MX27 libertas_sdio SDIO Interrupts vs available bitrate

[Andreas Feuersinger]

Hi Benzy Gabay,

On Fri, 30 Jul 2010 15:08:06 -0500
"Gabay, Benzy" <benzyg at ti.com> wrote:
> > I figured, it does not make any difference wheter I use DMA for data
> > transfer or not (odd?)
> If interrupts are not handled in MMC level and you are disabling DMA
> operation how then will the transfer completion is handled in that
> case?
> 

PIO transfer is used in function mxcmci_cmd_done. A while loop cycles
and calls readl until the buffer is read.
Afterwards CRC checks and stuff is done.

Enabling DMA exits prior that code section calling mxc_dma_enable.