[PATCH] ARM: 2752/1: disable ixp2000 PCI I/O software workaround on chips that don't need it

Patch from Lennert Buytenhek

The later ixp2000 models don't need the PCI I/O workaround that we
currently perform.  Add a config option to disable the workaround,
and panic on boot if a kernel without the workaround is booted on a
buggy chip.  As only pre-production ixp2000s need the workaround,
the default is for it not to be configured in.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Deepak Saxena
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/asm-arm/arch-ixp2000/ixp2000-regs.h b/include/asm-arm/arch-ixp2000/ixp2000-regs.h
index a1d9e181b10f..5eb47d4bfbf6 100644
--- a/include/asm-arm/arch-ixp2000/ixp2000-regs.h
+++ b/include/asm-arm/arch-ixp2000/ixp2000-regs.h
@@ -241,7 +241,7 @@
 #define PCI_CONTROL_BE_DEI              (1 << 21)       /* Big Endian Data Enable In  */
 #define PCI_CONTROL_BE_BEO              (1 << 20)       /* Big Endian Byte Enable Out */
 #define PCI_CONTROL_BE_BEI              (1 << 19)       /* Big Endian Byte Enable In  */
-#define PCI_CONTROL_PNR                 (1 << 17)       /* PCI Not Reset bit */
+#define PCI_CONTROL_IEE                 (1 << 17)       /* I/O cycle Endian swap Enable */
 
 #define IXP2000_PCI_RST_REL             (1 << 2)
 #define CFG_RST_DIR                     (*IXP2000_PCI_CONTROL & IXP2000_PCICNTL_PCF)