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.majew...@samsung.com> Cc: Marek Vasut <ma...@denx.de> --- drivers/usb/gadget/s3c_udc_otg_xfer_dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/gadget/s3c_udc_otg_xfer_dma.c b/drivers/usb/gadget/s3c_udc_otg_xfer_dma.c index d7af5e9..5e3ba76 100644 --- a/drivers/usb/gadget/s3c_udc_otg_xfer_dma.c +++ b/drivers/usb/gadget/s3c_udc_otg_xfer_dma.c @@ -117,7 +117,7 @@ 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); + + ep->ep.maxpacket); if (length == 0) pktcnt = 1; -- 1.7.10.4 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot