Board:lenovo/g505s

The wiki is being retired!

Documentation is now handled by the same processes we use for code: Add something to the Documentation/ directory in the coreboot repo, and it will be rendered to https://doc.coreboot.org/. Contributions welcome!

This page describes how to use coreboot on the Lenovo G505S mainboard.

This page is a work in progress. ACPI is still being worked on, however due to the nature of ACPI it may take some time to get this right.

Known Issues

• S3 Suspend/Resume - You will need a Console verbosity set to at least "BIOS_INFO" or greater for it to work!

                     Coreboot is likely too fast for the Embedded Controller firmware on the S3 resume hot path.

Overview

Hardware

• AMD A-series AMD A10-5750M APU
• AMD AGESA Hudson part of the chipset, AMD AGESA Hudson southbridge
• ENE KB9012 EC However we use the ENE932 EC driver in coreboot's tree.

Details

...

• 1x MXIC MX25L1606E (SO8, soldered) 16 Mbit SPI flash (BIOS)

Building a coreboot image

Make a fresh clone of Coreboot into a empty directory and run:

make crossgcc-i386

Make a cup of tea.. Then run:

make menuconfig

and select Lenovo/G505S under "Mainboard -> Mainboard vendor/model" leaving everything else as defaults. Then finally do,

make

To flash the board with flashrom run:

flashrom -p ft2232_spi:type=2232H,port=A -c "MX25L1605A/MX25L1606E" -w build/coreboot.rom

assuming you have a SPI flasher setup.

Status

Device/functionality	Status	Comments
CPU
CPU works	OK
L1 cache enabled	OK	Always on
L2 cache enabled	OK	Always on
L3 cache enabled	N/A
Multiple CPU support	N/A
Multi-core support	N/A
Hardware virtualization	OK
RAM
EDO	N/A
SDRAM	N/A
SO-DIMM	N/A
DDR	N/A
DDR2	N/A
DDR3	OK	Tested with 4GB two-rank module.
Dual channel support	N/A
ECC support	?
On-board Hardware
On-board IDE 3.5"	N/A
On-board IDE 2.5"	N/A
On-board SATA	OK
On-board SCSI	N/A
On-board USB	OK
On-board VGA	OK	BIOS/console: works.
On-board Ethernet	OK
On-board Audio	OK	Basic two channel audio works fine.
On-board Modem	N/A
On-board FireWire	N/A
On-board Smartcard reader	N/A
On-board CompactFlash	N/A
On-board PCMCIA	N/A
On-board Wifi	N/A
On-board Bluetooth	N/A
On-board SD card reader	N/A
Add-on slots/cards
ISA add-on cards	N/A
Audio/Modem-Riser (AMR/CNR) cards	N/A
PCI add-on cards	OK
Mini-PCI add-on cards	N/A
Mini-PCI-Express add-on cards	Unknown
PCI-X add-on cards	N/A
AGP graphics cards	N/A
PCI Express x1 add-on cards	OK	miniPCIe slot works, mSATA/miniPCIe slot does not!?
PCI Express x2 add-on cards	N/A
PCI Express x4 add-on cards	N/A
PCI Express x8 add-on cards	N/A
PCI Express x16 add-on cards	N/A
PCI Express x32 add-on cards	N/A
HTX add-on cards	N/A
Legacy / Super I/O
Floppy	N/A
Serial port 1 (COM1)	OK
Serial port 2 (COM2)	N/A
Parallel port	N/A
PS/2 keyboard	OK
PS/2 mouse	OK
Game port	N/A
Infrared	Untested	CIR header currently turned off in devicetree.cb
PC speaker	OK
DiskOnChip	N/A
Input
Trackpoint	N/A
Touchpad	N/A
Fn Hotkeys	N/A
Fingerprint Reader	N/A
Laptop
Docking VGA	N/A
Docking LAN	N/A
Docking USB	N/A
Docking Audio	N/A
Docking Displayport	N/A
Thinklight	N/A
Webcam	N/A
Miscellaneous
Sensors / fan control	OK
Hardware watchdog	Pending	What needs to be done here??
SMBus	OK
CAN bus	N/A
CPU frequency scaling	OK
Other powersaving features	N/A
ACPI	WIP	Mostly working, needs a good Review!
Reboot	OK
Poweroff	OK
Suspend	OK
Nonstandard LEDs	N/A
High precision event timers (HPET)	OK
Random number generator (RNG)	OK
Wake on modem ring	N/A
Wake on LAN	Untested
Wake on keyboard	Untested
Wake on mouse	Untested
TPM	Unknown
Flashrom	OK	MXIC MX25L1606E 2MB SPI Flash

Issue Analysis

...

Coreboot boot log

See [1] for a recent log.

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