[U-Boot] [PATCH v7 1/2] Reserve secure memory

[York Sun <yorksun@freescale.com>]

On 12/05/2015 03:57 AM, York Sun wrote:
> Secure memory is at the end of memory, separated and reserved
> from OS, tracked by gd->secure_ram. Secure memory can host
> MMU tables, security monitor, etc. This is different from PRAM
> used to reserve private memory. PRAM offers memory at the top
> of u-boot memory, not necessarily the real end of memory for
> systems with very large DDR. Using the end of memory simplifies
> MMU setup and avoid memory fragmentation.
> 
> "bdinfo" command shows gd->secure_ram value if this memory is
> marked as secured.
> 
> Signed-off-by: York Sun <yorksun@freescale.com>
> 
> ---
> 
> Changes in v7: None
> Changes in v6:
>   Move cmd_bdinfo change into this patch
>   Move flag macros and comments of secure_ram into this patch
> 
> Changes in v5: None
> Changes in v4: None
> Changes in v3:
>   Put ifdef around secure_ram
>   Move defining CONFIG_SYS_MEM_RESERVE_SECURE to patch 2/2
> 
> Changes in v2:
>   Do not use CONFIG_SYS_MEM_TOP_HIDE mechanism
> 
> Changes in v1:
>   Initial patch.
>   Depends on http://patchwork.ozlabs.org/patch/540248/
> 

Applied to fsl-qoriq master. Awaiting upstream.

York