For some eMMC, after switch to HS400ES mode, it need to config the strobe
dll target dealy even if the clock is 50MHZ or 25MHz, otherwise will meet
CMD index/crc error when send CMD13 to check the switch status. Take
imx8MM-EVK board as example, without this patch, it will meet:
[ 2.473915] IRQ status 0x000a8001
[ 2.473930] the mmc send status get -84
[ 2.473934] mmc2: mmc_select_hs400es failed, error -84
[ 2.473938] mmc2: error -84 whilst initialising MMC card
And we also meet some customer require to let eMMC work at 80MHz HS400ES
mode, so here remove the 100MHz limitation for Strobe DLL target delay
setting.
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
82d011db6a