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authorAlexandros C. Couloumbis <alex@ozo.com>2010-11-10 16:23:42 +0000
committerAlexandros C. Couloumbis <alex@ozo.com>2010-11-10 16:23:42 +0000
commit283e5476068c9072e4416e0b3181be2a3c5f2a93 (patch)
tree9faac6512fdb7dc7b2bc41ebd9ae8fcbb341aa7e /target/linux/ar71xx/patches-2.6.37/110-usb-ehci-add-war-for-synopsys-hc-bug.patch
parentae3afbb5cadd9901c5f9d8a82e9248e3c9de405f (diff)
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linux/ar71xx: add preliminary 2.6.37 kernel support
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@23944 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/ar71xx/patches-2.6.37/110-usb-ehci-add-war-for-synopsys-hc-bug.patch')
-rw-r--r--target/linux/ar71xx/patches-2.6.37/110-usb-ehci-add-war-for-synopsys-hc-bug.patch22
1 files changed, 22 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches-2.6.37/110-usb-ehci-add-war-for-synopsys-hc-bug.patch b/target/linux/ar71xx/patches-2.6.37/110-usb-ehci-add-war-for-synopsys-hc-bug.patch
new file mode 100644
index 0000000000..047239d5cc
--- /dev/null
+++ b/target/linux/ar71xx/patches-2.6.37/110-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
+@@ -1193,6 +1193,9 @@ 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
+@@ -131,6 +131,7 @@ struct ehci_hcd { /* one per controlle
+ unsigned need_io_watchdog:1;
+ unsigned broken_periodic:1;
+ unsigned fs_i_thresh:1; /* Intel iso scheduling */
++ unsigned has_synopsys_hc_bug:1; /* Synopsys HC */
+
+ /* required for usb32 quirk */
+ #define OHCI_CTRL_HCFS (3 << 6)