[PATCH v2 4/5] riscv: dts: spacemit: enable SD card support on Milk-V Jupiter

[Junhui Liu]

Hi Aurelien,
Thanks for your work.

On Tue May 19, 2026 at 12:12 PM CST, Aurelien Jarno wrote:
> Add complete SD card controller support with UHS high-speed modes.
>
> - Enable sdhci0 controller with 4-bit bus width
> - Configure card detect GPIO with pull-up
> - Connect vmmc-supply to buck4 for 3.3V card power
> - Connect vqmmc-supply to aldo1 for 1.8V/3.3V I/O switching
> - Add dual pinctrl states for voltage-dependent pin configuration
> - Support UHS-I SDR25, SDR50, and SDR104 modes
> - Alias it as mmc1
>
> Signed-off-by: Aurelien Jarno <aurelien at aurel32.net>

Both UHS-I and standard high-speed cards are tested successfully.

Tested-by: Junhui Liu <junhui.liu at pigmoral.tech>

-- 
Best regards,
Junhui Liu