[U-Boot] [PATCH 11/16] spl: build: ti: add support for secure boot images

[Andreas Dannenberg <dannenberg@ti.com>]

On Mon, Apr 11, 2016 at 06:37:13PM -0500, Daniel Allred wrote:
> Updates the SPL build so that when CONFIG_TI_SECURE_DEVICE
> is in use (which it should be when building for secure parts),
> the TI secure development package is used to create a valid
> secure boot image. The u-boot SPL build processes is NOT aware
> of the details of creating the boot image - all of that information
> is encapsulated in the TI secure development package, which is
> available from TI. More info can be found in README.ti-secure
> 
> Right now, two image types are generated, MLO and X-LOADER. The types
> are important, as certain boot modes implemented by the device's ROM
> boot loader require one or the other (they are not equivalent). The
> output filenames are u-boot-spl_HS_MLO and u-boot-spl_HS_X-LOADER. The
> u-boot-spl_HS_MLO image is also copied to a file named MLO, which is
> the name that the device ROM bootloader requires for loading from the
> FAT partition of an SD card (same as on non-secure devices).
> 
> Signed-off-by: Daniel Allred <d-allred@ti.com>
> Signed-off-by: Madan Srinivas <madans@ti.com>

Successfully boot-tested the patch on actual DRA72x HS and DRA74x HS
hardware.

Tested-by: Andreas Dannenberg <dannenberg@ti.com>

--
Andreas Dannenberg
Texas Instruments Inc