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Re: Flash detection
- From: Gary Thomas <gary at mlbassoc dot com>
- To: "M.Eugenia G.Valdecasas" <valdecasas at isar-tec dot com>
- Cc: ecos-discuss at sources dot redhat dot com
- Date: 10 Nov 2003 08:20:47 -0700
- Subject: Re: [ECOS] Flash detection
- Organization: MLB Associates
- References: <20031110142953.GG317@kavik.isar-tec.com>
On Mon, 2003-11-10 at 07:29, M.Eugenia G.Valdecasas wrote:
> Hi, I recompiled redboot to use in our board. It has a PXA255 processor
> with 2x16 Intel 28F128J3 Flash. I use the strata flash drivers from
> intel.
> I upload redboot to the board with the JTAG tools but on starting comes
> an error message:
>
>
> +Can't identify FLASH, sorry, man e, dev 1e, id [<Not a string:
> 0xA000CAFC>] stat 0
> A000CAEC: 0E 1E B0 AB 0E 1E C0 AB 0E 1E D0 AB 0E 1E E0 AB
> |................|
> A000CAFC: 0E 1E F0 AB 00 00 00 00 00 00 00 00 00 00 00 00
> |................|
> A000CB0C: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> |................|
> A000CB1C: 00 00 00 00
> |.... |
> FLASH: driver init failed: Unknown error
>
> I tried the possible solutions named on the mailing list, like in
> strata.c change the line "if ( (qp->manuf_code == FLASH_Intel_code)"
> for "if(1 ", to define CYGHWR_IO_FLASH_DEVICE_NOT_IN_RAM and to change
> the CNT into a higher value. But I still get the same error and it does
> not go on.
>
> Have anybody any ideas what is it happening?. I would really appreciate
> any help. Thank you in advance,
The driver could not get your device to go into "identify" mode.
This can happen for many reasons:
* FLASH is write protected (the "write" signal is not allowed)
* You've configured the driver incorrectly. You say that you have
2x16 FLASH - what does that mean [to you]? Show us your
configuration lines from the driver include files.
Note: the iPAQ flash is 2 devices organized in parallel to form a
32 bit path. It might be a good place to look for assistance.
--
Gary Thomas <gary@mlbassoc.com>
MLB Associates
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