From 83c93d656da7c22f6b88f04be1bce62ef8cd9fd2 Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Thu, 23 Apr 2009 12:24:50 +0000 Subject: [PATCH] add a workaround for the Synopsys EHCI core * http://www.mail-archive.com/linux-usb-devel@lists.sourceforge.net/msg45345.html SVN-Revision: 15348 --- ...usb-ehci-add-war-for-synopsys-hc-bug.patch | 22 +++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 target/linux/ar71xx/patches-2.6.28/110-usb-ehci-add-war-for-synopsys-hc-bug.patch diff --git a/target/linux/ar71xx/patches-2.6.28/110-usb-ehci-add-war-for-synopsys-hc-bug.patch b/target/linux/ar71xx/patches-2.6.28/110-usb-ehci-add-war-for-synopsys-hc-bug.patch new file mode 100644 index 0000000000..3aa2479dbe --- /dev/null +++ b/target/linux/ar71xx/patches-2.6.28/110-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 +@@ -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 */ + -- 2.30.2