[U-Boot] FLASH write bug on NGW100

[Ben Nizette <bn@niasdigital.com>]

?
<reconstructing thread and cc'ing u-boot list; please don't
top-post :-)>

> > > when using the latest u-boot version from
> > > git://www.denx.de/git/u-boot-avr32.git, it is not possible for me to
> > > write (I have tried saveenv and protect) to NOR FLASH anymore.
> > >
> > > U-Boot gives the following error: "start or end address not on sector
> > > boundary"
> > >
> > > Is this a known problem?
> > >
> > > Gerhard
> > >
> >
> > Post the exact commands you are using. Probably you are using wrong
> > addresses
> >
> 
> The exact command:
> 
> ?U-Boot> saveenv
> Saving Environment to Flash...
> Error: start and/or end address not on sector boundary
> 
> Seriously, it's that easy.  The addresses are the default ones found in
> include/configs/atngw100.h since the dawn of time :-)
> 
>       --Ben.
?
> On Wed, 2009-05-20 at 13:08 +0200, Eirik Aanonsen wrote:

> ?I dont have tha board. What result do you get if you run: Flinfo ( post it back here )

On Wed, 2009-05-20 at 15:54 +0200, Gerhard Berghofer wrote:
> Hi Eirik,
> 
> flinfo with u-boot version >= 2009.03 gives the following output:
> 
> ######################################################################
> Bank # 1: CFI conformant FLASH (16 x 16)  Size: 8 MB in 135 Sectors
>   AMD Standard command set, Manufacturer ID: 0x1F, Device ID: 0x1D6
>   Erase timeout: 8192 ms, write timeout: 1 ms
>   Buffer write timeout: 1 ms, buffer size: 4 bytes
> 
>   Sector Start Addresses:
>   A0000000        A0002000        A0004000        A0006000       A0008000     
>   A000A000        A000C000        A000E000        A0010000       A0020000     
>   A0030000        A0040000        A0050000        A0060000       A0070000     

...
> 
> flinfo with u-boot version 2008.10 gives the following output:
> 
> ######################################################################
> Bank # 1: CFI conformant FLASH (16 x 16)  Size: 8 MB in 135 Sectors
>   AMD Standard command set, Manufacturer ID: 0x1F, Device ID: 0x1D6
>   Erase timeout: 8192 ms, write timeout: 1 ms
>   Buffer write timeout: 1 ms, buffer size: 4 bytes
> 
>   Sector Start Addresses:
>   00000000   RO   00002000   RO   00004000   RO   00006000   RO   00008000   RO
>   0000A000   RO   0000C000   RO   0000E000   RO   00010000   RO   00020000     
>   00030000        00040000        00050000        00060000        00070000     
...

> ?the FLASH seems to be attached to a wrong address range ...

Well on the AVR32 both addresses are correct - the first accessed the
flash through the uncached, untranslatable segment, now it's both cached
and translated but that should only be a win.  I guess though that the
environment address (which in the config is set to 007F0000) is still
somehow somewhere being translated to A07F0000 then breaking all the
flash range checking.

But I'm kinda guessing here, I hope someone on the u-boot list can tell
us it's known and fixed and we should be have scoured their archives
harder ;-)

	--Ben.