[PATCH v2 2/2] riscv: dts: thead: Enable WiFi on Lichee Pi 4A

Drew Fustini fustini at kernel.org
Wed May 27 06:19:23 PDT 2026


On Fri, May 08, 2026 at 07:44:14PM +0800, MoeLeak wrote:
> The Lichee Pi 4A has an RTL8723DS WiFi module connected to the TH1520
> SDIO1 controller. The module reset line is driven through a PCA9557 GPIO
> expander on the I2C1 bus.
> 
> Enable I2C1 for the GPIO expander and configure SDIO1 as a non-removable
> 4-bit SDIO bus using an mmc-pwrseq-simple reset sequence so the WiFi
> device can be powered and enumerated.
> 
> Signed-off-by: MoeLeak <i at leak.moe>
> ---
>  arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts | 47 +++++++++++++++++++++++
>  1 file changed, 47 insertions(+)

Reviewed-by: Drew Fustini <fustini at kernel.org>

Thanks for fixing up previous revision.

Drew



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