[U-Boot] [PATCH 1/2] powerpc/mpc83xx: Zero boot_flags arg for calling board_init_f()

Valentin Longchamp
2014-10-03T09:45:23Z

The argument boot_flags of board_init_f() is not used at all in the
powerpc specific board.c init sequence. Now with the generic init
sequence, this boot_flags arg is used by board_init_f().

This patch sets the r3 register that is used to pass the boot_flags
argument from the start.S board_init_f() call to 0 prior to the function
call to avoid unknown content to end up in gd->flags.

Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
---

arch/powerpc/cpu/mpc83xx/start.S | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/cpu/mpc83xx/start.S b/arch/powerpc/cpu/mpc83xx/start.S
index 36724e5..8abb3f1 100644
--- a/arch/powerpc/cpu/mpc83xx/start.S
+++ b/arch/powerpc/cpu/mpc83xx/start.S
@@ -283,6 +283,7 @@ in_flash:
bl cpu_init_f

/* run 1st part of board init code (in Flash)*/
+ li r3, 0 /* clear boot_flag for calling board_init_f */
bl board_init_f

/* NOTREACHED - board_init_f() does not return */
--
1.8.0.1