summaryrefslogtreecommitdiffstats
path: root/target/linux/ar71xx/patches-2.6.38/110-usb-ehci-add-war-for-synopsys-hc-bug.patch
diff options
context:
space:
mode:
authoracoul <acoul@3c298f89-4303-0410-b956-a3cf2f4a3e73>2011-04-21 11:45:23 +0000
committeracoul <acoul@3c298f89-4303-0410-b956-a3cf2f4a3e73>2011-04-21 11:45:23 +0000
commitdfba2f5fb19c96511b4f389a65492be66b908f07 (patch)
tree912dc32f5b0f567d85207f81071f02a9f36f6f28 /target/linux/ar71xx/patches-2.6.38/110-usb-ehci-add-war-for-synopsys-hc-bug.patch
parente7a09675219049d52769218ee228b5b5d9bea5dd (diff)
linux/ar71xx: add 2.6.38 preliminary support
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26746 3c298f89-4303-0410-b956-a3cf2f4a3e73
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.patch22
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 000000000..aeec79ce4
--- /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)