diff options
| author | Ye Li <ye.li@nxp.com> | 2018-04-20 01:48:25 -0700 |
|---|---|---|
| committer | Ye Li <ye.li@nxp.com> | 2018-04-27 06:14:51 -0700 |
| commit | 0533fa7e8d9a538fb2d3816cb54d5159f8868a85 (patch) | |
| tree | 5a99784acdb4a41c0a69331428fdb7d32d8a4411 | |
| parent | 67d4a7dbe1b9a9584d9ef5f6e208a6e411aa6cd4 (diff) | |
MLK-18161-20 usb: xhci-mem: Fix scratchpad array issue
After updating the value of dev_context_ptrs[0], we should flush this
from cache to memory. Otherwise the controller won't use it.
Signed-off-by: Ye Li <ye.li@nxp.com>
| -rw-r--r-- | drivers/usb/host/xhci-mem.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index 0582a9be40..2f6abbf448 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -370,6 +370,8 @@ static int xhci_scratchpad_alloc(struct xhci_ctrl *ctrl) ctrl->dcbaa->dev_context_ptrs[0] = cpu_to_le64((uintptr_t)scratchpad->sp_array); + xhci_flush_cache((uintptr_t)&ctrl->dcbaa->dev_context_ptrs[0], sizeof(__le64)); + page_size = xhci_readl(&hcor->or_pagesize) & 0xffff; for (i = 0; i < 16; i++) { if ((0x1 & page_size) != 0) |