* [PATCH] [POWERPC][NET][SERIAL] UCCs: replace device-id with cell-index (was: Re: [PATCH] [POWERPC] get rid of `model = "UCC"' in the ucc nodes)
[not found] ` <72B60725-FB4A-42FA-832D-8FD5434B9042@kernel.crashing.org>
@ 2008-02-01 17:33 ` Anton Vorontsov
2008-02-01 17:52 ` [PATCH] [POWERPC][NET][SERIAL] UCCs: replace device-id with cell-index Jeff Garzik
0 siblings, 1 reply; 2+ messages in thread
From: Anton Vorontsov @ 2008-02-01 17:33 UTC (permalink / raw)
To: Kumar Gala
Cc: Jeff Garzik, Timur Tabi, Grant Likely, Li Yang, linuxppc-dev,
linux-serial, netdev
On Fri, Feb 01, 2008 at 09:32:38AM -0600, Kumar Gala wrote:
> On Feb 1, 2008, at 9:01 AM, Anton Vorontsov wrote:
>
> >It isn't used anywhere, so remove it. If we'll ever need something
> >like this, we'll use compatible property instead.
> >
> >Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
> >---
> >
> >Rebased on top of recent tree.
> >
> >Documentation/powerpc/booting-without-of.txt | 1 -
> >arch/powerpc/boot/dts/mpc832x_mds.dts | 3 ---
> >arch/powerpc/boot/dts/mpc832x_rdb.dts | 2 --
> >arch/powerpc/boot/dts/mpc836x_mds.dts | 2 --
> >arch/powerpc/boot/dts/mpc8568mds.dts | 2 --
> >5 files changed, 0 insertions(+), 10 deletions(-)
> >
> >diff --git a/Documentation/powerpc/booting-without-of.txt b/
> >Documentation/powerpc/booting-without-of.txt
> >index 410c847..dcf9758 100644
> >--- a/Documentation/powerpc/booting-without-of.txt
> >+++ b/Documentation/powerpc/booting-without-of.txt
> >@@ -1675,7 +1675,6 @@ platforms are moved over to use the flattened-
> >device-tree model.
> > ucc@2000 {
> > device_type = "network";
> > compatible = "ucc_geth";
> >- model = "UCC";
> > device-id = <1>;
>
> can we change device-id to cell-index?
Sure. But let's do this in the separate patch? Because this change
actually touches the code in the two subsystems: net and serial.
I hope everybody will agree to pass it through powerpc tree..?
- - - -
From: Anton Vorontsov <avorontsov@ru.mvista.com>
Subject: [POWERPC][NET][SERIAL] UCCs: replace device-id with cell-index
device-id is worse than cell-index. Probably cell-index isn't
good either, but device-id is worse anyway.
Drivers are modified for backward compatibility's sake.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
---
Documentation/powerpc/booting-without-of.txt | 4 ++--
arch/powerpc/boot/dts/mpc832x_mds.dts | 4 +---
arch/powerpc/boot/dts/mpc832x_rdb.dts | 2 --
arch/powerpc/boot/dts/mpc836x_mds.dts | 2 --
arch/powerpc/boot/dts/mpc836x_rdk.dts | 12 ++++++------
arch/powerpc/boot/dts/mpc8568mds.dts | 2 --
drivers/net/ucc_geth.c | 8 +++++++-
drivers/net/ucc_geth_mii.c | 11 ++++++++---
drivers/serial/ucc_uart.c | 16 ++++++++++++----
9 files changed, 36 insertions(+), 25 deletions(-)
diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt
index dcf9758..7b30798 100644
--- a/Documentation/powerpc/booting-without-of.txt
+++ b/Documentation/powerpc/booting-without-of.txt
@@ -1618,7 +1618,7 @@ platforms are moved over to use the flattened-device-tree model.
"bisync", "atm", or "serial".
- compatible : could be "ucc_geth" or "fsl_atm" and so on.
- model : should be "UCC".
- - device-id : the ucc number(1-8), corresponding to UCCx in UM.
+ - cell-index : the ucc number(1-8), corresponding to UCCx in UM.
- reg : Offset and length of the register set for the device
- interrupts : <a b> where a is the interrupt number and b is a
field that represents an encoding of the sense and level
@@ -1675,7 +1675,7 @@ platforms are moved over to use the flattened-device-tree model.
ucc@2000 {
device_type = "network";
compatible = "ucc_geth";
- device-id = <1>;
+ cell-index = <1>;
reg = <2000 200>;
interrupts = <a0 0>;
interrupt-parent = <700>;
diff --git a/arch/powerpc/boot/dts/mpc832x_mds.dts b/arch/powerpc/boot/dts/mpc832x_mds.dts
index f8b4a37..539e02f 100644
--- a/arch/powerpc/boot/dts/mpc832x_mds.dts
+++ b/arch/powerpc/boot/dts/mpc832x_mds.dts
@@ -256,7 +256,6 @@
device_type = "network";
compatible = "ucc_geth";
cell-index = <3>;
- device-id = <3>;
reg = <0x2200 0x200>;
interrupts = <34>;
interrupt-parent = <&qeic>;
@@ -271,7 +270,6 @@
device_type = "network";
compatible = "ucc_geth";
cell-index = <4>;
- device-id = <4>;
reg = <0x3200 0x200>;
interrupts = <35>;
interrupt-parent = <&qeic>;
@@ -285,7 +283,7 @@
ucc@2400 {
device_type = "serial";
compatible = "ucc_uart";
- device-id = <5>; /* The UCC number, 1-7*/
+ cell-index = <5>; /* The UCC number, 1-7*/
port-number = <0>; /* Which ttyQEx device */
soft-uart; /* We need Soft-UART */
reg = <0x2400 0x200>;
diff --git a/arch/powerpc/boot/dts/mpc832x_rdb.dts b/arch/powerpc/boot/dts/mpc832x_rdb.dts
index ea7fcbf..179c81c 100644
--- a/arch/powerpc/boot/dts/mpc832x_rdb.dts
+++ b/arch/powerpc/boot/dts/mpc832x_rdb.dts
@@ -209,7 +209,6 @@
device_type = "network";
compatible = "ucc_geth";
cell-index = <2>;
- device-id = <2>;
reg = <0x3000 0x200>;
interrupts = <33>;
interrupt-parent = <&qeic>;
@@ -224,7 +223,6 @@
device_type = "network";
compatible = "ucc_geth";
cell-index = <3>;
- device-id = <3>;
reg = <0x2200 0x200>;
interrupts = <34>;
interrupt-parent = <&qeic>;
diff --git a/arch/powerpc/boot/dts/mpc836x_mds.dts b/arch/powerpc/boot/dts/mpc836x_mds.dts
index 525423c..8160ff2 100644
--- a/arch/powerpc/boot/dts/mpc836x_mds.dts
+++ b/arch/powerpc/boot/dts/mpc836x_mds.dts
@@ -258,7 +258,6 @@
device_type = "network";
compatible = "ucc_geth";
cell-index = <1>;
- device-id = <1>;
reg = <0x2000 0x200>;
interrupts = <32>;
interrupt-parent = <&qeic>;
@@ -274,7 +273,6 @@
device_type = "network";
compatible = "ucc_geth";
cell-index = <2>;
- device-id = <2>;
reg = <0x3000 0x200>;
interrupts = <33>;
interrupt-parent = <&qeic>;
diff --git a/arch/powerpc/boot/dts/mpc836x_rdk.dts b/arch/powerpc/boot/dts/mpc836x_rdk.dts
index e35200a..cc56338 100644
--- a/arch/powerpc/boot/dts/mpc836x_rdk.dts
+++ b/arch/powerpc/boot/dts/mpc836x_rdk.dts
@@ -179,7 +179,7 @@
enet0: ucc@2000 {
device_type = "network";
compatible = "ucc_geth";
- device-id = <1>;
+ cell-index = <1>;
reg = <0x2000 0x200>;
interrupts = <32>;
interrupt-parent = <&qeic>;
@@ -194,7 +194,7 @@
enet1: ucc@3000 {
device_type = "network";
compatible = "ucc_geth";
- device-id = <2>;
+ cell-index = <2>;
reg = <0x3000 0x200>;
interrupts = <33>;
interrupt-parent = <&qeic>;
@@ -209,7 +209,7 @@
enet2: ucc@2600 {
device_type = "network";
compatible = "ucc_geth";
- device-id = <7>;
+ cell-index = <7>;
reg = <0x2600 0x200>;
interrupts = <42>;
interrupt-parent = <&qeic>;
@@ -224,7 +224,7 @@
enet3: ucc@3200 {
device_type = "network";
compatible = "ucc_geth";
- device-id = <4>;
+ cell-index = <4>;
reg = <0x3200 0x200>;
interrupts = <35>;
interrupt-parent = <&qeic>;
@@ -271,7 +271,7 @@
device_type = "serial";
compatible = "ucc_uart";
reg = <0x2400 0x200>;
- device-id = <5>;
+ cell-index = <5>;
port-number = <0>;
rx-clock-name = "brg7";
tx-clock-name = "brg8";
@@ -284,7 +284,7 @@
device_type = "serial";
compatible = "ucc_uart";
reg = <0x3400 0x200>;
- device-id = <6>;
+ cell-index = <6>;
port-number = <1>;
rx-clock-name = "brg13";
tx-clock-name = "brg14";
diff --git a/arch/powerpc/boot/dts/mpc8568mds.dts b/arch/powerpc/boot/dts/mpc8568mds.dts
index 66087d5..df4b5e8 100644
--- a/arch/powerpc/boot/dts/mpc8568mds.dts
+++ b/arch/powerpc/boot/dts/mpc8568mds.dts
@@ -325,7 +325,6 @@
device_type = "network";
compatible = "ucc_geth";
cell-index = <1>;
- device-id = <1>;
reg = <2000 200>;
interrupts = <20>;
interrupt-parent = <&qeic>;
@@ -341,7 +340,6 @@
device_type = "network";
compatible = "ucc_geth";
cell-index = <2>;
- device-id = <2>;
reg = <3000 200>;
interrupts = <21>;
interrupt-parent = <&qeic>;
diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c
index fba0811..3a68b94 100644
--- a/drivers/net/ucc_geth.c
+++ b/drivers/net/ucc_geth.c
@@ -3852,7 +3852,13 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma
ugeth_vdbg("%s: IN", __FUNCTION__);
- prop = of_get_property(np, "device-id", NULL);
+ prop = of_get_property(np, "cell-index", NULL);
+ if (!prop) {
+ prop = of_get_property(np, "device-id", NULL);
+ if (!prop)
+ return -ENODEV;
+ }
+
ucc_num = *prop - 1;
if ((ucc_num < 0) || (ucc_num > 7))
return -ENODEV;
diff --git a/drivers/net/ucc_geth_mii.c b/drivers/net/ucc_geth_mii.c
index e3ba14a..e5b17d7 100644
--- a/drivers/net/ucc_geth_mii.c
+++ b/drivers/net/ucc_geth_mii.c
@@ -203,9 +203,14 @@ static int uec_mdio_probe(struct of_device *ofdev, const struct of_device_id *ma
if ((res.start >= tempres.start) &&
(res.end <= tempres.end)) {
/* set this UCC to be the MII master */
- const u32 *id = of_get_property(tempnp, "device-id", NULL);
- if (id == NULL)
- goto bus_register_fail;
+ const u32 *id;
+
+ id = of_get_property(tempnp, "cell-index", NULL);
+ if (!id) {
+ id = of_get_property(tempnp, "device-id", NULL);
+ if (!id)
+ goto bus_register_fail;
+ }
ucc_set_qe_mux_mii_mng(*id - 1);
diff --git a/drivers/serial/ucc_uart.c b/drivers/serial/ucc_uart.c
index e0994f0..5e4310c 100644
--- a/drivers/serial/ucc_uart.c
+++ b/drivers/serial/ucc_uart.c
@@ -1270,10 +1270,18 @@ static int ucc_uart_probe(struct of_device *ofdev,
/* Get the UCC number (device ID) */
/* UCCs are numbered 1-7 */
- iprop = of_get_property(np, "device-id", NULL);
- if (!iprop || (*iprop < 1) || (*iprop > UCC_MAX_NUM)) {
- dev_err(&ofdev->dev,
- "missing or invalid UCC specified in device tree\n");
+ iprop = of_get_property(np, "cell-index", NULL);
+ if (!iprop) {
+ iprop = of_get_property(np, "device-id", NULL);
+ if (!iprop) {
+ dev_err(&ofdev->dev, "UCC is unspecified in "
+ "device tree\n");
+ return -EINVAL;
+ }
+ }
+
+ if ((*iprop < 1) || (*iprop > UCC_MAX_NUM)) {
+ dev_err(&ofdev->dev, "no support for UCC%u\n", *iprop);
kfree(qe_port);
return -ENODEV;
}
--
1.5.2.2
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