Re: [PATCH] PCI: Marvell: Update PCIe fixup
From: Pali Rohár <pali@kernel.org>
Date: 2021-11-09 23:43:01
Also in:
linux-mips, linux-pci, lkml
On Tuesday 02 November 2021 16:13:34 Pali Rohár wrote:
On Tuesday 02 November 2021 16:02:01 Thomas Bogendoerfer wrote:quoted
On Tue, Nov 02, 2021 at 11:00:34AM +0100, Pali Rohár wrote:quoted
quoted
quoted
But I do not have this hardware to verify it.I still have a few Cobalt systems here.Perfect! It would help if you could provide 'lspci -nn -vv' output from that system. In case you have very old version of lspci on that system you could try to run it with '-xxxx' (or '-xxx') which prints hexdump and I can parse it with local lspci.
Thomas, one more question, do you have also GT-64115 system which has PCI device id 0x4611? Based on Maciej quote, GT-64115 probably also reports itself as "Memory controller" instead of "Host Bridge". So lspci output from GT-64115 could be also interesting.
quoted
not sure, if you still needed: root@raq2:~# lspci -nn -vv 00:00.0 Host bridge [0600]: Marvell Technology Group Ltd. Device [11ab:4146] (rev 11) Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR+ INTx- Latency: 64, Cache Line Size: 32 bytes Interrupt: pin A routed to IRQ 0 Region 1: Memory at 08000000 (32-bit, non-prefetchable) [size=128M] Region 2: Memory at 1c000000 (32-bit, non-prefetchable) [size=32M] Region 3: Memory at 1f000000 (32-bit, non-prefetchable) [size=16M] Region 4: Memory at 14000000 (32-bit, non-prefetchable) [size=4K] Region 5: I/O ports at 4000000 [disabled] [size=4K] root@raq2:~# lspci -xxxx 00:00.0 Host bridge: Marvell Technology Group Ltd. Device 4146 (rev 11) 00: ab 11 46 41 06 00 80 a2 11 00 80 05 08 40 00 00^^ ^^ ^^ Here is class code So it confirms that PCI Class code is 0580 which is Memory Controller. And not Host Bridge as it should be. If I put this hexdump into dump.txt and run 'lspci -F dump.txt -nn' then I see: 00:00.0 Memory controller [0580]: Marvell Technology Group Ltd. Device [11ab:4146] (rev 11) In your output above is "Host bridge" which means that quirk was applied: 00:00.0 Host bridge [0600]: Marvell Technology Group Ltd. Device [11ab:4146] (rev 11) (I guess in 'lspci -nn -vv -b' should be Memory controller as lspci with '-b' should not see that quirk change)quoted
10: 00 00 00 00 00 00 00 08 00 00 00 1c 00 00 00 1f 20: 00 00 00 14 01 00 00 14 00 00 00 00 00 00 00 00 30: 00 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Thomas. -- Crap can work. Given enough thrust pigs will fly, but it's not necessarily a good idea. [ RFC1925, 2.3 ]
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