From 013ace36f89b38c59a0adb5ffe215dab6eeabb2f Mon Sep 17 00:00:00 2001 From: Chen-Yu Tsai Date: Sat, 27 Aug 2016 15:55:44 +0800 Subject: [PATCH] ARM: dts: sun9i: a80-optimus: Disable EHCI1 EHCI1 provides an HSIC interface. This interface is exposed on the board through two pins among the GPIO header. With the PHY now powered up and responding, enabling the interface when nothing is connected results in a lot of error messages: usb 2-1: device descriptor read/64, error -71 usb 2-1: device descriptor read/64, error -71 usb 2-1: new high-speed USB device number 3 using ehci-platform usb 2-1: device descriptor read/64, error -71 usb 2-1: device descriptor read/64, error -71 usb 2-1: new high-speed USB device number 4 using ehci-platform usb 2-1: device not accepting address 4, error -71 usb 2-1: new high-speed USB device number 5 using ehci-platform usb 2-1: device not accepting address 5, error -71 usb usb2-port1: unable to enumerate USB device Disable it by default, but leave the entries in the board DTS. Signed-off-by: Chen-Yu Tsai Signed-off-by: Maxime Ripard --- arch/arm/boot/dts/sun9i-a80-optimus.dts | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/sun9i-a80-optimus.dts b/arch/arm/boot/dts/sun9i-a80-optimus.dts index d805cb50b5c8..ceb6ef15d669 100644 --- a/arch/arm/boot/dts/sun9i-a80-optimus.dts +++ b/arch/arm/boot/dts/sun9i-a80-optimus.dts @@ -112,7 +112,8 @@ &ehci0 { }; &ehci1 { - status = "okay"; + /* Enable if HSIC peripheral is connected */ + status = "disabled"; }; &ehci2 { @@ -484,7 +485,8 @@ &usbphy1 { &usbphy2 { phy-supply = <®_bldo4>; - status = "okay"; + /* Enable if HSIC peripheral is connected */ + status = "disabled"; }; &usbphy3 { -- 2.45.2