On Tue, Jun 12, 2012 at 5:21 AM, Girish K S <girish.shivananjappa@xxxxxxxxxx> wrote: > > In the Current dwmmc driver there is support for selecting IDMAC from > the menu config option. If the support for IDMAC is enabled in the menu > config and Hardware configuration register's DMA_INTERFACE field is 0. > Still the driver will try to do the DMA initialization. > > The dw_mci_idmac_init function currently implemented returns only success > indicating that the DMA initialization is always successful. The current > patch will add a ciheck for existance of the DMA IP and allow the > DMA initialization. > > Signed-off-by: Girish K S <girish.shivananjappa@xxxxxxxxxx> > --- > drivers/mmc/host/dw_mmc.c | 11 ++++++++++- > 1 files changed, 10 insertions(+), 1 deletions(-) This looks ok in principle. I'm wondering if we should only allow dma_support == 0x01 (DW_DMA) in the IDMAC case? It's not clear from the TRM what each of the DMA values means and I only have a system with external DMA support at the moment. -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
