1 files changed, 161 insertions, 0 deletions

diff --git a/arch/blackfin/mach-bf538/dma.c b/arch/blackfin/mach-bf538/dma.c
new file mode 100644
index 000000000000..359fdaa12b8f
--- /dev/null
+++ b/arch/blackfin/mach-bf538/dma.c
@@ -0,0 +1,161 @@
+/*
+ * File:         arch/blackfin/mach-bf538/dma.c
+ * Based on:
+ * Author:
+ *
+ * Created:
+ * Description:  This file contains the simple DMA Implementation for Blackfin
+ *
+ * Modified:
+ *               Copyright 2008 Analog Devices Inc.
+ *
+ * Bugs:         Enter bugs at http://blackfin.uclinux.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#include <linux/module.h>
+
+#include <asm/blackfin.h>
+#include <asm/dma.h>
+
+struct dma_register *dma_io_base_addr[MAX_BLACKFIN_DMA_CHANNEL] = {
+        (struct dma_register *) DMA0_NEXT_DESC_PTR,
+        (struct dma_register *) DMA1_NEXT_DESC_PTR,
+        (struct dma_register *) DMA2_NEXT_DESC_PTR,
+        (struct dma_register *) DMA3_NEXT_DESC_PTR,
+        (struct dma_register *) DMA4_NEXT_DESC_PTR,
+        (struct dma_register *) DMA5_NEXT_DESC_PTR,
+        (struct dma_register *) DMA6_NEXT_DESC_PTR,
+        (struct dma_register *) DMA7_NEXT_DESC_PTR,
+        (struct dma_register *) DMA8_NEXT_DESC_PTR,
+        (struct dma_register *) DMA9_NEXT_DESC_PTR,
+        (struct dma_register *) DMA10_NEXT_DESC_PTR,
+        (struct dma_register *) DMA11_NEXT_DESC_PTR,
+        (struct dma_register *) DMA12_NEXT_DESC_PTR,
+        (struct dma_register *) DMA13_NEXT_DESC_PTR,
+        (struct dma_register *) DMA14_NEXT_DESC_PTR,
+        (struct dma_register *) DMA15_NEXT_DESC_PTR,
+        (struct dma_register *) DMA16_NEXT_DESC_PTR,
+        (struct dma_register *) DMA17_NEXT_DESC_PTR,
+        (struct dma_register *) DMA18_NEXT_DESC_PTR,
+        (struct dma_register *) DMA19_NEXT_DESC_PTR,
+        (struct dma_register *) MDMA0_D0_NEXT_DESC_PTR,
+        (struct dma_register *) MDMA0_S0_NEXT_DESC_PTR,
+        (struct dma_register *) MDMA0_D1_NEXT_DESC_PTR,
+        (struct dma_register *) MDMA0_S1_NEXT_DESC_PTR,
+        (struct dma_register *) MDMA1_D0_NEXT_DESC_PTR,
+        (struct dma_register *) MDMA1_S0_NEXT_DESC_PTR,
+        (struct dma_register *) MDMA1_D1_NEXT_DESC_PTR,
+        (struct dma_register *) MDMA1_S1_NEXT_DESC_PTR,
+};
+EXPORT_SYMBOL(dma_io_base_addr);
+
+int channel2irq(unsigned int channel)
+{
+        int ret_irq = -1;
+
+        switch (channel) {
+        case CH_PPI:
+                ret_irq = IRQ_PPI;
+                break;
+
+        case CH_UART0_RX:
+                ret_irq = IRQ_UART0_RX;
+                break;
+
+        case CH_UART0_TX:
+                ret_irq = IRQ_UART0_TX;
+                break;
+
+        case CH_UART1_RX:
+                ret_irq = IRQ_UART1_RX;
+                break;
+
+        case CH_UART1_TX:
+                ret_irq = IRQ_UART1_TX;
+                break;
+
+        case CH_UART2_RX:
+                ret_irq = IRQ_UART2_RX;
+                break;
+
+        case CH_UART2_TX:
+                ret_irq = IRQ_UART2_TX;
+                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_SPORT2_RX:
+                ret_irq = IRQ_SPORT2_RX;
+                break;
+
+        case CH_SPORT2_TX:
+                ret_irq = IRQ_SPORT2_TX;
+                break;
+
+        case CH_SPORT3_RX:
+                ret_irq = IRQ_SPORT3_RX;
+                break;
+
+        case CH_SPORT3_TX:
+                ret_irq = IRQ_SPORT3_TX;
+                break;
+
+        case CH_SPI0:
+                ret_irq = IRQ_SPI0;
+                break;
+
+        case CH_SPI1:
+                ret_irq = IRQ_SPI1;
+                break;
+
+        case CH_SPI2:
+                ret_irq = IRQ_SPI2;
+                break;
+
+        case CH_MEM_STREAM0_SRC:
+        case CH_MEM_STREAM0_DEST:
+                ret_irq = IRQ_MEM0_DMA0;
+                break;
+        case CH_MEM_STREAM1_SRC:
+        case CH_MEM_STREAM1_DEST:
+                ret_irq = IRQ_MEM0_DMA1;
+                break;
+        case CH_MEM_STREAM2_SRC:
+        case CH_MEM_STREAM2_DEST:
+                ret_irq = IRQ_MEM1_DMA0;
+                break;
+        case CH_MEM_STREAM3_SRC:
+        case CH_MEM_STREAM3_DEST:
+                ret_irq = IRQ_MEM1_DMA1;
+                break;
+        }
+        return ret_irq;
+}