Hello
I am trying to enable NVRAM for MainnoMax for the 4.11 branch. I am trying to save persistence config in SOC E3825. (It has a MC146818B-compatible 242 bytes of battery-backed RAM).
I enabled the following options in coreboot 4.11 branch:
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Use CMOS for configuration values -
Load default config values on each boot
And tested whether the configuration made by nvramcui (as my second mayload) is persistent across power-offs with no luck.
I have the following questions and I would appreciate it if anyone can answer any of these questions: 1.How to enable coreboot to save configuration on MinnowMAX? 2.With the battery connected to the board, is it correct to use nvramcui to check persistent configuration? 3. I read about SMMSTORE as a way to store configuration changes in BIOS without having an actual EEPROM storage but I don't know if I have to enable it explicitly if my board doesn't support it. 4. How one can add SMMSTORE support for SoCs like Intel E3800 families.
Also I would be grateful if anyone can send me links to investigate any further.
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zahra rahimkhani