Wen,
I'll push a patch for the muxing - I'd been meaning to do this and
just got behind.
I don't believe that SeaBIOS yet supports boot from SD (without a USB
translator). Sage pushed a preliminary patch supporting SD boot on
specific platforms to the SeaBIOS mailing list a while back, but I don't
believe that worked on Bay Trail, and I don't believe that any
additional work has been done on the patches since then.
The thread starts here:
http://www.coreboot.org/pipermail/seabios/2014-June/008105.html
Here's a link to the patch:
http://www.seabios.org/pipermail/seabios/attachments/20140611/32c1a351/attachment-0001.gz
Hi Julien,
Were those boards using Bay Trail and booting coreboot / SeaBIOS?
I'm assuming you just meant that SD boot works in general.
Martin
On 08/07/2014 08:16 AM, Wen Wang wrote:
Julien,
Thanks much for the information! We must have missed something. For SD
card, we have SD enabled in fsp, and the GPIO mux configured in coreboot. Is
there anything else we need to do? Did you have to do anything in seabios?
Thanks,
Wen
-----Original Message-----
From: Julien Snell [mailto:juliensn...@cc-e.co.uk]
Sent: Thursday, August 7, 2014 3:34 AM
To: Wen Wang; coreboot@coreboot.org
Subject: Re: [coreboot] Baytrail SD card interface
Wen,
SD Card , SD Card Boot work. We have designed several Boards with SD Card
Boot.
Although I would recommend USB3 Boot as it's a magnitude faster.
Regards
Julien Snell
Cocom
www.cc-e.co.uk
Cocom design and manufacture internet connected devices (IoT) Introducing
two new brands Mi-ProtoPCB, UK made lightning fast assembled PCB proto-types
and Mi-Embedded, your very own customised embedded board.
-----Original Message-----
From: coreboot [mailto:coreboot-boun...@coreboot.org] On Behalf Of Wen Wang
Sent: 06 August 2014 20:45
To: coreboot@coreboot.org
Subject: [coreboot] Baytrail SD card interface
Hello all,
Does the current baytrail fsp coreboot code support SD/uSD card interface?
Is anybody able to get it to work on Bayley Bay CRB? It does not seem to
work on our CRB. We checked the SD3_PWREN signal, it always remains high and
therefore the SD card doesn't get any power.
Thanks,
Wen
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