eMMC issues on Allwiner A20-OLinuXino-LIME2-eMMC

[Emmanuel Vadot]

 Hi,

On Thu, 8 Nov 2018 17:39:15 +1100
Jookia <166291 at gmail.com> wrote:

> Hi there,
> 
> I've been working on getting FreeBSD to run on Olimex's LIME2 board.
> Unfortunately I'm having some trouble when booting it with the eMMC
> device tree.
> 
> The eMMC card (mmc1, 4GB) keeps giving off
> AW_MMC_INT_RESP_TIMEOUT while the SD card (mmc0, 32GB) works fine.
> 
> I've looked through the source code for the driver but it's over my
> head, so I was wondering if anyone here knows what's going on?
> 
> I tested the eMMC and it works fine in Linux and OpenBSD.
> 
> Jookia.

 Which u-boot are you using ?
 If you are using the A20-OLinuXino-Lime2-eMMC_defconfig it should work
(and have worked since I used this board at $WORK-2 for a project) but
if you are using the A20-OLinuXino-Lime2_defconfig it will not as we
lack support for mmc-pwrseq-emmc (so the eMMC is never put of reset).

-- 
Emmanuel Vadot <manu at bidouilliste.com> <manu at freebsd.org>