[REGRESSION] mmc: "unable to select a mode: -5" on i.MX8M/AM62 platforms

Fabio Estevam festevam at gmail.com
Thu Jan 8 00:52:39 CET 2026


On Wed, Jan 7, 2026 at 8:45 PM Vitor Soares <ivitro at gmail.com> wrote:

> Verdin iMX8M Mini (SPL failure):
>
> U-Boot SPL 2026.01-0.0.0-devel+git.53c0d5b38795 (Jan 06 2026 - 20:44:27 +0000)
> WDT:   Started watchdog at 30280000 with servicing every 1000ms (60s timeout)
> SEC0:  RNG instantiated
> Trying to boot from MMC1
> unable to select a mode: -5
> spl: mmc init failed with error: -524
> Error: -524
> SPL: Unsupported Boot Device!
> SPL: failed to boot from all boot devices
> ### ERROR ### Please RESET the board ###

Please run 'git bisect' to identify the guilty commit.


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