In case of little-endian ARC700 instructions (which may include target
address) are encoded as middle-endian. That's why it's required to swap
bytes after read and ten right before write back.
But in case of big-endian ARC700 instructions are encoded as a plain
big-endian. Thus no need for byte swapping.
Signed-off-by: Alexey Brodkin <abrod...@synopsys.com>
Cc: Francois Bedard <fbed...@synopsys.com>
Cc: Tom Rini <tr...@ti.com>
cc: Noam Camus <no...@ezchip.com>
---
arch/arc/lib/relocate.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arc/lib/relocate.c b/arch/arc/lib/relocate.c
index 956aa14..2482bcd 100644
--- a/arch/arc/lib/relocate.c
+++ b/arch/arc/lib/relocate.c
@@ -41,19 +41,23 @@ int do_elf_reloc_fixups(void)
*/
memcpy(&val, offset_ptr_ram, sizeof(int));
+#ifdef __LITTLE_ENDIAN__
/* If location in ".text" section swap value */
if ((unsigned int)offset_ptr_rom <
(unsigned int)&__text_end)
val = (val << 16) | (val >> 16);
+#endif
/* Check that the target points into .text */
if (val >= CONFIG_SYS_TEXT_BASE && val <=
(unsigned int)&__bss_end) {
val += gd->reloc_off;
+#ifdef __LITTLE_ENDIAN__
/* If location in ".text" section swap value */
if ((unsigned int)offset_ptr_rom <
(unsigned int)&__text_end)
val = (val << 16) | (val >> 16);
+#endif
memcpy(offset_ptr_ram, &val, sizeof(int));
} else {
debug(" %p: rom reloc %x, ram %p, value %x,
limit %x\n",
--
1.8.5.3
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
