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

Valentin Longchamp valentin.longchamp at keymile.com
Fri Oct 3 11:45:23 CEST 2014


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 at 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



More information about the U-Boot mailing list