[coreboot] kabylake RVP7 coreboot pcie/sata issue

Our new board has intel skylake  I3-6100U CPU,  BIOS use coreboot based on kabylake RVP7 it can boot linux OS successfully. but there are two issues: 1. intel Ethernet PHY  I211 connected on I3-U6100  PCIE lane 1,   I211 is not shown in lspci. and serial port log: PCI: 00:1c.0 scanning... do_

[coreboot] Memory mapped IO UART for seabios sercon-port

Our board has intel skylake  I3-6100U  CPU we use seabios as payload to boot Linux OS. I only can turn on seabios serial debug port using memory mapped address 0xfe034000 ( please see following lspci -vv output) but can't turn on serial console for choosing boot menu because seabios don't suppo