How communicate between uboot and linux?

[jaewoo_lee]

Hello,

We are using LX2160ARDB/LSDK19.06 for development of network device.

We need multiple booting partition. So we need to select which partition will be booted next reboot from the linux.

How can we do it? Using flash memory is the only way  or does the LX2160A has special feature on it? (like Intercommunication between uboot and linux kernel)

BR

Jaewoo

[ufedor]

You wrote:

> So we need to select which partition will be booted

Which exactly functionality is in question?

[jaewoo_lee]

I just wondered if the LX2160A has a special functionality that supports configuration booting partition from Linux.

If not, I will use fw_setenv/fw_printenv as Jörg's advice. 

Thanks

[ufedor]

There is no another dedicated method.

[jaewoo_lee]

Thank you for the prompt reply.

[jhering_ruegen]

Hallo,

we use the u-boot tools:

fw_printenv and fw_setenv

HowCanIAccessUBootEnvironmentVariablesInLinux < DULG < DENX 

U-boot environment variables in linux - eLinux.org 

regards Jörg

[jaewoo_lee]

Thank you for the prompt reply.