To answer the original question, I think not. Not on its own. macOS needs Clover. Clover needs UEFI. UEFI means Tianocore for payload. So coreboot+Tianocore+Clover, where Clover would be handled like any other bootloader eg. grub. I'm not sure if there porting Clover as a coreboot payload is necessary, practical, or even possible. At the very least it is a lot of work.
Regards Keith
coreboot doesn't boot the OS, it performs hardware initialization and passes control to a payload (SeaBIOS, GRUB, Tianocore, etc. - these are payloads). So you would have to use something like clover anyway.
On 6/8/20 6:22 PM, lol wrote:
Hi, I wanted to ask if coreboot is capable of booting macOS. There are bootloaders like clover and opencore that does the job but does coreboot do this thing with more efficiency?