tree a027b9b20abf5d1a8492c5573a4635dacb019d03
parent 24da55eef7f032a8b4957fd9eb53dc3b87d01997
author Harrison Mutai <harrison.mutai@arm.com> 1716906941 +0000
committer Harrison Mutai <harrison.mutai@arm.com> 1734533304 +0000

feat(arm): migrate heap info to fw handoff

Mbed-TLS requires platforms to allocate it a heap for it's own internal
usage. This heap is typically between shared by BL1 and BL2 to conserve
memory.The base address and size of the heap are conveyed from BL1 to
BL2 through the config TB_FW_CONFIG.

This slightly awkward approach necessitates declaring a placeholder node
in the DTS. At runtime, this node is populated with the actual values of
the heap information. Instead, since this is dynamic information, and
simple to represent through C structures, transmit it to later stages
using the firmware handoff framework.

With this migration, remove references to TB_FW_CONFIG when firmware
handoff is enabled, as it is no longer needed. The setup code now relies
solely on TL structures to configure the TB firmware

Change-Id: Iff00dc742924a055b8bd304f15eec03ce3c6d1ef
Signed-off-by: Harrison Mutai <harrison.mutai@arm.com>