[Help] SST39VF6401B Support

[yidong zhang]

hi
   The 39VF*-B-Version flashes in the cfi_nopri_fixup_table don't work
well in the current code.  Because of the mistaken use of
command(0x30) in the 6th bus cycle, which should be 0x50. I think the
39VF*-B-Version flashes should be removed form the CFI probe mode. Or
maybe the erase operation should be changed for the Compatibility.

On Sat, Oct 16, 2010 at 9:17 PM, Wolfram Sang <w.sang at pengutronix.de> wrote:
> On Sat, Oct 16, 2010 at 08:25:44PM +0800, yidong zhang wrote:
>> Hi
>>   Thanks for your reply. In the cfi_nopri_fixup_table, i added the
>> below code as you did.
>> { CFI_MFR_SST, 0x236D, fixup_sst39vf_rev_b, NULL, }, // SST39VF6401B
>
> OK, please just use C-style comments (I just sent another patch
> converting the others). Also, would be nice if you could check the
> datasheet for other IDs mentioned there and add them, too.
>
>> And the flash can get detected. But i still have one confusion.
>> According to the  data sheets Table 6, in the 6th bus write cycle.
>> 39VF6401B uses 0x50 and 39VF6401 uses 0x30. If 39VF6401B uses 0x30 in
>
> Ouch! Is this true for the other 39VF*-non-B and B-versions, too?
>
> Adding Guillaume to CC...
>
> Regards,
>
>   Wolfram
>
> --
> Pengutronix e.K.                           | Wolfram Sang                |
> Industrial Linux Solutions                 | http://www.pengutronix.de/  |
>
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