qi-hardware/openwrt-xburst
1
0
Fork 0
mirror of git://projects.qi-hardware.com/openwrt-xburst.git synced 2024-11-27 16:43:09 +02:00
Code

[ar71xx] add a workaround for the Synopsys EHCI core

Browse Source 
* http://www.mail-archive.com/linux-usb-devel@lists.sourceforge.net/msg45345.html

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@15348 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
juhosg 2009-04-23 12:24:50 +00:00
parent a80896837f
commit d56f83e536
1 changed files with 22 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
target/linux/ar71xx/patches-2.6.28/110-usb-ehci-add-war-for-synopsys-hc-bug.patch Normal file
View File

@ -0,0 +1,22 @@
--- a/drivers/usb/host/ehci-q.c
+++ b/drivers/usb/host/ehci-q.c
@@ -1050,6 +1050,9 @@ 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
@@ -124,6 +124,7 @@ struct ehci_hcd { /* one per controlle
unsigned has_fsl_port_bug:1; /* FreeScale */
unsigned big_endian_mmio:1;
unsigned big_endian_desc:1;
+ unsigned has_synopsys_hc_bug:1; /* Synopsys HC */
u8 sbrn; /* packed release number */