powerpc:Add support of SPL non-relocation
Current SPL code base has BSS section placed after reset_vector. This means
they have to relocate to use the global variables. This put an implicit
requirement of having SPL size = Memory/2.
To avoid relocation:
- Move bss_section within SPL range
- Modify relocate_code()
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
diff --git a/arch/powerpc/cpu/mpc85xx/start.S b/arch/powerpc/cpu/mpc85xx/start.S
index 02f5076..0e3c86a 100644
--- a/arch/powerpc/cpu/mpc85xx/start.S
+++ b/arch/powerpc/cpu/mpc85xx/start.S
@@ -1652,6 +1652,7 @@
mr r10,r5 /* Save copy of Destination Address */
GET_GOT
+#ifndef CONFIG_SPL_SKIP_RELOCATE
mr r3,r5 /* Destination Address */
lis r4,CONFIG_SYS_MONITOR_BASE@h /* Source Address */
ori r4,r4,CONFIG_SYS_MONITOR_BASE@l
@@ -1742,6 +1743,7 @@
mtlr r0
blr /* NEVER RETURNS! */
+#endif
.globl in_ram
in_ram: