[coreboot-gerrit] Change in coreboot[master]: mrc_cache: Update mrc_cache data in romstage

[Furquan Shaikh (Code Review)]

Furquan Shaikh has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/44196 )

Change subject: mrc_cache: Update mrc_cache data in romstage
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Patch Set 24:

(2 comments)

https://review.coreboot.org/c/coreboot/+/44196/24/src/drivers/mrc_cache/Kcon... 
File src/drivers/mrc_cache/Kconfig:

https://review.coreboot.org/c/coreboot/+/44196/24/src/drivers/mrc_cache/Kcon... 
PS24, Line 45: 	  later to MRC_CACHE.
Probably we should add:
This is selected for platforms which either do not support writes to SPI flash in early stages()BOOT_DEVICE_SPI_FLASH_NO_EARLY_WRITES) or the platforms that need to write back the MRC data in late ramstage boot states(MRC_WRITE_NV_LATE).

https://review.coreboot.org/c/coreboot/+/44196/24/src/drivers/spi/Kconfig 
File src/drivers/spi/Kconfig:

https://review.coreboot.org/c/coreboot/+/44196/24/src/drivers/spi/Kconfig@45 
PS24, Line 45: BOOT_DEVICE_SPI_FLASH_NO_EARLY_WRITES
Addition of this Kconfig should be its own separate CL along with selecting it for platforms that need it.