On 04/04/2008, Corey Osgood <corey.osgood@gmail.com> wrote:

what's the output of diff -us original.bin sst_after_write.bin? Can you download the bios from the manufacturer and see if flashing that works?

-Corey

On Fri, Apr 4, 2008 at 7:03 AM, malatesh kamatad <malateshkamat@gmail.com> wrote:

   I worked with the step by step this is the output......

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

Calibrating delay loop... OK.
No coreboot table found.
Found chipset "VIA VT8237", enabling flash write... OK.
Pm49FL004 found at physical address 0xfff80000.
Flash part is Pm49FL004 (512 KB).
Reading Flash...done

[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

[root@localhost ~]# flashrom -r sst_after_erase.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 original.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 -r sst_after_write.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

Thanks,
Malatesh.

On 04/04/2008, malatesh kamatad <malateshkamat@gmail.com> wrote:
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 <bari@onelabs.com> 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* <bari@onelabs.com <mailto:bari@onelabs.com>> 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

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