[U-Boot] fw_printenv - 'Warning: Bad CRC, using default environment'

[U-Boot] fw_printenv - 'Warning: Bad CRC, using default environment'

[shobin b]

hi,   i'm using the uboot-tools (fw_printenv) to readout the env-settings of my toradex board uboot-toradex. unfortunately i always get the 'Warning: Bad CRC, using default environment' msg, Warning: Bad CRC, using default environment
 bootcmd=bootp; setenv bootargs root=/dev/nfs nfsroot=${serverip}:${rootpath} ip=${ipad dr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off; bootm
 bootdelay=5
 baudrate=115200here is the mtd partitions in linux,sh-4.2# cat /proc/mtd
dev:    size   erasesize  name
mtd0: 1e7c0000 00040000 "USR"
mtd1: 00300000 00040000 "BCT"
mtd2: 00040000 00040000 "PT"
mtd3: 00200000 00040000 "EBT"
mtd4: 00040000 00040000 "BMP"
mtd5: 00200000 00040000 "ENV"
mtd6: 00800000 00040000 "LNX"
mtd7: 00040000 00040000 "ARG"
and in fw_env.config,# Configuration file for fw_(printenv/saveenv) utility.
# Up to two entries are valid, in this case the redundant
# environment sector is assumed present.
# Notice, that the "Number of sectors" is ignored on NOR and SPI-dataflash.
# Futhermore, if the Flash sector size is ommitted, this value is assumed to
# be the same as the Environment size, which is valid for NOR and SPI-dataflash

# NOR example
# MTD device name	Device offset	Env. size	Flash sector size	Number of sectors
#/dev/mtd1		0x0000		0x4000		0x4000
#/dev/mtd2		0x0000		0x4000		0x4000

# MTD SPI-dataflash example
# MTD device name	Device offset	Env. size	Flash sector size	Number of sectors
#/dev/mtd5		0x4200		0x4200
#/dev/mtd6		0x4200		0x4200

# NAND example
#/dev/mtd0		0x4000		0x4000		0x20000			2
/dev/mtd5		0x0000		0x40000		0x200000		1please tell me the solution.

 		 	   		  

[U-Boot] fw_printenv - 'Warning: Bad CRC, using default environment'

[Wolfgang Denk]

Dear shobin b,

In message <BAY177-W24A6AF38881CE02882F14EB2410@phx.gbl> you wrote:
>
> hi,   i'm using the uboot-tools (fw_printenv) to readout the env-settings of my toradex board uboot-toradex. unfortunately i always get the 'Warning: Bad CRC, using default environment' msg, Warning: Bad CRC, using default environment

Please restrict your line length to some 70 characters or so.

And please provide more dsetails: what exactly is your board name, and
which exact version of U-Boot are you running on it?

>  baudrate=115200here is the mtd partitions in linux,sh-4.2# cat /proc/mtd
> dev:    size   erasesize  name
> mtd0: 1e7c0000 00040000 "USR"
> mtd1: 00300000 00040000 "BCT"
> mtd2: 00040000 00040000 "PT"
> mtd3: 00200000 00040000 "EBT"
> mtd4: 00040000 00040000 "BMP"
> mtd5: 00200000 00040000 "ENV"
> mtd6: 00800000 00040000 "LNX"
> mtd7: 00040000 00040000 "ARG"

Please also show the corresponding boot messages of the Linux kernel
so we can see how which partition is where, on which device, etc.

> and in fw_env.config,# Configuration file for fw_(printenv/saveenv) utility.

Argh... Your mix of your text and quoted command output is basically
unreadable.  Please try and make your mails a bit easier to read.

Apparently your config file is wrong, but you don't provide enough
information to spot the actual issue.

> /dev/mtd5		0x0000		0x40000		0x200000 1please tell me the solution.

In any case your flash sector size (2 MB) is totally bogus.

Best regards,

Wolfgang Denk

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DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
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Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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