Enable the sdio0 slot on the Rock2 square which has a broadcom wifi chip
attached and add a power sequence to enable the wifi chip and turn on
the required 32k clock.
Signed-off-by: Sjoerd Simons <sjoerd.simons at collabora.co.uk>
---
arch/arm/boot/dts/rk3288-rock2-square.dts | 33 ++++++++++++++++++++++++++++++-
1 file changed, 32 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/rk3288-rock2-square.dts b/arch/arm/boot/dts/rk3288-rock2-square.dts
index 8af35c8..dd53af3 100644
--- a/arch/arm/boot/dts/rk3288-rock2-square.dts
+++ b/arch/arm/boot/dts/rk3288-rock2-square.dts
@@ -63,6 +63,16 @@
#sound-dai-cells = <0>;
};
+ sdio_pwrseq: sdio-pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ clocks = <&hym8563>;
+ clock-names = "xin32k";
+ reset-gpios = <&gpio4 28 GPIO_ACTIVE_LOW>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&wifi_enable>;
+ };
+
vcc_usb_host: vcc-host-regulator {
compatible = "regulator-fixed";
enable-active-high;
@@ -88,6 +98,21 @@
};
};
+&sdio0 {
+ bus-width = <4>;
+ cap-sd-highspeed;
+ cap-sdio-irq;
+ disable-wp;
+ mmc-pwrseq = <&sdio_pwrseq>;
+ non-removable;
+ num-slots = <1>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdio0_bus4 &sdio0_cmd &sdio0_clk &sdio0_int>;
+ vmmc-supply = <&vcc_io>;
+ vqmmc-supply = <&vcc_18>;
+ status = "okay";
+};
+
&sdmmc {
bus-width = <4>;
cap-mmc-highspeed;
@@ -112,7 +137,7 @@
};
&i2c0 {
- hym8563 at 51 {
+ hym8563: hym8563 at 51 {
compatible = "haoyu,hym8563";
reg = <0x51>;
#clock-cells = <0>;
@@ -148,6 +173,12 @@
rockchip,pins = <7 11 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
+
+ sdio {
+ wifi_enable: wifi-enable {
+ rockchip,pins = <4 28 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
};
&spdif {
--
2.7.0.rc3
