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riscv: dts: spacemit: k3: Add USB2.0 support

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There is one USB2.0 host in K3 SoC which use DWC3 IP but only provide
USB2.0 functionality, and with only one USB2 PHY connected.

The USB2.0 controller on Pico-ITX board connects to a Terminus FE1.1 Hub
which fully USB2.0 protocol compliant and provides 4 ports.

Link: https://patch.msgid.link/20260330-02-k3-usb20-dts-v2-1-46af262fb4a9@kernel.org
Signed-off-by: Yixun Lan <dlan@kernel.org>
This commit is contained in:
Yixun Lan 2026-03-30 22:15:21 +00:00
parent f068b20455
commit d3bd58f306
2 changed files with 55 additions and 0 deletions
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24
arch/riscv/boot/dts/spacemit/k3-pico-itx.dts
View File

@ -26,6 +26,14 @@ memory@100000000 {
reg = <0x1 0x00000000 0x4 0x00000000>;
};
reg_aux_vcc3v3: regulator-aux-vcc3v3 {
compatible = "regulator-fixed";
regulator-name = "AUX_VCC3V3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
reg_aux_vcc5v: regulator-aux-vcc5v {
compatible = "regulator-fixed";
regulator-name = "AUX_VCC5V";
@ -197,3 +205,19 @@ &uart0 {
pinctrl-0 = <&uart0_0_cfg>;
status = "okay";
};
&usb2_host {
#address-cells = <1>;
#size-cells = <0>;
status = "okay";
hub@1 {
compatible = "usb1a40,0101";
reg = <1>;
vdd-supply = <&reg_aux_vcc3v3>;
};
};
&usb2_phy {
status = "okay";
};

31
arch/riscv/boot/dts/spacemit/k3.dtsi
View File

@ -438,6 +438,37 @@ soc: soc {
dma-noncoherent;
ranges;
usb2_host: usb@c0a00000 {
compatible = "spacemit,k3-dwc3";
reg = <0x0 0xc0a00000 0x0 0x10000>;
clocks = <&syscon_apmu CLK_APMU_USB2_BUS>;
clock-names = "usbdrd30";
resets = <&syscon_apmu RESET_APMU_USB2_AHB>,
<&syscon_apmu RESET_APMU_USB2_VCC>,
<&syscon_apmu RESET_APMU_USB2_PHY>;
reset-names = "ahb", "vcc", "phy";
interrupts = <105 IRQ_TYPE_LEVEL_HIGH>;
interrupt-parent = <&saplic>;
phys = <&usb2_phy>;
phy-names = "usb2-phy";
phy_type = "utmi";
snps,dis_enblslpm_quirk;
snps,dis_u2_susphy_quirk;
snps,dis-del-phy-power-chg-quirk;
snps,dis-tx-ipgap-linecheck-quirk;
dr_mode = "host";
maximum-speed = "high-speed";
status = "disabled";
};
usb2_phy: phy@c0a20000 {
compatible = "spacemit,k3-usb2-phy";
reg = <0x0 0xc0a20000 0x0 0x200>;
clocks = <&syscon_apmu CLK_APMU_USB2_BUS>;
#phy-cells = <0>;
status = "disabled";
};
eth0: ethernet@cac80000 {
compatible = "spacemit,k3-dwmac", "snps,dwmac-5.40a";
reg = <0x0 0xcac80000 0x0 0x2000>;