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

[Tom Warren]

Thanks, Aneesh.

On Wed, Dec 21, 2011 at 1:02 AM, Aneesh V <aneesh at ti.com> wrote:
> 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 at nvidia.com>
>> Cc: Albert Aribaud<albert.u.boot at aribaud.net>
>> Cc: Tom Rini<trini at 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 at ti.com>