Re: [SeaBIOS] Failure to detect high-capacity SD card

[Kevin O'Connor]

On Thu, Feb 08, 2018 at 10:12:40AM -0500, Chris wrote:
> On Wed, Feb 7, 2018 at 3:14 AM, Paul Menzel  wrote:
> > Please tell us what SeaBIOS version you use, and attach the debug logs from
> > a working and non-working setup.
>
> I switched to the SeaBIOS git HEAD code just in case that made a
> difference (it did not).
>
> The machine has mmc0 as the internal 64GB SSD, mmc1 is the internal
> card reader, then an external USB card reader (64GB) is attached as
> well.

This looks to be very similar to the issue Matt raised back in
October.  It seems the card needs to run at 1.8 volt (instead of 3.3
volt), but it seems to shutdown before telling seabios that.

Can you apply the patch at:

https://mail.coreboot.org/pipermail/seabios/2017-October/011892.html

set the seabios debug level to 3, and send the log again?

-Kevin

Failure to detect high-capacity SD card

[Chris]

On Fri, Feb 23, 2018 at 12:24 AM, Kevin O'Connor  wrote:
> This looks to be very similar to the issue Matt raised back in
> October.  It seems the card needs to run at 1.8 volt (instead of 3.3
> volt), but it seems to shutdown before telling seabios that.
>
> Can you apply the patch at:
>
> https://mail.coreboot.org/pipermail/seabios/2017-October/011892.html
>
> set the seabios debug level to 3, and send the log again?

Yes, I believe we're using the same hardware.

With the patch it still fails.

During boot devices were:
* mmcblk0 internal 64GB SSD (detected).
* mmcblk1 internal card reader with 64GB bootable card in it (fails to
be detected).
* External USB reader that has 2 slots, one is empty, the other has a
1GB microsd (detected).

Log:
https://pastebin.com/L0dhPN8G

Looks like the same problem where the card won't respond and times out.

I still need to see if I can get some debugging information from a
Linux kernel because everything works fine there. I'm not sure how to
go about turning it on.

Chris