[coreboot] Flashing problem on the SST49LF004B

[Lalitha V.N.]

Hi......

 we have tried these steps but now we got the same result as  what we got in
the previous steps....

and these are the steps we followed ......


[root at turtle10 ~]# /usr/sbin/flashrom -E
Calibrating delay loop... OK.
No LinuxBIOS table found.
Found chipset "VT8237", enabling flash write... OK.
SST49LF004A/B found at physical address 0xfff80000.
Flash part is SST49LF004A/B (512 KB).
Erasing flash chip

[root at turtle10 ~]# dd if=/dev/zero of=zero.bin bs=1024 count=512
512+0 records in
512+0 records out
524288 bytes (524 kB) copied, 0.00345299 s, 152 MB/s

[root at turtle10 ~]# /usr/sbin/flashrom -v zero.bin
Calibrating delay loop... OK.
No LinuxBIOS table found.
Found chipset "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... FAILED!

with regards,
Lalitha.

On Feb 6, 2008 2:08 PM, Corey Osgood <corey.osgood at gmail.com> wrote:

> Please try this:
>
> flashrom -E
> dd if=/dev/zero of=zero.bin bs=1024 count=512
> flashrom -v zero.bin
>
> This should tell if the erase or write is where the problem is. Probably
> the write, but better to know for sure. Also, please do a "reply all" to
> your mailing's last response on the list, it helps to keep threads
> organized.
>
> -Corey
>
> On Feb 6, 2008 2:52 AM, Lalitha V.N. <vn.lalitha at gmail.com> wrote:
>
> > Hi......
> >
> > Thanks for your reply........
> >
> > We have tried like this,we have copied original BIOS(PM49FL004) content
> > in the filename feb6 and tried to flash on
> >
> > SST49LF004B flashrom chip  and then we followed this steps .....
> >
> > root at turtle10 ~]# /usr/sbin/flashrom -E
> >
> > Calibrating delay loop... OK.
> >
> > No LinuxBIOS table found.
> >
> > Found chipset "VT8237", enabling flash write... OK.
> >
> > SST49LF004A/B found at physical address 0xfff80000.
> >
> > Flash part is SST49LF004A/B (512 KB).
> >
> > Erasing flash chip
> >
> >
> >  [root at turtle10 ~]# /usr/sbin/flashrom -w feb6
> >
> > Calibrating delay loop... OK.
> >
> > No LinuxBIOS table found.
> >
> > Found chipset "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 at turtle10 ~]# /usr/sbin/flashrom -v feb6
> >
> > Calibrating delay loop... OK.
> >
> > No LinuxBIOS table found.
> >
> > Found chipset "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... FAILED!
> >
> > Still  we are unable to flash , please guide us  which procedure should
> > follow and is it necessary
> >
> > for us to change the flashrom chip? otherwise is it required to change
> > the code in flashrom utility....?
> >
> > if it is require please guide where we need to change.. such that flash
> > can happen..
> >
> >
> > with regards,
> > Lalitha.
> >
> >
> > --
> > coreboot mailing list
> > coreboot at coreboot.org
> > http://www.coreboot.org/mailman/listinfo/coreboot
> >
>
>
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