diff options
| author | Seung-Woo Kim <sw0312.kim@samsung.com> | 2017-07-31 18:08:10 +0900 |
|---|---|---|
| committer | Marek Vasut <marek.vasut+renesas@gmail.com> | 2017-09-27 12:12:23 +0200 |
| commit | a939af0c748e2ea1eeb8cf47fa9771a95786de70 (patch) | |
| tree | 84c35261edc472d88660f6599d472b1fb347924e /drivers/usb | |
| parent | 2e5026a2f022f1c5ab5e879684a895ccdca7690c (diff) | |
usb: dwc2: Align size of invalidating dcache before starting DMA
During using dwc2 usb gadget, if usb message size is too small,
following cache misaligned warning is shown:
CACHE: Misaligned operation at range [bfdbcb00, bfdbcb04]
Align size of invalidating dcache before starting DMA to remove the
warning.
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c b/drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c index 0d6d2fba8a..b6164afa92 100644 --- a/drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c +++ b/drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c @@ -111,7 +111,8 @@ static int setdma_rx(struct dwc2_ep *ep, struct dwc2_request *req) ctrl = readl(®->out_endp[ep_num].doepctl); invalidate_dcache_range((unsigned long) ep->dma_buf, - (unsigned long) ep->dma_buf + ep->len); + (unsigned long) ep->dma_buf + + ROUND(ep->len, CONFIG_SYS_CACHELINE_SIZE)); writel((unsigned int) ep->dma_buf, ®->out_endp[ep_num].doepdma); writel(DOEPT_SIZ_PKT_CNT(pktcnt) | DOEPT_SIZ_XFER_SIZE(length), |