diff options
| author | Lukasz Majewski <l.majewski@samsung.com> | 2013-10-08 14:30:37 +0200 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2013-10-20 23:42:40 +0200 |
| commit | 57ffabe37114fe67f5ffac5805b343e4e1979b57 (patch) | |
| tree | 3491fb814c96cbbbb6a9f593587be4000c8986ed /drivers/usb/gadget/s3c_udc_otg_xfer_dma.c | |
| parent | 98f686c26f99776fafca55dbff6eb24045fa4108 (diff) | |
usb:udc:s3c: Reduce dcache invalidate range for UDC receive buffer
The s3c udc driver sends data in a max packet size. Therefore the dcache
invalidate range shall be equal to max packet, not the entire
DMA_BUFFER_SIZE.
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Cc: Marek Vasut <marex@denx.de>
Diffstat (limited to 'drivers/usb/gadget/s3c_udc_otg_xfer_dma.c')
| -rw-r--r-- | drivers/usb/gadget/s3c_udc_otg_xfer_dma.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/gadget/s3c_udc_otg_xfer_dma.c b/drivers/usb/gadget/s3c_udc_otg_xfer_dma.c index d7af5e9034..1cbf8f60a7 100644 --- a/drivers/usb/gadget/s3c_udc_otg_xfer_dma.c +++ b/drivers/usb/gadget/s3c_udc_otg_xfer_dma.c @@ -117,7 +117,8 @@ static int setdma_rx(struct s3c_ep *ep, struct s3c_request *req) invalidate_dcache_range((unsigned long) ep->dev->dma_buf[ep_num], (unsigned long) ep->dev->dma_buf[ep_num] - + DMA_BUFFER_SIZE); + + ROUND(ep->ep.maxpacket, + CONFIG_SYS_CACHELINE_SIZE)); if (length == 0) pktcnt = 1; |