From 5cca72f8b342c8a65eaebda22647572394d98535 Mon Sep 17 00:00:00 2001
From: Amit Virdi <amit.virdi@st.com>
Date: Mon, 7 May 2012 13:06:39 +0530
Subject: [PATCH] SPEAr: Fix ARM relocation support
While the u-boot code is running from the flash, it is essential that no access
is made to the bss segment. This is due to the fact that .rel.dyn and .bss areas
overlap and former contains information used in relocation. In SPEAr, this was
not taken into consideration. As a result, while the relocation wasn't complete,
dram_init populated an uninitialized global variable resulting in corruption of
.rel.dyn area, which resulted in u-boot crash.
This commit fixes this problem by removing code that accesses bss segment
Signed-off-by: Amit Virdi <amit.virdi@st.com>
Acked-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
---
board/spear/common/spr_misc.c | 20 +-------------------
1 file changed, 1 insertion(+), 19 deletions(-)
diff --git a/board/spear/common/spr_misc.c b/board/spear/common/spr_misc.c
index 0812c20b8c..3ab278f83a 100644
--- a/board/spear/common/spr_misc.c
+++ b/board/spear/common/spr_misc.c
@@ -40,27 +40,9 @@ static struct chip_data chip_data;
int dram_init(void)
{
- struct xloader_table *xloader_tb =
- (struct xloader_table *)XLOADER_TABLE_ADDRESS;
- struct xloader_table_1_1 *table_1_1;
- struct xloader_table_1_2 *table_1_2;
- struct chip_data *chip = &chip_data;
-
+ /* Store complete RAM size and return */
gd->ram_size = get_ram_size(PHYS_SDRAM_1, PHYS_SDRAM_1_MAXSIZE);
- if (XLOADER_TABLE_VERSION_1_1 == xloader_tb->table_version) {
- table_1_1 = &xloader_tb->table.table_1_1;
- chip->dramfreq = table_1_1->ddrfreq;
- chip->dramtype = table_1_1->ddrtype;
-
- } else if (XLOADER_TABLE_VERSION_1_2 == xloader_tb->table_version) {
- table_1_2 = &xloader_tb->table.table_1_2;
- chip->dramfreq = table_1_2->ddrfreq;
- chip->dramtype = table_1_2->ddrtype;
- } else {
- chip->dramfreq = -1;
- }
-
return 0;
}
--
2.39.5