linux-kernel - [PATCH v5 2/3] arm64: dts: qcom: qdu1000: Add SDHCI node

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Date:   Thu,  1 Jun 2023 16:41:27 +0530
From:   Komal Bajaj <quic_kbajaj@...cinc.com>
To:     Ulf Hansson <ulf.hansson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Bhupesh Sharma <bhupesh.sharma@...aro.org>
Cc:     Komal Bajaj <quic_kbajaj@...cinc.com>, linux-mmc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org
Subject: [PATCH v5 2/3] arm64: dts: qcom: qdu1000: Add SDHCI node

Add sdhc node for eMMC on QDU1000 and QRU1000 SoCs. Also add
required pins for SDHCI, so that the interface can work reliably.

Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>
Signed-off-by: Komal Bajaj <quic_kbajaj@...cinc.com>
---
 arch/arm64/boot/dts/qcom/qdu1000.dtsi | 97 +++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qdu1000.dtsi b/arch/arm64/boot/dts/qcom/qdu1000.dtsi
index 734438113bba..9f615f3368c2 100644
--- a/arch/arm64/boot/dts/qcom/qdu1000.dtsi
+++ b/arch/arm64/boot/dts/qcom/qdu1000.dtsi
@@ -842,6 +842,53 @@
 			#hwlock-cells = <1>;
 		};

+		sdhc: mmc@...4000 {
+			compatible = "qcom,qdu1000-sdhci", "qcom,sdhci-msm-v5";
+			reg = <0x0 0x08804000 0x0 0x1000>,
+			      <0x0 0x08805000 0x0 0x1000>;
+			reg-names = "hc", "cqhci";
+
+			interrupts = <GIC_SPI 207 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 223 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "hc_irq", "pwr_irq";
+
+			clocks = <&gcc GCC_SDCC5_AHB_CLK>,
+				 <&gcc GCC_SDCC5_APPS_CLK>,
+				 <&rpmhcc RPMH_CXO_CLK>;
+			clock-names = "iface",
+				      "core",
+				      "xo";
+
+			resets = <&gcc GCC_SDCC5_BCR>;
+
+			interconnects = <&system_noc MASTER_SDCC_1 0 &mc_virt SLAVE_EBI1 0>,
+					<&gem_noc MASTER_APPSS_PROC 0 &system_noc SLAVE_SDCC_2 0>;
+			interconnect-names = "sdhc-ddr", "cpu-sdhc";
+			power-domains = <&rpmhpd QDU1000_CX>;
+			operating-points-v2 = <&sdhc1_opp_table>;
+
+			iommus = <&apps_smmu 0x80 0x0>;
+			dma-coherent;
+
+			bus-width = <8>;
+
+			qcom,dll-config = <0x0007642c>;
+			qcom,ddr-config = <0x80040868>;
+
+			status = "disabled";
+
+			sdhc1_opp_table: opp-table {
+				compatible = "operating-points-v2";
+
+				opp-384000000 {
+					opp-hz = /bits/ 64 <384000000>;
+					required-opps = <&rpmhpd_opp_nom>;
+					opp-peak-kBps = <6528000 1652800>;
+					opp-avg-kBps = <400000 0>;
+				};
+			};
+		};
+
 		pdc: interrupt-controller@...0000 {
 			compatible = "qcom,qdu1000-pdc", "qcom,pdc";
 			reg = <0x0 0xb220000 0x0 0x30000>, <0x0 0x174000f0 0x0 0x64>;
@@ -1100,6 +1147,56 @@
 				pins = "gpio31";
 				function = "gpio";
 			};
+
+			sdc_on_state: sdc-on-state {
+				clk-pins {
+					pins = "sdc1_clk";
+					drive-strength = <16>;
+					bias-disable;
+				};
+
+				cmd-pins {
+					pins = "sdc1_cmd";
+					drive-strength = <10>;
+					bias-pull-up;
+				};
+
+				data-pins {
+					pins = "sdc1_data";
+					drive-strength = <10>;
+					bias-pull-up;
+				};
+
+				rclk-pins {
+					pins = "sdc1_rclk";
+					bias-pull-down;
+				};
+			};
+
+			sdc_off_state: sdc-off-state {
+				clk-pins {
+					pins = "sdc1_clk";
+					drive-strength = <2>;
+					bias-disable;
+				};
+
+				cmd-pins {
+					pins = "sdc1_cmd";
+					drive-strength = <2>;
+					bias-pull-up;
+				};
+
+				data-pins {
+					pins = "sdc1_data";
+					drive-strength = <2>;
+					bias-pull-up;
+				};
+
+				rclk-pins {
+					pins = "sdc1_rclk";
+					bias-pull-down;
+				};
+			};
 		};

 		apps_smmu: iommu@...00000 {
--
2.17.1