[RESEND PATCH v1 0/1] mmc: fix response timeout after switch command

Currently I am implementing SPL for frienlyARM's NanoPC-T2 board (SoC S5P4418). Loading of U-Boot from SD-card fails if CONFIG_SPL_MMC_TINY=y. I.e. mmc_set_blocklen() inside mmc_bread() fails (Response Timeout), caused by the previous call of __mmc_switch() in drivers/mmc/mmc.c: Here the 'current state' of the card status keeps 'data' for several 100ms after issuing the switch command. Because of this state the next command issued fails (in this case CMD16 = SET_BLOCKLEN). Patch: Wait for 'current state' = 'tran' in __mmc_switch().

Stefan Bosch (1): mmc: fix response timeout after switch command

drivers/mmc/mmc.c | 3 ++- include/mmc.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-)