
7 Oct
2021
7 Oct
'21
4:13 p.m.
The SD clock disable is wrapped by MMC_SUPPORTS_TUNING. So it only works when UHS is enabled. However, in SD initialization the power cycle does not depends on UHS. But the power cycle needs disable the SD clock before power down. So this causes a problem when UHS is not enabled. Some cards can't become ready (ACMD14 timeout) due to the clock is enabled during power cycle. Signed-off-by: Ye Li ye.li@nxp.com Reviewed-by: Haibo Chen haibo.chen@nxp.com Reviewed-by: Jaehoon Chung jh80.chung@samsung.com
Applied to u-boot-imx, master, thanks !
Best regards, Stefano Babic
--
=====================================================================
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic@denx.de
=====================================================================