diff options
| author | Ye Li <[email protected]> | 2019-01-07 02:45:46 +0000 |
|---|---|---|
| committer | Marek Vasut <[email protected]> | 2019-01-09 16:03:56 +0100 |
| commit | 8c6cc71b40357dad4e3f21e9f1bd84db76a3d994 (patch) | |
| tree | 068c6a4f00949e6a3af6782320845207d64ddda8 /drivers | |
| parent | 54707a942009fae083dd78b58ff057127ba0e900 (diff) | |
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 xhci controller won't use it.
Signed-off-by: Ye Li <[email protected]>
Reviewed-by: Marek Vasut <[email protected]>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/host/xhci-mem.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index 04ab540695b..84c2c3344ad 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -369,6 +369,9 @@ 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(ctrl->dcbaa->dev_context_ptrs[0])); + page_size = xhci_readl(&hcor->or_pagesize) & 0xffff; for (i = 0; i < 16; i++) { if ((0x1 & page_size) != 0) |