[PATCH v2 3/3] libertas: if_spi, driver for libertas GSPI devices

Kalle Valo kalle.valo at iki.fi
Fri Jan 9 03:05:27 EST 2009


Dan Williams <dcbw at redhat.com> writes:

> On Fri, 2009-01-02 at 19:00 -0800, Colin McCabe wrote:
>> Add initial support for libertas devices using a GSPI interface.  This has
>> been tested with the 8686.  At this time, as far as we know, GSPI firmware for
>> this device is not publicly distributable, but we expect this to change.
>> 
>> GSPI is intended to be used on embedded systems. Board-specific parameters are
>> required (see libertas_spi.h).
>
> One thing we found we *really* wanted with SDIO was the ability to reset
> the card completely, is there any ability to do that with the SPI
> interface, or do you need to rely on board-specific methods to do that?

For stlc45xx (which currently uses SPI) where's a separate power gpio
line. To reset it, put the line down, wait a bit and put it back up. I
would guess that to be a common practise, at least in the embedded
world.

-- 
Kalle Valo



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