From fc86405992c37b1898fd9b9bc077be673d774269 Mon Sep 17 00:00:00 2001
From: Hal Feng <hal.feng@starfivetech.com>
Date: Fri, 22 Mar 2024 09:54:28 +0800
Subject: [PATCH 111/116] riscv: dts: starfive: Add vf2-overlay dtso subdir

Create subdir vf2-overlay/ and add overlay .dtso for VF2 board.
The code is ported from tag JH7110_VF2_6.1_v5.11.4

Signed-off-by: Hal Feng <hal.feng@starfivetech.com>
---
 arch/riscv/boot/dts/starfive/Makefile         |  1 +
 .../boot/dts/starfive/vf2-overlay/Makefile    |  3 +
 .../starfive/vf2-overlay/vf2-overlay-can.dtso | 23 ++++++
 .../vf2-overlay/vf2-overlay-uart3-i2c.dtso    | 75 +++++++++++++++++++
 4 files changed, 102 insertions(+)
 create mode 100644 arch/riscv/boot/dts/starfive/vf2-overlay/Makefile
 create mode 100644 arch/riscv/boot/dts/starfive/vf2-overlay/vf2-overlay-can.dtso
 create mode 100644 arch/riscv/boot/dts/starfive/vf2-overlay/vf2-overlay-uart3-i2c.dtso

--- a/arch/riscv/boot/dts/starfive/Makefile
+++ b/arch/riscv/boot/dts/starfive/Makefile
@@ -9,6 +9,7 @@ DTC_FLAGS_jh7110-evb := -@
 dtb-$(CONFIG_ARCH_STARFIVE) += jh7100-beaglev-starlight.dtb
 dtb-$(CONFIG_ARCH_STARFIVE) += jh7100-starfive-visionfive-v1.dtb
 
+subdir-y += vf2-overlay
 dtb-$(CONFIG_ARCH_STARFIVE) += jh7110-starfive-visionfive-2-v1.2a.dtb
 dtb-$(CONFIG_ARCH_STARFIVE) += jh7110-starfive-visionfive-2-v1.3b.dtb	\
 						jh7110-starfive-visionfive-2-ac108.dtb	\
--- /dev/null
+++ b/arch/riscv/boot/dts/starfive/vf2-overlay/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
+dtb-$(CONFIG_ARCH_STARFIVE) += vf2-overlay-uart3-i2c.dtbo	\
+			       vf2-overlay-can.dtbo
--- /dev/null
+++ b/arch/riscv/boot/dts/starfive/vf2-overlay/vf2-overlay-can.dtso
@@ -0,0 +1,23 @@
+/dts-v1/;
+/plugin/;
+#include <dt-bindings/gpio/gpio.h>
+#include "../jh7110-pinfunc.h"
+/ {
+	compatible = "starfive,jh7110";
+
+	//can0
+	fragment@0 {
+		target-path = "/soc/can@130d0000";
+		__overlay__ {
+			status = "okay";
+		};
+	};
+
+	//can1
+	fragment@1 {
+		target-path = "/soc/can@130e0000";
+		__overlay__ {
+			status = "okay";
+		};
+	};
+};
--- /dev/null
+++ b/arch/riscv/boot/dts/starfive/vf2-overlay/vf2-overlay-uart3-i2c.dtso
@@ -0,0 +1,75 @@
+/dts-v1/;
+/plugin/;
+#include <dt-bindings/gpio/gpio.h>
+#include "../jh7110-pinfunc.h"
+/ {
+	compatible = "starfive,jh7110";
+
+	//sysgpio
+	fragment@0 {
+		target-path = "/soc/pinctrl@13040000";
+		__overlay__ {
+			dt_uart3_pins: dt-uart3-0 {
+				tx-pins {
+					pinmux = <GPIOMUX(60, GPOUT_SYS_UART3_TX,
+							      GPOEN_ENABLE,
+							      GPI_NONE)>;
+					bias-disable;
+					drive-strength = <12>;
+					input-disable;
+					input-schmitt-disable;
+					slew-rate = <0>;
+				};
+
+				rx-pins {
+					pinmux = <GPIOMUX(63, GPOUT_LOW,
+							      GPOEN_DISABLE,
+							      GPI_SYS_UART3_RX)>;
+					bias-pull-up;
+					drive-strength = <2>;
+					input-enable;
+					input-schmitt-enable;
+					slew-rate = <0>;
+				};
+			};
+
+			dt_i2c1_pins: dt-i2c1-0 {
+				i2c-pins {
+					pinmux = <GPIOMUX(42, GPOUT_LOW,
+							      GPOEN_SYS_I2C1_CLK,
+							      GPI_SYS_I2C1_CLK)>,
+						 <GPIOMUX(43, GPOUT_LOW,
+							      GPOEN_SYS_I2C1_DATA,
+							      GPI_SYS_I2C1_DATA)>;
+					bias-pull-up;
+					input-enable;
+					input-schmitt-enable;
+				};
+			};
+		};
+	};
+
+	//uart3
+	fragment@1 {
+		target-path = "/soc/serial@12000000";
+		__overlay__ {
+			pinctrl-names = "default";
+			pinctrl-0 = <&dt_uart3_pins>;
+			status = "okay";
+		};
+	};
+
+	//i2c1
+	fragment@2 {
+		target-path = "/soc/i2c@10040000";
+		__overlay__ {
+			clock-frequency = <100000>;
+			i2c-sda-hold-time-ns = <300>;
+			i2c-sda-falling-time-ns = <510>;
+			i2c-scl-falling-time-ns = <510>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&dt_i2c1_pins>;
+			status = "okay";
+		};
+	};
+};