1 files changed, 74 insertions, 0 deletions
diff --git a/arch/cris/include/arch-v10/arch/dma.h b/arch/cris/include/arch-v10/arch/dma.h
new file mode 100644
index 000000000000..ecb9dba6fa4f
--- /dev/null
+++ b/arch/cris/include/arch-v10/arch/dma.h
@@ -0,0 +1,74 @@
+/* Defines for using and allocating dma channels. */
+
+#ifndef _ASM_ARCH_DMA_H
+#define _ASM_ARCH_DMA_H
+
+#define MAX_DMA_CHANNELS	10
+
+/* dma0 and dma1 used for network (ethernet) */
+#define NETWORK_TX_DMA_NBR 0
+#define NETWORK_RX_DMA_NBR 1
+
+/* dma2 and dma3 shared by par0, scsi0, ser2 and ata */
+#define PAR0_TX_DMA_NBR 2
+#define PAR0_RX_DMA_NBR 3
+#define SCSI0_TX_DMA_NBR 2
+#define SCSI0_RX_DMA_NBR 3
+#define SER2_TX_DMA_NBR 2
+#define SER2_RX_DMA_NBR 3
+#define ATA_TX_DMA_NBR 2
+#define ATA_RX_DMA_NBR 3
+
+/* dma4 and dma5 shared by par1, scsi1, ser3 and extdma0 */
+#define PAR1_TX_DMA_NBR 4
+#define PAR1_RX_DMA_NBR 5
+#define SCSI1_TX_DMA_NBR 4
+#define SCSI1_RX_DMA_NBR 5
+#define SER3_TX_DMA_NBR 4
+#define SER3_RX_DMA_NBR 5
+#define EXTDMA0_TX_DMA_NBR 4
+#define EXTDMA0_RX_DMA_NBR 5
+
+/* dma6 and dma7 shared by ser0, extdma1 and mem2mem */
+#define SER0_TX_DMA_NBR 6
+#define SER0_RX_DMA_NBR 7
+#define EXTDMA1_TX_DMA_NBR 6
+#define EXTDMA1_RX_DMA_NBR 7
+#define MEM2MEM_TX_DMA_NBR 6
+#define MEM2MEM_RX_DMA_NBR 7
+
+/* dma8 and dma9 shared by ser1 and usb */
+#define SER1_TX_DMA_NBR 8
+#define SER1_RX_DMA_NBR 9
+#define USB_TX_DMA_NBR 8
+#define USB_RX_DMA_NBR 9
+
+#endif
+
+enum dma_owner
+{
+  dma_eth,
+  dma_ser0,
+  dma_ser1, /* Async and sync */
+  dma_ser2,
+  dma_ser3, /* Async and sync */
+  dma_ata,
+  dma_par0,
+  dma_par1,
+  dma_ext0,
+  dma_ext1,
+  dma_int6,
+  dma_int7,
+  dma_usb,
+  dma_scsi0,
+  dma_scsi1
+};
+
+/* Masks used by cris_request_dma options: */
+#define DMA_VERBOSE_ON_ERROR    (1<<0)
+#define DMA_PANIC_ON_ERROR     ((1<<1)|DMA_VERBOSE_ON_ERROR)
+
+int cris_request_dma(unsigned int dmanr, const char * device_id,
+                     unsigned options, enum dma_owner owner);
+
+void cris_free_dma(unsigned int dmanr, const char * device_id);