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