[U-Boot] [PATCH v1] armv8: fsl-layerscale: Rewrite reserving memory for MC and debug server

[York Sun <yorksun@freescale.com>]

On 11/12/2015 02:54 PM, Joakim Tjernlund wrote:
> On Thu, 2015-11-12 at 14:20 -0800, York Sun wrote:
>> Introduce a new function to calculate reserved memory to replace macro
>> CONFIG_SYS_MEM_TOP_HIDE for more flexibility. Legacy use of this macro is
>> still supported. MC and debug server are not board-specific. Move the
>> reservation function to SoC file. Reduce debug server memory by 2MB to
>> make room for secure memory.
> 
> I would make sure "pram" is first to reserve memory, is it?
> 

(previous reply wasn't caught by patchwork, adding more info)

Yes, pram is used to reserve small memory from the top of u-boot memory, not
necessarily the top of total memory. For example, a 32-bit u-boot with large
memory. This patch deals with carving memory from the end of memory, which could
be far away from u-boot top. Even in system with small memory, it is still
correct, because pram reserves memory from the _top_ of u-boot and this
mechanism reserved memory is hidden from u-boot.

York