Initial import

1 files changed, 114 insertions, 0 deletions

diff --git a/arch/blackfin/mach-bf561/dma.c b/arch/blackfin/mach-bf561/dma.c
new file mode 100644
index 000000000..8ffdd6b4a
--- /dev/null
+++ b/arch/blackfin/mach-bf561/dma.c
@@ -0,0 +1,114 @@
+/*
+ * the simple DMA Implementation for Blackfin
+ *
+ * Copyright 2007-2008 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/module.h>
+
+#include <asm/blackfin.h>
+#include <asm/dma.h>
+
+struct dma_register * const dma_io_base_addr[MAX_DMA_CHANNELS] = {
+	(struct dma_register *) DMA1_0_NEXT_DESC_PTR,
+	(struct dma_register *) DMA1_1_NEXT_DESC_PTR,
+	(struct dma_register *) DMA1_2_NEXT_DESC_PTR,
+	(struct dma_register *) DMA1_3_NEXT_DESC_PTR,
+	(struct dma_register *) DMA1_4_NEXT_DESC_PTR,
+	(struct dma_register *) DMA1_5_NEXT_DESC_PTR,
+	(struct dma_register *) DMA1_6_NEXT_DESC_PTR,
+	(struct dma_register *) DMA1_7_NEXT_DESC_PTR,
+	(struct dma_register *) DMA1_8_NEXT_DESC_PTR,
+	(struct dma_register *) DMA1_9_NEXT_DESC_PTR,
+	(struct dma_register *) DMA1_10_NEXT_DESC_PTR,
+	(struct dma_register *) DMA1_11_NEXT_DESC_PTR,
+	(struct dma_register *) DMA2_0_NEXT_DESC_PTR,
+	(struct dma_register *) DMA2_1_NEXT_DESC_PTR,
+	(struct dma_register *) DMA2_2_NEXT_DESC_PTR,
+	(struct dma_register *) DMA2_3_NEXT_DESC_PTR,
+	(struct dma_register *) DMA2_4_NEXT_DESC_PTR,
+	(struct dma_register *) DMA2_5_NEXT_DESC_PTR,
+	(struct dma_register *) DMA2_6_NEXT_DESC_PTR,
+	(struct dma_register *) DMA2_7_NEXT_DESC_PTR,
+	(struct dma_register *) DMA2_8_NEXT_DESC_PTR,
+	(struct dma_register *) DMA2_9_NEXT_DESC_PTR,
+	(struct dma_register *) DMA2_10_NEXT_DESC_PTR,
+	(struct dma_register *) DMA2_11_NEXT_DESC_PTR,
+	(struct dma_register *) MDMA_D0_NEXT_DESC_PTR,
+	(struct dma_register *) MDMA_S0_NEXT_DESC_PTR,
+	(struct dma_register *) MDMA_D1_NEXT_DESC_PTR,
+	(struct dma_register *) MDMA_S1_NEXT_DESC_PTR,
+	(struct dma_register *) MDMA_D2_NEXT_DESC_PTR,
+	(struct dma_register *) MDMA_S2_NEXT_DESC_PTR,
+	(struct dma_register *) MDMA_D3_NEXT_DESC_PTR,
+	(struct dma_register *) MDMA_S3_NEXT_DESC_PTR,
+	(struct dma_register *) IMDMA_D0_NEXT_DESC_PTR,
+	(struct dma_register *) IMDMA_S0_NEXT_DESC_PTR,
+	(struct dma_register *) IMDMA_D1_NEXT_DESC_PTR,
+	(struct dma_register *) IMDMA_S1_NEXT_DESC_PTR,
+};
+EXPORT_SYMBOL(dma_io_base_addr);
+
+int channel2irq(unsigned int channel)
+{
+	int ret_irq = -1;
+
+	switch (channel) {
+	case CH_PPI0:
+		ret_irq = IRQ_PPI0;
+		break;
+	case CH_PPI1:
+		ret_irq = IRQ_PPI1;
+		break;
+	case CH_SPORT0_RX:
+		ret_irq = IRQ_SPORT0_RX;
+		break;
+	case CH_SPORT0_TX:
+		ret_irq = IRQ_SPORT0_TX;
+		break;
+	case CH_SPORT1_RX:
+		ret_irq = IRQ_SPORT1_RX;
+		break;
+	case CH_SPORT1_TX:
+		ret_irq = IRQ_SPORT1_TX;
+		break;
+	case CH_SPI:
+		ret_irq = IRQ_SPI;
+		break;
+	case CH_UART_RX:
+		ret_irq = IRQ_UART_RX;
+		break;
+	case CH_UART_TX:
+		ret_irq = IRQ_UART_TX;
+		break;
+
+	case CH_MEM_STREAM0_SRC:
+	case CH_MEM_STREAM0_DEST:
+		ret_irq = IRQ_MEM_DMA0;
+		break;
+	case CH_MEM_STREAM1_SRC:
+	case CH_MEM_STREAM1_DEST:
+		ret_irq = IRQ_MEM_DMA1;
+		break;
+	case CH_MEM_STREAM2_SRC:
+	case CH_MEM_STREAM2_DEST:
+		ret_irq = IRQ_MEM_DMA2;
+		break;
+	case CH_MEM_STREAM3_SRC:
+	case CH_MEM_STREAM3_DEST:
+		ret_irq = IRQ_MEM_DMA3;
+		break;
+
+	case CH_IMEM_STREAM0_SRC:
+	case CH_IMEM_STREAM0_DEST:
+		ret_irq = IRQ_IMEM_DMA0;
+		break;
+	case CH_IMEM_STREAM1_SRC:
+	case CH_IMEM_STREAM1_DEST:
+		ret_irq = IRQ_IMEM_DMA1;
+		break;
+	}
+	return ret_irq;
+}