Add configuration for AMD's IMC ROM and fan registers for cimx/sb800
platforms.
- Allows user to add the IMC rom to the build and to configure the
location of the "signature" between the allowed positions.
- Allows for no fan control, manual setup of SB800 Fan registers, or
setup of the IMC fan configuration registers.
- Register configuration is done through devicetree.cb. No files need
to be added for new platform configuration.
- Initial setup is for Persimmon, but may be extended to any cimx/sb800
platform.
Change-Id: Ib06408d794988cbb29eed6adbeeadea8b2629bae
Signed-off-by: Martin Roth <martin@se-eng.com>
Reviewed-on: http://review.coreboot.org/1977
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-by: Marc Jones <marcj303@gmail.com>
e899e518d8