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 e6d1359..42d62b0 100644 --- a/arch/arm/boot/dts/imx6qdl.dtsi +++ b/arch/arm/boot/dts/imx6qdl.dtsi @@ -853,6 +853,7 @@ clocks = <&clks IMX6QDL_CLK_USBOH3>; fsl,usbphy = <&usbphy1>; fsl,usbmisc = <&usbmisc 0>; + ahb-burst-config = <0x0>; status = "disabled"; }; @@ -864,6 +865,7 @@ fsl,usbphy = <&usbphy2>; fsl,usbmisc = <&usbmisc 1>; dr_mode = "host"; + ahb-burst-config = <0x0>; status = "disabled"; }; @@ -874,6 +876,7 @@ clocks = <&clks IMX6QDL_CLK_USBOH3>; fsl,usbmisc = <&usbmisc 2>; dr_mode = "host"; + ahb-burst-config = <0x0>; status = "disabled"; }; @@ -884,6 +887,7 @@ clocks = <&clks IMX6QDL_CLK_USBOH3>; fsl,usbmisc = <&usbmisc 3>; dr_mode = "host"; + ahb-burst-config = <0x0>; status = "disabled"; }; diff --git a/arch/arm/boot/dts/imx6sl.dtsi b/arch/arm/boot/dts/imx6sl.dtsi index a78e715..066fac9 100644 --- a/arch/arm/boot/dts/imx6sl.dtsi +++ b/arch/arm/boot/dts/imx6sl.dtsi @@ -688,6 +688,7 @@ clocks = <&clks IMX6SL_CLK_USBOH3>; fsl,usbphy = <&usbphy1>; fsl,usbmisc = <&usbmisc 0>; + ahb-burst-config = <0x0>; status = "disabled"; }; @@ -698,6 +699,7 @@ clocks = <&clks IMX6SL_CLK_USBOH3>; fsl,usbphy = <&usbphy2>; fsl,usbmisc = <&usbmisc 1>; + ahb-burst-config = <0x0>; status = "disabled"; }; @@ -708,6 +710,7 @@ clocks = <&clks IMX6SL_CLK_USBOH3>; fsl,usbmisc = <&usbmisc 2>; dr_mode = "host"; + ahb-burst-config = <0x0>; status = "disabled"; }; diff --git a/arch/arm/boot/dts/imx6sx.dtsi b/arch/arm/boot/dts/imx6sx.dtsi index 708175d..3656a1d 100644 --- a/arch/arm/boot/dts/imx6sx.dtsi +++ b/arch/arm/boot/dts/imx6sx.dtsi @@ -746,6 +746,7 @@ fsl,usbphy = <&usbphy1>; fsl,usbmisc = <&usbmisc 0>; fsl,anatop = <&anatop>; + ahb-burst-config = <0x0>; status = "disabled"; }; @@ -756,6 +757,7 @@ clocks = <&clks IMX6SX_CLK_USBOH3>; fsl,usbphy = <&usbphy2>; fsl,usbmisc = <&usbmisc 1>; + ahb-burst-config = <0x0>; status = "disabled"; }; @@ -768,6 +770,7 @@ phy_type = "hsic"; fsl,anatop = <&anatop>; dr_mode = "host"; + 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
