From 028d125a30ff5646b3ad22445080d8f2946d67d7 Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Tue, 2 May 2023 15:35:32 +0200 Subject: arm64: zynqmp: Fix usb reset over bootmode pins on zcu100 The commit 53ba1b2bdaf7 ("arm64: dts: zynqmp: Add mode-pin GPIO controller DT node") added usb phy reset over bootmode pins by default on usb0 only. zcu100 is using usb0 as peripheral and usb1 as host. Unfortunately reset line is shared for both usb ulpi phys but usb_rst_b is connected to usb5744 hub which is used only in host mode. Especially this chip requires reset to operate properly that's why better assign gpio reset to usb1 instead of usb0. Signed-off-by: Michal Simek Link: https://lore.kernel.org/r/d117473da3bab39a82fe900cecd8ca78df9adeda.1683034376.git.michal.simek@amd.com --- arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts b/arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts index c74bc3ff703b..685f8e4f33e7 100644 --- a/arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts +++ b/arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts @@ -545,6 +545,7 @@ pinctrl-0 = <&pinctrl_usb0_default>; phy-names = "usb3-phy"; phys = <&psgtr 2 PHY_TYPE_USB3 0 0>; + /delete-property/ reset-gpios; }; &dwc3_0 { @@ -560,6 +561,7 @@ pinctrl-0 = <&pinctrl_usb1_default>; phy-names = "usb3-phy"; phys = <&psgtr 3 PHY_TYPE_USB3 1 0>; + reset-gpios = <&modepin_gpio 1 GPIO_ACTIVE_LOW>; }; &dwc3_1 { -- cgit