[coreboot-gerrit] Change in coreboot[master]: device/mmio.h: Add bit field helpers

[Hung-Te Lin (Code Review)]

Hung-Te Lin has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/35463 )

Change subject: device/mmio.h: Add bit field helpers
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Patch Set 10:

BTW, I just found that 3rdparty/chromeec/include/sfdp.h has similar definition:

SFDP_DEFINE_BITFIELD(SFDP_HEADER_DW1_P, 31, 24);

They also don't put semicolon.

So will it be more clear if we go back to always say BITFIELD?

DEFINE_BITFIELD
EXTRACT_BITFIELD

SET32_BITFIELDS
WRITE32_BITFIELDS
READ32_BITFIELDS