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. Regards _______________________________________________ hardware mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/hardware
