| Roy Huang | 24a07a1 | 2007-07-12 22:41:45 +0800 | [diff] [blame] | 1 | /* |
| 2 | * File: arch/blackfin/mach-bf533/dma.c |
| 3 | * Based on: |
| 4 | * Author: |
| 5 | * |
| 6 | * Created: |
| 7 | * Description: This file contains the simple DMA Implementation for Blackfin |
| 8 | * |
| 9 | * Modified: |
| 10 | * Copyright 2004-2006 Analog Devices Inc. |
| 11 | * |
| 12 | * Bugs: Enter bugs at http://blackfin.uclinux.org/ |
| 13 | * |
| 14 | * This program is free software; you can redistribute it and/or modify |
| 15 | * it under the terms of the GNU General Public License as published by |
| 16 | * the Free Software Foundation; either version 2 of the License, or |
| 17 | * (at your option) any later version. |
| 18 | * |
| 19 | * This program is distributed in the hope that it will be useful, |
| 20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | * GNU General Public License for more details. |
| 23 | * |
| 24 | * You should have received a copy of the GNU General Public License |
| 25 | * along with this program; if not, see the file COPYING, or write |
| 26 | * to the Free Software Foundation, Inc., |
| 27 | * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 28 | */ |
| Bernd Schmidt | ac86a97 | 2008-04-24 05:23:31 +0800 | [diff] [blame] | 29 | #include <linux/module.h> |
| 30 | |
| Roy Huang | 24a07a1 | 2007-07-12 22:41:45 +0800 | [diff] [blame] | 31 | #include <asm/blackfin.h> |
| 32 | #include <asm/dma.h> |
| 33 | |
| Mike Frysinger | 211daf9 | 2009-01-07 23:14:39 +0800 | [diff] [blame] | 34 | struct dma_register *dma_io_base_addr[MAX_DMA_CHANNELS] = { |
| Roy Huang | 24a07a1 | 2007-07-12 22:41:45 +0800 | [diff] [blame] | 35 | (struct dma_register *) DMA0_NEXT_DESC_PTR, |
| 36 | (struct dma_register *) DMA1_NEXT_DESC_PTR, |
| 37 | (struct dma_register *) DMA2_NEXT_DESC_PTR, |
| 38 | (struct dma_register *) DMA3_NEXT_DESC_PTR, |
| 39 | (struct dma_register *) DMA4_NEXT_DESC_PTR, |
| 40 | (struct dma_register *) DMA5_NEXT_DESC_PTR, |
| 41 | (struct dma_register *) DMA6_NEXT_DESC_PTR, |
| 42 | (struct dma_register *) DMA7_NEXT_DESC_PTR, |
| 43 | (struct dma_register *) MDMA_D0_NEXT_DESC_PTR, |
| 44 | (struct dma_register *) MDMA_S0_NEXT_DESC_PTR, |
| 45 | (struct dma_register *) MDMA_D1_NEXT_DESC_PTR, |
| 46 | (struct dma_register *) MDMA_S1_NEXT_DESC_PTR, |
| 47 | }; |
| Bernd Schmidt | 7795566 | 2008-04-24 05:31:18 +0800 | [diff] [blame] | 48 | EXPORT_SYMBOL(dma_io_base_addr); |
| Roy Huang | 24a07a1 | 2007-07-12 22:41:45 +0800 | [diff] [blame] | 49 | |
| Mike Frysinger | f8ffe65 | 2007-06-21 11:34:16 +0800 | [diff] [blame] | 50 | int channel2irq(unsigned int channel) |
| Roy Huang | 24a07a1 | 2007-07-12 22:41:45 +0800 | [diff] [blame] | 51 | { |
| 52 | int ret_irq = -1; |
| 53 | |
| 54 | switch (channel) { |
| 55 | case CH_PPI: |
| 56 | ret_irq = IRQ_PPI; |
| 57 | break; |
| 58 | |
| 59 | case CH_SPORT0_RX: |
| 60 | ret_irq = IRQ_SPORT0_RX; |
| 61 | break; |
| 62 | |
| 63 | case CH_SPORT0_TX: |
| 64 | ret_irq = IRQ_SPORT0_TX; |
| 65 | break; |
| 66 | |
| 67 | case CH_SPORT1_RX: |
| 68 | ret_irq = IRQ_SPORT1_RX; |
| 69 | break; |
| 70 | |
| 71 | case CH_SPORT1_TX: |
| 72 | ret_irq = IRQ_SPORT1_TX; |
| 73 | break; |
| 74 | |
| 75 | case CH_SPI: |
| 76 | ret_irq = IRQ_SPI; |
| 77 | break; |
| 78 | |
| 79 | case CH_UART_RX: |
| 80 | ret_irq = IRQ_UART_RX; |
| 81 | break; |
| 82 | |
| 83 | case CH_UART_TX: |
| 84 | ret_irq = IRQ_UART_TX; |
| 85 | break; |
| 86 | |
| 87 | case CH_MEM_STREAM0_SRC: |
| 88 | case CH_MEM_STREAM0_DEST: |
| 89 | ret_irq = IRQ_MEM_DMA0; |
| 90 | break; |
| 91 | |
| 92 | case CH_MEM_STREAM1_SRC: |
| 93 | case CH_MEM_STREAM1_DEST: |
| 94 | ret_irq = IRQ_MEM_DMA1; |
| 95 | break; |
| 96 | } |
| 97 | return ret_irq; |
| 98 | } |