Re: [Buildroot] buildroot u-boot.nand oob size

[Arnout Vandecappelle <arnout@mind.be>]

  Hi Ivan,

On 23/09/2021 13:55, Ivan Riabtsov wrote:
> I have a system on an mx28evk chip, I have two types of nand memory,
> one with 64 bytes, the other 128 bytes, I am building a buildroot, I
> need a universal firmware for both types of memory, I found how to
> patch uboot so that it works with both memory types, but buildroot has
> an option for u-boot.nand NAND OOB size, which is not recognized by
> the bootloader during boot, but is hardcoded in u-boot.nand,
> 
> accordingly, if I set u-boot.nand oob size to 128 bytes, then the
> system with 64 memory will not boot and vice versa, tell me, is it
> possible to somehow create a universal firmware for both types of nand
> memory?

  If you use BR2_TARGET_UBOOT_FORMAT_NAND, then Buildroot will run the mxsboot 
tool to create u-boot.nand from u-boot.sb.

  I think there are two options for you.

1. Select BR2_TARGET_UBOOT_FORMAT_SB instead of _NAND and use a post-build 
script to generate the u-boot.nand.

2. Use BR2_TARGET_UBOOT_FORMAT_CUSTOM and fill in the name of the image that is 
generated by U-Boot itself (which could be u-boot.nand). In this case, you must 
make sure yourself that U-Boot's "make all" target builds this image.


> 
> ps i cant write message to buildroot@lists.buildroot.orgб i get a
> message "Undelivered Mail Returned to Sender"

  lists.buildroot.org is only the website. The mail address is 
buildroot@buildroot.org (or .net, or buildroot@busybox.net, they all end up at 
the same place).

  Regards,
  Arnout

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