Re: serial programming

[Parit Wattanasin]

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> Today's Topics:
> serial programming (Parit Wattanasin)
> Re: serial programming (Peter Stuge)
> Re: serial programming (ron minnich)
> Re: serial programming (Peter Stuge)
>
> --__--__--
>
> Message: 1
> Date: Sat, 13 Dec 2003 20:39:44 -0800 (PST)
> From: Parit Wattanasin 
> Subject: serial programming
> To: [e-mail]
>
> hi, I'm new for LinuxBIOS. I have problem about my
> mainboard(VIA-EPIA)  Now I'm use LinuxBIOS but I
> want
> to customized it to chang payload from etherboot
> with
> my program about serial port(now this mainboard use
> serial console) how can I'change it(my program use
> assembly). Thank you for answer
>
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> --__--__--
>
> Message: 2
> Date: Sun, 14 Dec 2003 06:14:45 +0100
> From: Peter Stuge 
> To: [e-mail]
> Subject: Re: serial programming
>
> On Sat, Dec 13, 2003 at 08:39:44PM -0800, Parit
> Wattanasin wrote:
> > hi, I'm new for LinuxBIOS. I have problem about my
> > mainboard(VIA-EPIA)  Now I'm use LinuxBIOS but I
>
> want
> > to customized it to chang payload from etherboot
>
> with
> > my program about serial port(now this mainboard
>
> use
> > serial console) how can I'change it(my program use
> > assembly). Thank you for answer
>
> The payload can be exchanged from Etherboot to
> another self-contained ELF
> file simply by recompiling LinuxBIOS.
>
> I'm not quite sure about the status of the EPIA port
> in the version 2 CVS
> tree, but it's there and there's been work put into
> it so it should probably
> compile and work just fine.
>
> The best bet is to check the mailing list archives
> for information, and then
> grab the CVS code, or a snapshot, and make your own
> build.
>
> While making your own build you can also take out
> all serial port activity
> not needed for your application, of course.
>
> //Peter
>
> --__--__--
>
> Message: 3
> Date: Sat, 13 Dec 2003 22:52:20 -0700 (MST)
> From: ron minnich 
> To: Peter Stuge 
> cc: [e-mail]
> Subject: Re: serial programming
>
> On Sun, 14 Dec 2003, Peter Stuge wrote:
> > I'm not quite sure about the status of the EPIA
>
> port in the version 2 CVS
> > tree, but it's there and there's been work put
>
> into it so it should probably
> > compile and work just fine.
>
> EPIA is fine in V2, not perfect but FAR better than
> EPIA in v1.
>
> We want to clean up EPIA completely, then fix up
> EPIA-M, but there have 
> been some distractions (SC '03).
>
> ron
>
> --__--__--
>
> Message: 4
> Date: Sun, 14 Dec 2003 08:37:08 +0100
> From: Peter Stuge 
> To: [e-mail]
> Subject: Re: serial programming
>
> On Sat, Dec 13, 2003 at 10:52:20PM -0700, ron
> minnich wrote:
> > On Sun, 14 Dec 2003, Peter Stuge wrote:
> > > I'm not quite sure about the status of the EPIA
>
> port in the version 2 CVS
> > > tree, but it's there and there's been work put
>
> into it so it should probably
> > > compile and work just fine.
> >
> > EPIA is fine in V2, not perfect but FAR better
>
> than EPIA in v1.
> > We want to clean up EPIA completely, then fix up
>
> EPIA-M, but there have
> > been some distractions (SC '03).
>
> Ah, yes, that's right.
>
> I can't wait until I actually have the time to sit
> down and do something
> with LinuxBIOS, last time was over two years ago,
> there's been an amazing
> evolution of the code. I can easily imagine running
> LinuxBIOS 3 or 4 on
> _MANY_ systems in another year or two. It seems
> vendors (like Tyan) are
> picking up too, which is great. Just don't take over
> all of their competent
> people over at LANL, at least not until there's
> support for all of their
> boards in the tree.. >:)
>
> Just a short note to celebrate your success. :)
>
> //Peter
>
> --__--__--
>
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> [e-mail]

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> End of Linuxbios Digest

I'm assemble my serial program to elf-format and
exchange for etherboot.It has error

=LinuxBIOS-1.0.0 Wed Dec 3 11:26:55 ICT 2003
starting..
=Enabled first bank of RAM: 0x08000000 bytes
=Copying LinuxBIOS to ram.
=Jumping to LinuxBIOS.
=POST: 0x39
=LinuxBIOS-1.0.0 Wed Dec 3 11:26:55 ICT 2003
booting...
=POST: 0x40
=...
=...
=...
=Copying IRQ routing tables to 0xf0000...done.
=Verifing priq routing tables copy at
0xf0000...succeed
=POST: 0x96
=Wrote linuxbios table at: 00000500 - 000006b0 
=checksum 8255
= 
=Welcome to elfboot, the open sourced starter.
=January 2002, Eric Biederman.
=Version 1.2
= 
=POST: 0xf8
    37:init_bytes() - zkernel_start:0xfff00000 
=zkernel_mask:0x0000ffff
=Found ELF candiate at offset 0
=New segment addr 0x8048000 size 0xa6 offset 0x0
=filesize 0xa6
=(cleaned up) New segment addr 0x8048000 size 0xa6
=offset 0x0 filesize 0xa6
=Cannot Load ELF Image
=POST: 0xff=

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