SDIO multiplexing

[Joerg Reisenweber]

Wolfgang Spraul schrieb:
> Hi there,
> we played with a number of ideas on the HW side, one of them was around
> how we can extend the lifetime of gta02, by making some fixes.
> Such as removing the glamo chip. Which would leave no SDIO for the Wi-Fi
> module.
> Do you have any ideas how this could be fixed, i.e. how we could remove
> the glamo on gta02 and still have Wi-Fi?
> Sean and I met Harald at the Open Hardware Summit conference, and he
> suggested this 'hack':
> 
> http://www.altera.com/literature/an/an509.pdf
> http://www.fairchildsemi.com/ds/FS/FSSD06.pdf
> 
> Basically a form of SDIO multiplexing.
> Other options would be SPI.
> What do you think of the multiplexing, SPI, or other ways to achieve this?
> Wolfgang
> 

So *FOR GTA04* should we plan to use "old" SDIO-IF for WLAN, or make a
new design taking in account the "fact" our future WLAN will be SPI-based?

/jOERG