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usb: dwc2_udc_otg: support 8-bit interface 

Define CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8 to allow the
physical interface to be 8-bit (rather than 16-bit).

Signed-off-by: Steve Rae <srae@broadcom.com>
This commit is contained in:
Steve Rae 2016-06-07 15:35:21 -07:00 committed by Marek Vasut
parent 6b3943f1b0
commit f221db0ed5
2 changed files with 14 additions and 0 deletions
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10
drivers/usb/gadget/Kconfig
View File

@ -52,6 +52,16 @@ config USB_GADGET_DWC2_OTG
driver to operate in Peripheral mode. This option requires driver to operate in Peripheral mode. This option requires
USB_GADGET to be enabled. USB_GADGET to be enabled.
if USB_GADGET_DWC2_OTG
config USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8
bool "DesignWare USB2.0 HS OTG controller 8-bit PHY bus width"
help
Set the Designware USB2.0 high-speed OTG controller
PHY interface width to 8 bits, rather than the default (16 bits).
endif # USB_GADGET_DWC2_OTG
config CI_UDC config CI_UDC
bool "ChipIdea device controller" bool "ChipIdea device controller"
select USB_GADGET_DUALSPEED select USB_GADGET_DUALSPEED

4
drivers/usb/gadget/dwc2_udc_otg.c
View File

@ -415,7 +415,11 @@ static void reconfig_usbd(struct dwc2_udc *dev)
|0<<7 /* Ulpi DDR sel*/ |0<<7 /* Ulpi DDR sel*/
|0<<6 /* 0: high speed utmi+, 1: full speed serial*/ |0<<6 /* 0: high speed utmi+, 1: full speed serial*/
|0<<4 /* 0: utmi+, 1:ulpi*/ |0<<4 /* 0: utmi+, 1:ulpi*/
#ifdef CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8
|0<<3 /* phy i/f 0:8bit, 1:16bit*/
#else
|1<<3 /* phy i/f 0:8bit, 1:16bit*/ |1<<3 /* phy i/f 0:8bit, 1:16bit*/
#endif
|0x7<<0; /* HS/FS Timeout**/ |0x7<<0; /* HS/FS Timeout**/
if (dev->pdata->usb_gusbcfg) if (dev->pdata->usb_gusbcfg)