[U-Boot] [PATCH v3 01/28] Add a way to skip relocation

[Simon Glass]

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 at chromium.org>
---

Changes in v3: None
Changes in v2: None

 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 6d922b8..c596083 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 9f5db0f..2155265 100644
--- a/include/asm-generic/global_data.h
+++ b/include/asm-generic/global_data.h
@@ -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 */
-- 
2.5.0.rc2.392.g76e840b