[coreboot-gerrit] [M] Change in coreboot[main]: soc/mediatek/mt8196: Add booker driver

[Dehui Sun (Code Review)]

Attention is currently required from: Hung-Te Lin, Jarried Lin.

Dehui Sun has posted comments on this change by Jarried Lin. ( https://review.coreboot.org/c/coreboot/+/85362?usp=email )

Change subject: soc/mediatek/mt8196: Add booker driver
......................................................................

Patch Set 12:

(2 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/85362/comment/d4d42f35_0e94c915?usp... :
PS12, Line 8:
> Can you please start by describing MediaTek Booker device? Is it newly introduced with MT8196? What  […]

The Booker's protocol is generally similar to CI-700, with some MTK modifications. It does not require a blob and is mainly used by MTE (Memory Tagging Extension) and SLC (System Level Cache).

https://review.coreboot.org/c/coreboot/+/85362/comment/ea3db652_fcd3e09b?usp... :
PS12, Line 20: [booker_init] AP hash rule: 0xbe00.
> What is this hash rule?

Hash rule is an algorithm that implements different hash functions for a device in MTK.