From mboxrd@z Thu Jan  1 00:00:00 1970
From: Scott Wood <scottwood@freescale.com>
Date: Fri, 20 Jul 2012 16:12:49 -0500
Subject: [U-Boot] [PATCH 1/2] powerpc: Stack Pointer must be 16 aligned
In-Reply-To: <1342776046-25513-1-git-send-email-Joakim.Tjernlund@transmode.se>
References: <1342776046-25513-1-git-send-email-Joakim.Tjernlund@transmode.se>
Message-ID: <5009C9D1.70601@freescale.com>
List-Id: <u-boot.lists.denx.de>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
To: u-boot@lists.denx.de

On 07/20/2012 04:20 AM, Joakim Tjernlund wrote:
> The PowerPC ABI mandates the SP to be 16 bytes aligned, make is so.
> 
> Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
> ---
>  arch/powerpc/lib/board.c |    5 ++---
>  1 files changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git arch/powerpc/lib/board.c arch/powerpc/lib/board.c
> index d5b75e5..dc7cc40 100644
> --- arch/powerpc/lib/board.c
> +++ arch/powerpc/lib/board.c
> @@ -521,9 +521,8 @@ void board_init_f(ulong bootflag)
>  	addr_sp -= 16;
>  	addr_sp &= ~0xF;
>  	s = (ulong *) addr_sp;
> -	*s-- = 0;
> -	*s-- = 0;
> -	addr_sp = (ulong) s;
> +	*s = 0;   /* NULL Back Chain */
> +	*--s = 0; /* NULL LR */

Same problems as in patch 2/2.

-Scott