Re: [RFC] [PATCH] Device Tree on ARM platform

Wolfgang Denk
2009-05-28T09:39:00Z

Dear Robert Schwebel,

In message <20090528000707.GR6805@pengutronix.de> you wrote:
>
> Until now, oftree has created more problems than it has solved for us.
> The idea works fine for well-known things like memory maps and
> interrupts. It works badly for corner cases, and embedded land is full
> of it. The effort to get the oftree stuff right is often more than a
> magnitude of order higher than the effort for the actual functionality.

Well, but isn't this also because the device tree dramatically
reduced the amount of effort to get a new board supported? We have
seen a number of cases where _only_ the device tree needed
significant efforts to get a basic BSP running on a new board.
Talking about ration of device tree efforts versus code writing
efforts is somewhat irrelevant when you ignore that the total effort
goes down. Sometimes significantly.

> That should be an alarm sign that something is wrong.

Maybe the interpretation of data?

Best regards,

Wolfgang Denk

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