From: Paul Brook <paul@codesourcery.com>
Date: Sun, 24 Sep 2006 15:54:40 +0000 (+0100)
Subject: [ARM] 3860/1: Versatile PCI config byte accesses
X-Git-Tag: v3.12-rc1~33657^2~19
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c06015148fa9a3cc452ec7121b8c3f59f4a7d6ac;p=kernel%2Fkernel-generic.git

[ARM] 3860/1: Versatile PCI config byte accesses

The ARM Versatile board PCI config space read routines are broken for byte
accesses.  The access uses a byte read, so masking the bottom two bits of the
address is wrong.

I guess this is a cut/paste error from the the halfword code which uses
aligned word access+shift+mask.

Signed-off-by: Paul Brook <paul@codesourcery.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/arch/arm/mach-versatile/pci.c b/arch/arm/mach-versatile/pci.c
index 41b3700..13bbd08 100644
--- a/arch/arm/mach-versatile/pci.c
+++ b/arch/arm/mach-versatile/pci.c
@@ -117,7 +117,6 @@ static int versatile_read_config(struct pci_bus *bus, unsigned int devfn, int wh
 	} else {
 		switch (size) {
 		case 1:
-			addr &= ~3;
 			v = __raw_readb(addr);
 			break;