• Pierre Ossman's avatar
    mmc: Support for high speed SD cards · 7ccd266e
    Pierre Ossman authored
    Modern SD cards support a clock speed of 50 MHz. Make sure we test for
    this capability and do the song and dance required to activate it.
    
    Activating high speed support actually modifies the TRAN_SPEED field
    of the CSD. But as the spec says that the cards must report 50 MHz,
    we might as well skip re-reading the CSD.
    Signed-off-by: default avatarPierre Ossman <drzeus@drzeus.cx>
    7ccd266e
mmc.c 36.7 KB