linux-kernel - [PATCH 1/7] ARM: dts: exynos: k3g: Add WiFi card support

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Message-ID: <20230716220644.22158-2-markuss.broks@gmail.com>
Date:   Mon, 17 Jul 2023 01:05:02 +0300
From:   Markuss Broks <markuss.broks@...il.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Markuss Broks <markuss.broks@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/7] ARM: dts: exynos: k3g: Add WiFi card support

This device has Broadcom BCM4354 WiFi card installed,
which uses SDIO interface.

Signed-off-by: Markuss Broks <markuss.broks@...il.com>
---
 arch/arm/boot/dts/exynos5422-samsung-k3g.dts | 29 ++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/arch/arm/boot/dts/exynos5422-samsung-k3g.dts b/arch/arm/boot/dts/exynos5422-samsung-k3g.dts
index c35261a338ff..1a11a6993ba7 100644
--- a/arch/arm/boot/dts/exynos5422-samsung-k3g.dts
+++ b/arch/arm/boot/dts/exynos5422-samsung-k3g.dts
@@ -48,6 +48,13 @@ tsp_vdd: regulator-tsp-vdd-en {
 		gpio = <&gpy3 5 GPIO_ACTIVE_HIGH>;
 		enable-active-high;
 	};
+
+	wlan_pwrseq: wlan-pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		reset-gpios = <&gpy7 7 GPIO_ACTIVE_LOW>; /* WIFI_EN */
+		clocks = <&s2mps11_osc S2MPS11_CLK_BT>; /* Used not only for Bluetooth */
+		clock-names = "ext_clock";
+	};
 };
 
 &cpu0 {
@@ -616,6 +623,23 @@ &mmc_0 {
 	bus-width = <8>;
 };
 
+/* WiFi SDIO module */
+&mmc_1 {
+	status = "okay";
+	cap-sdio-irq;
+	cap-sd-highspeed;
+	non-removable;
+	samsung,dw-mshc-ciu-div = <1>;
+	samsung,dw-mshc-sdr-timing = <0 1>;
+	samsung,dw-mshc-ddr-timing = <0 2>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sd1_clk>, <&sd1_cmd>, <&sd1_int>, <&sd1_bus1>,
+			<&sd1_bus4>, <&wlan_reset>;
+	bus-width = <4>;
+	vqmmc-supply = <&ldo3_reg>;
+	mmc-pwrseq = <&wlan_pwrseq>;
+};
+
 &pinctrl_0 {
 	s2mps11_irq: s2mps11-irq-pins {
 		samsung,pins = "gpx0-7";
@@ -628,6 +652,11 @@ touch_irq: touch-irq-pins {
 		samsung,pins = "gpx1-6";
 		samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>;
 	};
+
+	wlan_reset: wlan-reset {
+		samsung,pins = "gpy7-7";
+		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+	};
 };
 
 &rtc {
-- 
2.41.0