[U-Boot] [PATCH v2 26/47] x86: Support skipping relocation for EFI

[Simon Glass]

When running as an EFI application we must skip relocation. Add support for
this in the x86 relocation code.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

Changes in v2:
- Return early in copy_uboot_to_ram() and clear_bbs() when relocation disabled

 arch/x86/lib/relocate.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/x86/lib/relocate.c b/arch/x86/lib/relocate.c
index 1a62142..9e748d2 100644
--- a/arch/x86/lib/relocate.c
+++ b/arch/x86/lib/relocate.c
@@ -28,6 +28,8 @@ int copy_uboot_to_ram(void)
 {
 	size_t len = (size_t)&__data_end - (size_t)&__text_start;
 
+	if (gd->flags & GD_FLG_SKIP_RELOC)
+		return 0;
 	memcpy((void *)gd->relocaddr, (void *)&__text_start, len);
 
 	return 0;
@@ -38,6 +40,8 @@ int clear_bss(void)
 	ulong dst_addr = (ulong)&__bss_start + gd->reloc_off;
 	size_t len = (size_t)&__bss_end - (size_t)&__bss_start;
 
+	if (gd->flags & GD_FLG_SKIP_RELOC)
+		return 0;
 	memset((void *)dst_addr, 0x00, len);
 
 	return 0;
@@ -58,6 +62,8 @@ int do_elf_reloc_fixups(void)
 	/* The size of the region of u-boot that runs out of RAM. */
 	uintptr_t size = (uintptr_t)&__bss_end - (uintptr_t)&__text_start;
 
+	if (gd->flags & GD_FLG_SKIP_RELOC)
+		return 0;
 	if (re_src == re_end)
 		panic("No relocation data");
 
-- 
2.5.0.rc2.392.g76e840b