riscv: dts: thead: Add devicetree nodes for DWC3 (host USB) controller

Add DWC3 device controller and the needed glue nodes.

Ported from vendor kernel [1].

[1] https://gitee.com/thead-yocto/kernel.git

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Change-Id: I3e023ec8d778c44204fa2e67b107431fff36f035

diff --git a/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts b/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts
index 7eb123bdc2b98dbf610cf1cee2f2ced99ceff51c..059edc62392435aa7f3e616a1cd672f98d2c54e6 100644 (file)
--- a/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts
+++ b/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts
@@ -32,6 +32,26 @@
        chosen {
                stdout-path = "serial0:115200n8";
        };
+
+       reg_usb_hub_vdd1v2: regulator-hub-vdd12-en {
+               compatible = "regulator-fixed";
+               regulator-name = "regulator-hub-vdd12-en";
+               regulator-min-microvolt = <1200000>;
+               regulator-max-microvolt = <1200000>;
+               gpio = <&pcal6408ahk_d 2 1>;
+               enable-active-high;
+
+       };
+
+       reg_usb_hub_vcc5v: regulator-hub-vcc5v-en {
+               compatible = "regulator-fixed";
+               regulator-name = "regulator-hub-vcc5v-en";
+               regulator-min-microvolt = <5000000>;
+               regulator-max-microvolt = <5000000>;
+               gpio = <&pcal6408ahk_d 3 1>;
+               enable-active-high;
+
+       };
 };
 
 &uart0 {
@@ -204,3 +224,10 @@
        pinctrl-0 = <&pinctrl_gmac1>;
 
 };
+
+&usb_1 {
+       hubswitch-gpio = <&porte 4 0>;
+       vbus-supply = <&soc_vbus_en_reg>;
+       hub1v2-supply = <&reg_usb_hub_vdd1v2>;
+       hub5v-supply = <&reg_usb_hub_vcc5v>;
+};

diff --git a/arch/riscv/boot/dts/thead/th1520.dtsi b/arch/riscv/boot/dts/thead/th1520.dtsi
index 6a03e059f16968b02bfd27dcdf29e8035d7984a9..f8b217eb9e23448ad174b0398b240699d4d46d75 100644 (file)
--- a/arch/riscv/boot/dts/thead/th1520.dtsi
+++ b/arch/riscv/boot/dts/thead/th1520.dtsi
@@ -729,6 +729,12 @@
                        status = "okay";
                };
 
+               usb3_drd: usb3_drd@ffec03f000 {
+                       compatible = "thead,light-usb3-drd", "syscon";
+                       reg = <0xff 0xec03f000 0x0 0x1000>;
+                       status = "okay";
+               };
+
                clk: clock-controller@ffef010000 {
                        compatible = "thead,light-fm-ree-clk";
                        reg = <0xff 0xef010000 0x0 0x1000>;
@@ -1129,5 +1135,34 @@
                        nvmem-cells = <&gmac1_mac_address>;
                        nvmem-cell-names = "mac-address";
                };
+
+               usb_1: usb@ffec03f000 {
+                       compatible = "thead,dwc3";
+                       usb3-misc-regmap = <&miscsys_reg>;
+                       usb3-drd-regmap = <&usb3_drd>;
+                       clocks = <&miscsys_clk_gate CLKGEN_MISCSYS_USB3_DRD_CLK>,
+                                       <&miscsys_clk_gate CLKGEN_MISCSYS_USB3_DRD_CTRL_REF_CLK>,
+                                       <&miscsys_clk_gate CLKGEN_MISCSYS_USB3_DRD_PHY_REF_CLK>,
+                                       <&miscsys_clk_gate CLKGEN_MISCSYS_USB3_DRD_SUSPEND_CLK>;
+                       clock-names = "drd", "ctrl", "phy", "suspend";
+                       #address-cells = <2>;
+                       #size-cells = <2>;
+                       ranges;
+
+                       usb: dwc3@ffe7040000 {
+                               compatible = "snps,dwc3";
+                               reg = <0xff 0xe7040000 0x0 0x10000>;
+                               interrupt-parent = <&plic>;
+                               interrupts = <68 IRQ_TYPE_LEVEL_HIGH>;
+                               reg-shift = <2>;
+                               reg-io-width = <4>;
+                               maximum-speed = "super-speed";
+                               dr_mode = "host";
+                               dma-mask = <0xf 0xffffffff>;
+                               snps,usb3_lpm_capable;
+                               snps,usb_sofitpsync;
+                               status = "okay";
+                       };
+               };
        };
 };