From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751553AbdARIZh (ORCPT ); Wed, 18 Jan 2017 03:25:37 -0500 Received: from mail-cys01nam02on0062.outbound.protection.outlook.com ([104.47.37.62]:54880 "EHLO NAM02-CY1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751311AbdARIZa (ORCPT ); Wed, 18 Jan 2017 03:25:30 -0500 Authentication-Results: spf=fail (sender IP is 192.88.158.2) smtp.mailfrom=nxp.com; nxp.com; dkim=none (message not signed) header.d=none;nxp.com; dmarc=fail action=none header.from=nxp.com;nxp.com; dkim=none (message not signed) header.d=none; From: Changming Huang To: , , , CC: , , , , Changming Huang Subject: [PATCH v4 2/3] USB3/DWC3: Add property "snps,incr-burst-type-adjustment" for INCR burst type Date: Wed, 18 Jan 2017 16:12:17 +0800 Message-ID: <1484727138-3264-2-git-send-email-jerry.huang@nxp.com> X-Mailer: git-send-email 1.7.9.5 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linux-kernel@vger.kernel.org Property "snps,incr-burst-type-adjustment = , ..." for USB3.0 DWC3. When Just one value means INCRx mode with fix burst type. When more than one value, means undefined length burst mode, USB controller can use the length less than or equal to the largest enabled burst length. While enabling undefined length INCR burst type and INCR16 burst type, get better write performance on NXP Layerscape platform: around 3% improvement (from 364MB/s to 375MB/s). Signed-off-by: Changming Huang --- Changes in v4: - change definition for this property. Changes in v3: - add new property for INCR burst in usb node. Documentation/devicetree/bindings/usb/dwc3.txt | 6 ++++++ arch/arm/boot/dts/ls1021a.dtsi | 1 + arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi | 3 +++ arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi | 2 ++ 4 files changed, 12 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt b/Documentation/devicetree/bindings/usb/dwc3.txt index e3e6983..a68dbfc 100644 --- a/Documentation/devicetree/bindings/usb/dwc3.txt +++ b/Documentation/devicetree/bindings/usb/dwc3.txt @@ -55,6 +55,11 @@ Optional properties: fladj_30mhz_sdbnd signal is invalid or incorrect. - tx-fifo-resize: determines if the FIFO *has* to be reallocated. + - snps,incr-burst-type-adjustment: Value for INCR burst type of GSBUSCFG0 + register, undefined length INCR burst type enable and INCRx type. + When just one value, which means INCRX burst mode. When more than one + value, which means undefined length INCR burst type enabled. + The values can be 1, 4, 8, 16, 32, 64, 128 and 256. This is usually a subnode to DWC3 glue to which it is connected. @@ -63,4 +68,5 @@ dwc3@4a030000 { reg = <0x4a030000 0xcfff>; interrupts = <0 92 4> usb-phy = <&usb2_phy>, <&usb3,phy>; + snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>; }; diff --git a/arch/arm/boot/dts/ls1021a.dtsi b/arch/arm/boot/dts/ls1021a.dtsi index 368e219..6eee0d5 100644 --- a/arch/arm/boot/dts/ls1021a.dtsi +++ b/arch/arm/boot/dts/ls1021a.dtsi @@ -627,6 +627,7 @@ dr_mode = "host"; snps,quirk-frame-length-adjustment = <0x20>; snps,dis_rxdet_inp3_quirk; + snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>; }; pcie@3400000 { diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi index 97d331e..04ffd66 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi +++ b/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi @@ -482,6 +482,7 @@ dr_mode = "host"; snps,quirk-frame-length-adjustment = <0x20>; snps,dis_rxdet_inp3_quirk; + snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>; }; usb1: usb3@3000000 { @@ -491,6 +492,7 @@ dr_mode = "host"; snps,quirk-frame-length-adjustment = <0x20>; snps,dis_rxdet_inp3_quirk; + snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>; }; usb2: usb3@3100000 { @@ -500,6 +502,7 @@ dr_mode = "host"; snps,quirk-frame-length-adjustment = <0x20>; snps,dis_rxdet_inp3_quirk; + snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>; }; sata: sata@3200000 { diff --git a/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi index d058e56..902cc93 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi +++ b/arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi @@ -710,6 +710,7 @@ dr_mode = "host"; snps,quirk-frame-length-adjustment = <0x20>; snps,dis_rxdet_inp3_quirk; + snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>; }; usb1: usb3@3110000 { @@ -720,6 +721,7 @@ dr_mode = "host"; snps,quirk-frame-length-adjustment = <0x20>; snps,dis_rxdet_inp3_quirk; + snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>; }; ccn@4000000 { -- 1.7.9.5