• Krzysztof Kozlowski's avatar
    ARM: dts: exynos: Properly select eMMC HighSpeed mode on Odroid XU · 162f2db3
    Krzysztof Kozlowski authored
    Exynos5410 supports eMMC version 4.41 so HS200 is the top mode which
    should be configured.  This is reflected in usage of
    "samsung,exynos5250-dw-mshc" compatible.  However Odroid XU DTS
    contained also property "mmc-hs400-1_8v" which is parsed by MMC core
    therefore resulting in mixed configuration.  MMC core set HS400 but
    dwmmc_exynos driver did not configure the data strobe for HS400 DDR
    Removal of HS400 properties fixes semi-random mmc errors during boot:
      mmc_host mmc0: Bus speed (slot 0) = 400000000Hz (slot req 200000000Hz, actual 200000000HZ div = 1)
      mmc0: mmc_select_hs400 failed, error -84
      mmc0: error -84 whilst initialising MMC card
    Signed-off-by: default avatarKrzysztof Kozlowski <k.kozlowski@samsung.com>
    Reviewed-by: default avatarAlim Akhtar <alim.akhtar@samsung.com>
exynos5410-odroidxu.dts 12.2 KB