The Orangepi Plus and Orangepi Plus 2 have a realtek rtl8189etv sdio wifi chip. This commit adds a device-tree node to power it up, so that the mmc subsys can scan it, and enables the mmc controller which is connected to it.
Note that this just makes the wifi controller show up as a sdio device. In order for it to work a compatible sdio driver is necessary, an out of tree driver is available here: https://github.com/jwrdegoede/rtl8189ES_linux/ Binding the driver is not done through device tree, but through sdio vendor- and device-id, so it can safely be enabled in devicetree without having a driver upstream yet. Signed-off-by: Hans de Goede <[email protected]> --- arch/arm/boot/dts/sun8i-h3-orangepi-plus.dts | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/arch/arm/boot/dts/sun8i-h3-orangepi-plus.dts b/arch/arm/boot/dts/sun8i-h3-orangepi-plus.dts index a7cdfd0..f5aa694 100644 --- a/arch/arm/boot/dts/sun8i-h3-orangepi-plus.dts +++ b/arch/arm/boot/dts/sun8i-h3-orangepi-plus.dts @@ -108,6 +108,13 @@ enable-active-high; gpio = <&pio 6 11 GPIO_ACTIVE_HIGH>; }; + + wifi_pwrseq: wifi_pwrseq { + compatible = "mmc-pwrseq-simple"; + pinctrl-names = "default"; + pinctrl-0 = <&wifi_pwrseq_pin_orangepi>; + reset-gpios = <&r_pio 0 7 GPIO_ACTIVE_LOW>; /* PL7 WIFI_EN */ + }; }; &pio { @@ -156,6 +163,13 @@ allwinner,drive = <SUN4I_PINCTRL_10_MA>; allwinner,pull = <SUN4I_PINCTRL_NO_PULL>; }; + + wifi_pwrseq_pin_orangepi: wifi_pwrseq_pin@0 { + allwinner,pins = "PL7"; + allwinner,function = "gpio_out"; + allwinner,drive = <SUN4I_PINCTRL_10_MA>; + allwinner,pull = <SUN4I_PINCTRL_NO_PULL>; + }; }; &mmc0 { @@ -168,6 +182,16 @@ status = "okay"; }; +&mmc1 { + pinctrl-names = "default"; + pinctrl-0 = <&mmc1_pins_a>; + vmmc-supply = <®_vcc3v3>; + mmc-pwrseq = <&wifi_pwrseq>; + bus-width = <4>; + non-removable; + status = "okay"; +}; + ®_usb1_vbus { gpio = <&pio 6 13 GPIO_ACTIVE_HIGH>; status = "okay"; -- 2.7.3 -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
