From: Marek Vasut marek.vasut+renesas@gmail.com

In case U-Boot starts with GD_FLG_SKIP_RELOC, the U-Boot code is not relocated, however the stack and heap is at the end of DRAM after relocation. Reserve a LMB area for the non-relocated U-Boot code so it won't be overwritten.

Signed-off-by: Marek Vasut marek.vasut+renesas@gmail.com Cc: Simon Glass sjg@chromium.org Cc: Tom Rini trini@konsulko.com --- V2: Make this fully generic V3: Cast _start to uintptr_t first --- lib/lmb.c | 5 +++++ 1 file changed, 5 insertions(+)

diff --git a/lib/lmb.c b/lib/lmb.c index 676b3a0bda..f72996a424 100644 --- a/lib/lmb.c +++ b/lib/lmb.c @@ -13,6 +13,7 @@ #include <malloc.h>

#include <asm/global_data.h> +#include <asm/sections.h>

DECLARE_GLOBAL_DATA_PTR;

@@ -144,6 +145,10 @@ void arch_lmb_reserve_generic(struct lmb *lmb, ulong sp, ulong end, ulong align) bank_end = end - 1;

lmb_reserve(lmb, sp, bank_end - sp + 1); + + if (gd->flags & GD_FLG_SKIP_RELOC) + lmb_reserve(lmb, (phys_addr_t)(uintptr_t)_start, gd->mon_len); + break; } }