[U-Boot-Users] environment settings question

[nicky geerts]

I guess you'll be fine using the first three defines, I just use the
redundant sector for backup.

in the command line interface, when you change environment settings
with "setenv", don't forget to save them with "saveenv", compile with
code with "#define DEBUG" in your config header file to enable the
output of all debug messages.

Nicky

2007/6/26, sapirf fersht <sapirf at gmail.com>:
> > you also need to indicate where this redundant storage is located
> > (also see the README file for more information on what these defines
> > do):
> >
> > for example
> > #define CFG_ENV_IS_IN_FLASH     1
> > #define CFG_ENV_ADDR            0xXXXXXXXX
> > #define CFG_ENV_SECT_SIZE       0xXXXXXXXX
>
>
> > #define CFG_ENV_ADDR_REDUND     0xXXXXXXXX
> > #define CFG_ENV_SIZE_REDUND     0xXXXXXXXX
>
> I just read the README about these parameters.
> These settings describe a second storage area used to hold
>            a redundand copy of the environment data, so that there is
>            a valid backup copy in case there is a power failure during
>            a "saveenv" operation.
>
> My board is based on ixdp425. I don't have these values. Is it wrong?
>
> >
> > Nicky Geerts
> >
> > 2007/6/26, sapirf fersht <sapirf at gmail.com>:
> > > see below my reply:
> > >
> > > On 6/26/07, nicky geerts <nicky.geerts.news at gmail.com> wrote:
> > > > grep -r CFG_ENV_IS_IN_FLASH * | grep if
> > > >
> > > > it does show that CFG_ENV_IS_IN_FLASH is checked to be '1' in some
> > > > custom board flash drivers
> > >
> > > in 90% of the boards it appears with 1.  The rest which it didn't
> > > appear i thought it's just a mistake which didn't make any problems
> > > with compilation.
> > >
> > > The problem is that it still reads from default after reset instead
> > > from from flash.
> > >
> > > Can it be that the flash environment sector is protected, and i need
> > > to unprotect, copy and put the protect on again?
> > >
> > >
> > > >
> > > > your safest bet would be the second option, although I agree with
> > > > Timur Tabi that it isn't really logical.
> > > >
> > > > 2007/6/26, Timur Tabi <timur at freescale.com>:
> > > > > sapirf fersht wrote:
> > > > > > For a ixp425 cpu how should the environment value
> > > > > > #define CFG_ENV_IS_IN_FLASH be set?
> > > > > >
> > > > > > #define CFG_ENV_IS_IN_FLASH
> > > > > >
> > > > > > OR
> > > > > >
> > > > > > #define CFG_ENV_IS_IN_FLASH 1
> > > > >
> > > > > The code that uses these macros should support both methods, but personally I prefer that
> > > > > the macros themselves be defined using the first method.  IMHO, you should define a macro
> > > > > to contain a value only if that value has some inherent significance.  For example, does
> > > > > "1" really mean something that "2" doesn't?  In this case, no.
> > > > >
> > > > > --
> > > > > Timur Tabi
> > > > > Linux Kernel Developer @ Freescale
> > > > >
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