AMD E8860 on PowerPC with u-boot (T2080)

Wed Feb 21 10:43:18 UTC 2018

Am 21.02.2018 um 11:38 schrieb Bas Vermeulen:
> On Wed, Feb 21, 2018 at 10:31 AM, Michel Dänzer <michel at daenzer.net 
> <mailto:michel at daenzer.net>> wrote:
>
>     On 2018-02-21 10:18 AM, Bas Vermeulen wrote:
>     > On Wed, Feb 21, 2018 at 10:06 AM, Michel Dänzer
>     <michel at daenzer.net <mailto:michel at daenzer.net>
>     > <mailto:michel at daenzer.net <mailto:michel at daenzer.net>>> wrote:
>     >
>     >     > My question is, what do I need to do to correctly
>     initialize the E8860
>     >     > board on my powerpc machine?
>     >
>     >     Start by sharing the dmesg output, and maybe also the kernel
>     build
>     >     configuration file.
>     >
>     >
>     > Both are attached (gzipped because of size).
>
>     It might be related to this:
>
>     [   10.482772] radeon: No coherent DMA available.
>
>
> I updated my device-tree to add incoming pcie ranges, and that removes 
> this error:
>
> [   10.161044] [drm] radeon kernel modesetting enabled.
> [   10.165168] [drm] initializing kernel modesetting (VERDE 
> 0x1002:0x6822 0x1002:0x031E).
> [   10.171799] radeon: No coherent DMA available.

Well that reads like the problem is still there and yes when you don't 
have coherent DMA possibility that would explain why it doesn't work.

Can you provide us with a dump of /proc/iomem as well?

Thanks,
Christian.

> [   10.171831] [drm] register mmio base: 0x41000000
> [   10.171832] [drm] register mmio size: 262144
> [   10.411061] ATOM BIOS: E268
> [   10.412569] [drm] GPU not posted. posting now...
> [   10.441831] radeon 0002:01:00.0: VRAM: 2048M 0x0000000000000000 - 
> 0x000000007FFFFFFF (2048M used)
> [   10.449408] radeon 0002:01:00.0: GTT: 1024M 0x0000000080000000 - 
> 0x00000000BFFFFFFF
> [   10.455771] [drm] Detected VRAM RAM=2048M, BAR=256M
> [   10.459349] [drm] RAM width 128bits DDR
> [   10.462455] [TTM] Zone  kernel: Available graphics memory: 1978634 kiB
> [   10.467688] [TTM] Initializing pool allocator
> [   10.470755] [TTM] Initializing DMA pool allocator
> [   10.474194] [drm] radeon: 2048M of VRAM memory ready
> [   10.477859] [drm] radeon: 1024M of GTT memory ready.
> [   10.481549] [drm] Loading verde Microcode
> [   10.500383] [drm] Internal thermal controller with fan control
> [   10.505048] [drm] probing gen 2 caps for device 1957:830 = 73f443/e
> [   10.522317] [drm] radeon: dpm initialized
> [   10.539675] [drm] GART: num cpu pages 262144, num gpu pages 262144
> [   10.546129] [drm] probing gen 2 caps for device 1957:830 = 73f443/e
> [   10.551121] [drm] PCIE gen 3 link speeds already enabled
> [   10.581276] [drm] PCIE GART of 1024M enabled (table at 
> 0x0000000000277000).
> [   10.587142] radeon 0002:01:00.0: WB enabled
> [   10.590019] radeon 0002:01:00.0: fence driver on ring 0 use gpu 
> addr 0x0000000080000c00 and cpu addr 0xc0000000ed15bc00
> [   10.599515] radeon 0002:01:00.0: fence driver on ring 1 use gpu 
> addr 0x0000000080000c04 and cpu addr 0xc0000000ed15bc04
> [   10.609008] radeon 0002:01:00.0: fence driver on ring 2 use gpu 
> addr 0x0000000080000c08 and cpu addr 0xc0000000ed15bc08
> [   10.618499] radeon 0002:01:00.0: fence driver on ring 3 use gpu 
> addr 0x0000000080000c0c and cpu addr 0xc0000000ed15bc0c
> [   10.627992] radeon 0002:01:00.0: fence driver on ring 4 use gpu 
> addr 0x0000000080000c10 and cpu addr 0xc0000000ed15bc10
> [   10.639273] radeon 0002:01:00.0: fence driver on ring 5 use gpu 
> addr 0x0000000000075a18 and cpu addr 0x8000080088db5a18
> [   10.648762] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
> [   10.654078] [drm] Driver supports precise vblank timestamp query.
> [   10.658873] radeon 0002:01:00.0: radeon: MSI limited to 32-bit
> [   10.663455] radeon 0002:01:00.0: radeon: using MSI.
> [   10.667069] [drm] radeon: irq initialized.
> [   11.353989] [drm:.r600_ring_test [radeon]] *ERROR* radeon: ring 0 
> test failed (scratch(0x850C)=0xCAFEDEAD)
> [   11.362354] radeon 0002:01:00.0: disabling GPU acceleration
> [   11.543395] [drm] Radeon Display Connectors
> [   11.546272] [drm] Connector 0:
> [   11.548027] [drm]   DP-1
> [   11.549248] [drm]   HPD1
> [   11.550471] [drm]   DDC: 0x6530 0x6530 0x6534 0x6534 0x6538 0x6538 
> 0x653c 0x653c
> [   11.556569] [drm]   Encoders:
> [   11.558224] [drm]     DFP1: INTERNAL_UNIPHY1
> [   11.561192] [drm] Connector 1:
> [   11.562941] [drm]   DP-2
> [   11.564162] [drm]   HPD4
> [   11.565384] [drm]   DDC: 0x6560 0x6560 0x6564 0x6564 0x6568 0x6568 
> 0x656c 0x656c
> [   11.571480] [drm]   Encoders:
> [   11.573136] [drm]     DFP2: INTERNAL_UNIPHY1
> [   11.576103] [drm] Connector 2:
> [   11.577846] [drm]   DP-3
> [   11.579074] [drm]   HPD5
> [   11.580297] [drm]   DDC: 0x6540 0x6540 0x6544 0x6544 0x6548 0x6548 
> 0x654c 0x654c
> [   11.586393] [drm]   Encoders:
> [   11.588057] [drm]     DFP3: INTERNAL_UNIPHY2
> [   11.591023] [drm] Connector 3:
> [   11.592767] [drm]   DP-4
> [   11.593987] [drm]   HPD6
> [   11.595216] [drm]   DDC: 0x6570 0x6570 0x6574 0x6574 0x6578 0x6578 
> 0x657c 0x657c
> [   11.601313] [drm]   Encoders:
> [   11.602978] [drm]     DFP4: INTERNAL_UNIPHY2
> [   11.692728] radeon 0002:01:00.0: No connectors reported connected 
> with modes
> [   11.698480] [drm] Cannot find any crtc or sizes - going 1024x768
> [   11.708402] [drm] fb mappable at 0xC60478000
> [   11.711369] [drm] vram apper at 0xC60000000
> [   11.714242] [drm] size 3145728
> [   11.715993] [drm] fb depth is 24
> [   11.717910] [drm]    pitch is 4096
> [   11.720091] radeon 0002:01:00.0: fb0: radeondrmfb frame buffer device
> [   11.725236] radeon 0002:01:00.0: registered panic notifier
> [   11.742619] [drm] Initialized radeon 2.42.0 20080528 for 
> 0002:01:00.0 on minor 0
> [   40.806632] random: nonblocking pool is initialized
>
> Bas Vermeulen
>
>
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