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-rw-r--r--lib_ppc/board.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/lib_ppc/board.c b/lib_ppc/board.c
index ee0213e..3ab22f8 100644
--- a/lib_ppc/board.c
+++ b/lib_ppc/board.c
@@ -433,7 +433,18 @@ void board_init_f (ulong bootflag)
*/
len = (ulong)&_end - CFG_MONITOR_BASE;
+#ifndef CONFIG_MAX_MEM_MAPPED
+#define CONFIG_MAX_MEM_MAPPED (256 << 20)
+#endif
+
+#ifndef CONFIG_VERY_BIG_RAM
addr = CFG_SDRAM_BASE + get_effective_memsize();
+#else
+ /* only allow stack below 256M */
+ addr = CFG_SDRAM_BASE +
+ (gd->ram_size > CONFIG_MAX_MEM_MAPPED) ?
+ CONFIG_MAX_MEM_MAPPED : get_effective_memsize();
+#endif
#ifdef CONFIG_LOGBUFFER
#ifndef CONFIG_ALT_LB_ADDR