* dts,i2c,pcf8574 on Xilinx XUP
@ 2010-04-01 20:50 ST
2010-04-01 22:14 ` Wolfram Sang
0 siblings, 1 reply; 6+ messages in thread
From: ST @ 2010-04-01 20:50 UTC (permalink / raw)
To: linuxppc-dev
Hi
I am currently trying to get the i2c driver from there:
http://www.mail-archive.com/linux-i2c@vger.kernel.org/msg02403.html
working on a full custom toolchain from me based on ptxdist as a
hobby.
Unfortunatly the i2c driver hangs the git://git.xilinx.com/linux-2.6-xlnx
tree hard if i run i2cdetect. Also my pcf device is not listed as a device.
Obviously my device tree is not correct as the dtc compiler complains:
Warning (avoid_default_addr_size): Relying on default #address-cells value =
for /plb@0/i2c@81600000/iexp@20
Warning (avoid_default_addr_size): Relying on default #size-cells value for=
/plb@0/i2c@81600000/iexp@20
Warning (avoid_default_addr_size): Relying on default #address-cells value =
for /plb@0/xps-spi@81818000/spidev@0
Warning (avoid_default_addr_size): Relying on default #size-cells value for=
/plb@0/xps-spi@81818000/spidev@0
The dts file comes straight from the xilinx tools with these small addition=
s made by me:
210a211,216
> pcf1: iexp@20 {
> #gpio-cells =3D <2>;
> compatible =3D "ti,pcf8574";
> reg =3D <0x20>;
> gpio-controller;
> };
228a235,240
> spidev@0 {
> compatible =3D "spidev";
> spi-max-frequency =3D <1000000>;
> reg =3D <0>;
> } ;
>
I am new to this device tree stuff and it would be really great to get some=
hints as i am currently stuck.
Also if someone knows if these i2c patches which had been partially in 2.6.=
34 are bigendian/little endian
clean, as i suspect that they are focused on support for the =B5blazes?
Thanks for your attention
ST
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: dts,i2c,pcf8574 on Xilinx XUP
2010-04-01 20:50 dts,i2c,pcf8574 on Xilinx XUP ST
@ 2010-04-01 22:14 ` Wolfram Sang
2010-04-01 22:42 ` ST
0 siblings, 1 reply; 6+ messages in thread
From: Wolfram Sang @ 2010-04-01 22:14 UTC (permalink / raw)
To: ST; +Cc: linuxppc-dev
[-- Attachment #1: Type: text/plain, Size: 470 bytes --]
On Thu, Apr 01, 2010 at 10:50:33PM +0200, ST wrote:
> Unfortunatly the i2c driver hangs the git://git.xilinx.com/linux-2.6-xlnx
> tree hard if i run i2cdetect. Also my pcf device is not listed as a device.
Is there any output before the crash? Also, the complete device tree and
bootlog may be useful.
--
Pengutronix e.K. | Wolfram Sang |
Industrial Linux Solutions | http://www.pengutronix.de/ |
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 197 bytes --]
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: dts,i2c,pcf8574 on Xilinx XUP
2010-04-01 22:14 ` Wolfram Sang
@ 2010-04-01 22:42 ` ST
2010-04-01 23:08 ` Wolfram Sang
0 siblings, 1 reply; 6+ messages in thread
From: ST @ 2010-04-01 22:42 UTC (permalink / raw)
To: Wolfram Sang; +Cc: linuxppc-dev
[-- Attachment #1: Type: Text/Plain, Size: 8559 bytes --]
Hi Wolfram
Thanks for your reply.
> Is there any output before the crash? Also, the complete device tree and
> bootlog may be useful.
Ups, forgot to attach.
The bootlog is below. There is no output or error msg of the kernel.
Its just gone: no network no nothing. There is a jtag interface but
i haven't figured out how to use that.
There is only one pcf8574 connected to the i2c bus and nothing else, so
i think that dumping the i2c bus should do no harm?
Best regards
ST
zImage starting: loaded at 0x00400000 (sp: 0x004f9fb0)
Allocating 0x220e61 bytes for kernel ...
gunzipping (0x00000000 <- 0x0040d000:0x004f8ac0)...done 0x20399c bytes
Linux/PowerPC load: console=ttyUL0 root=/dev/xsa2 init=/usr/sbin/init
Finalizing device tree... flat tree at 0x506300
[ 0.000000] Using Xilinx Virtex machine description
[ 0.000000] Linux version 2.6.32 (tstone@ligeia) (gcc version 4.3.2
(OSELAS.Toolchain-trunk) ) #2 Thu Apr 1 23:19:08 CEST 2010
[ 0.000000] Zone PFN ranges:
[ 0.000000] DMA 0x00000000 -> 0x00010000
[ 0.000000] Normal 0x00010000 -> 0x00010000
[ 0.000000] Movable zone start PFN for each node
[ 0.000000] early_node_map[1] active PFN ranges
[ 0.000000] 0: 0x00000000 -> 0x00010000
[ 0.000000] MMU: Allocated 1088 bytes of context maps for 255 contexts
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total
pages: 65024
[ 0.000000] Kernel command line: console=ttyUL0 root=/dev/xsa2
init=/usr/sbin/init
[ 0.000000] PID hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
[ 0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
[ 0.000000] Memory: 257408k/262144k available (1928k kernel code, 4452k
reserved, 136k data, 115k bss, 104k init)
[ 0.000000] Kernel virtual memory layout:
[ 0.000000] * 0xffffe000..0xfffff000 : fixmap
[ 0.000000] * 0xfde00000..0xfe000000 : consistent mem
[ 0.000000] * 0xfde00000..0xfde00000 : early ioremap
[ 0.000000] * 0xd1000000..0xfde00000 : vmalloc & ioremap
[ 0.000000] Hierarchical RCU implementation.
[ 0.000000] NR_IRQS:512
[ 0.000000] clocksource: timebase mult[1400000] shift[22] registered
[ 0.000000] Console: colour dummy device 80x25
[2797861247.029784] Mount-cache hash table entries: 512
[2797861247.038137] NET: Registered protocol family 16
[2797861247.097587] bio: create slab <bio-0> at 0
[2797861247.103850] XGpio: /plb@0/gpio@81460000: registered
[2797861247.105898] XGpio: /plb@0/gpio@81440000: registered
[2797861247.107782] XGpio: /plb@0/gpio@81420000: registered
[2797861247.109683] XGpio: /plb@0/gpio@81400000: registered
[2797861247.121074] Switching to clocksource timebase
[2797861247.123476] Switched to NOHz mode on CPU #0
[2797861247.138696] NET: Registered protocol family 2
[2797861247.139221] IP route cache hash table entries: 2048 (order: 1, 8192
bytes)
[2797861247.140429] TCP established hash table entries: 8192 (order: 4, 65536
bytes)
[2797861247.142396] TCP bind hash table entries: 8192 (order: 3, 32768 bytes)
[2797861247.143266] TCP: Hash tables configured (established 8192 bind 8192)
[2797861247.143332] TCP reno registered
[2797861247.144436] NET: Registered protocol family 1
[2797861247.183657] msgmni has been set to 503
[2797861247.184102] io scheduler noop registered (default)
[2797861247.184174] io scheduler anticipatory registered
[2797861247.343035] 84000000.serial: ttyUL0 at MMIO 0x84000003 (irq = 16) is a
uartlite
[2797861247.584681] console [ttyUL0] enabled
[2797861247.695229] brd: module loaded
[2797861247.701082] xsysace 83600000.sysace: Xilinx SystemACE revision 1.0.12
[2797861247.707889] xsysace 83600000.sysace: capacity: 15858864 sectors
[2797861247.714109] xsa: xsa1 xsa2
[2797861247.733755] Xilinx SystemACE device driver, major=254
[2797861247.741455] xilinx-xps-spi 81818000.xps-spi: at 0x81818000 mapped to
0xD101A000, irq=18
[2797861247.761947] xilinx_emaclite 81000000.ethernet: Device Tree Probing
[2797861247.768077] xilinx_emaclite 81000000.ethernet: MAC address is now 2:
0: 0: 0: 0: 0
[2797861247.778109] xilinx_emaclite 81000000.ethernet: Xilinx EmacLite at
0x81000000 mapped to 0xD10A0000, irq=19
[2797861247.801825] mice: PS/2 mouse device common for all mice
[2797861247.810511] i2c /dev entries driver
[2797861247.817952] Device Tree Probing 'i2c'
[2797861247.830658] #0 at 0x81600000 mapped to 0xD10C0000, irq=20
[2797861247.838743] pcf857x: probe of 0-0020 failed with error -22
[2797861247.845166] TCP cubic registered
[2797861247.847830] NET: Registered protocol family 17
[2797861247.860624] drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
[2797861247.882998] VFS: Mounted root (ext2 filesystem) readonly on device
254:2.
[2797861247.889377] Freeing unused kernel memory: 104k init
cat: /proc/cmdline: No such file or directory
[2797861250.818870] EXT2-fs warning: mounting unchecked fs, running e2fsck is
recommended
mounting filesystems...done.
running rc.d services...
starting udev
mounting tmpfs at /dev
creating static nodes
starting udevd...done
waiting for devices...done
syslogd starting
Starting system message bus: dbus.
starting sshd...done
starting network interfaces...
lighttpd: starting
lighttpd: done
/bin/sh: exec: line 1: /etc/init.d/rc: not found
xup login: root
root@xup:~ i2cd
i2cdetect i2cdump
root@xup:~ i2cd
i2cdetect i2cdump
root@xup:~ i2cdetect 0
WARNING! This program can confuse your I2C bus, cause data loss and worse!
I will probe file /dev/i2c-0.
I will probe address range 0x03-0x77.
Continue? [Y/n] y
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f
10: 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f
20: 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f
30:
[-- Attachment #2: virtex405-xup.dts --]
[-- Type: text/x-csrc, Size: 7265 bytes --]
/*
* Device Tree Generator version: 1.2
*
* (C) Copyright 2007-2008 Xilinx, Inc.
* (C) Copyright 2007-2008 Michal Simek
*
* Michal SIMEK <monstr@monstr.eu>
*
* 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., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
* CAUTION: This file is automatically generated by libgen.
* Version: Xilinx EDK 10.1.03 EDK_K_SP3.6
*
* XPS project directory: xps_linux
*/
/dts-v1/;
/ {
#address-cells = <1>;
#size-cells = <1>;
compatible = "xlnx,virtex405", "xlnx,virtex";
model = "testing";
DDR_SDRAM: memory@0 {
device_type = "memory";
reg = < 0x0 0x10000000 >;
} ;
alias {
ethernet0 = &Ethernet_MAC;
serial0 = &RS232_Uart_1;
} ;
chosen {
bootargs = "console=ttyUL0 root=/dev/xsa2 init=/usr/sbin/init";
linux,stdout-path = "/plb@0/serial@84000000";
} ;
cpus {
#address-cells = <1>;
#cpus = <0x1>;
#size-cells = <0>;
ppc405_0: cpu@0 {
clock-frequency = <200000000>;
compatible = "PowerPC,405", "ibm,ppc405";
d-cache-line-size = <0x20>;
d-cache-size = <0x4000>;
dcr-access-method = "native";
dcr-controller ;
device_type = "cpu";
i-cache-line-size = <0x20>;
i-cache-size = <0x4000>;
model = "PowerPC,405";
reg = <0>;
timebase-frequency = <200000000>;
xlnx,dcr-resync = <0x0>;
xlnx,deterministic-mult = <0x0>;
xlnx,disable-operand-forwarding = <0x1>;
xlnx,fastest-plb-clock = "DPLB0";
xlnx,generate-plb-timespecs = <0x1>;
xlnx,mmu-enable = <0x1>;
} ;
} ;
plb0: plb@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "xlnx,plb-v46-1.03.a", "simple-bus";
ranges ;
DDR_SDRAM: mpmc@84800000 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "xlnx,mpmc-4.03.a";
reg = < 0x84800000 0x10000 >;
} ;
DIPSWs_4Bit: gpio@81460000 {
compatible = "xlnx,xps-gpio-1.00.a";
reg = < 0x81460000 0x10000 >;
xlnx,all-inputs = <0x1>;
xlnx,all-inputs-2 = <0x0>;
xlnx,dout-default = <0x0>;
xlnx,dout-default-2 = <0x0>;
xlnx,family = "virtex2p";
xlnx,gpio-width = <0x4>;
xlnx,interrupt-present = <0x0>;
xlnx,is-bidir = <0x1>;
xlnx,is-bidir-2 = <0x1>;
xlnx,is-dual = <0x0>;
xlnx,tri-default = <0xffffffff>;
xlnx,tri-default-2 = <0xffffffff>;
} ;
Ethernet_MAC: ethernet@81000000 {
compatible = "xlnx,xps-ethernetlite-2.00.b", "xlnx,xps-ethernetlite-1.00.a";
device_type = "network";
interrupt-parent = <&xps_intc_0>;
interrupts = < 4 0 >;
local-mac-address = [ 02 00 00 00 00 00 ];
reg = < 0x81000000 0x10000 >;
xlnx,duplex = <0x1>;
xlnx,family = "virtex2p";
xlnx,rx-ping-pong = <0x1>;
xlnx,tx-ping-pong = <0x1>;
} ;
LEDs_4Bit: gpio@81440000 {
compatible = "xlnx,xps-gpio-1.00.a";
reg = < 0x81440000 0x10000 >;
xlnx,all-inputs = <0x0>;
xlnx,all-inputs-2 = <0x0>;
xlnx,dout-default = <0x0>;
xlnx,dout-default-2 = <0x0>;
xlnx,family = "virtex2p";
xlnx,gpio-width = <0x4>;
xlnx,interrupt-present = <0x0>;
xlnx,is-bidir = <0x0>;
xlnx,is-bidir-2 = <0x1>;
xlnx,is-dual = <0x0>;
xlnx,tri-default = <0xffffffff>;
xlnx,tri-default-2 = <0xffffffff>;
} ;
PushButtons_5Bit: gpio@81420000 {
compatible = "xlnx,xps-gpio-1.00.a";
reg = < 0x81420000 0x10000 >;
xlnx,all-inputs = <0x1>;
xlnx,all-inputs-2 = <0x0>;
xlnx,dout-default = <0x0>;
xlnx,dout-default-2 = <0x0>;
xlnx,family = "virtex2p";
xlnx,gpio-width = <0x5>;
xlnx,interrupt-present = <0x0>;
xlnx,is-bidir = <0x1>;
xlnx,is-bidir-2 = <0x1>;
xlnx,is-dual = <0x0>;
xlnx,tri-default = <0xffffffff>;
xlnx,tri-default-2 = <0xffffffff>;
} ;
RS232_Uart_1: serial@84000000 {
clock-frequency = <100000000>;
compatible = "xlnx,xps-uartlite-1.00.a";
current-speed = <115200>;
device_type = "serial";
interrupt-parent = <&xps_intc_0>;
interrupts = < 5 0 >;
port-number = <0>;
reg = < 0x84000000 0x10000 >;
xlnx,baudrate = <0x1c200>;
xlnx,data-bits = <0x8>;
xlnx,family = "virtex2p";
xlnx,odd-parity = <0x0>;
xlnx,use-parity = <0x0>;
} ;
SysACE_CompactFlash: sysace@83600000 {
compatible = "xlnx,xps-sysace-1.00.a";
interrupt-parent = <&xps_intc_0>;
interrupts = < 0 2 >;
reg = < 0x83600000 0x10000 >;
xlnx,family = "virtex2p";
xlnx,mem-width = <0x10>;
} ;
left_lowspeed: gpio@81400000 {
compatible = "xlnx,xps-gpio-1.00.a";
reg = < 0x81400000 0x10000 >;
xlnx,all-inputs = <0x0>;
xlnx,all-inputs-2 = <0x0>;
xlnx,dout-default = <0x0>;
xlnx,dout-default-2 = <0x0>;
xlnx,family = "virtex2p";
xlnx,gpio-width = <0x20>;
xlnx,interrupt-present = <0x0>;
xlnx,is-bidir = <0x1>;
xlnx,is-bidir-2 = <0x1>;
xlnx,is-dual = <0x0>;
xlnx,tri-default = <0xffffffff>;
xlnx,tri-default-2 = <0xffffffff>;
} ;
mdm_0: debug@84400000 {
compatible = "xlnx,mdm-1.00.d";
reg = < 0x84400000 0x10000 >;
xlnx,family = "virtex2p";
xlnx,interconnect = <0x1>;
xlnx,jtag-chain = <0x2>;
xlnx,mb-dbg-ports = <0x0>;
xlnx,uart-width = <0x8>;
xlnx,use-uart = <0x1>;
xlnx,write-fsl-ports = <0x0>;
} ;
xps_bram_if_cntlr_1: xps-bram-if-cntlr@ffffc000 {
compatible = "xlnx,xps-bram-if-cntlr-1.00.a";
reg = < 0xffffc000 0x4000 >;
xlnx,family = "virtex2p";
} ;
xps_iic_0: i2c@81600000 {
compatible = "xlnx,xps-iic-2.00.a";
interrupt-parent = <&xps_intc_0>;
interrupts = < 1 2 >;
reg = < 0x81600000 0x10000 >;
xlnx,clk-freq = <0x17d7840>;
xlnx,family = "virtex2p";
xlnx,gpo-width = <0x1>;
xlnx,iic-freq = <0x186a0>;
xlnx,scl-inertial-delay = <0x0>;
xlnx,sda-inertial-delay = <0x0>;
xlnx,ten-bit-adr = <0x0>;
pcf1: iexp@20 {
#gpio-cells = <2>;
compatible = "ti,pcf8574";
reg = <0x20>;
gpio-controller;
};
} ;
xps_intc_0: interrupt-controller@81800000 {
#interrupt-cells = <0x2>;
compatible = "xlnx,xps-intc-1.00.a";
interrupt-controller ;
reg = < 0x81800000 0x10000 >;
xlnx,num-intr-inputs = <0x6>;
} ;
xps_spi_0: xps-spi@81818000 {
compatible = "xlnx,xps-spi-2.00.b";
interrupt-parent = <&xps_intc_0>;
interrupts = < 2 2 >;
reg = < 0x81818000 0x80 >;
xlnx,family = "virtex2p";
xlnx,fifo-exist = <0x1>;
xlnx,num-ss-bits = <0x1>;
xlnx,num-transfer-bits = <0x8>;
xlnx,sck-ratio = <0x20>;
spidev@0 {
compatible = "spidev";
spi-max-frequency = <1000000>;
reg = <0>;
} ;
} ;
} ;
ppc405_0_dplb1: plb@1 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "xlnx,plb-v46-1.03.a", "simple-bus";
ranges ;
} ;
} ;
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: dts,i2c,pcf8574 on Xilinx XUP
2010-04-01 22:42 ` ST
@ 2010-04-01 23:08 ` Wolfram Sang
2010-04-04 22:28 ` ST
0 siblings, 1 reply; 6+ messages in thread
From: Wolfram Sang @ 2010-04-01 23:08 UTC (permalink / raw)
To: ST; +Cc: linuxppc-dev, linux-i2c
[-- Attachment #1: Type: text/plain, Size: 17654 bytes --]
On Fri, Apr 02, 2010 at 12:42:07AM +0200, ST wrote:
(BTW your full name in the mail header would be appreciated)
> Hi Wolfram
>
> Thanks for your reply.
> > Is there any output before the crash? Also, the complete device tree and
> > bootlog may be useful.
> Ups, forgot to attach.
>
> The bootlog is below. There is no output or error msg of the kernel.
> Its just gone: no network no nothing. There is a jtag interface but
> i haven't figured out how to use that.
>
> There is only one pcf8574 connected to the i2c bus and nothing else, so
> i think that dumping the i2c bus should do no harm?
>
> Best regards
> ST
>
> zImage starting: loaded at 0x00400000 (sp: 0x004f9fb0)
> Allocating 0x220e61 bytes for kernel ...
> gunzipping (0x00000000 <- 0x0040d000:0x004f8ac0)...done 0x20399c bytes
>
> Linux/PowerPC load: console=ttyUL0 root=/dev/xsa2 init=/usr/sbin/init
> Finalizing device tree... flat tree at 0x506300
> [ 0.000000] Using Xilinx Virtex machine description
> [ 0.000000] Linux version 2.6.32 (tstone@ligeia) (gcc version 4.3.2
> (OSELAS.Toolchain-trunk) ) #2 Thu Apr 1 23:19:08 CEST 2010
> [ 0.000000] Zone PFN ranges:
> [ 0.000000] DMA 0x00000000 -> 0x00010000
> [ 0.000000] Normal 0x00010000 -> 0x00010000
> [ 0.000000] Movable zone start PFN for each node
> [ 0.000000] early_node_map[1] active PFN ranges
> [ 0.000000] 0: 0x00000000 -> 0x00010000
> [ 0.000000] MMU: Allocated 1088 bytes of context maps for 255 contexts
> [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total
> pages: 65024
> [ 0.000000] Kernel command line: console=ttyUL0 root=/dev/xsa2
> init=/usr/sbin/init
> [ 0.000000] PID hash table entries: 1024 (order: 0, 4096 bytes)
> [ 0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
> [ 0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
> [ 0.000000] Memory: 257408k/262144k available (1928k kernel code, 4452k
> reserved, 136k data, 115k bss, 104k init)
> [ 0.000000] Kernel virtual memory layout:
> [ 0.000000] * 0xffffe000..0xfffff000 : fixmap
> [ 0.000000] * 0xfde00000..0xfe000000 : consistent mem
> [ 0.000000] * 0xfde00000..0xfde00000 : early ioremap
> [ 0.000000] * 0xd1000000..0xfde00000 : vmalloc & ioremap
> [ 0.000000] Hierarchical RCU implementation.
> [ 0.000000] NR_IRQS:512
> [ 0.000000] clocksource: timebase mult[1400000] shift[22] registered
> [ 0.000000] Console: colour dummy device 80x25
> [2797861247.029784] Mount-cache hash table entries: 512
> [2797861247.038137] NET: Registered protocol family 16
> [2797861247.097587] bio: create slab <bio-0> at 0
> [2797861247.103850] XGpio: /plb@0/gpio@81460000: registered
> [2797861247.105898] XGpio: /plb@0/gpio@81440000: registered
> [2797861247.107782] XGpio: /plb@0/gpio@81420000: registered
> [2797861247.109683] XGpio: /plb@0/gpio@81400000: registered
> [2797861247.121074] Switching to clocksource timebase
> [2797861247.123476] Switched to NOHz mode on CPU #0
> [2797861247.138696] NET: Registered protocol family 2
> [2797861247.139221] IP route cache hash table entries: 2048 (order: 1, 8192
> bytes)
> [2797861247.140429] TCP established hash table entries: 8192 (order: 4, 65536
> bytes)
> [2797861247.142396] TCP bind hash table entries: 8192 (order: 3, 32768 bytes)
> [2797861247.143266] TCP: Hash tables configured (established 8192 bind 8192)
> [2797861247.143332] TCP reno registered
> [2797861247.144436] NET: Registered protocol family 1
> [2797861247.183657] msgmni has been set to 503
> [2797861247.184102] io scheduler noop registered (default)
> [2797861247.184174] io scheduler anticipatory registered
> [2797861247.343035] 84000000.serial: ttyUL0 at MMIO 0x84000003 (irq = 16) is a
> uartlite
> [2797861247.584681] console [ttyUL0] enabled
> [2797861247.695229] brd: module loaded
> [2797861247.701082] xsysace 83600000.sysace: Xilinx SystemACE revision 1.0.12
> [2797861247.707889] xsysace 83600000.sysace: capacity: 15858864 sectors
> [2797861247.714109] xsa: xsa1 xsa2
> [2797861247.733755] Xilinx SystemACE device driver, major=254
> [2797861247.741455] xilinx-xps-spi 81818000.xps-spi: at 0x81818000 mapped to
> 0xD101A000, irq=18
> [2797861247.761947] xilinx_emaclite 81000000.ethernet: Device Tree Probing
> [2797861247.768077] xilinx_emaclite 81000000.ethernet: MAC address is now 2:
> 0: 0: 0: 0: 0
> [2797861247.778109] xilinx_emaclite 81000000.ethernet: Xilinx EmacLite at
> 0x81000000 mapped to 0xD10A0000, irq=19
> [2797861247.801825] mice: PS/2 mouse device common for all mice
> [2797861247.810511] i2c /dev entries driver
> [2797861247.817952] Device Tree Probing 'i2c'
> [2797861247.830658] #0 at 0x81600000 mapped to 0xD10C0000, irq=20
> [2797861247.838743] pcf857x: probe of 0-0020 failed with error -22
Doesn't look good here. Do you have the latest version of the driver?
(CCing i2c)
> [2797861247.845166] TCP cubic registered
> [2797861247.847830] NET: Registered protocol family 17
> [2797861247.860624] drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
> [2797861247.882998] VFS: Mounted root (ext2 filesystem) readonly on device
> 254:2.
> [2797861247.889377] Freeing unused kernel memory: 104k init
> cat: /proc/cmdline: No such file or directory
> [2797861250.818870] EXT2-fs warning: mounting unchecked fs, running e2fsck is
> recommended
> mounting filesystems...done.
> running rc.d services...
> starting udev
> mounting tmpfs at /dev
> creating static nodes
> starting udevd...done
> waiting for devices...done
> syslogd starting
> Starting system message bus: dbus.
> starting sshd...done
> starting network interfaces...
> lighttpd: starting
> lighttpd: done
> /bin/sh: exec: line 1: /etc/init.d/rc: not found
>
> xup login: root
> root@xup:~ i2cd
> i2cdetect i2cdump
> root@xup:~ i2cd
> i2cdetect i2cdump
> root@xup:~ i2cdetect 0
> WARNING! This program can confuse your I2C bus, cause data loss and worse!
> I will probe file /dev/i2c-0.
> I will probe address range 0x03-0x77.
> Continue? [Y/n] y
> 0 1 2 3 4 5 6 7 8 9 a b c d e f
> 00: 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f
> 10: 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f
> 20: 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f
> 30:
> /*
> * Device Tree Generator version: 1.2
> *
> * (C) Copyright 2007-2008 Xilinx, Inc.
> * (C) Copyright 2007-2008 Michal Simek
> *
> * Michal SIMEK <monstr@monstr.eu>
> *
> * 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., 59 Temple Place, Suite 330, Boston,
> * MA 02111-1307 USA
> *
> * CAUTION: This file is automatically generated by libgen.
> * Version: Xilinx EDK 10.1.03 EDK_K_SP3.6
> *
> * XPS project directory: xps_linux
> */
>
> /dts-v1/;
> / {
> #address-cells = <1>;
> #size-cells = <1>;
> compatible = "xlnx,virtex405", "xlnx,virtex";
> model = "testing";
> DDR_SDRAM: memory@0 {
> device_type = "memory";
> reg = < 0x0 0x10000000 >;
> } ;
> alias {
> ethernet0 = &Ethernet_MAC;
> serial0 = &RS232_Uart_1;
> } ;
> chosen {
> bootargs = "console=ttyUL0 root=/dev/xsa2 init=/usr/sbin/init";
> linux,stdout-path = "/plb@0/serial@84000000";
> } ;
> cpus {
> #address-cells = <1>;
> #cpus = <0x1>;
> #size-cells = <0>;
> ppc405_0: cpu@0 {
> clock-frequency = <200000000>;
> compatible = "PowerPC,405", "ibm,ppc405";
> d-cache-line-size = <0x20>;
> d-cache-size = <0x4000>;
> dcr-access-method = "native";
> dcr-controller ;
> device_type = "cpu";
> i-cache-line-size = <0x20>;
> i-cache-size = <0x4000>;
> model = "PowerPC,405";
> reg = <0>;
> timebase-frequency = <200000000>;
> xlnx,dcr-resync = <0x0>;
> xlnx,deterministic-mult = <0x0>;
> xlnx,disable-operand-forwarding = <0x1>;
> xlnx,fastest-plb-clock = "DPLB0";
> xlnx,generate-plb-timespecs = <0x1>;
> xlnx,mmu-enable = <0x1>;
> } ;
> } ;
> plb0: plb@0 {
> #address-cells = <1>;
> #size-cells = <1>;
> compatible = "xlnx,plb-v46-1.03.a", "simple-bus";
> ranges ;
> DDR_SDRAM: mpmc@84800000 {
> #address-cells = <1>;
> #size-cells = <1>;
> compatible = "xlnx,mpmc-4.03.a";
> reg = < 0x84800000 0x10000 >;
> } ;
> DIPSWs_4Bit: gpio@81460000 {
> compatible = "xlnx,xps-gpio-1.00.a";
> reg = < 0x81460000 0x10000 >;
> xlnx,all-inputs = <0x1>;
> xlnx,all-inputs-2 = <0x0>;
> xlnx,dout-default = <0x0>;
> xlnx,dout-default-2 = <0x0>;
> xlnx,family = "virtex2p";
> xlnx,gpio-width = <0x4>;
> xlnx,interrupt-present = <0x0>;
> xlnx,is-bidir = <0x1>;
> xlnx,is-bidir-2 = <0x1>;
> xlnx,is-dual = <0x0>;
> xlnx,tri-default = <0xffffffff>;
> xlnx,tri-default-2 = <0xffffffff>;
> } ;
> Ethernet_MAC: ethernet@81000000 {
> compatible = "xlnx,xps-ethernetlite-2.00.b", "xlnx,xps-ethernetlite-1.00.a";
> device_type = "network";
> interrupt-parent = <&xps_intc_0>;
> interrupts = < 4 0 >;
> local-mac-address = [ 02 00 00 00 00 00 ];
> reg = < 0x81000000 0x10000 >;
> xlnx,duplex = <0x1>;
> xlnx,family = "virtex2p";
> xlnx,rx-ping-pong = <0x1>;
> xlnx,tx-ping-pong = <0x1>;
> } ;
> LEDs_4Bit: gpio@81440000 {
> compatible = "xlnx,xps-gpio-1.00.a";
> reg = < 0x81440000 0x10000 >;
> xlnx,all-inputs = <0x0>;
> xlnx,all-inputs-2 = <0x0>;
> xlnx,dout-default = <0x0>;
> xlnx,dout-default-2 = <0x0>;
> xlnx,family = "virtex2p";
> xlnx,gpio-width = <0x4>;
> xlnx,interrupt-present = <0x0>;
> xlnx,is-bidir = <0x0>;
> xlnx,is-bidir-2 = <0x1>;
> xlnx,is-dual = <0x0>;
> xlnx,tri-default = <0xffffffff>;
> xlnx,tri-default-2 = <0xffffffff>;
> } ;
> PushButtons_5Bit: gpio@81420000 {
> compatible = "xlnx,xps-gpio-1.00.a";
> reg = < 0x81420000 0x10000 >;
> xlnx,all-inputs = <0x1>;
> xlnx,all-inputs-2 = <0x0>;
> xlnx,dout-default = <0x0>;
> xlnx,dout-default-2 = <0x0>;
> xlnx,family = "virtex2p";
> xlnx,gpio-width = <0x5>;
> xlnx,interrupt-present = <0x0>;
> xlnx,is-bidir = <0x1>;
> xlnx,is-bidir-2 = <0x1>;
> xlnx,is-dual = <0x0>;
> xlnx,tri-default = <0xffffffff>;
> xlnx,tri-default-2 = <0xffffffff>;
> } ;
> RS232_Uart_1: serial@84000000 {
> clock-frequency = <100000000>;
> compatible = "xlnx,xps-uartlite-1.00.a";
> current-speed = <115200>;
> device_type = "serial";
> interrupt-parent = <&xps_intc_0>;
> interrupts = < 5 0 >;
> port-number = <0>;
> reg = < 0x84000000 0x10000 >;
> xlnx,baudrate = <0x1c200>;
> xlnx,data-bits = <0x8>;
> xlnx,family = "virtex2p";
> xlnx,odd-parity = <0x0>;
> xlnx,use-parity = <0x0>;
> } ;
> SysACE_CompactFlash: sysace@83600000 {
> compatible = "xlnx,xps-sysace-1.00.a";
> interrupt-parent = <&xps_intc_0>;
> interrupts = < 0 2 >;
> reg = < 0x83600000 0x10000 >;
> xlnx,family = "virtex2p";
> xlnx,mem-width = <0x10>;
> } ;
> left_lowspeed: gpio@81400000 {
> compatible = "xlnx,xps-gpio-1.00.a";
> reg = < 0x81400000 0x10000 >;
> xlnx,all-inputs = <0x0>;
> xlnx,all-inputs-2 = <0x0>;
> xlnx,dout-default = <0x0>;
> xlnx,dout-default-2 = <0x0>;
> xlnx,family = "virtex2p";
> xlnx,gpio-width = <0x20>;
> xlnx,interrupt-present = <0x0>;
> xlnx,is-bidir = <0x1>;
> xlnx,is-bidir-2 = <0x1>;
> xlnx,is-dual = <0x0>;
> xlnx,tri-default = <0xffffffff>;
> xlnx,tri-default-2 = <0xffffffff>;
> } ;
> mdm_0: debug@84400000 {
> compatible = "xlnx,mdm-1.00.d";
> reg = < 0x84400000 0x10000 >;
> xlnx,family = "virtex2p";
> xlnx,interconnect = <0x1>;
> xlnx,jtag-chain = <0x2>;
> xlnx,mb-dbg-ports = <0x0>;
> xlnx,uart-width = <0x8>;
> xlnx,use-uart = <0x1>;
> xlnx,write-fsl-ports = <0x0>;
> } ;
> xps_bram_if_cntlr_1: xps-bram-if-cntlr@ffffc000 {
> compatible = "xlnx,xps-bram-if-cntlr-1.00.a";
> reg = < 0xffffc000 0x4000 >;
> xlnx,family = "virtex2p";
> } ;
> xps_iic_0: i2c@81600000 {
> compatible = "xlnx,xps-iic-2.00.a";
> interrupt-parent = <&xps_intc_0>;
> interrupts = < 1 2 >;
> reg = < 0x81600000 0x10000 >;
> xlnx,clk-freq = <0x17d7840>;
> xlnx,family = "virtex2p";
> xlnx,gpo-width = <0x1>;
> xlnx,iic-freq = <0x186a0>;
> xlnx,scl-inertial-delay = <0x0>;
> xlnx,sda-inertial-delay = <0x0>;
> xlnx,ten-bit-adr = <0x0>;
Have you checked the values? There is surely
#address-cells = <1>;
#size-cells = <0>;
missing here, but that shouldn't cause your problems IMHO. I probably can't
help any further, never used Xilinx so far (you have the newest version of the
dts-generator?).
> pcf1: iexp@20 {
> #gpio-cells = <2>;
> compatible = "ti,pcf8574";
> reg = <0x20>;
> gpio-controller;
> };
> } ;
> xps_intc_0: interrupt-controller@81800000 {
> #interrupt-cells = <0x2>;
> compatible = "xlnx,xps-intc-1.00.a";
> interrupt-controller ;
> reg = < 0x81800000 0x10000 >;
> xlnx,num-intr-inputs = <0x6>;
> } ;
> xps_spi_0: xps-spi@81818000 {
> compatible = "xlnx,xps-spi-2.00.b";
> interrupt-parent = <&xps_intc_0>;
> interrupts = < 2 2 >;
> reg = < 0x81818000 0x80 >;
> xlnx,family = "virtex2p";
> xlnx,fifo-exist = <0x1>;
> xlnx,num-ss-bits = <0x1>;
> xlnx,num-transfer-bits = <0x8>;
> xlnx,sck-ratio = <0x20>;
> spidev@0 {
> compatible = "spidev";
> spi-max-frequency = <1000000>;
> reg = <0>;
> } ;
>
> } ;
> } ;
> ppc405_0_dplb1: plb@1 {
> #address-cells = <1>;
> #size-cells = <1>;
> compatible = "xlnx,plb-v46-1.03.a", "simple-bus";
> ranges ;
> } ;
> } ;
--
Pengutronix e.K. | Wolfram Sang |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: dts,i2c,pcf8574 on Xilinx XUP
2010-04-01 23:08 ` Wolfram Sang
@ 2010-04-04 22:28 ` ST
2010-04-04 23:51 ` Wolfram Sang
0 siblings, 1 reply; 6+ messages in thread
From: ST @ 2010-04-04 22:28 UTC (permalink / raw)
To: linuxppc-dev
Hi
> (BTW your full name in the mail header would be appreciated)
If the internet would be forgetting more...
=20
> > [2797861247.810511] i2c /dev entries driver
> > [2797861247.817952] Device Tree Probing 'i2c'
> > [2797861247.830658] #0 at 0x81600000 mapped to 0xD10C0000, irq=3D20
> > [2797861247.838743] pcf857x: probe of 0-0020 failed with error -22
>=20
> Doesn't look good here. Do you have the latest version of the driver?
> (CCing i2c)
Mh, i just saw that the i2c-xii.h file is now in 2.6.34. I copied them to m=
y=20
2.6.32-xlnx tree. So i think this is the most recent driver (albeit not the=
most
recent kernel 2.6.32 due to the fact that vanilla doesn't boot on my machin=
e).
> > xps_iic_0: i2c@81600000 {
> > compatible =3D "xlnx,xps-iic-2.00.a";
> > interrupt-parent =3D <&xps_intc_0>;
> > interrupts =3D < 1 2 >;
> > reg =3D < 0x81600000 0x10000 >;
> > xlnx,clk-freq =3D <0x17d7840>;
> > xlnx,family =3D "virtex2p";
> > xlnx,gpo-width =3D <0x1>;
> > xlnx,iic-freq =3D <0x186a0>;
> > xlnx,scl-inertial-delay =3D <0x0>;
> > xlnx,sda-inertial-delay =3D <0x0>;
> > xlnx,ten-bit-adr =3D <0x0>;
>=20
> Have you checked the values? There is surely
>=20
> #address-cells =3D <1>;
> #size-cells =3D <0>;
>=20
> missing here, but that shouldn't cause your problems IMHO. I probably can=
't
> help any further, never used Xilinx so far (you have the newest version of
> the dts-generator?).
The messages come from dts-v1.1.0 included in ptxdist-2010.03.0. The warnin=
gs are gone
after inserting your suggested lines into the dts file. Thanks for that hin=
t! However the error=20
that no PCF devices are found on the bus still persists. However there is a=
bsolutly no i2c traffic=20
on the i2c pins while it probes for the pcf device, so there clearly is s.t=
=2E amiss.
Reconfiguring the pins to gpio pins works as expected, so the raw hardware =
(not the "soft" hw)
is working.=20
Possible causes i see:
* i did an error when backporting these changes. But since there was only a=
kconfig entry besides=20
adding the c and header file, this would be still possible.
* I did some error in building the hardware.
* The i2c-xii driver is not working on powerpc hardware (only =B5blaze).
If anybody has some suggestions or knows that the i2c-xii driver
works on powerpc would be really happy to know.
Concerning the xilinx xup board, i am kind of frustrated: There is no suppo=
rt for newer=20
design tools than 10.1 [1]. Then there had been a regression in the systhes=
is tools which=20
couldn't handle 512 Mb memory sticks anymore (works with 256Mb). Then
the git tree is only sometimes online? There is no i2c (compiling) driver f=
or their stuff=20
which is then added by Intel? So Wolfram you can probably consider yourself=
lucky ;-).
Thanks
ST
[1] http://www.digilentinc.com/Products/Detail.cfm?NavPath=3D2,400,794&Prod=
=3DXUPV2P
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: dts,i2c,pcf8574 on Xilinx XUP
2010-04-04 22:28 ` ST
@ 2010-04-04 23:51 ` Wolfram Sang
0 siblings, 0 replies; 6+ messages in thread
From: Wolfram Sang @ 2010-04-04 23:51 UTC (permalink / raw)
To: ST; +Cc: linuxppc-dev
[-- Attachment #1: Type: text/plain, Size: 378 bytes --]
On Mon, Apr 05, 2010 at 12:28:31AM +0200, ST wrote:
> Hi
> > (BTW your full name in the mail header would be appreciated)
> If the internet would be forgetting more...
Kernel development is intentionally public.
--
Pengutronix e.K. | Wolfram Sang |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2010-04-04 23:52 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2010-04-01 20:50 dts,i2c,pcf8574 on Xilinx XUP ST
2010-04-01 22:14 ` Wolfram Sang
2010-04-01 22:42 ` ST
2010-04-01 23:08 ` Wolfram Sang
2010-04-04 22:28 ` ST
2010-04-04 23:51 ` Wolfram Sang
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