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authorPeter Chen2015-09-30 04:17:17 +0200
committerShawn Guo2015-12-22 13:41:51 +0100
commit2b1a40e8d182a9f7779ba4fe54c5b73980c215b0 (patch)
tree4c86dcd70c3a52570540d90568327ba60f364457 /arch/arm/boot/dts/imx6sx.dtsi
parentARM: dts: imx6: set ahb-burst-config as 0 for USB (diff)
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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>
Diffstat (limited to 'arch/arm/boot/dts/imx6sx.dtsi')
-rw-r--r--arch/arm/boot/dts/imx6sx.dtsi6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/imx6sx.dtsi b/arch/arm/boot/dts/imx6sx.dtsi
index ea29e2e45875..64608e2299f1 100644
--- 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";
};