* Re: dts,i2c,pcf8574 on Xilinx XUP
[not found] ` <201004020042.08010.st-RMATFckTnmH0Uw/JJZnAuRvVK+yQ3ZXh@public.gmane.org>
@ 2010-04-01 23:08 ` Wolfram Sang
0 siblings, 0 replies; only message in thread
From: Wolfram Sang @ 2010-04-01 23:08 UTC (permalink / raw)
To: ST; +Cc: linuxppc-dev-uLR06cmDAlY/bJ5BZ2RsiQ,
linux-i2c-u79uwXL29TY76Z2rM5mHXA
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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-pSz03upnqPeHXe+LvDLADg@public.gmane.org>
> *
> * 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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