eMMC broken on SK-AM62

[Mattijs Korpershoek]

Hi Maxime, Nishanth,

On mer., nov. 08, 2023 at 16:05, Maxime Ripard <mripard at redhat.com> wrote:

> Hi Nishanth,
>
> I've been trying for the last few days to get an SK-AM62 to boot from
> the eMMC user data area.
>
> I finally got the jumper configuration to make the CPU boot from there
> thanks to Mattijs, but it looks like the 2024.01-rc2 release doesn't
> support booting from there:
>
> U-Boot SPL 2024.01-rc2 (Nov 08 2023 - 14:11:12 +0100)
> SYSFW ABI: 3.1 (firmware rev 0x0009 '9.1.5--v09.01.05 (Kool Koala)')
> SPL initial stack usage: 13368 bytes
> Trying to boot from MMC1
> MMC Device 0 not found
> spl: could not find mmc device 0. error: -19
> SPL: failed to boot from all boot devices
> ### ERROR ### Please RESET the board ###
>
> It looks like you tried to fix it with 0f1c1e8b368b ("arm: mach-k3:
> am625: Add support for UDA FS"), but it looks like it's not enough.

I confirm I reproduce the issue on AM62x SK EVM.

Beagle play seems to boot fine:

U-Boot SPL 2024.01-rc2 (Nov 09 2023 - 11:24:04 +0100)
SYSFW ABI: 3.1 (firmware rev 0x0009 '9.1.1--v09.01.01 (Kool Koala)')
SPL initial stack usage: 13400 bytes
Trying to boot from MMC1
Warning: Detected image signing certificate on GP device. Skipping certificate to prevent boot failure. This will fail if the image was also encrypted
Warning: Detected image signing certificate on GP device. Skipping certificate to prevent boot failure. This will fail if the image was also encrypted
Warning: Detected image signing certificate on GP device. Skipping certificate to prevent boot failure. This will fail if the image was also encrypted
Warning: Detected image signing certificate on GP device. Skipping certificate to prevent boot failure. This will fail if the image was also encrypted
Warning: Detected image signing certificate on GP device. Skipping certificate to prevent boot failure. This will fail if the image was also encrypted
Starting ATF on ARM64 core...

NOTICE:  BL31: v2.8(release):08.06.00.007
NOTICE:  BL31: Built : 11:17:33, Nov  9 2023

U-Boot SPL 2024.01-rc2 (Nov 09 2023 - 11:24:30 +0100)
SYSFW ABI: 3.1 (firmware rev 0x0009 '9.1.1--v09.01.01 (Kool Koala)')
SPL initial stack usage: 1888 bytes
Trying to boot from MMC1
Warning: Detected image signing certificate on GP device. Skipping certificate to prevent boot failure. This will fail if the image was also encrypted
Warning: Detected image signing certificate on GP device. Skipping certificate to prevent boot failure. This will fail if the image was also encrypted


U-Boot 2024.01-rc2 (Nov 09 2023 - 11:24:30 +0100)

SoC:   AM62X SR1.0 GP
Model: BeagleBoard.org BeaglePlay
DRAM:  2 GiB
Core:  98 devices, 27 uclasses, devicetree: separate
MMC:   mmc at fa10000: 0, mmc at fa00000: 1, mmc at fa20000: 2
Loading Environment from nowhere... OK
In:    serial at 2800000
Out:   serial at 2800000
Err:   serial at 2800000
Net:   No ethernet found.

Press SPACE to abort autoboot in 2 seconds
=>

Note that Beagle Play does not boot tiboot3 from UDA (User Data Area)
but from mmc0boot0 so the boot flow is not exactly the same.

>
> Thanks!
> Maxime