commit | 8974ff1a60365dedf1192632f5e0c21680d49dbc | [log] [tgz] |
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author | Haibo Chen <haibo.chen@nxp.com> | Mon Mar 22 18:55:38 2021 +0800 |
committer | Stefano Babic <sbabic@denx.de> | Thu Apr 08 23:59:50 2021 +0200 |
tree | 78697d9c59fa301bb4dc77b0e228eed1e2f9b3bf | |
parent | 1e595a81d9bc0d6fd30e3ba17e3f8a9278a381f8 [diff] |
mmc: fsl_esdhc_imx: add extra delay for IO voltage switch if necessary Some board like imx8mm-evkb, IO voltage switch from 3.3v to 1.8v need around 18ms, common code only delay 10ms, so need to delay extra 8ms. Otherwise voltage switch will timeout when wait for data0 line. This IO voltage switch time depends on board design, depend on the PMIC and capacitance. imx8mm-evkb board use PCA9450(PMIC) and 10uF capacitance. Signed-off-by: Haibo Chen <haibo.chen@nxp.com>