Make it possible to boot encrypted HDDs when using seabios as payload on coreboot

I liked to try out seabios instead of grub as payload and after flashing a coreboot image with seabios as only payload i got the message that i cant find any bootable device. Seems like seabios cant boot a basic debian installation where you encrypt the hdd and write grub into the MBR - the most default configuration.
I have search trough the last months seabios mailing list archives but cant find a talk about that.
Are there any plans of adding support for this?

[Kevin O'Connor]

On Thu, Feb 23, 2017 at 12:26:25AM +0100, [e-mail] wrote:
> I liked to try out seabios instead of grub as payload and after
> flashing a coreboot image with seabios as only payload i got the
> message that i cant find any bootable device.

[...]

If you're having a problem, please post the debug log as described at:

https://www.seabios.org/Debugging

-Kevin