linux-kernel - [PATCH] ARM64: dts: meson-axg: enable AP6255 wifi module

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Message-ID: <20180423145729.14368-1-yixun.lan@amlogic.com>
Date:   Mon, 23 Apr 2018 14:57:29 +0000
From:   Yixun Lan <yixun.lan@...ogic.com>
To:     Kevin Hilman <khilman@...libre.com>
CC:     Yixun Lan <yixun.lan@...ogic.com>, Carlo Caione <carlo@...one.org>,
        Jerome Brunet <jbrunet@...libre.com>,
        <linux-amlogic@...ts.infradead.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>
Subject: [PATCH] ARM64: dts: meson-axg: enable AP6255 wifi module

The Meson-AXG S400 board is shipped with AP6255 wifi module,
which is actually using the brcmfmac 43455 driver.

Signed-off-by: Yixun Lan <yixun.lan@...ogic.com>
---
 .../arm64/boot/dts/amlogic/meson-axg-s400.dts | 44 ++++++++++++++++++-
 1 file changed, 43 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
index f67d4e47e641..b3e1bdca32bb 100644
--- a/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
@@ -51,7 +51,16 @@
 
 	sdio_pwrseq: sdio-pwrseq {
 		compatible = "mmc-pwrseq-simple";
-		reset-gpios = <&gpio GPIOX_6 GPIO_ACTIVE_LOW>;
+		reset-gpios = <&gpio GPIOX_7 GPIO_ACTIVE_LOW>;
+		clocks = <&wifi32k>;
+		clock-names = "ext_clock";
+	};
+
+	wifi32k: wifi32k {
+		compatible = "pwm-clock";
+		#clock-cells = <0>;
+		clock-frequency = <32768>;
+		pwms = <&pwm_ab 0 30518 0>; /* PWM_A at 32.768KHz */
 	};
 };
 
@@ -86,6 +95,12 @@
 	pinctrl-names = "default";
 };
 
+&pwm_ab {
+	status = "okay";
+	pinctrl-0 = <&pwm_a_x20_pins>;
+	pinctrl-names = "default";
+};
+
 /* emmc storage */
 &sd_emmc_c {
 	status = "okay";
@@ -105,3 +120,30 @@
 	vmmc-supply = <&vcc_3v3>;
 	vqmmc-supply = <&vddio_boot>;
 };
+
+/* wifi module */
+&sd_emmc_b {
+	status = "okay";
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	pinctrl-0 = <&sdio_pins>;
+	pinctrl-1 = <&sdio_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
+
+	bus-width = <4>;
+	cap-sd-highspeed;
+	max-frequency = <100000000>;
+	non-removable;
+	disable-wp;
+
+	mmc-pwrseq = <&sdio_pwrseq>;
+
+	vmmc-supply = <&vddao_3v3>;
+	vqmmc-supply = <&vddio_boot>;
+
+	brcmf: wifi@1 {
+		reg = <1>;
+		compatible = "brcm,bcm4329-fmac";
+	};
+};
-- 
2.17.0