Re: [PATCH v2 3/5] arm64: dts: allwinner: h700: Add RG35XX-Plus DTS

[Andre Przywara <andre.przywara@arm.com>]

On Sat, 20 Apr 2024 22:43:57 +1200
Ryan Walklin <ryan@testtoast.com> wrote:

Hi,

> The RG35XX-Plus adds a RTL8221CS SDIO Wifi/BT chip to the RG35XX (2024).
> 
> Enabled in this DTS:
> - WiFi
> - Bluetooth
> - Supporting power sequence and GPIOs
> 
> Changelog v1..v2:
> - Update copyright
> - Spaces -> Tabs
> - Remove redundant &uart0 node and DTS version tag
> - Add GPIO bank comments
> - Use generic pwrseq name
> 
> Signed-off-by: Ryan Walklin <ryan@testtoast.com>
> ---
>  .../sun50i-h700-anbernic-rg35xx-plus.dts      | 53 +++++++++++++++++++
>  1 file changed, 53 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-plus.dts
> 
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-plus.dts b/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-plus.dts
> new file mode 100644
> index 000000000000..67ba1c7bb3ca
> --- /dev/null
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-plus.dts
> @@ -0,0 +1,53 @@
> +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +/*
> + * Copyright (C) 2024 Ryan Walklin <ryan@testtoast.com>.
> + */
> +
> +#include "sun50i-h700-anbernic-rg35xx-2024.dts"
> +
> +/ {
> +	model = "Anbernic RG35XX Plus";
> +	compatible = "anbernic,rg35xx-plus", "allwinner,sun50i-h700";
> +
> +	wifi_pwrseq: pwrseq {
> +		compatible = "mmc-pwrseq-simple";
> +		clocks = <&rtc CLK_OSC32K_FANOUT>;
> +		clock-names = "ext_clock";
> +		pinctrl-0 = <&x32clk_fanout_pin>;
> +		pinctrl-names = "default";
> +		post-power-on-delay-ms = <200>;
> +		reset-gpios = <&pio 6 18 GPIO_ACTIVE_LOW>; /* PG18 */
> +	};
> +};
> +
> +/* SDIO WiFi RTL8821CS */
> +&mmc1 {
> +	vmmc-supply = <&reg_cldo4>;
> +	vqmmc-supply = <&reg_pll_dcx0>;

It would be great to confirm what the I/O voltage for MMC1/WiFi really
is, 1.8V or 3.3V? Is someone with a board able to measure this?

The rest looks good to me, thanks for the changes.

Cheers,
Andre

> +	mmc-pwrseq = <&wifi_pwrseq>;
> +	bus-width = <4>;
> +	non-removable;
> +	status = "okay";
> +
> +	sdio_wifi: wifi@1 {
> +	   reg = <1>;
> +	   interrupt-parent = <&pio>;
> +	   interrupts = <6 15 IRQ_TYPE_LEVEL_LOW>; /* PG15 */
> +	   interrupt-names = "host-wake";
> +	};
> +};
> +
> +/* Bluetooth RTL8821CS */
> +&uart1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&uart1_pins>, <&uart1_rts_cts_pins>;
> +	uart-has-rtscts;
> +	status = "okay";
> +
> +	bluetooth {
> +		compatible = "realtek,rtl8821cs-bt", "realtek,rtl8723bs-bt";
> +		device-wake-gpios = <&pio 6 17 GPIO_ACTIVE_HIGH>; /* PG17 */
> +		enable-gpios = <&pio 6 19 GPIO_ACTIVE_HIGH>; /* PG19 */
> +		host-wake-gpios = <&pio 6 16 GPIO_ACTIVE_HIGH>; /* PG16 */
> +	};
> +};