From fce7c276bfac33e57ad1d58ddbecc8bbf4fbdeb0 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Tue, 27 Sep 2011 18:29:31 +0900
Subject: [PATCH] ARM: mach-shmobile: sh7372 Mackerel NOR Flash USB boot fix
Always use CS0 shadow area for NOR flash instead of regular CS0
memory area on Mackerel.
When booting from CS0 NOR Flash the regular CS0 memory area is
available, but when booting via USB the MASK ROM gets mapped to
0x0 which gets in the way for the NOR Flash. Always using CS0
shadow area works well for both NOR Flash boot and USB boot.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
arch/arm/mach-shmobile/board-mackerel.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/mach-shmobile/board-mackerel.c b/arch/arm/mach-shmobile/board-mackerel.c
index 3689ad2e9156b..6c621c2ce0bcb 100644
--- a/arch/arm/mach-shmobile/board-mackerel.c
+++ b/arch/arm/mach-shmobile/board-mackerel.c
@@ -273,8 +273,8 @@ static struct physmap_flash_data nor_flash_data = {
static struct resource nor_flash_resources[] = {
[0] = {
- .start = 0x00000000,
- .end = 0x08000000 - 1,
+ .start = 0x20000000, /* CS0 shadow instead of regular CS0 */
+ .end = 0x28000000 - 1, /* needed by USB MASK ROM boot */
.flags = IORESOURCE_MEM,
}
};
--
2.39.5