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From:   Peter Chiu <chui-hao.chiu@mediatek.com>
To:     Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Matthias Brugger <matthias.bgg@gmail.com>
CC:     <devicetree@vger.kernel.org>, Ryder Lee <ryder.Lee@mediatek.com>,
        Evelyn Tsai <evelyn.tsai@mediatek.com>,
        Sam Shih <sam.shih@mediatek.com>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-mediatek@lists.infradead.org>,
        <linux-kernel@vger.kernel.org>,
        Peter Chiu <chui-hao.chiu@mediatek.com>
Subject: [PATCH v5] arm64: dts: mt7986: add built-in Wi-Fi device nodes
Date:   Thu, 1 Sep 2022 21:05:52 +0800
Message-ID: <20220901130552.26234-1-chui-hao.chiu@mediatek.com>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

This enables built-in 802.11ax Wi-Fi support.

Reviewed-by: Sam Shih <sam.shih@mediatek.com>
Reviewed-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>

---
v2: add clocks and clock-names.
v3: rename wmac to wifi and change underscores to dash in node names.
v4: rebase to the latest codebase.
v5: remove useless pins in wf_dbdc_pins node.
---
 arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts | 38 +++++++++++++++++++
 arch/arm64/boot/dts/mediatek/mt7986a.dtsi    | 23 +++++++++++
 arch/arm64/boot/dts/mediatek/mt7986b-rfb.dts | 40 ++++++++++++++++++++
 3 files changed, 101 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts b/arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts
index 882277a52b69..afe37b702eef 100644
--- a/arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts
@@ -115,6 +115,13 @@
 	status = "okay";
 };
 
+&wifi {
+	status = "okay";
+	pinctrl-names = "default", "dbdc";
+	pinctrl-0 = <&wf_2g_5g_pins>;
+	pinctrl-1 = <&wf_dbdc_pins>;
+};
+
 &pio {
 	uart1_pins: uart1-pins {
 		mux {
@@ -129,4 +136,35 @@
 			groups = "uart2";
 		};
 	};
+
+	wf_2g_5g_pins: wf-2g-5g-pins {
+		mux {
+			function = "wifi";
+			groups = "wf_2g", "wf_5g";
+		};
+		conf {
+			pins = "WF0_HB1", "WF0_HB2", "WF0_HB3", "WF0_HB4",
+			       "WF0_HB0", "WF0_HB0_B", "WF0_HB5", "WF0_HB6",
+			       "WF0_HB7", "WF0_HB8", "WF0_HB9", "WF0_HB10",
+			       "WF0_TOP_CLK", "WF0_TOP_DATA", "WF1_HB1",
+			       "WF1_HB2", "WF1_HB3", "WF1_HB4", "WF1_HB0",
+			       "WF1_HB5", "WF1_HB6", "WF1_HB7", "WF1_HB8",
+			       "WF1_TOP_CLK", "WF1_TOP_DATA";
+			drive-strength = <4>;
+		};
+	};
+
+	wf_dbdc_pins: wf-dbdc-pins {
+		mux {
+			function = "wifi";
+			groups = "wf_dbdc";
+		};
+		conf {
+			pins = "WF0_HB1", "WF0_HB2", "WF0_HB3", "WF0_HB4",
+			       "WF0_HB0", "WF0_HB0_B", "WF0_HB5", "WF0_HB6",
+			       "WF0_HB7", "WF0_HB8", "WF0_HB9", "WF0_HB10",
+			       "WF0_TOP_CLK", "WF0_TOP_DATA";
+			drive-strength = <4>;
+		};
+	};
 };
diff --git a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
index e3a407d03551..890ded0efc51 100644
--- a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
@@ -7,6 +7,7 @@
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/clock/mt7986-clk.h>
+#include <dt-bindings/reset/mt7986-resets.h>
 
 / {
 	interrupt-parent = <&gic>;
@@ -70,6 +71,11 @@
 			reg = <0 0x43000000 0 0x30000>;
 			no-map;
 		};
+
+		wmcpu_emi: wmcpu-reserved@4fc00000 {
+			no-map;
+			reg = <0 0x4fc00000 0 0x00100000>;
+		};
 	};
 
 	timer {
@@ -261,6 +267,23 @@
 			#size-cells = <0>;
 			status = "disabled";
 		};
+
+		wifi: wifi@18000000 {
+			compatible = "mediatek,mt7986-wmac";
+			resets = <&watchdog MT7986_TOPRGU_CONSYS_SW_RST>;
+			reset-names = "consys";
+			clocks = <&topckgen CLK_TOP_CONN_MCUSYS_SEL>,
+				 <&topckgen CLK_TOP_AP2CNN_HOST_SEL>;
+			clock-names = "mcu", "ap2conn";
+			reg = <0 0x18000000 0 0x1000000>,
+			      <0 0x10003000 0 0x1000>,
+			      <0 0x11d10000 0 0x1000>;
+			interrupts = <GIC_SPI 213 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 214 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 215 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 216 IRQ_TYPE_LEVEL_HIGH>;
+			memory-region = <&wmcpu_emi>;
+		};
 	};
 
 };
diff --git a/arch/arm64/boot/dts/mediatek/mt7986b-rfb.dts b/arch/arm64/boot/dts/mediatek/mt7986b-rfb.dts
index 0f49d5764ff3..3443013b5971 100644
--- a/arch/arm64/boot/dts/mediatek/mt7986b-rfb.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7986b-rfb.dts
@@ -98,3 +98,43 @@
 		};
 	};
 };
+
+&wifi {
+	status = "okay";
+	pinctrl-names = "default", "dbdc";
+	pinctrl-0 = <&wf_2g_5g_pins>;
+	pinctrl-1 = <&wf_dbdc_pins>;
+};
+
+&pio {
+	wf_2g_5g_pins: wf-2g-5g-pins {
+		mux {
+			function = "wifi";
+			groups = "wf_2g", "wf_5g";
+		};
+		conf {
+			pins = "WF0_HB1", "WF0_HB2", "WF0_HB3", "WF0_HB4",
+			       "WF0_HB0", "WF0_HB0_B", "WF0_HB5", "WF0_HB6",
+			       "WF0_HB7", "WF0_HB8", "WF0_HB9", "WF0_HB10",
+			       "WF0_TOP_CLK", "WF0_TOP_DATA", "WF1_HB1",
+			       "WF1_HB2", "WF1_HB3", "WF1_HB4", "WF1_HB0",
+			       "WF1_HB5", "WF1_HB6", "WF1_HB7", "WF1_HB8",
+			       "WF1_TOP_CLK", "WF1_TOP_DATA";
+			drive-strength = <4>;
+		};
+	};
+
+	wf_dbdc_pins: wf-dbdc-pins {
+		mux {
+			function = "wifi";
+			groups = "wf_dbdc";
+		};
+		conf {
+			pins = "WF0_HB1", "WF0_HB2", "WF0_HB3", "WF0_HB4",
+			       "WF0_HB0", "WF0_HB0_B", "WF0_HB5", "WF0_HB6",
+			       "WF0_HB7", "WF0_HB8", "WF0_HB9", "WF0_HB10",
+			       "WF0_TOP_CLK", "WF0_TOP_DATA";
+			drive-strength = <4>;
+		};
+	};
+};
-- 
2.18.0