compact flash driver
On Mon, 2006-05-29 at 12:45 +0800, KokHow Teh wrote: Dear sir Do you have compact flash card driver supported in u-boot.I need it.If ^^ You have posted your question to the wrong list. you don't have it .Can you tell me how the CF card initialize if you know how to initialize it? Ask more specific question as to what hardware platform you are using. Specifically, which CF controller Hardware platform is dm320. Specifically is CF 3.0 memory mode.
fs_enet segfaults when adding network interface to bridge
On Tue, 30 May 2006 16:54:42 -0500 Andy Fleming afleming at freescale.com wrote: On May 30, 2006, at 08:39, Laurent Pinchart wrote: Hi everybody, I ran into a segfault in the fs_enet driver when adding the network interface to an ethernet bridge. This only happens when the interface is down. - Kernel version - Linux tbox-cp11 2.6.17-rc3-g7f02f290-dirty #549 Tue May 30 13:25:37 CEST 2006 ppc unknown (from main linux-2.6 git repository) - End of kernel version - - Oops report - Oops: kernel access of bad area, sig: 11 [#1] NIP: C0109884 LR: C010D420 CTR: REGS: c027d7f0 TRAP: 0300 Tainted: P (2.6.17-rc3- g7f02f290-dirty) MSR: 9032 EE,ME,IR,DR CR: 24000222 XER: DAR: 0140, DSISR: 2000 TASK = c0851090[42] 'brctl' THREAD: c027c000 GPR00: C010D414 C027D8A0 C0851090 C027D8D0 F0A0 EFFF GPR08: C026E380 C021 C023 C021 1001D150 00FFE000 0001 GPR16: 007FFF00 7FDD0AC0 10072C94 7FDD0AD8 10072CA4 GPR24: 1A48 C027D8D0 C027D8D0 C08A1A60 C027DC50 C08A1800 NIP [C0109884] phy_ethtool_gset+0x0/0x48 LR [C010D420] fs_get_settings+0x34/0x48 Call Trace: [C027D8A0] [C010D414] fs_get_settings+0x28/0x48 (unreliable) [C027D8C0] [C013DDC0] dev_ethtool+0x9bc/0x13c8 [C027DC40] [C018CBC0] port_cost+0x58/0x108 [C027DCB0] [C018D3E8] br_add_if+0x174/0x2f4 [C027DCE0] [C018D9AC] add_del_if+0x94/0x98 [C027DD00] [C018DD68] br_dev_ioctl+0x70/0xae4 [C027DE00] [C013B42C] dev_ifsioc+0x17c/0x404 [C027DE20] [C013BA4C] dev_ioctl+0x398/0x4e8 [C027DEB0] [C012EEFC] sock_ioctl+0x154/0x220 [C027DEE0] [C0067164] do_ioctl+0x88/0x9c [C027DEF0] [C0067230] vfs_ioctl+0xb8/0x3f0 [C027DF10] [C00675A8] sys_ioctl+0x40/0x74 [C027DF40] [C00040E0] ret_from_syscall+0x0/0x38 Instruction dump: 7c0803a6 4e800020 2f80 409eff78 4bb8 8804000e 2b81 40bdff70 3860ffea 4bd4 61200040 4b84 81230140 91240004 80030144 90040008 - End of oops report - - Source lines - [C0109884] phy_ethtool_gset+0x0/0x48 (drivers/net/phy/phy.c:290) [C010D414] fs_get_settings+0x28/0x48 (drivers/net/fs_enet/fs_enet-main.c:885) [C013DDC0] dev_ethtool+0x9bc/0x13c8 (net/core/ethtool.c:122) [C018CBC0] port_cost+0x58/0x108 (net/bridge/br_if.c:54) - End of source lines - phy_ethtool_gset segfaults when trying to access phydev-supported because phydev is NULL. As I'm not familiar with the fs_enet driver, I'm looking for advices regarding what to fix and how to fix it. IIRC, fs_enet got bound to phydev only being -up. So in down state, phydev may be either null, or last assigned (need to have a look into source to tell for certain). So what is the proper behavior from your point of view? I have no idea :-) What I know is that the driver should not segfault when asked to report the port speed. Either we should return an error or have the phy device bound to fs_enet at all time. It might also be a bridge issue, maybe the bridge code should turn the interface up before reading its speed. How do other ethernet drivers proceed ? Well, gianfar only invokes phy_ethtool_gset() after checking to see that phydev is not NULL. fs_enet should do this as well. It may be preferable to move that check into phy_ethtool_gset(). Certainly a workable solution, though I'm inclined to feel that the PHY layer should be able to assume that a given PHY exists. The sort of problem also exists if you try to use ethtool to find the ring sizes before the device has been opened. Anyway, the easy fix is for fs_enet to check for NULL before calling phy_ethtool_gset(). Andy, Thanks for pointing it out, I was just going to seek into gianfar behavior. That issue seems not the only problem - there are plenty of cases I saw, where if initially PHY got failed to be bound, fs_enet seems to be really unhappy with phydev == NULL and direct dereferences of the latter. I'll try to address that stuff as time permits... -Vitaly
AW: MPC8270 on Microsys PM827 Kernel 2.6 Oops: kernel access of bad area, sig: 11 [#1]
Thanks for answer me. I want to install Xenomai on this mpc8270. Therefor I need 2.6.14 ,because I need the adeos patch. Thanks for helping me Freddy -Urspr?ngliche Nachricht- Von: wd at denx.de [mailto:wd at denx.de] Gesendet: Dienstag, 30. Mai 2006 22:44 An: Behre, Frederik - LT Cc: linuxppc-embedded at ozlabs.org Betreff: Re: MPC8270 on Microsys PM827 Kernel 2.6 Oops: kernel access of bad area, sig: 11 [#1] In message CC692F5386B0AA47A62B7484A7CA2B6D02B52CB0 at frmx1.litef.de you wrote: I compile my kernel with pm82x_deconfig and PCI disabled. ... MPC8260 Reset Status: External Soft, External Hard Why do you use pm82x_deconfig with a MPC8260 processor? You should use pm826_deconfig instead. Best regards, Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de That's the thing about people who think they hate computers. What they really hate is lousy programmers. - Larry Niven and Jerry Pournelle in Oath of Fealty
Fwd: execve of /sbin/init fails
Whoops.. forgot to replyall. -- Forwarded message -- From: Steve Iribarne (GMail) [EMAIL PROTECTED] Date: May 31, 2006 6:30 AM Subject: Re: execve of /sbin/init fails To: Anantharaman Chetan-W16155 Chetan.S.Anantharaman at motorola.com On 5/30/06, Anantharaman Chetan-W16155 Chetan.S.Anantharaman at motorola.com wrote: Thanks for your reply. Yes, the file /sbin/init is in the ramdisk file system with execute permissions on it. I am running Busybox (how can I check the version?), I think you can check the version when you do make menuconfig. I think the version info is in there somewhere. Also it may be in the README. but my /sbin/init is not Busybox's init. Right.. so if you are not using Busybox's init, make sure you told Busybox this. When you do make menuconfig in Busybox, I think it is under the General tab, there is a check for using Busybox's init or not. I think in 1.00-rc3 they turned that on by default. They may have always turned it on, I can't remember. One thing I'd like to mention is, I have used the same ramdisk filesystem and the same version of Linux 2.4 kernel and U-Boot bootloader and have been able to successfully execute the /sbin/init. This board has a Xilinx Virtex 2 Pro FPGA with a PPC405. On my new board, with a Xilinx Virtex 4 FX100 FPGA, with the kernel running on a PPC405 and the same filesystem, the execve of /sbin/init hangs. By hangs, I mean there is no output on the console after the below output and it does not return (which indicates that it has not encountered an error of some sort, since execve returns on error only). So, I am not sure where it is stuck and is there any way to tell where it's stuck at? Hope this above info and below screen capture provide a bit more background to the issue. Below is a capture of the screen output: Linux NET4.0 for Linux 2.4 Based upon Swansea University Computer Society NET3.039 OCP uart ver 1.6.2 init complete LSP Revision 42 ikconfig 0.5 with /proc/ikconfig Starting kswapd Disabling the Out Of Memory Killer Journalled Block Device driver loaded devfs: v1.12c (20020818) Richard Gooch (rgooch at atnf.csiro.au) devfs: boot_options: 0x1 pty: 256 Unix98 ptys configured Serial driver version 5.05c (2001-07-08) with no serial options enabled ttyS00 at 0xfdfff003 (irq = 22) is a 16550A xgpio #0 at 0x5000 mapped to 0xC500 RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize loop: loaded (max 8 devices) Tracer: Initialization complete RAMDISK: Compressed image found at block 0 Freeing initrd memory: 5104k freed EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended VFS: Mounted root (ext2 filesystem). Mounted devfs on /dev Freeing unused kernel memory: 40k init -Original Message- From: Jeff.Fellin at rflelect.com [mailto:Jeff.Fellin at rflelect.com] Sent: Tuesday, May 30, 2006 3:55 PM To: Anantharaman Chetan-W16155 Cc: linuxppc-embedded at ozlabs.org; linuxppc-embedded-bounces+jeff.fellin=rflelect.com at ozlabs.org Subject: Re: execve of /sbin/init fails Anantharaman Chetan-W16155 Chetan.S.Anantharaman at motorola.com To: linuxppc-embedded at ozlabs.org Sent by: cc: linuxppc-embedded-bounces+jeff.fellin=rflelect.com Subject: execve of /sbin/init fails @ozlabs.org 05/30/2006 15:59 Hi, I am trying to bring up a custom board with a PPC405 processor running Linux 2.4.20 (MontaVista Release) and am having problems with the call to execve(/sbin/init, argv_init, envp_init) not returning in the file main.c. The processor just hangs and there is no output on the terminal. I have tried to see if I can run bin/sh and even this execve call does not return. Some things about the board are, the networking option has been disabled in the Linux .config file. I am running U-Boot 1.1.1 as the bootloader and am downloading the uImage (compressed kernel) and the initrd.boot (filesystem) into RAM and accessing the filesystem in RAM. Chetan, I would check the contents of the initrd filesystem you created to verify the files are in the image. If they are monitor the console output to verfiy the ramdisk filesystem is found and installed into ram. Jeff Fellin Any help as to what could be causing this to happen or how to debug this issue would be appreciated. Also, I've tried to capture the return value of the execve call but since the call does not return, this has not helped any. Thanks, Chetan Anantharaman ___ Linuxppc-embedded mailing list Linuxppc-embedded at ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
Linux 2.4 Kernel on Xilinx Virtex4 FX100's PPC
Has anyone successfully ported a Linux 2.4 Kernel on a Xilinx Virtex-4 FX series FPGA's, PPC405 processor? More specifically, the FX100 FPGA? Thanks, Chetan -- next part -- An HTML attachment was scrubbed... URL: http://ozlabs.org/pipermail/linuxppc-embedded/attachments/20060531/9dc601f7/attachment.htm
Linux 2.4 Kernel on Xilinx Virtex4 FX100's PPC
On 5/31/06, Anantharaman Chetan-W16155 Chetan.S.Anantharaman at motorola.com wrote: Has anyone successfully ported a Linux 2.4 Kernel on a Xilinx Virtex-4 FX series FPGA's, PPC405 processor? Linux on the V4-FX is well supported. Xilinx has an app node describing how to modify the linuxppc-2.4 tree to work on the V4-FX. You can find out how to get the tree here: http://www.penguinppc.org/kernel/ I've got both 2.4 2.6 happily running on my ML403 board here. Cheers, g. -- Grant Likely, B.Sc. P.Eng. Secret Lab Technologies Ltd. grant.likely at secretlab.ca (403) 399-0195
Linux 2.4 Kernel on Xilinx Virtex4 FX100's PPC
Was the port done on a FX100 FPGA? Also, what PVR number does the PPC405 indicate? Thanks, Chetan -Original Message- From: glikely at gmail.com [mailto:[EMAIL PROTECTED] On Behalf Of Grant Likely Sent: Wednesday, May 31, 2006 2:35 PM To: Anantharaman Chetan-W16155 Cc: linuxppc-embedded at ozlabs.org Subject: Re: Linux 2.4 Kernel on Xilinx Virtex4 FX100's PPC On 5/31/06, Anantharaman Chetan-W16155 Chetan.S.Anantharaman at motorola.com wrote: Has anyone successfully ported a Linux 2.4 Kernel on a Xilinx Virtex-4 FX series FPGA's, PPC405 processor? Linux on the V4-FX is well supported. Xilinx has an app node describing how to modify the linuxppc-2.4 tree to work on the V4-FX. You can find out how to get the tree here: http://www.penguinppc.org/kernel/ I've got both 2.4 2.6 happily running on my ML403 board here. Cheers, g. -- Grant Likely, B.Sc. P.Eng. Secret Lab Technologies Ltd. grant.likely at secretlab.ca (403) 399-0195
Help with MPC5200 + Bestcomm + Local Plus Bus
Hi I have a custom board which is essentially an icecube with an FPGA on the local bus. I have a driver which pulls data from the FPGA in response to interrupts using memcpy_fromio(). I would like to reduce the CPU usage. Has anyone used bestcomm to move data from LPB to memory? Is there an example anywhere? From the app note AN2604 it looks like writing a bestcomm task is difficult at best. Perhaps it is possible to re-use the ethernet rx task for this purpose? I'm using mainline 2.6.16.18 with Sylvain's patches for ethernet/bestcomm/ide. (BTW, will that code make it into the mainline any time soon?) Thanks in advance for any advice -roger __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
Linux 2.4 Kernel on Xilinx Virtex4 FX100's PPC
On 5/31/06, Anantharaman Chetan-W16155 Chetan.S.Anantharaman at motorola.com wrote: Was the port done on a FX100 FPGA? No; but AFAIK, the ppc hardcore is identical for all FX parts. The FX100 shoudn't be a problem. Also, what PVR number does the PPC405 indicate? Core#0rd pvr pvr: 0x20011430 536941616
Setting ID cache enable in the same mtspr instruction
I think we need to hold off on this particular patch for a few days. I took a look at the manual section you're referencing here, and sure enough, it says that you shouldn't set both bits in the same mtspr instruction. The manual says this in more than one place, in fact. However, that seemed a little bit odd to me, so I talked with a few of the hardware designers for the 745x family. They assure me that the manual statement is false. The normal code that sets ICE/ICFI/ DCE/DCFI all on one mtspr should be fully functional on this processor family. I'm still working on confirming this and getting some history on *why* the manual says that, but for now I'd say it's a pretty good bet that the manual is in error. I will let you know if I find out this is not the case. You are correct, though, in that an isync is needed prior to the write of HID0[ICE]. It's probably missing because it's not listed in the synchronization table in chapter 2 of the manual. For what it's worth, as soon as I can confirm this, I will make sure the publications team here at Freescale is made aware of the error so it can be corrected in the next printing of the manual. I will also have the synchronization table updated as it also has incorrect information. Thanks, B
Linux 2.4 Kernel on Xilinx Virtex4 FX100's PPC
Grant, Can you please provide a link or perhaps point me to the app node that Xilinx has to modify linuxppc-2.4 tree for V4-FX. Thanks, Chetan -Original Message- From: glikely at gmail.com [mailto:[EMAIL PROTECTED] On Behalf Of Grant Likely Sent: Wednesday, May 31, 2006 2:35 PM To: Anantharaman Chetan-W16155 Cc: linuxppc-embedded at ozlabs.org Subject: Re: Linux 2.4 Kernel on Xilinx Virtex4 FX100's PPC On 5/31/06, Anantharaman Chetan-W16155 Chetan.S.Anantharaman at motorola.com wrote: Has anyone successfully ported a Linux 2.4 Kernel on a Xilinx Virtex-4 FX series FPGA's, PPC405 processor? Linux on the V4-FX is well supported. Xilinx has an app node describing how to modify the linuxppc-2.4 tree to work on the V4-FX. You can find out how to get the tree here: http://www.penguinppc.org/kernel/ I've got both 2.4 2.6 happily running on my ML403 board here. Cheers, g. -- Grant Likely, B.Sc. P.Eng. Secret Lab Technologies Ltd. grant.likely at secretlab.ca (403) 399-0195
howto allocate memory using scatter/gather
Hi, How do allocate the memory using scatter/gather method ? Can I allocate memory of size of 50 KBytes using scatter/gather list method and then memory map that area to user space ? Please give me the way. Regards, Munees. DISCLAIMER The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only. It shall not attach any liability on the originator or HCL or its affiliates. Any views or opinions presented in this email are solely those of the author and may not necessarily reflect the opinions of HCL or its affiliates. Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of this message without the prior written consent of the author of this e-mail is strictly prohibited. If you have received this email in error please delete it and notify the sender immediately. Before opening any mail and attachments please check them for viruses and defect.
