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RISC-V Devicetrees for v7.3

Browse Source 
Sophgo:
 
 The changes of this PR are all for CV18xx serials.
 There are three major changes. The first is to allow
 DMA multiplexer setting channel number for DMA controller;
 the second is to add initial RISC-V support for "Duo S"
 board, which uses SG2000, a dual-arch SoC (RISC-V and
 ARM64); the third is to add support for "Duo 256M"
 board, another dev-board based on SG2002 SoC.
 
 Signed-off-by: Chen Wang <chen.wang@linux.dev>
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Merge tag 'riscv-sophgo-dt-for-v7.3' of https://github.com/sophgo/linux into soc/dt

RISC-V Devicetrees for v7.3

Sophgo:

The changes of this PR are all for CV18xx serials.
There are three major changes. The first is to allow
DMA multiplexer setting channel number for DMA controller;
the second is to add initial RISC-V support for "Duo S"
board, which uses SG2000, a dual-arch SoC (RISC-V and
ARM64); the third is to add support for "Duo 256M"
board, another dev-board based on SG2002 SoC.

Signed-off-by: Chen Wang <chen.wang@linux.dev>

* tag 'riscv-sophgo-dt-for-v7.3' of https://github.com/sophgo/linux:
  riscv: dts: sophgo: Add Milk-V Duo 256M board support
  riscv: dts: sophgo: cv180x: Add PWR_GPIO controller
  dt-bindings: soc: sophgo: add Milk-V Duo 256M board
  riscv64: dts: sophgo: add initial Milk-V Duo S board support
  riscv64: dts: sophgo: add SG2000 dtsi
  riscv: dts: sophgo: cv180x: Allow the DMA multiplexer to set channel number for DMA controller

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2026-08-10 17:21:35 +02:00
commit 545ecc3577
6 changed files with 443 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
Documentation/devicetree/bindings/soc/sophgo/sophgo.yaml
View File

@ -35,6 +35,10 @@ properties:
- enum:
- milkv,duo-s
- const: sophgo,sg2000
- items:
- enum:
- milkv,duo256m
- const: sophgo,sg2002
- items:
- enum:
- sipeed,licheerv-nano-b

2
arch/riscv/boot/dts/sophgo/Makefile
View File

@ -1,7 +1,9 @@
# SPDX-License-Identifier: GPL-2.0
dtb-$(CONFIG_ARCH_SOPHGO) += cv1800b-milkv-duo.dtb
dtb-$(CONFIG_ARCH_SOPHGO) += cv1812h-huashan-pi.dtb
dtb-$(CONFIG_ARCH_SOPHGO) += sg2000-milkv-duo-s.dtb
dtb-$(CONFIG_ARCH_SOPHGO) += sg2002-licheerv-nano-b.dtb
dtb-$(CONFIG_ARCH_SOPHGO) += sg2002-milkv-duo256m.dtb
dtb-$(CONFIG_ARCH_SOPHGO) += sg2042-milkv-pioneer.dtb
dtb-$(CONFIG_ARCH_SOPHGO) += sg2042-evb-v1.dtb
dtb-$(CONFIG_ARCH_SOPHGO) += sg2042-evb-v2.dtb

20
arch/riscv/boot/dts/sophgo/cv180x.dtsi
View File

@ -417,7 +417,7 @@ sdhci1: mmc@4320000 {
};
dmac: dma-controller@4330000 {
compatible = "snps,axi-dma-1.01a";
compatible = "sophgo,cv1800b-axi-dma", "snps,axi-dma-1.01a";
reg = <0x04330000 0x1000>;
interrupts = <SOC_PERIPHERAL_IRQ(13) IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clk CLK_SDMA_AXI>, <&clk CLK_SDMA_AXI>;
@ -448,6 +448,24 @@ usb: usb@4340000 {
status = "disabled";
};
gpio4: gpio@5021000 {
compatible = "snps,dw-apb-gpio";
reg = <0x5021000 0x1000>;
#address-cells = <1>;
#size-cells = <0>;
porte: gpio-controller@0 {
compatible = "snps,dw-apb-gpio-port";
gpio-controller;
#gpio-cells = <2>;
ngpios = <32>;
reg = <0>;
interrupt-controller;
#interrupt-cells = <2>;
interrupts = <SOC_PERIPHERAL_IRQ(54) IRQ_TYPE_LEVEL_HIGH>;
};
};
rtc@5025000 {
compatible = "sophgo,cv1800b-rtc", "syscon";
reg = <0x5025000 0x2000>;

244
arch/riscv/boot/dts/sophgo/sg2000-milkv-duo-s.dts Normal file
View File

@ -0,0 +1,244 @@
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/dts-v1/;
#include <dt-bindings/pinctrl/pinctrl-sg2000.h>
#include "sg2000.dtsi"
/ {
model = "Milk-V Duo S";
compatible = "milkv,duo-s", "sophgo,sg2000";
aliases {
i2c4 = &i2c4;
mmc0 = &sdhci0;
mmc1 = &emmc;
mmc2 = &sdhci1;
serial0 = &uart0;
serial4 = &uart4;
};
chosen {
stdout-path = "serial0:115200n8";
};
wifi_pwrseq: wifi-pwrseq {
compatible = "mmc-pwrseq-simple";
reset-gpios = <&porta 15 GPIO_ACTIVE_LOW>;
power-off-delay-us = <50000>;
post-power-on-delay-ms = <200>;
};
};
&osc {
clock-frequency = <25000000>;
};
&pinctrl {
emmc_cfg: emmc-cfg {
emmc-rstn-pins {
pinmux = <PINMUX(PIN_EMMC_RSTN, 0)>;
bias-pull-up;
drive-strength-microamp = <10800>;
power-source = <1800>;
};
emmc-clk-pins {
pinmux = <PINMUX(PIN_EMMC_CLK, 0)>;
bias-pull-up;
drive-strength-microamp = <10800>;
power-source = <1800>;
};
emmc-cmd-pins {
pinmux = <PINMUX(PIN_EMMC_CMD, 0)>;
bias-pull-up;
drive-strength-microamp = <10800>;
power-source = <1800>;
};
emmc-data-pins {
pinmux = <PINMUX(PIN_EMMC_DAT0, 0)>,
<PINMUX(PIN_EMMC_DAT1, 0)>,
<PINMUX(PIN_EMMC_DAT2, 0)>,
<PINMUX(PIN_EMMC_DAT3, 0)>;
bias-pull-up;
drive-strength-microamp = <10800>;
power-source = <1800>;
};
};
i2c4_cfg: i2c4-cfg {
i2c4-pins {
pinmux = <PINMUX(PIN_VIVO_D1, 7)>,
<PINMUX(PIN_VIVO_D0, 7)>;
bias-pull-up;
drive-strength-microamp = <4000>;
power-source = <1800>;
};
};
sdhci0_cfg: sdhci0-cfg {
sdhci0-cd-pins {
pinmux = <PINMUX(PIN_SD0_CD, 0)>;
bias-pull-up;
drive-strength-microamp = <10800>;
power-source = <3300>;
};
sdhci0-clk-pins {
pinmux = <PINMUX(PIN_SD0_CLK, 0)>;
bias-pull-up;
drive-strength-microamp = <16100>;
power-source = <3300>;
};
sdhci0-cmd-pins {
pinmux = <PINMUX(PIN_SD0_CMD, 0)>;
bias-pull-up;
drive-strength-microamp = <10800>;
power-source = <3300>;
};
sdhci0-data-pins {
pinmux = <PINMUX(PIN_SD0_D0, 0)>,
<PINMUX(PIN_SD0_D1, 0)>,
<PINMUX(PIN_SD0_D2, 0)>,
<PINMUX(PIN_SD0_D3, 0)>;
bias-pull-up;
drive-strength-microamp = <10800>;
power-source = <3300>;
};
};
sdhci1_cfg: sdhci1-cfg {
sdhci1-clk-pins {
pinmux = <PINMUX(PIN_MIPI_TXM4, 1)>;
bias-pull-up;
drive-strength-microamp = <10800>;
power-source = <1800>;
};
sdhci1-cmd-pins {
pinmux = <PINMUX(PIN_MIPI_TXP4, 1)>;
bias-pull-up;
drive-strength-microamp = <10800>;
power-source = <1800>;
};
sdhci1-data-pins {
pinmux = <PINMUX(PIN_MIPI_TXM3, 1)>,
<PINMUX(PIN_MIPI_TXP3, 1)>,
<PINMUX(PIN_MIPI_TXM2, 7)>,
<PINMUX(PIN_MIPI_TXP2, 7)>;
bias-pull-up;
drive-strength-microamp = <10800>;
power-source = <1800>;
};
};
uart0_cfg: uart0-cfg {
uart0-pins {
pinmux = <PINMUX(PIN_UART0_TX, 0)>,
<PINMUX(PIN_UART0_RX, 0)>;
bias-pull-up;
drive-strength-microamp = <10800>;
power-source = <3300>;
};
};
uart4_cfg: uart4-cfg {
uart4-data-pins {
pinmux = <PINMUX(PIN_UART2_TX, 5)>,
<PINMUX(PIN_UART2_RX, 5)>;
drive-strength-microamp = <10800>;
power-source = <3300>;
};
uart4-control-pins {
pinmux = <PINMUX(PIN_UART2_CTS, 5)>,
<PINMUX(PIN_UART2_RTS, 5)>;
bias-pull-up;
drive-strength-microamp = <10800>;
power-source = <3300>;
};
};
};
&dmac {
status = "okay";
};
&emmc {
bus-width = <4>;
no-1-8-v;
cap-mmc-hw-reset;
no-sd;
no-sdio;
non-removable;
pinctrl-0 = <&emmc_cfg>;
pinctrl-names = "default";
status = "okay";
};
&gmac0 {
status = "okay";
};
&i2c4 {
pinctrl-0 = <&i2c4_cfg>;
pinctrl-names = "default";
status = "okay";
};
&mdio {
status = "okay";
};
&saradc {
status = "okay";
};
&sdhci0 {
bus-width = <4>;
disable-wp;
no-1-8-v;
pinctrl-0 = <&sdhci0_cfg>;
pinctrl-names = "default";
status = "okay";
};
&sdhci1 {
bus-width = <4>;
cap-sdio-irq;
cap-sd-highspeed;
keep-power-in-suspend;
no-mmc;
no-sd;
non-removable;
max-frequency = <150000000>;
mmc-pwrseq = <&wifi_pwrseq>;
pinctrl-0 = <&sdhci1_cfg>;
pinctrl-names = "default";
sd-uhs-sdr50;
sd-uhs-sdr104;
status = "okay";
};
&uart0 {
pinctrl-0 = <&uart0_cfg>;
pinctrl-names = "default";
status = "okay";
};
&uart4 {
pinctrl-0 = <&uart4_cfg>;
pinctrl-names = "default";
uart-has-rtscts;
status = "okay";
};
&usb {
dr_mode = "host";
status = "okay";
};

53
arch/riscv/boot/dts/sophgo/sg2000.dtsi Normal file
View File

@ -0,0 +1,53 @@
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
#define SOC_PERIPHERAL_IRQ(nr) ((nr) + 16)
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/pinctrl/pinctrl-sg2000.h>
#include "cv180x-cpus.dtsi"
#include "cv180x.dtsi"
#include "cv181x.dtsi"
/ {
compatible = "sophgo,sg2000";
memory@80000000 {
device_type = "memory";
reg = <0x80000000 0x20000000>;
};
soc {
interrupt-parent = <&plic>;
dma-noncoherent;
pinctrl: pinctrl@3001000 {
compatible = "sophgo,sg2000-pinctrl";
reg = <0x03001000 0x1000>,
<0x05027000 0x1000>;
reg-names = "sys", "rtc";
};
clk: clock-controller@3002000 {
compatible = "sophgo,sg2000-clk";
reg = <0x03002000 0x1000>;
clocks = <&osc>;
#clock-cells = <1>;
};
plic: interrupt-controller@70000000 {
compatible = "sophgo,sg2000-plic", "thead,c900-plic";
reg = <0x70000000 0x4000000>;
interrupts-extended = <&cpu0_intc 11>, <&cpu0_intc 9>;
interrupt-controller;
#address-cells = <0>;
#interrupt-cells = <2>;
riscv,ndev = <101>;
};
clint: timer@74000000 {
compatible = "sophgo,sg2000-clint", "thead,c900-clint";
reg = <0x74000000 0x10000>;
interrupts-extended = <&cpu0_intc 3>, <&cpu0_intc 7>;
};
};
};

121
arch/riscv/boot/dts/sophgo/sg2002-milkv-duo256m.dts Normal file
View File

@ -0,0 +1,121 @@
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/*
* Copyright (C) 2023 Jisheng Zhang <jszhang@kernel.org>
* Copyright (C) 2026 Chen-Yu Yeh <chenyou910331@gmail.com>
*/
/dts-v1/;
#include "sg2002.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/leds/common.h>
/ {
model = "Milk-V Duo 256M";
compatible = "milkv,duo256m", "sophgo,sg2002";
aliases {
serial0 = &uart0;
serial1 = &uart1;
serial2 = &uart2;
serial3 = &uart3;
serial4 = &uart4;
};
chosen {
stdout-path = "serial0:115200n8";
};
leds {
compatible = "gpio-leds";
led-0 {
gpios = <&porte 2 GPIO_ACTIVE_HIGH>;
color = <LED_COLOR_ID_BLUE>;
function = LED_FUNCTION_STATUS;
linux,default-trigger = "heartbeat";
};
};
reserved-memory {
#address-cells = <1>;
#size-cells = <1>;
ranges;
coprocessor_rtos: region@8fe00000 {
reg = <0x8fe00000 0x200000>;
no-map;
};
};
};
&osc {
clock-frequency = <25000000>;
};
&pinctrl {
uart0_cfg: uart0-cfg {
uart0-pins {
pinmux = <PINMUX(PIN_UART0_TX, 0)>,
<PINMUX(PIN_UART0_RX, 0)>;
bias-pull-up;
drive-strength-microamp = <10800>;
power-source = <3300>;
};
};
sdhci0_cfg: sdhci0-cfg {
sdhci0-clk-pins {
pinmux = <PINMUX(PIN_SD0_CLK, 0)>;
bias-pull-up;
drive-strength-microamp = <16100>;
power-source = <3300>;
};
sdhci0-cmd-pins {
pinmux = <PINMUX(PIN_SD0_CMD, 0)>;
bias-pull-up;
drive-strength-microamp = <10800>;
power-source = <3300>;
};
sdhci0-data-pins {
pinmux = <PINMUX(PIN_SD0_D0, 0)>,
<PINMUX(PIN_SD0_D1, 0)>,
<PINMUX(PIN_SD0_D2, 0)>,
<PINMUX(PIN_SD0_D3, 0)>;
bias-pull-up;
drive-strength-microamp = <10800>;
power-source = <3300>;
};
sdhci0-cd-pins {
pinmux = <PINMUX(PIN_SD0_CD, 0)>;
bias-pull-up;
drive-strength-microamp = <10800>;
power-source = <3300>;
};
};
};
&sdhci0 {
pinctrl-0 = <&sdhci0_cfg>;
pinctrl-names = "default";
status = "okay";
bus-width = <4>;
no-1-8-v;
no-mmc;
no-sdio;
disable-wp;
};
&uart0 {
pinctrl-0 = <&uart0_cfg>;
pinctrl-names = "default";
status = "okay";
};
&usb {
dr_mode = "host";
status = "okay";
};