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/rk3399_rockchip-uboot/drivers/mmc/
H A Dmmc.c5545757f7791e4b522a775b3f495feb508f659a1 Mon May 15 06:07:15 UTC 2017 Ziyuan Xu <xzy.xu@rock-chips.com> mmc: add DDR52 support for eMMC card

4.41+ eMMC card devices can run at 52MHz on DDR 8-bit mode, it can
improve write/read performance. Host driver can set MMC_MODE_DDR_52Mhz
to enable this feature.

Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com>