linux-kernel - [PATCH v2] arm64: tegra: Add Tegra234 SDMMC1 device tree node

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Date:   Fri, 7 Oct 2022 18:14:24 +0530
From:   Prathamesh Shete <pshete@...dia.com>
To:     <robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
        <thierry.reding@...il.com>, <jonathanh@...dia.com>,
        <devicetree@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
CC:     <smangipudi@...dia.com>, <pshete@...dia.com>,
        <kyarlagadda@...dia.com>, <anrao@...dia.com>
Subject: [PATCH v2] arm64: tegra: Add Tegra234 SDMMC1 device tree node

Add device tree node for Tegra234 SDMMC1 instance.
Add and enable SD card instance in device tree.

Signed-off-by: Prathamesh Shete <pshete@...dia.com>
---
 .../boot/dts/nvidia/tegra234-p3701-0000.dtsi  |  7 +++
 arch/arm64/boot/dts/nvidia/tegra234.dtsi      | 59 +++++++++++++++++++
 2 files changed, 66 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi b/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi
index 9e4d72cfa69f..fe52810e5b9d 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi
@@ -55,6 +55,13 @@
 			};
 		};
 
+		mmc@...0000 {
+			status = "okay";
+			bus-width = <4>;
+			cd-gpios = <&gpio TEGRA234_MAIN_GPIO(G, 7) GPIO_ACTIVE_LOW>;
+			disable-wp;
+		};
+
 		mmc@...0000 {
 			status = "okay";
 			bus-width = <8>;
diff --git a/arch/arm64/boot/dts/nvidia/tegra234.dtsi b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
index 0170bfa8a467..0468613e1dfb 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
@@ -7,6 +7,7 @@
 #include <dt-bindings/memory/tegra234-mc.h>
 #include <dt-bindings/power/tegra234-powergate.h>
 #include <dt-bindings/reset/tegra234-reset.h>
+#include <dt-bindings/pinctrl/pinctrl-tegra-io-pad.h>
 
 / {
 	compatible = "nvidia,tegra234";
@@ -895,6 +896,45 @@
 			status = "disabled";
 		};
 
+		mmc@...0000 {
+			compatible = "nvidia,tegra194-sdhci", "nvidia,tegra234-sdhci";
+			reg = <0x03400000 0x20000>;
+			interrupts = <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&bpmp TEGRA234_CLK_SDMMC1>,
+				 <&bpmp TEGRA234_CLK_SDMMC_LEGACY_TM>;
+			clock-names = "sdhci", "tmclk";
+			assigned-clocks = <&bpmp TEGRA234_CLK_SDMMC1>,
+					<&bpmp TEGRA234_CLK_PLLC4_MUXED>;
+			assigned-clock-parents =
+					  <&bpmp TEGRA234_CLK_PLLC4_MUXED>,
+					  <&bpmp TEGRA234_CLK_PLLC4_VCO_DIV2>;
+			resets = <&bpmp TEGRA234_RESET_SDMMC1>;
+			reset-names = "sdhci";
+			interconnects = <&mc TEGRA234_MEMORY_CLIENT_SDMMCRA &emc>,
+					<&mc TEGRA234_MEMORY_CLIENT_SDMMCWA &emc>;
+			interconnect-names = "dma-mem", "write";
+			iommus = <&smmu_niso1 TEGRA234_SID_SDMMC1A>;
+			pinctrl-names = "sdmmc-3v3", "sdmmc-1v8";
+			pinctrl-0 = <&sdmmc1_3v3>;
+			pinctrl-1 = <&sdmmc1_1v8>;
+			nvidia,pad-autocal-pull-up-offset-3v3-timeout =
+								      <0x07>;
+			nvidia,pad-autocal-pull-down-offset-3v3-timeout =
+									<0x07>;
+			nvidia,pad-autocal-pull-up-offset-1v8-timeout = <0x06>;
+			nvidia,pad-autocal-pull-down-offset-1v8-timeout =
+									<0x07>;
+			nvidia,pad-autocal-pull-up-offset-sdr104 = <0x00>;
+			nvidia,pad-autocal-pull-down-offset-sdr104 = <0x00>;
+			nvidia,default-tap = <14>;
+			nvidia,default-trim = <0x8>;
+			sd-uhs-sdr25;
+			sd-uhs-sdr50;
+			sd-uhs-ddr50;
+			sd-uhs-sdr104;
+			status = "disabled";
+		};
+
 		mmc@...0000 {
 			compatible = "nvidia,tegra234-sdhci", "nvidia,tegra186-sdhci";
 			reg = <0x03460000 0x20000>;
@@ -1541,6 +1581,25 @@
 
 			#interrupt-cells = <2>;
 			interrupt-controller;
+			sdmmc1_3v3: sdmmc1-3v3 {
+				pins = "sdmmc1-hv";
+				power-source = <TEGRA_IO_PAD_VOLTAGE_3V3>;
+			};
+
+			sdmmc1_1v8: sdmmc1-1v8 {
+				pins = "sdmmc1-hv";
+				power-source = <TEGRA_IO_PAD_VOLTAGE_1V8>;
+			};
+
+			sdmmc3_3v3: sdmmc3-3v3 {
+				pins = "sdmmc3-hv";
+				power-source = <TEGRA_IO_PAD_VOLTAGE_3V3>;
+			};
+
+			sdmmc3_1v8: sdmmc3-1v8 {
+				pins = "sdmmc3-hv";
+				power-source = <TEGRA_IO_PAD_VOLTAGE_1V8>;
+			};
 		};
 
 		aon-fabric@...0000 {
-- 
2.17.1