[U-Boot-Users] fdt command: can't set a value-less property

[Jerry Van Baren]

Bartlomiej Sieka wrote:
> Hello,
> 
> I'm playing with the fdt command in recent (60174746) U-Boot and I can't
> set a property that does not have a value.
> Documentation/powerpc/booting-without-of.txt" says "A property can have
> a value or not.", and fdt help suggests the same:
> fdt set    <path> <prop> [<val>]    - Set <property> [to <val>]
> 
> However, I am getting:
> 
> => fdt mknode / testnode
> => fdt list /testnode
> testnode {
> };
> => fdt set /testnode testprop
> Usage:
> fdt     - flattened device tree utility commands
> 
> => fdt list /testnode
> testnode {
> };
> 
> Setting a property with value works:
> 
> => fdt set /testnode testprop "testvalue"
> => fdt list /testnode
> testnode {
>          testprop=""testvalue"";
> };
> 
> Am I doing something wrong, or is it a bug?
> 
> Regards,
> Bartlomiej

Hi Bartlomiej,

That looks like a bug.  The cmd_fdt.c parser looks like it is insisting 
on a value (looking for three parameters to the "fdt set" subcommand).

I have not looked at the code to confirm the above hypothesis yet...

Best regards,
gvb