From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from wipro-blr-out02.wipro.com (wipro-blr-out02.wipro.com [203.91.198.75]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id C6417B6F69 for ; Fri, 5 Aug 2011 15:45:14 +1000 (EST) MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01CC5330.EF8B1672" Subject: FW: Ethernet driver WR linux Date: Fri, 5 Aug 2011 11:01:32 +0530 Message-ID: <07ACDFB8ECA8EF47863A613BC01BBB220344E2AB@HYD-MKD-MBX02.wipro.com> From: To: List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , This is a multi-part message in MIME format. ------_=_NextPart_001_01CC5330.EF8B1672 Content-Type: text/plain; charset="us-ascii" content-transfer-encoding: quoted-printable Hi I have bringup WR linux 2.6.38 on a custom mpc8247 board. Not able to configure the ipaddress. When I boot my linux kernel I get the below message. Also I am using the fec 1. The fec is not getting initialized. fs_enet.c:v1.0 (Aug 8, 2005) BB MII Bus: Cannot register as MDIO bus fsl-bb-mdio: probe of fsl-bb-mdio.0 failed with error -1 BB MII Bus: Cannot register as MDIO bus fsl-bb-mdio: probe of fsl-bb-mdio.1 failed with error -1 I have enabled the following: CONFIG_NET_ETHERNET=3Dy CONFIG_MII=3Dy CONFIG_FS_ENET=3Dy # CONFIG_FS_ENET_HAS_SCC is not set CONFIG_FS_ENET_HAS_FCC=3Dy Regards, Smitha Please do not print this email unless it is absolutely necessary. =0A= =0A= The information contained in this electronic message and any attachments to= this message are intended for the exclusive use of the addressee(s) and may= contain proprietary, confidential or privileged information. If you are not= the intended recipient, you should not disseminate, distribute or copy this= e-mail. Please notify the sender immediately and destroy all copies of this= message and any attachments. =0A= =0A= WARNING: Computer viruses can be transmitted via email. The recipient should= check this email and any attachments for the presence of viruses. The compa= ny accepts no liability for any damage caused by any virus transmitted by th= is email. =0A= =0A= www.wipro.com ------_=_NextPart_001_01CC5330.EF8B1672 Content-Type: text/html; charset="us-ascii" content-transfer-encoding: quoted-printable

I have bringup WR linux 2.6.38 on a custom mpc8247 board. Not able to configure the ipaddress. When I boot my linux kernel I get the below message.

Also= I am using the fec 1. The fec is not getting initialized.

fs_enet.c:= v1.0 (Aug 8, 2005)
BB MII Bus: Cannot register as MDIO bus
fsl-bb-mdio: probe of= fsl-bb-mdio.0 failed with error -1
BB MII Bus: Cannot register as MDIO bus
fsl-bb-mdio: probe of fsl-bb-mdio.1 failed with error -1

I have ena= bled the following:

CONFIG_NET_ETHERNET=3Dy

CONFIG_MII=3Dy

CONFIG_FS_ENET=3Dy

# CONFIG_FS_ENET_HAS_SCC is not set

CONFIG_FS_ENET_HAS_FCC=3Dy

Regards,
Smitha

= Please do not print this email unl= ess it is absolutely necessary.

=0A= =0A= =0A=

The information contained in this electronic message and any attachments= to this message are intended for the exclusive use of the addressee(s) and= may contain proprietary, confidential or privileged information. If you are= not the intended recipient, you should not disseminate, distribute or copy= this e-mail. Please notify the sender immediately and destroy all copies of= this message and any attachments.

=0A= =0A=

WARNING: Computer viruses can be transmitted via email. The recipient sho= uld check this email and any attachments for the presence of viruses. The co= mpany accepts no liability for any damage caused by any virus transmitted by= this email.

=0A=

=0A= www.wipro.com=0A=

------_=_NextPart_001_01CC5330.EF8B1672-- From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from VA3EHSOBE001.bigfish.com (va3ehsobe001.messaging.microsoft.com [216.32.180.11]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (Client CN "mail.global.frontbridge.com", Issuer "Microsoft Secure Server Authority" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id 80F26B6F69 for ; Sat, 6 Aug 2011 04:12:23 +1000 (EST) Received: from mail52-va3 (localhost.localdomain [127.0.0.1]) by mail52-va3-R.bigfish.com (Postfix) with ESMTP id D1101E9840C for ; Fri, 5 Aug 2011 18:12:17 +0000 (UTC) Message-ID: <4E3C3270.2010705@freescale.com> Date: Fri, 5 Aug 2011 13:12:00 -0500 From: Scott Wood MIME-Version: 1.0 To: Subject: Re: FW: Ethernet driver WR linux References: <07ACDFB8ECA8EF47863A613BC01BBB220344E2AB@HYD-MKD-MBX02.wipro.com> In-Reply-To: <07ACDFB8ECA8EF47863A613BC01BBB220344E2AB@HYD-MKD-MBX02.wipro.com> Content-Type: text/plain; charset="ISO-8859-1" Cc: linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 08/05/2011 12:31 AM, smitha.vanga@wipro.com wrote: > Hi > > I have bringup WR linux 2.6.38 on a custom mpc8247 board. Not able to > configure the ipaddress. When I boot my linux kernel I get the below > message. > Also I am using the fec 1. The fec is not getting initialized. > fs_enet.c:v1.0 (Aug 8, 2005) > BB MII Bus: Cannot register as MDIO bus > fsl-bb-mdio: probe of fsl-bb-mdio.0 failed with error -1 > BB MII Bus: Cannot register as MDIO bus > fsl-bb-mdio: probe of fsl-bb-mdio.1 failed with error -1 > I have enabled the following: > > > CONFIG_NET_ETHERNET=y > > CONFIG_MII=y > > CONFIG_FS_ENET=y > > # CONFIG_FS_ENET_HAS_SCC is not set > > CONFIG_FS_ENET_HAS_FCC=y Can you attach your device tree? What sort of mdio do you have on your board? > *Please do not print this email unless it is absolutely necessary. * > > The information contained in this electronic message and any attachments > to this message are intended for the exclusive use of the addressee(s) > and may contain proprietary, confidential or privileged information. If > you are not the intended recipient, you should not disseminate, > distribute or copy this e-mail. Please notify the sender immediately and > destroy all copies of this message and any attachments. > > WARNING: Computer viruses can be transmitted via email. The recipient > should check this email and any attachments for the presence of viruses. > The company accepts no liability for any damage caused by any virus > transmitted by this email. > > www.wipro.com Is there any way you can turn this crud off? -Scott From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from wipro-blr-out02.wipro.com (wipro-blr-out02.wipro.com [203.91.198.75]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 0328FB6F62 for ; Mon, 8 Aug 2011 15:53:11 +1000 (EST) MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Subject: RE: FW: Ethernet driver WR linux Date: Mon, 8 Aug 2011 11:23:02 +0530 Message-ID: <07ACDFB8ECA8EF47863A613BC01BBB220344E6CD@HYD-MKD-MBX02.wipro.com> In-Reply-To: <4E3C3270.2010705@freescale.com> From: To: Cc: linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi Scott, Below is the .dts file. My board is based on mpc8247. Currently using FCC1. /* * MPC8272 EPN412 Device Tree Source * * Copyright 2005 Freescale Semiconductor Inc. * * 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. */ / { model =3D "MPC8247 EPN412"; compatible =3D "MPC82XX"; #address-cells =3D <1>; #size-cells =3D <1>; linux,phandle =3D <100>; cpus { #cpus =3D <1>; #address-cells =3D <1>; #size-cells =3D <0>; linux,phandle =3D <200>; PowerPC,8247@0 { device_type =3D "cpu"; reg =3D <0>; d-cache-line-size =3D <20>; // 32 bytes i-cache-line-size =3D <20>; // 32 bytes d-cache-size =3D <4000>; // L1, 16K i-cache-size =3D <4000>; // L1, 16K timebase-frequency =3D <0>; bus-frequency =3D <0>; clock-frequency =3D <0>; 32-bit; linux,phandle =3D <201>; }; }; interrupt-controller@f8200000 { linux,phandle =3D ; #address-cells =3D <0>; #interrupt-cells =3D <2>; interrupt-controller; reg =3D ; built-in; device_type =3D "pci-pic"; }; memory { device_type =3D "memory"; linux,phandle =3D <300>; reg =3D <00000000 4000000>; }; soc8272@f0000000 { #address-cells =3D <1>; #size-cells =3D <1>; #interrupt-cells =3D <2>; device_type =3D "soc"; ranges =3D <00000000 f0000000 00053000>; reg =3D ; cpm@119c0{ linux,phandle =3D ; #address-cells =3D <1>; #size-cells =3D <1>; #interrupt-cells =3D <2>; device_type =3D "cpm"; model =3D "CPM2"; ranges =3D <00000000 00000000 20000>; reg =3D <0 20000>; command-proc =3D <119c0>; brg-frequency =3D ; cpm_clk =3D <7F385C0>; scc@11a00 { device_type =3D "serial"; compatible =3D "cpm_uart"; model =3D "SCC"; device-id =3D <1>; reg =3D <11a00 20 8000 100>; current-speed =3D <2580>; interrupts =3D <28 2>; interrupt-parent =3D <10c00>; clock-setup =3D <0 00ffffff>; rx-clock =3D <1>; tx-clock =3D <1>; }; mdio@10d40 { device_type =3D "mdio"; compatible =3D "fs_enet"; reg =3D <0 0>; linux,phandle =3D <24520>; #address-cells =3D <1>; #size-cells =3D <0>; ethernet-phy@0 { linux,phandle =3D <2452000>; interrupt-parent =3D <10c00>; interrupts =3D <17 4>; reg =3D <0>; bitbang =3D [ 12 12 13 02 02 01 ]; device_type =3D "ethernet-phy"; }; }; ethernet@11300 { #address-cells =3D <1>; #size-cells =3D <0>; device_type =3D "network"; device-id =3D <1>; compatible =3D "fs_enet"; model =3D "FCC"; reg =3D <11300 20 8400 100 11380 30>; mac-address =3D [ 00 e0 ee 00 05 2e ]; interrupts =3D <20 2>; interrupt-parent =3D <10c00>; phy-handle =3D <2452000>; rx-clock =3D <13>; tx-clock =3D <12>; }; }; interrupt-controller@10c00 { linux,phandle =3D <10c00>; #address-cells =3D <0>; #interrupt-cells =3D <2>; interrupt-controller; reg =3D <10c00 80>; built-in; device_type =3D "cpm-pic"; compatible =3D "CPM2"; }; flash@fe000000 { device_type =3D "rom"; compatible =3D "direct-mapped"; probe-type =3D "CFI"; reg =3D ; bank-width =3D <1>; partitions =3D <00780000 00080000 00770000 00010000 00760000 00010000 00750000 00010000>; partition-names =3D "u-boot\0u-boot env1\0u-boot env2\0id data"; }; }; }; Regards, Smitha Please do not print this email unless it is absolutely necessary. =0A= =0A= The information contained in this electronic message and any attachments to= this message are intended for the exclusive use of the addressee(s) and may= contain proprietary, confidential or privileged information. If you are not= the intended recipient, you should not disseminate, distribute or copy this= e-mail. Please notify the sender immediately and destroy all copies of this= message and any attachments. =0A= =0A= WARNING: Computer viruses can be transmitted via email. The recipient should= check this email and any attachments for the presence of viruses. The compa= ny accepts no liability for any damage caused by any virus transmitted by th= is email. =0A= =0A= www.wipro.com From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from AM1EHSOBE004.bigfish.com (am1ehsobe004.messaging.microsoft.com [213.199.154.207]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (Client CN "mail.global.frontbridge.com", Issuer "Microsoft Secure Server Authority" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id B9FE7B6F76 for ; Tue, 9 Aug 2011 06:56:06 +1000 (EST) Received: from mail40-am1 (localhost.localdomain [127.0.0.1]) by mail40-am1-R.bigfish.com (Postfix) with ESMTP id EF98BE681EA for ; Mon, 8 Aug 2011 20:55:57 +0000 (UTC) Message-ID: <4E404D1F.6020503@freescale.com> Date: Mon, 8 Aug 2011 15:54:55 -0500 From: Scott Wood MIME-Version: 1.0 To: Subject: Re: FW: Ethernet driver WR linux References: <07ACDFB8ECA8EF47863A613BC01BBB220344E6CD@HYD-MKD-MBX02.wipro.com> In-Reply-To: <07ACDFB8ECA8EF47863A613BC01BBB220344E6CD@HYD-MKD-MBX02.wipro.com> Content-Type: text/plain; charset="ISO-8859-1" Cc: linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 08/08/2011 12:53 AM, smitha.vanga@wipro.com wrote: > > Hi Scott, > > Below is the .dts file. My board is based on mpc8247. Currently using > FCC1. This device tree is based on something very short-lived when 82xx support was first being worked on for 82xx, around 2.6.24 or so. Please redo it from scratch based on what is in the current kernel. -Scott From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from wipro-blr-out01.wipro.com (wipro-blr-out01.wipro.com [203.91.198.74]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 27EB8B6F81 for ; Tue, 9 Aug 2011 15:47:08 +1000 (EST) MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Subject: RE: FW: Ethernet driver WR linux Date: Tue, 9 Aug 2011 11:16:54 +0530 Message-ID: <07ACDFB8ECA8EF47863A613BC01BBB220344EACF@HYD-MKD-MBX02.wipro.com> In-Reply-To: <4E404D1F.6020503@freescale.com> From: To: Cc: linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Thank Scott. I am working on a legacy project Which is using 2.6.21 linux kernel so the device tree is based on that. Can you let me why the probe error of the driver happens. So that I can keep a patch in the code.Or What exacly in the device tree it is missing. That would be of great help. Thanks & Regards, Smitha -----Original Message----- From: Scott Wood [mailto:scottwood@freescale.com] Sent: Tuesday, August 09, 2011 2:25 AM To: Smitha Vanga (WT01 - GMT-Telecom Equipment) Cc: linuxppc-dev@lists.ozlabs.org Subject: Re: FW: Ethernet driver WR linux On 08/08/2011 12:53 AM, smitha.vanga@wipro.com wrote: > > Hi Scott, > > Below is the .dts file. My board is based on mpc8247. Currently using > FCC1. This device tree is based on something very short-lived when 82xx support was first being worked on for 82xx, around 2.6.24 or so. Please redo it from scratch based on what is in the current kernel. -Scott Please do not print this email unless it is absolutely necessary. =0A= =0A= The information contained in this electronic message and any attachments to= this message are intended for the exclusive use of the addressee(s) and may= contain proprietary, confidential or privileged information. If you are not= the intended recipient, you should not disseminate, distribute or copy this= e-mail. Please notify the sender immediately and destroy all copies of this= message and any attachments. =0A= =0A= WARNING: Computer viruses can be transmitted via email. The recipient should= check this email and any attachments for the presence of viruses. The compa= ny accepts no liability for any damage caused by any virus transmitted by th= is email. =0A= =0A= www.wipro.com From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from TX2EHSOBE003.bigfish.com (tx2ehsobe002.messaging.microsoft.com [65.55.88.12]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (Client CN "mail.global.frontbridge.com", Issuer "Microsoft Secure Server Authority" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id 23306B6F00 for ; Wed, 10 Aug 2011 03:56:47 +1000 (EST) Received: from mail5-tx2 (localhost.localdomain [127.0.0.1]) by mail5-tx2-R.bigfish.com (Postfix) with ESMTP id F09391538222 for ; Tue, 9 Aug 2011 17:56:37 +0000 (UTC) Message-ID: <4E4174D1.5060408@freescale.com> Date: Tue, 9 Aug 2011 12:56:33 -0500 From: Scott Wood MIME-Version: 1.0 To: Subject: Re: FW: Ethernet driver WR linux References: <07ACDFB8ECA8EF47863A613BC01BBB220344EACF@HYD-MKD-MBX02.wipro.com> In-Reply-To: <07ACDFB8ECA8EF47863A613BC01BBB220344EACF@HYD-MKD-MBX02.wipro.com> Content-Type: text/plain; charset="ISO-8859-1" Cc: linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 08/09/2011 12:46 AM, smitha.vanga@wipro.com wrote: > Thank Scott. I am working on a legacy project Which is using 2.6.21 > linux kernel so the device tree is based on that. Your original e-mail said you were using 2.6.38 ("I have bringup WR linux 2.6.38 on a custom mpc8247 board"). > Can you let me why the probe error of the driver happens. No. There were a lot of fixes and improvements that went into this code since then, including removing hardcoded assumptions about the hardware that are described in the device tree with the current binding. If you don't want the fixes that come with a newer version, you're on your own repeating that work. -Scott From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from wipro-blr-out02.wipro.com (wipro-blr-out02.wipro.com [203.91.198.75]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 62F78B6F6F for ; Thu, 25 Aug 2011 17:57:46 +1000 (EST) MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01CC62FC.A720D232" Subject: Kernel boot up Date: Thu, 25 Aug 2011 13:27:36 +0530 Message-ID: <07ACDFB8ECA8EF47863A613BC01BBB22035E3A70@HYD-MKD-MBX02.wipro.com> In-Reply-To: <4E4174D1.5060408@freescale.com> From: To: Cc: linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , This is a multi-part message in MIME format. ------_=_NextPart_001_01CC62FC.A720D232 Content-Type: multipart/alternative; boundary="----_=_NextPart_002_01CC62FC.A720D232" ------_=_NextPart_002_01CC62FC.A720D232 Content-Type: text/plain; charset="us-ascii" content-transfer-encoding: quoted-printable Hi Scott, I am currently trying to bring up 2.6.39 kernel on a target based on MPC8247 Processor, using the attched .dts file . I get the below logs while the kernel is booting. I see that the unflattening of the device tree and the initial loading of the kernel and ramdisk file system is happening correctly. Can you point me where exactly I can look for this issue. I am attaching the .config and .dts file I am using. bootm 1000000 2000000 c00000 ## Current stack ends at 0x03e93cc8 * kernel: cmdline image address =3D 0x01000000 ## Booting kernel from Legacy Image at 01000000 ... Image Name: Linux-2.6.39 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 1766015 Bytes =3D 1.7 MiB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK kernel data at 0x01000040, len =3D 0x001af27f (1766015) * ramdisk: cmdline image address =3D 0x02000000 ## Loading init Ramdisk from Legacy Image at 02000000 ... Image Name: Image Type: PowerPC Linux RAMDisk Image (gzip compressed) Data Size: 2211111 Bytes =3D 2.1 MiB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK ramdisk start =3D 0x02000040, ramdisk end =3D 0x0221bd67 * fdt: cmdline image address =3D 0x00c00000 ## Checking for 'FDT'/'FDT Image' at 00c00000 * fdt: raw FDT blob ## Flattened Device Tree blob at 00c00000 Booting using the fdt blob at 0xc00000 of_flat_tree at 0x00c00000 size 0x00000f12 Uncompressing Kernel Image ... OK kernel loaded at 0x00000000, end =3D 0x00389d20 ## initrd_high =3D 0xffffffff, copy_to_ram =3D 1 Loading Ramdisk to 03c76000, end 03e91d27 ... OK ramdisk load start =3D 0x03c76000, ramdisk load end =3D 0x03e91d27 ## device tree at 00c00000 ... 00c00f11 (len=3D16146 [0x3F12]) Loading Device Tree to 007fc000, end 007fff11 ... OK Updating property 'clock-frequency' =3D 00 fe 70 b8 Updating property 'bus-frequency' =3D 03 f9 c2 e0 Updating property 'timebase-frequency' =3D 00 7f 38 5c Updating property 'clock-frequency' =3D 09 f0 67 30 ## Transferring control to Linux (at address 00000000) ... Booting using OF flat tree... Using Freescale MPC8272 ADS machine description Linux version 2.6.39 (2.6.39) (ktuser@ktuser) (gcc version 4.4.5 (Buildroot 2011 .02) ) #5 Wed Aug 24 15:02:07 IST 2011 Found initrd at 0xc3c76000:0xc3e91d27 No bcsr in device tree Zone PFN ranges: DMA 0x00000000 -> 0x00004000 Normal empty Movable zone start PFN for each node early_node_map[1] active PFN ranges 0: 0x00000000 -> 0x00004000 Built 1 zonelists in Zone order, mobility grouping on. Total pages: 16256 Kernel command line: mem=3D64M root=3D/dev/ram rw PID hash table entries: 256 (order: -2, 1024 bytes) Dentry cache hash table entries: 8192 (order: 3, 32768 bytes) Inode-cache hash table entries: 4096 (order: 2, 16384 bytes) Memory: 57972k/65536k available (3524k kernel code, 7564k reserved, 100k data, 1 137k bss, 168k init) Kernel virtual memory layout: * 0xfffdf000..0xfffff000 : fixmap * 0xfdfb6000..0xfe000000 : early ioremap * 0xc5000000..0xfdfb6000 : vmalloc & ioremap SLUB: Genslabs=3D15, HWalign=3D32, Order=3D0-3, MinObjects=3D0, CPUs=3D1, No= des=3D1 NR_IRQS:512 nr_irqs:512 16 No pci pic node in device tree. clocksource: timebase mult[1dfc2974] shift[22] registered console [ttyCPM0] enabled pid_max: default: 32768 minimum: 301 Mount-cache hash table entries: 512 NET: Registered protocol family 16 PCI: Probing PCI hardware bio: create slab at 0 vgaarb: loaded Switching to clocksource timebase brd: module loaded loop: module loaded of-flash ff800000.flash: do_map_probe() failed PPP generic driver version 2.4.2 PPP Deflate Compression module registered tun: Universal TUN/TAP device driver, 1.6 tun: (C) 1999-2004 Max Krasnyansky eth0: fs_enet: 00:00:00:00:00:00 eth1: fs_enet: 00:00:00:00:00:00 CPM2 Bitbanged MII: probed mousedev: PS/2 mouse device common for all mice TCP cubic registered NET: Registered protocol family 10 IPv6 over IPv4 tunneling driver NET: Registered protocol family 17 Freeing unused kernel memory: 168k init Populating /dev using udev: /sbin/udevd: '/lib/libc.so.6' library contains unsup ported TLS /sbin/udevd: '/lib/libc.so.6' library contains unsupported TLS /sbin/udevd: can't load library 'libc.so.6' FAIL /sbin/udevstart: '/lib/libc.so.6' library contains unsupported TLS /sbin/udevstart: '/lib/libc.so.6' library contains unsupported TLS /sbin/udevstart: can't load library 'libc.so.6' FAIL done Starting network... Regards, Smitha Please do not print this email unless it is absolutely necessary. =0A= =0A= The information contained in this electronic message and any attachments to= this message are intended for the exclusive use of the addressee(s) and may= contain proprietary, confidential or privileged information. If you are not= the intended recipient, you should not disseminate, distribute or copy this= e-mail. Please notify the sender immediately and destroy all copies of this= message and any attachments. =0A= =0A= WARNING: Computer viruses can be transmitted via email. The recipient should= check this email and any attachments for the presence of viruses. The compa= ny accepts no liability for any damage caused by any virus transmitted by th= is email. =0A= =0A= www.wipro.com ------_=_NextPart_002_01CC62FC.A720D232 Content-Type: text/html; charset="us-ascii" content-transfer-encoding: quoted-printable

Hi Scott,

I am currently trying to bring up 2.6.39 kernel on a target based on MPC8247
Processor, using the attched .dts file . I get the below lo= gs while the kernel is booting.
I see that the unflattening of the device tr= ee and the initial loading of the kernel and ramdisk file system is happening correctly. Can you point me where exactly I can look for this issue. I am attaching the .config and .dts file I am using.

bootm 1000000 2000000 c00000
#= # Current stack ends at 0x03e93cc8
* kernel: cmdline image address = =3D 0x01000000
## Booting kernel from Legacy Image at 01000000 ...
   Image Name:   Linux-2.6.39
   Ima= ge Type:   PowerPC Linux Kernel Image (gzip compressed)
&nbs= p; Data Size:    1766015 Bytes =3D 1.7 MiB
   Load= Address: 00000000
   Entry Point: 00000000
   Verifying Checksum ... OK
   kernel data at 0x01000040, len =3D 0x001af27f (1766015)
* ramdisk: cmdline image address =3D 0x02000000## Loading init Ramdisk from Legacy Image at 02000000 ...
   Image= Name:
   Image Type:   PowerPC Linux RAMDisk Image (g= zip compressed)
   Data Size:    2211111 Bytes =3D 2= .1 MiB
   Load Address: 00000000
   Entry Point: = ; 00000000
   Verifying Checksum ... OK
   ramdisk start =3D 0x02000040, ramdisk end =3D 0x0221bd67
* fdt: cmdline image address =3D 0x00c00000
##= Checking for 'FDT'/'FDT Image' at 00c00000
* fdt: raw FDT blob
#= # Flattened Device Tree blob at 00c00000
   Booting using the fdt blob at 0xc00000
   of_flat_tree at 0x00c00000 size 0x00000f12
   Uncompressing Kernel Image ... OK
  = kernel loaded at 0x00000000, end =3D 0x00389d20
## initrd_high =3D 0xffff= ffff, copy_to_ram =3D 1
   Loading Ramdisk to 03c76000, end 03e91d27= ... OK
   ramdisk load start =3D 0x03c76000, ramdisk load end =3D 0x03e91d27
## device tree at 00c00000 ... 00c00f11 (len=3D16146 [0x3F12])
   Loading Device Tree to 007fc000, end 007fff11 ...= OK
Updating property 'clock-frequency' =3D 00 fe 70 b8
Updating= property 'bus-frequency' =3D 03 f9 c2 e0
Updating property 'timebase-frequency' =3D 00 7f 38 5c
Updating property 'clock-frequ= ency' =3D 09 f0 67 30
## Transferring control to Li= nux (at address 00000000) ...
   Booting using OF flat tree...
Using= Freescale MPC8272 ADS machine description
Linux version 2.6.39 (2.6.39) (ktuser@ktuser) (gcc version 4.4.5 (Buildroot 2011
.02) ) #5 Wed Aug 24 15:02:07 IST 2011
Found initrd at 0xc3c76000:0xc3e91d27
No bcsr in dev= ice tree
Zone PFN ranges:
DMA     = 0x00000000 -> 0x00004000
Normal   empty
Movable zo= ne start PFN for each node
early_node_map[1] active PFN ranges
    0: 0x00000000 -> 0x00004000
Built 1 zonel= ists in Zone order, mobility grouping on. Total pages: 16256
Kernel comm= and line: mem=3D64M root=3D/dev/ram rw
PID hash table entries: 256 (order: -2= , 1024 bytes)
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 57972k/65536k available (3524k kernel code, 7564k reserved= , 100k data, 1
137k bss, 168k init)
Kernel virtual memory layout:
&nb= sp; * 0xfffdf000..0xfffff000 : fixmap
* 0xfdfb6000..0xfe000000&n= bsp; : early ioremap
* 0xc5000000..0xfdfb6000 : vmalloc & ioremap
SLUB: Genslabs=3D15, HWalign=3D32, Order=3D0-3, MinObjects=3D0, C= PUs=3D1, Nodes=3D1
NR_IRQS:512 nr_irqs:512 16
No pci pic node in device tree.
clocksource: timebase mult[1dfc2974] shift[22] registered
consol= e [ttyCPM0] enabled
pid_max: default: 32768 minimum: 301
Mount-cache has= h table entries: 512
NET: Registered protocol family 16
PCI: Probing PCI= hardware
bio: create slab <bio-0> at 0
vgaarb: loaded
Switchi= ng to clocksource timebase

brd: module loaded
loop: module loaded
of-flash ff800000.flash: do_map_probe() failed
PPP generic driv= er version 2.4.2
PPP Deflate Compression module registered
tun: Universal= TUN/TAP device driver, 1.6
tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
eth0: fs_enet: 00:00:00:00:00:00
eth1: fs_en= et: 00:00:00:00:00:00
CPM2 Bitbanged MII: probed
mousedev: PS/2 mouse devi= ce common for all mice
TCP cubic registered
NET: Registered protocol fami= ly 10
IPv6 over IPv4 tunneling driver
NET: Registered protocol family 17
Freeing unused kernel memory: 168k init
Populating /dev using udev:= /sbin/udevd: '/lib/libc.so.6' library contains unsup
ported TLS
/sbin/udevd: '/lib/libc.so.6' library contains unsupported TLS
/sbin/udevd: can't load library 'libc.so.6'
FAIL
/sbin/udevstar= t: '/lib/libc.so.6' library contains unsupported TLS
/sbin/udevstart: '/lib/libc.so.6' library contains unsupported TLS
/sbin/udevstart: can't= load library 'libc.so.6'
FAIL
done
Starting network...

Regards,

Smitha

Please do not print this email unl= ess it is absolutely necessary.

=0A= =0A= =0A=

=0A= =0A=

=0A=

=0A= www.wipro.com=0A=

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Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.chez-thomas.org (cl-316.chi-02.us.sixxs.net [IPv6:2001:4978:f:13b::2]) by ozlabs.org (Postfix) with ESMTP id 9AC11B6F69 for ; Thu, 25 Aug 2011 21:11:38 +1000 (EST) Message-ID: <4E562DE3.9020206@mlbassoc.com> Date: Thu, 25 Aug 2011 05:11:31 -0600 From: Gary Thomas MIME-Version: 1.0 To: smitha.vanga@wipro.com Subject: Re: Kernel boot up References: <07ACDFB8ECA8EF47863A613BC01BBB22035E3A70@HYD-MKD-MBX02.wipro.com> In-Reply-To: <07ACDFB8ECA8EF47863A613BC01BBB22035E3A70@HYD-MKD-MBX02.wipro.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Cc: linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 2011-08-25 01:57, smitha.vanga@wipro.com wrote: > Hi Scott, > > I am currently trying to bring up 2.6.39 kernel on a target based on MPC8247 > Processor, using the attched .dts file . I get the below logs while the kernel is booting. > I see that the unflattening of the device tree and the initial loading of the kernel and ramdisk file system is happening correctly. Can you point me where exactly I can look for > this issue. I am attaching the .config and .dts file I am using. There doesn't seem to be anything wrong with the kernel in this log. The failure is in the user code - in particular, udev is giving up with these errors: /sbin/udevstart: '/lib/libc.so.6' library contains unsupported TLS After that, all is lost as there will be no console, etc, for the rest of the system to use... You need to examine how you built the root file system and why you are getting these errors. This problem seems to be unique to uclibc > > > bootm 1000000 2000000 c00000 > ## Current stack ends at 0x03e93cc8 > * kernel: cmdline image address = 0x01000000 > ## Booting kernel from Legacy Image at 01000000 ... > Image Name: Linux-2.6.39 > Image Type: PowerPC Linux Kernel Image (gzip compressed) > Data Size: 1766015 Bytes = 1.7 MiB > Load Address: 00000000 > Entry Point: 00000000 > Verifying Checksum ... OK > kernel data at 0x01000040, len = 0x001af27f (1766015) > * ramdisk: cmdline image address = 0x02000000 > ## Loading init Ramdisk from Legacy Image at 02000000 ... > Image Name: > Image Type: PowerPC Linux RAMDisk Image (gzip compressed) > Data Size: 2211111 Bytes = 2.1 MiB > Load Address: 00000000 > Entry Point: 00000000 > Verifying Checksum ... OK > ramdisk start = 0x02000040, ramdisk end = 0x0221bd67 > * fdt: cmdline image address = 0x00c00000 > ## Checking for 'FDT'/'FDT Image' at 00c00000 > * fdt: raw FDT blob > ## Flattened Device Tree blob at 00c00000 > Booting using the fdt blob at 0xc00000 > of_flat_tree at 0x00c00000 size 0x00000f12 > Uncompressing Kernel Image ... OK > kernel loaded at 0x00000000, end = 0x00389d20 > ## initrd_high = 0xffffffff, copy_to_ram = 1 > Loading Ramdisk to 03c76000, end 03e91d27 ... OK > ramdisk load start = 0x03c76000, ramdisk load end = 0x03e91d27 > ## device tree at 00c00000 ... 00c00f11 (len=16146 [0x3F12]) > Loading Device Tree to 007fc000, end 007fff11 ... OK > Updating property 'clock-frequency' = 00 fe 70 b8 > Updating property 'bus-frequency' = 03 f9 c2 e0 > Updating property 'timebase-frequency' = 00 7f 38 5c > Updating property 'clock-frequency' = 09 f0 67 30 > ## Transferring control to Linux (at address 00000000) ... > Booting using OF flat tree... > Using Freescale MPC8272 ADS machine description > Linux version 2.6.39 (2.6.39) (ktuser@ktuser) (gcc version 4.4.5 (Buildroot 2011 > .02) ) #5 Wed Aug 24 15:02:07 IST 2011 > Found initrd at 0xc3c76000:0xc3e91d27 > No bcsr in device tree > Zone PFN ranges: > DMA 0x00000000 -> 0x00004000 > Normal empty > Movable zone start PFN for each node > early_node_map[1] active PFN ranges > 0: 0x00000000 -> 0x00004000 > Built 1 zonelists in Zone order, mobility grouping on. Total pages: 16256 > Kernel command line: mem=64M root=/dev/ram rw > PID hash table entries: 256 (order: -2, 1024 bytes) > Dentry cache hash table entries: 8192 (order: 3, 32768 bytes) > Inode-cache hash table entries: 4096 (order: 2, 16384 bytes) > Memory: 57972k/65536k available (3524k kernel code, 7564k reserved, 100k data, 1 > 137k bss, 168k init) > Kernel virtual memory layout: > * 0xfffdf000..0xfffff000 : fixmap > * 0xfdfb6000..0xfe000000 : early ioremap > * 0xc5000000..0xfdfb6000 : vmalloc & ioremap > SLUB: Genslabs=15, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 > NR_IRQS:512 nr_irqs:512 16 > No pci pic node in device tree. > clocksource: timebase mult[1dfc2974] shift[22] registered > console [ttyCPM0] enabled > pid_max: default: 32768 minimum: 301 > Mount-cache hash table entries: 512 > NET: Registered protocol family 16 > PCI: Probing PCI hardware > bio: create slab at 0 > vgaarb: loaded > Switching to clocksource timebase > > brd: module loaded > loop: module loaded > of-flash ff800000.flash: do_map_probe() failed > PPP generic driver version 2.4.2 > PPP Deflate Compression module registered > tun: Universal TUN/TAP device driver, 1.6 > tun: (C) 1999-2004 Max Krasnyansky > eth0: fs_enet: 00:00:00:00:00:00 > eth1: fs_enet: 00:00:00:00:00:00 > CPM2 Bitbanged MII: probed > mousedev: PS/2 mouse device common for all mice > TCP cubic registered > NET: Registered protocol family 10 > IPv6 over IPv4 tunneling driver > NET: Registered protocol family 17 > Freeing unused kernel memory: 168k init > Populating /dev using udev: /sbin/udevd: '/lib/libc.so.6' library contains unsup > ported TLS > /sbin/udevd: '/lib/libc.so.6' library contains unsupported TLS > /sbin/udevd: can't load library 'libc.so.6' > FAIL > /sbin/udevstart: '/lib/libc.so.6' library contains unsupported TLS > /sbin/udevstart: '/lib/libc.so.6' library contains unsupported TLS > /sbin/udevstart: can't load library 'libc.so.6' > FAIL > done > Starting network... > > Regards, > > Smitha > > *Please do not print this email unless it is absolutely necessary. * > > The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, > confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and > destroy all copies of this message and any attachments. > > WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for > any damage caused by any virus transmitted by this email. > > www.wipro.com > > > > _______________________________________________ > Linuxppc-dev mailing list > Linuxppc-dev@lists.ozlabs.org > https://lists.ozlabs.org/listinfo/linuxppc-dev -- ------------------------------------------------------------ Gary Thomas | Consulting for the MLB Associates | Embedded world ------------------------------------------------------------ From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from TX2EHSOBE007.bigfish.com (tx2ehsobe004.messaging.microsoft.com [65.55.88.14]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (Client CN "mail.global.frontbridge.com", Issuer "Microsoft Secure Server Authority" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id 4589AB6F91 for ; Fri, 26 Aug 2011 05:31:39 +1000 (EST) Received: from mail79-tx2 (localhost.localdomain [127.0.0.1]) by mail79-tx2-R.bigfish.com (Postfix) with ESMTP id E8F7F11052A for ; Thu, 25 Aug 2011 19:31:34 +0000 (UTC) Message-ID: <4E56A30F.4010509@freescale.com> Date: Thu, 25 Aug 2011 14:31:27 -0500 From: Scott Wood MIME-Version: 1.0 To: Subject: Re: Kernel boot up References: <07ACDFB8ECA8EF47863A613BC01BBB22035E3A70@HYD-MKD-MBX02.wipro.com> In-Reply-To: <07ACDFB8ECA8EF47863A613BC01BBB22035E3A70@HYD-MKD-MBX02.wipro.com> Content-Type: text/plain; charset="ISO-8859-1" Cc: linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 08/25/2011 02:57 AM, smitha.vanga@wipro.com wrote: > Hi Scott, > > I am currently trying to bring up 2.6.39 kernel on a target based on MPC8247 > Processor, using the attched .dts file . I get the below logs while the > kernel is booting. > I see that the unflattening of the device tree and the initial loading > of the kernel and ramdisk file system is happening correctly. Can you > point me where exactly I can look for this issue. I am attaching the > .config and .dts file I am using. Which error are you referring to? > of-flash ff800000.flash: do_map_probe() failed What kind of flash chip do you have? Does the node in the device tree accurately describe it (four interleaved 8-bit chips that only do JEDEC and not CFI)? > PPP generic driver version 2.4.2 > PPP Deflate Compression module registered > tun: Universal TUN/TAP device driver, 1.6 > tun: (C) 1999-2004 Max Krasnyansky > eth0: fs_enet: 00:00:00:00:00:00 > eth1: fs_enet: 00:00:00:00:00:00 These MAC addresses should have been set in the device tree. If you're using U-Boot, it should be doing the fixup. > Populating /dev using udev: /sbin/udevd: '/lib/libc.so.6' library > contains unsup > ported TLS > /sbin/udevd: '/lib/libc.so.6' library contains unsupported TLS > /sbin/udevd: can't load library 'libc.so.6' > FAIL > /sbin/udevstart: '/lib/libc.so.6' library contains unsupported TLS > /sbin/udevstart: '/lib/libc.so.6' library contains unsupported TLS > /sbin/udevstart: can't load library 'libc.so.6' > FAIL This is a problem with the root filesystem, not the kernel. -Scott From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from wipro-blr-out01.wipro.com (wipro-blr-out01.wipro.com [203.91.198.74]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id B8556B6F91 for ; Fri, 26 Aug 2011 16:02:16 +1000 (EST) MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01CC63B5.8546B44C" Subject: RE: Kernel boot up Date: Fri, 26 Aug 2011 11:30:56 +0530 Message-ID: <07ACDFB8ECA8EF47863A613BC01BBB22035E3D59@HYD-MKD-MBX02.wipro.com> In-Reply-To: <4E56A30F.4010509@freescale.com> From: To: Cc: linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , This is a multi-part message in MIME format. ------_=_NextPart_001_01CC63B5.8546B44C Content-Type: text/plain; charset="us-ascii" content-transfer-encoding: quoted-printable Thanks scott. There was an issue with the file system. Now my board is up with the linux boot prompt . But ping is not working. The local loopback ping works. My phy chip BCM5221 is connected on port A I am using FCC1 as the MAC. I see that the intrrupt handler is being registered properly. And even the fs_enet_start_xmit() gets called and it returns with return NETDEV_TX_OK. When I do a ifconfig -a I see the TX packets count increases for the loop back device but not for eth0. I am using the wireshark tool to see any packets on the witr. But don't see any ARP packets coming out on the wire. Can you please suggest . Below are the logs. Attache dis the .dts file. I have commented the bcsr register part in the .dts is this required. EPN412> bootm 1000000 2000000 c00000 ## Current stack ends at 0x03e93cc8 * kernel: cmdline image address =3D 0x01000000 ## Booting kernel from Legacy Image at 01000000 ... Image Name: Linux-2.6.39 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 1765760 Bytes =3D 1.7 MiB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK kernel data at 0x01000040, len =3D 0x001af180 (1765760) * ramdisk: cmdline image address =3D 0x02000000 ## Loading init Ramdisk from Legacy Image at 02000000 ... Image Name: uboot ext2 ramdisk rootfs Image Type: PowerPC Linux RAMDisk Image (gzip compressed) Data Size: 3972156 Bytes =3D 3.8 MiB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK ramdisk start =3D 0x02000040, ramdisk end =3D 0x023c9c7c * fdt: cmdline image address =3D 0x00c00000 ## Checking for 'FDT'/'FDT Image' at 00c00000 * fdt: raw FDT blob ## Flattened Device Tree blob at 00c00000 Booting using the fdt blob at 0xc00000 of_flat_tree at 0x00c00000 size 0x00000f12 Uncompressing Kernel Image ... OK kernel loaded at 0x00000000, end =3D 0x0038bd20 ## initrd_high =3D 0xffffffff, copy_to_ram =3D 1 Loading Ramdisk to 03ac9000, end 03e92c3c ... OK ramdisk load start =3D 0x03ac9000, ramdisk load end =3D 0x03e92c3c ## device tree at 00c00000 ... 00c00f11 (len=3D16146 [0x3F12]) Loading Device Tree to 007fc000, end 007fff11 ... OK Updating property 'clock-frequency' =3D 00 fe 70 b8 Updating property 'bus-frequency' =3D 03 f9 c2 e0 Updating property 'timebase-frequency' =3D 00 7f 38 5c Updating property 'clock-frequency' =3D 09 f0 67 30 ## Transferring control to Linux (at address 00000000) ... Booting using OF flat tree... Using Freescale MPC8272 ADS machine description Linux version 2.6.39 (2.6.39) (ktuser@ktuser) (gcc version 4.4.5 (Buildroot 2011.02) ) #7 Thu Aug 25 20:59:40 IST 2011 Found initrd at 0xc3ac9000:0xc3e92c3c No bcsr in device tree Zone PFN ranges: DMA 0x00000000 -> 0x00004000 Normal empty Movable zone start PFN for each node early_node_map[1] active PFN ranges 0: 0x00000000 -> 0x00004000 Built 1 zonelists in Zone order, mobility grouping on. Total pages: 16256 Kernel command line: mem=3D64M root=3D/dev/ram rw PID hash table entries: 256 (order: -2, 1024 bytes) Dentry cache hash table entries: 8192 (order: 3, 32768 bytes) Inode-cache hash table entries: 4096 (order: 2, 16384 bytes) Memory: 56244k/65536k available (3528k kernel code, 9292k reserved, 104k data, 1137k bss, 168k init) Kernel virtual memory layout: * 0xfffdf000..0xfffff000 : fixmap * 0xfdfb6000..0xfe000000 : early ioremap * 0xc5000000..0xfdfb6000 : vmalloc & ioremap SLUB: Genslabs=3D15, HWalign=3D32, Order=3D0-3, MinObjects=3D0, CPUs=3D1, No= des=3D1 NR_IRQS:512 nr_irqs:512 16 No pci pic node in device tree. clocksource: timebase mult[1dfc2974] shift[22] registered console [ttyCPM0] enabled pid_max: default: 32768 minimum: 301 Mount-cache hash table entries: 512 NET: Registered protocol family 16 PCI: Probing PCI hardware bio: create slab at 0 vgaarb: loaded Switching to clocksource timebase Switched to NOHz mode on CPU #0 NET: Registered protocol family 2 IP route cache hash table entries: 1024 (order: 0, 4096 bytes) TCP established hash table entries: 2048 (order: 2, 16384 bytes) TCP bind hash table entries: 2048 (order: 1, 8192 bytes) TCP: Hash tables configured (established 2048 bind 2048) TCP reno registered UDP hash table entries: 256 (order: 0, 4096 bytes) UDP-Lite hash table entries: 256 (order: 0, 4096 bytes) NET: Registered protocol family 1 RPC: Registered udp transport module. RPC: Registered tcp transport module. RPC: Registered tcp NFSv4.1 backchannel transport module. Trying to unpack rootfs image as initramfs... rootfs image is not initramfs (no cpio magic); looks like an initrd Freeing initrd memory: 3879k freed msgmni has been set to 119 Block layer SCSI generic (bsg) driver version 0.4 loaded (major 254) io scheduler noop registered io scheduler deadline registered io scheduler cfq registered (default) f0011a00.serial: ttyCPM0 at MMIO 0xc5014a00 (irq =3D 40) is a CPM UART f0011a60.serial: ttyCPM1 at MMIO 0xc5018a60 (irq =3D 43) is a CPM UART brd: module loaded loop: module loaded of-flash ff800000.flash: do_map_probe() failed =3D=3D=3D=3D=3Draj gem init PPP generic driver version 2.4.2 PPP Deflate Compression module registered tun: Universal TUN/TAP device driver, 1.6 tun: (C) 1999-2004 Max Krasnyansky eth0: fs_enet: 00:00:00:00:00:00 eth1: fs_enet: 00:00:00:00:00:00 CPM2 Bitbanged MII: probed mousedev: PS/2 mouse device common for all mice TCP cubic registered NET: Registered protocol family 10 IPv6 over IPv4 tunneling driver NET: Registered protocol family 17 RAMDISK: gzip image found at block 0 VFS: Mounted root (ext2 filesystem) on device 1:0. Freeing unused kernel memory: 168k init Mounting /proc and /sys Setting the hostname to mpc837xemds Mounting filesystems mount: mounting usbfs on /proc/bus/usb failed: No such file or directory Starting syslogd and klogd Running sysctl Setting up networking on loopback device: Setting up networking on eth0: SIOCSIFFLAGS: Cannot assign requested address Adding static route for default gateway to 192.168.1.1: SIOCADDRT: Network is unreachable Setting nameserver to 192.168.1.1 in /etc/resolv.conf: Setting up networking on eth1: SIOCSIFFLAGS: Cannot assign requested address Adding static route for default gateway to 192.168.1.1: SIOCADDRT: Network is unreachable Setting nameserver to 192.168.1.1 in /etc/resolv.conf: Starting inetd: Please set the system time using date /sbin/hwclock -w Welcome to Freescale Semiconductor Embedded Linux Environment !!!!! WARNING !!!!!!! The default password for the root account is: root please change this password using the 'passwd' command and then edit this message (/etc/issue) to remove this message mpc837xemds login: root Password: [root@mpc837xemds /root]# [root@mpc837xemds /root]# [root@mpc837xemds /root]# [root@mpc837xemds /root]# cat /proc/interrupts CPU0 40: 55 CPM2 SIU Level cpm_uart LOC: 3507 Local timer interrupts SPU: 0 Spurious interrupts CNT: 0 Performance monitoring interrupts MCE: 0 Machine check exceptions [root@mpc837xemds /root]# cat /proc/interrupts CPU0 40: 67 CPM2 SIU Level cpm_uart LOC: 3536 Local timer interrupts SPU: 0 Spurious interrupts CNT: 0 Performance monitoring interrupts MCE: 0 Machine check exceptions [root@mpc837xemds /root]# ping localhost PING localhost (127.0.0.1): 56 data bytes 64 bytes from 127.0.0.1: seq=3D0 ttl=3D64 time=3D1.803 ms 64 bytes from 127.0.0.1: seq=3D1 ttl=3D64 time=3D1.784 ms 64 bytes from 127.0.0.1: seq=3D2 ttl=3D64 time=3D1.190 ms 64 bytes from 127.0.0.1: seq=3D3 ttl=3D64 time=3D1.187 ms --- localhost ping statistics --- 4 packets transmitted, 4 packets received, 0% packet loss round-trip min/avg/max =3D 1.187/1.491/1.803 ms [root@mpc837xemds /root]# cat /proc/interrupts CPU0 40: 106 CPM2 SIU Level cpm_uart LOC: 3636 Local timer interrupts SPU: 0 Spurious interrupts CNT: 0 Performance monitoring interrupts MCE: 0 Machine check exceptions [root@mpc837xemds /root]# ping l [root@mpc837xemds /root]# ifconfig lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:8 errors:0 dropped:0 overruns:0 frame:0 TX packets:8 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:672 (672.0 b) TX bytes:672 (672.0 b) [root@mpc837xemds /root]# ifconfig eth0 up SIOCSIFFLAGS: Cannot assign requested address [root@mpc837xemds /root]# ifconfig -a eth0 Link encap:Ethernet HWaddr 00:00:00:00:00:00 inet addr:192.168.1.100 Bcast:192.168.1.255 Mask:255.255.255.0 BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) eth1 Link encap:Ethernet HWaddr 00:00:00:00:00:00 inet addr:192.168.1.101 Bcast:192.168.1.255 Mask:255.255.255.0 BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:8 errors:0 dropped:0 overruns:0 frame:0 TX packets:8 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:672 (672.0 b) TX bytes:672 (672.0 b) sit0 Link encap:UNSPEC HWaddr 00-00-00-00-04-22-10-02-00-00-00-00-00-00-00-00 NOARP MTU:1480 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) [root@mpc837xemds /root]# ifconfig eth0 hw ether 00:00:00:00:00:01 [root@mpc837xemds /root]# ifconfig eth0 up ADDRCONF(NETDEV_UP): eth0: link is not ready [root@mpc837xemds /root]# ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [root@mpc837xemds /root]# [root@mpc837xemds /root]# [root@mpc837xemds /root]# [root@mpc837xemds /root]# ifconfig eth0 Link encap:Ethernet HWaddr 00:00:00:00:00:01 inet addr:192.168.1.100 Bcast:192.168.1.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:5 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 b) TX bytes:398 (398.0 b) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:8 errors:0 dropped:0 overruns:0 frame:0 TX packets:8 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:672 (672.0 b) TX bytes:672 (672.0 b) [root@mpc837xemds /root]# ping 192.168.1.1 PING 192.168.1.1 (192.168.1.1): 56 data bytes --- 192.168.1.1 ping statistics --- 3 packets transmitted, 0 packets received, 100% packet loss [root@mpc837xemds /root]# cat /proc/interrupts CPU0 32: 9 CPM2 SIU Level fs_enet-mac 40: 384 CPM2 SIU Level cpm_uart LOC: 4369 Local timer interrupts SPU: 0 Spurious interrupts CNT: 0 Performance monitoring interrupts MCE: 0 Machine check exceptions [root@mpc837xemds /root]# Regards, Smitha Please do not print this email unless it is absolutely necessary. =0A= =0A= The information contained in this electronic message and any attachments to= this message are intended for the exclusive use of the addressee(s) and may= contain proprietary, confidential or privileged information. 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20:08:37 +0000 (UTC) Message-ID: <4E57FD3D.6090809@freescale.com> Date: Fri, 26 Aug 2011 15:08:29 -0500 From: Scott Wood MIME-Version: 1.0 To: Subject: Re: Kernel boot up References: <07ACDFB8ECA8EF47863A613BC01BBB22035E3D59@HYD-MKD-MBX02.wipro.com> In-Reply-To: <07ACDFB8ECA8EF47863A613BC01BBB22035E3D59@HYD-MKD-MBX02.wipro.com> Content-Type: text/plain; charset="ISO-8859-1" Cc: linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 08/26/2011 01:00 AM, smitha.vanga@wipro.com wrote: > > Thanks scott. > > There was an issue with the file system. Now my board is up with the > linux boot prompt . > But ping is not working. You still haven't set your MAC address. U-Boot should be fixing this up in the device tree. > The local loopback ping works. My phy chip > BCM5221 is connected on port A Your device tree describes a connection on port C. You need to update the mdio node's reg to point to port A's registers (0x10d00), and fsl,mdio-pin and fsl,mdc-pin need to be set to the particular pins your board uses. -Scott From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from wipro-blr-out02.wipro.com (wipro-blr-out02.wipro.com [203.91.198.75]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id CF96EB6F82 for ; Fri, 23 Sep 2011 01:25:48 +1000 (EST) From: To: Subject: I2c driver crash Date: Thu, 22 Sep 2011 15:25:26 +0000 Message-ID: <40631E9A2581F14BA60888C87A76A1FE012ED4@HYD-MKD-MBX4.wipro.com> In-Reply-To: <4E57FD3D.6090809@freescale.com> Content-Type: multipart/alternative; boundary="_000_40631E9A2581F14BA60888C87A76A1FE012ED4HYDMKDMBX4wiproco_" MIME-Version: 1.0 Cc: linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , --_000_40631E9A2581F14BA60888C87A76A1FE012ED4HYDMKDMBX4wiproco_ Content-Type: text/plain; charset="us-ascii" content-transfer-encoding: quoted-printable Hi Scott, When I call if i2c_master_send(&ds75->i2c_client,buffer,2) it crashes. In m= odule initialization I don't see any errors. Below are kernel messages. Coul= d you please let me know what may be the reason for this crash. -----------Logs--------- Loading Temperature Sensor Interface module (temp_if.ko) ds75_init DS75_DRIVER : Open DS75_DRIVER : Device Open Successful! DS75_DRIVER : ioctl TEMP_READ cmd 1 ds75_temp_read calling i2c_master_send In i2c_master_send enter------- Unable to handle kernel paging request for data at address 0x00000010 Faulting instruction address: 0xc01b06a4 Oops: Kernel access of bad area, sig: 11 [#1] Modules linked in: temp_if gpio_if NIP: C01B06A4 LR: C01B06A0 CTR: C019BC90 REGS: c309bdc0 TRAP: 0300 Not tainted (2.6.21.7-hrt1-cfs-v22-grsec-WR2.0b= l_cgl) MSR: 00009032 CR: 44004822 XER: 00000000 DAR: 00000010, DSISR: 20000000 TASK =3D c306f810[145] 'epn412' THREAD: c309a000 GPR00: 00007D00 C309BE70 C306F810 C02A0000 00000001 00000001 00000000 FDFBD0= A0 GPR08: 003DE8A0 A827A936 00003F78 C02EAE88 00000001 1011C7C0 03EFD000 FFFFFF= FF GPR16: 00000001 00000000 007FFC00 37942FA8 1012EAC0 1001E530 37942FB4 000000= 03 GPR24: 37942FB4 00000000 003D0F00 C309BEA8 FFFFFFF7 00000008 C309BEA8 000000= 02 Call Trace: [C309BE70] [C01B0698] (unreliable) [C309BEA0] [C50B71DC] [C309BED0] [C007A0D0] [C309BEE0] [C007A158] [C309BF10] [C007A4EC] [C309BF40] [C000E780] --- Exception: c01Instruction dump: 7c0802a6 bf61001c 7c7d1b78 3c60c02a 386313b4 7cbf2b78 90010034 7c9b2378 4be6bc79 386007d0 4be5ac6d 3c60c02a <839d0008> 386313d8 4be6bc61 a01d0004 Below is the driver code. ------------------------- #include "temp_if.h" #include #include //#include #define I2C_DEBUG #ifdef I2C_DEBUG #define I2C_DBG1(x) printk(KERN_WARNING x) #define I2C_DBG2(x,y) printk(KERN_WARNING x,y) #define I2C_DBG3(x,y,z) printk(KERN_WARNING x,y,z) #define I2C_DBG4(w,x,y,z) printk(KERN_WARNING w,x,y,z) #else #define I2C_DBG1(x) #define I2C_DBG2(x,y) #define I2C_DBG3(x,y,z) #define I2C_DBG4(w,x,y,z) #endif /* Function Prototype */ static int ds75_open(struct inode *inode, struct file *filp); static int ds75_iotcl(struct inode *inode, struct file *flip, unsigned int c= md, unsigned long arg); static int ds75_release(struct inode *inode, struct file *flip); int ds75_attach_client(struct ds75_data * ds75, struct i2c_adapter *adapter)= ; int ds75_attach_adapter(struct i2c_adapter *adapter); int ds75_detach_client(struct i2c_client *client); /* Structure */ static struct file_operations tmpsensor_fops =3D { ioctl: ds75_iotcl, open: ds75_open, release: ds75_release, }; static struct i2c_driver ds75_driver =3D { .driver =3D { .name =3D "DS75", }, .attach_adapter =3D ds75_attach_adapter, .detach_client =3D ds75_detach_client, }; /* Global Variable */ static int s_nI2CMajor =3D 0; static int s_bI2CDevOpen =3D 0; static int s_nUseCnt =3D 0; struct ds75_data *ds75; static int ds75_open(struct inode *inode, struct file *flip) { I2C_DBG1( "DS75_DRIVER : Open\n"); if(s_bI2CDevOpen =3D=3D 0) { I2C_DBG1("DS75_DRIVER : Device Open Successful!\n"); s_bI2CDevOpen =3D 1; s_nUseCnt++; } else { I2C_DBG1("DS75_DRIVER : Device Already Opened Successfully!\n"); s_bI2CDevOpen =3D 1; s_nUseCnt++; } return 0; } static int ds75_release(struct inode *inode, struct file *flip) { I2C_DBG1 (KERN_INFO "Entering ds75_release\n" ); if(s_bI2CDevOpen) { if( s_nUseCnt <=3D 0 ) { I2C_DBG1("DS75_DRIVER : i2c driver can't be released!\n"); return -EIO; } else { I2C_DBG1("DS75_DRIVER : Release Successful!\n"); s_nUseCnt--; if( s_nUseCnt =3D=3D 0 ) { s_bI2CDevOpen =3D 0; I2C_DBG1("DS75_DRIVER : I2C Driver is Closed!\n"); } } return 0; } else { I2C_DBG1("DS75_DRIVER : Release Fail! (Device is Not Open)\n"); return -EIO; } } /* This function will read the Temperature from the device and copies to user= space */ static int ds75_temp_read(struct ds75_msg_t *pData) { //unsigned char buffer[4]; signed char buffer[4]; int ret; buffer[0]=3D0; /* Writing 0 in to Pointer register. --> Temprature rea= d register */ if ((ret =3D i2c_master_send(&ds75->i2c_client,buffer,2)) !=3D2) { I2C_DBG2("DS75_DRIVER : Error writing to I2C ret =3D %d\n",ret); return -1; } /* reading from the temperature read register */ if (i2c_master_recv(&ds75->i2c_client,buffer,2)!=3D 2) { I2C_DBG1("DS75_DRIVER : Error reading from I2C\n"); return -1; } //I2C_DBG3("DS75_DRIVER: data[0] =3D %d, data[1] =3D %d \n",buffer[0],b= uffer[1]); //I2C_DBG3("DS75_DRIVER: data[0] =3D %d, data[1] =3D %d \n",buffer[0= ],buffer[1]); /* Copy User Memory Area */ if(copy_to_user(pData->ReadData,buffer, 2 ) !=3D 0) { I2C_DBG1("DS75_DRIVER : error in copying to user space"); return -1; } return 0; /* Success */ } static int ds75_iotcl(struct inode *inode, struct file *flip, unsigned int c= md, unsigned long arg) { int nRetVal =3D 0; if( ((struct ds75_msg_t *)arg) =3D=3D NULL ){ I2C_DBG1("DS75_DRIVER : ioctl Message Buff must not be NULL= \n"); return -EFAULT; } switch(cmd){ case TEMP_READ: I2C_DBG2("DS75_DRIVER : ioctl TEMP_READ cmd %d\n",c= md); nRetVal =3D ds75_temp_read((struct ds75_msg_t *) arg= ); break; default: /* Error! */ I2C_DBG1("DS75_DRIVER : Command not implemented\n"= ); nRetVal =3D -EIO; break; } return nRetVal; } /* * i2c_attach_client - tries to detect and initialize slics */ int ds75_attach_client(struct ds75_data * ds75, struct i2c_adapter *adapter) { struct i2c_client * client; /* register i2c client */ client =3D &ds75->i2c_client; client->adapter =3D adapter; client->driver =3D &ds75_driver; // client->flags =3D I2C_CLIENT_ALLOW_USE; client->addr =3D DS75_ADDR; strlcpy(client->name, "DS75", I2C_NAME_SIZE); i2c_set_clientdata(client, ds75); if (i2c_attach_client(client)) return -1; printk (KERN_INFO DS75_DRIVER_NAME ": I2C client attached\n"); return 0; } /* * i2c_attach_adapter - initializes the maxim driver */ int ds75_attach_adapter(struct i2c_adapter *adapter) { /* allocate maxim_data structure */ ds75 =3D kmalloc(sizeof (struct ds75_data), GFP_KERNEL); if (ds75 =3D=3D NULL) { printk (KERN_ERR "Unable to allocate memory for ds75 temp sensor= driver\n"); goto err0; } memset(ds75, 0, sizeof(struct ds75_data)); /* Attach Spi Client */ if (ds75_attach_client(ds75, adapter) !=3D 0) { printk (KERN_ERR "No ds75 device detected\n"); goto err1; } return 0; err1: kfree(ds75); err0: return -1; } /* * i2c_detach_client - cleans up the maxim driver */ int ds75_detach_client(struct i2c_client *client) { struct ds75_data *ds75 =3D i2c_get_clientdata(client); if (ds75->owned_irq) { free_irq(ds75->irq, ds75); ds75->owned_irq =3D 0; } i2c_detach_client(&ds75->i2c_client); kfree (ds75); // Free the kernel memory */ return 0; } /* * Temperature sensor DS75 init - * */ int __init ds75_init(void) { int rc; rc =3D i2c_add_driver(&ds75_driver); if (rc) { printk (KERN_ERR DS75_DRIVER_NAME ": unable to add driver\n"= ); return rc; } rc =3D register_chrdev (DS75_DEVICE_MAJOR_NUM, DS75_DRIVER_NAME, &tm= psensor_fops); if (rc) { printk (KERN_ERR DS75_DRIVER_NAME ": unable to register char= device\n"); return rc; } return 0; } /** * maxim _exit - * * */ void __exit ds75_exit(void) { unregister_chrdev (DS75_DEVICE_MAJOR_NUM, DS75_DRIVER_NAME); i2c_del_driver(&ds75_driver); } MODULE_AUTHOR("xxxx"); MODULE_DESCRIPTION("DS75 I2C driver"); MODULE_LICENSE("GPL"); module_init(ds75_init); module_exit(ds75_exit); Regards, Smitha Please do not print this email unless it is absolutely necessary. =0A= =0A= The information contained in this electronic message and any attachments to= this message are intended for the exclusive use of the addressee(s) and may= contain proprietary, confidential or privileged information. If you are not= the intended recipient, you should not disseminate, distribute or copy this= e-mail. Please notify the sender immediately and destroy all copies of this= message and any attachments. =0A= =0A= WARNING: Computer viruses can be transmitted via email. The recipient should= check this email and any attachments for the presence of viruses. The compa= ny accepts no liability for any damage caused by any virus transmitted by th= is email. =0A= =0A= www.wipro.com --_000_40631E9A2581F14BA60888C87A76A1FE012ED4HYDMKDMBX4wiproco_ Content-Type: text/html; charset="us-ascii" content-transfer-encoding: quoted-printable

Hi Scott,

When I call if i2c_master_send(&ds75->i2c_client,buffer,2) it c= rashes. In module initialization I don't see any errors. Below are kernel me= ssages. Could you please let me know what may be the reason for this crash.<= br>
-----------Logs---------
Loading Temperature Sensor Interface module (temp_if.ko)
ds75_init
DS75_DRIVER : Open
DS75_DRIVER : Device Open Successful!
DS75_DRIVER : ioctl TEMP_READ cmd 1
ds75_temp_read calling i2c_master_send
In i2c_master_send enter-------
Unable to handle kernel paging request for data at address 0x00000010=
Faulting instruction address: 0xc01b06a4
Oops: Kernel access of bad area, sig: 11 [#1]

Modules linked in: temp_if gpio_if
NIP: C01B06A4 LR: C01B06A0 CTR: C019BC90
REGS: c309bdc0 TRAP: 0300   Not tainted (2.6.21.7-hrt1-cfs-v= 22-grsec-WR2.0bl_cgl)
MSR: 00009032 <EE,ME,IR,DR> CR: 44004822 XER: 00000000
DAR: 00000010, DSISR: 20000000
TASK =3D c306f810[145] 'epn412' THREAD: c309a000
GPR00: 00007D00 C309BE70 C306F810 C02A0000 00000001 00000001 00000000 FDFBD0= A0
GPR08: 003DE8A0 A827A936 00003F78 C02EAE88 00000001 1011C7C0 03EFD000 FFFFFF= FF
GPR16: 00000001 00000000 007FFC00 37942FA8 1012EAC0 1001E530 37942FB4 000000= 03
GPR24: 37942FB4 00000000 003D0F00 C309BEA8 FFFFFFF7 00000008 C309BEA8 000000= 02
Call Trace:
[C309BE70] [C01B0698] (unreliable)
[C309BEA0] [C50B71DC]
[C309BED0] [C007A0D0]
[C309BEE0] [C007A158]
[C309BF10] [C007A4EC]
[C309BF40] [C000E780]
--- Exception: c01Instruction dump:
7c0802a6 bf61001c 7c7d1b78 3c60c02a 386313b4 7cbf2b78 90010034 7c9b2378
4be6bc79 386007d0 4be5ac6d 3c60c02a <839d0008> 386313d8 4be6bc61 a01d0= 004

Below is the driver code.
-------------------------

#include "temp_if.h"
#include <asm-powerpc/uaccess.h>
#include <linux/i2c.h>
//#include <asm/arch/platform.h>

#define I2C_DEBUG

#ifdef      I2C_DEBUG
#define     I2C_DBG1(x)     &nb= sp;           printk(KERN_= WARNING x)
#define     I2C_DBG2(x,y)     &= nbsp;         printk(KERN_WARNING x,= y)
#define     I2C_DBG3(x,y,z)     = ;        printk(KERN_WARNING x,y,z)
#define     I2C_DBG4(w,x,y,z)    &nb= sp;     printk(KERN_WARNING w,x,y,z)
#else
#define I2C_DBG1(x)         &nb= sp;
#define I2C_DBG2(x,y)
#define I2C_DBG3(x,y,z)
#define I2C_DBG4(w,x,y,z)
#endif

/* Function Prototype */
static int ds75_open(struct inode *inode, struct file *filp);
static int ds75_iotcl(struct inode *inode, struct file *flip, unsigned int c= md, unsigned long arg);
static int ds75_release(struct inode *inode, struct file *flip);
int ds75_attach_client(struct ds75_data * ds75, struct i2c_adapter *adapter)= ;

int ds75_attach_adapter(struct i2c_adapter *adapter);
int ds75_detach_client(struct i2c_client *client);

/* Structure */
static struct file_operations tmpsensor_fops =3D
{
        ioctl:    &n= bsp;    ds75_iotcl,
        open:    &n= bsp;    ds75_open,
        release:    &= nbsp;   ds75_release,

};

static struct i2c_driver ds75_driver =3D {
        .driver =3D {
            &nbs= p;   .name   =3D "DS75",
        },
        .attach_adapter =3D ds75_attach_a= dapter,
        .detach_client =3D ds75_det= ach_client,
};

/* Global Variable */
static int s_nI2CMajor =3D 0;
static int s_bI2CDevOpen =3D 0;
static int s_nUseCnt =3D 0;
struct ds75_data *ds75;

static int ds75_open(struct inode *inode, struct file *flip)
{
I2C_DBG1( "DS75_DRIVER : Open\n");
if(s_bI2CDevOpen =3D=3D 0)
    {
      I2C_DBG1("DS75_DRIVER : Device Open Succ= essful!\n");
      s_bI2CDevOpen =3D 1;
      s_nUseCnt++;

    }
else
    {
      I2C_DBG1("DS75_DRIVER : Device Already O= pened Successfully!\n");
      s_bI2CDevOpen =3D 1;
      s_nUseCnt++;
    }
return 0;
}

static int ds75_release(struct inode *inode, struct file *flip)
{
I2C_DBG1 (KERN_INFO "Entering ds75_release\n" );
if(s_bI2CDevOpen)
    {
      if( s_nUseCnt <=3D 0 )
        {
        I2C_DBG1("DS75_DRIVER= : i2c driver can't be released!\n");
        return -EIO;
        }
      else
        {
        I2C_DBG1("DS75_DRIVER= : Release Successful!\n");
        s_nUseCnt--;
        if( s_nUseCnt =3D=3D 0 )             {
              s_= bI2CDevOpen =3D 0;
              I2= C_DBG1("DS75_DRIVER : I2C Driver is Closed!\n");
             &nb= sp; }
        }
      return 0;
    }
else
    {
      I2C_DBG1("DS75_DRIVER : Release Fa= il! (Device is Not Open)\n");
      return -EIO;
    }
}

/*
This function will read the Temperature from the device and copies to= user space
*/
static int ds75_temp_read(struct ds75_msg_t *pData)
{
     //unsigned char buffer[4];
     signed char buffer[4];
     int ret;
     buffer[0]=3D0; /* Writing 0 in to Pointer reg= ister. --> Temprature read register */
     if ((ret =3D i2c_master_send(&ds75->i2c_clie= nt,buffer,2)) !=3D2)
     {
         I2C_DBG2("DS75_DRIVER&= nbsp; : Error writing to I2C ret =3D %d\n",ret);
             &nb= sp;      return -1;
     }

     /* reading from the temperature read register */      if (i2c_master_recv(&ds75->i2c_client,buffer= ,2)!=3D 2)
     {
         I2C_DBG1("DS75_DRIVER&= nbsp; : Error reading from I2C\n");
             &nb= sp;      return -1;
     }

     //I2C_DBG3("DS75_DRIVER: data[0] =3D %d, data[= 1] =3D %d \n",buffer[0],buffer[1]);
        //I2C_DBG3("DS75_DRIVER: dat= a[0] =3D %d, data[1] =3D %d \n",buffer[0],buffer[1]);

     /* Copy User Memory Area */
           if(copy_to_user(pDat= a->ReadData,buffer, 2 ) !=3D 0)
           {
              I2= C_DBG1("DS75_DRIVER : error in copying to user space");
              re= turn -1;
           }

     return 0; /* Success */

}

static int ds75_iotcl(struct inode *inode, struct file *flip, unsigned int c= md, unsigned long arg)
{
        int nRetVal =3D 0;

        if( ((struct ds75_msg_t *)arg) = =3D=3D NULL ){
             &nb= sp; I2C_DBG1("DS75_DRIVER : ioctl Message Buff must not be= NULL\n");
             &nb= sp; return -EFAULT;
        }

        switch(cmd){
             &nb= sp; case TEMP_READ:
             &nb= sp;         I2C_DBG2("DS75_DRI= VER : ioctl TEMP_READ cmd %d\n",cmd);
             &nb= sp;         nRetVal =3D ds75_temp_r= ead((struct ds75_msg_t *) arg);
             &nb= sp;         break;

             &nb= sp; default:
             &nb= sp;         /* Error! */
             &nb= sp;         I2C_DBG1("DS75_DRI= VER : Command not implemented\n");
             &nb= sp;         nRetVal =3D -EIO;
             &nb= sp;         break;
        }
        return nRetVal;
}

/*
* i2c_attach_client - tries to detect and initialize slics
*/
int ds75_attach_client(struct ds75_data * ds75, struct i2c_adapter *adapter)=
{
        struct i2c_client * client;

        /* register i2c client */
        client =3D &ds75->i2c_clie= nt;
        client->adapter =3D adapter;         client->driver =3D &ds75_d= river;
//      client->flags =3D I2C_CLIENT_ALLOW_USE;<= br> client->addr =3D DS75_ADDR;      &nb= sp;
strlcpy(client->name, "DS75", I2C_NAME_SIZE);
        i2c_set_clientdata(client, ds75);=

        if (i2c_attach_client(client))      return -1;

        printk (KERN_INFO DS75_DRIVER_NAM= E ": I2C client attached\n");
        return 0;
}

/*
* i2c_attach_adapter - initializes the maxim driver
*/
int ds75_attach_adapter(struct i2c_adapter *adapter)
{
        /* allocate maxim_data structure= */
        ds75 =3D kmalloc(sizeof (struct d= s75_data), GFP_KERNEL);
        if (ds75 =3D=3D NULL)
        {
           printk (KERN_ERR &qu= ot;Unable to allocate memory for ds75 temp sensor driver\n");
           goto err0;
        }
        memset(ds75, 0, sizeof(struct ds7= 5_data));

      /* Attach Spi Client */
        if (ds75_attach_client(ds75, adap= ter) !=3D 0)
        {
           printk (KERN_ERR &qu= ot;No ds75 device detected\n");
           goto err1;
        }

        return 0;

err1:
        kfree(ds75);
err0:
        return -1;
}

/*
* i2c_detach_client - cleans up the maxim driver
*/
int ds75_detach_client(struct i2c_client *client)
{
        struct ds75_data *ds75 =3D i2c_ge= t_clientdata(client);

        if (ds75->owned_irq)
        {
             &nb= sp; free_irq(ds75->irq, ds75);
             &nb= sp; ds75->owned_irq =3D 0;
             &nb= sp;
        }

        i2c_detach_client(&ds75->i= 2c_client);

        kfree (ds75);   &n= bsp; // Free the kernel memory */

        return 0;
}

/*
* Temperature sensor DS75 init -
*
*/
int __init ds75_init(void)
{
        int rc;
        rc =3D i2c_add_driver(&ds75_d= river);
        if (rc)
        {
             &nb= sp; printk (KERN_ERR DS75_DRIVER_NAME ": unable to add driver\n&q= uot;);
             &nb= sp; return rc;
        }

        rc =3D register_chrdev (DS75_DEVI= CE_MAJOR_NUM, DS75_DRIVER_NAME, &tmpsensor_fops);
        if (rc)
        {
             &nb= sp; printk (KERN_ERR DS75_DRIVER_NAME ": unable to register char= device\n");
             &nb= sp; return rc;
        }

        return 0;
}

/**
* maxim _exit -
*
*
*/
void __exit ds75_exit(void)
{
        unregister_chrdev (DS75_DEVICE_MA= JOR_NUM, DS75_DRIVER_NAME);

        i2c_del_driver(&ds75_driver);=
}

MODULE_AUTHOR("xxxx");
MODULE_DESCRIPTION("DS75 I2C driver");
MODULE_LICENSE("GPL");

module_init(ds75_init);
module_exit(ds75_exit);

Regards,
Smitha

Please do not print this email unl= ess it is absolutely necessary.

=0A= =0A= =0A=

=0A= =0A=

=0A=

=0A= www.wipro.com=0A=

--_000_40631E9A2581F14BA60888C87A76A1FE012ED4HYDMKDMBX4wiproco_-- From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 4CD76B6F8F for ; Fri, 23 Sep 2011 11:28:52 +1000 (EST) Subject: Re: I2c driver crash From: Benjamin Herrenschmidt To: smitha.vanga@wipro.com In-Reply-To: <40631E9A2581F14BA60888C87A76A1FE012ED4@HYD-MKD-MBX4.wipro.com> References: <40631E9A2581F14BA60888C87A76A1FE012ED4@HYD-MKD-MBX4.wipro.com> Content-Type: text/plain; charset="UTF-8" Date: Fri, 23 Sep 2011 11:28:39 +1000 Message-ID: <1316741319.2629.0.camel@pasglop> Mime-Version: 1.0 Cc: scottwood@freescale.com, linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Thu, 2011-09-22 at 15:25 +0000, smitha.vanga@wipro.com wrote: > Hi Scott, > > When I call if i2c_master_send(&ds75->i2c_client,buffer,2) it > crashes. In module initialization I don't see any errors. Below are > kernel messages. Could you please let me know what may be the reason > for this crash. Why the heck are you trying to write a new driver for ds75 ? There's already one in there (lm75, same thing). Cheers, Ben. > -----------Logs--------- > Loading Temperature Sensor Interface module (temp_if.ko) > ds75_init > DS75_DRIVER : Open > DS75_DRIVER : Device Open Successful! > DS75_DRIVER : ioctl TEMP_READ cmd 1 > ds75_temp_read calling i2c_master_send > In i2c_master_send enter------- > Unable to handle kernel paging request for data at address 0x00000010 > Faulting instruction address: 0xc01b06a4 > Oops: Kernel access of bad area, sig: 11 [#1] > > Modules linked in: temp_if gpio_if > NIP: C01B06A4 LR: C01B06A0 CTR: C019BC90 > REGS: c309bdc0 TRAP: 0300 Not tainted > (2.6.21.7-hrt1-cfs-v22-grsec-WR2.0bl_cgl) > MSR: 00009032 CR: 44004822 XER: 00000000 > DAR: 00000010, DSISR: 20000000 > TASK = c306f810[145] 'epn412' THREAD: c309a000 > GPR00: 00007D00 C309BE70 C306F810 C02A0000 00000001 00000001 00000000 > FDFBD0A0 > GPR08: 003DE8A0 A827A936 00003F78 C02EAE88 00000001 1011C7C0 03EFD000 > FFFFFFFF > GPR16: 00000001 00000000 007FFC00 37942FA8 1012EAC0 1001E530 37942FB4 > 00000003 > GPR24: 37942FB4 00000000 003D0F00 C309BEA8 FFFFFFF7 00000008 C309BEA8 > 00000002 > Call Trace: > [C309BE70] [C01B0698] (unreliable) > [C309BEA0] [C50B71DC] > [C309BED0] [C007A0D0] > [C309BEE0] [C007A158] > [C309BF10] [C007A4EC] > [C309BF40] [C000E780] > --- Exception: c01Instruction dump: > 7c0802a6 bf61001c 7c7d1b78 3c60c02a 386313b4 7cbf2b78 90010034 > 7c9b2378 > 4be6bc79 386007d0 4be5ac6d 3c60c02a <839d0008> 386313d8 4be6bc61 > a01d0004 > > > > > Below is the driver code. > ------------------------- > > #include "temp_if.h" > #include > #include > //#include > > > #define I2C_DEBUG > > #ifdef I2C_DEBUG > #define I2C_DBG1(x) printk(KERN_WARNING x) > #define I2C_DBG2(x,y) printk(KERN_WARNING x,y) > #define I2C_DBG3(x,y,z) printk(KERN_WARNING x,y,z) > #define I2C_DBG4(w,x,y,z) printk(KERN_WARNING w,x,y,z) > #else > #define I2C_DBG1(x) > #define I2C_DBG2(x,y) > #define I2C_DBG3(x,y,z) > #define I2C_DBG4(w,x,y,z) > #endif > > /* Function Prototype */ > static int ds75_open(struct inode *inode, struct file *filp); > static int ds75_iotcl(struct inode *inode, struct file *flip, unsigned > int cmd, unsigned long arg); > static int ds75_release(struct inode *inode, struct file *flip); > int ds75_attach_client(struct ds75_data * ds75, struct i2c_adapter > *adapter); > > int ds75_attach_adapter(struct i2c_adapter *adapter); > int ds75_detach_client(struct i2c_client *client); > > > > > /* Structure */ > static struct file_operations tmpsensor_fops = > { > ioctl: ds75_iotcl, > open: ds75_open, > release: ds75_release, > > }; > > static struct i2c_driver ds75_driver = { > .driver = { > .name = "DS75", > }, > .attach_adapter = ds75_attach_adapter, > .detach_client = ds75_detach_client, > }; > > /* Global Variable */ > static int s_nI2CMajor = 0; > static int s_bI2CDevOpen = 0; > static int s_nUseCnt = 0; > struct ds75_data *ds75; > > > static int ds75_open(struct inode *inode, struct file *flip) > { > I2C_DBG1( "DS75_DRIVER : Open\n"); > if(s_bI2CDevOpen == 0) > { > I2C_DBG1("DS75_DRIVER : Device Open Successful!\n"); > s_bI2CDevOpen = 1; > s_nUseCnt++; > > } > else > { > I2C_DBG1("DS75_DRIVER : Device Already Opened Successfully!\n"); > s_bI2CDevOpen = 1; > s_nUseCnt++; > } > return 0; > } > > > static int ds75_release(struct inode *inode, struct file *flip) > { > I2C_DBG1 (KERN_INFO "Entering ds75_release\n" ); > if(s_bI2CDevOpen) > { > if( s_nUseCnt <= 0 ) > { > I2C_DBG1("DS75_DRIVER : i2c driver can't be released!\n"); > return -EIO; > } > else > { > I2C_DBG1("DS75_DRIVER : Release Successful!\n"); > s_nUseCnt--; > if( s_nUseCnt == 0 ) > { > s_bI2CDevOpen = 0; > I2C_DBG1("DS75_DRIVER : I2C Driver is Closed!\n"); > } > } > return 0; > } > else > { > I2C_DBG1("DS75_DRIVER : Release Fail! (Device is Not Open)\n"); > return -EIO; > } > } > > /* > This function will read the Temperature from the device and copies to > user space > */ > static int ds75_temp_read(struct ds75_msg_t *pData) > { > //unsigned char buffer[4]; > signed char buffer[4]; > int ret; > buffer[0]=0; /* Writing 0 in to Pointer register. --> Temprature > read register */ > if ((ret = i2c_master_send(&ds75->i2c_client,buffer,2)) !=2) > { > I2C_DBG2("DS75_DRIVER : Error writing to I2C ret = %d > \n",ret); > return -1; > } > > /* reading from the temperature read register */ > if (i2c_master_recv(&ds75->i2c_client,buffer,2)!= 2) > { > I2C_DBG1("DS75_DRIVER : Error reading from I2C\n"); > return -1; > } > > //I2C_DBG3("DS75_DRIVER: data[0] = %d, data[1] = %d > \n",buffer[0],buffer[1]); > //I2C_DBG3("DS75_DRIVER: data[0] = %d, data[1] = %d > \n",buffer[0],buffer[1]); > > /* Copy User Memory Area */ > if(copy_to_user(pData->ReadData,buffer, 2 ) != 0) > { > I2C_DBG1("DS75_DRIVER : error in copying to user > space"); > return -1; > } > > return 0; /* Success */ > > } > > > static int ds75_iotcl(struct inode *inode, struct file *flip, unsigned > int cmd, unsigned long arg) > { > int nRetVal = 0; > > if( ((struct ds75_msg_t *)arg) == NULL ){ > I2C_DBG1("DS75_DRIVER : ioctl Message Buff must not > be NULL\n"); > return -EFAULT; > } > > switch(cmd){ > case TEMP_READ: > I2C_DBG2("DS75_DRIVER : ioctl TEMP_READ cmd % > d\n",cmd); > nRetVal = ds75_temp_read((struct ds75_msg_t *) > arg); > break; > > default: > /* Error! */ > I2C_DBG1("DS75_DRIVER : Command not > implemented\n"); > nRetVal = -EIO; > break; > } > return nRetVal; > } > > > /* > * i2c_attach_client - tries to detect and initialize slics > */ > int ds75_attach_client(struct ds75_data * ds75, struct i2c_adapter > *adapter) > { > struct i2c_client * client; > > /* register i2c client */ > client = &ds75->i2c_client; > client->adapter = adapter; > client->driver = &ds75_driver; > // client->flags = I2C_CLIENT_ALLOW_USE; > client->addr = DS75_ADDR; > strlcpy(client->name, "DS75", I2C_NAME_SIZE); > i2c_set_clientdata(client, ds75); > > if (i2c_attach_client(client)) > return -1; > > printk (KERN_INFO DS75_DRIVER_NAME ": I2C client attached\n"); > return 0; > } > > /* > * i2c_attach_adapter - initializes the maxim driver > */ > int ds75_attach_adapter(struct i2c_adapter *adapter) > { > /* allocate maxim_data structure */ > ds75 = kmalloc(sizeof (struct ds75_data), GFP_KERNEL); > if (ds75 == NULL) > { > printk (KERN_ERR "Unable to allocate memory for ds75 temp > sensor driver\n"); > goto err0; > } > memset(ds75, 0, sizeof(struct ds75_data)); > > /* Attach Spi Client */ > if (ds75_attach_client(ds75, adapter) != 0) > { > printk (KERN_ERR "No ds75 device detected\n"); > goto err1; > } > > return 0; > > err1: > kfree(ds75); > err0: > return -1; > } > > /* > * i2c_detach_client - cleans up the maxim driver > */ > int ds75_detach_client(struct i2c_client *client) > { > struct ds75_data *ds75 = i2c_get_clientdata(client); > > if (ds75->owned_irq) > { > free_irq(ds75->irq, ds75); > ds75->owned_irq = 0; > > } > > i2c_detach_client(&ds75->i2c_client); > > kfree (ds75); // Free the kernel memory */ > > return 0; > } > > > > > /* > * Temperature sensor DS75 init - > * > */ > int __init ds75_init(void) > { > int rc; > rc = i2c_add_driver(&ds75_driver); > if (rc) > { > printk (KERN_ERR DS75_DRIVER_NAME ": unable to add > driver\n"); > return rc; > } > > rc = register_chrdev (DS75_DEVICE_MAJOR_NUM, DS75_DRIVER_NAME, > &tmpsensor_fops); > if (rc) > { > printk (KERN_ERR DS75_DRIVER_NAME ": unable to > register char device\n"); > return rc; > } > > return 0; > } > > /** > * maxim _exit - > * > * > */ > void __exit ds75_exit(void) > { > unregister_chrdev (DS75_DEVICE_MAJOR_NUM, DS75_DRIVER_NAME); > > i2c_del_driver(&ds75_driver); > } > > MODULE_AUTHOR("xxxx"); > MODULE_DESCRIPTION("DS75 I2C driver"); > MODULE_LICENSE("GPL"); > > module_init(ds75_init); > module_exit(ds75_exit); > > > Regards, > Smitha > > Please do not print this email unless it is absolutely necessary. > > The information contained in this electronic message and any > attachments to this message are intended for the exclusive use of the > addressee(s) and may contain proprietary, confidential or privileged > information. If you are not the intended recipient, you should not > disseminate, distribute or copy this e-mail. Please notify the sender > immediately and destroy all copies of this message and any > attachments. > > WARNING: Computer viruses can be transmitted via email. The recipient > should check this email and any attachments for the presence of > viruses. The company accepts no liability for any damage caused by any > virus transmitted by this email. > > www.wipro.com > > _______________________________________________ > Linuxppc-dev mailing list > Linuxppc-dev@lists.ozlabs.org > https://lists.ozlabs.org/listinfo/linuxppc-dev From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-fx0-f51.google.com (mail-fx0-f51.google.com [209.85.161.51]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id 6A8621007D3 for ; Fri, 23 Sep 2011 16:06:02 +1000 (EST) Received: by fxe22 with SMTP id 22so3676970fxe.38 for ; Thu, 22 Sep 2011 23:05:57 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <1316741319.2629.0.camel@pasglop> References: <40631E9A2581F14BA60888C87A76A1FE012ED4@HYD-MKD-MBX4.wipro.com> <1316741319.2629.0.camel@pasglop> Date: Fri, 23 Sep 2011 11:35:56 +0530 Message-ID: Subject: Re: I2c driver crash From: MohanReddy koppula To: Benjamin Herrenschmidt Content-Type: text/plain; charset=ISO-8859-1 Cc: scottwood@freescale.com, linuxppc-dev@lists.ozlabs.org, smitha.vanga@wipro.com List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , I think the client->adapter pointer is NULL. Make sure the ds75_attach_adapte() is called before you invoke ioctl(). -Mohan On Fri, Sep 23, 2011 at 6:58 AM, Benjamin Herrenschmidt wrote: > On Thu, 2011-09-22 at 15:25 +0000, smitha.vanga@wipro.com wrote: >> Hi Scott, >> >> When I call if =A0i2c_master_send(&ds75->i2c_client,buffer,2) it >> crashes. In module initialization I don't see any errors. Below are >> kernel messages. Could you please let me know what may be the reason >> for this crash. > > Why the heck are you trying to write a new driver for ds75 ? There's > already one in there (lm75, same thing). > > Cheers, > Ben. > >> -----------Logs--------- >> Loading Temperature Sensor Interface module (temp_if.ko) >> ds75_init >> DS75_DRIVER : Open >> DS75_DRIVER : Device Open Successful! >> DS75_DRIVER =A0: ioctl TEMP_READ cmd 1 >> =A0ds75_temp_read calling i2c_master_send >> In i2c_master_send enter------- >> Unable to handle kernel paging request for data at address 0x00000010 >> Faulting instruction address: 0xc01b06a4 >> Oops: Kernel access of bad area, sig: 11 [#1] >> >> Modules linked in: temp_if gpio_if >> NIP: C01B06A4 LR: C01B06A0 CTR: C019BC90 >> REGS: c309bdc0 TRAP: 0300 =A0 Not tainted >> (2.6.21.7-hrt1-cfs-v22-grsec-WR2.0bl_cgl) >> MSR: 00009032 =A0CR: 44004822 =A0XER: 00000000 >> DAR: 00000010, DSISR: 20000000 >> TASK =3D c306f810[145] 'epn412' THREAD: c309a000 >> GPR00: 00007D00 C309BE70 C306F810 C02A0000 00000001 00000001 00000000 >> FDFBD0A0 >> GPR08: 003DE8A0 A827A936 00003F78 C02EAE88 00000001 1011C7C0 03EFD000 >> FFFFFFFF >> GPR16: 00000001 00000000 007FFC00 37942FA8 1012EAC0 1001E530 37942FB4 >> 00000003 >> GPR24: 37942FB4 00000000 003D0F00 C309BEA8 FFFFFFF7 00000008 C309BEA8 >> 00000002 >> Call Trace: >> [C309BE70] [C01B0698] =A0(unreliable) >> [C309BEA0] [C50B71DC] >> [C309BED0] [C007A0D0] >> [C309BEE0] [C007A158] >> [C309BF10] [C007A4EC] >> [C309BF40] [C000E780] >> --- Exception: c01Instruction dump: >> 7c0802a6 bf61001c 7c7d1b78 3c60c02a 386313b4 7cbf2b78 90010034 >> 7c9b2378 >> 4be6bc79 386007d0 4be5ac6d 3c60c02a <839d0008> 386313d8 4be6bc61 >> a01d0004 >> >> >> >> >> Below is the driver code. >> ------------------------- >> >> #include "temp_if.h" >> #include >> #include >> //#include >> >> >> #define I2C_DEBUG >> >> #ifdef =A0 =A0 =A0I2C_DEBUG >> #define =A0 =A0 I2C_DBG1(x) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 printk(KERN_= WARNING x) >> #define =A0 =A0 I2C_DBG2(x,y) =A0 =A0 =A0 =A0 =A0 =A0 =A0 printk(KERN_WA= RNING x,y) >> #define =A0 =A0 I2C_DBG3(x,y,z) =A0 =A0 =A0 =A0 =A0 =A0 printk(KERN_WARN= ING x,y,z) >> #define =A0 =A0 I2C_DBG4(w,x,y,z) =A0 =A0 =A0 =A0 =A0 printk(KERN_WARNIN= G w,x,y,z) >> #else >> #define I2C_DBG1(x) >> #define I2C_DBG2(x,y) >> #define I2C_DBG3(x,y,z) >> #define I2C_DBG4(w,x,y,z) >> #endif >> >> /* Function Prototype */ >> static int ds75_open(struct inode *inode, struct file *filp); >> static int ds75_iotcl(struct inode *inode, struct file *flip, unsigned >> int cmd, unsigned long arg); >> static int ds75_release(struct inode *inode, struct file *flip); >> int ds75_attach_client(struct ds75_data * ds75, struct i2c_adapter >> *adapter); >> >> int ds75_attach_adapter(struct i2c_adapter *adapter); >> int ds75_detach_client(struct i2c_client *client); >> >> >> >> >> /* Structure */ >> static struct file_operations tmpsensor_fops =3D >> { >> =A0 =A0 =A0 =A0 ioctl: =A0 =A0 =A0 =A0 =A0ds75_iotcl, >> =A0 =A0 =A0 =A0 open: =A0 =A0 =A0 =A0 =A0 ds75_open, >> =A0 =A0 =A0 =A0 release: =A0 =A0 =A0 =A0ds75_release, >> >> }; >> >> static struct i2c_driver ds75_driver =3D { >> =A0 =A0 =A0 =A0 .driver =3D { >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 .name =A0 =3D "DS75", >> =A0 =A0 =A0 =A0 }, >> =A0 =A0 =A0 =A0 .attach_adapter =3D ds75_attach_adapter, >> =A0 =A0 =A0 =A0 .detach_client =A0=3D ds75_detach_client, >> }; >> >> /* Global Variable */ >> static int s_nI2CMajor =3D 0; >> static int s_bI2CDevOpen =3D 0; >> static int s_nUseCnt =3D 0; >> struct ds75_data *ds75; >> >> >> static int ds75_open(struct inode *inode, struct file *flip) >> { >> =A0 I2C_DBG1( "DS75_DRIVER : Open\n"); >> =A0 if(s_bI2CDevOpen =3D=3D 0) >> =A0 =A0 { >> =A0 =A0 =A0 I2C_DBG1("DS75_DRIVER : Device Open Successful!\n"); >> =A0 =A0 =A0 s_bI2CDevOpen =3D 1; >> =A0 =A0 =A0 s_nUseCnt++; >> >> =A0 =A0 } >> =A0 else >> =A0 =A0 { >> =A0 =A0 =A0 I2C_DBG1("DS75_DRIVER : Device Already Opened Successfully!\= n"); >> =A0 =A0 =A0 s_bI2CDevOpen =3D 1; >> =A0 =A0 =A0 s_nUseCnt++; >> =A0 =A0 } >> =A0 return 0; >> } >> >> >> static int ds75_release(struct inode *inode, struct file *flip) >> { >> =A0 I2C_DBG1 (KERN_INFO "Entering ds75_release\n" ); >> =A0 if(s_bI2CDevOpen) >> =A0 =A0 { >> =A0 =A0 =A0 if( s_nUseCnt <=3D 0 ) >> =A0 =A0 =A0 =A0 { >> =A0 =A0 =A0 =A0 =A0 I2C_DBG1("DS75_DRIVER =A0: i2c driver can't be relea= sed!\n"); >> =A0 =A0 =A0 =A0 =A0 return -EIO; >> =A0 =A0 =A0 =A0 } >> =A0 =A0 =A0 else >> =A0 =A0 =A0 =A0 { >> =A0 =A0 =A0 =A0 =A0 I2C_DBG1("DS75_DRIVER =A0: Release Successful!\n"); >> =A0 =A0 =A0 =A0 =A0 s_nUseCnt--; >> =A0 =A0 =A0 =A0 =A0 if( s_nUseCnt =3D=3D 0 ) >> =A0 =A0 =A0 =A0 =A0 =A0 { >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 s_bI2CDevOpen =3D 0; >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 I2C_DBG1("DS75_DRIVER =A0: I2C Driver is Clo= sed!\n"); >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 } >> =A0 =A0 =A0 =A0 } >> =A0 =A0 =A0 return 0; >> =A0 =A0 } >> =A0 else >> =A0 =A0 { >> =A0 =A0 =A0 I2C_DBG1("DS75_DRIVER =A0: Release Fail! (Device is Not Open= )\n"); >> =A0 =A0 =A0 return -EIO; >> =A0 =A0 } >> } >> >> /* >> =A0This function will read the Temperature from the device and copies to >> user space >> */ >> static int ds75_temp_read(struct ds75_msg_t *pData) >> { >> =A0 =A0 =A0//unsigned char buffer[4]; >> =A0 =A0 =A0signed char buffer[4]; >> =A0 =A0 =A0int ret; >> =A0 =A0 =A0buffer[0]=3D0; =A0/* Writing 0 in to Pointer register. --> Te= mprature >> read register */ >> =A0 =A0 =A0if ((ret =3D i2c_master_send(&ds75->i2c_client,buffer,2)) != =3D2) >> =A0 =A0 =A0{ >> =A0 =A0 =A0 =A0 =A0I2C_DBG2("DS75_DRIVER =A0: Error writing to I2C ret = =3D %d >> \n",ret); >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0return -1; >> =A0 =A0 =A0} >> >> =A0 =A0 =A0/* reading from the temperature read register */ >> =A0 =A0 =A0if (i2c_master_recv(&ds75->i2c_client,buffer,2)!=3D 2) >> =A0 =A0 =A0{ >> =A0 =A0 =A0 =A0 =A0I2C_DBG1("DS75_DRIVER =A0: Error reading from I2C\n")= ; >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0return -1; >> =A0 =A0 =A0} >> >> =A0 =A0 =A0//I2C_DBG3("DS75_DRIVER: data[0] =3D %d, data[1] =3D %d >> \n",buffer[0],buffer[1]); >> =A0 =A0 =A0 =A0 //I2C_DBG3("DS75_DRIVER: data[0] =3D %d, data[1] =3D %d >> \n",buffer[0],buffer[1]); >> >> =A0 =A0 =A0/* Copy User Memory Area */ >> =A0 =A0 =A0 =A0 =A0 =A0if(copy_to_user(pData->ReadData,buffer, 2 ) !=3D = 0) >> =A0 =A0 =A0 =A0 =A0 =A0{ >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 I2C_DBG1("DS75_DRIVER =A0: error in copying = to user >> space"); >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 return -1; >> =A0 =A0 =A0 =A0 =A0 =A0} >> >> =A0 =A0 =A0return 0; =A0/* Success */ >> >> } >> >> >> static int ds75_iotcl(struct inode *inode, struct file *flip, unsigned >> int cmd, unsigned long arg) >> { >> =A0 =A0 =A0 =A0 int nRetVal =3D 0; >> >> =A0 =A0 =A0 =A0 if( ((struct ds75_msg_t *)arg) =3D=3D NULL ){ >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 I2C_DBG1("DS75_DRIVER =A0: ioctl Message= Buff must not >> be NULL\n"); >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 return -EFAULT; >> =A0 =A0 =A0 =A0 } >> >> =A0 =A0 =A0 =A0 switch(cmd){ >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 case TEMP_READ: >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 I2C_DBG2("DS75_DRIVER = =A0: ioctl TEMP_READ cmd % >> d\n",cmd); >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 nRetVal =3D ds75_temp_re= ad((struct ds75_msg_t *) >> arg); >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 break; >> >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 default: >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 /* Error! */ >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 I2C_DBG1("DS75_DRIVER = =A0: Command =A0not >> implemented\n"); >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 nRetVal =3D -EIO; >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 break; >> =A0 =A0 =A0 =A0 } >> =A0 =A0 =A0 =A0 return nRetVal; >> } >> >> >> /* >> =A0* =A0i2c_attach_client - tries to detect and initialize slics >> */ >> int ds75_attach_client(struct ds75_data * ds75, struct i2c_adapter >> *adapter) >> { >> =A0 =A0 =A0 =A0 struct i2c_client * client; >> >> =A0 =A0 =A0 =A0 /* register i2c client */ >> =A0 =A0 =A0 =A0 client =3D &ds75->i2c_client; >> =A0 =A0 =A0 =A0 client->adapter =3D adapter; >> =A0 =A0 =A0 =A0 client->driver =3D &ds75_driver; >> // =A0 =A0 =A0client->flags =3D I2C_CLIENT_ALLOW_USE; >> =A0 client->addr =3D DS75_ADDR; >> =A0 strlcpy(client->name, "DS75", I2C_NAME_SIZE); >> =A0 =A0 =A0 =A0 i2c_set_clientdata(client, ds75); >> >> =A0 =A0 =A0 =A0 if (i2c_attach_client(client)) >> =A0 =A0 =A0return -1; >> >> =A0 =A0 =A0 =A0 printk (KERN_INFO DS75_DRIVER_NAME ": I2C client attache= d\n"); >> =A0 =A0 =A0 =A0 return 0; >> } >> >> /* >> =A0* =A0i2c_attach_adapter - initializes the maxim driver >> */ >> int ds75_attach_adapter(struct i2c_adapter *adapter) >> { >> =A0 =A0 =A0 =A0 /* allocate maxim_data structure */ >> =A0 =A0 =A0 =A0 ds75 =3D kmalloc(sizeof (struct ds75_data), GFP_KERNEL); >> =A0 =A0 =A0 =A0 if (ds75 =3D=3D NULL) >> =A0 =A0 =A0 =A0 { >> =A0 =A0 =A0 =A0 =A0 =A0printk (KERN_ERR "Unable to allocate memory for d= s75 temp >> sensor driver\n"); >> =A0 =A0 =A0 =A0 =A0 =A0goto err0; >> =A0 =A0 =A0 =A0 } >> =A0 =A0 =A0 =A0 memset(ds75, 0, sizeof(struct ds75_data)); >> >> =A0 =A0 =A0 =A0 /* Attach Spi Client */ >> =A0 =A0 =A0 =A0 if (ds75_attach_client(ds75, adapter) !=3D 0) >> =A0 =A0 =A0 =A0 { >> =A0 =A0 =A0 =A0 =A0 =A0printk (KERN_ERR "No ds75 device detected\n"); >> =A0 =A0 =A0 =A0 =A0 =A0goto err1; >> =A0 =A0 =A0 =A0 } >> >> =A0 =A0 =A0 =A0 return 0; >> >> err1: >> =A0 =A0 =A0 =A0 kfree(ds75); >> err0: >> =A0 =A0 =A0 =A0 return -1; >> } >> >> /* >> =A0* =A0i2c_detach_client - cleans up the maxim driver >> */ >> int ds75_detach_client(struct i2c_client *client) >> { >> =A0 =A0 =A0 =A0 struct ds75_data *ds75 =3D i2c_get_clientdata(client); >> >> =A0 =A0 =A0 =A0 if (ds75->owned_irq) >> =A0 =A0 =A0 =A0 { >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 free_irq(ds75->irq, ds75); >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 ds75->owned_irq =3D 0; >> >> =A0 =A0 =A0 =A0 } >> >> =A0 =A0 =A0 =A0 i2c_detach_client(&ds75->i2c_client); >> >> =A0 =A0 =A0 =A0 kfree (ds75); =A0 =A0 =A0// Free the kernel memory */ >> >> =A0 =A0 =A0 =A0 return 0; >> } >> >> >> >> >> /* >> =A0* Temperature sensor DS75 init - >> =A0* >> =A0*/ >> int __init ds75_init(void) >> { >> =A0 =A0 =A0 =A0 int rc; >> =A0 =A0 =A0 =A0 rc =3D i2c_add_driver(&ds75_driver); >> =A0 =A0 =A0 =A0 if (rc) >> =A0 =A0 =A0 =A0 { >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 printk (KERN_ERR DS75_DRIVER_NAME ": una= ble to add >> driver\n"); >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 return rc; >> =A0 =A0 =A0 =A0 } >> >> =A0 =A0 =A0 =A0 rc =3D register_chrdev (DS75_DEVICE_MAJOR_NUM, DS75_DRIV= ER_NAME, >> &tmpsensor_fops); >> =A0 =A0 =A0 =A0 if (rc) >> =A0 =A0 =A0 =A0 { >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 printk (KERN_ERR DS75_DRIVER_NAME ": una= ble to >> register char device\n"); >> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 return rc; >> =A0 =A0 =A0 =A0 } >> >> =A0 =A0 =A0 =A0 return 0; >> } >> >> /** >> =A0* maxim _exit - >> =A0* >> =A0* >> =A0*/ >> void __exit ds75_exit(void) >> { >> =A0 =A0 =A0 =A0 unregister_chrdev (DS75_DEVICE_MAJOR_NUM, DS75_DRIVER_NA= ME); >> >> =A0 =A0 =A0 =A0 i2c_del_driver(&ds75_driver); >> } >> >> MODULE_AUTHOR("xxxx"); >> MODULE_DESCRIPTION("DS75 I2C driver"); >> MODULE_LICENSE("GPL"); >> >> module_init(ds75_init); >> module_exit(ds75_exit); >> >> >> Regards, >> Smitha >> >> Please do not print this email unless it is absolutely necessary. >> >> The information contained in this electronic message and any >> attachments to this message are intended for the exclusive use of the >> addressee(s) and may contain proprietary, confidential or privileged >> information. If you are not the intended recipient, you should not >> disseminate, distribute or copy this e-mail. Please notify the sender >> immediately and destroy all copies of this message and any >> attachments. >> >> WARNING: Computer viruses can be transmitted via email. The recipient >> should check this email and any attachments for the presence of >> viruses. The company accepts no liability for any damage caused by any >> virus transmitted by this email. >> >> www.wipro.com >> >> _______________________________________________ >> Linuxppc-dev mailing list >> Linuxppc-dev@lists.ozlabs.org >> https://lists.ozlabs.org/listinfo/linuxppc-dev > > > _______________________________________________ > Linuxppc-dev mailing list > Linuxppc-dev@lists.ozlabs.org > https://lists.ozlabs.org/listinfo/linuxppc-dev > From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from wipro-blr-out01.wipro.com (wipro-blr-out01.wipro.com [203.91.198.74]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 162F4B6F71 for ; Mon, 3 Oct 2011 23:38:09 +1100 (EST) From: To: Subject: Request_irq fails for IRQ2 Date: Mon, 3 Oct 2011 12:31:34 +0000 Message-ID: <40631E9A2581F14BA60888C87A76A1FE0145B6@HYD-MKD-MBX4.wipro.com> In-Reply-To: <4E57FD3D.6090809@freescale.com> Content-Type: multipart/alternative; boundary="_000_40631E9A2581F14BA60888C87A76A1FE0145B6HYDMKDMBX4wiproco_" MIME-Version: 1.0 Cc: linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , --_000_40631E9A2581F14BA60888C87A76A1FE0145B6HYDMKDMBX4wiproco_ Content-Type: text/plain; charset="us-ascii" content-transfer-encoding: quoted-printable Hi Scott, I try to request an IRQ (IRQ2 and IRQ3 which are ineterrupt no 20 and 21 in= mpc8247)in my driver . The Call fails in setup_irq in Manage.c at /kernel/irq. Setup _irq returns -ENOSYS if (desc->irq_data.chip =3D=3D &no_irq_chip) return -ENOSYS; I just want to know why it fails. Below is the call to request irq in my dri= ver. #define CPLD1_INTERRUPT 20 if (request_irq(CPLD1_INTERRUPT,cpld_irq_handler, 0, GPIO_CHAR_PATH, NULL)) { printk(KERN_ERR "gpio_init: Could not grab IRQ line for CPLD\n"); goto err1; } Regards, Smitha Please do not print this email unless it is absolutely necessary. =0A= =0A= The information contained in this electronic message and any attachments to= this message are intended for the exclusive use of the addressee(s) and may= contain proprietary, confidential or privileged information. If you are not= the intended recipient, you should not disseminate, distribute or copy this= e-mail. Please notify the sender immediately and destroy all copies of this= message and any attachments. =0A= =0A= WARNING: Computer viruses can be transmitted via email. The recipient should= check this email and any attachments for the presence of viruses. The compa= ny accepts no liability for any damage caused by any virus transmitted by th= is email. =0A= =0A= www.wipro.com --_000_40631E9A2581F14BA60888C87A76A1FE0145B6HYDMKDMBX4wiproco_ Content-Type: text/html; charset="us-ascii" content-transfer-encoding: quoted-printable

Hi Scott,

I try to request an IRQ (IRQ2 and IRQ3 which are ineterrupt no 20 and= 21 in mpc8247)in my driver . The

Call fails in setup_irq in Manage.c at /kernel/irq.

Setup _irq returns -ENOSYS

if (desc->irq_data.chip =3D=3D &no_irq_chip)=

&nb= sp; return -ENOSYS;

I just want to know why it fails. Below is the call to request irq in m= y driver.

#define CPLD1_INTERRUPT 20

if (request_irq(CPLD1_INTERRUPT,cpld_irq_handler, 0, GPIO_CHAR_PATH,= NULL))

{

printk(KERN_ERR "gpio_init: Could n= ot grab IRQ line for CPLD\n");

goto err1;

}

Regards,

Smitha

Please do not print this email unl= ess it is absolutely necessary.

=0A= =0A= =0A=

=0A= =0A=

=0A=

=0A= www.wipro.com=0A=

--_000_40631E9A2581F14BA60888C87A76A1FE0145B6HYDMKDMBX4wiproco_-- From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from wipro-blr-out01.wipro.com (wipro-blr-out01.wipro.com [203.91.198.74]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id DAD1AB6FAF for ; Sat, 31 Dec 2011 00:07:40 +1100 (EST) From: To: Subject: Mac address in the DTS file Date: Fri, 30 Dec 2011 12:51:55 +0000 Message-ID: <40631E9A2581F14BA60888C87A76A1FE01C6BB@HYD-MKD-MBX4.wipro.com> In-Reply-To: <4E57FD3D.6090809@freescale.com> Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Cc: linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi Scott, In my DTS file for mpc8247 I have defined the ether MAC in the node as below= . ethernet@24000 { #address-cells =3D <1>; #size-cells =3D <0>; device_type =3D "network"; device-id =3D <1>; compatible =3D "fs_enet"; model =3D "FCC"; reg =3D <11300 20 8400 100 11380 30>; mac-address =3D [ 00 e0 ee 00 05 2e ]; interrupts =3D <20 2>; interrupt-parent =3D <10c00>; phy-handle =3D <2452000>; rx-clock =3D <13>; tx-clock =3D <12>; }; The driver is working and everything is fine. But as I defined the mac-addre= ss as 00:e0:ee:00:05:2e Its constant. Am not able to change this mac -address in linux once the targ= et is up with LINUX. How do I change the MAC address. If different targets boards are connected o= n the network then every board will have the same MAC address as the .dtb f= ile is the same. How to go about this problem? It would be a great help if you answer soon. Regards, Smitha Please do not print this email unless it is absolutely necessary. =0A= =0A= The information contained in this electronic message and any attachments to= this message are intended for the exclusive use of the addressee(s) and may= contain proprietary, confidential or privileged information. If you are not= the intended recipient, you should not disseminate, distribute or copy this= e-mail. Please notify the sender immediately and destroy all copies of this= message and any attachments. =0A= =0A= WARNING: Computer viruses can be transmitted via email. The recipient should= check this email and any attachments for the presence of viruses. The compa= ny accepts no liability for any damage caused by any virus transmitted by th= is email. =0A= =0A= www.wipro.com From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from pm1.terions.de (pm1.terions.de [83.137.96.25]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 7BAC6B6FA1 for ; Sat, 31 Dec 2011 01:07:05 +1100 (EST) Message-ID: <4EFDC3F2.7000607@lkmail.de> Date: Fri, 30 Dec 2011 15:00:18 +0100 From: Lorenz Kolb MIME-Version: 1.0 To: smitha.vanga@wipro.com Subject: Re: Mac address in the DTS file References: <40631E9A2581F14BA60888C87A76A1FE01C6BB@HYD-MKD-MBX4.wipro.com> In-Reply-To: <40631E9A2581F14BA60888C87A76A1FE01C6BB@HYD-MKD-MBX4.wipro.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Cc: scottwood@freescale.com, linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi Smitha, actually it should work as normal On 12/30/2011 1:51 PM, smitha.vanga@wipro.com wrote: > Its constant. Am not able to change this mac -address in linux once the target is up with LINUX. > How do I change the MAC address. actually it should work as normal: ifconfig ethX down ifconfig ethX hw ether 00:11:22:33:44:55 ifconfig ethX up > If different targets boards are connected on the network then every board will have the same MAC address as the .dtb file is the same. How to go about this problem? Depends on your setup: normally the real MAC is stored on some onboard configuration space (eeprom or flash). Afterwards there are multiple ways you could work aroun the problem: most elegant: make your bootloader replace the fake MAC with the real one within the dtb. Most simple one: have a startup script that reads the real MAC and does the ifconfig magic. Regards, Lorenz From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-out.m-online.net (mail-out.m-online.net [IPv6:2001:a60:0:70:0:1:25:1]) by ozlabs.org (Postfix) with ESMTP id AD8C8B6FBE for ; Sat, 31 Dec 2011 05:28:15 +1100 (EST) To: smitha.vanga@wipro.com From: Wolfgang Denk Subject: Re: Mac address in the DTS file MIME-Version: 1.0 Content-type: text/plain; charset=UTF-8 In-reply-to: <40631E9A2581F14BA60888C87A76A1FE01C6BB@HYD-MKD-MBX4.wipro.com> References: <40631E9A2581F14BA60888C87A76A1FE01C6BB@HYD-MKD-MBX4.wipro.com> Date: Fri, 30 Dec 2011 19:28:06 +0100 Message-Id: <20111230182806.21CF61931810@gemini.denx.de> Cc: scottwood@freescale.com, linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Dear smitha.vanga@wipro.com, In message <40631E9A2581F14BA60888C87A76A1FE01C6BB@HYD-MKD-MBX4.wipro.com> you wrote: > > In my DTS file for mpc8247 I have defined the ether MAC in the node as below. On a MPC82xx there is a chance that you are using U-Boot as boot loader... > How do I change the MAC address. If different targets boards are U-Boot can store (it the environment variables) MAC addresses and update the DT with this information. Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de "Beware of bugs in the above code; I have only proved it correct, not tried it." - Donald Knuth From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from TX2EHSOBE001.bigfish.com (tx2ehsobe001.messaging.microsoft.com [65.55.88.11]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (Client CN "mail.global.frontbridge.com", Issuer "Microsoft Secure Server Authority" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id DBE07B6FA4 for ; Tue, 3 Jan 2012 04:53:54 +1100 (EST) Received: from mail146-tx2 (localhost [127.0.0.1]) by mail146-tx2-R.bigfish.com (Postfix) with ESMTP id CD82C5402FC for ; Mon, 2 Jan 2012 17:53:50 +0000 (UTC) Message-ID: <4F01EEFE.9040305@freescale.com> Date: Mon, 2 Jan 2012 11:53:02 -0600 From: Scott Wood MIME-Version: 1.0 To: Subject: Re: Mac address in the DTS file References: <40631E9A2581F14BA60888C87A76A1FE01C6BB@HYD-MKD-MBX4.wipro.com> In-Reply-To: <40631E9A2581F14BA60888C87A76A1FE01C6BB@HYD-MKD-MBX4.wipro.com> Content-Type: text/plain; charset="ISO-8859-1" Cc: linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 12/30/2011 06:51 AM, smitha.vanga@wipro.com wrote: > > Hi Scott, > > In my DTS file for mpc8247 I have defined the ether MAC in the node as below. > > ethernet@24000 { > #address-cells = <1>; > #size-cells = <0>; > device_type = "network"; > device-id = <1>; > compatible = "fs_enet"; > model = "FCC"; > reg = <11300 20 8400 100 11380 30>; > mac-address = [ 00 e0 ee 00 05 2e ]; > interrupts = <20 2>; > interrupt-parent = <10c00>; > phy-handle = <2452000>; > rx-clock = <13>; > tx-clock = <12>; > }; Others have answered your question (the mac address should not be in the .dts file -- it should be patched in by boot software), but I'd like to point out that this is a deprecated device tree binding that was very short-lived in a very old kernel, from an early attempt at 82xx support in arch/powerpc. Why are you still using it? It will not work with current kernels (which suggests you're also using a very old kernel). -Scott From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from wipro-blr-out02.wipro.com (wipro-blr-out02.wipro.com [203.91.198.75]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 3D202B6F68 for ; Tue, 10 Jan 2012 00:54:55 +1100 (EST) From: To: Subject: Mac address in the DT Date: Mon, 9 Jan 2012 13:54:11 +0000 Message-ID: <40631E9A2581F14BA60888C87A76A1FE01D34F@HYD-MKD-MBX4.wipro.com> In-Reply-To: <20111230182806.21CF61931810@gemini.denx.de> Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Cc: scottwood@freescale.com, linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi Wolfgang, I need to automate a sequence of commands. To do that I am setting a environ= ment variable with the sequence of commands. And using run command run the environment variable. But one of the command uses " in the command. So how do I save the command w= ith quotes. Below is the command which I want to set in the environment variable. setenv set_mac ""cp 0xffec0000 0x100000 1024;fdt addr 0x100000 8192;fdt set= /soc8272@f0000000/ethernet@24000 mac-address "[00 22 00 33 00 55]"" But when I saveenv the command doesnot get save as fdt set /soc8272@f0000000= /ethernet@24000 mac-address "[00 22 00 33 00 55]" Thanks & Regards, Smitha Please do not print this email unless it is absolutely necessary. =0A= =0A= The information contained in this electronic message and any attachments to= this message are intended for the exclusive use of the addressee(s) and may= contain proprietary, confidential or privileged information. If you are not= the intended recipient, you should not disseminate, distribute or copy this= e-mail. Please notify the sender immediately and destroy all copies of this= message and any attachments. =0A= =0A= WARNING: Computer viruses can be transmitted via email. The recipient should= check this email and any attachments for the presence of viruses. The compa= ny accepts no liability for any damage caused by any virus transmitted by th= is email. =0A= =0A= www.wipro.com From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gw1.transmode.se (gw1.transmode.se [195.58.98.146]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id B0F25B6F70 for ; Tue, 10 Jan 2012 01:20:27 +1100 (EST) In-Reply-To: <40631E9A2581F14BA60888C87A76A1FE01D34F@HYD-MKD-MBX4.wipro.com> References: <20111230182806.21CF61931810@gemini.denx.de> <40631E9A2581F14BA60888C87A76A1FE01D34F@HYD-MKD-MBX4.wipro.com> Subject: Re: Mac address in the DT To: Message-ID: From: Joakim Tjernlund Date: Mon, 9 Jan 2012 15:20:22 +0100 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Cc: scottwood@freescale.com, linuxppc-dev@lists.ozlabs.org, wd@denx.de List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , > > Hi Wolfgang, > > I need to automate a sequence of commands. To do that I am setting a environment variable with the sequence of commands. > And using run command run the environment variable. > > But one of the command uses " in the command. So how do I save the command with quotes. > > Below is the command which I want to set in the environment variable. > > setenv set_mac ""cp 0xffec0000 0x100000 1024;fdt addr 0x100000 8192;fdt set /soc8272@f0000000/ethernet@24000 mac-address "[00 22 00 33 00 55]"" > > But when I saveenv the command doesnot get save as fdt set /soc8272@f0000000/ethernet@24000 mac-address "[00 22 00 33 00 55]" > > Thanks & Regards, > Smitha Have you tried ...\"[00 22 00 33 00 55]\"" ? Jocke From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from wipro-blr-out02.wipro.com (wipro-blr-out02.wipro.com [203.91.198.75]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 8F588B6F70 for ; Tue, 10 Jan 2012 01:29:09 +1100 (EST) From: To: Subject: RE: Mac address in the DT Date: Mon, 9 Jan 2012 14:28:54 +0000 Message-ID: <40631E9A2581F14BA60888C87A76A1FE01D360@HYD-MKD-MBX4.wipro.com> In-Reply-To: Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Cc: scottwood@freescale.com, linuxppc-dev@lists.ozlabs.org, wd@denx.de List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi Joakim, I have tried it but it doesn't work. Just now found that with single ' quotes the entire sequence it works. >Setenv set_mac 'cp 0xffec0000 0x100000 1024;fdt addr 0xc00000 8192;fdt set= /soc8272@f0000000/ethernet@24000 mac-address "[00 44 00 55 00 66]";erase 0x= ffec0000 0xffec4000;cp 0xc00000 0xffec0000 1024;bootm 0xfe060000 - 0xffec000= 0' > run set_mac For the above command I want to replace the mac address with the ethaddr> Ho= w do I do that. I tried $ethaddr but I get extra : characters. >Setenv set_mac 'cp 0xffec0000 0x100000 1024;fdt addr 0xc00000 8192;fdt set= /soc8272@f0000000/ethernet@24000 mac-address $ethaddr;erase 0xffec0000 0xff= ec4000;cp 0xc00000 0xffec0000 1024;bootm 0xfe060000 - 0xffec0000' Regards, Smitha Please do not print this email unless it is absolutely necessary. =0A= =0A= The information contained in this electronic message and any attachments to= this message are intended for the exclusive use of the addressee(s) and may= contain proprietary, confidential or privileged information. If you are not= the intended recipient, you should not disseminate, distribute or copy this= e-mail. Please notify the sender immediately and destroy all copies of this= message and any attachments. =0A= =0A= WARNING: Computer viruses can be transmitted via email. The recipient should= check this email and any attachments for the presence of viruses. The compa= ny accepts no liability for any damage caused by any virus transmitted by th= is email. =0A= =0A= www.wipro.com From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gw1.transmode.se (gw1.transmode.se [195.58.98.146]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 4926BB6FA0 for ; Tue, 10 Jan 2012 01:59:28 +1100 (EST) In-Reply-To: <40631E9A2581F14BA60888C87A76A1FE01D360@HYD-MKD-MBX4.wipro.com> References: <40631E9A2581F14BA60888C87A76A1FE01D360@HYD-MKD-MBX4.wipro.com> Subject: RE: Mac address in the DT To: Message-ID: From: Joakim Tjernlund Date: Mon, 9 Jan 2012 15:59:24 +0100 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Cc: scottwood@freescale.com, linuxppc-dev@lists.ozlabs.org, wd@denx.de List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , wrote on 2012/01/09 15:28:54: > > > Hi Joakim, > > I have tried it but it doesn't work. > > Just now found that with single ' quotes the entire sequence it works. > >Setenv set_mac 'cp 0xffec0000 0x100000 1024;fdt addr 0xc00000 8192;fdt set /soc8272@f0000000/ethernet@24000 mac-address "[00 44 00 55 00 66]";erase 0xffec0000 0xffec4000;cp 0xc00000 0xffec0000 1024;bootm 0xfe060000 - 0xffec0000' > > > run set_mac > > For the above command I want to replace the mac address with the ethaddr> How do I do that. I tried $ethaddr but I get extra : characters. > > >Setenv set_mac 'cp 0xffec0000 0x100000 1024;fdt addr 0xc00000 8192;fdt set /soc8272@f0000000/ethernet@24000 mac-address $ethaddr;erase 0xffec0000 0xffec4000;cp 0xc00000 0xffec0000 1024;bootm 0xfe060000 - 0xffec0000' Of course you do, ethaddr has a different syntax and contains : Anyway you should not have to set mac address manually like you do, u-boot will do it for you if you have configured u-boot correctly and have a proper dtb tree. Check the u-boot code and the many dts files in linux under arch/powerpc/boot/dts From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-out.m-online.net (mail-out.m-online.net [IPv6:2001:a60:0:32:0:1:25:1]) by ozlabs.org (Postfix) with ESMTP id 8CBCAB6FC5 for ; Tue, 10 Jan 2012 09:40:45 +1100 (EST) To: smitha.vanga@wipro.com From: Wolfgang Denk Subject: Re: Mac address in the DT MIME-Version: 1.0 Content-type: text/plain; charset=UTF-8 In-reply-to: <40631E9A2581F14BA60888C87A76A1FE01D360@HYD-MKD-MBX4.wipro.com> References: <40631E9A2581F14BA60888C87A76A1FE01D360@HYD-MKD-MBX4.wipro.com> Date: Mon, 09 Jan 2012 23:40:27 +0100 Message-Id: <20120109224027.A8B591167AA4@gemini.denx.de> Cc: scottwood@freescale.com, linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Dear smitha.vanga@wipro.com, In message <40631E9A2581F14BA60888C87A76A1FE01D360@HYD-MKD-MBX4.wipro.com> you wrote: > > >Setenv set_mac 'cp 0xffec0000 0x100000 1024;fdt addr 0xc00000 8192;fdt set= > /soc8272@f0000000/ethernet@24000 mac-address "[00 44 00 55 00 66]";erase 0x= > ffec0000 0xffec4000;cp 0xc00000 0xffec0000 1024;bootm 0xfe060000 - 0xffec000= > 0' > > > run set_mac > > For the above command I want to replace the mac address with the ethaddr> How > do I do that. I tried $ethaddr but I get extra : characters. Why would you do that at all? U-Boot will run fdt_fixup_ethernet() for all (at least AFAICT) supported architectures, which will replace "mac-address" and "local-mac-address" for all "ethernet?" interfaces in the device tree for which a corresponding "ethadd" / "eth?addr" environment variable is set. No additional actions are needed. Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de "One day," said a dull voice from down below, "I'm going to be back in form again and you're going to be very sorry you said that. For a very long time. I might even go so far as to make even more Time just for you to be sorry in." - Terry Pratchett, _Small Gods_ From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from wipro-blr-out02.wipro.com (wipro-blr-out02.wipro.com [203.91.198.75]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id AD7BDB6FA4 for ; Tue, 10 Jan 2012 20:37:41 +1100 (EST) From: To: Subject: Mac address in the DT Date: Tue, 10 Jan 2012 09:37:14 +0000 Message-ID: <40631E9A2581F14BA60888C87A76A1FE01D3F2@HYD-MKD-MBX4.wipro.com> In-Reply-To: <20120109224027.A8B591167AA4@gemini.denx.de> Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Cc: scottwood@freescale.com, linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi, The fdt_fixup_ethernet() is not supported in the older version of u-boot. So= how to go about it in u-boot 1.3.0 version. Regards, Smitha Please do not print this email unless it is absolutely necessary. =0A= =0A= The information contained in this electronic message and any attachments to= this message are intended for the exclusive use of the addressee(s) and may= contain proprietary, confidential or privileged information. If you are not= the intended recipient, you should not disseminate, distribute or copy this= e-mail. Please notify the sender immediately and destroy all copies of this= message and any attachments. =0A= =0A= WARNING: Computer viruses can be transmitted via email. The recipient should= check this email and any attachments for the presence of viruses. The compa= ny accepts no liability for any damage caused by any virus transmitted by th= is email. =0A= =0A= www.wipro.com From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gw1.transmode.se (gw1.transmode.se [195.58.98.146]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id EEFABB6FB9 for ; Tue, 10 Jan 2012 20:47:49 +1100 (EST) In-Reply-To: <40631E9A2581F14BA60888C87A76A1FE01D3F2@HYD-MKD-MBX4.wipro.com> References: <20120109224027.A8B591167AA4@gemini.denx.de> <40631E9A2581F14BA60888C87A76A1FE01D3F2@HYD-MKD-MBX4.wipro.com> Subject: Re: Mac address in the DT To: Message-ID: From: Joakim Tjernlund Date: Tue, 10 Jan 2012 10:47:38 +0100 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Cc: scottwood@freescale.com, linuxppc-dev@lists.ozlabs.org, wd@denx.de List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , wrote on 2012/01/10 10:37:14: > > > Hi, > > The fdt_fixup_ethernet() is not supported in the older version of u-boot. So how to go about it in u-boot 1.3.0 version. Upgrade or find out how its done in your older version, I have no idea. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-out.m-online.net (mail-out.m-online.net [IPv6:2001:a60:0:32:0:1:25:1]) by ozlabs.org (Postfix) with ESMTP id D522CB6FD1 for ; Wed, 11 Jan 2012 08:55:17 +1100 (EST) To: smitha.vanga@wipro.com From: Wolfgang Denk Subject: Re: Mac address in the DT MIME-Version: 1.0 Content-type: text/plain; charset=UTF-8 In-reply-to: <40631E9A2581F14BA60888C87A76A1FE01D3F2@HYD-MKD-MBX4.wipro.com> References: <40631E9A2581F14BA60888C87A76A1FE01D3F2@HYD-MKD-MBX4.wipro.com> Date: Tue, 10 Jan 2012 22:55:09 +0100 Message-Id: <20120110215509.2D08D1167AA4@gemini.denx.de> Cc: scottwood@freescale.com, linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Dear smitha.vanga@wipro.com, In message <40631E9A2581F14BA60888C87A76A1FE01D3F2@HYD-MKD-MBX4.wipro.com> you wrote: > > The fdt_fixup_ethernet() is not supported in the older version of u-boot. So > how to go about it in u-boot 1.3.0 version. U-Boot v1.3.0 is more than 4 years old. Update, or restrict yourself to using 4 years old Linux kernel versions as well, like v2.6.23 or so :-( Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de Everyting looks interesting until you do it. Then you find it's just another job. - Terry Pratchett, _Moving Pictures_ From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from wipro-blr-out01.wipro.com (wipro-blr-out01.wipro.com [203.91.198.74]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 59A80B6EE8 for ; Wed, 11 Jan 2012 17:04:11 +1100 (EST) From: To: Subject: RE: Mac address in the DT Date: Wed, 11 Jan 2012 06:03:45 +0000 Message-ID: <40631E9A2581F14BA60888C87A76A1FE01D4FC@HYD-MKD-MBX4.wipro.com> In-Reply-To: <20120110215509.2D08D1167AA4@gemini.denx.de> Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Cc: scottwood@freescale.com, linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi, I am using 2.6.21 linux kernel with this bootloader. The ethernet driver in the kernel reads the mac address from the .dtb file. Regards, Smitha Please do not print this email unless it is absolutely necessary. =0A= =0A= The information contained in this electronic message and any attachments to= this message are intended for the exclusive use of the addressee(s) and may= contain proprietary, confidential or privileged information. If you are not= the intended recipient, you should not disseminate, distribute or copy this= e-mail. Please notify the sender immediately and destroy all copies of this= message and any attachments. =0A= =0A= WARNING: Computer viruses can be transmitted via email. The recipient should= check this email and any attachments for the presence of viruses. The compa= ny accepts no liability for any damage caused by any virus transmitted by th= is email. =0A= =0A= www.wipro.com From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from wipro-blr-out02.wipro.com (wipro-blr-out02.wipro.com [203.91.198.75]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 133CDB6F65 for ; Tue, 24 Jan 2012 18:35:50 +1100 (EST) From: To: Subject: NTP server sync issue Date: Tue, 24 Jan 2012 07:35:28 +0000 Message-ID: <40631E9A2581F14BA60888C87A76A1FE029B20@HYD-MKD-MBX4.wipro.com> In-Reply-To: <4F01EEFE.9040305@freescale.com> Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Cc: linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi , On my target the date time in linux is not getting updated as per The NTP server date. The update of date and sync between NTP server and NTP= client on the target happens Correctly when the NTP server is made up and then the ntp client is made up. If I make the NTP server down and then make the NTP client up , then again m= ake the NTP server up the sync between NTP server And NTP client on my target fails. The date does not get updated. Could you= please look the below logs and suggest. I see that in the not working condition the time reset gets negative value. WORKING # tail /var/log/messages Jan 23 14:10:06 (none) daemon.notice ntpd[942]: time reset +412128001.43 5663 s Jan 23 14:10:06 (none) daemon.notice ntpd[942]: kernel time sync disable d 0041 #date // cmd on linux shell Mon Jan 23 14:10:06 UTC 2012 NON WORKING # tail /var/log/messages Jan 5 11:11:06 (none) daemon.notice ntpd[950]: time reset -844571647.34 3679 s Jan 5 11:11:06 (none) daemon.notice ntpd[950]: kernel time sync disable d 0041 #date // cmd on linux shell Wed Jan 5 11:12:35 UTC 1943 Regards, Smitha Please do not print this email unless it is absolutely necessary. =0A= =0A= The information contained in this electronic message and any attachments to= this message are intended for the exclusive use of the addressee(s) and may= contain proprietary, confidential or privileged information. If you are not= the intended recipient, you should not disseminate, distribute or copy this= e-mail. Please notify the sender immediately and destroy all copies of this= message and any attachments. =0A= =0A= WARNING: Computer viruses can be transmitted via email. The recipient should= check this email and any attachments for the presence of viruses. The compa= ny accepts no liability for any damage caused by any virus transmitted by th= is email. =0A= =0A= www.wipro.com From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from wipro-blr-out01.wipro.com (wipro-blr-out01.wipro.com [203.91.198.74]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id AD6E6B7223 for ; Tue, 7 Feb 2012 01:26:05 +1100 (EST) From: To: Subject: Erase flash boot from default env Date: Mon, 6 Feb 2012 14:25:44 +0000 Message-ID: <40631E9A2581F14BA60888C87A76A1FE02B32D@HYD-MKD-MBX4.wipro.com> In-Reply-To: <20120110215509.2D08D1167AA4@gemini.denx.de> Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Cc: scottwood@freescale.com, linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi , When I run flinfo in bootloader I get some locatios indicated with RO meani= ng read only. Can I erase these locations. Actually I tried to erase and could not erase e= ven when I set protect off for this address Range in the environment parameters. I want to get the bootloader to boot with the default enironment parameters.= Insetad of the saved environment params. How to go about this. Regards, Smitha Please do not print this email unless it is absolutely necessary. =0A= =0A= The information contained in this electronic message and any attachments to= this message are intended for the exclusive use of the addressee(s) and may= contain proprietary, confidential or privileged information. If you are not= the intended recipient, you should not disseminate, distribute or copy this= e-mail. Please notify the sender immediately and destroy all copies of this= message and any attachments. =0A= =0A= WARNING: Computer viruses can be transmitted via email. The recipient should= check this email and any attachments for the presence of viruses. The compa= ny accepts no liability for any damage caused by any virus transmitted by th= is email. =0A= =0A= www.wipro.com