[U-Boot-Users] Enabling the data size parameter for memory commands like "md"?
Hello,
I'm playing around with a day-old cvs snapshot of U-Boot, using it with "make at91rm9200dk_config". My problem is the same with 0.4.0.
From the source (and from the usage help) I understand that at least the
memory commands like "md" should accept (optional) data size parameter (.b/.w/.l) as the first parameter.
How do you enable this? In my environment they don't work: 1) argv[0] is the command itself (like "md"), not the data size parameter from where the source tries to read it and 2) if I give the data size parameter, the upper framework counts the amount of parameters to be illegal and therefore certain commands give me an error message (the short usage).
I suppose there is a #define missing? What is it? I could not quickly find it grepping the source, googling the net / mailing list archives.
Best Regards,
Pasi Huhtiniemi
Hi Pasi,
I'm playing around with a day-old cvs snapshot of U-Boot, using it with "make at91rm9200dk_config". My problem is the same with 0.4.0.
From the source (and from the usage help) I understand that at least the
memory commands like "md" should accept (optional) data size parameter (.b/.w/.l) as the first parameter.
How do you enable this? In my environment they don't work: 1) argv[0] is the command itself (like "md"), not the data size parameter from where the source tries to read it and 2) if I give the data size parameter, the upper framework counts the amount of parameters to be illegal and therefore certain commands give me an error message (the short usage).
I suppose there is a #define missing? What is it? I could not quickly find it grepping the source, googling the net / mailing list archives.
I think you misunderstood the docs. The size specification is not a parameter but rather a part of the command name - that's why the source looks at argv[0]. Check out the examples in our documentation[1].
Cheers Detlev
[1] https://www.denx.de/twiki/bin/view/DULG/UBootCmdGroupMemory#Section_5.9.2.5.
Dear Pasi,
in message Pine.LNX.4.44.0310141425340.4900-100000@melkki.cs.Helsinki.FI you wrote:
From the source (and from the usage help) I understand that at least the
memory commands like "md" should accept (optional) data size parameter (.b/.w/.l) as the first parameter.
No, this is wrong. This is NOT the first parameter, but a command qualifier.
How do you enable this? In my environment they don't work: 1) argv[0] is the command itself (like "md"), not the data size parameter from where the source tries to read it and 2) if I give the data size parameter, the upper framework counts the amount of parameters to be illegal and therefore certain commands give me an error message (the short usage).
Which is the correct reaction on incorrect command usage.
I suppose there is a #define missing? What is it? I could not quickly find it grepping the source, googling the net / mailing list archives.
Ummm... I suggest you start RTFM?
See for example http://www.denx.de/twiki/bin/view/DULG/UBootCmdGroupMemory#Section_5.9.2.3.
Best regards,
Wolfgang Denk
participants (3)
-
Detlev Zundel -
Pasi Huhtiniemi -
Wolfgang Denk