Re: [LinuxBIOS] EPIA-MII 12000, almost there. ( newbie )

[Richard Smith]

> system does not handle this correctly.  It expects there to be falback
> and normal images.
> So you have to trick it to make it work right.

The trick is to set FALLBACK_SIZE=ROM_SIZE

The default config has it set to 0x30000.  I suspect it was set that
way to allow for the addition of the VGA bios that can't be included
in the default distribution.

I tested and for me this builds a 256k image that has the reset vector
in the right spot.    I don't have any epia hardware so I can't test
that it actually still boots though.

[LinuxBIOS] EPIA-MII 12000, almost there. ( newbie )

[Richard Smith]

On 6/18/06, Richard Smith  wrote:
> > system does not handle this correctly.  It expects there to be falback
> > and normal images.
> > So you have to trick it to make it work right.
>
> The trick is to set FALLBACK_SIZE=ROM_SIZE

Looks like you need to comment out the following lines in the config as well
or I think the addresses of the various entry points will be wrong.

option ROM_SECTION_OFFSET=0x10000
        option ROM_SECTION_SIZE=0x30000

[LinuxBIOS] EPIA-MII 12000, almost there. ( newbie )

[Per Mellander]

On Sun, 18 Jun 2006 16:23:53 -0500, Richard Smith wrote
> On 6/18/06, Richard Smith  wrote:
> > > system does not handle this correctly.  It expects there to be falback
> > > and normal images.
> > > So you have to trick it to make it work right.
> >
> > The trick is to set FALLBACK_SIZE=ROM_SIZE
>
> Looks like you need to comment out the following lines in the config as well
> or I think the addresses of the various entry points will be wrong.
>     option ROM_SECTION_OFFSET=0x10000
>     option ROM_SECTION_SIZE=0x30000

Don't know if I missed something, but this Config.lb
gives the same reboots after kernel has been loaded :(

/Per

----8<---------------------------------------------------

# Sample config file for EPIA-M
# This will make a target directory of ./epia-m

target epia-m

mainboard via/epia-m

option  MAXIMUM_CONSOLE_LOGLEVEL=8
option  DEFAULT_CONSOLE_LOGLEVEL=8
option  CONFIG_CONSOLE_SERIAL8250=1

option ROM_SIZE=256*1024
option HAVE_OPTION_TABLE=1
option CONFIG_ROM_STREAM=1
option HAVE_FALLBACK_BOOT=1

###
### Compute the location and size of where this firmware image
### (linuxBIOS plus bootloader) will live in the boot rom chip.
###
option FALLBACK_SIZE=0x30000

## LinuxBIOS C code runs at this location in RAM
option _RAMBASE=0x00004000

#
###
### Compute the start location and size size of
### The linuxBIOS bootloader.
###

#
# EPIA-M
#
#romimage "normal"
#       option USE_FALLBACK_IMAGE=0
#       option ROM_IMAGE_SIZE=0xc000
#       option ROM_SECTION_OFFSET=0x10000
#       option ROM_SECTION_SIZE=0x18000
#       option XIP_ROM_BASE=0xfffd0000
#       option LINUXBIOS_EXTRA_VERSION=".0Normal"
#       payload /usr/share/etherboot/5.1.9pre2-lnxi-lb/tg3--ide_disk.zelf
#       payload ../../../../tg3--ide_disk.zelf
#       payload ../../../../../lnxieepro100.ebi
#       payload /filo.elf
#end

romimage "fallback"
        option FALLBACK_SIZE=ROM_SIZE
        option USE_FALLBACK_IMAGE=1
        option ROM_IMAGE_SIZE=0x10000
#       option ROM_SECTION_OFFSET=0x10000
#       option ROM_SECTION_SIZE=0x30000
#       option XIP_ROM_BASE=0xfffe0000
        option LINUXBIOS_EXTRA_VERSION=".0Fallback"
#       payload /usr/share/etherboot/5.1.9pre2-lnxi-lb/tg3--ide_disk.zelf
#       payload ../../../../tg3--ide_disk.zelf
#       payload ../../../../../lnxieepro100.ebi
        payload /filo.elf
#       payload /memtest
end

buildrom ./linuxbios.rom ROM_SIZE  "fallback"

----8<---------------------------------------------------

[LinuxBIOS] EPIA-MII 12000, almost there. ( newbie )

[Richard Smith]

> Don't know if I missed something, but this Config.lb
> gives the same reboots after kernel has been loaded :(

All I was trying to solve was your incorrect build size.   If it boots
at all then my suggestion worked. *grin*