After setting ahb burst configuration as 0, we can increase tx/rx burst size, it will improve the USB performance Signed-off-by: Peter Chen <peter.chen@xxxxxxxxxxxxx> --- arch/arm/boot/dts/imx6qdl.dtsi | 4 ++++ arch/arm/boot/dts/imx6sl.dtsi | 3 +++ arch/arm/boot/dts/imx6sx.dtsi | 3 +++ 3 files changed, 10 insertions(+) diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi index d6c69ec..2430cc9 100644 --- a/arch/arm/boot/dts/imx6qdl.dtsi +++ b/arch/arm/boot/dts/imx6qdl.dtsi @@ -835,6 +835,7 @@ clocks = <&clks IMX6QDL_CLK_USBOH3>; fsl,usbphy = <&usbphy1>; fsl,usbmisc = <&usbmisc 0>; + ahb-burst-config = <0x0>; status = "disabled"; }; @@ -845,6 +846,7 @@ clocks = <&clks IMX6QDL_CLK_USBOH3>; fsl,usbphy = <&usbphy2>; fsl,usbmisc = <&usbmisc 1>; + ahb-burst-config = <0x0>; status = "disabled"; }; @@ -854,6 +856,7 @@ interrupts = <0 41 IRQ_TYPE_LEVEL_HIGH>; clocks = <&clks IMX6QDL_CLK_USBOH3>; fsl,usbmisc = <&usbmisc 2>; + ahb-burst-config = <0x0>; status = "disabled"; }; @@ -863,6 +866,7 @@ interrupts = <0 42 IRQ_TYPE_LEVEL_HIGH>; clocks = <&clks IMX6QDL_CLK_USBOH3>; fsl,usbmisc = <&usbmisc 3>; + ahb-burst-config = <0x0>; status = "disabled"; }; diff --git a/arch/arm/boot/dts/imx6sl.dtsi b/arch/arm/boot/dts/imx6sl.dtsi index 36ab8e0..9f283cc 100644 --- a/arch/arm/boot/dts/imx6sl.dtsi +++ b/arch/arm/boot/dts/imx6sl.dtsi @@ -680,6 +680,7 @@ clocks = <&clks IMX6SL_CLK_USBOH3>; fsl,usbphy = <&usbphy1>; fsl,usbmisc = <&usbmisc 0>; + ahb-burst-config = <0x0>; status = "disabled"; }; @@ -690,6 +691,7 @@ clocks = <&clks IMX6SL_CLK_USBOH3>; fsl,usbphy = <&usbphy2>; fsl,usbmisc = <&usbmisc 1>; + ahb-burst-config = <0x0>; status = "disabled"; }; @@ -699,6 +701,7 @@ interrupts = <0 40 IRQ_TYPE_LEVEL_HIGH>; clocks = <&clks IMX6SL_CLK_USBOH3>; fsl,usbmisc = <&usbmisc 2>; + ahb-burst-config = <0x0>; status = "disabled"; }; diff --git a/arch/arm/boot/dts/imx6sx.dtsi b/arch/arm/boot/dts/imx6sx.dtsi index 7a24fee..0cdfa01 100644 --- a/arch/arm/boot/dts/imx6sx.dtsi +++ b/arch/arm/boot/dts/imx6sx.dtsi @@ -742,6 +742,7 @@ fsl,usbphy = <&usbphy1>; fsl,usbmisc = <&usbmisc 0>; fsl,anatop = <&anatop>; + ahb-burst-config = <0x0>; status = "disabled"; }; @@ -752,6 +753,7 @@ clocks = <&clks IMX6SX_CLK_USBOH3>; fsl,usbphy = <&usbphy2>; fsl,usbmisc = <&usbmisc 1>; + ahb-burst-config = <0x0>; status = "disabled"; }; @@ -763,6 +765,7 @@ fsl,usbmisc = <&usbmisc 2>; phy_type = "hsic"; fsl,anatop = <&anatop>; + ahb-burst-config = <0x0>; status = "disabled"; }; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
