Hi there!
I try to use the latest Linux-2.6.24-rc2-ge6a5c27f from paulus.git
for my mpc8540ads compatible board.
$ dmesg contains some nasty messages, which look like something is wrong.
PCI: Probing PCI hardware
PCI: Cannot allocate resource region 0 of device 0000:00:12.0
PCI: Cannot allocate resource region 1 of device 0000:00:12.0
PCI: Cannot allocate resource region 2 of device 0000:00:12.0
PCI: Cannot allocate resource region 3 of device 0000:00:12.0
PCI: Cannot allocate resource region 4 of device 0000:00:12.0
PCI: Cannot allocate resource region 0 of device 0000:00:14.0
PCI: Cannot allocate resource region 2 of device 0000:00:14.0
However, the PCI devices just work fine - machine boots and:
$ lspci -vv
00:12.0 Mass storage controller: Promise Technology, Inc. 20269 (rev 02)
(prog-if 85)
Subsystem: Promise Technology, Inc. Ultra133TX2
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB-
Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=slow >TAbort-
<TAbort- <MAbort- >SERR- <-
Latency: 128 (1000ns min, 4500ns max), Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 18
Region 0: I/O ports at 1000 [size=8]
Region 1: I/O ports at 1008 [size=4]
Region 2: I/O ports at 1010 [size=8]
Region 3: I/O ports at 100c [size=4]
Region 4: I/O ports at 1020 [size=16]
Region 5: Memory at 80000000 (32-bit, non-prefetchable) [size=16K]
Expansion ROM at 000dc000 [disabled] [size=16K]
Capabilities: [60] Power Management version 1
Flags: PMEClk- DSI+ D1+ D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: pata_pdc2027x
00:14.0 Mass storage controller: Promise Technology, Inc. PDC40775 (SATA 300
TX2plus) (rev 02)
Subsystem: Promise Technology, Inc. PDC40775 (SATA 300 TX2plus)
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB-
Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR--
Latency: 128 (1000ns min, 4500ns max), Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 19
Region 0: I/O ports at 1080 [size=128]
Region 2: I/O ports at 1400 [size=256]
Region 3: Memory at 80004000 (32-bit, non-prefetchable) [size=4K]
Region 4: Memory at 80020000 (32-bit, non-prefetchable) [size=128K]
Expansion ROM at 00080000 [disabled] [size=32K]
Capabilities: [60] Power Management version 2
Flags: PMEClk- DSI+ D1+ D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: sata_promise
Hmm...
I suspect a wrong kernel config or problems with the device tree
(I'm using an unchanged arch/powerpc/boot/dts/mpc8540ads.dts).
My .config is based on the mpc8540_ads_defconfig was attached:
http://ozlabs.org/pipermail/linuxppc-embedded/attachments/20071114/2567627a/attachment-0001.txt
Any ideas?
Thank you,
--
Clemens Koller
__________________________________
R&D Imaging Devices
Anagramm GmbH
Rupert-Mayer-Straße 45/1
Linhof Werksgelände
D-81379 München
Tel.089-741518-50
Fax 089-741518-19
http://www.anagramm-technology.com
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