[PATCH 01/13] ARM: add ENTRY_FUNCTION_HEAD macro

[Sascha Hauer]

Some architectures set CONFIG_HAVE_MACH_ARM_HEAD to customize the
barebox image header. Add a ENTRY_FUNCTION_HEAD macro which allows
a board to customize the barebox image header without having to
hook into a generic include file.

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 arch/arm/include/asm/barebox-arm.h | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/arm/include/asm/barebox-arm.h b/arch/arm/include/asm/barebox-arm.h
index d4be719bc4..0cf4549cd7 100644
--- a/arch/arm/include/asm/barebox-arm.h
+++ b/arch/arm/include/asm/barebox-arm.h
@@ -183,7 +183,7 @@ void __barebox_arm64_head(ulong x0, ulong x1, ulong x2);
 	static void noinline ____##name					\
 		(ulong arg0, ulong arg1, ulong arg2)
 
-#define ENTRY_FUNCTION(name, arg0, arg1, arg2)				\
+#define ENTRY_FUNCTION_HEAD(name, head, arg0, arg1, arg2)		\
 	void name(ulong r0, ulong r1, ulong r2);			\
 									\
 	static void __##name(ulong, ulong, ulong);			\
@@ -191,11 +191,14 @@ void __barebox_arm64_head(ulong x0, ulong x1, ulong x2);
 	void __naked __section(.text_head_entry_##name)	name		\
 				(ulong r0, ulong r1, ulong r2)		\
 		{							\
-			__barebox_arm_head();				\
+			head();				\
 			__##name(r0, r1, r2);				\
 		}							\
 	static void __naked noinline __##name				\
 		(ulong arg0, ulong arg1, ulong arg2)
+
+#define ENTRY_FUNCTION(name, arg0, arg1, arg2)		\
+		ENTRY_FUNCTION_HEAD(name, __barebox_arm_head, arg0, arg1, arg2)
 #endif
 
 /*
-- 
2.30.2