TQM823L flash recognition problem

U-Boot-Users Thomas Maenner 3 participants 4 messages Jun 27, 2008 – Jul 6, 2008

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Thomas Maenner

author

2008-06-27 22:08 UTC #0 lore raw

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

Signature · 4 lines

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

Jens Gehrlein

2008-06-30 11:03 UTC #1 lore raw

Hi Thomas,

Quoted 25 lines · 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.

Quoted 6 lines

- 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

Thomas Maenner

author

2008-06-30 16:39 UTC #2 lore raw

Thanks much Jens!!!

That did the trick - works fine so far!

Cheers
Tom

Quoted 49 lines · On Monday 30 June 2008 04:03:30 Jens Gehrlein wrote:

Hi Thomas,
Quoted 25 lines · 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.
Quoted 6 lines
- 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:
(quoted diff) +1 -1
-#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

Signature · 4 lines

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

Wolfgang Denk

2008-07-06 22:14 UTC #3 lore raw

In reply to Jens Gehrlein

Quoted 6 lines · In message <[email protected]> Jens Gehrlein wrote:

Could you please change TQM823L.h:
(quoted diff) +1 -1
-#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.

Quoted 3 lines

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.