-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Reviewing the details for the Soekris 4501, it uses the Elan 520 CPU, which does not have a built-in PCI HDD controller. While I was unable to find specifics on the Soekris site, the CF card is almost certainly mapped as a standard ISA programmed I/O IDE controller (no DMA). This will *NOT* show up on the PCI bus at all.
I suspect you are encountering one of the following issues: * I do not believe the ISA IDE controller has been ported to the unified SCSI driver layer in the kernel. Have you tried accessing /dev/hda instead of /dev/sda? * It is possible the CF card is mapped to a non-standard memory location in the Elan memory map. If this is the case, you will need to either compile a custom driver or pass an address parameter to the IDE module when you load it. I was unable to find enough documentation on-line at the Soekris site to determine if this is a problem. On 5/3/2011 2:51 AM, Graziano Brioschi wrote: > hi David > > I cannot see messages related to "mounting" /dev/sda1.... > I already post a query on soekris-tech mailing list about the IDE/ATA > driver; I'm waiting for suggestion from that list. > > Manual modprobe'ing "pata_amd" produce no result... > > Here the output of "cat /proc/pci" on a net4501 running BuC 3.1; also > on this 2.4 kernel there is not a separate entry for the disk controller. > > fw# cat pci > PCI devices found: > Bus 0, device 0, function 0: > Class 0600: PCI device 1022:3000 (rev 0). > Bus 0, device 17, function 0: > Class 0200: PCI device 10ec:8139 (rev 16). > IRQ 10. > Master Capable. Latency=63. Min Gnt=32.Max Lat=64. > I/O at 0xe000 [0xe0ff]. > Non-prefetchable 32 bit memory at 0xa0000000 [0xa00000ff]. > Bus 0, device 18, function 0: > Class 0200: PCI device 100b:0020 (rev 0). > IRQ 11. > Master Capable. Latency=63. Min Gnt=11.Max Lat=52. > I/O at 0xe100 [0xe1ff]. > Non-prefetchable 32 bit memory at 0xa0001000 [0xa0001fff]. > Bus 0, device 19, function 0: > Class 0200: PCI device 100b:0020 (rev 0). > IRQ 5. > Master Capable. Latency=63. Min Gnt=11.Max Lat=52. > I/O at 0xe200 [0xe2ff]. > Non-prefetchable 32 bit memory at 0xa0002000 [0xa0002fff]. > Bus 0, device 20, function 0: > Class 0200: PCI device 100b:0020 (rev 0). > IRQ 9. > Master Capable. Latency=63. Min Gnt=11.Max Lat=52. > I/O at 0xe300 [0xe3ff]. > Non-prefetchable 32 bit memory at 0xa0003000 [0xa0003fff]. > fw# > > > Thanks > Graziano > > Il 01/05/2011 23.10, davidMbrooke ha scritto: >> Hi Graziano, >> >> That's great news! At least we're making progress... >> >> For others reading this thread I should explain that I built Graziano a >> ELAN-specific kernel and initrd (with "CONFIG_X86_ELAN=y" instead of >> "CONFIG_M486=y") and that is what is now booting on the net4501. Looks >> like we're going to need an "elan" kernel variant like we have a "geode" >> kernel variant. >> >> I also get the "/init: eval: line 1: KCMD_libata.dma=0: not found" error >> when I specify that kernel command-line argument on a system that boots >> successfully so I think that is nothing to worry about. >> >> What you *should* be seeing are lines like: >> LINUXRC: Root: /dev/ram0 >> LINUXRC: Looking for leaf.cfg... >> LINUXRC: Mounting /dev/sda1 on /var/lib/lrpkg/mnt as vfat >> LINUXRC: Sourcing leaf.cfg from /dev/sda1 >> LINUXRC: Generating default dirs... >> >> I agree that all the evidence points to your IDE/ATA driver not loading. >> >> The "100b:0020" PCI devices are the National Semiconductor DP8381x >> Ethernet chips whereas the "1022:3000" device seems to be SC520 "ELAN >> Microcontroller PCI Host Bridge" (from http://www.pcidatabase.com/). >> >> lspci is not reporting the disk controller separately, which seems >> strange to me. On other machines I always see a separate PCI device for >> the disk controller. >> >> I suspect the solution will end up being to enable a further .config >> entry for the kernel, but the key is to know which one. The kernel >> options have changed a lot over the past few years. >> >> You might want to try manually modprobe'ing the pata_amd module, just in >> case that has any effect. >> >> Might also be worth a post to the soekris-tech mailing list to see if >> anyone there can advise on the 2.6.35.11 .config entries for a net4501. >> >> dMb >> >> >> On Sun, 2011-05-01 at 18:30 +0200, Graziano Brioschi wrote: >>> Thank you very much David! >>> >>> I have downloaded the elan kernel and the initrd.lrp from your site and >>> using these two new packages my system boot! >>> However the system does not complete the startup sequence, giving me he >>> following messages on my serial console: >>> >>> ........ >>> [ 4.077117] Write protecting the kernel text: 1636k >>> [ 4.078275] Write protecting the kernel read-only data: 744k >>> [ 4.078275] Write protecting the kernel read-only data: 744k >>> LINUXRC: Bering - Initrd - 4.0.0 Rev 12 uClibc 0.9.30.3 >>> LINUXRC: Parsing kernel command line... >>> /init: eval: line 1: KCMD_libata.dma=0: not found >>> LINUXRC: Loading modules... >>> LINUXRC: Root: /dev/ram0 >>> LINUXRC: Looking for leaf.cfg... >>> LINUXRC: Generating default dirs... >>> LINUXRC: Generating /tmp& /var/log partitions ... >>> LINUXRC: PKGPATH is empty or unset. Can not install packages. >>> LINUXRC: LRP= is empty or unset. Can not install packages. >>> LINUXRC: chown and chmod /dev... >>> LINUXRC: Loaded Packages >>> LINUXRC: Creating new rootfs... >>> LINUXRC: Switch_root into new rootfs... >>> can't run '/etc/init.d/rcS': No such file or directory >>> >>> Please press Enter to activate this console. >>> ....... >>> >>> I think that this probles is related to the IDE driver kernel that is >>> not present... >>> Here the content of "/linuxrc.err" >>> >>> / # cat linuxrc.err >>> Next iteration: Thu Jan 10 02:40:07 UTC 1980 >>> Probing platform:rtc_cmos ... not found. >>> Probing platform:pcspkr ... not found. >>> Probing platform:serial8250 ... not found. >>> Probing pci:v00001022d00003000sv00000000sd00000000bc06sc00i00 ... not found. >>> Probing pci:v0000100Bd00000020sv0000100Bsd00000020bc02sc00i00 ... not found. >>> Probing pci:v0000100Bd00000020sv0000100Bsd00000020bc02sc00i00 ... not found. >>> Probing pci:v0000100Bd00000020sv0000100Bsd00000020bc02sc00i00 ... not found. >>> Successfully probed 0 modules for 7 modaliases, currently loaded: >>> Not tainted >>> vfat 6542 0 - Live 0xb483b000 >>> fat 34532 1 vfat, Live 0xb4825000 >>> isofs 17079 0 - Live 0xb4809000 >>> / # >>> >>> and my "lsmod" output: >>> >>> / # lsmod >>> Not tainted >>> vfat 6542 0 - Live 0xb483b000 >>> fat 34532 1 vfat, Live 0xb4825000 >>> isofs 17079 0 - Live 0xb4809000 >>> / # >>> >>> and, finally, my "lspci" output >>> >>> / # lspci >>> 00:00.0 Class 0600: 1022:3000 >>> 00:12.0 Class 0200: 100b:0020 >>> 00:13.0 Class 0200: 100b:0020 >>> 00:14.0 Class 0200: 100b:0020 >>> / # lspci -m >>> 00:00.0 "Class 0600" "1022" "3000" "0000" "0000" >>> 00:12.0 "Class 0200" "100b" "0020" "100b" "0020" >>> 00:13.0 "Class 0200" "100b" "0020" "100b" "0020" >>> 00:14.0 "Class 0200" "100b" "0020" "100b" "0020" >>> / # >>> >>> I try to load the "ata_generic" modules using modprobe (no problem >>> loading it) and make /dev/sda and /dev/sda[1-4] devices using mknod, but >>> I cannot mount my CF.... >>> >>> I found on a tecnical list on soekris site >>> (http://old.nabble.com/Linux-IDE-driver-for-CF-card-td19766587.html) >>> that speaks about a "generic/default IDE driver": >>> ... >>> The CF card has started working after activating "generic/default *IDE* >>> chipset support (*IDE_GENERIC*)" support in the kernel. I guess this >>> driver doesn't support UDMA, but the "National SCx200 chipset support" >>> or "AMD CS5535 chipset support" drivers didn't work. >>> .... >>> >>> and an other document related to debian on net4501 >>> (http://www.feep.org/weblogs/josh/archives/69-Debian-on-a-Soekris-net4501.html) >>> speaks about an "ide_generic" module that I cannot find on BuC 4.0: >>> >>> .... >>> Rebuild initramfs with ide_generic support.| >>> echo "ide_generic">> /etc/initramfs-tools/modules >>> update-initramfs -t -u >>> .... >>> | >>> >>> In few days I will install a linux build system and I will try to follow >>> the instructions in the wikies pages related to development. >>> >>> What do you think about this? >>> Thanks a lot for your time >>> cheers >>> graziano >>> >>> >>> Il 29/04/2011 12.35, davidMbrooke ha scritto: >>>> Hi Graziano, >>>> >>>> Ah, OK. I did not spot that some of your output was from the net4801... >>>> >>>> There is a kernel .config option "CONFIG_X86_ELAN" which is not set for >>>> our current 4.x builds. It is not completely clear to me what effect >>>> setting this will have, but it is worth a try. If this is indeed the >>>> problem we would add another kernel variant "elan" like we have already >>>> for i486, i686 and geode. >>>> >>>> In order to build a custom kernel you can follow the instructions at >>>> http://sourceforge.net/apps/mediawiki/leaf/index.php?title=Bering-uClibc_4.x_-_Developer_Guide_-_Preparing_the_Build_Environment >>>> and on subsequent pages. It is not particularly difficult if you already >>>> have a suitable Linux build host available. Once the buildenv is ready >>>> run "./buildtool.pl build linux" to build the standard kernels. >>>> >>>> Making the changes necessary for a custom kernel is not difficult but it >>>> is currently not documented in the Wiki. Once you get as far as building >>>> the standard kernel contact me directly for further advice. In the >>>> meantime I will also try to build a specific "elan" kernel for you to >>>> try. >>>> >>>> Regards, >>>> dMb >>>> >>>> On Fri, 2011-04-29 at 11:35 +0200, Graziano Brioschi wrote: >>>>> hi David >>>>> >>>>> I think there is a misunderstanding about the problem. >>>>> I have two machine: >>>>> - the first is a Soekris net4501 and on this machine the kernel does not >>>>> boot; I can see the syslinux output about loading of /syslinux/linux and >>>>> /initrd.lrp, but nothing more. The system hangs. On this system BuC3.1 >>>>> runs correctly. >>>>> - the second is a Soekris net4801 that I boot using the same compact >>>>> flash generated for the first net4501 to verify that the compact flash >>>>> has not some kind of problem; BuC4.0 runs correctly without problems, >>>>> but I have seen the "libata.dma=0 not found" error. >>>>> >>>>> I hope the test environment is more clear now. >>>>> I think that there is a kind of incompatibility between the i486 kernel >>>>> and the AMD ELAN SC520 processor that is installed on net4501. >>>>> Is there a simple way to rebuild a kernel for the AMD ELAN CPU? Is a >>>>> difficult operation? Can I try to built it? >>>>> >>>>> thanks a lot >>>>> graziano >>>>> >>>>> >>>> >>>> ------------------------------------------------------------------------------ >>>> WhatsUp Gold - Download Free Network Management Software >>>> The most intuitive, comprehensive, and cost-effective network >>>> management toolset available today. Delivers lowest initial >>>> acquisition cost and overall TCO of any competing solution. >>>> http://p.sf.net/sfu/whatsupgold-sd >>>> ------------------------------------------------------------------------ >>>> leaf-user mailing list: leaf-user@lists.sourceforge.net >>>> https://lists.sourceforge.net/lists/listinfo/leaf-user >>>> Support Request -- http://leaf-project.org/ >> >> >> ------------------------------------------------------------------------------ >> WhatsUp Gold - Download Free Network Management Software >> The most intuitive, comprehensive, and cost-effective network >> management toolset available today. Delivers lowest initial >> acquisition cost and overall TCO of any competing solution. >> http://p.sf.net/sfu/whatsupgold-sd >> ------------------------------------------------------------------------ >> leaf-user mailing list: leaf-user@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/leaf-user >> Support Request -- http://leaf-project.org/ > - -- Charles Steinkuehler char...@steinkuehler.net -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk3BY3YACgkQLywbqEHdNFyvLwCfY1Q2oaT4czg7XgRpgob/93Uy fqIAoKE4fopPo9VbWxvTvdUbI+Hhi3RI =7/cQ -----END PGP SIGNATURE----- ------------------------------------------------------------------------------ WhatsUp Gold - Download Free Network Management Software The most intuitive, comprehensive, and cost-effective network management toolset available today. 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