[flashrom] Re: Reg:libmtd: error!: MEMERASE64 ioctl failed for eraseblocks (mtd0)

[S.]

Hello,
I have found the following page: http://www.linux-mtd.infradead.org/ but 
I don't know more abaout it
Stephan

Am 13.12.24 um 13:44 schrieb Anastasia Klimchuk:
> Thank you Stephan!
>
> I don't know about that tool. Maybe they have a mailing list?
> It is possible the area is write-protected, but it's only a guess.
>
> flashrom has an entry for Elkhart Lake:
> https://github.com/flashrom/flashrom/blob/main/chipset_enable.c#L2172
>
> On Thu, Dec 12, 2024 at 11:38 PM S.  wrote:
> > Hello,
> > *flash_erase* is a tool in the package *mtd-utils*
> > Stephan
> >
> > Am 12.12.24 um 13:28 schrieb Anastasia Klimchuk:
> > > Hello Arvind,
> > >
> > > My question is, which tool are you running? This doesn't look like flashrom.
> > > We don't have `flash_erase` command, and no `mtd_erase_multi` function.
> > > And I don't recognise the printed messages.
> > >
> > > On Thu, Dec 12, 2024 at 9:01 PM Arvind GP via flashrom
> > > <[e-mail] > wrote:
> > >  Hi All,
> > >  We are trying to implement the flashrom tool utility on the x86
> > >  *Elkhart Lake*(LEC-EL) platform. In this case, we are facing an
> > >  issue when trying to erase the BIOS device MTD0. There are 4096
> > >  erase blocks available in the mtd0 device, but only 1791 erase
> > >  blocks we can erase; the remaining blocks are throwing errors, and
> > >  it shows MEMERASE64 IOCTL FAILED. Please see the below error message
> > >  and MTD0 device info for your reference.
> > >  NOTE: Sometimes it works; we can erase the MTD0 device without any
> > >  error, and we can upgrade/downgrade the BIOS.
> > >  *_ERROR MESSAGAE:_*
> > >  #sudo flash_erase /dev/mtd0 0 0
> > >  Erasing 16384 Kibyte @ 0 --  0 % complete libmtd: error!: MEMERASE64
> > >  ioctl failed for eraseblock 0 (mtd0)
> > >           error 524 (Unknown error 524)
> > >  flash_erase: error!: Entering into mtd_erase_multi
> > >  flash_erase: error!: /dev/mtd0: MTD Erase entire chip failureTrying
> > >  one by one each sector.
> > >                error 524 (Unknown error 524)
> > >  Erasing 4 Kibyte @ 700000 -- 43 % complete libmtd: error!:
> > >  MEMERASE64 ioctl failed for eraseblock 1792 (mtd0)
> > >           error 5 (Input/output error)
> > >  flash_erase: error!: /dev/mtd0: MTD Erase failure
> > >                error 5 (Input/output error)
> > >  Erasing 4 Kibyte @ 700000 -- 43 % complete cnt 4096
> > >
> > >  *_MTD0 INFO:(sudo mtdinfo /dev/mtd0)_*
> > >  Name:
> > >
> > >  BIOS
> > >  Туре:
> > >  nor
> > >  Eraseblock size:
> > >  4096 bytes, 4.0 KiB
> > >  Amount of eraseblocks:
> > >  4096 (16777216 bytes, 16.0 MB)
> > >  Minimum input/output unit size:
> > >  1 byte
> > >  Sub-page size:
> > >  1 byte
> > >  Character device major/minor:
> > >  90:0
> > >  Bad blocks are allowed:
> > >  false
> > >  Device is writable:
> > >  true
> > >
> > >  Please share your inputs on this.
> > >  Thanks & Regards,
> > >  Arvind G P.
> > >
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> > >
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