From 09179fb6aff47bf61db621dde06b51361a8a8f6b Mon Sep 17 00:00:00 2001
From: Gustave Monce <gustave.monce@outlook.com>
Date: Sun, 31 Jan 2021 02:38:42 +0100
Subject: arm64: dts: qcom: msm8994-octagon: Add uSD card and disable HS400 on
 eMMC

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@outlook.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20210131013853.55810-12-konrad.dybcio@somainline.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---
 .../boot/dts/qcom/msm8994-msft-lumia-octagon.dtsi   | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

(limited to 'arch')

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 0b8b9e32322a..730bd473be6b 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 @@
 
 &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 {
-- 
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