commit 40acc095302aee380491df5f58d98945243468ec
author Li Yang <leoli@freescale.com> Wed May 23 13:58:17 2007 -0700
committer Linus Torvalds <torvalds@woody.linux-foundation.org> Wed May 23 20:14:15 2007 -0700
tree 51ca963c899f744f5b947b66ba76ba618b66ecb3
parent 3d6ac9843175c1d29c075794519cb045b52e46c2

ehci-fsl: fix cache coherency problem on system with large memory

The patch fixes bug http://bugzilla.kernel.org/show_bug.cgi?id=7482.

It sets USB snooping on 4G space for PowerPC platforms without
CONFIG_NOT_COHERENT_CACHE defined.

Reported-by: Stefan Meyer <reyems@telkomsa.net>
Signed-off-by: Li Yang <leoli@freescale.com>
Cc: Greg KH <greg@kroah.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/usb/host/ehci-fsl.h

diff --git a/drivers/usb/host/ehci-fsl.h b/drivers/usb/host/ehci-fsl.h
index f28736a..b5e59db 100644
--- a/drivers/usb/host/ehci-fsl.h
+++ b/drivers/usb/host/ehci-fsl.h
@@ -34,4 +34,5 @@
 #define FSL_SOC_USB_PRICTRL	0x40c	/* NOTE: big-endian */
 #define FSL_SOC_USB_SICTRL	0x410	/* NOTE: big-endian */
 #define FSL_SOC_USB_CTRL	0x500	/* NOTE: big-endian */
+#define SNOOP_SIZE_2GB		0x1e
 #endif				/* _EHCI_FSL_H */