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SubjectRe: [linux-sunxi] [PATCH 12/12] arm64: dts: allwinner: orange-pi-3: Enable WiFi
Hi,

On Sat, 6 Apr 2019 at 01:45, megous via linux-sunxi
<linux-sunxi@googlegroups.com> wrote:
>
> From: Ondrej Jirman <megous@megous.com>
>
> Orange Pi 3 has AP6256 WiFi/BT module. WiFi part of the module is
> called bcm43356 and can be used with the brcmfmac driver. The module
> is powered by the two always on regulators (not AXP805).
>
> WiFi uses a PG port with 1.8V voltage level signals. SoC needs to be
> configured so that it sets up an 1.8V input bias on this port. This is
> done by the pio driver by reading the vcc-pg-supply voltage.
>
> You'll need a fw_bcm43456c5_ag.bin firmware file and nvram.txt
> configuration that can be found in the Xulongs's repository for H6:
>
> https://github.com/orangepi-xunlong/OrangePiH6_external/tree/master/ap6256
>
> Mainline brcmfmac driver expects the firmware and nvram at the
> following paths relative to the firmware directory:
>
> brcm/brcmfmac43456-sdio.bin
> brcm/brcmfmac43456-sdio.txt
>
> Signed-off-by: Ondrej Jirman <megous@megous.com>
> ---
> .../dts/allwinner/sun50i-h6-orangepi-3.dts | 48 +++++++++++++++++++
> 1 file changed, 48 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
> index 5270142527f5..6a201829bb62 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
> @@ -66,6 +66,26 @@
> regulator-always-on;
> };
>
> + reg_vcc33_wifi: vcc33-wifi {
> + /* Always on 3.3V regulator for WiFi and BT */
> + compatible = "regulator-fixed";
> + regulator-name = "vcc33-wifi";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-always-on;
> + vin-supply = <&reg_vcc5v>;
> + };
> +
> + reg_vcc_wifi_io: vcc-wifi-io {
> + /* Always on 1.8V/300mA regulator for WiFi and BT IO */
> + compatible = "regulator-fixed";
> + regulator-name = "vcc-wifi-io";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-always-on;
> + vin-supply = <&reg_vcc33_wifi>;
> + };
> +
> /*
> * The board uses 2.5V RGMII signalling. Power sequence
> * to enable the phy is to enable GMAC-2V5 and GMAC-3V3 (aldo2)
> @@ -86,6 +106,14 @@
> */
> vin-supply = <&reg_aldo2>; /* GMAC-3V3 */
> };
> +
> + wifi_pwrseq: wifi_pwrseq {
> + compatible = "mmc-pwrseq-simple";
> + clocks = <&rtc 1>;

Maybe I missed something, but the RTC in H6 is not yet available :
https://lkml.org/lkml/2018/10/31/822

Regards,
Clement

> + clock-names = "ext_clock";
> + reset-gpios = <&r_pio 1 3 GPIO_ACTIVE_LOW>; /* PM3 */
> + post-power-on-delay-ms = <200>;
> + };
> };
>
> &cpu0 {
> @@ -146,6 +174,25 @@
> status = "okay";
> };
>
> +&mmc1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&mmc1_pins>;
> + vmmc-supply = <&reg_vcc33_wifi>;
> + vqmmc-supply = <&reg_vcc_wifi_io>;
> + mmc-pwrseq = <&wifi_pwrseq>;
> + bus-width = <4>;
> + non-removable;
> + status = "okay";
> +
> + brcm: sdio-wifi@1 {
> + reg = <1>;
> + compatible = "brcm,bcm4329-fmac";
> + interrupt-parent = <&r_pio>;
> + interrupts = <1 0 IRQ_TYPE_LEVEL_LOW>; /* PM0 */
> + interrupt-names = "host-wake";
> + };
> +};
> +
> &ohci0 {
> status = "okay";
> };
> @@ -157,6 +204,7 @@
> &pio {
> vcc-pc-supply = <&reg_bldo2>;
> vcc-pd-supply = <&reg_cldo1>;
> + vcc-pg-supply = <&reg_vcc_wifi_io>;
> };
>
> &r_i2c {
> --
> 2.21.0
>
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