[XL] Change in coreboot[main]: soc/intel/xeon_sp: Add Xeon ICX-SP support

[Patrick Rudolph (Code Review)]

Attention is currently required from: Christian Walter, Johnny Lin, Jonathan Zhang, Shuo Liu, Tim Chu.

Hello Christian Walter, Johnny Lin, Jonathan Zhang, Shuo Liu, Tim Chu, build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/85845?usp=email

to look at the new patch set (#2).

The following approvals got outdated and were removed:
Verified+1 by build bot (Jenkins)

Change subject: soc/intel/xeon_sp: Add Xeon ICX-SP support
......................................................................

soc/intel/xeon_sp: Add Xeon ICX-SP support

Add support for the 1st Gen 10nm Xeon-SP CPUs. Supported and tested
are dual socket systems with a LBG PCH.

The WhitleyFSP, that is being used here, never has been validated in API mode
and has several flaws:
- CPU PCIe ports MUST be disabled
- QPI links MUST run at degraded speeds

Currently uses the SPR ACPI code.

TEST: Boots to Linux userspace. No errors in coreboot or dmesg visible.
TODO: Merge with SPR code base.

Change-Id: I7bb74c0db2c91c87bf623c079f89fd139780160b
Signed-off-by: Patrick Rudolph 
---
M src/include/cpu/intel/cpu_ids.h
M src/soc/intel/xeon_sp/Makefile.mk
A src/soc/intel/xeon_sp/icx/Kconfig
A src/soc/intel/xeon_sp/icx/Makefile.mk
A src/soc/intel/xeon_sp/icx/chip.c
A src/soc/intel/xeon_sp/icx/chip.h
A src/soc/intel/xeon_sp/icx/chipset.cb
A src/soc/intel/xeon_sp/icx/cpu.c
A src/soc/intel/xeon_sp/icx/hob_display.c
A src/soc/intel/xeon_sp/icx/include/soc/pci_devs.h
A src/soc/intel/xeon_sp/icx/include/soc/soc_msr.h
A src/soc/intel/xeon_sp/icx/include/soc/soc_util.h
A src/soc/intel/xeon_sp/icx/ramstage.c
A src/soc/intel/xeon_sp/icx/reset.c
A src/soc/intel/xeon_sp/icx/romstage.c
A src/soc/intel/xeon_sp/icx/soc_acpi.c
A src/soc/intel/xeon_sp/icx/soc_util.c
A src/soc/intel/xeon_sp/icx/upd_display.c
18 files changed, 1,457 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/45/85845/2