linux-kernel - [PATCH v2 5/5] arm64: dts: meson: a1: support USB controller in OTG mode

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Date:   Tue, 18 Apr 2023 14:16:12 +0300
From:   Dmitry Rokosov <ddrokosov@...rdevices.ru>
To:     <gregkh@...uxfoundation.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <neil.armstrong@...aro.org>,
        <khilman@...libre.com>, <jbrunet@...libre.com>,
        <martin.blumenstingl@...glemail.com>, <mturquette@...libre.com>,
        <vkoul@...nel.org>, <kishon@...nel.org>, <hminas@...opsys.com>,
        <Thinh.Nguyen@...opsys.com>
CC:     <yue.wang@...ogic.com>, <hanjie.lin@...ogic.com>,
        <kernel@...rdevices.ru>, <rockosov@...il.com>,
        <linux-usb@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-amlogic@...ts.infradead.org>,
        <linux-phy@...ts.infradead.org>,
        Dmitry Rokosov <ddrokosov@...rdevices.ru>
Subject: [PATCH v2 5/5] arm64: dts: meson: a1: support USB controller in OTG mode

Amlogic A1 SoC family has USB2.0 controller based on dwc2 and dwc3
heads. It supports otg/host/peripheral modes.

Signed-off-by: Yue Wang <yue.wang@...ogic.com>
Signed-off-by: Hanjie Lin <hanjie.lin@...ogic.com>
Signed-off-by: Dmitry Rokosov <ddrokosov@...rdevices.ru>
---
 arch/arm64/boot/dts/amlogic/meson-a1.dtsi | 59 +++++++++++++++++++++++
 1 file changed, 59 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
index ae7d39cff07a..02af0aac6780 100644
--- a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
@@ -8,6 +8,8 @@
 #include <dt-bindings/gpio/meson-a1-gpio.h>
 #include <dt-bindings/clock/amlogic,a1-pll-clkc.h>
 #include <dt-bindings/clock/amlogic,a1-clkc.h>
+#include <dt-bindings/power/meson-a1-power.h>
+#include <dt-bindings/reset/amlogic,meson-a1-reset.h>
 
 / {
 	compatible = "amlogic,a1";
@@ -169,6 +171,17 @@ gpio_intc: interrupt-controller@...0 {
 				amlogic,channel-interrupts =
 					<49 50 51 52 53 54 55 56>;
 			};
+
+			usb2_phy1: phy@...0 {
+				compatible = "amlogic,a1-usb2-phy";
+				clocks = <&clkc CLKID_USB_PHY_IN>;
+				clock-names = "xtal";
+				reg = <0x0 0x4000 0x0 0x60>;
+				resets = <&reset RESET_USBPHY>;
+				reset-names = "phy";
+				#phy-cells = <0>;
+				power-domains = <&pwrc PWRC_USB_ID>;
+			};
 		};
 
 		gic: interrupt-controller@...01000 {
@@ -192,6 +205,52 @@ spifc: spi@...00400 {
 			#size-cells = <0>;
 			status = "disabled";
 		};
+
+		usb: usb@...04400 {
+			status = "disabled";
+			compatible = "amlogic,meson-a1-usb-ctrl";
+			reg = <0x0 0xfe004400 0x0 0xa0>;
+			interrupts = <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>;
+			#address-cells = <2>;
+			#size-cells = <2>;
+			ranges;
+
+			clocks = <&clkc CLKID_USB_CTRL>,
+				 <&clkc CLKID_USB_BUS>,
+				 <&clkc CLKID_USB_CTRL_IN>;
+			clock-names = "usb_ctrl", "usb_bus", "xtal_usb_ctrl";
+			resets = <&reset RESET_USBCTRL>;
+			reset-name = "usb_ctrl";
+
+			dr_mode = "otg";
+
+			phys = <&usb2_phy1>;
+			phy-names = "usb2-phy1";
+
+			dwc2: usb@...00000 {
+				compatible = "amlogic,meson-a1-usb", "snps,dwc2";
+				reg = <0x0 0xff500000 0x0 0x40000>;
+				interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
+				phys = <&usb2_phy1>;
+				phy-names = "usb2_phy";
+				clocks = <&clkc CLKID_USB_PHY>;
+				clock-names = "otg";
+				dr_mode = "peripheral";
+				g-rx-fifo-size = <192>;
+				g-np-tx-fifo-size = <128>;
+				g-tx-fifo-size = <128 128 16 16 16>;
+			};
+
+			dwc3: usb@...00000 {
+				compatible = "snps,dwc3";
+				reg = <0x0 0xff400000 0x0 0x100000>;
+				interrupts = <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>;
+				dr_mode = "host";
+				snps,dis_u2_susphy_quirk;
+				snps,quirk-frame-length-adjustment = <0x20>;
+				snps,parkmode-disable-ss-quirk;
+			};
+		};
 	};
 
 	timer {
-- 
2.36.0