Enable the SDIO controller interface connected to the on-board
AP6256 WiFi/BT module.

Signed-off-by: Nick Xie <nick@khadas.com>
---
Changes in v2:
- Dropped 'amlogic,dram-access-quirk' property as it is not required for S905Y4.
- Updated compatible string to specific "brcm,bcm43456-fmac".
- Link to v1: https://lore.kernel.org/all/20260116023900.2036657-1-nick@khadas.com/

 .../amlogic/meson-s4-s905y4-khadas-vim1s.dts  | 27 +++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts b/arch/arm64/boot/dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts
index 4a66c1bec965e..27d0f6134ea9d 100644
--- a/arch/arm64/boot/dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts
@@ -220,6 +220,33 @@ &sd {
 	vqmmc-supply = <&vddio_sd>;
 };
 
+&sdio {
+	status = "okay";
+	pinctrl-0 = <&sdio_pins>;
+	pinctrl-1 = <&sdio_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
+	#address-cells = <1>;
+	#size-cells = <0>;
+	bus-width = <4>;
+	cap-sd-highspeed;
+	sd-uhs-sdr50;
+	sd-uhs-sdr104;
+	max-frequency = <50000000>;
+	non-removable;
+	disable-wp;
+
+	no-sd;
+	no-mmc;
+	mmc-pwrseq = <&sdio_pwrseq>;
+	vmmc-supply = <&vddao_3v3>;
+	vqmmc-supply = <&vddio_ao1v8>;
+
+	brcmf: wifi@1 {
+		reg = <1>;
+		compatible = "brcm,bcm43456-fmac", "brcm,bcm4329-fmac";
+	};
+};
+
 &spicc0 {
 	status = "okay";
 	pinctrl-names = "default";
-- 
2.34.1

Hi,

On Wed, 21 Jan 2026 09:47:25 +0800, Nick Xie wrote:
> Enable the SDIO controller interface connected to the on-board
> AP6256 WiFi/BT module.
> 
> 

Thanks, Applied to https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux.git (v6.20/arm64-dt)

[1/1] arm64: dts: amlogic: meson-s4-s905y4-khadas-vim1s: enable SDIO interface
      https://git.kernel.org/amlogic/c/854583f9992671411bad28bd8a3867afba7cce77

These changes has been applied on the intermediate git tree [1].

The v6.20/arm64-dt branch will then be sent via a formal Pull Request to the Linux SoC maintainers
for inclusion in their intermediate git branches in order to be sent to Linus during
the next merge window, or sooner if it's a set of fixes.

In the cases of fixes, those will be merged in the current release candidate
kernel and as soon they appear on the Linux master branch they will be
backported to the previous Stable and Long-Stable kernels [2].

The intermediate git branches are merged daily in the linux-next tree [3],
people are encouraged testing these pre-release kernels and report issues on the
relevant mailing-lists.

If problems are discovered on those changes, please submit a signed-off-by revert
patch followed by a corrective changeset.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux.git
[2] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
[3] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git

-- 
Neil

On 1/21/26 02:47, Nick Xie wrote:
> Enable the SDIO controller interface connected to the on-board
> AP6256 WiFi/BT module.
> 
> Signed-off-by: Nick Xie <nick@khadas.com>
> ---
> Changes in v2:
> - Dropped 'amlogic,dram-access-quirk' property as it is not required for S905Y4.
> - Updated compatible string to specific "brcm,bcm43456-fmac".
> - Link to v1: https://lore.kernel.org/all/20260116023900.2036657-1-nick@khadas.com/
> 
>   .../amlogic/meson-s4-s905y4-khadas-vim1s.dts  | 27 +++++++++++++++++++
>   1 file changed, 27 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts b/arch/arm64/boot/dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts
> index 4a66c1bec965e..27d0f6134ea9d 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts
> +++ b/arch/arm64/boot/dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts
> @@ -220,6 +220,33 @@ &sd {
>   	vqmmc-supply = <&vddio_sd>;
>   };
>   
> +&sdio {
> +	status = "okay";
> +	pinctrl-0 = <&sdio_pins>;
> +	pinctrl-1 = <&sdio_clk_gate_pins>;
> +	pinctrl-names = "default", "clk-gate";
> +	#address-cells = <1>;
> +	#size-cells = <0>;
> +	bus-width = <4>;
> +	cap-sd-highspeed;
> +	sd-uhs-sdr50;
> +	sd-uhs-sdr104;
> +	max-frequency = <50000000>;
> +	non-removable;
> +	disable-wp;
> +
> +	no-sd;
> +	no-mmc;
> +	mmc-pwrseq = <&sdio_pwrseq>;
> +	vmmc-supply = <&vddao_3v3>;
> +	vqmmc-supply = <&vddio_ao1v8>;
> +
> +	brcmf: wifi@1 {
> +		reg = <1>;
> +		compatible = "brcm,bcm43456-fmac", "brcm,bcm4329-fmac";
> +	};
> +};
> +
>   &spicc0 {
>   	status = "okay";
>   	pinctrl-names = "default";

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>

Thanks,
Neil