Lines Matching refs:DMA

8 - SSP PIO and SSP DMA data transfers.
37 The "pxa2xx_spi_master.enable_dma" field informs the driver that SSP DMA should
38 be used.  This caused the driver to acquire two DMA channels: rx_channel and
39 tx_channel.  The rx_channel has a higher DMA service priority the tx_channel.
40 See the "PXA2xx Developer Manual" section "DMA Controller".
62 	.enable_dma = 1, /* Enables NSSP DMA */
115 The "pxa2xx_spi_chip.dma_burst_size" field is used to configure PXA2xx DMA
117 the PXA2xx "Developer Manual" sections on the DMA controller and SSP Controllers
211 DMA and PIO I/O Support
213 The pxa2xx_spi driver supports both DMA and interrupt driven PIO message
214 transfers.  The driver defaults to PIO mode and DMA transfers must be enabled
215 by setting the "enable_dma" flag in the "pxa2xx_spi_master" structure.  The DMA
216 mode supports both coherent and stream based DMA mappings.
229 	use coherent DMA mode
232 	use streaming DMA mode