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lmb: Reserve U-Boot separately if relocation is disabled

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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>
This commit is contained in:
Marek Vasut 2021-11-13 18:34:37 +01:00 • committed by Tom Rini
parent 47d7d03622
commit bd994c007a
1 changed files with 5 additions and 0 deletions
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5
lib/lmb.c
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@ -13,6 +13,7 @@
#include <malloc.h> #include <malloc.h>
#include <asm/global_data.h> #include <asm/global_data.h>
#include <asm/sections.h>
DECLARE_GLOBAL_DATA_PTR; 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; bank_end = end - 1;
lmb_reserve(lmb, sp, bank_end - sp + 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; break;
} }
} }