Bug 94263 - ppc64 sungem patch to support imacG5
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Bug#:
94263
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Product: Gentoo Linux
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Version: 2004.3
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Platform: PPC64
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OS/Version: Linux
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Status: RESOLVED
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Severity: major
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Priority: P2
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Resolution: FIXED
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Assigned To: dsd@gentoo.org
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Reported By: lu_zero@gentoo.org
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Component: Core system
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URL:
http://ozlabs.org/pipermail/linuxppc64-dev/2005-May/004135.html
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Summary: ppc64 sungem patch to support imacG5
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Keywords: InCVS
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Status Whiteboard:
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Opened: 2005-05-28 02:48 0000
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From the forum item http://forums.gentoo.org/viewtopic-t-341963.html
"We recently acquired a new Dual G5 2.3 GHz desktop system from Apple (PowerPC 7,3), and tried to install Gentoo on it using the install-ppc64-g5-minimal-2005.0.iso install. After entering the default response at the first prompt [G5], the system starts booting then produces a kernel panic of the form (I have a literal screen shot if you are interested in all the details):
=======
i2c /dev entries driver
Oops: kernel access of bad area, sig: 11 [#1]
SMP NR_CPUS=2 POWERMAC
Modules linked in:
<snip>
NIP [ ] .create_iface+0x154/0x550
LR [ ] .create_iface+0x128/0x550
Call Trace:
.create_iface
.of_device_probe
.driver_probe_device
.driver_attach
.bus_add_driver
.driver_register
.of_register_driver
.i2c_keywest_init
.init
.kernel_thread
Instruction dump:
=======
"
As an update. We have been able to compile the kernel with the patch from here:
http://ozlabs.org/pipermail/linuxppc64-dev/2005-May/004140.html
After rebuilding the iso, it allows for progress in the startup. So that patch
seems to work to fix this problem. So it should just be a matter of adding it to
the list of patches for the linux kernel.
We tried the build with a brand new ppc64 imacg5 and it booted properly.
Then we had some crazyness with the ethernet device. The system finds the
device and the driver is loaded. ifconfig knows all about it. We cannot
get the device to connect to the network. dhcp doesn't work and setting
a manual ip still doesn't function. The output from dmesg is not helpful
either. Once ifconfig shows the device as up and active, attempts to ping
anything are denied.
Is there a workaround for this issue? or is the network device we are using
too new to work with the driver from nigoro's build?
Chris,
Thank you for your report.
First, I'm sorry about almost not knowing the information on new iMacG5 at present.
Would you unplug ethernet cable and try once again, when booting?
Reference: http://perso.magic.fr/l_indien/linux-ImacG5/index.htm
In addition, would you write the information about Ethernet device ?
Information can be obtained in the following procedures.
1. find /proc/device-tree -type d -name ethernet-phy
2. move to the found directory.
3. cat compatible (example: K2-5421)
4. od -x phy-id (example: 0000000 0000 62e0)
And, I uploaded a new LiveCD image.
This CD contains kernel 2.6.12-rc5-mm2 including the patch to more ppc64.
If you have enough time, please test it.
http://dev.gentoo.org/~nigoro/ppc64/install-ppc64-newg5-minimal-2005.0-r1.iso.bz2
Thank you.
The fix seems to have address my issue with my Dual G5 2.7ghz box... I am
able to get to the shell prompt to slice and dice and install the os just fine..
Thanks for the fix.
Yuta,
Unfortunately the new build is having the same problem with the network card. We
have some information for you based on the commands you gave us though.
1. find /proc/device-tree -type d -name ethernet-phy
-> /proc/device-tree/ht@0,f2000000/pci@1/ethernet@f/ethernet-phy
2. move to the found directory.
3. cat compatible (example: K2-5421)
-> B5461
4. od -x phy-id (example: 0000000 0000 62e0)
-> 0000000 0000 60d3
0000004
Thanks for your help,
-Chris
Chris,
Thank you for your information.
It seems to your network device that the driver is not supporting.
Probably, if the code for it is added to sungem_phy.c etc, it will operate.
Would you contribute this problem to the linuxppc64-dev mailing list [1] ?
Probably information will be further needed.
I think that it will be further solved early by them if you can do a direct reply.
Thanks in advance.
[1]
https://ozlabs.org/cgi-bin/mailman/listinfo/linuxppc64-dev
i tried the 2005.0-r3 iso in my imac g5. Boots fine, but, links is not working,
and print the message that is
trying to find the libstdc++.so.6 library. And, there is no portage or stages
files in the cd...
Thanks for your infomation.
The problem of links reproduced also in my environment.
Would you try LiveCD of new revision ?
Portage and stage files are not contained in LiveCD of PPC64.
Please get them from Gentoo mirror sites.
(In reply to comment #13)
> Revision update
>
> Features
> * gentoo-sources 2.6.12 base.
> * The patch for the network device of a brand new iMacG5 is included.
> * The problem of links was fixed. (from Comment #11)
Good job!, now works perfect for me.
OK. I tried the Live CD in comment #13 on iMac G5 requested by nigoro.
The network problem seems to be fixed. Great!
kernel herds,
I want this patch (in Comment #16) to be included in gentoo-sources until this
is merged into the kernel source.
This supports the network device of a brand new iMacG5.
I think that it is a function required in order to install Gentoo on new iMacG5.
Please add it to gentoo-sources-2.6.12 or later version.
Thank you.
How come nobody has told Ben H that the patch works?
Yes, let's wait till upstream accepts this patch (odds are they will not, it
should be cleaned up more...)
Also, the Summary is not true anymore, this has nothing to do with "i2c
keywest",
right?
Now applied upstream, will include in next release
Fixed in gentoo-sources-2.6.12-r7
Fixed in genpatches-2.6.12-11
