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| Line 116: |
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| == Howto(Dangerous, not ready for the wiki) == | | == Howto(Dangerous, not ready for the wiki) == |
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| |
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| === Howto flash sgabios on an Nvidia video card ===
| | * [[/Howto_flash_sgabios_on_an_Nvidia_video_card | Howto flash sgabios on an Nvidia video card]] |
| ==== Use case ====
| |
| * Servers often lack a screen. | |
| * Some blind people also lack a way to see the startup of the computer until the braille tablet is running.
| |
| | |
| This Howto will help you transform your Nvidia video card in a something that send to a serial port what would have been displayed on the screen.
| |
| The card will probably stop working as a graphic card due to the lack of VGA option rom tailored to the card.
| |
| | |
| The user is expected to see the output trough a serial console.
| |
| | |
| ==== Howto ====
| |
| | |
| Here's an example on how to flash sgabios on an Nvidia video card:
| |
| * download flashrom
| |
| * apply that patch:
| |
| diff --git a/gfxnvidia.c b/gfxnvidia.c
| |
| index d0a9feb..35e4687 100644
| |
| --- a/gfxnvidia.c
| |
| +++ b/gfxnvidia.c
| |
| @@ -110,7 +110,7 @@ int gfxnvidia_init(void)
| |
| rpci_write_long(dev, 0x50, reg32);
| |
|
| |
| /* Write/erase doesn't work. */
| |
| - programmer_may_write = 0;
| |
| + //programmer_may_write = 0;
| |
| register_par_programmer(&par_programmer_gfxnvidia, BUS_PARALLEL);
| |
|
| |
| return 0;
| |
| * compile it
| |
| * download and build sgabios
| |
| * Identify your flash chip size by running:
| |
| flashrom -pgfxnvidia
| |
| * save the content of the chip with:
| |
| flashrom -pgfxnvidia -r original.rom
| |
| * pad sgabios to the size of your flashchip:
| |
| dd if=/dev/zero of=sgabios.rom bs=1 count=65536
| |
| dd if=10b79200.rom of=sgabios.rom conv=notrunc
| |
| * flash it(and retry in case of failure, it has a high failure rate)
| |
|
| |
|
| === Howto flash ipxe on an 3com network card === | | === Howto flash ipxe on an 3com network card === |
Revision as of 23:36, 7 June 2014
I've no code in flashrom yet, but I made a flashrom compatible arduino programmer and participated in testing and documentation.
My hardware
Mainboard based programmers
| Device or programmer
|
Flash chip
|
Test result
|
| Asus M4A785T-M mainboard
|
W25x80 (DIP8)
|
- Yes with the BIOS
- Yes with coreboot
|
| Asrock E350M1
|
A25L032
|
- Yes from coreboot
- Untested from the BIOS
|
Lenovo X60
|
MX25L1605D/MX25L1608D
|
|
| Lenovo X60
|
|
|
| Lenovo X60T
|
MX25L1605D/MX25L1608D
|
|
| Lenovo T60
|
MX25L1605D/MX25L1608D
|
|
| PCEngines Alix.1c
|
|
- Yes with coreboot
- Yes with the recovery LPC dongle
|
| Asus N71JQ
|
|
- Requires some bit flippings(with ifdtool and an external programmer) in the flash descriptor.
- Not tested internally.
|
External programmers
| Device or programmer
|
Status
|
| Arduino uno (serprog)
|
- Requires a 5v->3.3v level shifter for most current flash chips.
- Issues with the 8u2/8u3 when using the serial port at high speed.
|
| Arduino duemillanove (serprog)
|
- Requires a 5v->3.3v level shifter for most current flash chips.
- Works fine otherwise.
|
| Arduino Due ( no support for it yet )
|
- 3.3v level output on SPI.
- Not working: No support for it yet.
|
| openmoko debug board (ft2232_spi:type=openmoko)
|
|
| 3com PCI NIC (10b7:9200) (nic3com)
|
|
| Sata SII PCI card
|
- writing and erasing worked fine.
|
| Really old PCI realtek cards
|
|
| Some GNU/Linux embedded boards (linux_spi)
|
- Backporting some mainline kernel patches is required on some very old (2.6.35) kernel for omap3.
- Works fine otherwise
|
An atahpt PCI card
|
- Didn't work when adding the PCI IDS, but the atahpt is known not to work according to the mailing list.
|
old AGP Nvidia card
|
- Worked with a patch (documented below)
|
| Nvidia geforce 210 PCIe 16x card
|
- didn't work when adding the PIC IDs
|
I've also the following hardware:
- pomona clip for recovering my x60
- some chips(2MB SO8(currently soldered), 16MB SO8)
Work in progress for the wiki
Don't try that, it's dangerous!!!!
Howto(Dangerous, not ready for the wiki)
Howto flash ipxe on an 3com network card
Clone ipxe:
$ git clone git://git.ipxe.org/ipxe.git
Then locate your network card with:
# lspci -nnnn
it will look like that:
[...]
00:0c.0 Ethernet controller [0200]: 3Com Corporation 3c905C-TX/TX-M [Tornado] [10b7:9200] (rev 78)
[...]
Note the pci ids that are here: [10b7:9200]
Ajust your settings in src/config/local/
Then build ipxe:
cd ipxe/src/
make bin/10b79200.rom
Then backup the existing rom:
cd ../../
flashrom -pnic3com -r 3com_rom_backup.rom
The flashchip size is written in the output of that command.
Then generate a rom that is exactly the size of your rom chip:
dd if=/dev/zero of=bin/10b79200.rom.64k bs=1 count=65536
dd if=bin/10b79200.rom of=bin/10b79200.rom.64k conv=notrunc