[Bug 89871] nouveau diver in kernel 3.5.7 - 4.0.0-rc6 on PPC broken

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89871

            Bug ID: 89871
           Summary: nouveau diver in kernel 3.5.7 - 4.0.0-rc6 on PPC
                    broken
           Product: DRI
           Version: XOrg git
          Hardware: PowerPC
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/other
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: marvin at mydatex.cz

Created attachment 114825
  --> https://bugs.freedesktop.org/attachment.cgi?id=114825&action=edit
dmesg output 3.19.3

I have PowerMac G5 machine with dual PPC. On Debian wheezy Xserver works.
I upgrade to jessie with kernel 3.16 and Xserver stop working. I tested these
kernels:

vmlinux-3.4.106
vmlinux-3.5.7
vmlinux-3.7.9
vmlinux-3.8.13
vmlinux-3.14.37
vmlinux-3.17.8
vmlinux-3.18.10
vmlinux-3.19.3
vmlinux-4.0.0-rc6

It looks like that between 3.5.7 and 3.8.13 something change and DRM part of
nouveau diver and driver stop working:
I tested above kernels and problem is the same this dmesg output is from 
3.19.3
[drm] Initialized drm 1.1.0 20060810
[   10.548060] checking generic (98020000 10e000) vs hw (98000000 8000000)
[   10.548066] fb: switching to nouveaufb from OFfb NVDA,Displ
[   10.555299] Console: switching to colour dummy device 80x25
[   10.557295] nouveau  [  DEVICE][0000:0a:00.0] BOOT0  : 0x043200a4
[   10.557310] nouveau  [  DEVICE][0000:0a:00.0] Chipset: NV43 (NV43)
[   10.557316] nouveau  [  DEVICE][0000:0a:00.0] Family : NV40
[   10.557567] nouveau ![   VBIOS][0000:0a:00.0] unable to locate usable image
[   10.557575] nouveau E[  DEVICE][0000:0a:00.0] failed to create 0x10000001,
-22
[   10.557584] nouveau E[     DRM] failed to create 0x00000080, -22
[   10.558138] nouveau: probe of 0000:0a:00.0 failed with error -22

With older kernel < 3.7.9 nouveau kernel part works but newer Xorg from jessie
doesn't detect videocard.

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