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Add a way to skip relocation

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When running U-Boot as an EFI application we cannot relocate since we do not
have relocation information. U-Boot has already been relocated to a suitable
address.

Add a global_data flag to control skipping relocation.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass
2015-08-04 12:33:39 -06:00
parent 7bea527160
commit f05ad9ba4c
2 changed files with 10 additions and 0 deletions
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9
common/board_f.c
View File

@@ -654,6 +654,8 @@ static int setup_dram_config(void)
static int reloc_fdt(void)
{
if (gd->flags & GD_FLG_SKIP_RELOC)
return 0;
if (gd->new_fdt) {
memcpy(gd->new_fdt, gd->fdt_blob, gd->fdt_size);
gd->fdt_blob = gd->new_fdt;
@@ -664,6 +666,11 @@ static int reloc_fdt(void)
static int setup_reloc(void)
{
if (gd->flags & GD_FLG_SKIP_RELOC) {
debug("Skipping relocation due to flag\n");
return 0;
}
#ifdef CONFIG_SYS_TEXT_BASE
gd->reloc_off = gd->relocaddr - CONFIG_SYS_TEXT_BASE;
#ifdef CONFIG_M68K
@@ -689,6 +696,8 @@ static int setup_reloc(void)
static int jump_to_copy(void)
{
if (gd->flags & GD_FLG_SKIP_RELOC)
return 0;
/*
* x86 is special, but in a nice way. It uses a trampoline which
* enables the dcache if possible.

1
include/asm-generic/global_data.h
View File

@@ -117,5 +117,6 @@ typedef struct global_data {
#define GD_FLG_SERIAL_READY 0x00100 /* Pre-reloc serial console ready */
#define GD_FLG_FULL_MALLOC_INIT 0x00200 /* Full malloc() is ready */
#define GD_FLG_SPL_INIT 0x00400 /* spl_init() has been called */
#define GD_FLG_SKIP_RELOC 0x00800 /* Don't relocate */
#endif /* __ASM_GENERIC_GBL_DATA_H */