linux-kernel - [PATCH 8/9] arm64: dts: rockchip: rk1808k-toybrick-m0: Enable eMMC

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Message-Id: <20210516230551.12469-9-afaerber@suse.de>
Date:   Mon, 17 May 2021 01:05:50 +0200
From:   Andreas Färber <afaerber@...e.de>
To:     linux-rockchip@...ts.infradead.org
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Andreas Färber <afaerber@...e.de>,
        Rob Herring <robh+dt@...nel.org>,
        Heiko Stuebner <heiko@...ech.de>, devicetree@...r.kernel.org
Subject: [PATCH 8/9] arm64: dts: rockchip: rk1808k-toybrick-m0: Enable eMMC

Add fake clocks (based on downstream kernel's debugfs clk_summary)
and enable eMMC.

Signed-off-by: Andreas Färber <afaerber@...e.de>
---
 .../boot/dts/rockchip/rk1808k-toybrick-m0.dts | 38 +++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk1808k-toybrick-m0.dts b/arch/arm64/boot/dts/rockchip/rk1808k-toybrick-m0.dts
index 15293a8576c6..aabe7a7034b2 100644
--- a/arch/arm64/boot/dts/rockchip/rk1808k-toybrick-m0.dts
+++ b/arch/arm64/boot/dts/rockchip/rk1808k-toybrick-m0.dts
@@ -38,6 +38,34 @@ vdd_cpu: vdd-cpu {
 		regulator-max-microvolt = <850000>;
 		vin-supply = <&vcc3v3_pcie>;
 	};
+
+	hclk_emmc: hclk-emmc {
+		compatible = "fixed-clock";
+		clock-frequency = <198000000>;
+		#clock-cells = <0>;
+		clock-output-names = "hclk_emmc";
+	};
+
+	sclk_emmc: sclk-emmc {
+		compatible = "fixed-clock";
+		clock-frequency = <297000000>;
+		#clock-cells = <0>;
+		clock-output-names = "sclk_emmc";
+	};
+
+	sclk_emmc_drv: sclk-emmc-drv {
+		compatible = "fixed-clock";
+		clock-frequency = <148500000>;
+		#clock-cells = <0>;
+		clock-output-names = "sclk_emmc_drv";
+	};
+
+	sclk_emmc_sample: sclk-emmc-sample {
+		compatible = "fixed-clock";
+		clock-frequency = <148500000>;
+		#clock-cells = <0>;
+		clock-output-names = "sclk_emmc_sample";
+	};
 };
 
 &cpu0 {
@@ -48,6 +76,16 @@ &cpu1 {
 	cpu-supply = <&vdd_cpu>;
 };
 
+&emmc {
+	status = "okay";
+	clocks = <&hclk_emmc>, <&sclk_emmc>, <&sclk_emmc_drv>, <&sclk_emmc_sample>;
+	clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
+	cap-mmc-highspeed;
+	mmc-hs200-1_2v;
+	non-removable;
+	bus-width = <8>;
+};
+
 &gic {
 	/delete-property/ interrupts;
 };
-- 
2.31.1