linux-kernel - [PATCH V2 1/2] arm64: dts: qcom: Add eMMC support for qcs8300

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Message-ID: <20250619070224.23428-2-quic_sayalil@quicinc.com>
Date: Thu, 19 Jun 2025 12:32:23 +0530
From: Sayali Lokhande <quic_sayalil@...cinc.com>
To: <andersson@...nel.org>, <konradybcio@...nel.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>
CC: <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH V2 1/2] arm64: dts: qcom: Add eMMC support for qcs8300

Add eMMC support for qcs8300 board.

Signed-off-by: Sayali Lokhande <quic_sayalil@...cinc.com>
---
 arch/arm64/boot/dts/qcom/qcs8300-ride.dts |  21 ++++
 arch/arm64/boot/dts/qcom/qcs8300.dtsi     | 113 ++++++++++++++++++++++
 2 files changed, 134 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs8300-ride.dts b/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
index 8c166ead912c..9c37a0f5ba25 100644
--- a/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
+++ b/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
@@ -17,6 +17,7 @@
 
 	aliases {
 		serial0 = &uart7;
+		mmc0 = &sdhc_1;
 	};
 
 	chosen {
@@ -332,6 +333,26 @@
 	status = "okay";
 };
 
+&sdhc_1 {
+	pinctrl-0 = <&sdc1_state_on>;
+	pinctrl-1 = <&sdc1_state_off>;
+	pinctrl-names = "default", "sleep";
+
+	bus-width = <8>;
+	mmc-ddr-1_8v;
+	mmc-hs200-1_8v;
+	mmc-hs400-1_8v;
+	mmc-hs400-enhanced-strobe;
+	vmmc-supply = <&vreg_l8a>;
+	vqmmc-supply = <&vreg_s4a>;
+
+	non-removable;
+	no-sd;
+	no-sdio;
+
+	status = "okay";
+};
+
 &tlmm {
 	ethernet0_default: ethernet0-default-state {
 		ethernet0_mdc: ethernet0-mdc-pins {
diff --git a/arch/arm64/boot/dts/qcom/qcs8300.dtsi b/arch/arm64/boot/dts/qcom/qcs8300.dtsi
index 7ada029c32c1..98f023def05f 100644
--- a/arch/arm64/boot/dts/qcom/qcs8300.dtsi
+++ b/arch/arm64/boot/dts/qcom/qcs8300.dtsi
@@ -3837,6 +3837,69 @@
 			clock-names = "apb_pclk";
 		};
 
+		sdhc_1: mmc@...4000 {
+			compatible = "qcom,qcs8300-sdhci", "qcom,sdhci-msm-v5";
+			reg = <0x0 0x87C4000 0x0 0x1000>,
+			      <0x0 0x87C5000 0x0 0x1000>;
+			reg-names = "hc",
+				    "cqhci";
+
+			interrupts = <GIC_SPI 383 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 521 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "hc_irq",
+					  "pwr_irq";
+
+			clocks = <&gcc GCC_SDCC1_AHB_CLK>,
+				 <&gcc GCC_SDCC1_APPS_CLK>,
+				 <&rpmhcc RPMH_CXO_CLK>;
+			clock-names = "iface",
+				      "core",
+				      "xo";
+
+			resets = <&gcc GCC_SDCC1_BCR>;
+
+			power-domains = <&rpmhpd RPMHPD_CX>;
+			operating-points-v2 = <&sdhc1_opp_table>;
+			iommus = <&apps_smmu 0x0 0x0>;
+			interconnects = <&aggre1_noc MASTER_SDC QCOM_ICC_TAG_ALWAYS
+					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
+					<&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+					 &config_noc SLAVE_SDCC_1 QCOM_ICC_TAG_ACTIVE_ONLY>;
+			interconnect-names = "sdhc-ddr",
+					     "cpu-sdhc";
+
+			qcom,dll-config = <0x000F64EE>;
+			qcom,ddr-config = <0x80040868>;
+			supports-cqe;
+			dma-coherent;
+
+			status = "disabled";
+
+			sdhc1_opp_table: opp-table {
+				compatible = "operating-points-v2";
+
+				opp-50000000 {
+					opp-hz = /bits/ 64 <50000000>;
+					required-opps = <&rpmhpd_opp_low_svs>;
+				};
+
+				opp-100000000 {
+					opp-hz = /bits/ 64 <100000000>;
+					required-opps = <&rpmhpd_opp_svs>;
+				};
+
+				opp-200000000 {
+					opp-hz = /bits/ 64 <200000000>;
+					required-opps = <&rpmhpd_opp_svs_l1>;
+				};
+
+				opp-384000000 {
+					opp-hz = /bits/ 64 <384000000>;
+					required-opps = <&rpmhpd_opp_nom>;
+				};
+			};
+		};
+
 		usb_1_hsphy: phy@...4000 {
 			compatible = "qcom,qcs8300-usb-hs-phy",
 				     "qcom,usb-snps-hs-7nm-phy";
@@ -5042,6 +5105,56 @@
 				pins = "gpio13";
 				function = "qup2_se0";
 			};
+
+			sdc1_state_on: sdc1-on-state {
+				clk-pins {
+					pins = "sdc1_clk";
+					bias-disable;
+					drive-strength = <16>;
+				};
+
+				cmd-pins {
+					pins = "sdc1_cmd";
+					bias-pull-up;
+					drive-strength = <10>;
+				};
+
+				data-pins {
+					pins = "sdc1_data";
+					bias-pull-up;
+					drive-strength = <10>;
+				};
+
+				rclk-pins {
+					pins = "sdc1_rclk";
+					bias-pull-down;
+				};
+			};
+
+			sdc1_state_off: sdc1-off-state {
+				clk-pins {
+					pins = "sdc1_clk";
+					bias-bus-hold;
+					drive-strength = <2>;
+				};
+
+				cmd-pins {
+					pins = "sdc1_cmd";
+					bias-bus-hold;
+					drive-strength = <2>;
+				};
+
+				data-pins {
+					pins = "sdc1_data";
+					bias-bus-hold;
+					drive-strength = <2>;
+				};
+
+				rclk-pins {
+					pins = "sdc1_rclk";
+					bias-bus-hold;
+				};
+			};
 		};
 
 		sram: sram@...d8000 {
-- 
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