github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-30 10:04:04 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

arm64: dts: rockchip: Add WiFi on rk3576-evb1-v10

Browse Source 
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>
This commit is contained in:
Alexey Charkov 2025-08-13 00:30:24 +04:00 committed by Heiko Stuebner
parent 0adaae7786
commit ebf8183ad0
1 changed files with 58 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

58
arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts
View File

@ -232,6 +232,20 @@ vcc_ufs_s0: regulator-vcc-ufs-s0 {
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_b0 {
cpu-supply = <&vdd_cpu_big_s0>;
};
&combphy0_ps {
status = "okay";
};
&combphy1_psu {
status = "okay";
};
@ -712,6 +730,30 @@ rgmii_phy1: phy@1 {
};
};
&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 @@ rtc_int: rtc-int {
};
};
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 @@ usbc0_int: usbc0-int {
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 {