diff options
Diffstat (limited to 'target/linux/ar71xx/patches-2.6.38/110-usb-ehci-add-war-for-synopsys-hc-bug.patch')
| -rw-r--r-- | target/linux/ar71xx/patches-2.6.38/110-usb-ehci-add-war-for-synopsys-hc-bug.patch | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches-2.6.38/110-usb-ehci-add-war-for-synopsys-hc-bug.patch b/target/linux/ar71xx/patches-2.6.38/110-usb-ehci-add-war-for-synopsys-hc-bug.patch new file mode 100644 index 0000000000..aeec79ce4e --- /dev/null +++ b/target/linux/ar71xx/patches-2.6.38/110-usb-ehci-add-war-for-synopsys-hc-bug.patch @@ -0,0 +1,22 @@ +--- a/drivers/usb/host/ehci-q.c ++++ b/drivers/usb/host/ehci-q.c +@@ -1181,6 +1181,9 @@ static void end_unlink_async (struct ehc + ehci->reclaim = NULL; + start_unlink_async (ehci, next); + } ++ ++ if (ehci->has_synopsys_hc_bug) ++ writel((u32)ehci->async->qh_dma, &ehci->regs->async_next); + } + + /* makes sure the async qh will become idle */ +--- a/drivers/usb/host/ehci.h ++++ b/drivers/usb/host/ehci.h +@@ -134,6 +134,7 @@ struct ehci_hcd { /* one per controlle + unsigned amd_l1_fix:1; + unsigned fs_i_thresh:1; /* Intel iso scheduling */ + unsigned use_dummy_qh:1; /* AMD Frame List table quirk*/ ++ unsigned has_synopsys_hc_bug:1; /* Synopsys HC */ + + /* required for usb32 quirk */ + #define OHCI_CTRL_HCFS (3 << 6) |