From fec6519b84115504e5da3c35209529ac2189643c Mon Sep 17 00:00:00 2001
From: Nascs Fang <nascs@radxa.com>
Date: Thu, 24 Oct 2024 20:34:41 +0800
Subject: [PATCH] feat: add spi1 to rock2

Signed-off-by: Nascs Fang <nascs@radxa.com>
---
 .../arm64/boot/dts/rockchip/overlays/Makefile |  1 +
 .../rockchip/overlays/rk3528-spi1-cs-gpio.dts | 31 +++++++++++++++++++
 2 files changed, 32 insertions(+)
 create mode 100644 arch/arm64/boot/dts/rockchip/overlays/rk3528-spi1-cs-gpio.dts

diff --git a/arch/arm64/boot/dts/rockchip/overlays/Makefile b/arch/arm64/boot/dts/rockchip/overlays/Makefile
index f77b4410..0718631d 100644
--- a/arch/arm64/boot/dts/rockchip/overlays/Makefile
+++ b/arch/arm64/boot/dts/rockchip/overlays/Makefile
@@ -136,6 +136,7 @@ dtb-$(CONFIG_CLK_RK3528) += \
 	rk3528-spi0-cs1-enc28j60.dtbo \
 	rk3528-spi0-cs1-mcp2515.dtbo \
 	rk3528-spi0-cs1-spidev.dtbo \
+	rk3528-spi1-cs-gpio.dtbo \
 	rk3528-uart0-m0.dtbo \
 	rk3528-uart1-m0.dtbo \
 	rk3528-uart2-m1.dtbo \
diff --git a/arch/arm64/boot/dts/rockchip/overlays/rk3528-spi1-cs-gpio.dts b/arch/arm64/boot/dts/rockchip/overlays/rk3528-spi1-cs-gpio.dts
new file mode 100644
index 00000000..00ed8965
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/overlays/rk3528-spi1-cs-gpio.dts
@@ -0,0 +1,31 @@
+/dts-v1/;
+/plugin/;
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+
+/ {
+	metadata {
+		title = "Enable spidev on SPI1 over PIN_26";
+		compatible = "radxa,rock-2a", "radxa,rock-2f", "radxa,medge-rk3528a-io";
+		category = "misc";
+		exclusive = "GPIO1_B6", "GPIO1_B7", "GPIO1_C0", "GPIO4_C1";
+		description = "Enable spidev on SPI1 over PIN_26.";
+	};
+};
+
+&spi1 {
+	status = "okay";
+	#address-cells = <1>;
+	#size-cells = <0>;
+	max-freq = <50000000>;
+	num-cs = <1>;
+    cs-gpios = <&gpio4 RK_PC1 GPIO_ACTIVE_LOW>;
+    pinctrl-0 = <&spi1_pins>;
+
+	spidev@1 {
+		compatible = "rockchip,spidev";
+		status = "okay";
+		reg = <1>;
+		spi-max-frequency = <50000000>;
+	};
+};