ROM-Size-Problem

[Thomas Leidenfrost]

Hello list,

here's my actual config-file, but somehow the resulting linuxbios.rom is 
only 64 kB instead of 256 kB, although setting: "option ROM_SIZE=262144"

Filling the Linuxbios.rom to 256 kB with zeros (dd if=/dev/zero bs=1k 
count=192 >> linuxbios.rom)  or with itself three more times (cat 
linuxbios.rom linuxbios.rom linuxbios.rom linuxbios.rom > bios256.rom) 
doesn't work, the monitor displays nothing (is framebuffer neccessary 
for that?!). So, how to make the generated linuxbios.rom will be 256 kB?

Thx, Tom

target testawb651
mainboard ics-d/awb651

# Enable Serial Console for debugging
option SERIAL_CONSOLE=1
option TTYS0_BAUD=38400
option VIDEO_CONSOLE=1

option DEFAULT_CONSOLE_LOGLEVEL=9
option DEBUG=1

# option HAVE_FRAMEBUFFER=1
option USE_GENERIC_ROM=1
option USE_ELF_BOOT=1
option ROM_SIZE=262144
option STD_FLASH=1

linux /stuff2/Linuxe/kernel2422

commandline root=/dev/hda1 console=ttyS0,115200 FS_MODE=ro hda=flash

[Stefan Reinauer]

* Thomas Leidenfrost  [040720 11:57]:
> Filling the Linuxbios.rom to 256 kB with zeros (dd if=/dev/zero bs=1k 
> count=192 >> linuxbios.rom)  or with itself three more times (cat 
> linuxbios.rom linuxbios.rom linuxbios.rom linuxbios.rom > bios256.rom) 
> doesn't work, the monitor displays nothing (is framebuffer neccessary 
> for that?!). So, how to make the generated linuxbios.rom will be 256 kB?

Please try connecting a serial nullmodem cable and see if you get any
output there. What graphics card does the system have? LinuxBIOS is
unlikely to initialize your video correctly, except on a very small
number of boards with onboard graphics (or with testbios)

linuxbios.rom is only the linuxbios image without the payload it seems.
I have in mind that V1 was not as solid with payload handling as V2 is,
but I may be wrong..
>

[Thomas Leidenfrost]

okay, I've got a nullmodem-cable here, but how can I see if there is any 
output?

my graphics-controller is integrated in the Cx5530A-chipset. I think it 
should be supported, or am I wrong?

Thx, Tom

Stefan Reinauer wrote:
> Thomas Leidenfrost  [040720 11:57]:
> > Filling the Linuxbios.rom to 256 kB with zeros (dd if=/dev/zero bs=1k 
> > count=192 >> linuxbios.rom)  or with itself three more times (cat 
> > linuxbios.rom linuxbios.rom linuxbios.rom linuxbios.rom > bios256.rom) 
> > doesn't work, the monitor displays nothing (is framebuffer neccessary 
> > for that?!). So, how to make the generated linuxbios.rom will be 256 kB?
>
> Please try connecting a serial nullmodem cable and see if you get any
> output there. What graphics card does the system have? LinuxBIOS is
> unlikely to initialize your video correctly, except on a very small
> number of boards with onboard graphics (or with testbios)
>
> linuxbios.rom is only the linuxbios image without the payload it seems.
> I have in mind that V1 was not as solid with payload handling as V2 is,
> but I may be wrong..
>
> Linuxbios mailing list
> [e-mail]
> http://www.clustermatic.org/mailman/listinfo/linuxbios

[Stefan Reinauer]

* Thomas Leidenfrost  [040720 13:28]:
> okay, I've got a nullmodem-cable here, but how can I see if there is any 
> output?

Connect it to your LinuxBIOS machine on the one side, and to another
machine running a terminal program on the other side (ie minicom or
screen)
> my graphics-controller is integrated in the Cx5530A-chipset. I think it 
> should be supported, or am I wrong?

Someone here on the list got it working, but generally speaking, it does
not work out of the box. Cx5530 has a pretty broken design..

Stefan

[Ian Smith]

Thomas,

On Sat, 2004-08-07 at 16:57, Stefan Reinauer wrote:
> > my graphics-controller is integrated in the Cx5530A-chipset. I think it 
> > should be supported, or am I wrong?
>
> Someone here on the list got it working, but generally speaking, it does
> not work out of the box. Cx5530 has a pretty broken design..

I did a quick and dirty port of LinuxBios V1 to an SBC with a GX1 CPU
and a CS5530 using the cocom/voyager2 directory as a base and managed to
get it up and running fairly quickly with console output on the serial
port.

Basic console graphics took a little longer (but not much) but
unfortunately I then ran out of time before I got graphics working
fully.

If you want I can dig out the diffs and my config file and mail them to
you but I should warn you it was a bit rough and ready so they would
definitely need more work (and I don't really have time to pursue it
myself right now).

However a quick look at your config compared to mine shows a few lines
which I have in mine which may be significant (or not):

option ZKERNEL_START=0xfffc0000
option ZKERNEL_MASK=0xffff

option PAYLOAD_SIZE=196608

Of course if you're using LinuxBios V2 then this won't be much use to
you I'm afraid.
> Stefan

Cheers

Ian
> Linuxbios mailing list
> [e-mail]
> http://www.clustermatic.org/mailman/listinfo/linuxbios

[Stefan Reinauer]

* Ian Smith  [040807 21:12]:
> Of course if you're using LinuxBios V2 then this won't be much use to
> you I'm afraid.
>
> Cheers
>
> Ian

Right. Geode support has not been ported to V2 yet. And I doubt
somebody will do it. Even though it is pretty straight forward..

V1 works fine though and V2 gives no immediate advantages over V1 on
Geode at the moment

Stefan