[coreboot-gerrit] [XS] Change in coreboot[main]: soc/mediatek/common: Reduce eMMC clock frequency to 400 kHz

[Hung-Te Lin (Code Review)]

Attention is currently required from: Kiwi Liu, Mengqi Zhang, Paul Menzel, Yidi Lin, Yu-Ping Wu.

Hung-Te Lin has posted comments on this change by Kiwi Liu. ( https://review.coreboot.org/c/coreboot/+/84298?usp=email )

Change subject: soc/mediatek/common: Reduce eMMC clock frequency to 400 kHz
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Patch Set 12:

(1 comment)

File src/soc/mediatek/common/msdc.c:

https://review.coreboot.org/c/coreboot/+/84298/comment/32e2c289_418b107f?usp... :
PS9, Line 432: 	host->src_hz = 400 * 1000 * 1000;
> Do you mean `50 * 1000 * 1000` is a wrong reference value because the actual source clock is running […]

Is the source clock always 400MHz on all platforms? Or is it a platform-specific value that we should probably set a config, and use the config here?