Autoboot timeout setting for the i.MX23 EVK:

[GopiNagaBharath]

Hi All,

I am working on i.MX23 EVK with Linux.

I would need to make few changes on the ENV variables. But I am unable to halt the booting process after the execution of uBoot.

In order to stop the auto boot, I need to add a timeout after the execution of uBoot.

Can any one help me providing the details on how we can add the delay for stopping the autoboot, if required?

Is there any other way to halt the system after uboot?

Regards,

Gopi

[Yuri]

IMX23 (Freescale) Linux provides two (boot) options :

1) Uboot only ;
2) Kernel + filesystem without Uboot.

In last case situation looks like Uboot without timeout, but really Uboot is not involved here.

[GopiNagaBharath]

Hello,

Sorry for my delayed replay.

How do we compile and get the Uboot for the i.MX233 EVK??

Regards,

Gopi

[fabio_estevam]

Gopi,

I recommend you to use the latest U-boot version from:

git.denx.de Git - u-boot.git/summary

In order to build it and flash it to the SD card:

git.denx.de Git - u-boot.git/blob - doc/README.mx28_common

Regards,

Fabio Estevam

[GopiNagaBharath]

Hi,

I am flashing the images to NAND flash using the Mfg Tool provided by Freescale on Windows Platform.

The Mfg Tool profile provided for the MX233 doesn't flash the Uboot to Board, it just puts the uImage and Rootfs.

How can I copy the Uboot to the NAND flash? Also, is there any way to flash the images from the Ubuntu Host???

The Mfg tool takes too much of time to flash the binaries.

Regards,

Gopi

[OtavioSalvador]

U-Boot does not support MX23 NAND at this moment. It needs to be done.

[GopiNagaBharath]

When the U-Boot will be available??

On our board, we need to to few application specific implementations, which we plan to do in the U-Boot. How can we implement these??

[OtavioSalvador]

I am not personally working on this as I don't have a customer requiring it and my free time is limited at this moment. You might want to check the NAND controller driver and compare it with the kernel code and adapt it accordingly. Please send the patches to the u-boot mailing list so they can be reviewed and merged.

[OtavioSalvador]

Which version of  U-Boot are you using? the mainline or the FSL one?

In case it is in the mainline you can use:

CONFIG_BOOTDELAY var and rebuild it.