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From: Li Jun <jun.li@nxp.com>
To: robh+dt@kernel.org, shawnguo@kernel.org, balbi@kernel.org
Cc: krzk@kernel.org, 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, horia.geanta@nxp.com,
	qiangqing.zhang@nxp.com, peter.chen@nxp.com,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 1/4] dt-bindings: usb: dwc3-imx8mp: add imx8mp dwc3 glue bindings
Date: Sat,  3 Oct 2020 20:02:04 +0800	[thread overview]
Message-ID: <1601726527-23326-2-git-send-email-jun.li@nxp.com> (raw)
In-Reply-To: <1601726527-23326-1-git-send-email-jun.li@nxp.com>

NXP imx8mp integrates 2 dwc3 3.30b IP and add some wakeup logic
to support low power mode, the glue layer is for this wakeup
functionality, which has a separated interrupt, can support
wakeup from U3 and connect events for host, and vbus wakeup for
device.

Signed-off-by: Li Jun <jun.li@nxp.com>
---
 .../devicetree/bindings/usb/fsl,imx8mp-dwc3.yaml   | 105 +++++++++++++++++++++
 1 file changed, 105 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/fsl,imx8mp-dwc3.yaml b/Documentation/devicetree/bindings/usb/fsl,imx8mp-dwc3.yaml
new file mode 100644
index 0000000..cb4c6f6
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/fsl,imx8mp-dwc3.yaml
@@ -0,0 +1,105 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (c) 2020 NXP
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/fsl,imx8mp-dwc3.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP iMX8MP Soc USB Controller
+
+maintainers:
+  - Li Jun <jun.li@nxp.com>
+
+properties:
+  compatible:
+    const: fsl,imx8mp-dwc3
+
+  reg:
+    maxItems: 1
+    description: Address and length of the register set for the wrapper of
+      dwc3 core on the SOC.
+
+  "#address-cells":
+    enum: [ 1, 2 ]
+
+  "#size-cells":
+    enum: [ 1, 2 ]
+
+  dma-ranges:
+    description:
+      See section 2.3.9 of the DeviceTree Specification.
+
+  ranges: true
+
+  interrupts:
+    maxItems: 1
+    description: The interrupt that is asserted when a wakeup event is
+      received.
+
+  clocks:
+    description:
+      A list of phandle and clock-specifier pairs for the clocks
+      listed in clock-names.
+    items:
+      - description: system hsio root clock.
+      - description: suspend clock, used for usb wakeup logic.
+
+  clock-names:
+    items:
+      - const: hsio
+      - const: suspend
+
+# Required child node:
+
+patternProperties:
+  "^dwc3@[0-9a-f]+$":
+    type: object
+    description:
+      A child node must exist to represent the core DWC3 IP block
+      The content of the node is defined in dwc3.txt.
+
+required:
+  - compatible
+  - reg
+  - "#address-cells"
+  - "#size-cells"
+  - dma-ranges
+  - ranges
+  - clocks
+  - clock-names
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/imx8mp-clock.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    usb3_0: usb@32f10100 {
+      compatible = "fsl,imx8mp-dwc3";
+      reg = <0x32f10100 0x8>;
+      clocks = <&clk IMX8MP_CLK_HSIO_ROOT>,
+               <&clk IMX8MP_CLK_USB_ROOT>;
+      clock-names = "hsio", "suspend";
+      interrupts = <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>;
+      #address-cells = <1>;
+      #size-cells = <1>;
+      dma-ranges = <0x40000000 0x40000000 0xc0000000>;
+      ranges;
+
+      dwc3@38100000 {
+        compatible = "snps,dwc3";
+        reg = <0x38100000 0x10000>;
+        clocks = <&clk IMX8MP_CLK_HSIO_AXI>,
+                 <&clk IMX8MP_CLK_USB_CORE_REF>,
+                 <&clk IMX8MP_CLK_USB_ROOT>;
+        clock-names = "bus_early", "ref", "suspend";
+        assigned-clocks = <&clk IMX8MP_CLK_HSIO_AXI>;
+        assigned-clock-parents = <&clk IMX8MP_SYS_PLL2_500M>;
+        assigned-clock-rates = <500000000>;
+        interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
+        phys = <&usb3_phy0>, <&usb3_phy0>;
+        phy-names = "usb2-phy", "usb3-phy";
+        snps,dis-u2-freeclk-exists-quirk;
+      };
+    };
-- 
2.7.4


  reply	other threads:[~2020-10-03 12:07 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-03 12:02 [PATCH v5 0/4] add NXP imx8mp usb support Li Jun
2020-10-03 12:02 ` Li Jun [this message]
2020-10-04 13:44   ` [PATCH v5 1/4] dt-bindings: usb: dwc3-imx8mp: add imx8mp dwc3 glue bindings Krzysztof Kozlowski
2020-10-06 21:10   ` Rob Herring
2020-10-03 12:02 ` [PATCH v5 2/4] usb: dwc3: add imx8mp dwc3 glue layer driver Li Jun
2020-12-04  2:07   ` Jun Li
2020-10-03 12:02 ` [PATCH v5 3/4] arm64: dtsi: imx8mp: add usb nodes Li Jun
2020-10-03 12:02 ` [PATCH v5 4/4] arm64: dts: imx8mp-evk: enable usb1 as host mode Li Jun
2020-10-30  7:23 ` [PATCH v5 0/4] add NXP imx8mp usb support Shawn Guo

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