linux-kernel - [PATCH 1/2] arm64: dts: ti: k3-am62a-main: Add sdhci0 instance

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Date:   Fri, 27 Oct 2023 15:09:49 +0530
From:   Nitin Yadav <n-yadav@...com>
To:     <nm@...com>, <vigneshr@...com>, <kristo@...nel.org>,
        <robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
        <conor+dt@...nel.org>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH 1/2] arm64: dts: ti: k3-am62a-main: Add sdhci0 instance

Add sdhci0 DT node in k3-am62a-main for eMMC support. Droping
ITAP values as they are NA in datasheet[0] for lower speed modes.
Add mmc0 alias for sdhci0 in k3-am62a7-sk.dts.

[0]https://www.ti.com/lit/gpn/am62a3 Table: 7-79 (Page No. 179)

Signed-off-by: Nitin Yadav <n-yadav@...com>
---
 arch/arm64/boot/dts/ti/k3-am62a-main.dtsi | 19 +++++++++++++++++++
 arch/arm64/boot/dts/ti/k3-am62a7-sk.dts   |  1 +
 2 files changed, 20 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
index de36abb243f1..89b8b7d302cd 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
@@ -488,6 +488,25 @@ main_gpio1: gpio@...000 {
 		status = "disabled";
 	};
 
+	sdhci0: mmc@...0000 {
+		compatible = "ti,am62-sdhci";
+		reg = <0x00 0xfa10000 0x00 0x260>, <0x00 0xfa18000 0x00 0x134>;
+		interrupts = <GIC_SPI 133 IRQ_TYPE_LEVEL_HIGH>;
+		power-domains = <&k3_pds 57 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 57 5>, <&k3_clks 57 6>;
+		clock-names = "clk_ahb", "clk_xin";
+		assigned-clocks = <&k3_clks 57 6>;
+		assigned-clock-parents = <&k3_clks 57 8>;
+		mmc-hs200-1_8v;
+		ti,trm-icp = <0x2>;
+		ti,otap-del-sel-legacy = <0x0>;
+		ti,otap-del-sel-mmc-hs = <0x0>;
+		ti,otap-del-sel-hs200 = <0x6>;
+		bus-width = <8>;
+		ti,clkbuf-sel = <0x7>;
+		status = "disabled";
+	};
+
 	sdhci1: mmc@...0000 {
 		compatible = "ti,am62-sdhci";
 		reg = <0x00 0xfa00000 0x00 0x260>, <0x00 0xfa08000 0x00 0x134>;
diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
index cff283c75f8e..5d28c390b28e 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
@@ -20,6 +20,7 @@ aliases {
 		serial0 = &wkup_uart0;
 		serial2 = &main_uart0;
 		serial3 = &main_uart1;
+		mmc0 = &sdhci0;
 		mmc1 = &sdhci1;
 	};
 
-- 
2.25.1