[coreboot] Coreboot, supporting this Dell laptop motherboard?

[thejapanscout .]

I want to see if coreboot could support an old Latitude D510 I have from
late 2005. It's suitable for low-end operations such as running Firefox and
computations, and I'm currently running Lubuntu on this thing.

Vendor: Dell
Motherboard ID: 3TZKF91, according to dmidecode -s system-seriel-number
CPU: Pentium M, Type 0, Family 6, Model 13, Stepping 8
Northbridge/Southbridge: likely 82915GM(?), ICH6/M Southbridge

lspci -tvnn output:
-[0000:00]-+-00.0  Intel Corporation Mobile 915GM/PM/GMS/910GML Express
Processor to DRAM Controller [8086:2590]
           +-02.0  Intel Corporation Mobile 915GM/GMS/910GML Express
Graphics Controller [8086:2592]
           +-02.1  Intel Corporation Mobile 915GM/GMS/910GML Express
Graphics Controller [8086:2792]
           +-1d.0  Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family)
USB UHCI #1 [8086:2658]
           +-1d.1  Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family)
USB UHCI #2 [8086:2659]
           +-1d.2  Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family)
USB UHCI #3 [8086:265a]
           +-1d.3  Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family)
USB UHCI #4 [8086:265b]
           +-1d.7  Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family)
USB2 EHCI Controller [8086:265c]
           +-1e.0-[02-06]--+-00.0  Broadcom Corporation BCM4401-B0
100Base-TX [14e4:170c]
           |               +-01.0  Texas Instruments PCI6515 Cardbus
Controller [104c:8036]
           |               +-01.2  Texas Instruments Device [104c:8037]
           |               -03.0  Broadcom Corporation BCM4318 [AirForce
One 54g] 802.11g Wireless LAN Controller [14e4:4318]
           +-1e.2  Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family)
AC'97 Audio Controller [8086:266e]
           +-1e.3  Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family)
AC'97 Modem Controller [8086:266d]
           +-1f.0  Intel Corporation 82801FBM (ICH6M) LPC Interface Bridge
[8086:2641]
           -1f.2  Intel Corporation 82801FBM (ICH6M) SATA Controller
[8086:2653]

There is no Super I/O chip on the mainboard, nor one can be detected by
superiotool. Sadly, this is where my venture ends here as flashrom refuses
to identify the motherboard because it halts if it finds an unsupported
laptop, so I can't identify the flash chip. SPI, maybe?