[PATCH 11/18] arm64: dts: qcom: msm8994-octagon: Add uSD card and disable HS400 on eMMC

[Konrad Dybcio]

From: Gustave Monce <gustave.monce@xxxxxxxxxxx>

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 <gustave.monce@xxxxxxxxxxx>
Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxx>
---
 .../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