On 28/04/2008, Andy Green <[EMAIL PROTECTED]> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > > Somebody in the thread at some point said: > | On 28/04/2008, Werner Almesberger <[EMAIL PROTECTED]> wrote: > |> > Basically a form of SDIO multiplexing. > |> > Other options would be SPI. > |> > |> > |> We once asked Samuel about SPI, and he said that it would be slower, > |> but still good enough. (In real life, the theoretically possible > |> maximum speed is rarely reached anyway.) > |> > |> Without digging through the Atheros driver, I don't know how much work > |> it would be to put it on SPI. If the abstraction is clean, it could be > |> very simple. If not, a pain. > | > | You'd need to also adapt the mmc/sd stack in linux/drivers/mmc/ to use > | the SPI mode because it's not supported by linux at the moment. In > | this mode different MMC commands are allowed and the state machine is > | a little different. There may already be patches available somewhere. > > I think we propose to just move WLAN interface to native SPI, leave MMC > / SD using native SDIO interface from S3C2442. So no need for > considering the SPI mode of MMC commands.
Oops sorry then. Multiplexing made me think of multiplexing on the mmc bus, which also is an allowed configuration. Regards _______________________________________________ hardware mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/hardware
