arm: mediatek: add usb support for MT7988

MT7988 has a t-phy and an x-phy controller. There is already a driver for
t-phy so we can add USB support for this phy type.

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>

diff --git a/arch/arm/dts/mt7988.dtsi b/arch/arm/dts/mt7988.dtsi
index ddd629e8c99d50a25cc748fc5ed6a6e05465f513..ac476d5cdd7f85c23d35596ff884dbdc81884bb7 100644 (file)
--- a/arch/arm/dts/mt7988.dtsi
+++ b/arch/arm/dts/mt7988.dtsi
@@ -9,6 +9,7 @@
 #include <dt-bindings/clock/mt7988-clk.h>
 #include <dt-bindings/reset/mt7988-reset.h>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/phy/phy.h>
 
 / {
        compatible = "mediatek,mt7988-rfb";
@@ -161,6 +162,65 @@
                #clock-cells = <1>;
        };
 
+       dummy_clk: dummy12m {
+               compatible = "fixed-clock";
+               clock-frequency = <12000000>;
+               #clock-cells = <0>;
+               /* must need this line, or uart uanable to get dummy_clk */
+               bootph-all;
+       };
+
+       xhci1: xhci@11200000 {
+               compatible = "mediatek,mt7988-xhci",
+                            "mediatek,mtk-xhci";
+               reg = <0 0x11200000 0 0x2e00>,
+                     <0 0x11203e00 0 0x0100>;
+               reg-names = "mac", "ippc";
+               interrupts = <GIC_SPI 172 IRQ_TYPE_LEVEL_HIGH>;
+               phys = <&tphyu2port0 PHY_TYPE_USB2>,
+                      <&tphyu3port0 PHY_TYPE_USB3>;
+               clocks = <&dummy_clk>,
+                        <&dummy_clk>,
+                        <&dummy_clk>,
+                        <&dummy_clk>,
+                        <&dummy_clk>;
+               clock-names = "sys_ck",
+                             "xhci_ck",
+                             "ref_ck",
+                             "mcu_ck",
+                             "dma_ck";
+               #address-cells = <2>;
+               #size-cells = <2>;
+               status = "okay";
+       };
+
+       usbtphy: usb-phy@11c50000 {
+               compatible = "mediatek,mt7988",
+                            "mediatek,generic-tphy-v2";
+               #address-cells = <2>;
+               #size-cells = <2>;
+               ranges;
+               status = "okay";
+
+               tphyu2port0: usb-phy@11c50000 {
+                       reg = <0 0x11c50000 0 0x700>;
+                       clocks = <&dummy_clk>;
+                       clock-names = "ref";
+                       #phy-cells = <1>;
+                       status = "okay";
+               };
+
+               tphyu3port0: usb-phy@11c50700 {
+                       reg = <0 0x11c50700 0 0x900>;
+                       clocks = <&dummy_clk>;
+                       clock-names = "ref";
+                       #phy-cells = <1>;
+                       mediatek,usb3-pll-ssc-delta;
+                       mediatek,usb3-pll-ssc-delta1;
+                       status = "okay";
+               };
+       };
+
        xfi_pextp0: syscon@11f20000 {
                compatible = "mediatek,mt7988-xfi_pextp_0", "syscon";
                reg = <0 0x11f20000 0 0x10000>;