Re: [U-Boot] [PATCH v2] mx6: add support of multi-processor command

On Sun 2014-06-22 17:09:28, Nikolay Dimitrov wrote:

Hi Gabriel,

...

This allows u-boot to load different OS or Bare Metal application on the different cores of the i.MX6DQ. For example: we can run Android on cpu0 and a RT OS like QNX/FreeRTOS on cpu1.

I think this explanation is a little misleading - if you run unmodified versions of Android & some RTOS, they will fight for the imx6 interrupt controller, power management and clocks. As far as I know, imx6 is not appropriate for AMP (asymmetric multi-processing) because it doesn't support virtualization extensions.

I did AMP configuration on socfpga (similar to i.mx6 in this regard). Yes, Linux needs to be modified for this to work... but it seems mostly unmodified u-boot can be used.

Pavel