Hi Bin,
On 22 July 2015 at 21:41, Bin Meng bmeng.cn@gmail.com wrote:
Hi Simon,
On Wed, Jul 22, 2015 at 11:48 PM, Simon Glass sjg@chromium.org wrote:
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
common/board_f.c | 7 +++++++ include/asm-generic/global_data.h | 1 + 2 files changed, 8 insertions(+)
diff --git a/common/board_f.c b/common/board_f.c index 21be26f..5e09c5f 100644 --- a/common/board_f.c +++ b/common/board_f.c @@ -664,6 +664,11 @@ 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 +694,8 @@ 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.diff --git a/include/asm-generic/global_data.h b/include/asm-generic/global_data.h index db0550b..086ee96 100644 --- a/include/asm-generic/global_data.h +++ b/include/asm-generic/global_data.h @@ -116,5 +116,6 @@ typedef struct global_data { #define GD_FLG_ENV_READY 0x00080 /* Env. imported into hash table */ #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_SKIP_RELOC 0x00400 /* Don't relocate */
#endif /* __ASM_GENERIC_GBL_DATA_H */
What about reloc_fdt() and do_elf_reloc_fixups()?
I'll add the first one. The second one is not called and I have a patch to remove it.
Regards, Bin