[U-Boot] [PATCH] arm: Tegra: fix undefined instruction hang immediately after reset

[Aneesh V <aneesh@ti.com>]

Hi Tom,

On Wednesday 07 December 2011 04:30 AM, Tom Warren wrote:
> commit 0d479b53 (Aneesh V) added code for OMAP4 that doesn't
> execute on Tegra, due to the AVP (ARM7TDI) not having a CP15.
> Result was an undefined instruction hang just after reset.
>
> Signed-off-by: Tom Warren<twarren@nvidia.com>
> Cc: Albert Aribaud<albert.u.boot@aribaud.net>
> Cc: Tom Rini<trini@ti.com>
> ---
>   arch/arm/cpu/armv7/start.S |    2 ++
>   1 files changed, 2 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/cpu/armv7/start.S b/arch/arm/cpu/armv7/start.S
> index d23dc9d..ceed11e 100644
> --- a/arch/arm/cpu/armv7/start.S
> +++ b/arch/arm/cpu/armv7/start.S
> @@ -144,6 +144,7 @@ reset:
>   	orr	r0, r0, #0xd3
>   	msr	cpsr,r0
>
> +#if !defined(CONFIG_TEGRA2)
>   /*
>    * Setup vector:
>    * (OMAP4 spl TEXT_BASE is not 32 byte aligned.
> @@ -159,6 +160,7 @@ reset:
>   	ldr	r0, =_start
>   	mcr	p15, 0, r0, c12, c0, 0	@Set VBAR
>   #endif
> +#endif	/* !Tegra2 */
>
>   	/* the mask ROM code should have PLL and others stable */
>   #ifndef CONFIG_SKIP_LOWLEVEL_INIT

FWIW,

Acked-by: Aneesh V <aneesh@ti.com>