[U-Boot] [PATCH 03/10] arm: add a separate stack for TPL

[Kever Yang]

TPL stack may different from SPL and sys stack, add support for
separate one when the board defines it.

Signed-off-by: Kever Yang <kever.yang at rock-chips.com>
---

 arch/arm/lib/crt0.S | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm/lib/crt0.S b/arch/arm/lib/crt0.S
index fa81317..3c1c603 100644
--- a/arch/arm/lib/crt0.S
+++ b/arch/arm/lib/crt0.S
@@ -70,7 +70,9 @@ ENTRY(_main)
  * Set up initial C runtime environment and call board_init_f(0).
  */
 
-#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_STACK)
+#if defined(CONFIG_TPL_BUILD) && defined(CONFIG_TPL_NEEDS_SEPARATE_STACK)
+	ldr	r0, =(CONFIG_TPL_STACK)
+#elif defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_STACK)
 	ldr	r0, =(CONFIG_SPL_STACK)
 #else
 	ldr	r0, =(CONFIG_SYS_INIT_SP_ADDR)
-- 
1.9.1