Enable MT8192's PCIe controller and add support for the MT7921e WiFi
card that is present on that bus for the Asurada platform.
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@xxxxxxxxxxxxx>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
---
Changes in v2:
- Added this patch
.../boot/dts/mediatek/mt8192-asurada.dtsi | 74 +++++++++++++++++++
1 file changed, 74 insertions(+)
diff --git a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
index 4f9a9ec046b0..87a9a6b1eabc 100644
--- a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
@@ -66,6 +66,19 @@ pp3300_u: pp3300-u {
vin-supply = <&pp3300_g>;
};
+ pp3300_wlan: pp3300-wlan {
+ compatible = "regulator-fixed";
+ regulator-name = "pp3300_wlan";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pp3300_wlan_pins>;
+ enable-active-high;
+ gpio = <&pio 143 GPIO_ACTIVE_HIGH>;
+ };
+
/* system wide switching 5.0V power rail */
pp5000_a: pp5000-a {
compatible = "regulator-fixed";
@@ -84,6 +97,17 @@ ppvar_sys: ppvar-sys {
regulator-always-on;
regulator-boot-on;
};
+
+ reserved_memory: reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ wifi_restricted_dma_region: wifi@c0000000 {
+ compatible = "restricted-dma-pool";
+ reg = <0 0xc0000000 0 0x4000000>;
+ };
+ };
};
&i2c0 {
@@ -144,6 +168,28 @@ &i2c7 {
pinctrl-0 = <&i2c7_pins>;
};
+&pcie {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pcie_pins>;
+
+ pcie0: pcie@0,0 {
+ device_type = "pci";
+ reg = <0x0000 0 0 0 0>;
+ num-lanes = <1>;
+ bus-range = <0x1 0x1>;
+
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges;
+
+ wifi: wifi@0,0 {
+ reg = <0x10000 0 0 0 0x100000>,
+ <0x10000 0 0x100000 0 0x100000>;
+ memory-region = <&wifi_restricted_dma_region>;
+ };
+ };
+};
+
&pio {
/* 220 lines */
gpio-line-names = "I2S_DP_LRCK",
@@ -434,6 +480,34 @@ pins-bus {
};
};
+ pcie_pins: pcie-default-pins {
+ pins-pcie-wake {
+ pinmux = <PINMUX_GPIO63__FUNC_PCIE_WAKE_N>;
+ bias-pull-up;
+ };
+
+ pins-pcie-pereset {
+ pinmux = <PINMUX_GPIO64__FUNC_PCIE_PERESET_N>;
+ };
+
+ pins-pcie-clkreq {
+ pinmux = <PINMUX_GPIO65__FUNC_PCIE_CLKREQ_N>;
+ bias-pull-up;
+ };
+
+ pins-wifi-kill {
+ pinmux = <PINMUX_GPIO145__FUNC_GPIO145>; /* WIFI_KILL_L */
+ output-high;
+ };
+ };
+
+ pp3300_wlan_pins: pp3300-wlan-pins {
+ pins-pcie-en-pp3300-wlan {
+ pinmux = <PINMUX_GPIO143__FUNC_GPIO143>;
+ output-high;
+ };
+ };
+
spi1_pins: spi1-default-pins {
pins-cs-mosi-clk {
pinmux = <PINMUX_GPIO157__FUNC_SPI1_A_CSB>,
--
2.36.0
