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ARM: dts: sun8i: Add dt node for esp8089 wifi chip on polaroid-mid2809 

The polaroid-mid2809 tablet has an esp8089 wifi chip,
add a dt node describing it.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
This commit is contained in:
Hans de Goede 2016-08-26 16:52:35 +02:00 committed by Maxime Ripard
parent 1e03325af6
commit b44a0a72df
1 changed files with 42 additions and 0 deletions
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42
arch/arm/boot/dts/sun8i-a23-polaroid-mid2809pxe04.dts
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@ -47,4 +47,46 @@
/ { / {
model = "Polaroid MID2809PXE04 tablet"; model = "Polaroid MID2809PXE04 tablet";
compatible = "polaroid,mid2809pxe04", "allwinner,sun8i-a23"; compatible = "polaroid,mid2809pxe04", "allwinner,sun8i-a23";
aliases {
ethernet0 = &esp8089;
};
wifi_pwrseq: wifi_pwrseq {
compatible = "mmc-pwrseq-simple";
pinctrl-names = "default";
pinctrl-0 = <&wifi_pwrseq_pin_mid2809>;
reset-gpios = <&r_pio 0 6 GPIO_ACTIVE_LOW>; /* PL6 */
/* The esp8089 needs 200 ms after driving wifi-en high */
post-power-on-delay-ms = <200>;
};
};
&mmc1 {
pinctrl-names = "default";
pinctrl-0 = <&mmc1_pins_a>;
vmmc-supply = <&reg_dldo1>;
mmc-pwrseq = <&wifi_pwrseq>;
bus-width = <4>;
non-removable;
status = "okay";
esp8089: sdio_wifi@1 {
compatible = "esp,esp8089";
reg = <1>;
esp,crystal-26M-en = <2>;
};
};
&mmc1_pins_a {
allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
};
&r_pio {
wifi_pwrseq_pin_mid2809: wifi_pwrseq_pin@0 {
allwinner,pins = "PL6";
allwinner,function = "gpio_out";
allwinner,drive = <SUN4I_PINCTRL_10_MA>;
allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
};
}; };