Re: [coreboot] Flashing problem with SST49LF004B

[malatesh kamatad]

Hi..

We are having two BIOS i.e, PM49FL004( motherboard's BIOS) and
empty flashrom

SST49LF004B ..

We are trying to flash the content of PM49FL004 to SST49LF004B
flashrom

according to your suggestion we have done ..we are getting output
as bellow..

[root@localhost ~]# flashrom -E

Calibrating delay loop... OK.

No coreboot table found.

Found chipset "VIA VT8237", enabling flash write... OK.

SST49LF004A/B found at physical address 0xfff80000.

Flash part is SST49LF004A/B (512 KB).

Erasing flash chip

Erasing page: 0007 at address: 0x00070000

[root@localhost ~]# flashrom -r malateh.bin

Calibrating delay loop... OK.

No coreboot table found.

Found chipset "VIA VT8237", enabling flash write... OK.

SST49LF004A/B found at physical address 0xfff80000.

Flash part is SST49LF004A/B (512 KB).

Reading Flash...done

[root@localhost ~]# flashrom -w malateh.bin

Calibrating delay loop... OK.

No coreboot table found.

Found chipset "VIA VT8237", enabling flash write... OK.

SST49LF004A/B found at physical address 0xfff80000.

Flash part is SST49LF004A/B (512 KB).

Flash image seems to be a legacy BIOS. Disabling checks.

Programming page: 0007 at address: 0x00070000

[root@localhost ~]# flashrom -v malateh.bin

Calibrating delay loop... OK.

No coreboot table found.

Found chipset "VIA VT8237", enabling flash write... OK.

SST49LF004A/B found at physical address 0xfff80000.

Flash part is SST49LF004A/B (512 KB).

Flash image seems to be a legacy BIOS. Disabling checks.

Verifying flash... VERIFIED.

After that we tried to boot the system by SST49lf004B but system is not
rebooting....

So we want to flash the content of the Pm49fl004 to SST49lf004 so that our
system can boot

using SST49lf004....

thanks,
Malatesh..

On 04/04/2008, bari  wrote:
> Try Peters suggestion of reading the flash after an erase and see what is
> there.
>
> If it is erased, read back after you have tried to write and compare.
>
> See what is or is not happening.
>
> -Bari
>
> malatesh kamatad wrote:
> > Hi...
> >       I am working on ASRock motherboard .....in FWH mode...
> >
> > with regards.
> > Malatesh
> >
> > On 03/04/2008, *bari* <[e-mail] >
> > wrote:
> >
> > malatesh kamatad wrote:
> >    Hi all..
> >          I have worked with PM49fl00x.diff patch ,its worked fine
> >    and i got the output as below
> >
> > The PM49fl00x can work in LPC and FWH modes. Do you know which
> >    mode is being used?
> >    What mainboard did you test this in?
> >                       Now i am working on SST49LF004B
> >                        33-4C-NHE
> >                                      0710022-CA   with the
> >     motherboard  K8Upgrade-VM800
> >                     The flashrom detect flash device on this
> >    board, But the erasing and writting operation is not happening
> >    properly
> >      hier flashrom output :
> >
> > Is this the board by ASRock?
> >
> > -Bari