lmb: do away with arch_lmb_reserve()

All of the current definitions of arch_lmb_reserve() are doing the
same thing -- reserve the region of memory occupied by U-Boot,
starting from the current stack address to the ram_top. Introduce a
function lmb_reserve_uboot_region() which does this, and do away with
the arch_lmb_reserve() function.

Instead of using the current value of stack pointer for starting the
reserved region, have a fixed value, considering the stack size config
value.

Signed-off-by: Sughosh Ganu <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Acked-by: Ilias Apalodimas <[email protected]>

1 files changed, 0 insertions, 13 deletions

diff --git a/arch/xtensa/lib/bootm.c b/arch/xtensa/lib/bootm.c
index bdbd6d4692c..2958f207397 100644
--- a/arch/xtensa/lib/bootm.c
+++ b/arch/xtensa/lib/bootm.c
@@ -197,16 +197,3 @@ int do_bootm_linux(int flag, struct bootm_info *bmi)
 
 	return 1;
 }
-
-static ulong get_sp(void)
-{
-	ulong ret;
-
-	asm("mov %0, a1" : "=r"(ret) : );
-	return ret;
-}
-
-void arch_lmb_reserve(void)
-{
-	arch_lmb_reserve_generic(get_sp(), gd->ram_top, 4096);
-}