mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-07 13:44:29 +00:00
78fe97b96e
Add dt-binding for MediaTek USB3 DRD Driver which it's ported
from the Linux kernel DTS binding:
Documentation/devicetree/bindings/usb/mediatek,mtu3.txt
Commit ID:
34d0545978b6 ("dt-bindings: usb: mtu3: fix typo of DMA clock name")
Due to Dual-Role switch is not supported in Uboot, some properties
are removed or changed.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
79 lines
2.6 KiB
Text
79 lines
2.6 KiB
Text
The device node for Mediatek USB3 DRD controller
|
|
|
|
Required properties:
|
|
- compatible : should be "mediatek,<soc-model>-mtu3", "mediatek,mtu3",
|
|
soc-model is the name of SoC, such as mt8512 etc,
|
|
when using "mediatek,mtu3" compatible string, you need SoC specific
|
|
ones in addition, one of:
|
|
- "mediatek,mt8512-mtu3"
|
|
- reg : specifies physical base address and size of the registers
|
|
- reg-names: should be
|
|
- "ippc" : IP Port Control
|
|
- power-domains : a phandle to USB power domain node to control USB's MTCMOS
|
|
- clocks : a list of phandle + clock-specifier pairs, one for each
|
|
entry in clock-names
|
|
- clock-names : must contain "sys_ck" for clock of controller,
|
|
the following clocks are optional:
|
|
"ref_ck", "mcu_ck", "dma_ck" and "xhci_ck";
|
|
- phys : list of all the USB PHYs on this HCD
|
|
- #address-cells, #size-cells : used for sub-nodes with 'reg' property
|
|
- ranges : allows valid 1:1 translation between child's address space and
|
|
parent's address space
|
|
|
|
Optional properties:
|
|
- vusb33-supply : regulator of USB AVDD3.3v
|
|
- vbus-supply : regulator of VBUS 5v, needed when supports host mode.
|
|
|
|
Sub-nodes:
|
|
Required properties:
|
|
- compatible : should be "mediatek,ssusb"
|
|
- reg : specifies physical base address and size of the registers
|
|
- reg-names: should be
|
|
- "mac" : SSUSB MAC, include xHCI and device
|
|
- interrupts : interrupt used by xHCI or device
|
|
- dr_mode : should be one of "host" or "peripheral",
|
|
see : usb/generic.txt
|
|
|
|
Optional properties:
|
|
- pinctrl-names : a pinctrl state named "default" is optional
|
|
- pinctrl-0 : pin control group
|
|
See: pinctrl/pinctrl-bindings.txt
|
|
|
|
- device mode:
|
|
- maximum-speed : valid arguments are "full-speed", "high-speed",
|
|
"super-speed" and "super-speed-plus",
|
|
see: usb/generic.txt
|
|
- mediatek,force-vbus : force vbus as valid by SW
|
|
|
|
- host mode (dr_mode is "host"):
|
|
- mediatek,u3p-dis-msk : mask to disable u3ports, bit0 for u3port0,
|
|
bit1 for u3port1, ... etc;
|
|
|
|
Example:
|
|
usb3: usb@11213e00 {
|
|
compatible = "mediatek,mt8512-mtu3", "mediatek,mtu3";
|
|
reg = <0x11213e00 0x0100>;
|
|
reg-names = "ippc";
|
|
phys = <&u2port0 PHY_TYPE_USB2>, <&u2port1 PHY_TYPE_USB2>;
|
|
power-domains = <&scpsys MT8512_POWER_DOMAIN_USB>;
|
|
clocks = <&infracfg CLK_INFRA_USB_SYS>,
|
|
<&topckgen CLK_TOP_SSUSB_TOP_CK_EN>,
|
|
<&infracfg CLK_INFRA_ICUSB>;
|
|
clock-names = "sys_ck", "ref_ck", "mcu_ck";
|
|
vusb33-supply = <reg_3p3v>;
|
|
vbus-supply = <&usb_p0_vbus>;
|
|
#address-cells = <1>;
|
|
#size-cells = <1>;
|
|
ranges;
|
|
status = "disabled";
|
|
|
|
ssusb: usb@11210000 {
|
|
compatible = "mediatek,ssusb";
|
|
reg = <0x11210000 0x3e00>;
|
|
interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_LOW>;
|
|
reg-names = "mac";
|
|
dr_mode = "peripheral";
|
|
maximum-speed = "high-speed";
|
|
status = "disabled";
|
|
};
|
|
};
|