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From: Li Jun <jun.li@nxp.com>
To: robh+dt@kernel.org, shawnguo@kernel.org, balbi@kernel.org,
	mathias.nyman@intel.com
Cc: gregkh@linuxfoundation.org, s.hauer@pengutronix.de,
	kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com,
	Anson.Huang@nxp.com, jun.li@nxp.com, aisheng.dong@nxp.com,
	peng.fan@nxp.com, fugang.duan@nxp.com, qiangqing.zhang@nxp.com,
	horia.geanta@nxp.com, linux-usb@vger.kernel.org,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 1/6] dt-bindings: usb: xhci: add property to disable xhci 64bit support
Date: Tue, 22 Sep 2020 18:46:47 +0800	[thread overview]
Message-ID: <1600771612-30727-2-git-send-email-jun.li@nxp.com> (raw)
In-Reply-To: <1600771612-30727-1-git-send-email-jun.li@nxp.com>

Add a property "xhci-64bit-support-disable" to disable xhci 64bit address
dma, some SoC integration may not support 64bit DMA but the AC64 bit
(bit 0) of HCCPARAMS1 is kept to be 1.

Signed-off-by: Li Jun <jun.li@nxp.com>
---
 Documentation/devicetree/bindings/usb/usb-xhci.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.txt b/Documentation/devicetree/bindings/usb/usb-xhci.txt
index 0c5cff8..26446fb 100644
--- a/Documentation/devicetree/bindings/usb/usb-xhci.txt
+++ b/Documentation/devicetree/bindings/usb/usb-xhci.txt
@@ -28,6 +28,9 @@ Optional properties:
   - quirk-broken-port-ped: set if the controller has broken port disable mechanism
   - imod-interval-ns: default interrupt moderation interval is 5000ns
   - phys : see usb-hcd.yaml in the current directory
+  - xhci-64bit-support-disable: set if the AC64 bit (bit 0) of HCCPARAMS1 is
+    set to be 1, but the controller actually can't handle 64-bit address
+    due to SoC integration.
 
 additionally the properties from usb-hcd.yaml (in the current directory) are
 supported.
-- 
2.7.4


WARNING: multiple messages have this Message-ID (diff)
From: Li Jun <jun.li@nxp.com>
To: robh+dt@kernel.org, shawnguo@kernel.org, balbi@kernel.org,
	mathias.nyman@intel.com
Cc: aisheng.dong@nxp.com, devicetree@vger.kernel.org,
	peng.fan@nxp.com, fugang.duan@nxp.com, horia.geanta@nxp.com,
	Anson.Huang@nxp.com, gregkh@linuxfoundation.org,
	s.hauer@pengutronix.de, linux-usb@vger.kernel.org,
	qiangqing.zhang@nxp.com, linux-imx@nxp.com,
	kernel@pengutronix.de, festevam@gmail.com,
	linux-arm-kernel@lists.infradead.org, jun.li@nxp.com
Subject: [PATCH v3 1/6] dt-bindings: usb: xhci: add property to disable xhci 64bit support
Date: Tue, 22 Sep 2020 18:46:47 +0800	[thread overview]
Message-ID: <1600771612-30727-2-git-send-email-jun.li@nxp.com> (raw)
In-Reply-To: <1600771612-30727-1-git-send-email-jun.li@nxp.com>

Add a property "xhci-64bit-support-disable" to disable xhci 64bit address
dma, some SoC integration may not support 64bit DMA but the AC64 bit
(bit 0) of HCCPARAMS1 is kept to be 1.

Signed-off-by: Li Jun <jun.li@nxp.com>
---
 Documentation/devicetree/bindings/usb/usb-xhci.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.txt b/Documentation/devicetree/bindings/usb/usb-xhci.txt
index 0c5cff8..26446fb 100644
--- a/Documentation/devicetree/bindings/usb/usb-xhci.txt
+++ b/Documentation/devicetree/bindings/usb/usb-xhci.txt
@@ -28,6 +28,9 @@ Optional properties:
   - quirk-broken-port-ped: set if the controller has broken port disable mechanism
   - imod-interval-ns: default interrupt moderation interval is 5000ns
   - phys : see usb-hcd.yaml in the current directory
+  - xhci-64bit-support-disable: set if the AC64 bit (bit 0) of HCCPARAMS1 is
+    set to be 1, but the controller actually can't handle 64-bit address
+    due to SoC integration.
 
 additionally the properties from usb-hcd.yaml (in the current directory) are
 supported.
-- 
2.7.4


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2020-09-22 10:54 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-22 10:46 [PATCH v3 0/6] add NXP imx8mp usb support Li Jun
2020-09-22 10:46 ` Li Jun
2020-09-22 10:46 ` Li Jun [this message]
2020-09-22 10:46   ` [PATCH v3 1/6] dt-bindings: usb: xhci: add property to disable xhci 64bit support Li Jun
2020-09-29 18:11   ` Rob Herring
2020-09-29 18:11     ` Rob Herring
2020-10-02 16:39     ` Jun Li
2020-10-02 16:39       ` Jun Li
2020-09-22 10:46 ` [PATCH v3 2/6] usb: host: xhci-plat: add support of XHCI_NO_64BIT_SUPPORT via property Li Jun
2020-09-22 10:46   ` Li Jun
2020-09-22 10:46 ` [PATCH v3 3/6] dt-bindings: usb: dwc3-imx8mp: add imx8mp dwc3 glue bindings Li Jun
2020-09-22 10:46   ` Li Jun
2020-09-22 14:32   ` Krzysztof Kozlowski
2020-09-22 14:32     ` Krzysztof Kozlowski
2020-09-22 16:45     ` Jun Li
2020-09-22 16:45       ` Jun Li
2020-09-22 18:22       ` Krzysztof Kozlowski
2020-09-22 18:22         ` Krzysztof Kozlowski
2020-09-22 10:46 ` [PATCH v3 4/6] usb: dwc3: add imx8mp dwc3 glue layer driver Li Jun
2020-09-22 10:46   ` Li Jun
2020-09-22 10:46 ` [PATCH v3 5/6] arm64: dtsi: imx8mp: add usb nodes Li Jun
2020-09-22 10:46   ` Li Jun
2020-09-22 14:39   ` Krzysztof Kozlowski
2020-09-22 14:39     ` Krzysztof Kozlowski
2020-09-23  7:50   ` Sascha Hauer
2020-09-23  7:50     ` Sascha Hauer
2020-09-23  8:49     ` Jun Li
2020-09-23  8:49       ` Jun Li
2020-09-22 10:46 ` [PATCH v3 6/6] arm64: dts: imx8mp-evk: enable usb1 as host mode Li Jun
2020-09-22 10:46   ` Li Jun

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