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| author | Alexey Charkov <alchark@gmail.com> | 2025-08-13 00:30:24 +0400 |
|---|---|---|
| committer | Heiko Stuebner <heiko@sntech.de> | 2025-08-24 12:44:36 +0200 |
| commit | ebf8183ad08afc4fcabe1379a5098354829d950d (patch) | |
| tree | 92d9e9dfb54f577fc1b9b8efc8a385206aca776f | |
| parent | 0adaae77862932a19cc14c086d7fd15ec0ef7703 (diff) | |
| download | linux-ebf8183ad08afc4fcabe1379a5098354829d950d.tar.gz linux-ebf8183ad08afc4fcabe1379a5098354829d950d.zip | |
arm64: dts: rockchip: Add WiFi on rk3576-evb1-v10
Add device tree nodes to enable the onboard Ampak AP6275P WiFi chip
connected over a PCIe link on Rockchip RK3576 EVB1.
It takes an external 32 kHz clock from the RTC chip and requires the
WIFI_REG_ON signal to be enabled before the bus is enumerated to
initialize properly.
Tested-by: Pavel Zhovner <pavel@flipperdevices.com>
Signed-off-by: Alexey Charkov <alchark@gmail.com>
Link: https://lore.kernel.org/r/20250813-evb1-rtcwifibt-v1-2-d13c83422971@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
| -rw-r--r-- | arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts b/arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts index b756aba9328b..1adbbcc1c569 100644 --- a/arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts +++ b/arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts @@ -232,6 +232,20 @@ regulator-max-microvolt = <3300000>; vin-supply = <&vcc_sys>; }; + + vcc_wifi_reg_on: regulator-wifi-reg-on { + compatible = "regulator-fixed"; + enable-active-high; + gpios = <&gpio1 RK_PC6 GPIO_ACTIVE_HIGH>; + pinctrl-0 = <&wifi_reg_on>; + pinctrl-names = "default"; + regulator-name = "wifi_reg_on"; + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + vin-supply = <&vcc_1v8_s3>; + }; }; &cpu_l0 { @@ -242,6 +256,10 @@ cpu-supply = <&vdd_cpu_big_s0>; }; +&combphy0_ps { + status = "okay"; +}; + &combphy1_psu { status = "okay"; }; @@ -712,6 +730,30 @@ }; }; +&pcie0 { + pinctrl-names = "default"; + pinctrl-0 = <&pcie0_rst>; + reset-gpios = <&gpio2 RK_PB4 GPIO_ACTIVE_HIGH>; + vpcie3v3-supply = <&vcc_3v3_s3>; + status = "okay"; + + pcie@0,0 { + reg = <0x0 0 0 0 0>; + bus-range = <0x0 0xf>; + device_type = "pci"; + ranges; + #address-cells = <3>; + #size-cells = <2>; + + wifi: wifi@0,0 { + compatible = "pci14e4,449d"; + reg = <0x10000 0 0 0 0>; + clocks = <&hym8563>; + clock-names = "lpo"; + }; + }; +}; + &pcie1 { reset-gpios = <&gpio4 RK_PC4 GPIO_ACTIVE_HIGH>; vpcie3v3-supply = <&vcc3v3_pcie1>; @@ -730,6 +772,12 @@ }; }; + pcie0 { + pcie0_rst: pcie0-rst { + rockchip,pins = <2 RK_PB4 RK_FUNC_GPIO &pcfg_pull_none>; + }; + }; + usb { usb_host_pwren: usb-host-pwren { rockchip,pins = <0 RK_PC7 RK_FUNC_GPIO &pcfg_pull_none>; @@ -743,6 +791,16 @@ rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_up>; }; }; + + wifi { + wifi_reg_on: wifi-reg-on { + rockchip,pins = <1 RK_PC6 RK_FUNC_GPIO &pcfg_pull_up>; + }; + + wifi_wake_host: wifi-wake-host { + rockchip,pins = <0 RK_PB0 RK_FUNC_GPIO &pcfg_pull_down>; + }; + }; }; &sdhci { |