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authorHaibo Chen <haibo.chen@nxp.com>2020-11-03 12:18:35 +0300
committerStefano Babic <sbabic@denx.de>2020-12-06 17:31:37 +0300
commit5d772196d93509306f9a4333e181a64f3e7e4249 (patch)
treeb61037e092ab54e2a990e3d69512985cc182febb /board/toradex
parentea51af2fdd87bb5da024507c9233a038e84e8737 (diff)
downloadu-boot-5d772196d93509306f9a4333e181a64f3e7e4249.tar.xz
mmc: fsl_esdhc_imx: optimize the timing setting
For imx usdhc/esdhc, once set the DDR_EN, enable the DDR mode, the card clock will be divied by 2 automatically by the host. So need to first config the DDR_EN correctly, then update the card clock. This will make sure the actual card clock is as our expected. IC also suggest config the DDR_EN firstly, then config the clock divider. For HS400/HS400ES mode, need to config the strobe dll, this need to based on the correct target clock rate, so need to do this after clock rate is update. Signed-off-by: Haibo Chen <haibo.chen@nxp.com> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
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