[ECOS] Flash detection

[ECOS] Flash detection

[M.Eugenia G.Valdecasas]

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,


Dipl. Ing. M.Eugenia G.Valdecasas
_________________________________

Isar-Tec
Software - Digital Systems
Plannegerstr. 32
D-81241 München

Email: valdecasas@isar-tec.com
Web: www.isar-tec.com

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Re: [ECOS] Flash detection

[Gary Thomas]

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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Re: [ECOS] Flash detection

[M.Eugenia G.Valdecasas]

> 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)

The write signal is allowed, actually the flash enters the query mode 
and read ID mode succesfully. We have traced it with a logic state 
analyzer. we can see all this data string : 0x00890089, 0x00180018, 
0x00510051 and blah blah blah....
I can't understand why all the information is in the bus (apparently 
succesfull read query and ID process) but the driver is still saying 
that can't not recognise the device...


>   * 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.
> 

Sorry, I didn't express it correctly... what I meant is that we have 
two devices in parallel to form a 32 bit path 

The configuration lines are:

in altair_strataflash.inl->

#define CYGNUM_FLASH_DEVICES     (2)
#define CYGNUM_FLASH_BASE        (0x00000000u)
#define CYGNUM_FLASH_BASE_MASK   (0xFE000000u) // 2 * 16Mb devices
#define CYGNUM_FLASH_WIDTH       (16)
#define CYGNUM_FLASH_BLANK       (1)

#define FLASH_P2V(x) ((volatile flash_t *)(((unsigned)(x) < 0x1000) ? \
                             ((unsigned)(x) | 0xa0000000) : \
                             (unsigned)(x)))






> 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



On 2003.11.10 16:20, Gary Thomas wrote:
> 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,
> 
> 
> 

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Re: [ECOS] Flash detection

[Gary Thomas]

On Mon, 2003-11-10 at 10:01, M.Eugenia G.Valdecasas wrote:
> > 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)
> 
> The write signal is allowed, actually the flash enters the query mode 
> and read ID mode succesfully. We have traced it with a logic state 
> analyzer. we can see all this data string : 0x00890089, 0x00180018, 
> 0x00510051 and blah blah blah....
> I can't understand why all the information is in the bus (apparently 
> succesfull read query and ID process) but the driver is still saying 
> that can't not recognise the device...
> 
> 
> >   * 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.
> > 
> 
> Sorry, I didn't express it correctly... what I meant is that we have 
> two devices in parallel to form a 32 bit path 
> 
> The configuration lines are:
> 
> in altair_strataflash.inl->
> 
> #define CYGNUM_FLASH_DEVICES     (2)
> #define CYGNUM_FLASH_BASE        (0x00000000u)
> #define CYGNUM_FLASH_BASE_MASK   (0xFE000000u) // 2 * 16Mb devices
> #define CYGNUM_FLASH_WIDTH       (16)
> #define CYGNUM_FLASH_BLANK       (1)
> 
> #define FLASH_P2V(x) ((volatile flash_t *)(((unsigned)(x) < 0x1000) ? \
>                              ((unsigned)(x) | 0xa0000000) : \
>                              (unsigned)(x)))
> 

Why do you have this code?  I think it was only necessary on the IQ80321
and definitely *not* on the PXA25x

> 
> 
> 
> 
> 
> > 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
> 
> 
> 
> On 2003.11.10 16:20, Gary Thomas wrote:
> > 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,
> > 
> > 
> > 
-- 
Gary Thomas <gary@mlbassoc.com>
MLB Associates


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RE: [ECOS] Flash detection

[Jay Foster]

You might want to check your configuration.  You state that you are using 2
(16-bit?) devices in parallel to form a 32-bit wide device.

You should probably define
	#define CYGNUM_FLASH_INTERLEAVE (2)    // 2 devices in parallel
	#define CYGNUM_FLASH_SERIES     (1)    // Only one series
	#define CYGNUM_FLASH_WIDTH      (16)   // Each device is 16-bits
wide

I'm not sure if CYGNUM_FLASH_DEVICES needs to be 2 or 1 in your case, as the
driver does some automatic arithmetic when the CYGNUM_FLASH_INTERLEAVE is 2.

Jay

-----Original Message-----
From: M.Eugenia G.Valdecasas [mailto:valdecasas@isar-tec.com]
Sent: Monday, November 10, 2003 9:01 AM
To: Gary Thomas
Cc: ecos-discuss@sources.redhat.com
Subject: Re: [ECOS] Flash detection


> 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)

The write signal is allowed, actually the flash enters the query mode 
and read ID mode succesfully. We have traced it with a logic state 
analyzer. we can see all this data string : 0x00890089, 0x00180018, 
0x00510051 and blah blah blah....
I can't understand why all the information is in the bus (apparently 
succesfull read query and ID process) but the driver is still saying 
that can't not recognise the device...


>   * 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.
> 

Sorry, I didn't express it correctly... what I meant is that we have 
two devices in parallel to form a 32 bit path 

The configuration lines are:

in altair_strataflash.inl->

#define CYGNUM_FLASH_DEVICES     (2)
#define CYGNUM_FLASH_BASE        (0x00000000u)
#define CYGNUM_FLASH_BASE_MASK   (0xFE000000u) // 2 * 16Mb devices
#define CYGNUM_FLASH_WIDTH       (16)
#define CYGNUM_FLASH_BLANK       (1)

#define FLASH_P2V(x) ((volatile flash_t *)(((unsigned)(x) < 0x1000) ? \
                             ((unsigned)(x) | 0xa0000000) : \
                             (unsigned)(x)))






> 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



On 2003.11.10 16:20, Gary Thomas wrote:
> 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,
> 
> 
> 

-- 
Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
and search the list archive: http://sources.redhat.com/ml/ecos-discuss

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RE: [ECOS] Flash detection

[Gary Thomas]

On Mon, 2003-11-10 at 11:00, Jay Foster wrote:
> You might want to check your configuration.  You state that you are using 2
> (16-bit?) devices in parallel to form a 32-bit wide device.
> 
> You should probably define
> 	#define CYGNUM_FLASH_INTERLEAVE (2)    // 2 devices in parallel
> 	#define CYGNUM_FLASH_SERIES     (1)    // Only one series
> 	#define CYGNUM_FLASH_WIDTH      (16)   // Each device is 16-bits
> wide
> 
> I'm not sure if CYGNUM_FLASH_DEVICES needs to be 2 or 1 in your case, as the
> driver does some automatic arithmetic when the CYGNUM_FLASH_INTERLEAVE is 2.


This setup is correct for 2 16-bit devices in parallel, behaving like
one 32-bit device.  Indeed, the extra stuff done by the driver is just
what's needed to make both devices work in parallel.

> Jay
> 
> -----Original Message-----
> From: M.Eugenia G.Valdecasas [mailto:valdecasas@isar-tec.com]
> Sent: Monday, November 10, 2003 9:01 AM
> To: Gary Thomas
> Cc: ecos-discuss@sources.redhat.com
> Subject: Re: [ECOS] Flash detection
> 
> 
> > 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)
> 
> The write signal is allowed, actually the flash enters the query mode 
> and read ID mode succesfully. We have traced it with a logic state 
> analyzer. we can see all this data string : 0x00890089, 0x00180018, 
> 0x00510051 and blah blah blah....
> I can't understand why all the information is in the bus (apparently 
> succesfull read query and ID process) but the driver is still saying 
> that can't not recognise the device...
> 
> 
> >   * 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.
> > 
> 
> Sorry, I didn't express it correctly... what I meant is that we have 
> two devices in parallel to form a 32 bit path 
> 
> The configuration lines are:
> 
> in altair_strataflash.inl->
> 
> #define CYGNUM_FLASH_DEVICES     (2)
> #define CYGNUM_FLASH_BASE        (0x00000000u)
> #define CYGNUM_FLASH_BASE_MASK   (0xFE000000u) // 2 * 16Mb devices
> #define CYGNUM_FLASH_WIDTH       (16)
> #define CYGNUM_FLASH_BLANK       (1)
> 
> #define FLASH_P2V(x) ((volatile flash_t *)(((unsigned)(x) < 0x1000) ? \
>                              ((unsigned)(x) | 0xa0000000) : \
>                              (unsigned)(x)))
> 
> 
> 
> 
> 
> 
> > 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
> 
> 
> 
> On 2003.11.10 16:20, Gary Thomas wrote:
> > 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,
> > 
> > 
> > 
> 
> -- 
> Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
> and search the list archive: http://sources.redhat.com/ml/ecos-discuss
-- 
Gary Thomas <gary@mlbassoc.com>
MLB Associates


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Re:[ECOS] Flash detection

[M.Eugenia G.Valdecasas]

> > The configuration lines are:
> >
> > in altair_strataflash.inl->
> >
> > #define CYGNUM_FLASH_DEVICES     (2)
> > #define CYGNUM_FLASH_BASE        (0x00000000u)
> > #define CYGNUM_FLASH_BASE_MASK   (0xFE000000u) // 2 * 16Mb devices
> > > #define CYGNUM_FLASH_WIDTH       (16)
> > > #define CYGNUM_FLASH_BLANK       (1)
> > >
> > > #define FLASH_P2V(x) ((volatile flash_t *)(((unsigned)(x) <
> 0x1000) ? \
> > >                              ((unsigned)(x) | 0xa0000000) : \
> > >                              (unsigned)(x)))
> > >
> >

> Why do you have this code?  I think it was only necessary on the
> IQ80321
> and definitely *not* on the PXA25x

If I substitude this code for
#define FLASH_P2V(x) (unsigned)(x)

The exit on the console would be:

+$T0a0f:08f0efa3;0d:d8ca00a0;#a7

and would repeat the same line every time I press a key.

Also I tried to apply the patch for strataflash:
2003-05-02 	Jani Monoses

but it gave me this answer as well:
+$T0a0f:08f0efa3;0d:d8ca00a0;#a7

Do I have to apply other patches?

I know I take ok the data of the flash (manufacturer code, qry etc...) 
but somehow somewhere between the cache enable and cache disable, this 
data is lost... does it make anysense what I am saying???

Why would it jump out of this condition
  if ( (qp->manuf_code == FLASH_Intel_code) &&
	(strncmp(qp->id, "QRY", 3) == 0))

if the data that the flash sends is correct???? 
I am out of ideas....


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Re: [ECOS] Flash detection

[Jani Monoses]

> If I substitude this code for
> #define FLASH_P2V(x) (unsigned)(x)
> 
> The exit on the console would be:
> 
> +$T0a0f:08f0efa3;0d:d8ca00a0;#a7

Do you have the same behaviour with current strataflash from CVS?
I know at one point cache handling was broken and the patch you said you
applied fixed it but still..

Exit minicom and look with gdb why the above exception occurs

arm-elf-gdb install/bin/redboot.elf
()tar rem /dev/ttyS0 (or whichever port your target is connected to)
()bt


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