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| author | Marek Vasut <marex@denx.de> | 2013-07-10 03:16:43 +0200 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2013-07-29 23:01:33 +0200 |
| commit | 6dd30af0fa5c2f509f6f789789151268bdfcde0c (patch) | |
| tree | 3478096a1ef9c17cb2ce09f0d3e55849afe34ecc /include/usb | |
| parent | f19a343e732f4fd7ca0b0e067a1bfba930621553 (diff) | |
| download | u-boot-imx-6dd30af0fa5c2f509f6f789789151268bdfcde0c.zip u-boot-imx-6dd30af0fa5c2f509f6f789789151268bdfcde0c.tar.gz u-boot-imx-6dd30af0fa5c2f509f6f789789151268bdfcde0c.tar.bz2 | |
usb: mv_udc: Add bounce buffer
The requests sent to the controller are not properly cache aligned
most of the time, thus implement a simple bounce buffer to avoid
problem with cache.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Lei Wen <leiwen@marvell.com>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'include/usb')
| -rw-r--r-- | include/usb/mv_udc.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/usb/mv_udc.h b/include/usb/mv_udc.h index c1761b0..c71516c 100644 --- a/include/usb/mv_udc.h +++ b/include/usb/mv_udc.h @@ -66,9 +66,13 @@ struct mv_udc { struct mv_ep { struct usb_ep ep; - struct usb_request req; struct list_head queue; const struct usb_endpoint_descriptor *desc; + + struct usb_request req; + uint8_t *b_buf; + uint32_t b_len; + uint8_t b_fast[64] __aligned(ARCH_DMA_MINALIGN); }; struct mv_drv { |