[LinuxBIOS] Problem on compilation

Hi all,

I have some problem on LinuxBios compilation, some people tried to help
me, but for now I am always blocked. This is all of my step for compil :

I use buildtarget like this :

in ../targets/ :

$ ./buildtarget advantech/pcm-5823

see file log1 in Archive.tar.gz

cd advantech/pcm-5823/pcm-5823/

$ export LC_ALL=en_US
$ make

see file log2 in Archive.tar.gz

The log file contains the complete compilation logs.

If you have any question on my configuration, ask me ;)

in the Archive.tar.gz you have all of my config file

thank's for your help

regards

Ccases

PS : My mail server bug last week, and I have receive just a part of mail
of the mailing list not all, and I don't know if my last mail as sent or
not, sorry if it's a doubled mail.

[LinuxBIOS] Question about Config file

Hi all,

I have an little question, the size of the chip (bios) is declare only in
the ../targets/<mother>/<board>/Config.lb at the line ROM_IMAGE_SIZE, or
is in other config file, because when y compil the size of my
linuxbios.rom is 128ko , but my chip is an 256ko, and ROM_IMAGE_SIZE is
déclare at 256*1024,

thank's by adavance for your help,

regards

Ccases

[LinuxBIOS] Question about Config file

> Hi all,
>
> I have an little question, the size of the chip (bios) is declare only in
> the ../targets/<mother>/<board>/Config.lb at the line ROM_IMAGE_SIZE, or
> is in other config file, because when y compil the size of my
> linuxbios.rom is 128ko , but my chip is an 256ko, and ROM_IMAGE_SIZE is
> déclare at 256*1024,
>
> thank's by adavance for your help,
>
> regards
>
> Ccases

Sorry it's ROM_SIZE not ROM_IMAGE_SIZE everywhere

[LinuxBIOS] Question about Config file

[Corey Osgood]

[e-mail] wrote:
> > Hi all,
> >
> > I have an little question, the size of the chip (bios) is declare only in
> > the ../targets/<mother>/<board>/Config.lb at the line ROM_IMAGE_SIZE, or
> > is in other config file, because when y compil the size of my
> > linuxbios.rom is 128ko , but my chip is an 256ko, and ROM_IMAGE_SIZE is
> > déclare at 256*1024,
> >
> > thank's by adavance for your help,
> >
> > regards
> >
> > Ccases
>
> Sorry it's ROM_SIZE not ROM_IMAGE_SIZE everywhere

In the target Config.lb, you should have ROM_SIZE = 256*1024 (or you can
calculate it out), which I see you have, and I've got ROM_IMAGE_SIZE =
0x10000. The options in Options.lb and Config.lb (in src/...) should, in
theory, never have to be changed for a different flash part size. If
you're only building a fallback image, you'll have to adjust
FALLBACK_SIZE in Options.lb to be the size of the whole flash part
(256*1024), and also modify failover.c to only boot the fallback image,
is that maybe where the problem is?

-Corey

[LinuxBIOS] Question about Config file

> [e-mail] wrote:
> > > Hi all,
> > >
> > > I have an little question, the size of the chip (bios) is declare only
> > > in
> > > the ../targets/<mother>/<board>/Config.lb at the line ROM_IMAGE_SIZE,
> > > or
> > > is in other config file, because when y compil the size of my
> > > linuxbios.rom is 128ko , but my chip is an 256ko, and ROM_IMAGE_SIZE is
> > > déclare at 256*1024,
> > >
> > > thank's by adavance for your help,
> > >
> > > regards
> > >
> > > Ccases
> >
> > Sorry it's ROM_SIZE not ROM_IMAGE_SIZE everywhere
>
> In the target Config.lb, you should have ROM_SIZE = 256*1024 (or you can
> calculate it out), which I see you have, and I've got ROM_IMAGE_SIZE =
> 0x10000. The options in Options.lb and Config.lb (in src/...) should, in
> theory, never have to be changed for a different flash part size. If
> you're only building a fallback image, you'll have to adjust
> FALLBACK_SIZE in Options.lb to be the size of the whole flash part
> (256*1024), and also modify failover.c to only boot the fallback image,
> is that maybe where the problem is?
>
> -Corey

I use the fallback and the normal mode, if my chip has a size 256*1024,
what  size of FALLBACK_SIZE and ROM_IMAGE_SIZE I can choose, I have some
difficulty to define the role of the ROM_IMAGE_SIZE, the ROM_SIZE define
the  size of the chip, the FALLBACK_SIZE define the size of the fallback
mode, but the ROM_IMAGE_SIZE ??? I don't understand the goal of
ROM_IMAGE_SIZE, if you have an better explaination that on the Web site, I
would appreciate much.

Thanks by advance for your help.

regards

Ccases

[LinuxBIOS] Question about Config file

[Corey Osgood]

> I use the fallback and the normal mode, if my chip has a size 256*1024,
> what  size of FALLBACK_SIZE and ROM_IMAGE_SIZE I can choose, I have some
> difficulty to define the role of the ROM_IMAGE_SIZE, the ROM_SIZE define
> the  size of the chip, the FALLBACK_SIZE define the size of the fallback
> mode, but the ROM_IMAGE_SIZE ??? I don't understand the goal of
> ROM_IMAGE_SIZE, if you have an better explaination that on the Web site, I
> would appreciate much.

Just to make sure first, after changing anything in the config'lb or
options.lb files, you have to re-run ./buildtarget to recreate the make
files with the new values.

If I understand it right, this is pretty much how it works, and some
reasonable values for a 256k flash part:

ROM_IMAGE_SIZE determines the amount of space for lb's fallback image to
take up, 64kb (64*1024, or 0x10000). The minimum size of this is
dependent on the code, I don't know how you'd find it out other than
trial-and-error, but there must be a way.

FALLBACK_SIZE determines the space for the fallback lb image + the
payload for the "fallback.rom", 128kb (128*1024, or 0x20000). This means
64kb for lb+64kb for the payload. This at minimum needs to be
(obviously) the size of your built code + the size of your payload.
Also, make sure your Options.lb contains "default HAVE_FALLBACK_BOOT=1".

ROM_IMAGE_SIZE again determines the size for the normal image's code, 64kb

ROM_SIZE determines the size of the whole chip, 256kb. LB then computes
ROM_SIZE - FALLBACK_SIZE to get the size for the "normal.rom", which is
the normal lb code + the payload again.

At the end, lb merges the fallback.rom(128k) and normal.rom (128k) to
give you linuxbios.rom (256k).

There are some other options, like PAYLOAD_SIZE and ROM_SECTION_SIZE,
these should be computed by your src/../Config.lb based on the other
values. If you still have problems, grab the config.lb's and options.lb
from the asus p2b and use the values in those, they build a 256k flash
part for me just fine.

-Corey