• Nikita Kiryanov's avatar
    arm: am437x: cm-t43: set MPU and CORE voltages on boot · 43e568c4
    Nikita Kiryanov authored
    During boot, U-Boot raises the CPU frequency but the CORE and MPU regulators
    are not updated. This is not a problem in cold boot since the default values
    that the pmic outputs are correct, but if Linux were to switch the module to a
    low power OPP, the new voltage values will be retained after a reboot and the
    module will likely hang once U-Boot raises the CPU frequency back up.
    Set both CORE and MPU regulators to to 1.1V on boot.
    Cc: Tom Rini <trini@konsulko.com>
    Cc: Albert Aribaud <albert.u.boot@aribaud.net>
    Cc: Igor Grinberg <grinberg@compulab.co.il>
    Signed-off-by: default avatarNikita Kiryanov <nikita@compulab.co.il>
    Reviewed-by: default avatarTom Rini <trini@konsulko.com>
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