[PATCH] arm: fix IXP4xx flash resource range

We are currently reserving one byte more than actually needed by the flash
device and overlapping into the next I/O expansion bus window.  This a)
causes us to allocate an extra page of VM due to ARM ioremap() alignment
code and b) could cause problems if another driver tries to request the
next expansion bus window.

Signed-off-by: Deepak Saxena <dsaxena@plexity.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/arch/arm/mach-ixp4xx/coyote-setup.c b/arch/arm/mach-ixp4xx/coyote-setup.c
index 7f58afb27e71c4b81471966a846d3c0021b0e0e0..411ea999619055a7b0e73bd3678ecd9ad8806989 100644 (file)
--- a/arch/arm/mach-ixp4xx/coyote-setup.c
+++ b/arch/arm/mach-ixp4xx/coyote-setup.c
@@ -36,7 +36,7 @@ static struct flash_platform_data coyote_flash_data = {
 
 static struct resource coyote_flash_resource = {
        .start          = COYOTE_FLASH_BASE,
-       .end            = COYOTE_FLASH_BASE + COYOTE_FLASH_SIZE,
+       .end            = COYOTE_FLASH_BASE + COYOTE_FLASH_SIZE - 1,
        .flags          = IORESOURCE_MEM,
 };
 

diff --git a/arch/arm/mach-ixp4xx/gtwx5715-setup.c b/arch/arm/mach-ixp4xx/gtwx5715-setup.c
index 65e356bd10d6ec76312101280ad5d13ab3dedfa4..333459d6aa464bb5394fd46783e9b6690b6ed4aa 100644 (file)
--- a/arch/arm/mach-ixp4xx/gtwx5715-setup.c
+++ b/arch/arm/mach-ixp4xx/gtwx5715-setup.c
@@ -114,7 +114,7 @@ static struct flash_platform_data gtwx5715_flash_data = {
 
 static struct resource gtwx5715_flash_resource = {
        .start          = GTWX5715_FLASH_BASE,
-       .end            = GTWX5715_FLASH_BASE + GTWX5715_FLASH_SIZE,
+       .end            = GTWX5715_FLASH_BASE + GTWX5715_FLASH_SIZE - 1,
        .flags          = IORESOURCE_MEM,
 };
 

diff --git a/arch/arm/mach-ixp4xx/ixdp425-setup.c b/arch/arm/mach-ixp4xx/ixdp425-setup.c
index 4633470a6a3738c5181d9dce7a2ccd02c041fe6d..fa0646c8693b096c7c1ee6b6a16dc3074bff2679 100644 (file)
--- a/arch/arm/mach-ixp4xx/ixdp425-setup.c
+++ b/arch/arm/mach-ixp4xx/ixdp425-setup.c
@@ -36,7 +36,7 @@ static struct flash_platform_data ixdp425_flash_data = {
 
 static struct resource ixdp425_flash_resource = {
        .start          = IXDP425_FLASH_BASE,
-       .end            = IXDP425_FLASH_BASE + IXDP425_FLASH_SIZE,
+       .end            = IXDP425_FLASH_BASE + IXDP425_FLASH_SIZE - 1,
        .flags          = IORESOURCE_MEM,
 };