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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>
This commit is contained in:
Peter Chen 2015-09-30 10:17:17 +08:00 committed by Shawn Guo
parent 9493bf5458
commit 2b1a40e8d1
4 changed files with 24 additions and 0 deletions
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8
arch/arm/boot/dts/imx6qdl.dtsi
View File

@ -907,6 +907,8 @@ usbotg: usb@02184000 {
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 @@ usbh1: usb@02184200 {
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 @@ usbh2: usb@02184400 {
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 @@ usbh3: usb@02184600 {
fsl,usbmisc = <&usbmisc 3>;
dr_mode = "host";
ahb-burst-config = <0x0>;
tx-burst-size-dword = <0x10>;
rx-burst-size-dword = <0x10>;
status = "disabled";
};

6
arch/arm/boot/dts/imx6sl.dtsi
View File

@ -709,6 +709,8 @@ usbotg1: usb@02184000 {
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 @@ usbotg2: usb@02184200 {
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 @@ usbh: usb@02184400 {
fsl,usbmisc = <&usbmisc 2>;
dr_mode = "host";
ahb-burst-config = <0x0>;
tx-burst-size-dword = <0x10>;
rx-burst-size-dword = <0x10>;
status = "disabled";
};

6
arch/arm/boot/dts/imx6sx.dtsi
View File

@ -784,6 +784,8 @@ usbotg1: usb@02184000 {
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 @@ usbotg2: usb@02184200 {
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 @@ usbh: usb@02184400 {
fsl,anatop = <&anatop>;
dr_mode = "host";
ahb-burst-config = <0x0>;
tx-burst-size-dword = <0x10>;
rx-burst-size-dword = <0x10>;
status = "disabled";
};

4
arch/arm/boot/dts/imx6ul.dtsi
View File

@ -549,6 +549,8 @@ usbotg1: usb@02184000 {
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 @@ usbotg2: usb@02184200 {
fsl,usbphy = <&usbphy2>;
fsl,usbmisc = <&usbmisc 1>;
ahb-burst-config = <0x0>;
tx-burst-size-dword = <0x10>;
rx-burst-size-dword = <0x10>;
status = "disabled";
};