[U-Boot] [PATCH 3/3] ARM: tegra: Disable SPL and non-cached memory on 64-bit

[Simon Glass]

Hi Stephen,

On 28 July 2015 at 09:44, Stephen Warren <swarren at wwwdotorg.org> wrote:
> On 07/28/2015 09:33 AM, Simon Glass wrote:
>>
>> Hi,
>>
>> On 27 July 2015 at 11:45, Stephen Warren <swarren at wwwdotorg.org> wrote:
>>>
>>> From: Thierry Reding <treding at nvidia.com>
>>>
>>> For 64-bit ARM SoCs we rely on non-U-Boot code to bring up the CPU in
>>> AArch64 mode so that we don't need the SPL. Non-cached memory is not
>>> implemented (yet) for 64-bit ARM.
>>>
>>> Signed-off-by: Thierry Reding <treding at nvidia.com>
>>> Signed-off-by: Tom Warren <twarren at nvidia.com>
>>> Signed-off-by: Stephen Warren <swarren at nvidia.com>
>>> ---
>>>   include/configs/tegra-common.h | 4 ++++
>>>   1 file changed, 4 insertions(+)
>>
>>
>> What does start up the CPU? Is this something that will be implemented
>> in SPL later?
>
>
> At least initially, the plan is to use a separate bootloader on the boot CPU
> (was named AVP, but got renamed to BPMP lite in Tegra210). It's vaguely
> possible that U-Boot SPL support will exist in the future, but I'm not sure.

Ah OK. Where does that live? I think SPL would be better.

Regards,
Simon