From d49f120e27dc1689e11a14e9714e63a390dd4520 Mon Sep 17 00:00:00 2001 From: Chen-Yu Tsai Date: Tue, 4 May 2021 16:36:16 +0800 Subject: [PATCH] arm64: dts: rockchip: Enable USB3 Ethernet on rk3328 NanoPi R2S The NanoPi R2S has a Realtek RTL8153B USB 3.0 Ethernet chip connected to the USB 3.0 pins of the RK3328 SoC. Power to the chip is controlled by a GPIO line toggled transistor switch, which is not a full-blown voltage regulator. At least in Linux, the USB 3.0 XHCI controller has two ports: the first port is for legacy USB 2.0 and slower, while the second port is for USB 3.0. Since the Ethernet chip supports USB 3.0, it should be described as connected to the second port. Add the device nodes for the power switch and Ethernet chip, and enable the USB 3.0 controller. The USB device node follows the standard USB device binding. Signed-off-by: Chen-Yu Tsai Link: https://lore.kernel.org/r/20210504083616.9654-5-wens@kernel.org Signed-off-by: Heiko Stuebner --- .../boot/dts/rockchip/rk3328-nanopi-r2s.dts | 32 +++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s.dts b/arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s.dts index f807bc066ccb9..64cf07ee3d10c 100644 --- a/arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s.dts +++ b/arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s.dts @@ -14,6 +14,7 @@ compatible = "friendlyarm,nanopi-r2s", "rockchip,rk3328"; aliases { + ethernet1 = &rtl8153; mmc0 = &sdmmc; }; @@ -101,6 +102,18 @@ regulator-min-microvolt = <5000000>; regulator-max-microvolt = <5000000>; }; + + vdd_5v_lan: vdd-5v-lan { + compatible = "regulator-fixed"; + enable-active-high; + gpio = <&gpio2 RK_PC6 GPIO_ACTIVE_HIGH>; + pinctrl-0 = <&lan_vdd_pin>; + pinctrl-names = "default"; + regulator-name = "vdd_5v_lan"; + regulator-always-on; + regulator-boot-on; + vin-supply = <&vdd_5v>; + }; }; &cpu0 { @@ -309,6 +322,12 @@ }; }; + lan { + lan_vdd_pin: lan-vdd-pin { + rockchip,pins = <2 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>; + }; + }; + pmic { pmic_int_l: pmic-int-l { rockchip,pins = <1 RK_PD0 RK_FUNC_GPIO &pcfg_pull_up>; @@ -368,6 +387,19 @@ dr_mode = "host"; }; +&usbdrd3 { + dr_mode = "host"; + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + + /* Second port is for USB 3.0 */ + rtl8153: device@2 { + compatible = "usbbda,8153"; + reg = <2>; + }; +}; + &usb_host0_ehci { status = "okay"; }; -- 2.30.2