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| author | Ilya Yanok <ilya.yanok@cogentembedded.com> | 2012-11-06 13:48:25 +0000 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2012-11-20 00:16:07 +0100 |
| commit | 833a53c627b839a28b5925ba283109b141f6cff0 (patch) | |
| tree | fb0f303fa61f432e1d2f27323ed2729626cb2527 /include | |
| parent | d2aa1154b95a211416c1511005451dfcf076dd97 (diff) | |
| download | u-boot-imx-833a53c627b839a28b5925ba283109b141f6cff0.zip u-boot-imx-833a53c627b839a28b5925ba283109b141f6cff0.tar.gz u-boot-imx-833a53c627b839a28b5925ba283109b141f6cff0.tar.bz2 | |
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/usb.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/usb.h b/include/usb.h index aa389e6..bf510e4 100644 --- a/include/usb.h +++ b/include/usb.h @@ -148,7 +148,7 @@ struct usb_device { defined(CONFIG_USB_R8A66597_HCD) || defined(CONFIG_USB_DAVINCI) || \ defined(CONFIG_USB_OMAP3) || defined(CONFIG_USB_DA8XX) || \ defined(CONFIG_USB_BLACKFIN) || defined(CONFIG_USB_AM35X) || \ - defined(CONFIG_USB_MUSB_DSPS) + defined(CONFIG_USB_MUSB_DSPS) || defined(CONFIG_USB_MUSB_AM35X) int usb_lowlevel_init(int index, void **controller); int usb_lowlevel_stop(int index); |