Re: [Ltib] u-boot Default Environment Variables Location

Todd

On Thu, Aug 23, 2012 at 1:26 PM, Douglas Peterson <address@hidden> wrote:

In your board-specific configs header file (include/configs/your-header.h) you will have a section something like this:

/*
* Environment Configuration
*/

#define CONFIG_ENV_OVERWRITE

#define CONFIG_BAUDRATE 115200

#define CONFIG_LOADADDR 800000 /* default location for tftp and bootm */

#define CONFIG_BOOTDELAY 3 /* -1 disables auto-boot */
#undef CONFIG_BOOTARGS /* the boot command will set bootargs */

#define CONFIG_EXTRA_ENV_SETTINGS \
"autoload=n\0" \
"consoledev=ttyS0\0" \
""
#define CONFIG_BOOTCOMMAND "run ramboot"

Some of the commands are set with CONFIG_XXX macros (e.g. CONFIG_BOOTCOMMAND), the rest go in CONFIG_EXTRA_ENV_SETTINGS.

Douglas Peterson

-----Original Message-----
From: ltib-bounces+douglas.peterson=address@hidden [mailto:ltib-bounces+douglas.peterson=address@hidden] On Behalf Of Mike Goins
Sent: Wednesday, August 22, 2012 6:34 AM
To: ltib
Cc: Todd Sampson
Subject: Re: [Ltib] u-boot Default Environment Variables Location

On Wed, Aug 22, 2012 at 9:16 AM, Todd Sampson <address@hidden> wrote:
> Each time I configure a target, I have to go into u-boot and use 'setenv' to
> change some environment variables.
>
> Where are the default environment variables for u-boot stored in the LTIB
> world? I want to edit these so each time I flash a target, the u-boot
> environment variables are correct.

The uboot parameters are stored in flash on your target.
You want printenv and savenv:
http://www.denx.de/wiki/DULG/UBootCmdGroupEnvironment

> Thanks!
>

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From:	Todd Sampson
Subject:	Re: [Ltib] u-boot Default Environment Variables Location
Date:	Thu, 23 Aug 2012 15:35:23 -0400