[PATCH V2] arm64: dts: qcom: sc7180: Add nodes for eMMC and SD card

[Veerabhadrarao Badiganti <vbadigan@codeaurora.org>]

Add sdhc instances for supporting eMMC and SD-card on sc7180.
The regulators should be in HPM state for proper functionality of
eMMC and SD-card. Updating corresponding regulators accordingly.

Signed-off-by: Veerabhadrarao Badiganti <vbadigan@codeaurora.org>
---

This depends on the patch series (dt support for sc7180):
https://lkml.org/lkml/2019/11/8/149
Also depends on documentation commit 2078158 (Present on mmc-next)

Changes since V1:
	- Updated the regulator min, max voltages as per
	  eMMC/SD-card voltage requirements
	- Enabled IOMMU for eMMC and SD-card.
	- Added pull and drive strength to SD-card cd-gpio.
	- Incorporated review comments by Matthias Kaehlcke.
---
 arch/arm64/boot/dts/qcom/sc7180-idp.dts |  47 +++++++---
 arch/arm64/boot/dts/qcom/sc7180.dtsi    | 148 ++++++++++++++++++++++++++++++++
 2 files changed, 183 insertions(+), 12 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc7180-idp.dts b/arch/arm64/boot/dts/qcom/sc7180-idp.dts
index 189254f..b6d4dc1 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-idp.dts
+++ b/arch/arm64/boot/dts/qcom/sc7180-idp.dts
@@ -7,6 +7,7 @@
 
 /dts-v1/;
 
+#include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
 #include "sc7180.dtsi"
 #include "pm6150.dtsi"
@@ -101,9 +102,9 @@
 		};
 
 		vreg_l12a_1p8: ldo12 {
-			regulator-min-microvolt = <1696000>;
-			regulator-max-microvolt = <1952000>;
-			regulator-initial-mode = <RPMH_REGULATOR_MODE_LPM>;
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
 		};
 
 		vreg_l13a_1p8: ldo13 {
@@ -143,9 +144,9 @@
 		};
 
 		vreg_l19a_2p9: ldo19 {
-			regulator-min-microvolt = <2696000>;
-			regulator-max-microvolt = <3304000>;
-			regulator-initial-mode = <RPMH_REGULATOR_MODE_LPM>;
+			regulator-min-microvolt = <2960000>;
+			regulator-max-microvolt = <2960000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
 		};
 	};
 
@@ -189,9 +190,9 @@
 		};
 
 		vreg_l6c_2p9: ldo6 {
-			regulator-min-microvolt = <2696000>;
-			regulator-max-microvolt = <3304000>;
-			regulator-initial-mode = <RPMH_REGULATOR_MODE_LPM>;
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <2950000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
 		};
 
 		vreg_l7c_3p0: ldo7 {
@@ -207,9 +208,9 @@
 		};
 
 		vreg_l9c_2p9: ldo9 {
-			regulator-min-microvolt = <2952000>;
-			regulator-max-microvolt = <3304000>;
-			regulator-initial-mode = <RPMH_REGULATOR_MODE_LPM>;
+			regulator-min-microvolt = <2960000>;
+			regulator-max-microvolt = <2960000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
 		};
 
 		vreg_l10c_3p3: ldo10 {
@@ -400,3 +401,25 @@
 			bias-pull-up;
 		};
 };
+
+&sdhc_1 {
+	status = "ok";
+
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&sdc1_on>;
+	pinctrl-1 = <&sdc1_off>;
+	vmmc-supply = <&vreg_l19a_2p9>;
+	vqmmc-supply = <&vreg_l12a_1p8>;
+};
+
+&sdhc_2 {
+	status = "ok";
+
+	pinctrl-names = "default","sleep";
+	pinctrl-0 = <&sdc2_on>;
+	pinctrl-1 = <&sdc2_off>;
+	vmmc-supply  = <&vreg_l9c_2p9>;
+	vqmmc-supply = <&vreg_l6c_2p9>;
+
+	cd-gpios = <&tlmm 69 GPIO_ACTIVE_LOW>;
+};
diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
index 666e9b9..16de9b8 100644
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -182,6 +182,32 @@
 			#power-domain-cells = <1>;
 		};
 
+		sdhc_1: sdhci@7c4000 {
+			compatible = "qcom,sc7180-sdhci", "qcom,sdhci-msm-v5";
+			reg = <0 0x7c4000 0 0x1000>;
+			reg-names = "hc_mem";
+
+			interrupts = <GIC_SPI 641 IRQ_TYPE_LEVEL_HIGH>,
+					<GIC_SPI 644 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "hc_irq", "pwr_irq";
+
+			clocks = <&gcc GCC_SDCC1_APPS_CLK>,
+					<&gcc GCC_SDCC1_AHB_CLK>;
+			clock-names = "core", "iface";
+
+			iommus = <&apps_smmu 0x60 0x0>;
+
+			bus-width = <8>;
+			non-removable;
+
+			mmc-ddr-1_8v;
+			mmc-hs200-1_8v;
+			mmc-hs400-1_8v;
+			mmc-hs400-enhanced-strobe;
+
+			status = "disabled";
+		};
+
 		qupv3_id_0: geniqup@8c0000 {
 			compatible = "qcom,geni-se-qup";
 			reg = <0 0x008c0000 0 0x6000>;
@@ -897,6 +923,128 @@
 					function = "qup15";
 				};
 			};
+
+			sdc1_on: sdc1-on {
+				clk {
+					pins = "sdc1_clk";
+					bias-disable;
+					drive-strength = <16>;
+				};
+
+				cmd {
+					pins = "sdc1_cmd";
+					bias-pull-up;
+					drive-strength = <10>;
+				};
+
+				data {
+					pins = "sdc1_data";
+					bias-pull-up;
+					drive-strength = <10>;
+				};
+
+				rclk {
+					pins = "sdc1_rclk";
+					bias-pull-down;
+				};
+			};
+
+			sdc1_off: sdc1-off {
+				clk {
+					pins = "sdc1_clk";
+					bias-disable;
+					drive-strength = <2>;
+				};
+
+				cmd {
+					pins = "sdc1_cmd";
+					bias-pull-up;
+					drive-strength = <2>;
+				};
+
+				data {
+					pins = "sdc1_data";
+					bias-pull-up;
+					drive-strength = <2>;
+				};
+
+				rclk {
+					pins = "sdc1_rclk";
+					bias-pull-down;
+				};
+			};
+
+			sdc2_on: sdc2_on {
+				clk {
+					pins = "sdc2_clk";
+					bias-disable;
+					drive-strength = <16>;
+				};
+
+				cmd {
+					pins = "sdc2_cmd";
+					bias-pull-up;
+					drive-strength = <10>;
+				};
+
+				data {
+					pins = "sdc2_data";
+					bias-pull-up;
+					drive-strength = <10>;
+				};
+
+				sd-cd {
+					pins = "gpio69";
+					bias-pull-up;
+					drive-strength = <2>;
+				};
+			};
+
+			sdc2_off: sdc2_off {
+				clk {
+					pins = "sdc2_clk";
+					bias-disable;
+					drive-strength = <2>;
+				};
+
+				cmd {
+					pins = "sdc2_cmd";
+					bias-pull-up;
+					drive-strength = <2>;
+				};
+
+				data {
+					pins = "sdc2_data";
+					bias-pull-up;
+					drive-strength = <2>;
+				};
+
+				sd-cd {
+					pins = "gpio69";
+					bias-disable;
+					drive-strength = <2>;
+				};
+			};
+		};
+
+		sdhc_2: sdhci@8804000 {
+			compatible = "qcom,sc7180-sdhci", "qcom,sdhci-msm-v5";
+			reg = <0 0x08804000 0 0x1000>;
+			reg-names = "hc_mem";
+
+			interrupts = <GIC_SPI 204 IRQ_TYPE_LEVEL_HIGH>,
+					<GIC_SPI 222 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "hc_irq", "pwr_irq";
+
+			clocks = <&gcc GCC_SDCC2_APPS_CLK>,
+					<&gcc GCC_SDCC2_AHB_CLK>;
+			clock-names = "core", "iface";
+
+			iommus = <&apps_smmu 0x80 0>;
+
+			bus-width = <4>;
+
+			status = "disabled";
 		};
 
 		qspi: spi@88dc000 {
-- 
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