Change in coreboot[master]: soc/intel/xeon_sp: Add PCH lockdown

[Marc Jones (Code Review)]

Attention is currently required from: Marc Jones, Furquan Shaikh, Martin Roth, Jonathan Zhang, Johnny Lin, Rocky Phagura, Stefan Reinauer, Patrick Rudolph.
Hello build bot (Jenkins), Furquan Shaikh, Patrick Georgi, Martin Roth, Jonathan Zhang, Jay Talbott, Johnny Lin, Rocky Phagura, Stefan Reinauer, Rocky Phagura, Arthur Heymans, Patrick Rudolph,

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

https://review.coreboot.org/c/coreboot/+/49849

to look at the new patch set (#4).

Change subject: soc/intel/xeon_sp: Add PCH lockdown
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soc/intel/xeon_sp: Add PCH lockdown

Add SOC_INTEL_COMMON_PCH_LOCKDOWN to meet security requirement.
LOCKDOWN has dependencies on SOC_INTEL_COMMON_PCH_BASE and
several other common block devices, so we also add those,
while skipping devices and features that are not supported by
the xeon_sp (LWB) PCH.

Adds the following common devices:
SOC_INTEL_COMMON_BLOCK_CHIP_CONFIG
SOC_INTEL_COMMON_BLOCK_CSE
SOC_INTEL_COMMON_BLOCK_GPIO_ITSS_POL_CFG
SOC_INTEL_COMMON_BLOCK_ITSS
PMC_GLOBAL_RESET_ENABLE_LOCK
SOC_INTEL_COMMON_BLOCK_SATA
SOC_INTEL_COMMON_BLOCK_SMBUS
SOC_INTEL_COMMON_BLOCK_XHCI

Change-Id: Iab97123e487f4f13f874f364a9c51723d234d4f0
Signed-off-by: Marc Jones 
---
M src/soc/intel/common/pch/Kconfig
M src/soc/intel/xeon_sp/Kconfig
M src/soc/intel/xeon_sp/Makefile.inc
M src/soc/intel/xeon_sp/cpx/chip.c
M src/soc/intel/xeon_sp/include/soc/iomap.h
A src/soc/intel/xeon_sp/include/soc/itss.h
A src/soc/intel/xeon_sp/include/soc/me.h
M src/soc/intel/xeon_sp/include/soc/pmc.h
A src/soc/intel/xeon_sp/lockdown.c
M src/soc/intel/xeon_sp/skx/include/soc/pci_devs.h
10 files changed, 142 insertions(+), 21 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/49/49849/4