Dear Lukasz Majewski, > 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);
Is this maxpacket _always_ multiple of cacheline big or will you need some ROUND_UP() call here ? Best regards, Marek Vasut _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
