* 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/ | [-- 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 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/ | [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 197 bytes --] ^ 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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