linux-kernel - [PATCH v7 2/4] riscv: dts: thead: Add TH1520 mmc controllers and sdhci clock

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Message-Id: <20231129-th1520_mmc_dts-v7-2-c77fc19caa6f@baylibre.com>
Date:   Wed, 29 Nov 2023 17:48:48 -0800
From:   Drew Fustini <dfustini@...libre.com>
To:     Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Jisheng Zhang <jszhang@...nel.org>,
        Guo Ren <guoren@...nel.org>, Fu Wei <wefu@...hat.com>,
        Conor Dooley <conor@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     Jason Kridner <jkridner@...gleboard.org>,
        Robert Nelson <robertcnelson@...gleboard.org>,
        linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, Drew Fustini <dfustini@...libre.com>
Subject: [PATCH v7 2/4] riscv: dts: thead: Add TH1520 mmc controllers and
 sdhci clock

Add node for the SDHCI fixed clock. Add mmc0 node for the first mmc
controller instance which is typically connected to the eMMC device.
Add mmc1 node for the second mmc controller instance which is typically
connected to microSD slot.

Signed-off-by: Drew Fustini <dfustini@...libre.com>
---
 arch/riscv/boot/dts/thead/th1520.dtsi | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/arch/riscv/boot/dts/thead/th1520.dtsi b/arch/riscv/boot/dts/thead/th1520.dtsi
index ba4d2c673ac8..af4fdcd82e0b 100644
--- a/arch/riscv/boot/dts/thead/th1520.dtsi
+++ b/arch/riscv/boot/dts/thead/th1520.dtsi
@@ -146,6 +146,13 @@ uart_sclk: uart-sclk-clock {
 		#clock-cells = <0>;
 	};
 
+	sdhci_clk: sdhci-clock {
+		compatible = "fixed-clock";
+		clock-frequency = <198000000>;
+		clock-output-names = "sdhci_clk";
+		#clock-cells = <0>;
+	};
+
 	soc {
 		compatible = "simple-bus";
 		interrupt-parent = <&plic>;
@@ -304,6 +311,24 @@ dmac0: dma-controller@...fc00000 {
 			status = "disabled";
 		};
 
+		mmc0: mmc@...7080000 {
+			compatible = "thead,th1520-dwcmshc";
+			reg = <0xff 0xe7080000 0x0 0x10000>;
+			interrupts = <62 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&sdhci_clk>;
+			clock-names = "core";
+			status = "disabled";
+		};
+
+		mmc1: mmc@...7090000 {
+			compatible = "thead,th1520-dwcmshc";
+			reg = <0xff 0xe7090000 0x0 0x10000>;
+			interrupts = <64 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&sdhci_clk>;
+			clock-names = "core";
+			status = "disabled";
+		};
+
 		timer0: timer@...fc32000 {
 			compatible = "snps,dw-apb-timer";
 			reg = <0xff 0xefc32000 0x0 0x14>;

-- 
2.34.1