Re: problem with converting from at91_spi to atmel_spi (AT91RM9200)

[David Brownell <david-b-yBeKhBN/0LDR7s880joybQ@public.gmane.org>]

On Friday 25 May 2007, Ivan Kuten wrote:
> On 25 May 2007 09:07:24 +0200
> Andrew Victor wrote:
> 
> > hi,
> > 
> > > static struct spi_board_info dk_spi_devices[] = {
> > >         ...
> > > 
> > > are broken cause all of them have chip_select = 0 ?
> > 
> > I doubt it.
> > 
> > The DK board definitely works.
> > All SAN People's RM9200-based products have DataFlash on CS0 - boot from
> > CS0, mount root filesystem (cramfs) on CS0, writable JFFS2 partition on
> > CS0.
> > 
> > That's with legacy SPI and at91_dataflash.c. (ie, CS0 under SPI
> > control).

It'd be good if someone with some rm9200 board that can boot
from DataFlash tried a version of the atmel_spi config that
leaves CS0 under control of the SPI controller ... updating
the setup code would suffice, ISTR.

Because we know that both atmel_spi and mtd_datflash behave on
other hardware, even for CS0.  And ISTR hearing they work OK
on rm9200, for other chipselects...

- Dave

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