On 12/27/13 16:23, Alex G. wrote:
On 12/27/2013 04:43 AM, Oliver Schinagl wrote:
That said, how is A13, A20 support for coreboot?
Non-existent. On A10, we're still figuring out how to read from MMC
(partially working with code stolen from uboot), and how to init DRAM
(hangs with code stolen from uboot).
Well our u-boot patches are all GPL so feel free to use them, don't need
to steal ;)
Anyway, as I said, if you need help or thoughts, feel free to poke me or
our Mailing list, we are surely interested to also have boot support
from coreboot.
There currently is a MMC driver being written and submitted (already) to
the lkaml etc that should help you out a lot. MMC support is maybe
'ugly' in u-boot but should be done reasonable (we rely on it a lot as
its the main way to boot with our u-boot). SPI i'm working on right now,
gotta find a way though to hook up an SPI flash module. Nand is very
very much WiP.
As for initing of DRAM, that's a horrible affair and i've been putting
off refactoring that, afraid things may break if things are even in the
wrong order. The code is a GPL donation from allwinner and based of
their GPL boot0/boot1 code.
We don't have an infrastructure
for block devices, let alone MMC. Our ARM support is still wearing diapers.
Understood,
besides the 'because you can' why would you want to replace u-boot with
coreboot here? (I do think it's great to have multiple ways, just
inquiring).
Oliver
Alex
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