musb-new: am35x backend driver
authorIlya Yanok <ilya.yanok@cogentembedded.com>
Tue, 6 Nov 2012 13:48:25 +0000 (13:48 +0000)
committerMarek Vasut <marex@denx.de>
Mon, 19 Nov 2012 23:16:07 +0000 (00:16 +0100)
commit833a53c627b839a28b5925ba283109b141f6cff0
treefb0f303fa61f432e1d2f27323ed2729626cb2527
parentd2aa1154b95a211416c1511005451dfcf076dd97
musb-new: am35x backend driver

Backend driver for MUSB OTG controllers found on TI AM35x.

It seems that on AM35X interrupt status registers can be updated
_before_ core registers. As we don't use true interrupts in U-Boot
and poll interrupt status registers instead this can result in
interrupt handler being called with non-updated core registers.
This confuses the code and result in hanged transfers.
Add a small delay in am35x_interrupt as a workaround.

Signed-off-by: Ilya Yanok <ilya.yanok@cogentembedded.com>
arch/arm/include/asm/omap_musb.h
drivers/usb/musb-new/Makefile
drivers/usb/musb-new/am35x.c [new file with mode: 0644]
drivers/usb/musb-new/linux-compat.h
include/usb.h