[U-Boot-Users] TQM823L flash recognition problem

[U-Boot-Users] TQM823L flash recognition problem

[Thomas Maenner]

Hi Everybody,

trying to use the u-boot V1.3.3 on a TQ Module:
TQM823L-AF Rev.311

which had u-boot v1.1.4 running without a problem, I now get this on two 
modules:
--------------------
U-Boot 1.3.3 (Jun 27 2008 - 14:45:35)

CPU:   PPC823EZTnnB2 at 50 MHz: 16 kB I-Cache 8 kB D-Cache
Board: TQM823LDB0A3-E50I.311
DRAM:  16 MB
FLASH: ## Unknown FLASH on Bank 2 - Size = 0x00000000 = 0 MB
 4 MB
In:    serial
Out:   serial
Err:   serial
Net:   SCC ETHERNET
PCMCIA:   No Card found
-------------------

The module has four AMD L160DB90VI onboard.
Compiled u-boot after "make TQM823L_config" without modifications.

- Anything I'm missing here?
- Was this answered before?

Thanks much for your help to point me in the right direction.

Tom
-- 
Linux hackers are funny people: They count the time in patchlevels
--
Thomas Maenner
E-Mail: mailto:tmaenner at aehr.com

[U-Boot-Users] TQM823L flash recognition problem

[Jens Gehrlein]

Hi Thomas,

Thomas Maenner schrieb:
> Hi Everybody,
> 
> trying to use the u-boot V1.3.3 on a TQ Module:
> TQM823L-AF Rev.311
> 
> which had u-boot v1.1.4 running without a problem, I now get this on two 
> modules:
> --------------------
> U-Boot 1.3.3 (Jun 27 2008 - 14:45:35)
> 
> CPU:   PPC823EZTnnB2 at 50 MHz: 16 kB I-Cache 8 kB D-Cache
> Board: TQM823LDB0A3-E50I.311
> DRAM:  16 MB
> FLASH: ## Unknown FLASH on Bank 2 - Size = 0x00000000 = 0 MB
>  4 MB
> In:    serial
> Out:   serial
> Err:   serial
> Net:   SCC ETHERNET
> PCMCIA:   No Card found
> -------------------
> 
> The module has four AMD L160DB90VI onboard.
> Compiled u-boot after "make TQM823L_config" without modifications.
> 
> - Anything I'm missing here?
> - Was this answered before?
> 
> Thanks much for your help to point me in the right direction.
> 
> Tom

Could you please change TQM823L.h:

-#define CFG_FLASH_BANKS_LIST   { CFG_FLASH_BASE }
+#define CFG_FLASH_BANKS_LIST   { CFG_FLASH_BASE, CFG_FLASH_BASE + 
0x400000 }

and try again?

There was a switch-over to use the CFI driver (see git history of file 
TQM823L.h). AFAIK the CFI driver needs a list with fix start addresses 
of each bank to start the CFI query on.

Best Regards,
Jens

[U-Boot-Users] [BULK] Re: TQM823L flash recognition problem

[Thomas Maenner]

Thanks much Jens!!!

That did the trick - works fine so far!

Cheers
Tom

On Monday 30 June 2008 04:03:30 Jens Gehrlein wrote:
> Hi Thomas,
>
> Thomas Maenner schrieb:
> > Hi Everybody,
> >
> > trying to use the u-boot V1.3.3 on a TQ Module:
> > TQM823L-AF Rev.311
> >
> > which had u-boot v1.1.4 running without a problem, I now get this on two
> > modules:
> > --------------------
> > U-Boot 1.3.3 (Jun 27 2008 - 14:45:35)
> >
> > CPU:   PPC823EZTnnB2 at 50 MHz: 16 kB I-Cache 8 kB D-Cache
> > Board: TQM823LDB0A3-E50I.311
> > DRAM:  16 MB
> > FLASH: ## Unknown FLASH on Bank 2 - Size = 0x00000000 = 0 MB
> >  4 MB
> > In:    serial
> > Out:   serial
> > Err:   serial
> > Net:   SCC ETHERNET
> > PCMCIA:   No Card found
> > -------------------
> >
> > The module has four AMD L160DB90VI onboard.
> > Compiled u-boot after "make TQM823L_config" without modifications.
> >
> > - Anything I'm missing here?
> > - Was this answered before?
> >
> > Thanks much for your help to point me in the right direction.
> >
> > Tom
>
> Could you please change TQM823L.h:
>
> -#define CFG_FLASH_BANKS_LIST   { CFG_FLASH_BASE }
> +#define CFG_FLASH_BANKS_LIST   { CFG_FLASH_BASE, CFG_FLASH_BASE +
> 0x400000 }
>
> and try again?
>
> There was a switch-over to use the CFI driver (see git history of file
> TQM823L.h). AFAIK the CFI driver needs a list with fix start addresses
> of each bank to start the CFI query on.
>
> Best Regards,
> Jens


-- 
Linux hackers are funny people: They count the time in patchlevels
--
Thomas Maenner
E-Mail: mailto:tmaenner at aehr.com

[U-Boot-Users] TQM823L flash recognition problem

[Wolfgang Denk]

In message <4868BD82.20407@tqs.de> Jens Gehrlein wrote:
> 
> Could you please change TQM823L.h:
> 
> -#define CFG_FLASH_BANKS_LIST   { CFG_FLASH_BASE }
> +#define CFG_FLASH_BANKS_LIST   { CFG_FLASH_BASE, CFG_FLASH_BASE + 
> 0x400000 }

Note that a proper patch (and without line wrapping) would have  been
much more useful.

> There was a switch-over to use the CFI driver (see git history of file 
> TQM823L.h). AFAIK the CFI driver needs a list with fix start addresses 
> of each bank to start the CFI query on.

Thanks for pointing this out.


The big disadvantage of above code is that it requires a static
mapping of the second flash bank, i. e. it works only correctly for
fixed flash sizes. This may be not a big problem for the boards in
question here, but we use autoconfiguration everywhere else so this
doesn't fit in style.

The following patch tries to fix this in a more general way,  but  it
requires slight modification of the CFI driver to support this.