[U-Boot] Adding support to Technexion TAM3517 SOM

[Wolfgang Denk]

Dear Stefano Babic,

In message <4ECDFAB9.70008 at denx.de> you wrote:
>
> In the default settings I put a basic environment, using the same
> variables that are already used on several boards - I know there is
> neither standard nor rules for a standard environment in U-Boot, but I
> find nice if different boards maintain the same behavior, using some
> quite standard commands to boot from network or from storage. I like to
> have a "net_nfs" (not important which is the chosen name) on all boards
> I work with, as well as the same commands to boot from internal storage.

There are at least a few attempts to define such standard settings.
Unfortunately they did not get really far yet, not has this been
documented yet (only a few variables like u-boot, u-boot_addr_r,
u-boot_addr, bootfile, kernel_addr_r, kernel_addr, fdtfile,
fdt_addr_r, fdt_addr, ... have been documented in the README).
More such patches are welcome.

But I agree that your settings make much more sense as they fit into a
pretty common "look and feel".

> We could use partition names as "kernel", "rootfs" to split the NAND. In
> this way, the boot command still works if the customer rearrange the
> size of partitions with the mtdparts variable. Of course, this wiorks
> only if in the kernel the mtdparts variable is parsed
> (CONFIG_MTD_CMDLINE_PARTS must be set).

This should be done indeed.  It will also be needed to support UBI /
UBIFS which I consider mandatory on NAND based devices.

Best regards,

Wolfgang Denk

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