Board:kontron/986lcd-m: Difference between revisions
m (→With CBFS: Use the amipci_01.20 file name, as this is what amideco will give you.) |
mNo edit summary |
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|ISA_cards_status = N/A | |ISA_cards_status = N/A | ||
|AMR_cards_status = N/A | |AMR_cards_status = N/A | ||
|Mini_PCI_cards_status = Untested | |||
|PCIX_cards_status = N/A | |||
|AGP_cards_status = N/A | |AGP_cards_status = N/A | ||
|PCI_cards_status = OK | |PCI_cards_status = OK | ||
|PCI_cards_comments = Works fine, tested with a PCI network card. | |PCI_cards_comments = Works fine, tested with a PCI network card. | ||
|PCIE_x1_status = N/A | |PCIE_x1_status = N/A | ||
|PCIE_x2_status = N/A | |PCIE_x2_status = N/A | ||
Line 262: | Line 263: | ||
* If you use [[FILO]], SATA will probably be '''hda''' and '''hdb''', while '''hdc''' is the master drive of the IDE controller. | * If you use [[FILO]], SATA will probably be '''hda''' and '''hdb''', while '''hdc''' is the master drive of the IDE controller. | ||
* If you experience kernel crashes (when building without onboard VGA support) try to blacklist the '''agpgart''' and '''intel_agp''' kernel modules. | * If you experience kernel crashes (when building without onboard VGA support) try to blacklist the '''agpgart''' and '''intel_agp''' kernel modules. | ||
== Boot speed == | |||
This is a non-scientific, quick'n'dirty boot speed measurement using coreboot v2 (r4341) + FILO trunk (r98) and the vendor BIOS, where coreboot was configured with no serial output (loglevel 0). | |||
{| border="0" style="font-size: smaller" | |||
|- bgcolor="#6699ff" | |||
! align="left" | BIOS | |||
! align="left" | Power-up — GRUB | |||
! align="left" | Power-up — Linux login prompt | |||
|- bgcolor="#eeeeee" | |||
| Vendor BIOS (boot from SATA disk) | |||
| 13.1s | |||
| 38.8 | |||
|- bgcolor="#eeeeee" | |||
| coreboot (boot from SATA disk) | |||
| 7.3s | |||
| 37.9 | |||
|} | |||
Although coreboot is ca. 6 seconds faster at the GRUB prompt, the "Loading initrd" part of the Linux kernel booting seems to take longer than on the vendor BIOS. This should be investigated. | |||
{{PD-self}} | {{PD-self}} |
Revision as of 21:00, 5 June 2009
![](/images/thumb/7/72/Kontron_986lcd_m_mitx_top.jpg/300px-Kontron_986lcd_m_mitx_top.jpg)
![](/images/thumb/d/d4/Kontron_986lcd_m_mitx_side.jpg/300px-Kontron_986lcd_m_mitx_side.jpg)
![](/images/thumb/c/c1/Kontron_986lcd_m_mitx_backpanel.jpg/300px-Kontron_986lcd_m_mitx_backpanel.jpg)
![](/images/thumb/b/b0/Kontron_986lcd_m_mitx_with_power_supply.jpg/300px-Kontron_986lcd_m_mitx_with_power_supply.jpg)
This page describes how to use coreboot on the Kontron 986LCD-M/mITX mainboard. It is maintained by Uwe Hermann.
The mainboard's manual (PDF) is available from the vendor website (together with various other documents).
Status
Device/functionality | Status | Comments | ||||||
---|---|---|---|---|---|---|---|---|
CPU | ||||||||
CPU works | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | Intel(R) Core(TM)2 CPU T5300 @ 1.73GHz (dual core) | ||||||
L1 cache enabled | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | CPU: L1 I cache: 32K, L1 D cache: 32K | ||||||
L2 cache enabled | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | L2 cache: 2048K | ||||||
L3 cache enabled | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
Multiple CPU support | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
Multi-core support | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | Both cores show up in /proc/cpuinfo. | ||||||
Hardware virtualization | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | Untested | Hardware virtualization is not supported by this CPU (modprobe kvm-intel fails on coreboot + vendor BIOS). | ||||||
RAM | ||||||||
EDO | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
SDRAM | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
SO-DIMM | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
DDR | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
DDR2 | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | Works fine, but currently you need to populate both RAM slots with DIMMs of the same size (and reasonably similar timing probably: The controller has to operate in Dual Channel mode for now). | ||||||
DDR3 | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
Dual channel support | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | Works fine according to memtest86+ (Tested: 2x 1GB DIMMs, interleaved mode). | ||||||
ECC support | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
On-board Hardware | ||||||||
On-board IDE 3.5" | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | |||||||
On-board IDE 2.5" | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
On-board SATA | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | Tested: SATA disk ((hd0,0) / hda1 in FILO, /dev/sda1 in Linux). | ||||||
On-board SCSI | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
On-board USB | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | Tested: USB thumb drive in all 4 backpanel USB ports, as well as on the USB pin headers on the board (USB6_7, see manual). | ||||||
On-board VGA | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | You need to prepend the VGA blob from the proprietary BIOS for this to work. Console works, X11 works (use the intel X.org driver). | ||||||
On-board Ethernet | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | All three NICs show up correctly in ifconfig -a and work fine. | ||||||
On-board Audio | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | Works fine. | ||||||
On-board Modem | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
On-board FireWire | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | Seems to work fine (backpanel FireWire port), even with pci=noacpi. Tested using the eth1394 module for IPv4-over-FireWire. The FireWire pinheader IEEE1394_1 (see manual) is not yet well-tested. | ||||||
On-board Smartcard reader | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
On-board CompactFlash | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | There's an onboard CompactFlash slot on the back-side of the board. FILO sees it as (hd2,0) / hdc1, Linux as /dev/sdb1. | ||||||
On-board PCMCIA | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
On-board Wifi | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
On-board Bluetooth | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
On-board SD card reader | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
Add-on slots/cards | ||||||||
ISA add-on cards | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
Audio/Modem-Riser (AMR/CNR) cards | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
PCI add-on cards | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | Works fine, tested with a PCI network card. | ||||||
Mini-PCI add-on cards | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | Untested | |||||||
Mini-PCI-Express add-on cards | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | Unknown | |||||||
PCI-X add-on cards | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
AGP graphics cards | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
PCI Express x1 add-on cards | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
PCI Express x2 add-on cards | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
PCI Express x4 add-on cards | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
PCI Express x8 add-on cards | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
PCI Express x16 add-on cards | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | WIP | Doesn't seem to work, yet. A PCIe graphics card doesn't appear in lspci, | ||||||
PCI Express x32 add-on cards | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
HTX add-on cards | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
Legacy / Super I/O | ||||||||
Floppy | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
Serial port 1 (COM1) | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | |||||||
Serial port 2 (COM2) | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | Untested | There are also COM3 and COM4 pin headers on this board. | ||||||
Parallel port | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | Doing modprobe ppdev works, but no further test were performed. You probably need a special cable to connect to the onboard pin-header. | ||||||
PS/2 keyboard | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | |||||||
PS/2 mouse | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | |||||||
Game port | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
Infrared | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | Untested | |||||||
PC speaker | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | |||||||
DiskOnChip | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
Input | ||||||||
Trackpoint | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
Touchpad | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
Fn Hotkeys | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
Fingerprint Reader | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
Laptop | ||||||||
Docking VGA | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
Docking LAN | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
Docking USB | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
Docking Audio | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
Docking Displayport | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
Thinklight | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
Webcam | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
Miscellaneous | ||||||||
Sensors / fan control | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | Works fine using the w83627hf, coretemp (and also i2c-dev, i2c-i810, and eeprom) Linux kernel modules. | ||||||
Hardware watchdog | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | Not yet actually tested, but it seems to be found: iTCO_wdt: Found a ICH7 or ICH7R TCO device (Version=2, TCOBASE=0x0560). | ||||||
SMBus | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | Untested | |||||||
CAN bus | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
CPU frequency scaling | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | WIP | With pci=noacpi the cpufreq-info utility doesn't output anything useful. On vendor BIOS you can use p4-clockmod (discouraged) or acpi-cpufreq (iff you enabled the respective option in the BIOS menu). On coreboot with ACPI, you can modprobe p4-clockmod successfully (but not acpi-cpufreq), but it's unclear if it really works correctly. | ||||||
Other powersaving features | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
ACPI | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | There is an ACPI implementation for this board which seems to work, but not much of it has been tested, yet. | ||||||
Reboot | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | Seems to work fine, even with pci=noacpi. | ||||||
Poweroff | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | Works fine. | ||||||
Suspend | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | Unknown | |||||||
Nonstandard LEDs | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
High precision event timers (HPET) | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | The HPET is detected by Linux (hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0) and powertop output suggests that it works ok. | ||||||
Random number generator (RNG) | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
Wake on modem ring | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | |||||||
Wake on LAN | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | Works fine. Tested using the wakeonlan utility. | ||||||
Wake on keyboard | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | Untested | Works fine with vendor BIOS. | ||||||
Wake on mouse | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | N/A | Doesn't seem to be supported (by the hardware / vendor BIOS), tested with a PS/2 mouse, as well as with a USB mouse. | ||||||
TPM | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | Unknown | |||||||
Flashrom | OK=lime | TODO=red | No=red | WIP=orange | Untested=yellow | N/A=lightgray | yellow }}" | OK | Works fine, but you might need -m kontron:986lcd-m when booted with the vendor BIOS (not needed when booted with coreboot). |
Build tutorial (without onboard VGA)
$ svn co svn://coreboot.org/repos/trunk/coreboot-v2 $ cd coreboot-v2/targets $ ./buildtarget kontron/986lcd-m $ cd kontron/986lcd-m/kontron_986lcd_m
Now copy your payload into the current directory and name it payload.elf. Then:
$ make -s
The resulting coreboot.rom is your coreboot ROM image you can flash using flashrom.
Build tutorial (with onboard VGA)
$ svn co svn://coreboot.org/repos/trunk/coreboot-v2 $ cd coreboot-v2/targets
The next step differs on CBFS and non-CBFS configurations. Revision 4212 and beyond default to CBFS, while older revisions default to non-CBFS. You can change the build mode in src/mainboard/kontron/986lcd-m/Options.lb by changing the default CONFIG_CBFS to 0.
Without CBFS
In order to use on-board VGA you have to use the VGA blob from the vendor BIOS, and modify the coreboot config files a bit. Edit src/mainboard/kontron/986lcd-m/Config.lb in the section starting with chip drivers/pci/onboard. Depending on whether you use a 1 MB, 512 KB, or 256 KB ROM chip, you'll have to set the correct rom_address value:
chip drivers/pci/onboard device pci 02.0 on end # vga controller # register "rom_address" = "0xfffc0000" # 256 KB image # register "rom_address" = "0xfff80000" # 512 KB image register "rom_address" = "0xfff00000" # 1 MB image end
Skip the section below.
With CBFS
To add a VGABIOS image to the CBFS image add to your targets/kontron/986lcd-m/Config.lb:
pci_rom amipci_01.20 vendor_id=0x8086 device_id=0x27a2
where amipci_01.20 is the filename of the VGA image you create in the next section (you can choose it freely). Because the build happens from various directories, it's easier to use a full path to the file.
Getting the VGABIOS image
Then, you have to obtain the VGA blob from the vendor BIOS. Thus, get the original vendor BIOS image using flashrom:
$ flashrom -r kontron.dd
You can list all components of the vendor BIOS via the amideco utility (apt-get install amideco on Debian systems):
$ amideco kontron.dd -l -=AmiBIOSDeco, version 0.31e (Linux)=- FileLength : 100000 (1048576 bytes) FileName : kontron.dd AMIBIOS information: Version : 0800 Packed Data : 693A0 (431008 bytes) Start : DF83C Packed Offset : DF83C Offset : 0 Released : 07 June 2007 DirName : kontron.--- +------------------------------------------------------------------------------+ | Class.Instance (Name) Packed ---> Expanded Compression Offset | +------------------------------------------------------------------------------+ 08 01 ( Interface) 00798 ( 01944) => 00798 ( 01944) DF83Ch 04 02 ( Setup Client) 05B6E ( 23406) => 09437 ( 37943) + D9CB8h 0C 03 ( ROM-ID) 00008 ( 00008) => 00008 ( 00008) D9C9Ch 0E 04 ( OEM Logo) 0005D ( 00093) => 03E11 ( 15889) + D9C28h 1A 05 ( Small Logo) 00532 ( 01330) => 026A2 ( 09890) + D96E0h 18 06 (ADM (Display MGR)) 017FD ( 06141) => 04245 ( 16965) + D7ECCh 19 07 ( ADM Font) 0059C ( 01436) => 01304 ( 04868) + D791Ch 1B 08 ( SLAB) 2FF20 (196384) => 65299 (414361) + A79E8h 21 09 ( Multilanguage) 032A6 ( 12966) => 0723E ( 29246) + A472Ch 20 10 ( PCI AddOn ROM) 09145 ( 37189) => 0EC00 ( 60416) + 9B5D0h 20 11 ( PCI AddOn ROM) 09681 ( 38529) => 10000 ( 65536) + 91F38h 20 12 ( PCI AddOn ROM) 06008 ( 24584) => 0A800 ( 43008) + 8BF1Ch 11 13 ( P6 Microcode) 00001 ( 00001) => 00005 ( 00005) + 7DEF4h 90 14 ( User-Defined ;)) 021DE ( 08670) => 04200 ( 16896) + 7BD00h 2A 15 ( User ROM) 005F8 ( 01528) => 00C7A ( 03194) + 7B6F4h 2E 16 ( User ROM) 047B3 ( 18355) => 07800 ( 30720) + 76F2Ch 06 17 ( DMI Data) 00258 ( 00600) => 01024 ( 04132) + 76CC0h 80 18 ( User-Defined ;)) 00044 ( 00068) => 00044 ( 00068) 76C68h Total Sections : 18
The next step is to extract all components:
$ amideco kontron.dd -x -=AmiBIOSDeco, version 0.31e (Linux)=- FileLength : 100000 (1048576 bytes) FileName : kontron.dd AMIBIOS information: Version : 0800 Packed Data : 693A0 (431008 bytes) Start : DF83C Packed Offset : DF83C Offset : 0 Released : 07 June 2007 DirName : kontron.--- +------------------------------------------------------------------------------+ | Class.Instance (Name) Packed ---> Expanded Compression Offset | +------------------------------------------------------------------------------+ Total Sections : 18
The file we need is the 64KB VGA blob named amipci_01.20:
$ ls amibody.04 amibody.0e amibody.1a amibody.2e amipci_01.20 amibody.06 amibody.11 amibody.1b amibody.80 amipci_02.20 amibody.08 amibody.18 amibody.21 amibody.90 kontron.dd amibody.0c amibody.19 amibody.2a amipci_00.20
In order to use onboard VGA in a non-CBFS configuration you further need to edit targets/kontron/986lcd-m/Config.lb. Comment out the line
option ROM_SIZE = 1024 * 1024
and enable the line
option ROM_SIZE = (1024 * 1024) - (64 * 1024)
instead (we're assuming a 1 MB ROM chip here, change that if you use another size). This will leave 64 KB room in the coreboot ROM image. You don't have to do anything here with CBFS.
We can now build coreboot as usual:
$ ./buildtarget kontron/986lcd-m $ cd kontron/986lcd-m/kontron_986lcd_m
Now copy your payload into the current directory and name it payload.elf. Then:
$ make -s
Finally, prepend the 64 KB VGA blob to the coreboot image, if you're using a non-CBFS configuration:
$ cat amipci_01.20 coreboot.rom > coreboot_final.rom
The resulting coreboot_final.rom is your coreboot ROM image you can flash using flashrom.
Notes
- If you use FILO, SATA will probably be hda and hdb, while hdc is the master drive of the IDE controller.
- If you experience kernel crashes (when building without onboard VGA support) try to blacklist the agpgart and intel_agp kernel modules.
Boot speed
This is a non-scientific, quick'n'dirty boot speed measurement using coreboot v2 (r4341) + FILO trunk (r98) and the vendor BIOS, where coreboot was configured with no serial output (loglevel 0).
BIOS | Power-up — GRUB | Power-up — Linux login prompt |
---|---|---|
Vendor BIOS (boot from SATA disk) | 13.1s | 38.8 |
coreboot (boot from SATA disk) | 7.3s | 37.9 |
Although coreboot is ca. 6 seconds faster at the GRUB prompt, the "Loading initrd" part of the Linux kernel booting seems to take longer than on the vendor BIOS. This should be investigated.
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