arm64: dts: qcom: ipq9574: Add details for eMMC

RDP433 and RDP418 has NAND and eMMC variants. Presently, only NAND
variant is supported. To enable support for eMMC variant, add the
relevant GPIO and regulator information.

Do not enable NAND or eMMC by default in ipq9574-rdp-common.dtsi. Enable
it in board specific DTS as applicable.

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Varadarajan Narayanan <varadarajan.narayanan@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260205085936.3220108-2-varadarajan.narayanan@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

arch/arm64/boot/dts/qcom/ipq9574-rdp-common.dtsi

@@ -22,6 +22,15 @@
 		stdout-path = "serial0:115200n8";
 	};
 
+	regulator_fixed_1p8: s1800 {
+		compatible = "regulator-fixed";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-boot-on;
+		regulator-always-on;
+		regulator-name = "fixed_1p8";
+	};
+
 	regulator_fixed_3p3: s3300 {
 		compatible = "regulator-fixed";
 		regulator-min-microvolt = <3300000>;
@@ -137,6 +146,11 @@
 	};
 };
 
+&sdhc_1 {
+	vmmc-supply = <&regulator_fixed_3p3>;
+	vqmmc-supply = <&regulator_fixed_1p8>;
+};
+
 &sleep_clk {
 	clock-frequency = <32000>;
 };
@@ -185,6 +199,38 @@
 			bias-disable;
 		};
 	};
+
+	sdc_default_state: sdc-default-state {
+		clk-pins {
+			pins = "gpio5";
+			function = "sdc_clk";
+			drive-strength = <8>;
+			bias-disable;
+		};
+
+		cmd-pins {
+			pins = "gpio4";
+			function = "sdc_cmd";
+			drive-strength = <8>;
+			bias-pull-up;
+		};
+
+		data-pins {
+			pins = "gpio0", "gpio1", "gpio2",
+			       "gpio3", "gpio6", "gpio7",
+			       "gpio8", "gpio9";
+			function = "sdc_data";
+			drive-strength = <8>;
+			bias-pull-up;
+		};
+
+		rclk-pins {
+			pins = "gpio10";
+			function = "sdc_rclk";
+			drive-strength = <8>;
+			bias-pull-down;
+		};
+	};
 };
 
 &qpic_bam {
@@ -195,8 +241,6 @@
 	pinctrl-0 = <&qpic_snand_default_state>;
 	pinctrl-names = "default";
 
-	status = "okay";
-
 	flash@0 {
 		compatible = "spi-nand";
 		reg = <0>;

arch/arm64/boot/dts/qcom/ipq9574-rdp418.dts

@@ -16,48 +16,6 @@
 
 };
 
-&sdhc_1 {
-	pinctrl-0 = <&sdc_default_state>;
-	pinctrl-names = "default";
-	mmc-ddr-1_8v;
-	mmc-hs200-1_8v;
-	mmc-hs400-1_8v;
-	mmc-hs400-enhanced-strobe;
-	max-frequency = <384000000>;
-	bus-width = <8>;
+&qpic_nand {
 	status = "okay";
 };
-
-&tlmm {
-	sdc_default_state: sdc-default-state {
-		clk-pins {
-			pins = "gpio5";
-			function = "sdc_clk";
-			drive-strength = <8>;
-			bias-disable;
-		};
-
-		cmd-pins {
-			pins = "gpio4";
-			function = "sdc_cmd";
-			drive-strength = <8>;
-			bias-pull-up;
-		};
-
-		data-pins {
-			pins = "gpio0", "gpio1", "gpio2",
-			       "gpio3", "gpio6", "gpio7",
-			       "gpio8", "gpio9";
-			function = "sdc_data";
-			drive-strength = <8>;
-			bias-pull-up;
-		};
-
-		rclk-pins {
-			pins = "gpio10";
-			function = "sdc_rclk";
-			drive-strength = <8>;
-			bias-pull-down;
-		};
-	};
-};

arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts

@@ -55,6 +55,10 @@
 	status = "okay";
 };
 
+&qpic_nand {
+	status = "okay";
+};
+
 &tlmm {
 
 	pcie1_default: pcie1-default-state {

arch/arm64/boot/dts/qcom/ipq9574-rdp449.dts

@@ -15,3 +15,7 @@
 	compatible = "qcom,ipq9574-ap-al02-c6", "qcom,ipq9574";
 
 };
+
+&qpic_nand {
+	status = "okay";
+};

arch/arm64/boot/dts/qcom/ipq9574-rdp453.dts

@@ -15,3 +15,7 @@
 	compatible = "qcom,ipq9574-ap-al02-c8", "qcom,ipq9574";
 
 };
+
+&qpic_nand {
+	status = "okay";
+};

arch/arm64/boot/dts/qcom/ipq9574-rdp454.dts

@@ -14,3 +14,7 @@
 	model = "Qualcomm Technologies, Inc. IPQ9574/AP-AL02-C9";
 	compatible = "qcom,ipq9574-ap-al02-c9", "qcom,ipq9574";
 };
+
+&qpic_nand {
+	status = "okay";
+};

arch/arm64/boot/dts/qcom/ipq9574.dtsi

@@ -463,6 +463,15 @@
 			clock-names = "iface", "core", "xo", "ice";
 			non-removable;
 			supports-cqe;
+			pinctrl-0 = <&sdc_default_state>;
+			pinctrl-names = "default";
+			mmc-ddr-1_8v;
+			mmc-hs200-1_8v;
+			mmc-hs400-1_8v;
+			mmc-hs400-enhanced-strobe;
+			max-frequency = <384000000>;
+			bus-width = <8>;
+
 			status = "disabled";
 		};