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RISC-V: Add BeagleV Starlight Beta device tree

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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>
This commit is contained in:
Emil Renner Berthing 2021-10-10 19:48:36 +02:00
parent ec85362fb1
commit a43676272a
3 changed files with 167 additions and 0 deletions
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1
arch/riscv/boot/dts/Makefile
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@ -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

2
arch/riscv/boot/dts/starfive/Makefile Normal file
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@ -0,0 +1,2 @@
# SPDX-License-Identifier: GPL-2.0
dtb-$(CONFIG_SOC_STARFIVE) += jh7100-beaglev-starlight.dtb

164
arch/riscv/boot/dts/starfive/jh7100-beaglev-starlight.dts Normal file
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@ -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";
};