diff options
Diffstat (limited to 'arch/arm/mach-spear13xx/spear13xx.c')
-rw-r--r-- | arch/arm/mach-spear13xx/spear13xx.c | 55 |
1 files changed, 51 insertions, 4 deletions
diff --git a/arch/arm/mach-spear13xx/spear13xx.c b/arch/arm/mach-spear13xx/spear13xx.c index b074db8..c4af775 100644 --- a/arch/arm/mach-spear13xx/spear13xx.c +++ b/arch/arm/mach-spear13xx/spear13xx.c @@ -22,16 +22,63 @@ #include <asm/hardware/gic.h> #include <asm/mach/map.h> #include <asm/smp_twd.h> +#include <mach/dma.h> #include <mach/generic.h> #include <mach/spear.h> +/* common dw_dma filter routine to be used by peripherals */ +bool dw_dma_filter(struct dma_chan *chan, void *slave) +{ + struct dw_dma_slave *dws = (struct dw_dma_slave *)slave; + + if (chan->device->dev == dws->dma_dev) { + chan->private = slave; + return true; + } else { + return false; + } +} + /* ssp device registration */ +static struct dw_dma_slave ssp_dma_param[] = { + { + /* Tx */ + .cfg_hi = DWC_CFGH_DST_PER(DMA_REQ_SSP0_TX), + .cfg_lo = 0, + .src_master = DMA_MASTER_MEMORY, + .dst_master = DMA_MASTER_SSP0, + }, { + /* Rx */ + .cfg_hi = DWC_CFGH_SRC_PER(DMA_REQ_SSP0_RX), + .cfg_lo = 0, + .src_master = DMA_MASTER_SSP0, + .dst_master = DMA_MASTER_MEMORY, + } +}; + struct pl022_ssp_controller pl022_plat_data = { .enable_dma = 1, - .dma_filter = dw_dma_generic_filter, - .dma_rx_param = "ssp0_rx", - .dma_tx_param = "ssp0_tx", - .num_chipselect = 3, + .dma_filter = dw_dma_filter, + .dma_rx_param = &ssp_dma_param[1], + .dma_tx_param = &ssp_dma_param[0], +}; + +/* CF device registration */ +struct dw_dma_slave cf_dma_priv = { + .cfg_hi = 0, + .cfg_lo = 0, + .src_master = 0, + .dst_master = 0, +}; + +/* dmac device registeration */ +struct dw_dma_platform_data dmac_plat_data = { + .nr_channels = 8, + .chan_allocation_order = CHAN_ALLOCATION_DESCENDING, + .chan_priority = CHAN_PRIORITY_DESCENDING, + .block_size = 4095U, + .nr_masters = 2, + .data_width = { 3, 3, 0, 0 }, }; void __init spear13xx_l2x0_init(void) |