POST: limit memory test area to not touch global data anymore

[people/ms/u-boot.git] / post / drivers / memory.c

diff --git a/post/drivers/memory.c b/post/drivers/memory.c
index a2c088bad8d5f3cf274b4e62085e9b664f96cedd..fbc349a852fba29e7484af7c664e1bd0ebd73a13 100644 (file)
--- a/post/drivers/memory.c
+++ b/post/drivers/memory.c
@@ -461,6 +461,9 @@ int memory_post_test (int flags)
        unsigned long memsize = (bd->bi_memsize >= 256 << 20 ?
                                 256 << 20 : bd->bi_memsize) - (1 << 20);
 
+       /* Limit area to be tested with the board info struct */
+       if (CFG_SDRAM_BASE + memsize > (ulong)bd)
+               memsize = (ulong)bd - CFG_SDRAM_BASE;
 
        if (flags & POST_SLOWTEST) {
                ret = memory_post_tests (CFG_SDRAM_BASE, memsize);