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Correct me if I am wrong, but didn't the 2.6 effort merge Linux and uCLinux?

* Richard Herveille (richard@a...) wrote:
> Correct me if I am wrong, but didn't the 2.6 effort merge Linux and uCLinux?
> 
> So it should really be the same source.

architecture independant part of MMU-less support is just a small piece of
the puzzle, you also need arch dependant and toolchain support (which is the
most pain)

now regarding the access to the peripherals in linux you normally use
ioremap which does some MMU magic in linux case and needs to do something
sane in uclinux case. this is an example of what it may change even if the
device drivers source is the same.

r,
p.

> > -----Original Message-----
> > From: openrisc-bounces@o... [mailto:openrisc-
> > bounces@o...] On Behalf Of fpga_group@y...
> > Sent: Monday, December 03, 2007 6:46 PM
> > To: openrisc@o...
> > Subject: Re: [openrisc] FPGA Board / Ethernet PHY
> > 
> > thanks for your answer..
> > 
> > > Do you mean National Semiconductor? I am not sure about uclinux,
> > 
> > yes of course, i mean national semiconductors..
> > 
> > > but there are lots of 838xx type National Semiconductor devices
> > > supported under linux 2.6.x. Perhaps you could find something similar
> > >and port it if you have or can get the datasheets. Or maybe somebody
> > >on the list has something for uclinux.
> > 
> > i also think that will be trivial..
> > 
> > > I assume you are using uclinux because you don't want MMU support?
> > 
> > i actually want to try both linux with MMU support, and uclinux withour
> > MMU suppor. Do you have any experience according this? do you
> > already run the system under linux or uclinux?
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