[XS] Change in coreboot[main]: soc/mediatek/mt8189: Reserve DRAM buffers for HW TX TRACKING

[Vince Liu (Code Review)]

Attention is currently required from: Hung-Te Lin, Vince Liu, Yu-Ping Wu.

Hello Hung-Te Lin, Yidi Lin, Yu-Ping Wu, build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/87039?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The following approvals got outdated and were removed: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/mediatek/mt8189: Reserve DRAM buffers for HW TX TRACKING
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soc/mediatek/mt8189: Reserve DRAM buffers for HW TX TRACKING

HW TX tracking works by writing a pattern to the designated DRAM buffer
and then reading it back automatically to calculate the appropriate TX
time delay. To avoid writing the pattern to system-used memory, we need
to permanently reserve last 64KB memory on each rank for the HW TX
tracking feature.

BUG=b:379008996
BRANCH=none
TEST=Reserve memory ok
Firmware shows the following log :
000000013fff0000-000000013fffffff: RESERVED
000000023fff0000-000000023fffffff: RESERVED

Signed-off-by: Mike Lin 
Change-Id: I2ecfe42dc9f1882163d03f50cf9b5ff8e98c2972
---
M src/soc/mediatek/mt8189/Makefile.mk
M src/soc/mediatek/mt8189/soc.c
2 files changed, 8 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/39/87039/2