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authorRajithaY <rajithax.yerrumsetty@intel.com>2017-04-25 03:31:15 -0700
committerRajitha Yerrumchetty <rajithax.yerrumsetty@intel.com>2017-05-22 06:48:08 +0000
commitbb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch)
treeca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/roms/u-boot/doc/README.omap-ulpi-viewport
parenta14b48d18a9ed03ec191cf16b162206998a895ce (diff)
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to kvmfornfv repo and make use of the updated latest qemu for the execution of all testcase Change-Id: I1280af507a857675c7f81d30c95255635667bdd7 Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/roms/u-boot/doc/README.omap-ulpi-viewport')
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diff --git a/qemu/roms/u-boot/doc/README.omap-ulpi-viewport b/qemu/roms/u-boot/doc/README.omap-ulpi-viewport
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-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.