diff options
| author | Krzysztof Kozlowski <krzk@kernel.org> | 2019-03-09 16:00:38 +0100 |
|---|---|---|
| committer | Krzysztof Kozlowski <krzk@kernel.org> | 2019-03-19 22:06:37 +0100 |
| commit | 3a6a6d0a8b660c9a075c981e40405cc67b145972 (patch) | |
| tree | c683994088b570af7c30bf02d8becf94cc166868 /arch/arm/boot/dts/exynos5420-arndale-octa.dts | |
| parent | 30082e7b3513ff6e8a6d5e97d72af7074bb767ee (diff) | |
ARM: dts: exynos: Add support for UHS-I SD cards on Arndale Octa
The Exynos5420's Mobile Storage Host supports SD cards in UHS-I standard
(SD specification v3.0), with 1.8 V signaling in SD UHS DDR50. Adjust
the regulator and add necessary capability properties. Change the SDR
and DDR timings to match values in Insignal v3.4 Android kernel.
Tested with SD UHS-I card in SD UHS DDR50 mode.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Diffstat (limited to 'arch/arm/boot/dts/exynos5420-arndale-octa.dts')
| -rw-r--r-- | arch/arm/boot/dts/exynos5420-arndale-octa.dts | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/arm/boot/dts/exynos5420-arndale-octa.dts b/arch/arm/boot/dts/exynos5420-arndale-octa.dts index b12286d545b6..de0a6840dfbc 100644 --- a/arch/arm/boot/dts/exynos5420-arndale-octa.dts +++ b/arch/arm/boot/dts/exynos5420-arndale-octa.dts @@ -441,7 +441,7 @@ ldo13_reg: LDO13 { regulator-name = "PVDD_APIO_MMCOFF_2V8"; - regulator-min-microvolt = <2800000>; + regulator-min-microvolt = <1800000>; regulator-max-microvolt = <2800000>; }; @@ -701,14 +701,17 @@ status = "okay"; card-detect-delay = <200>; samsung,dw-mshc-ciu-div = <3>; - samsung,dw-mshc-sdr-timing = <2 3>; - samsung,dw-mshc-ddr-timing = <1 2>; + samsung,dw-mshc-sdr-timing = <0 4>; + samsung,dw-mshc-ddr-timing = <0 2>; pinctrl-names = "default"; pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_bus1 &sd2_bus4>; vmmc-supply = <&ldo19_reg>; vqmmc-supply = <&ldo13_reg>; bus-width = <4>; cap-sd-highspeed; + sd-uhs-sdr50; + sd-uhs-sdr104; + sd-uhs-ddr50; }; &pinctrl_0 { |