[ECOS] FLASH id

[ECOS] FLASH id

[Carles Perello]

Hi,

on my way digging ro make a new platform (based on SA1110) work, I find
the following flash ID error:

RedBoot> +Can't identify FLASH, sorry, man 89, dev 17, id [<Not astring:
0xA700
0000A6F0: 89 17 00 00 00 00 00 00  00 00 00 00 00 00 00 00
|................|
0000A700: 51 52 01 01 00 31 00 00  00 00 27 27 36 00 07 07
|QR...1....''6...|
0000A710: 07 0A 04 04 04 04 17 17  02 00 00 00 01 3F 00 00
|.............?..|
0000A720: 02 50 49 49                           |.PII            |

the flash is an intel strataflash 28F640J3 organized as two devices x16.

At offset x10 there is a QR string instead of the expected
QRY...somebody else found a similar behaviour? 

Of course I can detect only the QR string which makes the flash to be
correctly recognized, however I find programming errors later...so I am
backtracing the source of trouble.

cheers

carles




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Re: [ECOS] FLASH id

[Gary Thomas]

On Mon, 2002-06-10 at 04:38, Carles Perello wrote:
> 
> Hi,
> 
> on my way digging ro make a new platform (based on SA1110) work, I find
> the following flash ID error:
> 
> RedBoot> +Can't identify FLASH, sorry, man 89, dev 17, id [<Not astring:
> 0xA700
> 0000A6F0: 89 17 00 00 00 00 00 00  00 00 00 00 00 00 00 00
> |................|
> 0000A700: 51 52 01 01 00 31 00 00  00 00 27 27 36 00 07 07
> |QR...1....''6...|
> 0000A710: 07 0A 04 04 04 04 17 17  02 00 00 00 01 3F 00 00
> |.............?..|
> 0000A720: 02 50 49 49                           |.PII            |
> 
> the flash is an intel strataflash 28F640J3 organized as two devices x16.
> 

This device/layout should "just work", as it's identical to what's used 
on the Intel Assabet platform.  Is that what you started from?

Make sure that you have the FLASH layout correct, etc.

> At offset x10 there is a QR string instead of the expected
> QRY...somebody else found a similar behaviour? 
> 
> Of course I can detect only the QR string which makes the flash to be
> correctly recognized, however I find programming errors later...so I am
> backtracing the source of trouble.

Until you get the layout correct, all bets are off :-(


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Re: [ECOS] FLASH id

[Carles Perello]

On Mon, 2002-06-10 at 14:30, Gary Thomas wrote:

> This device/layout should "just work", as it's identical to what's used 
> on the Intel Assabet platform.  Is that what you started from?
 
Yup!


> Make sure that you have the FLASH layout correct, etc.

Only difference I see is that I use half the size..so address line A24
is not used.

I am checking plf_mmap.h which has the virtual-physical address
translations..hummm

cheers

carles


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