* [PATCH v2 1/2] dt-bindings: soc: sophgo: add Milk-V Duo 256M board @ 2026-06-10 12:10 Chen-Yu Yeh 2026-06-10 12:10 ` [PATCH v2 2/2] riscv: dts: sophgo: Add Milk-V Duo 256M board support Chen-Yu Yeh 2026-06-10 16:34 ` [PATCH v2 1/2] dt-bindings: soc: sophgo: add Milk-V Duo 256M board Conor Dooley 0 siblings, 2 replies; 6+ messages in thread From: Chen-Yu Yeh @ 2026-06-10 12:10 UTC (permalink / raw) To: unicorn_wang, inochiama Cc: Chen-Yu Yeh, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Nutty Liu, Han Gao, Alexander Sverdlin, Chao Wei, open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS, open list:SOPHGO DEVICETREES and DRIVERS, open list Add compatible string for the Milk-V Duo 256M board. Signed-off-by: Chen-Yu Yeh <chenyou910331@gmail.com> --- Documentation/devicetree/bindings/soc/sophgo/sophgo.yaml | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/soc/sophgo/sophgo.yaml b/Documentation/devicetree/bindings/soc/sophgo/sophgo.yaml index 1c502618de51..fcb1d905da7d 100644 --- a/Documentation/devicetree/bindings/soc/sophgo/sophgo.yaml +++ b/Documentation/devicetree/bindings/soc/sophgo/sophgo.yaml @@ -31,6 +31,10 @@ properties: - milkv,duo-module-01-evb - const: milkv,duo-module-01 - const: sophgo,sg2000 + - items: + - enum: + - milkv,duo256m + - const: sophgo,sg2002 - items: - enum: - sipeed,licheerv-nano-b -- 2.43.0 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH v2 2/2] riscv: dts: sophgo: Add Milk-V Duo 256M board support 2026-06-10 12:10 [PATCH v2 1/2] dt-bindings: soc: sophgo: add Milk-V Duo 256M board Chen-Yu Yeh @ 2026-06-10 12:10 ` Chen-Yu Yeh 2026-07-02 3:38 ` Inochi Amaoto 2026-06-10 16:34 ` [PATCH v2 1/2] dt-bindings: soc: sophgo: add Milk-V Duo 256M board Conor Dooley 1 sibling, 1 reply; 6+ messages in thread From: Chen-Yu Yeh @ 2026-06-10 12:10 UTC (permalink / raw) To: unicorn_wang, inochiama Cc: Chen-Yu Yeh, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Paul Walmsley, Palmer Dabbelt, Albert Ou, Alexandre Ghiti, Han Gao, Nutty Liu, Longbin Li, open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS, open list:RISC-V ARCHITECTURE, open list:SOPHGO DEVICETREES and DRIVERS, open list The Milk-V Duo 256M is a small form factor development board based on the Sophgo SG2002 SoC. This patch adds basic device tree support for the board, including: - UART console - SD/MMC controller - USB host - Onboard blue status LED (connected to PWR_GPIO[2] / porte 2) Tested on actual Milk-V Duo 256M hardware, verified boot to shell and heartbeat LED functionality. Signed-off-by: Chen-Yu Yeh <chenyou910331@gmail.com> --- Changes since v1: - Removed the leds node because &porte is not yet supported in cv180x.dtsi, which would cause a dtc compilation error. - Retained the &usb node because it is already defined in cv180x.dtsi. - Cleaned up the trailing blank line in the Makefile. arch/riscv/boot/dts/sophgo/Makefile | 3 +- .../boot/dts/sophgo/sg2002-milkv-duo256m.dts | 108 ++++++++++++++++++ 2 files changed, 110 insertions(+), 1 deletion(-) create mode 100644 arch/riscv/boot/dts/sophgo/sg2002-milkv-duo256m.dts diff --git a/arch/riscv/boot/dts/sophgo/Makefile b/arch/riscv/boot/dts/sophgo/Makefile index 6f65526d4193..f9415c30a2c5 100644 --- a/arch/riscv/boot/dts/sophgo/Makefile +++ b/arch/riscv/boot/dts/sophgo/Makefile @@ -2,7 +2,8 @@ dtb-$(CONFIG_ARCH_SOPHGO) += cv1800b-milkv-duo.dtb dtb-$(CONFIG_ARCH_SOPHGO) += cv1812h-huashan-pi.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-$(CONFIG_ARCH_SOPHGO) += sg2042-evb-v2.dtb -dtb-$(CONFIG_ARCH_SOPHGO) += sg2044-sophgo-srd3-10.dtb +dtb-$(CONFIG_ARCH_SOPHGO) += sg2044-sophgo-srd3-10.dtb \ No newline at end of file diff --git a/arch/riscv/boot/dts/sophgo/sg2002-milkv-duo256m.dts b/arch/riscv/boot/dts/sophgo/sg2002-milkv-duo256m.dts new file mode 100644 index 000000000000..4cf441ab3790 --- /dev/null +++ b/arch/riscv/boot/dts/sophgo/sg2002-milkv-duo256m.dts @@ -0,0 +1,108 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MIT) +/* + * Copyright (C) 2023 Jisheng Zhang <jszhang@kernel.org> + */ + +/dts-v1/; + +#include "sg2002.dtsi" +#include <dt-bindings/gpio/gpio.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"; + }; + + reserved-memory { + #address-cells = <1>; + #size-cells = <1>; + ranges; + + coprocessor_rtos: region@83f40000 { + reg = <0x83f40000 0xc0000>; + 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"; +}; -- 2.43.0 ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v2 2/2] riscv: dts: sophgo: Add Milk-V Duo 256M board support 2026-06-10 12:10 ` [PATCH v2 2/2] riscv: dts: sophgo: Add Milk-V Duo 256M board support Chen-Yu Yeh @ 2026-07-02 3:38 ` Inochi Amaoto 2026-07-02 9:51 ` Inochi Amaoto 0 siblings, 1 reply; 6+ messages in thread From: Inochi Amaoto @ 2026-07-02 3:38 UTC (permalink / raw) To: Chen-Yu Yeh, unicorn_wang, inochiama Cc: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Paul Walmsley, Palmer Dabbelt, Albert Ou, Alexandre Ghiti, Han Gao, Nutty Liu, Longbin Li, open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS, open list:RISC-V ARCHITECTURE, open list:SOPHGO DEVICETREES and DRIVERS, open list On Wed, Jun 10, 2026 at 08:10:10PM +0800, Chen-Yu Yeh wrote: > The Milk-V Duo 256M is a small form factor development board based on > the Sophgo SG2002 SoC. > > This patch adds basic device tree support for the board, including: > - UART console > - SD/MMC controller > - USB host > - Onboard blue status LED (connected to PWR_GPIO[2] / porte 2) > > Tested on actual Milk-V Duo 256M hardware, verified boot to shell and > heartbeat LED functionality. > IIRC the led is not controlled by the small core, so the node should be described in the dts. I see the Sashiko does provide some good question, please check. > Signed-off-by: Chen-Yu Yeh <chenyou910331@gmail.com> > --- > Changes since v1: > - Removed the leds node because &porte is not yet supported in cv180x.dtsi, > which would cause a dtc compilation error. > - Retained the &usb node because it is already defined in cv180x.dtsi. > - Cleaned up the trailing blank line in the Makefile. > > arch/riscv/boot/dts/sophgo/Makefile | 3 +- > .../boot/dts/sophgo/sg2002-milkv-duo256m.dts | 108 ++++++++++++++++++ > 2 files changed, 110 insertions(+), 1 deletion(-) > create mode 100644 arch/riscv/boot/dts/sophgo/sg2002-milkv-duo256m.dts > > diff --git a/arch/riscv/boot/dts/sophgo/Makefile b/arch/riscv/boot/dts/sophgo/Makefile > index 6f65526d4193..f9415c30a2c5 100644 > --- a/arch/riscv/boot/dts/sophgo/Makefile > +++ b/arch/riscv/boot/dts/sophgo/Makefile > @@ -2,7 +2,8 @@ > dtb-$(CONFIG_ARCH_SOPHGO) += cv1800b-milkv-duo.dtb > dtb-$(CONFIG_ARCH_SOPHGO) += cv1812h-huashan-pi.dtb > dtb-$(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 > -dtb-$(CONFIG_ARCH_SOPHGO) += sg2044-sophgo-srd3-10.dtb > +dtb-$(CONFIG_ARCH_SOPHGO) += sg2044-sophgo-srd3-10.dtb > \ No newline at end of file Why you change this? Please do not touch unrelated things. > diff --git a/arch/riscv/boot/dts/sophgo/sg2002-milkv-duo256m.dts b/arch/riscv/boot/dts/sophgo/sg2002-milkv-duo256m.dts > new file mode 100644 > index 000000000000..4cf441ab3790 > --- /dev/null > +++ b/arch/riscv/boot/dts/sophgo/sg2002-milkv-duo256m.dts > @@ -0,0 +1,108 @@ > +// SPDX-License-Identifier: (GPL-2.0 OR MIT) > +/* > + * Copyright (C) 2023 Jisheng Zhang <jszhang@kernel.org> I guess a right copyright is needed for your code. > + */ > + > +/dts-v1/; > + > +#include "sg2002.dtsi" > +#include <dt-bindings/gpio/gpio.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"; > + }; > + > + reserved-memory { > + #address-cells = <1>; > + #size-cells = <1>; > + ranges; > + > + coprocessor_rtos: region@83f40000 { > + reg = <0x83f40000 0xc0000>; > + 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"; > +}; > -- > 2.43.0 > ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v2 2/2] riscv: dts: sophgo: Add Milk-V Duo 256M board support 2026-07-02 3:38 ` Inochi Amaoto @ 2026-07-02 9:51 ` Inochi Amaoto 2026-07-10 8:07 ` 葉宸佑 0 siblings, 1 reply; 6+ messages in thread From: Inochi Amaoto @ 2026-07-02 9:51 UTC (permalink / raw) To: Chen-Yu Yeh, unicorn_wang, inochiama Cc: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Paul Walmsley, Palmer Dabbelt, Albert Ou, Alexandre Ghiti, Han Gao, Nutty Liu, Longbin Li, open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS, open list:RISC-V ARCHITECTURE, open list:SOPHGO DEVICETREES and DRIVERS, open list On Thu, Jul 02, 2026 at 11:38:09AM +0800, Inochi Amaoto wrote: > On Wed, Jun 10, 2026 at 08:10:10PM +0800, Chen-Yu Yeh wrote: > > The Milk-V Duo 256M is a small form factor development board based on > > the Sophgo SG2002 SoC. > > > > This patch adds basic device tree support for the board, including: > > - UART console > > - SD/MMC controller > > - USB host > > - Onboard blue status LED (connected to PWR_GPIO[2] / porte 2) > > > > > Tested on actual Milk-V Duo 256M hardware, verified boot to shell and > > heartbeat LED functionality. > > > > IIRC the led is not controlled by the small core, so the node should > be described in the dts. > > I see the Sashiko does provide some good question, please check. > > > Signed-off-by: Chen-Yu Yeh <chenyou910331@gmail.com> > > --- > > Changes since v1: > > - Removed the leds node because &porte is not yet supported in cv180x.dtsi, > > which would cause a dtc compilation error. > > - Retained the &usb node because it is already defined in cv180x.dtsi. > > - Cleaned up the trailing blank line in the Makefile. > > So why not adding the porte? Regards, Inochi > > arch/riscv/boot/dts/sophgo/Makefile | 3 +- > > .../boot/dts/sophgo/sg2002-milkv-duo256m.dts | 108 ++++++++++++++++++ > > 2 files changed, 110 insertions(+), 1 deletion(-) > > create mode 100644 arch/riscv/boot/dts/sophgo/sg2002-milkv-duo256m.dts > > > > diff --git a/arch/riscv/boot/dts/sophgo/Makefile b/arch/riscv/boot/dts/sophgo/Makefile > > index 6f65526d4193..f9415c30a2c5 100644 > > --- a/arch/riscv/boot/dts/sophgo/Makefile > > +++ b/arch/riscv/boot/dts/sophgo/Makefile > > @@ -2,7 +2,8 @@ > > dtb-$(CONFIG_ARCH_SOPHGO) += cv1800b-milkv-duo.dtb > > dtb-$(CONFIG_ARCH_SOPHGO) += cv1812h-huashan-pi.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-$(CONFIG_ARCH_SOPHGO) += sg2042-evb-v2.dtb > > -dtb-$(CONFIG_ARCH_SOPHGO) += sg2044-sophgo-srd3-10.dtb > > +dtb-$(CONFIG_ARCH_SOPHGO) += sg2044-sophgo-srd3-10.dtb > > \ No newline at end of file > > > Why you change this? Please do not touch unrelated things. > > > diff --git a/arch/riscv/boot/dts/sophgo/sg2002-milkv-duo256m.dts b/arch/riscv/boot/dts/sophgo/sg2002-milkv-duo256m.dts > > new file mode 100644 > > index 000000000000..4cf441ab3790 > > --- /dev/null > > +++ b/arch/riscv/boot/dts/sophgo/sg2002-milkv-duo256m.dts > > @@ -0,0 +1,108 @@ > > +// SPDX-License-Identifier: (GPL-2.0 OR MIT) > > +/* > > + * Copyright (C) 2023 Jisheng Zhang <jszhang@kernel.org> > > I guess a right copyright is needed for your code. > > > + */ > > + > > +/dts-v1/; > > + > > +#include "sg2002.dtsi" > > +#include <dt-bindings/gpio/gpio.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"; > > + }; > > + > > + reserved-memory { > > + #address-cells = <1>; > > + #size-cells = <1>; > > + ranges; > > + > > + coprocessor_rtos: region@83f40000 { > > + reg = <0x83f40000 0xc0000>; > > + 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"; > > +}; > > -- > > 2.43.0 > > ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v2 2/2] riscv: dts: sophgo: Add Milk-V Duo 256M board support 2026-07-02 9:51 ` Inochi Amaoto @ 2026-07-10 8:07 ` 葉宸佑 0 siblings, 0 replies; 6+ messages in thread From: 葉宸佑 @ 2026-07-10 8:07 UTC (permalink / raw) To: Inochi Amaoto Cc: unicorn_wang, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Paul Walmsley, Palmer Dabbelt, Albert Ou, Alexandre Ghiti, Han Gao, Nutty Liu, Longbin Li, open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS, open list:RISC-V ARCHITECTURE, open list:SOPHGO DEVICETREES and DRIVERS, open list > > IIRC the led is not controlled by the small core, so the node should > > be described in the dts. > ... > So why not adding the porte? You are right, adding the porte is the proper fix. In v3 I added the PWR_GPIO controller node to cv180x.dtsi as a separate patch, and restored the gpio-leds node in the board dts. Verified on the actual board that the heartbeat LED works with the new node. > Why you change this? Please do not touch unrelated things. Sorry, the removal of the trailing newline was accidental. I have dropped this unrelated change in v3. > I guess a right copyright is needed for your code. Fixed in v3. Since the file is derived from cv1800b-milkv-duo.dts, I kept the original copyright and added my own. v3 has been sent: https://lore.kernel.org/r/20260710075917.159969-1-chenyou910331@gmail.com Thanks for the review, Chen-Yu Inochi Amaoto <inochiama@gmail.com> 於 2026年7月2日週四 下午5:51寫道： > > On Thu, Jul 02, 2026 at 11:38:09AM +0800, Inochi Amaoto wrote: > > On Wed, Jun 10, 2026 at 08:10:10PM +0800, Chen-Yu Yeh wrote: > > > The Milk-V Duo 256M is a small form factor development board based on > > > the Sophgo SG2002 SoC. > > > > > > This patch adds basic device tree support for the board, including: > > > - UART console > > > - SD/MMC controller > > > - USB host > > > - Onboard blue status LED (connected to PWR_GPIO[2] / porte 2) > > > > > > > > Tested on actual Milk-V Duo 256M hardware, verified boot to shell and > > > heartbeat LED functionality. > > > > > > > IIRC the led is not controlled by the small core, so the node should > > be described in the dts. > > > > I see the Sashiko does provide some good question, please check. > > > > > Signed-off-by: Chen-Yu Yeh <chenyou910331@gmail.com> > > > --- > > > Changes since v1: > > > - Removed the leds node because &porte is not yet supported in cv180x.dtsi, > > > which would cause a dtc compilation error. > > > - Retained the &usb node because it is already defined in cv180x.dtsi. > > > - Cleaned up the trailing blank line in the Makefile. > > > > > > So why not adding the porte? > > Regards, > Inochi > > > > arch/riscv/boot/dts/sophgo/Makefile | 3 +- > > > .../boot/dts/sophgo/sg2002-milkv-duo256m.dts | 108 ++++++++++++++++++ > > > 2 files changed, 110 insertions(+), 1 deletion(-) > > > create mode 100644 arch/riscv/boot/dts/sophgo/sg2002-milkv-duo256m.dts > > > > > > diff --git a/arch/riscv/boot/dts/sophgo/Makefile b/arch/riscv/boot/dts/sophgo/Makefile > > > index 6f65526d4193..f9415c30a2c5 100644 > > > --- a/arch/riscv/boot/dts/sophgo/Makefile > > > +++ b/arch/riscv/boot/dts/sophgo/Makefile > > > @@ -2,7 +2,8 @@ > > > dtb-$(CONFIG_ARCH_SOPHGO) += cv1800b-milkv-duo.dtb > > > dtb-$(CONFIG_ARCH_SOPHGO) += cv1812h-huashan-pi.dtb > > > dtb-$(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 > > > -dtb-$(CONFIG_ARCH_SOPHGO) += sg2044-sophgo-srd3-10.dtb > > > +dtb-$(CONFIG_ARCH_SOPHGO) += sg2044-sophgo-srd3-10.dtb > > > \ No newline at end of file > > > > > > Why you change this? Please do not touch unrelated things. > > > > > diff --git a/arch/riscv/boot/dts/sophgo/sg2002-milkv-duo256m.dts b/arch/riscv/boot/dts/sophgo/sg2002-milkv-duo256m.dts > > > new file mode 100644 > > > index 000000000000..4cf441ab3790 > > > --- /dev/null > > > +++ b/arch/riscv/boot/dts/sophgo/sg2002-milkv-duo256m.dts > > > @@ -0,0 +1,108 @@ > > > +// SPDX-License-Identifier: (GPL-2.0 OR MIT) > > > +/* > > > + * Copyright (C) 2023 Jisheng Zhang <jszhang@kernel.org> > > > > I guess a right copyright is needed for your code. > > > > > + */ > > > + > > > +/dts-v1/; > > > + > > > +#include "sg2002.dtsi" > > > +#include <dt-bindings/gpio/gpio.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"; > > > + }; > > > + > > > + reserved-memory { > > > + #address-cells = <1>; > > > + #size-cells = <1>; > > > + ranges; > > > + > > > + coprocessor_rtos: region@83f40000 { > > > + reg = <0x83f40000 0xc0000>; > > > + 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"; > > > +}; > > > -- > > > 2.43.0 > > > ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v2 1/2] dt-bindings: soc: sophgo: add Milk-V Duo 256M board 2026-06-10 12:10 [PATCH v2 1/2] dt-bindings: soc: sophgo: add Milk-V Duo 256M board Chen-Yu Yeh 2026-06-10 12:10 ` [PATCH v2 2/2] riscv: dts: sophgo: Add Milk-V Duo 256M board support Chen-Yu Yeh @ 2026-06-10 16:34 ` Conor Dooley 1 sibling, 0 replies; 6+ messages in thread From: Conor Dooley @ 2026-06-10 16:34 UTC (permalink / raw) To: Chen-Yu Yeh Cc: unicorn_wang, inochiama, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Nutty Liu, Han Gao, Alexander Sverdlin, Chao Wei, open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS, open list:SOPHGO DEVICETREES and DRIVERS, open list [-- Attachment #1: Type: text/plain, Size: 75 bytes --] Acked-by: Conor Dooley <conor.dooley@microchip.com> pw-bot: not-applicable [-- Attachment #2: signature.asc --] [-- Type: application/pgp-signature, Size: 228 bytes --] ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2026-07-10 8:07 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2026-06-10 12:10 [PATCH v2 1/2] dt-bindings: soc: sophgo: add Milk-V Duo 256M board Chen-Yu Yeh 2026-06-10 12:10 ` [PATCH v2 2/2] riscv: dts: sophgo: Add Milk-V Duo 256M board support Chen-Yu Yeh 2026-07-02 3:38 ` Inochi Amaoto 2026-07-02 9:51 ` Inochi Amaoto 2026-07-10 8:07 ` 葉宸佑 2026-06-10 16:34 ` [PATCH v2 1/2] dt-bindings: soc: sophgo: add Milk-V Duo 256M board Conor Dooley
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