| Reference code ""drivers/usb/ulpi/omap-ulpi-viewport.c" | |
| Contains the ulpi read write api's to perform | |
| any ulpi phy port access on omap platform. | |
| On omap ehci reg map contains INSNREG05_ULPI | |
| register which offers the ulpi phy access so | |
| any ulpi phy commands should be passsed using this | |
| register. | |
| omap-ulpi-viewport.c is a low level function | |
| implementation of "drivers/usb/ulpi/ulpi.c" | |
| To enable and use omap-ulpi-viewport.c | |
| we require CONFIG_USB_ULPI_VIEWPORT_OMAP and | |
| CONFIG_USB_ULPI be enabled in config file. | |
| Any ulpi ops request can be done with ulpi.c | |
| and soc specific binding and usage is done with | |
| omap-ulpi-viewport implementation. | |
| Ex: scenario: | |
| omap-ehci driver code requests for ulpi phy reset if | |
| ehci is used in phy mode, which will call ulpi phy reset | |
| the ulpi phy reset does ulpi_read/write from viewport | |
| implementation which will do ulpi reset using the | |
| INSNREG05_ULPI register. |