From: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Date: Tue, 26 Dec 2017 01:03:39 +0000 (+0900)
Subject: ARM: dts: uniphier: add has-transaction-translator property to usb node for LD4,... 
X-Git-Tag: v4.16-rc1~100^2~28^2
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=6fa9b0255099fcd289f7e3857714532843044c76;p=linux.git

ARM: dts: uniphier: add has-transaction-translator property to usb node for LD4, sLD8 and Pro4

When a full/low speed device is connected to USB 2.0 port on UniPhier SoC
that has ehci controller, the kernel shows the following messages.

| usb usb1-port1: Cannot enable. Maybe the USB cable is bad?
| usb usb1-port1: Cannot enable. Maybe the USB cable is bad?
| usb usb1-port1: Cannot enable. Maybe the USB cable is bad?
| usb usb1-port1: unable to enumerate USB device

To fix the issue, the driver needs to enable Transaction Translator on ehci
root hub. This adds 'has-transaction-translator' property to each node.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---

diff --git a/arch/arm/boot/dts/uniphier-ld4.dtsi b/arch/arm/boot/dts/uniphier-ld4.dtsi
index 7a8cb11c23a4..0459e84d4d8e 100644
--- a/arch/arm/boot/dts/uniphier-ld4.dtsi
+++ b/arch/arm/boot/dts/uniphier-ld4.dtsi
@@ -237,6 +237,7 @@ usb0: usb@5a800100 {
 				 <&mio_clk 12>;
 			resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 8>,
 				 <&mio_rst 12>;
+			has-transaction-translator;
 		};
 
 		usb1: usb@5a810100 {
@@ -250,6 +251,7 @@ usb1: usb@5a810100 {
 				 <&mio_clk 13>;
 			resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 9>,
 				 <&mio_rst 13>;
+			has-transaction-translator;
 		};
 
 		usb2: usb@5a820100 {
@@ -263,6 +265,7 @@ usb2: usb@5a820100 {
 				 <&mio_clk 14>;
 			resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 10>,
 				 <&mio_rst 14>;
+			has-transaction-translator;
 		};
 
 		soc-glue@5f800000 {
diff --git a/arch/arm/boot/dts/uniphier-pro4.dtsi b/arch/arm/boot/dts/uniphier-pro4.dtsi
index 843715bb08f8..1a29a8619856 100644
--- a/arch/arm/boot/dts/uniphier-pro4.dtsi
+++ b/arch/arm/boot/dts/uniphier-pro4.dtsi
@@ -271,6 +271,7 @@ usb2: usb@5a800100 {
 				 <&mio_clk 12>;
 			resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 8>,
 				 <&mio_rst 12>;
+			has-transaction-translator;
 		};
 
 		usb3: usb@5a810100 {
@@ -284,6 +285,7 @@ usb3: usb@5a810100 {
 				 <&mio_clk 13>;
 			resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 9>,
 				 <&mio_rst 13>;
+			has-transaction-translator;
 		};
 
 		soc-glue@5f800000 {
diff --git a/arch/arm/boot/dts/uniphier-sld8.dtsi b/arch/arm/boot/dts/uniphier-sld8.dtsi
index 1ac3d48398e5..bc8c24078faa 100644
--- a/arch/arm/boot/dts/uniphier-sld8.dtsi
+++ b/arch/arm/boot/dts/uniphier-sld8.dtsi
@@ -241,6 +241,7 @@ usb0: usb@5a800100 {
 				 <&mio_clk 12>;
 			resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 8>,
 				 <&mio_rst 12>;
+			has-transaction-translator;
 		};
 
 		usb1: usb@5a810100 {
@@ -254,6 +255,7 @@ usb1: usb@5a810100 {
 				 <&mio_clk 13>;
 			resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 9>,
 				 <&mio_rst 13>;
+			has-transaction-translator;
 		};
 
 		usb2: usb@5a820100 {
@@ -267,6 +269,7 @@ usb2: usb@5a820100 {
 				 <&mio_clk 14>;
 			resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 10>,
 				 <&mio_rst 14>;
+			has-transaction-translator;
 		};
 
 		soc-glue@5f800000 {