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| author | Krzysztof Kozlowski <k.kozlowski@samsung.com> | 2016-07-15 10:12:49 +0200 |
|---|---|---|
| committer | Krzysztof Kozlowski <k.kozlowski@samsung.com> | 2016-08-10 11:53:37 +0200 |
| commit | 162f2db394a0efb270db3d93475ce466794a8eef (patch) | |
| tree | 426aa124c35b825182fdbc8fc71b42261128205a /arch | |
| parent | Linux 4.8-rc1 (diff) | |
| download | linux-162f2db394a0efb270db3d93475ce466794a8eef.tar.xz linux-162f2db394a0efb270db3d93475ce466794a8eef.zip | |
ARM: dts: exynos: Properly select eMMC HighSpeed mode on Odroid XU
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
mode.
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: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/boot/dts/exynos5410-odroidxu.dts | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/arm/boot/dts/exynos5410-odroidxu.dts b/arch/arm/boot/dts/exynos5410-odroidxu.dts index d9499310a301..f6d135245a4b 100644 --- a/arch/arm/boot/dts/exynos5410-odroidxu.dts +++ b/arch/arm/boot/dts/exynos5410-odroidxu.dts @@ -447,14 +447,11 @@ samsung,dw-mshc-ciu-div = <3>; samsung,dw-mshc-sdr-timing = <0 4>; samsung,dw-mshc-ddr-timing = <0 2>; - samsung,dw-mshc-hs400-timing = <0 2>; - samsung,read-strobe-delay = <90>; pinctrl-names = "default"; pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus1 &sd0_bus4 &sd0_bus8 &sd0_cd>; bus-width = <8>; cap-mmc-highspeed; mmc-hs200-1_8v; - mmc-hs400-1_8v; vmmc-supply = <&ldo20_reg>; vqmmc-supply = <&ldo11_reg>; }; |