[L] Change in coreboot[main]: mainboard/emulation/qemu-sbsa: Add qemu-sbsa board

[David Milosevic (Code Review)]

Attention is currently required from: Angel Pons, Arthur Heymans, Benjamin Doron, Christian Walter, David Milosevic, Lean Sheng Tan, Maximilian Brune, Naresh Solanki, Patrick Rudolph.

Hello Arthur Heymans, Benjamin Doron, Christian Walter, Lean Sheng Tan, Maximilian Brune, Naresh Solanki, build bot (Jenkins),

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/79086?usp=email

to look at the new patch set (#15).

Change subject: mainboard/emulation/qemu-sbsa: Add qemu-sbsa board
......................................................................

mainboard/emulation/qemu-sbsa: Add qemu-sbsa board

Add coreboot support for qemu's sbsa-ref (Server Base System
Architecture) machine (-m sbsa-ref).

The qemu-sbsa coreboot port runs on EL2 and is the payload of the
EL3 firmware (Arm Trusted Firmware).

Note that, coreboot expects a pointer to the FDT in x0. Make sure
to configure TF-A to handoff the FDT pointer.

Example qemu commandline:

qemu-system-aarch64 -nographic -m 2048 -M sbsa-ref \
                      -pflash <path/to/TFA.fd> \
                      -pflash <path/to/coreboot.rom>

The Documentation is still a work-in-progress.

Change-Id: Iacc9aaf065e0d153336cbef9a9b5b46a9eb24a53
Signed-off-by: David Milosevic 
---
A Documentation/mainboard/emulation/qemu-sbsa.md
A src/mainboard/emulation/qemu-sbsa/Kconfig
A src/mainboard/emulation/qemu-sbsa/Kconfig.name
A src/mainboard/emulation/qemu-sbsa/Makefile.mk
A src/mainboard/emulation/qemu-sbsa/acpi.c
A src/mainboard/emulation/qemu-sbsa/board_info.txt
A src/mainboard/emulation/qemu-sbsa/bootblock.c
A src/mainboard/emulation/qemu-sbsa/bootblock_custom.S
A src/mainboard/emulation/qemu-sbsa/cbmem.c
A src/mainboard/emulation/qemu-sbsa/chip.h
A src/mainboard/emulation/qemu-sbsa/devicetree.cb
A src/mainboard/emulation/qemu-sbsa/dsdt.asl
A src/mainboard/emulation/qemu-sbsa/flash.fmd
A src/mainboard/emulation/qemu-sbsa/include/mainboard/addressmap.h
A src/mainboard/emulation/qemu-sbsa/mainboard.c
A src/mainboard/emulation/qemu-sbsa/media.c
A src/mainboard/emulation/qemu-sbsa/memlayout.ld
A src/mainboard/emulation/qemu-sbsa/mmio.c
18 files changed, 816 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/86/79086/15