Patrick Georgi has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/33068 )
Change subject: soc/rockchip/rk3288: Disable bootblock console ......................................................................
Patch Set 1:
The issue only appears when compiling with CONFIG_CHROMEOS, so we could make it contingent on that. Also, enabling LTO in coreboot will probably make enough room for things to work again, but that's a larger change than I'd propose to get master green again.
The original issue came up when various die() calls were replaced by die_with_post_code(). Interestingly I couldn't make it go away by #defining the latter to the former (while dropping the post code part)