[U-Boot] [PATCH 23/48] x86: Support skipping relocation for EFI

Simon Glass sjg at chromium.org
Wed Jul 22 17:49:15 CEST 2015


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>
---

 arch/x86/lib/relocate.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/x86/lib/relocate.c b/arch/x86/lib/relocate.c
index 1a62142..0839f59 100644
--- a/arch/x86/lib/relocate.c
+++ b/arch/x86/lib/relocate.c
@@ -28,7 +28,8 @@ int copy_uboot_to_ram(void)
 {
 	size_t len = (size_t)&__data_end - (size_t)&__text_start;
 
-	memcpy((void *)gd->relocaddr, (void *)&__text_start, len);
+	if (!(gd->flags & GD_FLG_SKIP_RELOC))
+		memcpy((void *)gd->relocaddr, (void *)&__text_start, len);
 
 	return 0;
 }
@@ -38,7 +39,8 @@ int clear_bss(void)
 	ulong dst_addr = (ulong)&__bss_start + gd->reloc_off;
 	size_t len = (size_t)&__bss_end - (size_t)&__bss_start;
 
-	memset((void *)dst_addr, 0x00, len);
+	if (!(gd->flags & GD_FLG_SKIP_RELOC))
+		memset((void *)dst_addr, 0x00, len);
 
 	return 0;
 }
@@ -58,6 +60,8 @@ 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");
 
-- 
2.4.3.573.g4eafbef



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