[U-Boot] AT91RM9200 boots from NOR Flash or not

[U-Boot] AT91RM9200 boots from NOR Flash or not

[Jens Scharsig]

Hello,

I am a little bit confused. We have designed a new AT91RM9200 based
board. It should boot from 16-bit NOR Flash. I have read many relevant
article in the forum, but I don't know , which board should I use as a
base. I have look at the actual source (2008.10 and git), and I think,
u-boot can't boot without a preloader as long CONFIG_AT91RM9200 is defined.
Is there an open patch to resolve this?
Can you get an example for a working implementation?

Best regarts

Jens Scharsig

[U-Boot] AT91RM9200 boots from NOR Flash or not

[Martin Hejnfelt]

Jens Scharsig wrote:
> Hello,
>
> I am a little bit confused. We have designed a new AT91RM9200 based
> board. It should boot from 16-bit NOR Flash. I have read many relevant
> article in the forum, but I don't know , which board should I use as a
> base. I have look at the actual source (2008.10 and git), and I think,
> u-boot can't boot without a preloader as long CONFIG_AT91RM9200 is defined.
> Is there an open patch to resolve this?
> Can you get an example for a working implementation?
>
> Best regarts
>
> Jens Scharsig
>
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot
>
>   
It's true that it won't boot when CONFIG_AT91RM9200 is defined. I dont 
know why it is like this since older versions of U-boot didn't have this 
problem (it changed around 1.3.0 if I remember correctly). It's almost 
like even if you do not define CONFIG_SKIP_LOWLEVEL_INIT and/or 
CONFIG_SKIP_RELOCATE_UBOOT, it still works like they were. Maybe it's 
because Atmel usually supplies their own Boot.bin along with the 
Development Kit (the configuration I would say you should use as example 
for your own) You can resolve this by editing two lines in the start.S 
file of the ARM920T cpu specific directory. In version 2008.10 its line 
181 you can delete this, or change to ifdef, and again in line 264 you 
can either delete the if statement, or just make it branch to the 
lowlevel_init no matter what.

I know its what someone would call a hack, but it works :)

Mvh. / Best Regards

Martin Hejnfelt

[U-Boot] AT91RM9200 boots from NOR Flash or not

[Jens Scharsig]

> for your own) You can resolve this by editing two lines in the start.S 
> file of the ARM920T cpu specific directory. In version 2008.10 its line 
> 181 you can delete this, or change to ifdef, and again in line 264 you 
> can either delete the if statement, or just make it branch to the 
> lowlevel_init no matter what.
> 
> I know its what someone would call a hack, but it works :)
> 
> Mvh. / Best Regards
> 
> Martin Hejnfelt

Thanx Martin,

the board speaks to me.

Regards

Jens Scharsig

[U-Boot] AT91RM9200 boots from NOR Flash or not

[Wolfgang Denk]

Dear Jens Scharsig,

In message <geuh91$i0s$1@ger.gmane.org> you wrote:
> 
> I am a little bit confused. We have designed a new AT91RM9200 based
> board. It should boot from 16-bit NOR Flash. I have read many relevant
> article in the forum, but I don't know , which board should I use as a
> base. I have look at the actual source (2008.10 and git), and I think,
> u-boot can't boot without a preloader as long CONFIG_AT91RM9200 is defined.
> Is there an open patch to resolve this?
> Can you get an example for a working implementation?

At least the at91rm9200dk and cmc_pu2 are supposed to boot  from  NOR
flash  -  they  did in earlier versions of U=-Boot, but probably have
not undergone much testing lately. I have only  the  AT91RM9200DK  in
immediate  access at the moment - this one boots 1.2.0-g14da5f76 just
fine.

If recent versions should not work any  more  it  would  be  nice  if
someone  with  suitable hardware could run a git bisect to locate the
culprit. Thanks in advance.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
If a packet hits a pocket on a socket on a port,
And the bus is interrupted as a very last resort,
And the address of the memory makes your floppy disk abort,
Then the socket packet pocket has an error to report! - Ken Burchill?

[U-Boot] AT91RM9200 boots from NOR Flash or not

[Wolfgang Denk]

Dear Jens Scharsig,

In message <geun14$57f$1@ger.gmane.org> you wrote:
>
> the board speaks to me.

A patch, a patch - submit a patch, please.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Unser Kopf ist rund, damit das Denken die Richtung wechseln kann.
                                                   -- Francis Picabia

[U-Boot] AT91RM9200 boots from NOR Flash or not

[Jens Scharsig]

> Dear Jens Scharsig,
> 
> In message <geun14$57f$1@ger.gmane.org> you wrote:
>> the board speaks to me.
> 
> A patch, a patch - submit a patch, please.
> 
> Best regards,
> 
> Wolfgang Denk
> 

Dear Wolfgang Denk,

I can do this in few weeks. But I have only our costum board. So I can't
test the interaktion with other boards.


Best regarts Jens

[U-Boot] AT91RM9200 boots from NOR Flash or not

[Wolfgang Denk]

Dear Jens,

in message <gf0p2n$rd2$1@ger.gmane.org> you wrote:
>
> I can do this in few weeks. But I have only our costum board. So I can't
> test the interaktion with other boards.

I can test on the DK, and eventually on the cmc_pu2.


Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
This cultural mystique surrounding the  biological  function  --  you
realize humans are overly preoccupied with the subject.
	-- Kelinda the Kelvan, "By Any Other Name", stardate 4658.9

[U-Boot] AT91RM9200 boots from NOR Flash or not

[Pink Boy]

Martin Hejnfelt sez,

> Message from Jens Scharsig,
>> I am a little bit confused. We have designed a new AT91RM9200 
>> based board. It should boot from 16-bit NOR Flash. I have read 
>> many relevant article in the forum, but I don't know , which 
>> board should I use as a base. I have look at the actual source 
>> (2008.10 and> git), and I think, u-boot can't boot without a 
>> preloader as long> CONFIG_AT91RM9200 is defined. Is there an 
>> open patch to resolve this? Can you get an example for a working
>> implementation?

I built u-boot 1.3.4 for the AT91RM9200DK and was able to hack in
support for the flash chip I'm using.  You might try the same.

The setup I'm using is to store boot.bin from atmel in flash
at .  And a copy of u-boot.gz at 10010000.

The way I did was to enable the AT91RM9200's boot serial port boot
loader and download Atmels loader.bin via XMODEM.  Then download
uboot.bin via XMODEM.  Once that it downloaded you should get a
prompt.

For auto booting I have Atmels boot program boot.bin stored in
flash at 10000000-10005fff.  And gzipped u-boot stored at 
10010000-1001ffff.

> It's true that it won't boot when CONFIG_AT91RM9200
> is defined. I don't know why it is like this since older 
> versions of U-boot didn't have this problem (it changed 
> around 1.3.0 if I remember correctly).

Hmmm...

> It's almost like even if you do not define CONFIG_SKIP_LOWLEVEL_INIT
> and/or CONFIG_SKIP_RELOCATE_UBOOT, it still works like they were.
> Maybe it's because Atmel usually supplies their own Boot.bin 
> along with the Development Kit (the configuration I would say 
> you should use as example for your own) You can resolve this by 
> editing two lines in the start.S file of the ARM920T cpu specific
> directory. In version 2008.10 its line 181 you can delete this, or
> change to ifdef, and again in line 264 you can either delete the if
> statement, or just make it branch to the lowlevel_init no matter 
> what.
> 
> I know its what someone would call a hack, but it works :)

This is the second place I've seen this.  I've been using atmels
boot.bin loader to uncompress u-boot and it seems to work okay.

Matt Harper
Tehama-Wireless.

[U-Boot] AT91RM9200 boots from NOR Flash or not

[Wolfgang Denk]

Dear Pink Boy,

In message <110687.69405.qm@web31811.mail.mud.yahoo.com> you wrote:
> 
> I built u-boot 1.3.4 for the AT91RM9200DK and was able to hack in
> support for the flash chip I'm using.  You might try the same.
> 
> The setup I'm using is to store boot.bin from atmel in flash
> at .  And a copy of u-boot.gz at 10010000.

This is not needed. U-Boot can boot from NOR directly, without need
for boot.bin.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
The C-shell doesn't parse. It adhoculates.
    - Casper.Dik at Holland.Sun.COM in <3ol96k$b2j@engnews2.Eng.Sun.COM>

[U-Boot] AT91RM9200 boots from NOR Flash or not

[Nikumbh, Raj]

 

I want to use the u-boot-1.3.4 with the patch from AT91 for my custom
board based on AT91RM9200 with 32MB SDRAM (MT48LC8M16A2) and 8MB flash
(AT49BV6416-70TI). I am directly flashing the image to flash location at
0x10000000 (beginning of the flash). But I am not able to see anything
on my debug port.

 

I  want to know if I am doing something wrong.

[U-Boot] AT91RM9200 boots from NOR Flash or not

[Wolfgang Denk]

Dear "Nikumbh, Raj (IE10)",

In message <047570340A9B314187387ACC723459ACAE018E@IE10EV811.global.ds.honeywell.com> you wrote:
> 
> I want to use the u-boot-1.3.4 with the patch from AT91 for my custom
> board based on AT91RM9200 with 32MB SDRAM (MT48LC8M16A2) and 8MB flash
> (AT49BV6416-70TI). I am directly flashing the image to flash location at
> 0x10000000 (beginning of the flash). But I am not able to see anything
> on my debug port.

> I  want to know if I am doing something wrong.

We don't know your hardware or the changes you might have made to the
code to adapt it for your hardware.

Also, U-Boot 1.3.4 is very old.

Please update to a current version (top of tree recommended) and try
again.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
I am an atheist, thank God!

[U-Boot] AT91RM9200 boots from NOR Flash or not

[Drasko DRASKOVIC]

On Fri, Feb 19, 2010 at 11:30 AM, Nikumbh, Raj (IE10) <
Raj.Nikumbh@honeywell.com> wrote:

>
>
> I want to use the u-boot-1.3.4 with the patch from AT91 for my custom
> board based on AT91RM9200 with 32MB SDRAM (MT48LC8M16A2) and 8MB flash
> (AT49BV6416-70TI). I am directly flashing the image to flash location at
> 0x10000000 (beginning of the flash). But I am not able to see anything
> on my debug port.
>

Which debug port?

[U-Boot] AT91RM9200 boots from NOR Flash or not

[Nikumbh, Raj]

I am using JTAG port with SAM-ICE.

 

Regards

Raj Nikumbh   

 

________________________________

From: Drasko DRASKOVIC [mailto:drasko.draskovic at gmail.com] 
Sent: Friday, February 19, 2010 5:41 PM
To: Nikumbh, Raj (IE10)
Cc: u-boot at lists.denx.de
Subject: Re: [U-Boot] AT91RM9200 boots from NOR Flash or not

 

 

On Fri, Feb 19, 2010 at 11:30 AM, Nikumbh, Raj (IE10)
<Raj.Nikumbh@honeywell.com> wrote:



I want to use the u-boot-1.3.4 with the patch from AT91 for my custom
board based on AT91RM9200 with 32MB SDRAM (MT48LC8M16A2) and 8MB flash
(AT49BV6416-70TI). I am directly flashing the image to flash location at
0x10000000 (beginning of the flash). But I am not able to see anything
on my debug port.


Which debug port?

 

[U-Boot] AT91RM9200 boots from NOR Flash or not

[Drasko DRASKOVIC]

On Fri, Feb 19, 2010 at 1:16 PM, Nikumbh, Raj (IE10) <
Raj.Nikumbh@honeywell.com> wrote:

>  I am using JTAG port with SAM-ICE.
>
Can't you stop your uC at reset addr and step to see if you go to _start or
hit some exception?
I guess you connect GDB to JTAG via monitor and disassemble what you have
burned at 0x0 , then compare to startup.S of U-Boot?
Also, check if your flashing went well by fumping flash image.

[U-Boot] AT91RM9200 boots from NOR Flash or not

[Maxim Podbereznyi]

Did you pull BMS pin to GND? Do you mean DBGU pins by "debug port"?

2010/2/19 Nikumbh, Raj (IE10) <Raj.Nikumbh@honeywell.com>

>
>
> I want to use the u-boot-1.3.4 with the patch from AT91 for my custom
> board based on AT91RM9200 with 32MB SDRAM (MT48LC8M16A2) and 8MB flash
> (AT49BV6416-70TI). I am directly flashing the image to flash location at
> 0x10000000 (beginning of the flash). But I am not able to see anything
> on my debug port.
>
>
>
> I  want to know if I am doing something wrong.
>
>
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot
>
>

[U-Boot] AT91RM9200 boots from NOR Flash or not

[Nikumbh, Raj]

Yeah I did pull it down at the startup. And I meant the same DBGU pins.

 

Regards

Raj Nikumbh   

 

________________________________

From: Maxim Podbereznyi [mailto:lisarden at gmail.com] 
Sent: Friday, February 19, 2010 7:41 PM
To: Nikumbh, Raj (IE10)
Cc: u-boot at lists.denx.de
Subject: Re: [U-Boot] AT91RM9200 boots from NOR Flash or not

 

Did you pull BMS pin to GND? Do you mean DBGU pins by "debug port"?

2010/2/19 Nikumbh, Raj (IE10) <Raj.Nikumbh@honeywell.com>



I want to use the u-boot-1.3.4 with the patch from AT91 for my custom
board based on AT91RM9200 with 32MB SDRAM (MT48LC8M16A2) and 8MB flash
(AT49BV6416-70TI). I am directly flashing the image to flash location at
0x10000000 (beginning of the flash). But I am not able to see anything
on my debug port.



I  want to know if I am doing something wrong.


_______________________________________________
U-Boot mailing list
U-Boot at lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot

 

[U-Boot] AT91RM9200 boots from NOR Flash or not

[Maxim Podbereznyi]

OK, then can you explain what software do you flash? Does rm9200 u-boot
setup PLL? Because if it is not then you will never see anything at DBGU
pins. Another problem can be with your RC filters for PLL. Did you use the
same quartz as in the Atmel design? If not then you must calculate RC
filters and change them on your board.

BTW, if your SDRAM does not work then u-boot will never start :)

2010/2/19 Nikumbh, Raj (IE10) <Raj.Nikumbh@honeywell.com>

>  Yeah I did pull it down at the startup. And I meant the same DBGU pins.
>
>
>
> *Regards*
>
> *Raj Nikumbh   *
>
>
>   ------------------------------
>
> *From:* Maxim Podbereznyi [mailto:lisarden at gmail.com]
> *Sent:* Friday, February 19, 2010 7:41 PM
> *To:* Nikumbh, Raj (IE10)
> *Cc:* u-boot at lists.denx.de
> *Subject:* Re: [U-Boot] AT91RM9200 boots from NOR Flash or not
>
>
>
> Did you pull BMS pin to GND? Do you mean DBGU pins by "debug port"?
>
> 2010/2/19 Nikumbh, Raj (IE10) <Raj.Nikumbh@honeywell.com>
>
>
>
> I want to use the u-boot-1.3.4 with the patch from AT91 for my custom
> board based on AT91RM9200 with 32MB SDRAM (MT48LC8M16A2) and 8MB flash
> (AT49BV6416-70TI). I am directly flashing the image to flash location at
> 0x10000000 (beginning of the flash). But I am not able to see anything
> on my debug port.
>
>
>
> I  want to know if I am doing something wrong.
>
>
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot
>
>
>

[U-Boot] AT91RM9200 boots from NOR Flash or not

[Eric Bénard]

Hi,

Le 20/02/2010 08:25, Maxim Podbereznyi a ?crit :
> OK, then can you explain what software do you flash? Does rm9200 u-boot
> setup PLL? Because if it is not then you will never see anything at DBGU
> pins. Another problem can be with your RC filters for PLL. Did you use the
> same quartz as in the Atmel design? If not then you must calculate RC
> filters and change them on your board.
>
> BTW, if your SDRAM does not work then u-boot will never start :)
>
> 2010/2/19 Nikumbh, Raj (IE10)<Raj.Nikumbh@honeywell.com>
>
>>   Yeah I did pull it down at the startup. And I meant the same DBGU pins.
>>
the board support in board/eukrea/cpuat91 was working fine last time I 
tested it and this board is close to your configuration (AT91RM9200 + 
NOR Flash 16bits width) so maybe you can try it (you may just need to 
update SDRAM geometry and timings and SMC timings for your NOR flash).

Eric

[U-Boot] AT91RM9200 boots from NOR Flash or not

[Nikumbh, Raj]

Hi, 

I have compiled u-boot-latest with ELDK 4.1 for AT91RM9200EK board (as I have kept the memory configurations and crystals similar to the board).I am getting something on the hyper terminal now. My hyperterminal configuration 115200-8-N-1 Given below is the snapshot as it comes.

U
B-oo t02900. 8F(be2  20201- 1 :1041:)5

 I2C:   ready
DRAM:  !!BM

Please let me know if somebody faced a similar situation or any pointers to get out of this problem.
 
Regards
Raj Nikumbh  ?

-----Original Message-----
From: Eric B?nard [mailto:eric at eukrea.com] 
Sent: Saturday, February 20, 2010 6:52 PM
To: Nikumbh, Raj (IE10)
Cc: u-boot at lists.denx.de
Subject: Re: [U-Boot] AT91RM9200 boots from NOR Flash or not

Hi,

Le 20/02/2010 08:25, Maxim Podbereznyi a ?crit :
> OK, then can you explain what software do you flash? Does rm9200 u-boot
> setup PLL? Because if it is not then you will never see anything at DBGU
> pins. Another problem can be with your RC filters for PLL. Did you use the
> same quartz as in the Atmel design? If not then you must calculate RC
> filters and change them on your board.
>
> BTW, if your SDRAM does not work then u-boot will never start :)
>
> 2010/2/19 Nikumbh, Raj (IE10)<Raj.Nikumbh@honeywell.com>
>
>>   Yeah I did pull it down at the startup. And I meant the same DBGU pins.
>>
the board support in board/eukrea/cpuat91 was working fine last time I 
tested it and this board is close to your configuration (AT91RM9200 + 
NOR Flash 16bits width) so maybe you can try it (you may just need to 
update SDRAM geometry and timings and SMC timings for your NOR flash).

Eric