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Re: flash_olpcx2294_v2 package
- From: Sergei Gavrikov <sg at belvok dot com>
- To: Andrew Lunn <andrew at lunn dot ch>
- Cc: eCos patches list <ecos-patches at ecos dot sourceware dot org>
- Date: Tue, 2 Dec 2008 08:56:54 +0200
- Subject: Re: flash_olpcx2294_v2 package
- References: <20081130122309.GA15263@ubuntu.local> <20081130124943.GA16517@ubuntu.local> <20081202061808.GL27015@lunn.ch>
Andrew Lunn writes:
> On Sun, Nov 30, 2008 at 02:49:43PM +0200, Sergei Gavrikov wrote:
> > Sergei Gavrikov wrote:
> > > Hello
> > >
> > > This is flash v2 driver for Olimex LPC-X2294 boards on top of strata_v2
> > > flash driver. Tested on Olimex LPC-H2294 board. Redboot's FIS works fine
> > > with the driver.
> > >
> > > SYNOPSYS
> > >
> > > ecosconfig remove flash_olpcx2294
> > > ecosconfig add strata_v2 flash_olpcx2294_v2 flash
> > >
> > > RFC: I described and the bottom boot blocks in the driver. What is a
> > > practic, to hide or show it? It seemed for me what I could describe
> > > flash geometry and as 64 x 0x10000.
> >
> > I forgot ask about the second commentary. To compile v2 flash driver
> > it's need to define CYGARC_UNCACHED_ADDRESS macro. I put that in the
> > targets plf_io.h, but, it seems, that macro can be placed in lpc2xxx
> > variant, but, where to place the macro? I see 2 places: either var's
> > hal_cache.h or var_io.h. What will be the best a place? What is your
> > opinion?
>
> packages/hal$ find . -name "*.h" | xargs grep -l CYGARC_UNCACHED_ADDRESS
I'm sorry. I told badly about. Find? I did it :-) The main part of the
question was, variant or target io.h? It seemed for me that do tweak of
every plf_io.h is not good idea (perhaps it is a wrong guess).
I thought, if I will place the lines the below in
lpc2xxx/var/currunt/include/var_io.h
#define CYGARC_CACHED_ADDRESS(x) (x)
#define CYGARC_UNCACHED_ADDRESS(x) (x)
#define CYGARC_PHYSICAL_ADDRESS(x) (x)
#define CYGARC_VIRTUAL_ADDRESS(x) (x)
Does a chance exist to break something?
Thank you,
SErgei