Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Received-SPF: Fail (protection.outlook.com: domain of nxp.com does not
 designate 192.88.168.50 as permitted sender) receiver=protection.outlook.com;
 client-ip=192.88.168.50; helo=tx30smr01.am.freescale.net;
From:   Ran Wang <ran.wang_1@nxp.com>
To:     Felipe Balbi <balbi@kernel.org>, Shawn Guo <shawnguo@kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Rob Herring <robh+dt@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Russell King <linux@armlinux.org.uk>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>, Li Yang <leoyang.li@nxp.com>
CC:     <ran.wang_1@nxp.com>, <linux-usb@vger.kernel.org>,
        <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>
Subject: [PATCH v5 2/3] USB3/DWC3: Add property "snps,incr-burst-type-adjustment" for INCR burst type
Date:   Tue, 6 Mar 2018 16:59:10 +0800
Message-ID: <20180306085911.5930-2-ran.wang_1@nxp.com>
In-Reply-To: <20180306085911.5930-1-ran.wang_1@nxp.com>
References: <20180306085911.5930-1-ran.wang_1@nxp.com>
MIME-Version: 1.0
Content-Type: text/plain
SpamDiagnosticOutput: 1:99
SpamDiagnosticMetadata: NSPM
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Mar 2018 11:55:44.0135
 (UTC)
X-MS-Exchange-CrossTenant-Network-Message-Id: f60db63b-9702-4edf-8c74-08d58359312e
X-MS-Exchange-CrossTenant-Id: 5afe0b00-7697-4969-b663-5eab37d5f47e
X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=5afe0b00-7697-4969-b663-5eab37d5f47e;Ip=[192.88.168.50];Helo=[tx30smr01.am.freescale.net]
X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem
X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM2PR0301MB0605
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

Property "snps,incr-burst-type-adjustment = <x>, <y>..." for USB3.0 DWC3.
When only 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 platforms:
around 3% improvement (from 364MB/s to 375MB/s).

Signed-off-by: Changming Huang <jerry.huang@nxp.com>
Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
---
Changes in v5:
  - add support for ls1021a, ls1012a, ls1046a, ls1088a, ls1021a
  - update ls208xa support according to code base change
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-ls1012a.dtsi |    1 +
 arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi |    3 +++
 arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi |    3 +++
 arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi |    2 ++
 arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi |    2 ++
 7 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt b/Documentation/devicetree/bindings/usb/dwc3.txt
index 44e8bab..d1779b2 100644
--- a/Documentation/devicetree/bindings/usb/dwc3.txt
+++ b/Documentation/devicetree/bindings/usb/dwc3.txt
@@ -59,6 +59,11 @@ Optional properties:
 	fladj_30mhz_sdbnd signal is invalid or incorrect.
 
  - <DEPRECATED> 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.
 
  - in addition all properties from usb-xhci.txt from the current directory are
    supported as well
@@ -71,4 +76,5 @@ 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 c31dad9..b0c3f4f 100644
--- a/arch/arm/boot/dts/ls1021a.dtsi
+++ b/arch/arm/boot/dts/ls1021a.dtsi
@@ -705,6 +705,7 @@
 			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-ls1012a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
index 82b272f..4275a8f 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
@@ -464,6 +464,7 @@
 			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-ls1043a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi
index 380e7c7..0067567 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi
@@ -622,6 +622,7 @@
 			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 {
@@ -631,6 +632,7 @@
 			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 {
@@ -640,6 +642,7 @@
 			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-ls1046a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
index 06b5e12..2bf6756 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
@@ -602,6 +602,7 @@
 			dr_mode = "host";
 			snps,quirk-frame-length-adjustment = <0x20>;
 			snps,dis_rxdet_inp3_quirk;
+			snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>;
 		};
 
 		usb1: usb@3000000 {
@@ -611,6 +612,7 @@
 			dr_mode = "host";
 			snps,quirk-frame-length-adjustment = <0x20>;
 			snps,dis_rxdet_inp3_quirk;
+			snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>;
 		};
 
 		usb2: usb@3100000 {
@@ -620,6 +622,7 @@
 			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-ls1088a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
index 4fc150c..c2b5b45 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
@@ -478,6 +478,7 @@
 			dr_mode = "host";
 			snps,quirk-frame-length-adjustment = <0x20>;
 			snps,dis_rxdet_inp3_quirk;
+			snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>;
 			status = "disabled";
 		};
 
@@ -488,6 +489,7 @@
 			dr_mode = "host";
 			snps,quirk-frame-length-adjustment = <0x20>;
 			snps,dis_rxdet_inp3_quirk;
+			snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>;
 			status = "disabled";
 		};
 
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi
index f3a40af..d5b25f2 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi
@@ -754,6 +754,7 @@
 			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 {
@@ -764,6 +765,7 @@
 			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 {
-- 
1.7.1