From 95ff4aab4173fce010832756b8bea3a7cba3238d Mon Sep 17 00:00:00 2001 From: Spyridon Papageorgiou Date: Thu, 11 Apr 2019 14:41:03 +0200 Subject: [PATCH] arm64: dts: renesas: ulcb-kf: Add support for TI WL1837 This patch adds description of TI WL1837 and links interfaces to communicate with the IC, namely the SDIO interface to WLAN. Signed-off-by: Spyridon Papageorgiou Signed-off-by: Simon Horman --- arch/arm64/boot/dts/renesas/ulcb-kf.dtsi | 49 ++++++++++++++++++++++++ 1 file changed, 49 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi b/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi index 7a09576b3112..27851a77f538 100644 --- a/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi +++ b/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi @@ -38,6 +38,18 @@ regulator-min-microvolt = <5000000>; regulator-max-microvolt = <5000000>; }; + + wlan_en: regulator-wlan_en { + compatible = "regulator-fixed"; + regulator-name = "wlan-en-regulator"; + + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + + gpio = <&gpio_exp_74 4 GPIO_ACTIVE_HIGH>; + startup-delay-us = <70000>; + enable-active-high; + }; }; &can0 { @@ -88,6 +100,13 @@ line-name = "Audio_Out_OFF"; }; + sd-wifi-mux { + gpio-hog; + gpios = <5 GPIO_ACTIVE_HIGH>; + output-low; /* Connect WL1837 */ + line-name = "SD WiFi mux"; + }; + hub_pwen { gpio-hog; gpios = <6 GPIO_ACTIVE_HIGH>; @@ -254,6 +273,12 @@ function = "scif1"; }; + sdhi3_pins: sdhi3 { + groups = "sdhi3_data4", "sdhi3_ctrl"; + function = "sdhi3"; + power-source = <3300>; + }; + usb0_pins: usb0 { groups = "usb0"; function = "usb0"; @@ -273,6 +298,30 @@ status = "okay"; }; +&sdhi3 { + pinctrl-0 = <&sdhi3_pins>; + pinctrl-names = "default"; + + vmmc-supply = <&wlan_en>; + vqmmc-supply = <&wlan_en>; + bus-width = <4>; + no-1-8-v; + non-removable; + cap-power-off-card; + keep-power-in-suspend; + max-frequency = <26000000>; + status = "okay"; + + #address-cells = <1>; + #size-cells = <0>; + wlcore: wlcore@2 { + compatible = "ti,wl1837"; + reg = <2>; + interrupt-parent = <&gpio1>; + interrupts = <25 IRQ_TYPE_EDGE_FALLING>; + }; +}; + &usb2_phy0 { pinctrl-0 = <&usb0_pins>; pinctrl-names = "default"; -- 2.30.2