Hi Stephen,
On May 23, 2014, at 9:59 PM, Stephen Warren wrote:
On 05/20/2014 10:57 AM, Stephen Warren wrote:
From: Bryan Wu cooloney@gmail.com
mmc dev ${devnum} will return 0 as success even if there is no card inserted. Booting script like tegra-common-post.h will call mmc dev ${devnum} to check the mmc device status, it always return 0 even if mmc_init() fails.
Check mmc_init() return value let mmc dev command return failure when mmc_init() fails.
For the email archive record, it looks like this same logic has already been implemented as part of:
1fd93c6e7d8a eMMC: cmd_mmc.c adds the 'rpmb' sub-command for the 'mmc' command
... which was just recently committed into u-boot-mmc/master.
(See the code in init_mmc_device)
Similar functionality is in master already. Dropping the patch.
-- Pantelis