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Commit 24a28e42 authored by Roland Stigge's avatar Roland Stigge Committed by Greg Kroah-Hartman
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USB: gadget driver for LPC32xx 



This patch adds a USB gadget driver for the LPC32xx ARM SoC.

Signed-off-by: default avatarRoland Stigge <stigge@antcom.de>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 8b7c3b68

Documentation/devicetree/bindings/usb/lpc32xx-udc.txt

0 → 100644
+28 −0
Original line number Diff line number Diff line 
* NXP LPC32xx SoC USB Device Controller (UDC)



Required properties:

- compatible: Must be "nxp,lpc3220-udc"

- reg: Physical base address of the controller and length of memory mapped

  region.

- interrupts: The USB interrupts:

              * USB Device Low Priority Interrupt

              * USB Device High Priority Interrupt

              * USB Device DMA Interrupt

              * External USB Transceiver Interrupt (OTG ATX)

- transceiver: phandle of the associated ISP1301 device - this is necessary for

               the UDC controller for connecting to the USB physical layer



Example:



	isp1301: usb-transceiver@2c {

		compatible = "nxp,isp1301";

		reg = <0x2c>;

	};



	usbd@31020000 {

		compatible = "nxp,lpc3220-udc";

		reg = <0x31020000 0x300>;

		interrupt-parent = <&mic>;

		interrupts = <0x3d 0>, <0x3e 0>, <0x3c 0>, <0x3a 0>;

		transceiver = <&isp1301>;

	};

drivers/usb/gadget/Kconfig

+11 −0
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@@ -147,6 +147,17 @@ config USB_AT91 
	   dynamically linked module called "at91_udc" and force all

	   gadget drivers to also be dynamically linked.



config USB_LPC32XX

	tristate "LPC32XX USB Peripheral Controller"

	depends on ARCH_LPC32XX

	select USB_ISP1301

	help

	   This option selects the USB device controller in the LPC32xx SoC.



	   Say "y" to link the driver statically, or "m" to build a

	   dynamically linked module called "lpc32xx_udc" and force all

	   gadget drivers to also be dynamically linked.



config USB_ATMEL_USBA

	tristate "Atmel USBA"

	select USB_GADGET_DUALSPEED

drivers/usb/gadget/Makefile

+1 −0
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@@ -26,6 +26,7 @@ obj-$(CONFIG_USB_CI13XXX_PCI) += ci13xxx_pci.o 
obj-$(CONFIG_USB_S3C_HSOTG)	+= s3c-hsotg.o

obj-$(CONFIG_USB_S3C_HSUDC)	+= s3c-hsudc.o

obj-$(CONFIG_USB_LANGWELL)	+= langwell_udc.o

obj-$(CONFIG_USB_LPC32XX)	+= lpc32xx_udc.o

obj-$(CONFIG_USB_EG20T)		+= pch_udc.o

obj-$(CONFIG_USB_MV_UDC)	+= mv_udc.o

mv_udc-y			:= mv_udc_core.o

drivers/usb/gadget/gadget_chips.h

+3 −0
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@@ -37,6 +37,7 @@ 
#define gadget_is_goku(g)		(!strcmp("goku_udc", (g)->name))

#define gadget_is_imx(g)		(!strcmp("imx_udc", (g)->name))

#define gadget_is_langwell(g)		(!strcmp("langwell_udc", (g)->name))

#define gadget_is_lpc32xx(g)		(!strcmp("lpc32xx_udc", (g)->name))

#define gadget_is_m66592(g)		(!strcmp("m66592_udc", (g)->name))

#define gadget_is_musbhdrc(g)		(!strcmp("musb-hdrc", (g)->name))

#define gadget_is_net2272(g)		(!strcmp("net2272", (g)->name))
@@ -118,6 +119,8 @@ static inline int usb_gadget_controller_number(struct usb_gadget *gadget) 
		return 0x31;

	else if (gadget_is_dwc3(gadget))

		return 0x32;

	else if (gadget_is_lpc32xx(gadget))

		return 0x33;



	return -ENOENT;

}