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Wed, 23 Sep 2026 04:20:12 -0700 (PDT) From: Vladimir To: Chen-Yu Tsai , Jernej Skrabec , Samuel Holland Cc: linux-sunxi@lists.linux.dev, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org Subject: [PATCH v3 2/2] arm64: dts: allwinner: h616: orangepi-zero2w: add SDIO WiFi/BT (AW859A) Date: Wed, 23 Sep 2026 16:20:08 +0500 Message-ID: <20260923112009.1062-2-anykey196@gmail.com> X-Mailer: git-send-email 2.55.0.windows.3 In-Reply-To: <20260923112009.1062-1-anykey196@gmail.com> References: <20260923112009.1062-1-anykey196@gmail.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Enable the SDIO bus (mmc1) and power the on-board AW859A (UWE5622) WiFi/BT combo through an mmc-pwrseq-simple that resets WL_REG_ON (PG18) and gates the RTC 32 kHz fanout clock (PG10), with the 3.3 V and 1.8 V supplies. The pwrseq clock must be named "ext_clock" (what mmc-pwrseq-simple requests) and its output pin must be muxed to the clock function, as done for the other H616/H618 boards. Tested on: OrangePi Zero 2W (Allwinner H618) with the out-of-tree uwe5622 driver. Signed-off-by: Vladimir --- .../allwinner/sun50i-h618-orangepi-zero2w.dts | 42 +++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h618-orangepi-zero2w.dts b/arch/arm64/boot/dts/allwinner/sun50i-h618-orangepi-zero2w.dts index ff9b40352a5..39f580af15b 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-h618-orangepi-zero2w.dts +++ b/arch/arm64/boot/dts/allwinner/sun50i-h618-orangepi-zero2w.dts @@ -189,3 +189,45 @@ &usbphy { usb1_vbus-supply = <®_vcc5v>; status = "okay"; }; + +/ { + 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 = <®_vcc5v>; + }; + + reg_vcc_wifi_io: vcc-wifi-io { + /* Always-on 1.8V 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 = <®_vcc33_wifi>; + }; + + wifi_pwrseq: wifi-pwrseq { + compatible = "mmc-pwrseq-simple"; + clocks = <&rtc CLK_OSC32K_FANOUT>; + clock-names = "ext_clock"; + pinctrl-names = "default"; + pinctrl-0 = <&x32clk_fanout_pin>; + reset-gpios = <&pio 6 18 GPIO_ACTIVE_LOW>; /* PG18 */ + post-power-on-delay-ms = <200>; + }; +}; + +&mmc1 { + vmmc-supply = <®_vcc33_wifi>; + vqmmc-supply = <®_vcc_wifi_io>; + mmc-pwrseq = <&wifi_pwrseq>; + bus-width = <4>; + non-removable; + mmc-ddr-1_8v; + status = "okay"; +}; -- 2.55.0.windows.3