AMD E8860 on PowerPC with u-boot (T2080)

[Christian König]

Am 21.02.2018 um 12:01 schrieb Bas Vermeulen:
> On Wed, Feb 21, 2018 at 11:43 AM, Christian König 
> <ckoenig.leichtzumerken at gmail.com 
> <mailto:ckoenig.leichtzumerken at gmail.com>> wrote:
>
>     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?
>
>
> Sure:
>
> 00000000-ffffffff : System RAM

Mhm, ok all system memory is below 4GB. So at least in theory it should 
work even without coherent DMA.

No idea what goes wrong here,
Christian.

> c20000000-c2fffffff : /pcie at ffe250000
>   c20000000-c2fffffff : PCI Bus 0001:01
>     c21000000-c210fffff : 0001:01:00.0
>     c21100000-c211fffff : 0001:01:00.0
> c40000000-c7fffffff : /pcie at ffe270000
>   c40000000-c7fffffff : PCI Bus 0002:01
>     c41000000-c4103ffff : 0002:01:00.0
>     c41040000-c4105ffff : 0002:01:00.0
>     c41060000-c41063fff : 0002:01:00.1
>     c60000000-c6fffffff : 0002:01:00.0
> fe8000000-fefffffff : fe8000000.nor
> ffe008000-ffe008fff : mpc85xx_mc_err
> ffe100100-ffe10017f : dma
> ffe100180-ffe1001ff : dma
> ffe100200-ffe10027f : dma
> ffe100280-ffe1002ff : dma
> ffe100400-ffe10047f : dma
> ffe100480-ffe1004ff : dma
> ffe100500-ffe10057f : dma
> ffe100580-ffe1005ff : dma
> ffe101100-ffe10117f : dma
> ffe101180-ffe1011ff : dma
> ffe101200-ffe10127f : dma
> ffe101280-ffe1012ff : dma
> ffe101400-ffe10147f : dma
> ffe101480-ffe1014ff : dma
> ffe101500-ffe10157f : dma
> ffe101580-ffe1015ff : dma
> ffe102100-ffe10217f : dma
> ffe102180-ffe1021ff : dma
> ffe102200-ffe10227f : dma
> ffe102280-ffe1022ff : dma
> ffe102400-ffe10247f : dma
> ffe102480-ffe1024ff : dma
> ffe102500-ffe10257f : dma
> ffe102580-ffe1025ff : dma
> ffe110000-ffe110fff : /soc at ffe000000/spi at 110000
> ffe114000-ffe114fff : mmc0
> ffe11c500-ffe11c507 : serial
> ffe11c600-ffe11c607 : serial
> ffe11d500-ffe11d507 : serial
> ffe11d600-ffe11d607 : serial
> ffe210000-ffe210fff : /soc at ffe000000/usb at 210000
>   ffe210000-ffe210fff : /soc at ffe000000/usb at 210000
> ffe211000-ffe211fff : /soc at ffe000000/usb at 211000
>   ffe211000-ffe211fff : /soc at ffe000000/usb at 211000
> ffe240e00-ffe24ffff : mpc85xx_pci_err
> ffe250e00-ffe25ffff : mpc85xx_pci_err
> ffe270e00-ffe27ffff : mpc85xx_pci_err
> ffe400000-ffe4fffff : fman
>   ffe400000-ffe45ffff : fman-muram
>   ffe482000-ffe482fff : fman-port-hc
>   ffe483000-ffe483fff : fman-port-hc
>   ffe484000-ffe484fff : fman-port-hc
>   ffe485000-ffe485fff : fman-port-hc
>   ffe486000-ffe486fff : fman-port-hc
>   ffe487000-ffe487fff : fman-port-hc
>   ffe488000-ffe488fff : fman-port-hc
>   ffe489000-ffe489fff : fman-port-hc
>   ffe48a000-ffe48afff : fman-port-hc
>   ffe48b000-ffe48bfff : fman-port-hc
>   ffe48c000-ffe48cfff : fman-port-hc
>   ffe48d000-ffe48dfff : fman-port-hc
>   ffe490000-ffe490fff : fman-port-hc
>   ffe491000-ffe491fff : fman-port-hc
>   ffe4a8000-ffe4a8fff : fman-port-hc
>   ffe4a9000-ffe4a9fff : fman-port-hc
>   ffe4aa000-ffe4aafff : fman-port-hc
>   ffe4ab000-ffe4abfff : fman-port-hc
>   ffe4ac000-ffe4acfff : fman-port-hc
>   ffe4ad000-ffe4adfff : fman-port-hc
>   ffe4b0000-ffe4b0fff : fman-port-hc
>   ffe4b1000-ffe4b1fff : fman-port-hc
>   ffe4dc000-ffe4dcfff : fman-vsp
>   ffe4e0000-ffe4e0fff : mac
>   ffe4e2000-ffe4e2fff : mac
>   ffe4e4000-ffe4e4fff : mac
>   ffe4e6000-ffe4e6fff : mac
>   ffe4f0000-ffe4f0fff : mac
>   ffe4f2000-ffe4f2fff : mac
>   ffe4fe000-ffe4fefff : fman-rtc
>
> Bas Vermeulen

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