{
+ if (td->status & TD_STATUSMASK_ERR) {
+ dbg_td(c67x00, td, "ERROR_FLAG");
+ return -EILSEQ;
+ }
+ if (td->status & TD_STATUSMASK_STALL) {
+ /* dbg_td(c67x00, td, "STALL"); */
+ return -EPIPE;
+ }
+ if (td->status & TD_STATUSMASK_TMOUT) {
+ dbg_td(c67x00, td, "TIMEOUT");
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
+
+static inline int c67x00_end_of_data(struct c67x00_td *td)
+{
+ int maxps, need_empty, remaining;
+ struct urb *urb = td->urb;
+ int act_bytes;
+
+ act_bytes = td_actual_bytes(td);
+
+ if (unlikely(!act_bytes))
+ return 1; /* This was an empty packet */
+
+ maxps = usb_maxpacket(td_udev(td), td->pipe, usb_pipeout(td->pipe));
+
+ if (unlikely(act_bytes < maxps))
+ return 1; /* Smaller then full packet */
+
+ remaining = urb->transfer_buffer_length - urb->actual_length;
+ need_empty = (urb->transfer_flags & URB_ZERO_PACKET) &&
+ usb_pipeout(urb->pipe) && !(remaining % maxps);
+
+ if (unlikely(!remaining && !need_empty))
+ return 1;
+
+ return 0;
+}
+
+/* -------------------------------------------------------------------------- */
+
+/* Remove all td's from the list which come
+ * after last_td and are meant for the same pipe.
+ * This is used when a short packet has occured */
+static inline void c67x00_clear_pipe(struct c67x00_hcd *c67x00,
+ struct c67x00_td *last_td)
+{
+ struct c67x00_td *td, *tmp;
+ td = last_td;
+ tmp = last_td;
+ while (td->td_list.next != &c67x00->td_list) {
+ td = list_entry(td->td_list.next, struct c67x00_td, td_list);
+ if (td->pipe == last_td->pipe) {
+ c67x00_release_td(td);
+ td = tmp;
+ }
+ tmp = td;
+ }
+}
+
+/* -------------------------------------------------------------------------- */
+
+static void c67x00_handle_successful_td(struct c67x00_hcd *c67x00,
+ struct c67x00_td *td)
+{
+ struct urb *urb = td->urb;
+
+ if (!urb)
+ return;
+
+ urb->actual_length += td_actual_bytes(td);
+
+ switch (usb_pipetype(td->pipe)) {
+ /* isochronous tds are handled separately */
+ case PIPE_CONTROL:
+ switch (td->privdata) {
+ case SETUP_STAGE:
+ urb->interval =
+ urb->transfer_buffer_length ?
+ DATA_STAGE : STATUS_STAGE;
+ /* Don't count setup_packet with normal data: */
+ urb->actual_length = 0;
+ break;
+
+ case DATA_STAGE:
+ if (c67x00_end_of_data(td)) {
+ urb->interval = STATUS_STAGE;
+ c67x00_clear_pipe(c67x00, td);
+ }
+ break;
+
+ case STATUS_STAGE:
+ urb->interval = 0;
+ c67x00_giveback_urb(c67x00, urb, 0);
+ break;
+ }
+ break;
+
+ case PIPE_INTERRUPT:
+ case PIPE_BULK:
+ if (unlikely(c67x00_end_of_data(td))) {
+ c67x00_clear_pipe(c67x00, td);
+ c67x00_giveback_urb(c67x00, urb, 0);
+ }
+ break;
+ }
+}
+
+static void c67x00_handle_isoc(struct c67x00_hcd *c67x00, struct c67x00_td *td)
+{
+ struct urb *urb = td->urb;
+ struct c67x00_urb_priv *urbp;
+ int cnt;
+
+ if (!urb)
+ return;
+
+ urbp = urb->hcpriv;
+ cnt = td->privdata;
+
+ if (td->status & TD_ERROR_MASK)
+ urb->error_count++;
+
+ urb->iso_frame_desc[cnt].actual_length = td_actual_bytes(td);
+ urb->iso_frame_desc[cnt].status = c67x00_td_to_error(c67x00, td);
+ if (cnt + 1 == urb->number_of_packets) /* Last packet */
+ c67x00_giveback_urb(c67x00, urb, 0);
+}
+
+/* -------------------------------------------------------------------------- */
+
+/**
+ * c67x00_check_td_list - handle tds which have been processed by the c67x00
+ * pre: current_td == 0
+ */
+static inline void c67x00_check_td_list(struct c67x00_hcd *c67x00)
+{
+ struct c67x00_td *td, *tmp;
+ struct urb *urb;
+ int ack_ok;
+ int clear_endpoint;
+
+ list_for_each_entry_safe(td, tmp, &c67x00->td_list, td_list) {
+ /* get the TD */
+ c67x00_parse_td(c67x00, td);
+ urb = td->urb; /* urb can be NULL! */
+ ack_ok = 0;
+ clear_endpoint = 1;
+
+ /* Handle isochronous transfers separately */
+ if (usb_pipeisoc(td->pipe)) {
+ clear_endpoint = 0;
+ c67x00_handle_isoc(c67x00, td);
+ goto cont;
+ }
+
+ /* When an error occurs, all td's for that pipe go into an
+ * inactive state. This state matches successful transfers so
+ * we must make sure not to service them. */
+ if (td->status & TD_ERROR_MASK) {
+ c67x00_giveback_urb(c67x00, urb,
+ c67x00_td_to_error(c67x00, td));
+ goto cont;
+ }
+
+ if ((td->status & TD_STATUSMASK_NAK) || !td_sequence_ok(td) ||
+ !td_acked(td))
+ goto cont;
+
+ /* Sequence ok and acked, don't need to fix toggle */
+ ack_ok = 1;
+
+ if (unlikely(td->status & TD_STATUSMASK_OVF)) {
+ if (td_residue(td) & TD_RESIDUE_OVERFLOW) {
+ /* Overflow */
+ c67x00_giveback_urb(c67x00, urb, -EOVERFLOW);
+ goto cont;
+ }
+ }
+
+ clear_endpoint = 0;
+ c67x00_handle_successful_td(c67x00, td);
+
+ cont:
+ if (clear_endpoint)
+ c67x00_clear_pipe(c67x00, td);
+ if (ack_ok)
+ usb_settoggle(td_udev(td), usb_pipeendpoint(td->pipe),
+ usb_pipeout(td->pipe),
+ !(td->ctrl_reg & SEQ_SEL));
+ /* next in list could have been removed, due to clear_pipe! */
+ tmp = list_entry(td->td_list.next, typeof(*td), td_list);
+ c67x00_release_td(td);
+ }
+}
+
+/* -------------------------------------------------------------------------- */
+
+static inline int c67x00_all_tds_processed(struct c67x00_hcd *c67x00)
+{
+ /* If all tds are processed, we can check the previous frame (if
+ * there was any) and start our next frame.
+ */
+ return !c67x00_ll_husb_get_current_td(c67x00->sie);
+}
+
+/**
+ * Send td to C67X00
+ */
+static void c67x00_send_td(struct c67x00_hcd *c67x00, struct c67x00_td *td)
+{
+ int len = td_length(td);
+
+ if (len && ((td->pid_ep & TD_PIDEPMASK_PID) != TD_PID_IN))
+ c67x00_ll_write_mem_le16(c67x00->sie->dev, td_ly_base_addr(td),
+ td->data, len);
+
+ c67x00_ll_write_mem_le16(c67x00->sie->dev,
+ td->td_addr, td, CY_TD_SIZE);
+}
+
+static void c67x00_send_frame(struct c67x00_hcd *c67x00)
+{
+ struct c67x00_td *td;
+
+ if (list_empty(&c67x00->td_list))
+ dev_warn(c67x00_hcd_dev(c67x00),
+ "%s: td list should not be empty here!\n",
+ __FUNCTION__);
+
+ list_for_each_entry(td, &c67x00->td_list, td_list) {
+ if (td->td_list.next == &c67x00->td_list)
+ td->next_td_addr = 0; /* Last td in list */
+
+ c67x00_send_td(c67x00, td);
+ }
+
+ c67x00_ll_husb_set_current_td(c67x00->sie, c67x00->td_base_addr);
+}
+
+/* -------------------------------------------------------------------------- */
+
+/**
+ * c67x00_do_work - Schedulers state machine
+ */
+static void c67x00_do_work(struct c67x00_hcd *c67x00)
+{
+ spin_lock(&c67x00->lock);
+ /* Make sure all tds are processed */
+ if (!c67x00_all_tds_processed(c67x00))
+ goto out;
+
+ c67x00_check_td_list(c67x00);
+
+ /* no td's are being processed (current == 0)
+ * and all have been "checked" */
+ complete(&c67x00->endpoint_disable);
+
+ if (!list_empty(&c67x00->td_list))
+ goto out;
+
+ c67x00->current_frame = c67x00_get_current_frame_number(c67x00);
+ if (c67x00->current_frame == c67x00->last_frame)
+ goto out; /* Don't send tds in same frame */
+ c67x00->last_frame = c67x00->current_frame;
+
+ /* If no urbs are scheduled, our work is done */
+ if (!c67x00->urb_count) {
+ c67x00_ll_hpi_disable_sofeop(c67x00->sie);
+ goto out;
+ }
+
+ c67x00_fill_frame(c67x00);
+ if (!list_empty(&c67x00->td_list))
+ /* TD's have been added to the frame */
+ c67x00_send_frame(c67x00);
+
+ out:
+ spin_unlock(&c67x00->lock);
+}
+
+/* -------------------------------------------------------------------------- */
+
+static void c67x00_sched_tasklet(unsigned long __c67x00)
+{
+ struct c67x00_hcd *c67x00 = (struct c67x00_hcd *)__c67x00;
+ c67x00_do_work(c67x00);
+}
+
+static void c67x00_sched_done(unsigned long __c67x00)
+{
+ struct c67x00_hcd *c67x00 = (struct c67x00_hcd *)__c67x00;
+ struct c67x00_urb_priv *urbp, *tmp;
+ struct urb *urb;
+
+ spin_lock(&c67x00->lock);
+
+ /* Loop over the done list and give back all the urbs */
+ list_for_each_entry_safe(urbp, tmp, &c67x00->done_list, hep_node) {
+ urb = urbp->urb;
+ c67x00_release_urb(c67x00, urb);
+ if (!usb_hcd_check_unlink_urb(c67x00_hcd_to_hcd(c67x00),
+ urb, urbp->status)) {
+ usb_hcd_unlink_urb_from_ep(c67x00_hcd_to_hcd(c67x00),
+ urb);
+ spin_unlock(&c67x00->lock);
+ usb_hcd_giveback_urb(c67x00_hcd_to_hcd(c67x00), urb,
+ urbp->status);
+ spin_lock(&c67x00->lock);
+ }
+ }
+ spin_unlock(&c67x00->lock);
+}
+
+void c67x00_sched_kick(struct c67x00_hcd *c67x00)
+{
+ tasklet_hi_schedule(&c67x00->tasklet);
+}
+
+int c67x00_sched_start_scheduler(struct c67x00_hcd *c67x00)
+{
+ tasklet_init(&c67x00->tasklet, c67x00_sched_tasklet,
+ (unsigned long)c67x00);
+ tasklet_init(&c67x00->done_tasklet, c67x00_sched_done,
+ (unsigned long)c67x00);
+ return 0;
+}
+
+void c67x00_sched_stop_scheduler(struct c67x00_hcd *c67x00)
+{
+ tasklet_kill(&c67x00->tasklet);
+ tasklet_kill(&c67x00->done_tasklet);
+}
Index: linux-2.6/drivers/usb/c67x00/Makefile
===================================================================
--- /dev/null
+++ linux-2.6/drivers/usb/c67x00/Makefile
@@ -0,0 +1,11 @@
+#
+# Makefile for Cypress C67X00 USB Controller
+#
+
+ifeq ($(CONFIG_USB_DEBUG),y)
+ EXTRA_CFLAGS += -DDEBUG
+endif
+
+obj-$(CONFIG_USB_C67X00_HCD) += c67x00.o
+
+c67x00-objs := c67x00-drv.o c67x00-ll-hpi.o c67x00-hcd.o c67x00-sched.o
Index: linux-2.6/drivers/usb/Makefile
===================================================================
--- linux-2.6.orig/drivers/usb/Makefile
+++ linux-2.6/drivers/usb/Makefile
@@ -17,6 +17,8 @@
obj-$(CONFIG_USB_U132_HCD) += host/
obj-$(CONFIG_USB_R8A66597_HCD) += host/
+obj-$(CONFIG_USB_C67X00_HCD) += c67x00/
+
obj-$(CONFIG_USB_ACM) += class/
obj-$(CONFIG_USB_PRINTER) += class/
Index: linux-2.6/drivers/usb/c67x00/c67x00-drv.c
===================================================================
--- linux-2.6.orig/drivers/usb/c67x00/c67x00-drv.c
+++ linux-2.6/drivers/usb/c67x00/c67x00-drv.c
@@ -41,6 +41,7 @@
#include <asm/io.h>
#include "c67x00.h"
+#include "c67x00-hcd.h"
static void c67x00_probe_sie(struct c67x00_sie *sie,
struct c67x00_device *dev, int sie_num)
@@ -51,6 +52,10 @@
sie->mode = c67x00_sie_config(dev->pdata->sie_config, sie_num);
switch (sie->mode) {
+ case C67X00_SIE_HOST:
+ c67x00_hcd_probe(sie);
+ break;
+
case C67X00_SIE_UNUSED:
dev_info(sie_dev(sie),
"Not using SIE %d as requested\n", sie->sie_num);
@@ -66,6 +71,14 @@
static void c67x00_remove_sie(struct c67x00_sie *sie)
{
+ switch (sie->mode) {
+ case C67X00_SIE_HOST:
+ c67x00_hcd_remove(sie);
+ break;
+
+ default:
+ break;
+ }
}
Index: linux-2.6/drivers/usb/c67x00/c67x00.h
===================================================================
--- linux-2.6.orig/drivers/usb/c67x00/c67x00.h
+++ linux-2.6/drivers/usb/c67x00/c67x00.h
@@ -275,6 +275,15 @@
void c67x00_ll_read_mem_le16(struct c67x00_device *dev, u16 addr,
void *data, int len);
+/* Host specific functions */
+void c67x00_ll_set_husb_eot(struct c67x00_device *dev, u16 value);
+void c67x00_ll_husb_reset(struct c67x00_sie *sie, int port);
+void c67x00_ll_husb_set_current_td(struct c67x00_sie *sie, u16 addr);
+u16 c67x00_ll_husb_get_current_td(struct c67x00_sie *sie);
+u16 c67x00_ll_husb_get_frame(struct c67x00_sie *sie);
+void c67x00_ll_husb_init_host_port(struct c67x00_sie *sie);
+void c67x00_ll_husb_reset_port(struct c67x00_sie *sie, int port);
+
/* Called by c67x00_irq to handle lcp interrupts */
void c67x00_ll_irq(struct c67x00_device *dev, u16 int_status);
Index: linux-2.6/drivers/usb/c67x00/c67x00-ll-hpi.c
===================================================================
--- linux-2.6.orig/drivers/usb/c67x00/c67x00-ll-hpi.c
+++ linux-2.6/drivers/usb/c67x00/c67x00-ll-hpi.c
@@ -301,6 +301,81 @@
}
/* -------------------------------------------------------------------------- */
+/* Host specific functions */
+
+void c67x00_ll_set_husb_eot(struct c67x00_device *dev, u16 value)
+{
+ mutex_lock(&dev->hpi.lcp.mutex);
+ hpi_write_word(dev, HUSB_pEOT, value);
+ mutex_unlock(&dev->hpi.lcp.mutex);
+}
+
+static inline void c67x00_ll_husb_sie_init(struct c67x00_sie *sie)
+{
+ struct c67x00_device *dev = sie->dev;
+ struct c67x00_lcp_int_data data;
+ int rc;
+
+ rc = c67x00_comm_exec_int(dev, HUSB_SIE_INIT_INT(sie->sie_num), &data);
+ BUG_ON(rc); /* No return path for error code; crash spectacularly */
+}
+
+void c67x00_ll_husb_reset(struct c67x00_sie *sie, int port)
+{
+ struct c67x00_device *dev = sie->dev;
+ struct c67x00_lcp_int_data data;
+ int rc;
+
+ data.regs[0] = 50; /* Reset USB port for 50ms */
+ data.regs[1] = port | (sie->sie_num << 1);
+ rc = c67x00_comm_exec_int(dev, HUSB_RESET_INT, &data);
+ BUG_ON(rc); /* No return path for error code; crash spectacularly */
+}
+
+void c67x00_ll_husb_set_current_td(struct c67x00_sie *sie, u16 addr)
+{
+ hpi_write_word(sie->dev, HUSB_SIE_pCurrentTDPtr(sie->sie_num), addr);
+}
+
+u16 c67x00_ll_husb_get_current_td(struct c67x00_sie *sie)
+{
+ return hpi_read_word(sie->dev, HUSB_SIE_pCurrentTDPtr(sie->sie_num));
+}
+
+u16 c67x00_ll_husb_get_frame(struct c67x00_sie *sie)
+{
+ return hpi_read_word(sie->dev, HOST_FRAME_REG(sie->sie_num));
+}
+
+void c67x00_ll_husb_init_host_port(struct c67x00_sie *sie)
+{
+ /* Set port into host mode */
+ hpi_set_bits(sie->dev, USB_CTL_REG(sie->sie_num), HOST_MODE);
+ c67x00_ll_husb_sie_init(sie);
+ /* Clear interrupts */
+ c67x00_ll_usb_clear_status(sie, HOST_STAT_MASK);
+ /* Check */
+ if (!(hpi_read_word(sie->dev, USB_CTL_REG(sie->sie_num)) & HOST_MODE))
+ dev_warn(sie_dev(sie),
+ "SIE %d not set to host mode\n", sie->sie_num);
+}
+
+void c67x00_ll_husb_reset_port(struct c67x00_sie *sie, int port)
+{
+ /* Clear connect change */
+ c67x00_ll_usb_clear_status(sie, PORT_CONNECT_CHANGE(port));
+
+ /* Enable interrupts */
+ hpi_set_bits(sie->dev, HPI_IRQ_ROUTING_REG,
+ SOFEOP_TO_CPU_EN(sie->sie_num));
+ hpi_set_bits(sie->dev, HOST_IRQ_EN_REG(sie->sie_num),
+ SOF_EOP_IRQ_EN | DONE_IRQ_EN);
+
+ /* Enable pull down transistors */
+ hpi_set_bits(sie->dev, USB_CTL_REG(sie->sie_num), PORT_RES_EN(port));
+}
+
+/* -------------------------------------------------------------------------- */
void c67x00_ll_irq(struct c67x00_device *dev, u16 int_status)
{
Index: linux-2.6/drivers/usb/host/Kconfig
===================================================================
--- linux-2.6.orig/drivers/usb/host/Kconfig
+++ linux-2.6/drivers/usb/host/Kconfig
@@ -261,3 +261,15 @@
To compile this driver as a module, choose M here: the
module will be called r8a66597-hcd.
+config USB_C67X00_HCD
+ tristate "Cypress C67x00 HCD support"
+ depends on USB
+ help
+ The Cypress C67x00 (EZ-Host/EZ-OTG) chips are dual-role
+ host/peripheral/OTG USB controllers.
+
+ Enable this option to support this chip in host controller mode.
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called c67x00.
--
Bye, Peter Korsgaard
^ permalink raw reply
* [patch v5 1/4] USB: add Cypress c67x00 low level interface code
From: Peter Korsgaard @ 2008-01-24 14:47 UTC (permalink / raw)
To: dbrownell, linux-usb, linuxppc-dev, grant.likely
In-Reply-To: <20080124144706.041042000@sunsite.dk>
This patch adds the low level support code for the Cypress c67x00 family of
OTG controllers. The low level code is responsible for register access and
implements the software protocol for communicating with the 16bit
microcontroller inside the c67x00 device.
Communication is done over the HPI interface (16bit SRAM-like parallel bus).
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
---
drivers/usb/c67x00/c67x00-ll-hpi.c | 409 +++++++++++++++++++++++++++++++++++++
drivers/usb/c67x00/c67x00.h | 286 +++++++++++++++++++++++++
2 files changed, 695 insertions(+)
Index: linux-2.6/drivers/usb/c67x00/c67x00.h
===================================================================
--- /dev/null
+++ linux-2.6/drivers/usb/c67x00/c67x00.h
@@ -0,0 +1,286 @@
+/*
+ * c67x00.h: Cypress C67X00 USB register and field definitions
+ *
+ * Copyright (C) 2006-2008 Barco N.V.
+ * Derived from the Cypress cy7c67200/300 ezusb linux driver and
+ * based on multiple host controller drivers inside the linux kernel.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA.
+ */
+
+#ifndef _USB_C67X00_H
+#define _USB_C67X00_H
+
+#include <linux/spinlock.h>
+#include <linux/platform_device.h>
+#include <linux/completion.h>
+#include <linux/mutex.h>
+
+/* ---------------------------------------------------------------------
+ * Cypress C67x00 register definitions
+ */
+
+/* Hardware Revision Register */
+#define HW_REV_REG 0xC004
+
+/* General USB registers */
+/* ===================== */
+
+/* USB Control Register */
+#define USB_CTL_REG(x) ((x) ? 0xC0AA : 0xC08A)
+
+#define LOW_SPEED_PORT(x) ((x) ? 0x0800 : 0x0400)
+#define HOST_MODE 0x0200
+#define PORT_RES_EN(x) ((x) ? 0x0100 : 0x0080)
+#define SOF_EOP_EN(x) ((x) ? 0x0002 : 0x0001)
+
+/* USB status register - Notice it has different content in hcd/udc mode */
+#define USB_STAT_REG(x) ((x) ? 0xC0B0 : 0xC090)
+
+#define EP0_IRQ_FLG 0x0001
+#define EP1_IRQ_FLG 0x0002
+#define EP2_IRQ_FLG 0x0004
+#define EP3_IRQ_FLG 0x0008
+#define EP4_IRQ_FLG 0x0010
+#define EP5_IRQ_FLG 0x0020
+#define EP6_IRQ_FLG 0x0040
+#define EP7_IRQ_FLG 0x0080
+#define RESET_IRQ_FLG 0x0100
+#define SOF_EOP_IRQ_FLG 0x0200
+#define ID_IRQ_FLG 0x4000
+#define VBUS_IRQ_FLG 0x8000
+
+/* USB Host only registers */
+/* ======================= */
+
+/* Host n Control Register */
+#define HOST_CTL_REG(x) ((x) ? 0xC0A0 : 0xC080)
+
+#define PREAMBLE_EN 0x0080 /* Preamble enable */
+#define SEQ_SEL 0x0040 /* Data Toggle Sequence Bit Select */
+#define ISO_EN 0x0010 /* Isochronous enable */
+#define ARM_EN 0x0001 /* Arm operation */
+
+/* Host n Interrupt Enable Register */
+#define HOST_IRQ_EN_REG(x) ((x) ? 0xC0AC : 0xC08C)
+
+#define SOF_EOP_IRQ_EN 0x0200 /* SOF/EOP Interrupt Enable */
+#define SOF_EOP_TMOUT_IRQ_EN 0x0800 /* SOF/EOP Timeout Interrupt Enable */
+#define ID_IRQ_EN 0x4000 /* ID interrupt enable */
+#define VBUS_IRQ_EN 0x8000 /* VBUS interrupt enable */
+#define DONE_IRQ_EN 0x0001 /* Done Interrupt Enable */
+
+/* USB status register */
+#define HOST_STAT_MASK 0x02FD
+#define PORT_CONNECT_CHANGE(x) ((x) ? 0x0020 : 0x0010)
+#define PORT_SE0_STATUS(x) ((x) ? 0x0008 : 0x0004)
+
+/* Host Frame Register */
+#define HOST_FRAME_REG(x) ((x) ? 0xC0B6 : 0xC096)
+
+#define HOST_FRAME_MASK 0x07FF
+
+/* USB Peripheral only registers */
+/* ============================= */
+
+/* Device n Port Sel reg */
+#define DEVICE_N_PORT_SEL(x) ((x) ? 0xC0A4 : 0xC084)
+
+/* Device n Interrupt Enable Register */
+#define DEVICE_N_IRQ_EN_REG(x) ((x) ? 0xC0AC : 0xC08C)
+
+#define DEVICE_N_ENDPOINT_N_CTL_REG(dev, ep) ((dev) \
+ ? (0x0280 + (ep << 4)) \
+ : (0x0200 + (ep << 4)))
+#define DEVICE_N_ENDPOINT_N_STAT_REG(dev, ep) ((dev) \
+ ? (0x0286 + (ep << 4)) \
+ : (0x0206 + (ep << 4)))
+
+#define DEVICE_N_ADDRESS(dev) ((dev) ? (0xC0AE) : (0xC08E))
+
+/* HPI registers */
+/* ============= */
+
+/* HPI Status register */
+#define SOFEOP_FLG(x) (1 << ((x) ? 12 : 10))
+#define SIEMSG_FLG(x) (1 << (4 + (x)))
+#define RESET_FLG(x) ((x) ? 0x0200 : 0x0002)
+#define DONE_FLG(x) (1 << (2 + (x)))
+#define RESUME_FLG(x) (1 << (6 + (x)))
+#define MBX_OUT_FLG 0x0001 /* Message out available */
+#define MBX_IN_FLG 0x0100
+#define ID_FLG 0x4000
+#define VBUS_FLG 0x8000
+
+/* Interrupt routing register */
+#define HPI_IRQ_ROUTING_REG 0x0142
+
+#define HPI_SWAP_ENABLE(x) ((x) ? 0x0100 : 0x0001)
+#define RESET_TO_HPI_ENABLE(x) ((x) ? 0x0200 : 0x0002)
+#define DONE_TO_HPI_ENABLE(x) ((x) ? 0x0008 : 0x0004)
+#define RESUME_TO_HPI_ENABLE(x) ((x) ? 0x0080 : 0x0040)
+#define SOFEOP_TO_HPI_EN(x) ((x) ? 0x2000 : 0x0800)
+#define SOFEOP_TO_CPU_EN(x) ((x) ? 0x1000 : 0x0400)
+#define ID_TO_HPI_ENABLE 0x4000
+#define VBUS_TO_HPI_ENABLE 0x8000
+
+/* SIE msg registers */
+#define SIEMSG_REG(x) ((x) ? 0x0148 : 0x0144)
+
+#define HUSB_TDListDone 0x1000
+
+#define SUSB_EP0_MSG 0x0001
+#define SUSB_EP1_MSG 0x0002
+#define SUSB_EP2_MSG 0x0004
+#define SUSB_EP3_MSG 0x0008
+#define SUSB_EP4_MSG 0x0010
+#define SUSB_EP5_MSG 0x0020
+#define SUSB_EP6_MSG 0x0040
+#define SUSB_EP7_MSG 0x0080
+#define SUSB_RST_MSG 0x0100
+#define SUSB_SOF_MSG 0x0200
+#define SUSB_CFG_MSG 0x0400
+#define SUSB_SUS_MSG 0x0800
+#define SUSB_ID_MSG 0x4000
+#define SUSB_VBUS_MSG 0x8000
+
+/* BIOS interrupt routines */
+
+#define SUSBx_RECEIVE_INT(x) ((x) ? 97 : 81)
+#define SUSBx_SEND_INT(x) ((x) ? 96 : 80)
+
+#define SUSBx_DEV_DESC_VEC(x) ((x) ? 0x00D4 : 0x00B4)
+#define SUSBx_CONF_DESC_VEC(x) ((x) ? 0x00D6 : 0x00B6)
+#define SUSBx_STRING_DESC_VEC(x) ((x) ? 0x00D8 : 0x00B8)
+
+#define CY_HCD_BUF_ADDR 0x500 /* Base address for host */
+#define SIE_TD_SIZE 0x200 /* size of the td list */
+#define SIE_TD_BUF_SIZE 0x400 /* size of the data buffer */
+
+#define SIE_TD_OFFSET(host) ((host) ? (SIE_TD_SIZE+SIE_TD_BUF_SIZE) : 0)
+#define SIE_BUF_OFFSET(host) (SIE_TD_OFFSET(host) + SIE_TD_SIZE)
+
+/* Base address of HCD + 2 x TD_SIZE + 2 x TD_BUF_SIZE */
+#define CY_UDC_REQ_HEADER_BASE 0x1100
+/* 8- byte request headers for IN/OUT transfers */
+#define CY_UDC_REQ_HEADER_SIZE 8
+
+#define CY_UDC_REQ_HEADER_ADDR(ep_num) (CY_UDC_REQ_HEADER_BASE + \
+ ((ep_num) * CY_UDC_REQ_HEADER_SIZE))
+#define CY_UDC_DESC_BASE_ADDRESS (CY_UDC_REQ_HEADER_ADDR(8))
+
+#define CY_UDC_BIOS_REPLACE_BASE 0x1800
+#define CY_UDC_REQ_BUFFER_BASE 0x2000
+#define CY_UDC_REQ_BUFFER_SIZE 0x0400
+#define CY_UDC_REQ_BUFFER_ADDR(ep_num) (CY_UDC_REQ_BUFFER_BASE + \
+ ((ep_num) * CY_UDC_REQ_BUFFER_SIZE))
+
+/* ---------------------------------------------------------------------
+ * Driver data structures
+ */
+
+struct c67x00_device;
+
+/**
+ * struct c67x00_sie - Common data associated with a SIE
+ * @lock: lock to protect this struct
+ * @private_data: subdriver dependent data
+ * @irq: subdriver dependent irq handler, set NULL when not used
+ * @dev: link to common driver structure
+ * @sie_num: SIE number on chip, starting from 0
+ * @mode: SIE mode (host/peripheral/otg/not used)
+ */
+struct c67x00_sie {
+ /* Entries to be used by the subdrivers */
+ spinlock_t lock; /* protect this structure */
+ void *private_data;
+ void (*irq) (struct c67x00_sie *sie, u16 int_status, u16 msg);
+
+ /* Read only: */
+ struct c67x00_device *dev;
+ int sie_num;
+ int mode;
+};
+
+#define sie_dev(s) (&(s)->dev->pdev->dev)
+
+/**
+ * struct c67x00_lcp
+ */
+struct c67x00_lcp {
+ /* Internal use only */
+ struct mutex mutex;
+ struct completion msg_received;
+ u16 last_msg;
+};
+
+/*
+ * struct c67x00_hpi
+ */
+struct c67x00_hpi {
+ void __iomem *base;
+ int regstep;
+ spinlock_t lock;
+ struct c67x00_lcp lcp;
+};
+
+#define C67X00_SIES 2
+#define C67X00_PORTS 2
+
+/**
+ * struct c67x00_device - Common data associated with a c67x00 instance
+ * @hpi: hpi addresses
+ * @sie: array of sie's on this chip
+ * @pdev: platform device of instance
+ * @pdata: configuration provided by the platform
+ */
+struct c67x00_device {
+ struct c67x00_hpi hpi;
+ struct c67x00_sie sie[C67X00_SIES];
+ struct platform_device *pdev;
+ struct c67x00_platform_data *pdata;
+};
+
+/* ---------------------------------------------------------------------
+ * Low level interface functions
+ */
+
+/* Host Port Interface (HPI) functions */
+u16 c67x00_ll_hpi_status(struct c67x00_device *dev);
+void c67x00_ll_hpi_reg_init(struct c67x00_device *dev);
+void c67x00_ll_hpi_enable_sofeop(struct c67x00_sie *sie);
+void c67x00_ll_hpi_disable_sofeop(struct c67x00_sie *sie);
+
+/* General functions */
+u16 c67x00_ll_get_siemsg(struct c67x00_sie *sie);
+void c67x00_ll_set_siemsg(struct c67x00_sie *sie, u16 val);
+u16 c67x00_ll_get_usb_ctl(struct c67x00_sie *sie);
+void c67x00_ll_usb_clear_status(struct c67x00_sie *sie, u16 bits);
+u16 c67x00_ll_usb_get_status(struct c67x00_sie *sie);
+void c67x00_ll_write_mem_le16(struct c67x00_device *dev, u16 addr,
+ void *data, int len);
+void c67x00_ll_read_mem_le16(struct c67x00_device *dev, u16 addr,
+ void *data, int len);
+
+/* Called by c67x00_irq to handle lcp interrupts */
+void c67x00_ll_irq(struct c67x00_device *dev, u16 int_status);
+
+/* Setup and teardown */
+void c67x00_ll_init(struct c67x00_device *dev);
+void c67x00_ll_release(struct c67x00_device *dev);
+int c67x00_ll_reset(struct c67x00_device *dev);
+
+#endif /* _USB_C67X00_H */
Index: linux-2.6/drivers/usb/c67x00/c67x00-ll-hpi.c
===================================================================
--- /dev/null
+++ linux-2.6/drivers/usb/c67x00/c67x00-ll-hpi.c
@@ -0,0 +1,409 @@
+/*
+ * c67x00-ll-hpi.c: Cypress C67X00 USB Low level interface using HPI
+ *
+ * Copyright (C) 2006-2008 Barco N.V.
+ * Derived from the Cypress cy7c67200/300 ezusb linux driver and
+ * based on multiple host controller drivers inside the linux kernel.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA.
+ */
+
+#include <asm/io.h>
+#include <asm/byteorder.h>
+#include <linux/usb/c67x00.h>
+#include "c67x00.h"
+
+#define COMM_REGS 14
+
+struct c67x00_lcp_int_data {
+ u16 regs[COMM_REGS];
+};
+
+/* -------------------------------------------------------------------------- */
+/* Interface definitions */
+
+#define COMM_ACK 0x0FED
+#define COMM_NAK 0xDEAD
+
+#define COMM_RESET 0xFA50
+#define COMM_EXEC_INT 0xCE01
+#define COMM_INT_NUM 0x01C2
+
+/* Registers 0 to COMM_REGS-1 */
+#define COMM_R(x) (0x01C4 + 2 * (x))
+
+#define HUSB_SIE_pCurrentTDPtr(x) ((x) ? 0x01B2 : 0x01B0)
+#define HUSB_SIE_pTDListDone_Sem(x) ((x) ? 0x01B8 : 0x01B6)
+#define HUSB_pEOT 0x01B4
+
+/* Software interrupts */
+/* 114, 115: */
+#define HUSB_SIE_INIT_INT(x) ((x) ? 0x0073 : 0x0072)
+#define HUSB_RESET_INT 0x0074
+
+#define SUSB_INIT_INT 0x0071
+#define SUSB_INIT_INT_LOC (SUSB_INIT_INT * 2)
+
+/* -----------------------------------------------------------------------
+ * HPI implementation
+ *
+ * The c67x00 chip also support control via SPI or HSS serial
+ * interfaces. However, this driver assumes that register access can
+ * be performed from IRQ context. While this is a safe assuption with
+ * the HPI interface, it is not true for the serial interfaces.
+ */
+
+/* HPI registers */
+#define HPI_DATA 0
+#define HPI_MAILBOX 1
+#define HPI_ADDR 2
+#define HPI_STATUS 3
+
+static inline u16 hpi_read_reg(struct c67x00_device *dev, int reg)
+{
+ return __raw_readw(dev->hpi.base + reg * dev->hpi.regstep);
+}
+
+static inline void hpi_write_reg(struct c67x00_device *dev, int reg, u16 value)
+{
+ __raw_writew(value, dev->hpi.base + reg * dev->hpi.regstep);
+}
+
+static inline u16 hpi_read_word_nolock(struct c67x00_device *dev, u16 reg)
+{
+ hpi_write_reg(dev, HPI_ADDR, reg);
+ return hpi_read_reg(dev, HPI_DATA);
+}
+
+static inline u16 hpi_read_word(struct c67x00_device *dev, u16 reg)
+{
+ u16 value;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->hpi.lock, flags);
+ value = hpi_read_word_nolock(dev, reg);
+ spin_unlock_irqrestore(&dev->hpi.lock, flags);
+
+ return value;
+}
+
+static inline void hpi_write_word_nolock(struct c67x00_device *dev, u16 reg,
+ u16 value)
+{
+ hpi_write_reg(dev, HPI_ADDR, reg);
+ hpi_write_reg(dev, HPI_DATA, value);
+}
+
+static inline void hpi_write_word(struct c67x00_device *dev, u16 reg, u16 value)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->hpi.lock, flags);
+ hpi_write_word_nolock(dev, reg, value);
+ spin_unlock_irqrestore(&dev->hpi.lock, flags);
+}
+
+/*
+ * Only data is little endian, addr has cpu endianess
+ */
+static inline void hpi_write_words_le16(struct c67x00_device *dev, u16 addr,
+ u16 *data, u16 count)
+{
+ unsigned long flags;
+ int i;
+
+ spin_lock_irqsave(&dev->hpi.lock, flags);
+
+ hpi_write_reg(dev, HPI_ADDR, addr);
+ for (i = 0; i < count; i++)
+ hpi_write_reg(dev, HPI_DATA, cpu_to_le16(*data++));
+
+ spin_unlock_irqrestore(&dev->hpi.lock, flags);
+}
+
+/*
+ * Only data is little endian, addr has cpu endianess
+ */
+static inline void hpi_read_words_le16(struct c67x00_device *dev, u16 addr,
+ u16 *data, u16 count)
+{
+ unsigned long flags;
+ int i;
+ spin_lock_irqsave(&dev->hpi.lock, flags);
+ hpi_write_reg(dev, HPI_ADDR, addr);
+ for (i = 0; i < count; i++)
+ *data++ = le16_to_cpu(hpi_read_reg(dev, HPI_DATA));
+
+ spin_unlock_irqrestore(&dev->hpi.lock, flags);
+}
+
+static inline void hpi_set_bits(struct c67x00_device *dev, u16 reg, u16 mask)
+{
+ u16 value;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->hpi.lock, flags);
+ value = hpi_read_word_nolock(dev, reg);
+ hpi_write_word_nolock(dev, reg, value | mask);
+ spin_unlock_irqrestore(&dev->hpi.lock, flags);
+}
+
+static inline void hpi_clear_bits(struct c67x00_device *dev, u16 reg, u16 mask)
+{
+ u16 value;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->hpi.lock, flags);
+ value = hpi_read_word_nolock(dev, reg);
+ hpi_write_word_nolock(dev, reg, value & ~mask);
+ spin_unlock_irqrestore(&dev->hpi.lock, flags);
+}
+
+static inline u16 hpi_recv_mbox(struct c67x00_device *dev)
+{
+ u16 value;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->hpi.lock, flags);
+ value = hpi_read_reg(dev, HPI_MAILBOX);
+ spin_unlock_irqrestore(&dev->hpi.lock, flags);
+
+ return value;
+}
+
+static inline u16 hpi_send_mbox(struct c67x00_device *dev, u16 value)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->hpi.lock, flags);
+ hpi_write_reg(dev, HPI_MAILBOX, value);
+ spin_unlock_irqrestore(&dev->hpi.lock, flags);
+
+ return value;
+}
+
+u16 c67x00_ll_hpi_status(struct c67x00_device *dev)
+{
+ u16 value;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->hpi.lock, flags);
+ value = hpi_read_reg(dev, HPI_STATUS);
+ spin_unlock_irqrestore(&dev->hpi.lock, flags);
+
+ return value;
+}
+
+void c67x00_ll_hpi_reg_init(struct c67x00_device *dev)
+{
+ int i;
+
+ hpi_recv_mbox(dev);
+ c67x00_ll_hpi_status(dev);
+ hpi_write_word(dev, HPI_IRQ_ROUTING_REG, 0);
+
+ for (i = 0; i < C67X00_SIES; i++) {
+ hpi_write_word(dev, SIEMSG_REG(i), 0);
+ hpi_read_word(dev, SIEMSG_REG(i));
+ }
+}
+
+void c67x00_ll_hpi_enable_sofeop(struct c67x00_sie *sie)
+{
+ hpi_set_bits(sie->dev, HPI_IRQ_ROUTING_REG,
+ SOFEOP_TO_HPI_EN(sie->sie_num));
+}
+
+void c67x00_ll_hpi_disable_sofeop(struct c67x00_sie *sie)
+{
+ hpi_clear_bits(sie->dev, HPI_IRQ_ROUTING_REG,
+ SOFEOP_TO_HPI_EN(sie->sie_num));
+}
+
+/* -------------------------------------------------------------------------- */
+/* Transactions */
+
+static inline u16 ll_recv_msg(struct c67x00_device *dev)
+{
+ u16 res;
+
+ res = wait_for_completion_timeout(&dev->hpi.lcp.msg_received, 5 * HZ);
+ WARN_ON(!res);
+
+ return (res == 0) ? -EIO : 0;
+}
+
+/* -------------------------------------------------------------------------- */
+/* General functions */
+
+u16 c67x00_ll_get_siemsg(struct c67x00_sie *sie)
+{
+ return hpi_read_word(sie->dev, SIEMSG_REG(sie->sie_num));
+}
+
+void c67x00_ll_set_siemsg(struct c67x00_sie *sie, u16 val)
+{
+ hpi_write_word(sie->dev, SIEMSG_REG(sie->sie_num), val);
+}
+
+u16 c67x00_ll_get_usb_ctl(struct c67x00_sie *sie)
+{
+ return hpi_read_word(sie->dev, USB_CTL_REG(sie->sie_num));
+}
+
+/**
+ * c67x00_ll_usb_clear_status - clear the USB status bits
+ */
+void c67x00_ll_usb_clear_status(struct c67x00_sie *sie, u16 bits)
+{
+ hpi_write_word(sie->dev, USB_STAT_REG(sie->sie_num), bits);
+}
+
+u16 c67x00_ll_usb_get_status(struct c67x00_sie *sie)
+{
+ return hpi_read_word(sie->dev, USB_STAT_REG(sie->sie_num));
+}
+
+/* -------------------------------------------------------------------------- */
+
+static int c67x00_comm_exec_int(struct c67x00_device *dev, u16 nr,
+ struct c67x00_lcp_int_data *data)
+{
+ int i, rc;
+
+ mutex_lock(&dev->hpi.lcp.mutex);
+ hpi_write_word(dev, COMM_INT_NUM, nr);
+ for (i = 0; i < COMM_REGS; i++)
+ hpi_write_word(dev, COMM_R(i), data->regs[i]);
+ hpi_send_mbox(dev, COMM_EXEC_INT);
+ rc = ll_recv_msg(dev);
+ mutex_unlock(&dev->hpi.lcp.mutex);
+
+ return rc;
+}
+
+static u16 c67x00_get_comm_reg(struct c67x00_device *dev, u16 nr)
+{
+ return hpi_read_word(dev, COMM_R(nr));
+}
+
+/* -------------------------------------------------------------------------- */
+
+void c67x00_ll_irq(struct c67x00_device *dev, u16 int_status)
+{
+ if ((int_status & MBX_OUT_FLG) == 0)
+ return;
+
+ dev->hpi.lcp.last_msg = hpi_recv_mbox(dev);
+ complete(&dev->hpi.lcp.msg_received);
+}
+
+/* -------------------------------------------------------------------------- */
+
+int c67x00_ll_reset(struct c67x00_device *dev)
+{
+ int rc;
+
+ mutex_lock(&dev->hpi.lcp.mutex);
+ hpi_send_mbox(dev, COMM_RESET);
+ rc = ll_recv_msg(dev);
+ mutex_unlock(&dev->hpi.lcp.mutex);
+
+ return rc;
+}
+
+/* -------------------------------------------------------------------------- */
+
+/**
+ * c67x00_ll_write_mem_le16 - write into c67x00 memory
+ * Only data is little endian, addr has cpu endianess.
+ */
+void c67x00_ll_write_mem_le16(struct c67x00_device *dev, u16 addr,
+ void *data, int len)
+{
+ u8 *buf = data;
+
+ /* Sanity check */
+ if (addr + len > 0xffff) {
+ dev_err(&dev->pdev->dev,
+ "Trying to write beyond writable region!\n");
+ return;
+ }
+
+ if (addr & 0x01) {
+ /* unaligned access */
+ u16 tmp;
+ tmp = hpi_read_word(dev, addr - 1);
+ tmp = (tmp & 0x00ff) | (*buf++ << 8);
+ hpi_write_word(dev, addr - 1, tmp);
+ addr++;
+ len--;
+ }
+
+ hpi_write_words_le16(dev, addr, (u16 *)buf, len / 2);
+ buf += len & ~0x01;
+ addr += len & ~0x01;
+ len &= 0x01;
+
+ if (len) {
+ u16 tmp;
+ tmp = hpi_read_word(dev, addr);
+ tmp = (tmp & 0xff00) | *buf;
+ hpi_write_word(dev, addr, tmp);
+ }
+}
+
+/**
+ * c67x00_ll_read_mem_le16 - read from c67x00 memory
+ * Only data is little endian, addr has cpu endianess.
+ */
+void c67x00_ll_read_mem_le16(struct c67x00_device *dev, u16 addr,
+ void *data, int len)
+{
+ u8 *buf = data;
+
+ if (addr & 0x01) {
+ /* unaligned access */
+ u16 tmp;
+ tmp = hpi_read_word(dev, addr - 1);
+ *buf++ = (tmp >> 8) & 0x00ff;
+ addr++;
+ len--;
+ }
+
+ hpi_read_words_le16(dev, addr, (u16 *)buf, len / 2);
+ buf += len & ~0x01;
+ addr += len & ~0x01;
+ len &= 0x01;
+
+ if (len) {
+ u16 tmp;
+ tmp = hpi_read_word(dev, addr);
+ *buf = tmp & 0x00ff;
+ }
+}
+
+/* -------------------------------------------------------------------------- */
+
+void c67x00_ll_init(struct c67x00_device *dev)
+{
+ mutex_init(&dev->hpi.lcp.mutex);
+ init_completion(&dev->hpi.lcp.msg_received);
+}
+
+void c67x00_ll_release(struct c67x00_device *dev)
+{
+}
--
Bye, Peter Korsgaard
^ permalink raw reply
* [patch v5 0/4] Cypress c67x00 (EZ-Host/EZ-OTG) support
From: Peter Korsgaard @ 2008-01-24 14:47 UTC (permalink / raw)
To: dbrownell, linux-usb, linuxppc-dev, grant.likely
The Cypress c67x00 (EZ-Host/EZ-OTG) controllers are multi-role low/fullspeed
USB controllers. This patch series implements a HCD driver and shows the
work-in-progress status of a gadget driver.
I believe patch 1..3 are ready, and I would like to see them queued up for
2.6.25.
Changes since v4:
- Addressed Grant's comments (c67x00_dev->c67x00_hcd_dev, label indent)
- Moved c67x00_ll_set_ep_{ctrl,packet_size}_reg() to patch 4 as they are
only needed for gadget support.
- Added c67x00_ prefix to struct lcp_int_data
--
Bye, Peter Korsgaard
^ permalink raw reply
* [patch v5 2/4] USB: add Cypress c67x00 OTG controller core driver
From: Peter Korsgaard @ 2008-01-24 14:47 UTC (permalink / raw)
To: dbrownell, linux-usb, linuxppc-dev, grant.likely
In-Reply-To: <20080124144706.041042000@sunsite.dk>
This patch add the core driver for the c67x00 USB OTG controller. The core
driver is responsible for the platform bus binding and creating either
USB HCD or USB Gadget instances for each of the serial interface engines
on the chip.
This driver does not directly implement the HCD or gadget behaviours; it
just controls access to the chip.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
---
MAINTAINERS | 6 +
drivers/usb/c67x00/c67x00-drv.c | 236 ++++++++++++++++++++++++++++++++++++++++
include/linux/usb/c67x00.h | 48 ++++++++
3 files changed, 290 insertions(+)
Index: linux-2.6/drivers/usb/c67x00/c67x00-drv.c
===================================================================
--- /dev/null
+++ linux-2.6/drivers/usb/c67x00/c67x00-drv.c
@@ -0,0 +1,236 @@
+/*
+ * c67x00-drv.c: Cypress C67X00 USB Common infrastructure
+ *
+ * Copyright (C) 2006-2008 Barco N.V.
+ * Derived from the Cypress cy7c67200/300 ezusb linux driver and
+ * based on multiple host controller drivers inside the linux kernel.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA.
+ */
+
+/*
+ * This file implements the common infrastructure for using the c67x00.
+ * It is both the link between the platform configuration and subdrivers and
+ * the link between the common hardware parts and the subdrivers (e.g.
+ * interrupt handling).
+ *
+ * The c67x00 has 2 SIE's (serial interface engine) wich can be configured
+ * to be host, device or OTG (with some limitations, E.G. only SIE1 can be OTG).
+ *
+ * Depending on the platform configuration, the SIE's are created and
+ * the corresponding subdriver is initialized (c67x00_probe_sie).
+ */
+
+#include <linux/device.h>
+#include <linux/list.h>
+#include <linux/usb.h>
+#include <linux/usb/c67x00.h>
+#include <asm/io.h>
+
+#include "c67x00.h"
+
+static void c67x00_probe_sie(struct c67x00_sie *sie,
+ struct c67x00_device *dev, int sie_num)
+{
+ spin_lock_init(&sie->lock);
+ sie->dev = dev;
+ sie->sie_num = sie_num;
+ sie->mode = c67x00_sie_config(dev->pdata->sie_config, sie_num);
+
+ switch (sie->mode) {
+ case C67X00_SIE_UNUSED:
+ dev_info(sie_dev(sie),
+ "Not using SIE %d as requested\n", sie->sie_num);
+ break;
+
+ default:
+ dev_err(sie_dev(sie),
+ "Unsupported configuration: 0x%x for SIE %d\n",
+ sie->mode, sie->sie_num);
+ break;
+ }
+}
+
+static void c67x00_remove_sie(struct c67x00_sie *sie)
+{
+}
+
+
+static irqreturn_t c67x00_irq(int irq, void *__dev)
+{
+ struct c67x00_device *c67x00 = __dev;
+ struct c67x00_sie *sie;
+ u16 msg, int_status;
+ int i, count = 8;
+
+ int_status = c67x00_ll_hpi_status(c67x00);
+ if (!int_status)
+ return IRQ_NONE;
+
+ while (int_status != 0 && (count-- >= 0)) {
+ c67x00_ll_irq(c67x00, int_status);
+ for (i = 0; i < C67X00_SIES; i++) {
+ sie = &c67x00->sie[i];
+ msg = 0;
+ if (int_status & SIEMSG_FLG(i)) {
+ msg = c67x00_ll_get_siemsg(sie);
+ /* clear register to allow next message */
+ c67x00_ll_set_siemsg(sie, 0);
+ }
+ if (sie->irq)
+ sie->irq(sie, int_status, msg);
+ }
+ int_status = c67x00_ll_hpi_status(c67x00);
+ }
+
+ if (int_status)
+ dev_warn(&c67x00->pdev->dev, "Not all interrupts handled! "
+ "status = 0x%04x\n", int_status);
+
+ return IRQ_HANDLED;
+}
+
+/* ------------------------------------------------------------------------- */
+
+static int __devinit c67x00_drv_probe(struct platform_device *pdev)
+{
+ struct c67x00_device *c67x00;
+ struct c67x00_platform_data *pdata;
+ struct resource *res, *res2;
+ int ret, i;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -ENODEV;
+
+ res2 = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ if (!res2)
+ return -ENODEV;
+
+ pdata = pdev->dev.platform_data;
+ if (!pdata)
+ return -ENODEV;
+
+ c67x00 = kzalloc(sizeof(*c67x00), GFP_KERNEL);
+ if (!c67x00)
+ return -ENOMEM;
+
+ if (!request_mem_region(res->start, res->end - res->start + 1,
+ pdev->name)) {
+ dev_err(&pdev->dev, "Memory region busy\n");
+ ret = -EBUSY;
+ goto request_mem_failed;
+ }
+ c67x00->hpi.base = ioremap(res->start, res->end - res->start + 1);
+ if (!c67x00->hpi.base) {
+ dev_err(&pdev->dev, "Unable to map HPI registers\n");
+ ret = -EIO;
+ goto map_failed;
+ }
+
+ spin_lock_init(&c67x00->hpi.lock);
+ c67x00->hpi.regstep = pdata->hpi_regstep;
+ c67x00->pdata = pdev->dev.platform_data;
+ c67x00->pdev = pdev;
+
+ c67x00_ll_init(c67x00);
+ c67x00_ll_hpi_reg_init(c67x00);
+
+ ret = request_irq(res2->start, c67x00_irq, 0, pdev->name, c67x00);
+ if (ret) {
+ dev_err(&pdev->dev, "Cannot claim IRQ\n");
+ goto request_irq_failed;
+ }
+
+ ret = c67x00_ll_reset(c67x00);
+ if (ret) {
+ dev_err(&pdev->dev, "Device reset failed\n");
+ goto reset_failed;
+ }
+
+ for (i = 0; i < C67X00_SIES; i++)
+ c67x00_probe_sie(&c67x00->sie[i], c67x00, i);
+
+ platform_set_drvdata(pdev, c67x00);
+
+ return 0;
+
+ reset_failed:
+ free_irq(res2->start, c67x00);
+ request_irq_failed:
+ iounmap(c67x00->hpi.base);
+ map_failed:
+ release_mem_region(res->start, res->end - res->start + 1);
+ request_mem_failed:
+ kfree(c67x00);
+
+ return ret;
+}
+
+static int __devexit c67x00_drv_remove(struct platform_device *pdev)
+{
+ struct c67x00_device *c67x00 = platform_get_drvdata(pdev);
+ struct resource *res;
+ int i;
+
+ for (i = 0; i < C67X00_SIES; i++)
+ c67x00_remove_sie(&c67x00->sie[i]);
+
+ c67x00_ll_release(c67x00);
+
+ res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ if (res)
+ free_irq(res->start, c67x00);
+
+ iounmap(c67x00->hpi.base);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (res)
+ release_mem_region(res->start, res->end - res->start + 1);
+
+ kfree(c67x00);
+
+ return 0;
+}
+
+static struct platform_driver c67x00_driver = {
+ .probe = c67x00_drv_probe,
+ .remove = __devexit_p(c67x00_drv_remove),
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "c67x00",
+ },
+};
+
+static int __init c67x00_init(void)
+{
+ if (usb_disabled())
+ return -ENODEV;
+
+ return platform_driver_register(&c67x00_driver);
+}
+
+static void __exit c67x00_exit(void)
+{
+ platform_driver_unregister(&c67x00_driver);
+}
+
+module_init(c67x00_init);
+module_exit(c67x00_exit);
+
+MODULE_AUTHOR("Peter Korsgaard, Jan Veldeman, Grant Likely");
+MODULE_DESCRIPTION("Cypress C67X00 USB Controller Driver");
+MODULE_LICENSE("GPL");
Index: linux-2.6/include/linux/usb/c67x00.h
===================================================================
--- /dev/null
+++ linux-2.6/include/linux/usb/c67x00.h
@@ -0,0 +1,48 @@
+/*
+ * usb_c67x00.h: platform definitions for the Cypress C67X00 USB chip
+ *
+ * Copyright (C) 2006-2007 Barco N.V.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA.
+ */
+
+#ifndef _LINUX_USB_C67X00_H
+#define _LINUX_USB_C67X00_H
+
+/* SIE configuration */
+#define C67X00_SIE_UNUSED 0
+#define C67X00_SIE_HOST 1
+#define C67X00_SIE_PERIPHERAL_A 2 /* peripheral on A port */
+#define C67X00_SIE_PERIPHERAL_B 3 /* peripheral on B port */
+
+#define c67x00_sie_config(config, n) (((config)>>(4*(n)))&0x3)
+
+#define C67X00_SIE1_UNUSED (C67X00_SIE_UNUSED << 0)
+#define C67X00_SIE1_HOST (C67X00_SIE_HOST << 0)
+#define C67X00_SIE1_PERIPHERAL_A (C67X00_SIE_PERIPHERAL_A << 0)
+#define C67X00_SIE1_PERIPHERAL_B (C67X00_SIE_PERIPHERAL_B << 0)
+
+ #define C67X00_SIE2_UNUSED (C67X00_SIE_UNUSED << 4)
+ #define C67X00_SIE2_HOST (C67X00_SIE_HOST << 4)
+ #define C67X00_SIE2_PERIPHERAL_A (C67X00_SIE_PERIPHERAL_A << 4)
+ #define C67X00_SIE2_PERIPHERAL_B (C67X00_SIE_PERIPHERAL_B << 4)
+
+struct c67x00_platform_data {
+ int sie_config; /* SIEs config (C67X00_SIEx_*) */
+ unsigned long hpi_regstep; /* Step between HPI registers */
+};
+
+#endif /* _LINUX_USB_C67X00_H */
Index: linux-2.6/MAINTAINERS
===================================================================
--- linux-2.6.orig/MAINTAINERS
+++ linux-2.6/MAINTAINERS
@@ -3832,6 +3832,12 @@
S: Maintained
W: http://www.kroah.com/linux-usb/
+USB CYPRESS C67X00 DRIVER
+P: Peter Korsgaard
+M: jacmet@sunsite.dk
+L: linux-usb@vger.kernel.org
+S: Maintained
+
USB DAVICOM DM9601 DRIVER
P: Peter Korsgaard
M: jacmet@sunsite.dk
--
Bye, Peter Korsgaard
^ permalink raw reply
* Re: [PATCH 3/4 v4] POWERPC: Add initial iomega StorCenter board port.
From: Jon Loeliger @ 2008-01-24 15:06 UTC (permalink / raw)
To: Stephen Rothwell; +Cc: linuxppc-dev, Jon Loeliger
In-Reply-To: <20080124115018.69551acf.sfr@canb.auug.org.au>
Stephen Rothwell wrote:
> Hi Jon,
>> +
>> + dnp = of_find_node_by_type(NULL, "open-pic");
>> + if (dnp == NULL)
>> + return;
>> +
>> + prop = of_get_property(dnp, "reg", &size);
>> + if (prop == NULL)
>> + return;
>
> You need an of_node_put(dnp) before you return.
"Damn your eyes!"
Kumar, I'll send you a patch here...
jdl
^ permalink raw reply
* Re: [PATCH 0/7] Powerpc support for SBC8560 board
From: Paul Gortmaker @ 2008-01-24 14:27 UTC (permalink / raw)
To: Kumar Gala; +Cc: linuxppc-dev
In-Reply-To: <FF6CE4C3-5ED3-4FDB-9067-DACB60E80E3E@kernel.crashing.org>
Kumar Gala wrote:
>
> On Jan 24, 2008, at 8:17 AM, Paul Gortmaker wrote:
>
>> Kumar Gala wrote:
>>>
>>> Have we closed on these patches?
>>>
>>> the sbc8560 is the last board that we need to close on for me to
>>> kill 85xx in arch/ppc.
>>
>> I think so. For the 8560, the last issue was David wanting
>> the dts to have the address cells =2 on localbus-like nodes
>> and I've not heard any negative feedback on how I did it (yet).
>>
>> I'll resend the 8xxx patches as a lump today for the sake
>> of merge convenience, with the legacy_serial change and the
>> extra simplebus that Scott asked for factored out separate.
>
> ok that would be great. Will that include an updated sbc834x set?
Yes, the sbc834x, sbc8548 and sbc8560.
Thanks,
Paul.
>
> - k
^ permalink raw reply
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