Dear Gregory CLEMENT,
Gregory CLEMENT gregory.clement@free-electrons.com writes:
Timing issue occurs on eMMC not only when modifying the frequency but also for all the switch command(CMD6). According to the MMC spec waiting 8 clocks after a switch command would be the thing to do.
This patch allows fixing CPU hang observed when trying to changing the bus width on a eMMC on SAMA5D4.
Signed-off-by: Gregory CLEMENT gregory.clement@free-electrons.com Tested-by: Marek Vasut marex@denx.de # on DENX MA5D4EV Acked-by: Marek Vasut marex@denx.de Tested-by: Andreas Bießmann andreas.devel@googlemail.com # on atngw100 Acked-by: Andreas Bießmann andreas.devel@googlemail.com [fixed minor checkpatch warning] Signed-off-by: Andreas Bießmann andreas.devel@googlemail.com
drivers/mmc/gen_atmel_mci.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-)
applied to u-boot-atmel/master, thanks!
Best regards, Andreas Bießmann