From: Gustave Monce <[email protected]> Lumia 950/XL, like other phones, ship with different storage chips. Some of them are not capable of stable operation at HS400. Disable it.
Signed-off-by: Gustave Monce <[email protected]> Signed-off-by: Konrad Dybcio <[email protected]> --- .../dts/qcom/msm8994-msft-lumia-octagon.dtsi | 21 +++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/msm8994-msft-lumia-octagon.dtsi b/arch/arm64/boot/dts/qcom/msm8994-msft-lumia-octagon.dtsi index bf6e63a23600..004a42261cef 100644 --- a/arch/arm64/boot/dts/qcom/msm8994-msft-lumia-octagon.dtsi +++ b/arch/arm64/boot/dts/qcom/msm8994-msft-lumia-octagon.dtsi @@ -684,6 +684,27 @@ vph_pwr_bbyp: boost-bypass { &sdhc1 { status = "okay"; + + /* + * This device is shipped with HS400 capabable eMMCs + * However various brands have been used in various product batches, + * including a Samsung eMMC (BGND3R) which features a quirk with HS400. + * Set the speed to HS200 as a safety measure. + */ + mmc-hs200-1_8v; +}; + +&sdhc2 { + status = "okay"; + + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&sdc2_clk_on &sdc2_cmd_on &sdc2_data_on>; + pinctrl-1 = <&sdc2_clk_off &sdc2_cmd_off &sdc2_data_off>; + + vmmc-supply = <&vreg_l21a_2p95>; + vqmmc-supply = <&vreg_l13a_2p95>; + + cd-gpios = <&pm8994_gpios 8 GPIO_ACTIVE_LOW>; }; &tlmm { -- 2.30.0
