[U-Boot] [PATCHv2 CFI flash]: Workaround for Numonyx Axcell?P33/P30 256-Mbit 65nm bug

[Philippe De Muyter]

On Tue, Aug 10, 2010 at 05:28:59PM +0200, Stefan Roese wrote:
> Hi Philippe,
> 
> one more thing:
> 
> On Monday 09 August 2010 17:46:03 Philippe De Muyter wrote:
> > Here is the excerpt from the errata :
> > 
> > Workaround:  If the interval between 60h and its subsequent command
> > 	     can be guaranteed within 20μs, Option I is recommended,
> > 	     otherwise Option II (involves hardware) should be selected.
> > Option I: The table below lists the detail command sequences:
> > Command
> > 	      Data bus           Address bus       Remarks
> > Sequence
> >   1              90h            Block Address
> > 						   Read Lock Status
> >   2             Read         Block Address + 02h
> >  (2)(3)                                      (1)
> > 3                60h           Block Address
> >  (2)(3)                                      (1)   Lock/Unlock/RCR
> > Configuration 4           D0h/01h/03h        Block Address
> > Notes:
> > (1) Block Address refers to RCR configuration data only when the 60h
> >     command sequence is used to set RCR register combined with 03h
> >     subsequent command.
> > (2) For the third and fourth command sequences, the Block Address must
> >     be the same.
> > (3) The interval between 60h command and its subsequent D0h/01h/2Fh/03h
> >     commands should be less than 20μs.
> 
> Please add this workaround text from the errata to the commit text in your 
> next patch version. This makes things easier - no need to search for the 
> errata.

OK

Philippe