linux-kernel - [PATCH v2] arm64: dts: rockchip: Add sdmmc

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Date:   Wed, 23 Jun 2021 16:59:18 +0200
From:   Alex Bee <knaerzche@...il.com>
To:     Heiko Stuebner <heiko@...ech.de>
Cc:     Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Johan Jonker <jbx6244@...il.com>, Chen-Yu Tsai <wens@...e.org>,
        Alex Bee <knaerzche@...il.com>
Subject: [PATCH v2] arm64: dts: rockchip: Add sdmmc_ext for RK3328

RK3328 SoC has a fourth mmc controller called SDMMC_EXT. Some
boards have sdio wifi connected to it. In order to use it
one would have to add the pinctrls from sdmmc0ext group which
is done on board level.

Signed-off-by: Alex Bee <knaerzche@...il.com>
---

 Changes in v2:
 - fixed node name in accordance to DT bindings (Johan)
 - seperated patch which adds reset controls for the
   other mmc controllers (Chen-Yu)

 arch/arm64/boot/dts/rockchip/rk3328.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
index da84be6f4715..aa11bce576a4 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
@@ -980,6 +980,20 @@ usb_host0_ohci: usb@...d0000 {
 		status = "disabled";
 	};
 
+	sdmmc_ext: mmc@...f0000 {
+		compatible = "rockchip,rk3328-dw-mshc", "rockchip,rk3288-dw-mshc";
+		reg = <0x0 0xff5f0000 0x0 0x4000>;
+		interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cru HCLK_SDMMC_EXT>, <&cru SCLK_SDMMC_EXT>,
+			 <&cru SCLK_SDMMC_EXT_DRV>, <&cru SCLK_SDMMC_EXT_SAMPLE>;
+		clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
+		fifo-depth = <0x100>;
+		max-frequency = <150000000>;
+		resets = <&cru SRST_SDMMCEXT>;
+		reset-names = "reset";
+		status = "disabled";
+	};
+
 	usbdrd3: usb@...00000 {
 		compatible = "rockchip,rk3328-dwc3", "snps,dwc3";
 		reg = <0x0 0xff600000 0x0 0x100000>;
-- 
2.27.0