Change in coreboot[master]: mb/google/fizz: Override IccMax settings

[Gaggery Tsai (Code Review)]

Hello Kane Chen, build bot (Jenkins), Furquan Shaikh,

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

https://review.coreboot.org/23020

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

Change subject: mb/google/fizz: Override IccMax settings
......................................................................

mb/google/fizz: Override IccMax settings

According to Intel document #559100 KBL EDS v2.8, section 7.2
DC specifications, the IccMax setting for KBL-U, KBL-U42 and
Celeron are different. This patch sets Celeron as default SKU
in device tree and overrides the IccMax settings for KBL-U and
KBL-U42 at pre-FSPS.

+----------------+-------------+---------------+-------+-------+
| Domain/Setting |  SA         |  IA           | GTUS  |  GTS  |
+----------------+-------------+---------------+-------+-------+
| IccMax         | 6A(U42)     | 64A(U42)      | 31A   | 31A   |
|                | 4.5A(Others)| 29A(Celeron)  | 31A   | 31A   |(Default)
|                |             | 32A(i3/i5)    | 31A   | 31A   |
+----------------+-------------+-------+-------+-------+-------+

BUG=b:71369428
BRANCH=None
TEST=emerge-fizz coreboot chromeos-bootimage & Ensure the KBL-U42,
     KBL-U and Celeron SKUs are identified correctly and IccMax settings
     are passed to FSPS correctly.

Change-Id: I32ffe0cb73981850005b20fefb6664cfab74fbca
Signed-off-by: Gaggery Tsai 
---
A src/mainboard/google/fizz/common.h
M src/mainboard/google/fizz/devicetree.cb
M src/mainboard/google/fizz/mainboard.c
M src/mainboard/google/fizz/ramstage.c
4 files changed, 82 insertions(+), 23 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/20/23020/2