The Amlogic A1 SoC Family embeds 1 USB Controllers:
- a DWC3 IP configured as Host for USB2 and USB3
A glue connects the controllers to the USB2 PHY of A1 SoC.
Signed-off-by: Hanjie Lin <hanjie.lin@xxxxxxxxxxx>
Signed-off-by: Yue Wang <yue.wang@xxxxxxxxxxx>
---
.../bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml | 57 +++++++++++++++++++---
1 file changed, 51 insertions(+), 6 deletions(-)
diff --git a/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml b/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml
index 4efb77b..6103cc2 100644
--- a/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml
+++ b/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml
@@ -9,6 +9,8 @@ title: Amlogic Meson G12A DWC3 USB SoC Controller Glue
maintainers:
- Neil Armstrong <narmstrong@xxxxxxxxxxxx>
+ - Hanjie Lin <hanjie.lin@xxxxxxxxxxx>
+ - Yue Wang <yue.wang@xxxxxxxxxxx>
description: |
The Amlogic G12A embeds a DWC3 USB IP Core configured for USB2 and USB3
@@ -22,10 +24,14 @@ description: |
The DWC3 Glue controls the PHY routing and power, an interrupt line is
connected to the Glue to serve as OTG ID change detection.
+ The Amlogic A1 embeds a DWC3 USB IP Core configured for USB2 in
+ host-only mode.
+
properties:
compatible:
enum:
- amlogic,meson-g12a-usb-ctrl
+ - amlogic,meson-a1-usb-ctrl
ranges: true
@@ -37,6 +43,11 @@ properties:
clocks:
minItems: 1
+ maxItems: 4
+
+ clock-names:
+ minItems: 1
+ maxItems: 4
resets:
minItems: 1
@@ -47,17 +58,22 @@ properties:
interrupts:
maxItems: 1
+ phys:
+ minItems: 1
+ maxItems: 3
+
phy-names:
items:
- const: usb2-phy0 # USB2 PHY0 if USBHOST_A port is used
- const: usb2-phy1 # USB2 PHY1 if USBOTG_B port is used
- const: usb3-phy0 # USB3 PHY if USB3_0 is used
- phys:
- minItems: 1
- maxItems: 3
-
- dr_mode: true
+ dr_mode:
+ description: usb mode for G12A
+ enum:
+ - host
+ - peripheral
+ - otg
power-domains:
maxItems: 1
@@ -80,9 +96,9 @@ required:
- resets
- reg
- interrupts
- - phy-names
- phys
- dr_mode
+ - phy-names
examples:
- |
@@ -124,4 +140,33 @@ examples:
snps,quirk-frame-length-adjustment;
};
};
+ - |
+ a1_usb: usb@ffe09000 {
+ status = "okay";
+ compatible = "amlogic,meson-a1-usb-ctrl";
+ reg = <0 0xffe09000 0x0 0xa0>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ clocks = <&clkc_periphs 36>,
+ <&clkc_periphs 85>,
+ <&clkc_periphs 2>,
+ <&clkc_periphs 3>;
+ clock-names = "usb_ctrl", "usb_bus", "xtal_usb_phy",
+ "xtal_usb_ctrl";
+
+ resets = <&reset 36>;
+
+ phys = <&usb2_phy1>;
+ phy-names = "usb2-phy1";
+
+ a1_dwc3: usb@ff400000 {
+ compatible = "snps,dwc3";
+ reg = <0xff400000 0x100000>;
+ interrupts = <0 90 4>;
+ dr_mode = "host";
+ snps,dis_u2_susphy_quirk;
+ snps,quirk-frame-length-adjustment = <0x20>;
+ };
+ };
--
2.7.4
