ARM: dts: imx6: change default burst size for USB

It can improve the USB performance when choosing larger
burst size at some systems (bus size is larger), there is
no side effect if this burst size is larger than bus size.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi
index 3234eb9..b98a416 100644 (file)
--- a/arch/arm/boot/dts/imx6qdl.dtsi
+++ b/arch/arm/boot/dts/imx6qdl.dtsi
@@ -907,6 +907,8 @@
                                fsl,usbphy = <&usbphy1>;
                                fsl,usbmisc = <&usbmisc 0>;
                                ahb-burst-config = <0x0>;
+                               tx-burst-size-dword = <0x10>;
+                               rx-burst-size-dword = <0x10>;
                                status = "disabled";
                        };
 
@@ -919,6 +921,8 @@
                                fsl,usbmisc = <&usbmisc 1>;
                                dr_mode = "host";
                                ahb-burst-config = <0x0>;
+                               tx-burst-size-dword = <0x10>;
+                               rx-burst-size-dword = <0x10>;
                                status = "disabled";
                        };
 
@@ -930,6 +934,8 @@
                                fsl,usbmisc = <&usbmisc 2>;
                                dr_mode = "host";
                                ahb-burst-config = <0x0>;
+                               tx-burst-size-dword = <0x10>;
+                               rx-burst-size-dword = <0x10>;
                                status = "disabled";
                        };
 
@@ -941,6 +947,8 @@
                                fsl,usbmisc = <&usbmisc 3>;
                                dr_mode = "host";
                                ahb-burst-config = <0x0>;
+                               tx-burst-size-dword = <0x10>;
+                               rx-burst-size-dword = <0x10>;
                                status = "disabled";
                        };
 

diff --git a/arch/arm/boot/dts/imx6sl.dtsi b/arch/arm/boot/dts/imx6sl.dtsi
index 3e8653a..ebeae8f 100644 (file)
--- a/arch/arm/boot/dts/imx6sl.dtsi
+++ b/arch/arm/boot/dts/imx6sl.dtsi
@@ -709,6 +709,8 @@
                                fsl,usbphy = <&usbphy1>;
                                fsl,usbmisc = <&usbmisc 0>;
                                ahb-burst-config = <0x0>;
+                               tx-burst-size-dword = <0x10>;
+                               rx-burst-size-dword = <0x10>;
                                status = "disabled";
                        };
 
@@ -720,6 +722,8 @@
                                fsl,usbphy = <&usbphy2>;
                                fsl,usbmisc = <&usbmisc 1>;
                                ahb-burst-config = <0x0>;
+                               tx-burst-size-dword = <0x10>;
+                               rx-burst-size-dword = <0x10>;
                                status = "disabled";
                        };
 
@@ -731,6 +735,8 @@
                                fsl,usbmisc = <&usbmisc 2>;
                                dr_mode = "host";
                                ahb-burst-config = <0x0>;
+                               tx-burst-size-dword = <0x10>;
+                               rx-burst-size-dword = <0x10>;
                                status = "disabled";
                        };
 

diff --git a/arch/arm/boot/dts/imx6sx.dtsi b/arch/arm/boot/dts/imx6sx.dtsi
index ea29e2e..64608e2 100644 (file)
--- a/arch/arm/boot/dts/imx6sx.dtsi
+++ b/arch/arm/boot/dts/imx6sx.dtsi
@@ -784,6 +784,8 @@
                                fsl,usbmisc = <&usbmisc 0>;
                                fsl,anatop = <&anatop>;
                                ahb-burst-config = <0x0>;
+                               tx-burst-size-dword = <0x10>;
+                               rx-burst-size-dword = <0x10>;
                                status = "disabled";
                        };
 
@@ -795,6 +797,8 @@
                                fsl,usbphy = <&usbphy2>;
                                fsl,usbmisc = <&usbmisc 1>;
                                ahb-burst-config = <0x0>;
+                               tx-burst-size-dword = <0x10>;
+                               rx-burst-size-dword = <0x10>;
                                status = "disabled";
                        };
 
@@ -808,6 +812,8 @@
                                fsl,anatop = <&anatop>;
                                dr_mode = "host";
                                ahb-burst-config = <0x0>;
+                               tx-burst-size-dword = <0x10>;
+                               rx-burst-size-dword = <0x10>;
                                status = "disabled";
                        };
 

diff --git a/arch/arm/boot/dts/imx6ul.dtsi b/arch/arm/boot/dts/imx6ul.dtsi
index 9b83f76..0e9716b 100644 (file)
--- a/arch/arm/boot/dts/imx6ul.dtsi
+++ b/arch/arm/boot/dts/imx6ul.dtsi
@@ -549,6 +549,8 @@
                                fsl,usbmisc = <&usbmisc 0>;
                                fsl,anatop = <&anatop>;
                                ahb-burst-config = <0x0>;
+                               tx-burst-size-dword = <0x10>;
+                               rx-burst-size-dword = <0x10>;
                                status = "disabled";
                        };
 
@@ -560,6 +562,8 @@
                                fsl,usbphy = <&usbphy2>;
                                fsl,usbmisc = <&usbmisc 1>;
                                ahb-burst-config = <0x0>;
+                               tx-burst-size-dword = <0x10>;
+                               rx-burst-size-dword = <0x10>;
                                status = "disabled";
                        };