[PATCH v2] arm64: dts: amlogic: meson-s4-s905y4-khadas-vim1s: enable SDIO interface

Nick Xie nick at khadas.com
Tue Jan 20 17:47:25 PST 2026


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

Signed-off-by: Nick Xie <nick at 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 at 1 {
+		reg = <1>;
+		compatible = "brcm,bcm43456-fmac", "brcm,bcm4329-fmac";
+	};
+};
+
 &spicc0 {
 	status = "okay";
 	pinctrl-names = "default";
-- 
2.34.1




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