On Thursday 17 December 2009 17:48:48 Wolfgang Denk wrote: > Mike Frysinger wrote: > > like this is an optional board-specific function that probes external > > memory sizes by reading/writing to it. > > Right, with at least two purposes: detecting memroy errors, and > determining the available memory size.
the memory error checking is kind of lame. i cant imagine it catching anything useful which the board crashing doesnt already tell you -- things are screwed. > > on a Blackfin system, this is a pretty big waste. memory must always be > > Waste in terms of ... ? if it's only detecting memory, then probing all the way down to the base is a waste of time. > > mapped starting at address 0 which means once the highest address is > > validated, things can return. ignoring that, the Blackfin port has no > > relocation support, so the link time addresses are fixed. > > The memory test alone is a pretty good reason to add this. And don;t > you have boards with multiple configurations / different RAM sizes > where auto-sizing would be useful? not really, and we havent had a customer ask for this kind of functionality. we do however get people always asking for faster loading times. -mike
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