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AT91SAM9260-EK: Trying to load U-Boot env from NAND

U-Boot-Users Destrukto 4 participants 12 messages Nov 29, 2007 – Jan 25, 2008

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Destrukto

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#0 lore raw

Hello, this is my first post in this Forum and my English is not very good so I give my best to describe my problem.

I have a AT91SAM9260 eval kit board and until now there were not very much problem. But what stops me now is a really tough problem. I use the Bootstraploader for NAND boot which is compiled by Atmel in the Demo. I've compiled the U-Boot by my self and its starts without problem, but what get on my nerves is that I can't write the U-Boot env over .tcl file. To explain that, I load everything, just like it is done in the demo, with this batch- and .tcl-file. So, I've checked the checksum for the env's but everytime I uploaded it and trying to boot I get this:

U-Boot 1.1.5 (Nov 2 2006 - 10:20:33)

DRAM:  64 MB
NAND:  NAND device: Manufacturer ID: 0xec, Chip ID: 0xda (<NULL> NAND 256MiB
3,3V 8-bit)
256 MiB
DataFlash:AT45DB642
Nb pages:   8192
Page Size:   1056

Size= 8650752 bytes
Logical address: 0xD0000000
Area 0: D0000000 to D0003FFF (RO)
Area 1: D0004000 to D0007FFF
Area 2: D0008000 to D0037FFF (RO)
Area 3: D0038000 to D083FFFF
*** Warning - bad CRC or NAND, using default environment

In:    serial
Out:   serial
Err:   serial

DM9161A PHY Detected
End of Autonegociation
U-Boot>
U-Boot>
U-Boot> printenv
bootdelay=3
baudrate=115200
stdin=serial
stdout=serial
stderr=serial

Environment size: 69/131068 bytes
U-Boot>

I checked the env (nand read to copy them in the RAM and md to hae a look at them) and they're still correct. Well, I could write the env every by hand that would work but if you have to do this 20 times a day and you have really much to write this wouldn't be very funny.

So I hope I haven't forget anything, but if there is any question I will try to answer.

Greets, Destrukto

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#1 lore raw

Hi,

If I remember correctly, i got the same issue on
AT91SAM9263ek.

you please debug the Dataflash_Select() ...
there u many need to go into the if condition and
do valid=1;

so, please check it once and modify the condition...

u may get the solution ..

Thanks,
Seetharam

Quoted 65 lines · --- Destrukto

Hello, this is my first post in this Forum and my
English is not very good so
I give my best to describe my problem.

I have a AT91SAM9260 eval kit board and until now there were not very much
problem. But what stops me now is a really tough problem. I use the
Bootstraploader for NAND boot which is compiled by Atmel in the Demo. I've
compiled the U-Boot by my self and its starts without problem, but what get
on my nerves is that I can't write the U-Boot env over .tcl file. To explain
that, I load everything, just like it is done in the demo, with this batch-
and .tcl-file. So, I've checked the checksum for the env's but everytime I
uploaded it and trying to boot I get this:

U-Boot 1.1.5 (Nov 2 2006 - 10:20:33)

DRAM:  64 MB
NAND:  NAND device: Manufacturer ID: 0xec, Chip ID:

0xda (<NULL> NAND 256MiB
3,3V 8-bit)
256 MiB
DataFlash:AT45DB642

Nb pages:   8192
Page Size:   1056

Size= 8650752 bytes
Logical address: 0xD0000000
Area 0: D0000000 to D0003FFF (RO)
Area 1: D0004000 to D0007FFF
Area 2: D0008000 to D0037FFF (RO)
Area 3: D0038000 to D083FFFF
*** Warning - bad CRC or NAND, using default
environment

In:    serial
Out:   serial
Err:   serial

DM9161A PHY Detected
End of Autonegociation
U-Boot>
U-Boot>
U-Boot> printenv
bootdelay=3
baudrate=115200
stdin=serial
stdout=serial
stderr=serial

Environment size: 69/131068 bytes
U-Boot>

I checked the env (nand read to copy them in the RAM and md to hae a look at
them) and they're still correct. Well, I could write the env every by hand
that would work but if you have to do this 20 times a day and you have
really much to write this wouldn't be very funny.

Quoted 8 lines

So I hope I haven't forget anything, but if there is any question I will try
to answer.

Greets, Destrukto

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author
#2 lore raw

At first thanks for your reply, but could you explain that in detail please.

Thanks Destrukto

Hi,

If I remember correctly, i got the same issue on
AT91SAM9263ek.

you please debug the Dataflash_Select() ...
there u many need to go into the if condition and
do valid=1;

so, please check it once and modify the condition...

u may get the solution ..

Thanks,
Seetharam

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#3 lore raw

please Debug the function which i mention earlier.
If you don't get any clue, please copy the code of your Dataflash_Select() here

Thanks,
Seetharam

Destrukto <[email protected]> wrote:
At first thanks for your reply, but could you explain that in detail please.

Thanks Destrukto

Hi,

If I remember correctly, i got the same issue on
AT91SAM9263ek.

you please debug the Dataflash_Select() ...
there u many need to go into the if condition and
do valid=1;

so, please check it once and modify the condition...

u may get the solution ..

Thanks,
Seetharam

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author
#4 lore raw

Yes! I get it work, the problem was, that it had a problem to accept the crc32-Checksum. So I just erased the sequence where this happens. Here the patchfile:

env_nand.c +1 -9
@@ -247,13 +247,7 @@ void env_relocate_spec (void)
 		crc2_ok = (crc32(0, tmp_env2->data, ENV_SIZE) == tmp_env2->crc);
 	}
 
-	if(!crc1_ok && !crc2_ok)
-		return use_default();
-	else if(crc1_ok && !crc2_ok)
-		gd->env_valid = 1;
-	else if(!crc1_ok && crc2_ok)
-		gd->env_valid = 2;
-	else {
+	
 		/* both ok - check serial */
 		if(tmp_env1->flags == 255 && tmp_env2->flags == 0)
 			gd->env_valid = 2;

@@ -266,8 +260,6 @@ void env_relocate_spec (void)
 		else /* flags are equal - almost impossible */
 			gd->env_valid = 1;
 
-	}
-
 	free(env_ptr);
 	if(gd->env_valid == 1) {
 		env_ptr = tmp_env1;

Maybe it isn't the best solution but it works ;)
Thanks for you help!!

Destrukto

Quoted 63 lines · Dharmosoth Seetharam

please Debug the function which i mention earlier.
If you don't get any clue, please copy the code of your Dataflash_Select() here

Thanks,
Seetharam

Destrukto <[email protected]> wrote:
At first thanks for your reply, but could you explain that in detail please.

Thanks Destrukto

Hi,

If I remember correctly, i got the same issue on
AT91SAM9263ek.

you please debug the Dataflash_Select() ...
there u many need to go into the if condition and
do valid=1;

so, please check it once and modify the condition...

u may get the solution ..

Thanks,
Seetharam

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#5 lore raw

I agree with your comment. !!!!

cool..

Thanks,
Seetharam

Destrukto <[email protected]> wrote:
Yes! I get it work, the problem was, that it had a problem to accept the crc32-Checksum. So I just erased the sequence where this happens. Here the patchfile:

env_nand.c 2007-11-30 14:16:17.000000000 +0100 renamed from env_nand.c 2007-11-30 14:15:03.000000000 +0100 +1 -9
@@ -247,13 +247,7 @@ void env_relocate_spec (void)
   crc2_ok = (crc32(0, tmp_env2->data, ENV_SIZE) == tmp_env2->crc);
  }
 
- if(!crc1_ok && !crc2_ok)
-  return use_default();
- else if(crc1_ok && !crc2_ok)
-  gd->env_valid = 1;
- else if(!crc1_ok && crc2_ok)
-  gd->env_valid = 2;
- else {
+ 
   /* both ok - check serial */
   if(tmp_env1->flags == 255 && tmp_env2->flags == 0)
    gd->env_valid = 2;

@@ -266,8 +260,6 @@ void env_relocate_spec (void)
   else /* flags are equal - almost impossible */
    gd->env_valid = 1;
 
- }
-
  free(env_ptr);
  if(gd->env_valid == 1) {
   env_ptr = tmp_env1;

Maybe it isn't the best solution but it works ;)
Thanks for you help!!

Destrukto

Quoted 63 lines · Dharmosoth Seetharam

please Debug the function which i mention earlier.
If you don't get any clue, please copy the code of your Dataflash_Select() here

Thanks,
Seetharam

Destrukto wrote:
At first thanks for your reply, but could you explain that in detail please.

Thanks Destrukto

Hi,

If I remember correctly, i got the same issue on
AT91SAM9263ek.

you please debug the Dataflash_Select() ...
there u many need to go into the if condition and
do valid=1;

so, please check it once and modify the condition...

u may get the solution ..

Thanks,
Seetharam

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#7 lore raw
In reply to Destrukto
Quoted 10 lines · In message <[email protected]> you wrote:

Yes! I get it work, the problem was, that it had a problem to accept the crc32-Checksum. So I just erased the sequence where this happens. Here the patchfile:

env_nand.c +0 -0
@@ -247,13 +247,7 @@ void env_relocate_spec (void)
 		crc2_ok = (crc32(0, tmp_env2->data, ENV_SIZE) == tmp_env2->crc);
 	}

env_nand.c void env_relocate_spec (void) · line 251

Quoted 10 lines
env_nand.c +1 -7
 
-	if(!crc1_ok && !crc2_ok)
-		return use_default();
-	else if(crc1_ok && !crc2_ok)
-		gd->env_valid = 1;
-	else if(!crc1_ok && crc2_ok)
-		gd->env_valid = 2;
-	else {
+	
 		/* both ok - check serial */

You mean you completely castrated all logic that would verify if the environment is OK? Arrggghhhh...

env_nand.c void env_relocate_spec (void) · line 252

Quoted 1 line
env_nand.c +0 -0
 Maybe it isn't the best solution but it works ;)

You THINK it works, but actually it's completely broken.

Don't do that!!!

Best regards,

Wolfgang Denk

Signature · 5 lines
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
"UNIX was not designed to stop you from doing stupid things,  because
that would also stop you from doing clever things."       - Doug Gwyn
author
#8 lore raw

Well, until now I haven't got any problem with this solution. So until I can't find any better solution I will use the system as long as it works.

Quoted 55 lines · wd
Quoted 11 lines · In message <[email protected]> you wrote:

Yes! I get it work, the problem was, that it had a problem to accept the crc32-Checksum. So I just erased the sequence where this happens. Here the
patchfile:

env_nand.c +0 -0
@@ -247,13 +247,7 @@ void env_relocate_spec (void)
 		crc2_ok = (crc32(0, tmp_env2->data, ENV_SIZE) == tmp_env2->crc);
 	}

env_nand.c void env_relocate_spec (void) · line 251

Quoted 10 lines
env_nand.c +1 -7
 
-	if(!crc1_ok && !crc2_ok)
-		return use_default();
-	else if(crc1_ok && !crc2_ok)
-		gd->env_valid = 1;
-	else if(!crc1_ok && crc2_ok)
-		gd->env_valid = 2;
-	else {
+	
 		/* both ok - check serial */

You mean you completely castrated all logic that would verify if the environment is OK? Arrggghhhh...

env_nand.c void env_relocate_spec (void) · line 252

Quoted 1 line
env_nand.c +0 -0
 Maybe it isn't the best solution but it works ;)

You THINK it works, but actually it's completely broken.

Don't do that!!!

Best regards,

Wolfgang Denk

Signature · 15 lines
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
"UNIX was not designed to stop you from doing stupid things,  because
that would also stop you from doing clever things."       - Doug Gwyn

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#9 lore raw

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hello!

Quoted 1 line · Destrukto

Well, until now I haven't got any problem with this solution.

You probably don't have a problem but your customers will get them. I wish you some luck when your product goes to mass production if you neither have found out why your environment storage has problems nor if you don't have any error recovery.

With best regards
Andreas Schweigstill

PS.: If you need a consultant which does some forensics on your failed
products and is able to find a quick and clean(!) solution don't hesitate to contact me. ;-)

- --
Dipl.-Phys. Andreas Schweigstill
Schweigstill IT | Embedded Systems Schauenburgerstra?e 116, D-24118 Kiel, Germany
Phone: (+49) 431 5606-435, Fax: (+49) 431 5606-436
Mobile: (+49) 171 6921973, Web: http://www.schweigstill.de/
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Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org

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#11 lore raw
In reply to Destrukto
Quoted 3 lines · In message <[email protected]> you wrote:

Well, until now I haven't got any problem with this solution. So until I can't find any better solution I will use the system as long as it works.

Then all I can do is wishing you an early and complete crash, otherwise you will never fix the real problem until it really hurts.

Best regards,

Wolfgang Denk

Signature · 5 lines
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
"Beauty is transitory." "Beauty survives."
	-- Spock and Kirk, "That Which Survives", stardate unknown
author
#6 lore raw
In reply to Dharmosoth Seetharam

Well now I had time to solve the problem once and for all. If I look back the solution was so simple. Because we use a .bat and .tcl file to copy all on the NAND-Flash we haven't set the active ENV-Block (one redundant and one in use). Now I simply ad the flag set in the .tcl file and it works:

################################################################################
# proc uboot_env: Convert u-boot variables in a string ready to be flashed
# in the region reserved for environment variables
################################################################################
proc set_uboot_env {nameOfLstOfVar} {
upvar $nameOfLstOfVar lstOfVar

# sector size is the size defined in u-boot CFG_ENV_SIZE set sectorSize [expr 0x20000 - 5]
set flag 1
<- I added this

set strEnv [join $lstOfVar "\0"]
while {[string length $strEnv] < $sectorSize} {
append strEnv "\0"
}
set strCrc [binary format i [::vfs::crc $strEnv]] return "$strCrc$flag$strEnv"
<- and the $flag
}

Quoted 147 lines · Dharmosoth Seetharam

I agree with your comment. !!!!

cool..

Thanks,
Seetharam

Destrukto <[email protected]> wrote:
Yes! I get it work, the problem was, that it had a problem to accept the crc32-Checksum. So I just erased the sequence where this happens. Here the patchfile:

env_nand.c 2007-11-30 14:16:17.000000000 +0100 renamed from env_nand.c 2007-11-30 14:15:03.000000000 +0100 +1 -9
@@ -247,13 +247,7 @@ void env_relocate_spec (void)
   crc2_ok = (crc32(0, tmp_env2->data, ENV_SIZE) == tmp_env2->crc);
  }
 
- if(!crc1_ok && !crc2_ok)
-  return use_default();
- else if(crc1_ok && !crc2_ok)
-  gd->env_valid = 1;
- else if(!crc1_ok && crc2_ok)
-  gd->env_valid = 2;
- else {
+ 
   /* both ok - check serial */
   if(tmp_env1->flags == 255 && tmp_env2->flags == 0)
    gd->env_valid = 2;

@@ -266,8 +260,6 @@ void env_relocate_spec (void)
   else /* flags are equal - almost impossible */
    gd->env_valid = 1;
 
- }
-
  free(env_ptr);
  if(gd->env_valid == 1) {
   env_ptr = tmp_env1;

Maybe it isn't the best solution but it works ;)
Thanks for you help!!

Destrukto

Quoted 64 lines · Dharmosoth Seetharam

please Debug the function which i mention earlier. If you don't get any clue, please copy the code of your Dataflash_Select()
here

Thanks,
Seetharam

Destrukto wrote:
At first thanks for your reply, but could you explain that in detail please.

Thanks Destrukto

Hi,

If I remember correctly, i got the same issue on
AT91SAM9263ek.

you please debug the Dataflash_Select() ...
there u many need to go into the if condition and
do valid=1;

so, please check it once and modify the condition...

u may get the solution ..

Thanks,
Seetharam

Signature · 28 lines
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#10 lore raw
In reply to Andreas Schweigstill

Well now I had time to solve the problem once and for all. If I look back the solution was so simple. Because we use a .bat and .tcl file to copy all on the NAND-Flash we haven't set the active ENV-Block (one redundant and one in use). Now I simply ad the flag set in the .tcl file and it works:

################################################################################
# proc uboot_env: Convert u-boot variables in a string ready to be flashed
# in the region reserved for environment variables
################################################################################
proc set_uboot_env {nameOfLstOfVar} {
upvar $nameOfLstOfVar lstOfVar

# sector size is the size defined in u-boot CFG_ENV_SIZE set sectorSize [expr 0x20000 - 5]
set flag 1
<- I added this

set strEnv [join $lstOfVar "\0"]
while {[string length $strEnv] < $sectorSize} {
append strEnv "\0"
}
set strCrc [binary format i [::vfs::crc $strEnv]] return "$strCrc$flag$strEnv"
<- and the $flag
}

Quoted 47 lines · Andreas Schweigstill

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Hello!

Quoted 1 line · Destrukto

Well, until now I haven't got any problem with this solution.

You probably don't have a problem but your customers will get them. I wish you some luck when your product goes to mass production if you neither have found out why your environment storage has problems nor if you don't have any error recovery.

With best regards
Andreas Schweigstill

PS.: If you need a consultant which does some forensics on your failed
products and is able to find a quick and clean(!) solution don't hesitate to contact me. ;-)

- --
Dipl.-Phys. Andreas Schweigstill
Schweigstill IT | Embedded Systems Schauenburgerstra?e 116, D-24118 Kiel, Germany
Phone: (+49) 431 5606-435, Fax: (+49) 431 5606-436
Mobile: (+49) 171 6921973, Web: http://www.schweigstill.de/
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