Hi David
thanks. I will wait for your new files.
Hi Charles
thank you very much for your insight.
ciao
graziao
Il 04/05/2011 19.36, davidMbrooke ha scritto:
> Hi Charles,
>
> Thanks very much for your insight. In parallel I came to the conclusion
> that reverting to the (deprecated) /dev/hda-style driver would at least
> be a workaround for now, without actually understanding why...
>
> We don't even build those old-style drivers for BuC 4.x ("# CONFIG_IDE
> is not set"), but we can...
>
> Graziano: I am building a new kernel& initrd with the IDE modules right
> now. I will mail you off-list with some new files to test.
>
> dMb
>
>
> On Wed, 2011-05-04 at 09:32 -0500, Charles Steinkuehler wrote:
>> -----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
>>>>>>>
>>>>>>>
>>>>>> ------------------------------------------------------------------------------
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>> - --
>> 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. Delivers lowest initial
>> acquisition cost and overall TCO of any competing solution.
>> http://p.sf.net/sfu/whatsupgold-sd
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>
--
Graziano Brioschi
Outland s.a.s.
sede operativa:
Via A. Don Rocca, 13
20030, Senago (MI)
tel: 02 9948 6014
mobile: 328 8382622
email: graziano.brios...@outland.it
--> U4E<--
------------------------------------------------------------------------------
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acquisition cost and overall TCO of any competing solution.
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