Commit 744543c5 authored by Hans de Goede's avatar Hans de Goede Committed by Felipe Balbi
Browse files

usb: musb: sunxi: Add support for the Allwinner sunxi musb controller 



This is based on initial code to get the Allwinner sunxi musb controller
supported by Chen-Yu Tsai and Roman Byshko.

This adds support for the Allwinner sunxi musb controller in both host only
and otg mode. Peripheral only mode is not supported, as no boards use that.

This has been tested on a cubietruck (A20 SoC) and an UTOO P66 tablet
(A13 SoC) with a variety of devices in host mode and with the g_serial gadget
driver in peripheral mode, plugging otg / host cables in/out a lot of times
in all possible imaginable plug orders.

Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 4cfbd952

Documentation/devicetree/bindings/usb/allwinner,sun4i-a10-musb.txt

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Allwinner sun4i A10 musb DRC/OTG controller

-------------------------------------------



Required properties:

 - compatible      : "allwinner,sun4i-a10-musb"

 - reg             : mmio address range of the musb controller

 - clocks          : clock specifier for the musb controller ahb gate clock

 - interrupts      : interrupt to which the musb controller is connected

 - interrupt-names : must be "mc"

 - phys            : phy specifier for the otg phy

 - phy-names       : must be "usb"

 - dr_mode         : Dual-Role mode must be "host" or "otg"

 - extcon          : extcon specifier for the otg phy



Example:



	usb_otg: usb@01c13000 {

		compatible = "allwinner,sun4i-a10-musb";

		reg = <0x01c13000 0x0400>;

		clocks = <&ahb_gates 0>;

		interrupts = <38>;

		interrupt-names = "mc";

		phys = <&usbphy 0>;

		phy-names = "usb";

		extcon = <&usbphy 0>;

		status = "disabled";

	};

drivers/usb/musb/Kconfig

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@@ -5,7 +5,7 @@ 


# (M)HDRC = (Multipoint) Highspeed Dual-Role Controller

config USB_MUSB_HDRC

	tristate 'Inventra Highspeed Dual Role Controller (TI, ADI, ...)'

	tristate 'Inventra Highspeed Dual Role Controller (TI, ADI, AW, ...)'

	depends on (USB || USB_GADGET)

	help

	  Say Y here if your system has a dual role high speed USB
@@ -20,6 +20,8 @@ config USB_MUSB_HDRC 
	  Analog Devices parts using this IP include Blackfin BF54x,

	  BF525 and BF527.



	  Allwinner SoCs using this IP include A10, A13, A20, ...



	  If you do not know what this is, please say N.



	  To compile this driver as a module, choose M here; the
@@ -60,6 +62,15 @@ endchoice 


comment "Platform Glue Layer"



config USB_MUSB_SUNXI

	tristate "Allwinner (sunxi)"

	depends on ARCH_SUNXI

	depends on NOP_USB_XCEIV

	depends on PHY_SUN4I_USB

	depends on EXTCON

	depends on GENERIC_PHY

	select SUNXI_SRAM



config USB_MUSB_DAVINCI

	tristate "DaVinci"

	depends on ARCH_DAVINCI_DMx

drivers/usb/musb/Makefile

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@@ -20,6 +20,7 @@ obj-$(CONFIG_USB_MUSB_DA8XX) += da8xx.o 
obj-$(CONFIG_USB_MUSB_BLACKFIN)			+= blackfin.o

obj-$(CONFIG_USB_MUSB_UX500)			+= ux500.o

obj-$(CONFIG_USB_MUSB_JZ4740)			+= jz4740.o

obj-$(CONFIG_USB_MUSB_SUNXI)			+= sunxi.o





obj-$(CONFIG_USB_MUSB_AM335X_CHILD)		+= musb_am335x.o

drivers/usb/musb/sunxi.c

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File added.

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