Re: [coreboot] Flashing problem with SST49LF004B

[malatesh kamatad]

Hello,
  But the content after writing by using  below command shows result like
this....

[root@localhost ~]# /usr/local/sbin/flashrom -r | hexdump

0000000 6143 696c 7262 7461 6e69 2067 6564 616c
0000010 2079 6f6c 706f 2e2e 202e 4b4f 0a2e 6f4e
0000020 6320 726f 6265 6f6f 2074 6174 6c62 2065
0000030 6f66 6e75 2e64 460a 756f 646e 6320 6968
0000040 7370 7465 2220 4956 2041 5456 3238 3733
0000050 2c22 6520 616e 6c62 6e69 2067 6c66 7361
0000060 2068 7277 7469 2e65 2e2e 4f20 2e4b 530a
0000070 5453 3934 464c 3030 4134 422f 6620 756f
0000080 646e 6120 2074 6870 7379 6369 6c61 6120
0000090 6464 6572 7373 3020 6678 6666 3038 3030
00000a0 2e30 460a 616c 6873 7020 7261 2074 7369
00000b0 5320 5453 3934 464c 3030 4134 422f 2820
00000c0 3135 2032 424b 2e29 450a 7272 726f 203a
00000d0 6f4e 6620 6c69 6e65 6d61 2065 7073 6365
00000e0 6669 6569 2e64 000a
00000e7

************************************
  But using only hexdump i got result like this ...

[root@localhost ~]# hexdump sst_after_write05.bin
0000000 ffff ffff ffff ffff ffff ffff ffff ffff
*
0080000

Thanks.
Malatesh

On 04/04/2008, malatesh kamatad  wrote:
> Ya .. after checking that file i got result like this ...it shows that
> there is a content in that file
>
> [root@localhost ~]# hexdump sst_after_erase.bin
> 0000000 ffff ffff ffff ffff ffff ffff ffff ffff
>
> 0080000
>
> I think erasing is not happened properly..
>
> Thanks..
> malatesh
>
> On 04/04/2008, Corey Osgood  wrote:
> > Ok, so if you open up the sst_after_erase.bin with a hex editor, is
> > there anything in it? Does that match the data from the diff, or is it a
> > binary ORing of the data from the diff? Do you have any other flash chips
> > you can try on the board?
> >
> > On Fri, Apr 4, 2008 at 8:41 AM, malatesh kamatad <
> > [e-mail]> wrote:
> > > Ya i got result like this after comparing
> > >
> > > [root@localhost ~]# diff -us original.bin sst_after_write.bin
> > > Binary files original.bin and sst_after_write.bin differ
> > >
> > > but its showing that there is a difference in between to files ....
> > >
> > > i think write is not happening proper ....
> > >
> > > Thanks .
> > > malatesh
> > >
> > > On 04/04/2008, Corey Osgood  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 <
> > > > [e-mail]> 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  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  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]  > [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
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > >