linux-kernel - [PATCH v2 3/3] riscv: dts: starfive: Add QSPI controller node for StarFive JH7110 SoC

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Date:   Fri, 2 Jun 2023 16:49:25 +0800
From:   William Qiu <william.qiu@...rfivetech.com>
To:     <devicetree@...r.kernel.org>, <linux-spi@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-riscv@...ts.infradead.org>
CC:     Mark Brown <broonie@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Emil Renner Berthing <kernel@...il.dk>,
        Ziv Xu <ziv.xu@...rfivetech.com>,
        William Qiu <william.qiu@...rfivetech.com>
Subject: [PATCH v2 3/3] riscv: dts: starfive: Add QSPI controller node for StarFive JH7110 SoC

Add the quad spi controller node for the StarFive JH7110 SoC.

Co-developed-by: Ziv Xu <ziv.xu@...rfivetech.com>
Signed-off-by: Ziv Xu <ziv.xu@...rfivetech.com>
Signed-off-by: William Qiu <william.qiu@...rfivetech.com>
Reviewed-by: Hal Feng <hal.feng@...rfivetech.com>
---
 .../jh7110-starfive-visionfive-2.dtsi         | 32 +++++++++++++++++++
 arch/riscv/boot/dts/starfive/jh7110.dtsi      | 18 +++++++++++
 2 files changed, 50 insertions(+)

diff --git a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
index 2a6d81609284..22212c1150f9 100644
--- a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
@@ -126,6 +126,38 @@ &i2c6 {
 	status = "okay";
 };
 
+&qspi {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	nor_flash: flash@0 {
+		compatible = "jedec,spi-nor";
+		reg=<0>;
+		cdns,read-delay = <5>;
+		spi-max-frequency = <12000000>;
+		cdns,tshsl-ns = <1>;
+		cdns,tsd2d-ns = <1>;
+		cdns,tchsh-ns = <1>;
+		cdns,tslch-ns = <1>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			spl@0 {
+				reg = <0x0 0x20000>;
+			};
+			uboot@...000 {
+				reg = <0x100000 0x300000>;
+			};
+			data@...000 {
+				reg = <0xf00000 0x100000>;
+			};
+		};
+	};
+};
+
 &sysgpio {
 	i2c0_pins: i2c0-0 {
 		i2c-pins {
diff --git a/arch/riscv/boot/dts/starfive/jh7110.dtsi b/arch/riscv/boot/dts/starfive/jh7110.dtsi
index 4c5fdb905da8..e1a51e57a851 100644
--- a/arch/riscv/boot/dts/starfive/jh7110.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7110.dtsi
@@ -440,6 +440,24 @@ i2c6: i2c@...60000 {
 			status = "disabled";
 		};
 
+		qspi: spi@...10000 {
+			compatible = "starfive,jh7110-qspi", "cdns,qspi-nor";
+			reg = <0x0 0x13010000 0x0 0x10000
+				0x0 0x21000000 0x0 0x400000>;
+			interrupts = <25>;
+			clocks = <&syscrg JH7110_SYSCLK_QSPI_REF>,
+				 <&syscrg JH7110_SYSCLK_QSPI_AHB>,
+				 <&syscrg JH7110_SYSCLK_QSPI_APB>;
+			clock-names = "ref_clk", "hclk", "pclk";
+			resets = <&syscrg JH7110_SYSRST_QSPI_APB>,
+				 <&syscrg JH7110_SYSRST_QSPI_AHB>,
+				 <&syscrg JH7110_SYSRST_QSPI_REF>;
+			reset-names = "qspi", "qspi-ocp", "rstc_ref";
+			cdns,fifo-depth = <256>;
+			cdns,fifo-width = <4>;
+			cdns,trigger-address = <0x0>;
+		};
+
 		syscrg: clock-controller@...20000 {
 			compatible = "starfive,jh7110-syscrg";
 			reg = <0x0 0x13020000 0x0 0x10000>;
-- 
2.34.1