[PATCH 3/3] riscv: dts: sophgo: sg2044: Add eFUSE device

[Chen Wang]

On 10/14/2026 3:45 PM, Inochi Amaoto wrote:
> Add eFUSE controller node for SG2044.
>
> Signed-off-by: Inochi Amaoto <inochiama at gmail.com>
> ---
>   arch/riscv/boot/dts/sophgo/sg2044-sophgo-srd3-10.dts |  4 ++++
>   arch/riscv/boot/dts/sophgo/sg2044.dtsi               | 12 ++++++++++++
>   drivers/nvmem/sophgo-efuse.c                         |  1 +
>   3 files changed, 17 insertions(+)
>
> diff --git a/arch/riscv/boot/dts/sophgo/sg2044-sophgo-srd3-10.dts b/arch/riscv/boot/dts/sophgo/sg2044-sophgo-srd3-10.dts
> index fed3d9a384a0..1b506972d465 100644
> --- a/arch/riscv/boot/dts/sophgo/sg2044-sophgo-srd3-10.dts
> +++ b/arch/riscv/boot/dts/sophgo/sg2044-sophgo-srd3-10.dts
> @@ -36,6 +36,10 @@ &emmc {
>   	status = "okay";
>   };
>   
> +&efuse0 {
> +	status = "okay";
> +};
> +
>   &gmac0 {
>   	phy-handle = <&phy0>;
>   	phy-mode = "rgmii-id";
> diff --git a/arch/riscv/boot/dts/sophgo/sg2044.dtsi b/arch/riscv/boot/dts/sophgo/sg2044.dtsi
> index 320c4d1d08e6..9577aae08f7f 100644
> --- a/arch/riscv/boot/dts/sophgo/sg2044.dtsi
> +++ b/arch/riscv/boot/dts/sophgo/sg2044.dtsi
> @@ -408,6 +408,18 @@ sd: mmc at 703000b000 {
>   			status = "disabled";
>   		};
>   
> +		efuse0: efuse at 7040000000 {
> +			compatible = "sophgo,sg2044-efuse";
> +			reg = <0x70 0x40000000 0x0 0x1000>;
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +			clocks = <&clk CLK_GATE_EFUSE>,
> +				 <&clk CLK_GATE_APB_EFUSE>;
> +			clock-names = "core", "apb";
> +			resets = <&rst RST_EFUSE0>;
> +			status = "disabled";
> +		};
> +
>   		i2c0: i2c at 7040005000 {
>   			compatible = "sophgo,sg2044-i2c", "snps,designware-i2c";
>   			reg = <0x70 0x40005000 0x0 0x1000>;
> diff --git a/drivers/nvmem/sophgo-efuse.c b/drivers/nvmem/sophgo-efuse.c
> index 5f90adaf8e4f..568d17b88ff6 100644
> --- a/drivers/nvmem/sophgo-efuse.c
> +++ b/drivers/nvmem/sophgo-efuse.c
> @@ -14,6 +14,7 @@
>   #include <linux/mutex.h>
>   #include <linux/nvmem-provider.h>
>   #include <linux/platform_device.h>
> +#include <linux/slab.h>
>   
>   #define SG2044_EFUSE_CONTENT_SIZE		0x400

This change is not related to DTS, should it be in patch [2/3]?