eMMC broken on SK-AM62

[Maxime Ripard]

Hi Nishanth,

On Thu, Nov 09, 2023 at 06:23:03AM -0600, Nishanth Menon wrote:
> On 11:29-20231109, Mattijs Korpershoek wrote:
> > 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
> 
> There is nothing complex here - sorry for the late response, Sync DT
> with v6.7-rc1 should take care of this:
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/arch/arm64/boot/dts/ti?id=c412c2f26eed08b1836ccf79f5547b67c1b55d5d
> Vs:
> https://github.com/u-boot/u-boot/blob/master/arch/arm/dts/k3-am625-sk-u-boot.dtsi#L93
> (notice no sdhci0 with bootph properties)

I backported that linux patch onto 2023.10 and 2024.01-rc2, both work
like a charm.

Thanks!
Maxime
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