RISC-V: Add BeagleV Starlight Beta device tree

Add initial device tree for the BeagleV Starlight Beta board. About 300
of these boards were sent out as part of a now cancelled BeagleBoard.org
project.

I2C timing data is based on the device tree in the vendor u-boot port.
Heartbeat LED added by Geert.

Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Co-developed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>

diff --git a/arch/riscv/boot/dts/Makefile b/arch/riscv/boot/dts/Makefile
index fe996b88319eb765610716eaf94a71543eda4165..ff174996cdfd0aa07c2729233aa896add60ce78e 100644 (file)
--- a/arch/riscv/boot/dts/Makefile
+++ b/arch/riscv/boot/dts/Makefile
@@ -1,5 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 subdir-y += sifive
+subdir-y += starfive
 subdir-$(CONFIG_SOC_CANAAN_K210_DTB_BUILTIN) += canaan
 subdir-y += microchip
 

diff --git a/arch/riscv/boot/dts/starfive/Makefile b/arch/riscv/boot/dts/starfive/Makefile
new file mode 100644 (file)
index 0000000..0ea1bc1
--- /dev/null
+++ b/arch/riscv/boot/dts/starfive/Makefile
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
+dtb-$(CONFIG_SOC_STARFIVE) += jh7100-beaglev-starlight.dtb

diff --git a/arch/riscv/boot/dts/starfive/jh7100-beaglev-starlight.dts b/arch/riscv/boot/dts/starfive/jh7100-beaglev-starlight.dts
new file mode 100644 (file)
index 0000000..c9af67f
--- /dev/null
+++ b/arch/riscv/boot/dts/starfive/jh7100-beaglev-starlight.dts
@@ -0,0 +1,164 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2021 StarFive Technology Co., Ltd.
+ * Copyright (C) 2021 Emil Renner Berthing <kernel@esmil.dk>
+ */
+
+/dts-v1/;
+#include "jh7100.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/pinctrl/pinctrl-starfive.h>
+
+/ {
+       model = "BeagleV Starlight Beta";
+       compatible = "beagle,beaglev-starlight-jh7100-r0", "starfive,jh7100";
+
+       aliases {
+               serial0 = &uart3;
+       };
+
+       chosen {
+               stdout-path = "serial0:115200n8";
+       };
+
+       cpus {
+               timebase-frequency = <6250000>;
+       };
+
+       memory@80000000 {
+               device_type = "memory";
+               reg = <0x0 0x80000000 0x2 0x0>;
+       };
+
+       leds {
+               compatible = "gpio-leds";
+
+               led-ack {
+                       gpios = <&gpio 43 GPIO_ACTIVE_HIGH>;
+                       color = <LED_COLOR_ID_GREEN>;
+                       function = LED_FUNCTION_HEARTBEAT;
+                       linux,default-trigger = "heartbeat";
+                       label = "ack";
+               };
+       };
+};
+
+&gpio {
+       i2c0_pins: i2c0-0 {
+               i2c-pins {
+                       pinmux = <GPIOMUX(62, GPO_LOW,
+                                 GPO_I2C0_PAD_SCK_OEN,
+                                 GPI_I2C0_PAD_SCK_IN)>,
+                                <GPIOMUX(61, GPO_LOW,
+                                 GPO_I2C0_PAD_SDA_OEN,
+                                 GPI_I2C0_PAD_SDA_IN)>;
+                       bias-disable; /* external pull-up */
+                       input-enable;
+                       input-schmitt-enable;
+               };
+       };
+
+       i2c1_pins: i2c1-0 {
+               i2c-pins {
+                       pinmux = <GPIOMUX(47, GPO_LOW,
+                                 GPO_I2C1_PAD_SCK_OEN,
+                                 GPI_I2C1_PAD_SCK_IN)>,
+                                <GPIOMUX(48, GPO_LOW,
+                                 GPO_I2C1_PAD_SDA_OEN,
+                                 GPI_I2C1_PAD_SDA_IN)>;
+                       bias-pull-up;
+                       input-enable;
+                       input-schmitt-enable;
+               };
+       };
+
+       i2c2_pins: i2c2-0 {
+               i2c-pins {
+                       pinmux = <GPIOMUX(60, GPO_LOW,
+                                 GPO_I2C2_PAD_SCK_OEN,
+                                 GPI_I2C2_PAD_SCK_IN)>,
+                                <GPIOMUX(59, GPO_LOW,
+                                 GPO_I2C2_PAD_SDA_OEN,
+                                 GPI_I2C2_PAD_SDA_IN)>;
+                       bias-disable; /* external pull-up */
+                       input-enable;
+                       input-schmitt-enable;
+               };
+       };
+
+       uart3_pins: uart3-0 {
+               rx-pins {
+                       pinmux = <GPIOMUX(13, GPO_LOW, GPO_DISABLE,
+                                 GPI_UART3_PAD_SIN)>;
+                       bias-pull-up;
+                       drive-strength = <14>;
+                       input-enable;
+                       input-schmitt-enable;
+                       slew-rate = <0>;
+               };
+               tx-pins {
+                       pinmux = <GPIOMUX(14, GPO_UART3_PAD_SOUT,
+                                 GPO_ENABLE, GPI_NONE)>;
+                       bias-disable;
+                       drive-strength = <35>;
+                       input-disable;
+                       input-schmitt-disable;
+                       slew-rate = <0>;
+               };
+       };
+};
+
+&i2c0 {
+       clock-frequency = <100000>;
+       i2c-sda-hold-time-ns = <300>;
+       i2c-sda-falling-time-ns = <500>;
+       i2c-scl-falling-time-ns = <500>;
+       pinctrl-names = "default";
+       pinctrl-0 = <&i2c0_pins>;
+       status = "okay";
+
+       pmic@5e {
+               compatible = "ti,tps65086";
+               reg = <0x5e>;
+               gpio-controller;
+               #gpio-cells = <2>;
+
+               regulators {
+               };
+       };
+};
+
+&i2c1 {
+       clock-frequency = <400000>;
+       i2c-sda-hold-time-ns = <300>;
+       i2c-sda-falling-time-ns = <100>;
+       i2c-scl-falling-time-ns = <100>;
+       pinctrl-names = "default";
+       pinctrl-0 = <&i2c1_pins>;
+       status = "okay";
+};
+
+&i2c2 {
+       clock-frequency = <100000>;
+       i2c-sda-hold-time-ns = <300>;
+       i2c-sda-falling-time-ns = <500>;
+       i2c-scl-falling-time-ns = <500>;
+       pinctrl-names = "default";
+       pinctrl-0 = <&i2c2_pins>;
+       status = "okay";
+};
+
+&osc_sys {
+       clock-frequency = <25000000>;
+};
+
+&osc_aud {
+       clock-frequency = <27000000>;
+};
+
+&uart3 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&uart3_pins>;
+       status = "okay";
+};