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author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-21 09:57:55 -0700 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-21 09:57:55 -0700 |
commit | efea90a454c6bf95d489878ea366d5dff03f3fb7 (patch) | |
tree | 9eba629ea4325d67bca7e42d3fc46c346477c106 /arch/blackfin/mach-bf527/dma.c | |
parent | 2fb59d623ad85dfdb8ce03a660051743f7361896 (diff) | |
parent | d4b1d27368314ac79ae28082a0eb17b4c526bd14 (diff) |
Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/cooloney/blackfin-2.6
* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/cooloney/blackfin-2.6:
Blackfin arch: update boards files
Blackfin arch: dma add some API and cleanup bf54x DMA definition
Blackfin arch: cleanup and promote the general purpose timers api to a core blackfin component
Blackfin arch: add a cheesy install target
Blackfin arch: add functions for converting between sclks and usecs
Blackfin arch: add assembly function for doing 64bit unsigned division
Blackfin arch: -mno-fdpic works
Blackfin arch: use "char bfin_board_name[]" rather than "char *bfin_board_name" per discussion on lkml as the former uses less storage
Blackfin arch: Fixing Bug: balance calls to get_task_mm with corresponding mmput calls
Blackfin serial driver Kconfig: depend on DMA not being enabled rather than a specific DMA size
Blackfin arch: Fix bug: missing CHIPID register field definition of BF54x
Blackfin arch: Fix up /proc/cpuinfo so it is like everyone else
Blackfin arch: Optimization - no need to make additional math here
Blackfin arch: force irq_flags into the .data section
Blackfin arch BF548 defconfig: enable watchdog by default
Blackfin arch: add new processor ADSP-BF52x arch/mach support
Diffstat (limited to 'arch/blackfin/mach-bf527/dma.c')
-rw-r--r-- | arch/blackfin/mach-bf527/dma.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/arch/blackfin/mach-bf527/dma.c b/arch/blackfin/mach-bf527/dma.c new file mode 100644 index 00000000000..522de24cc39 --- /dev/null +++ b/arch/blackfin/mach-bf527/dma.c @@ -0,0 +1,115 @@ +/* + * File: arch/blackfin/mach-bf527/dma.c + * Based on: + * Author: + * + * Created: + * Description: This file contains the simple DMA Implementation for Blackfin + * + * Modified: + * Copyright 2004-2007 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 <asm/blackfin.h> +#include <asm/dma.h> + +struct dma_register *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 *) 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, +}; + +int channel2irq(unsigned int channel) +{ + int ret_irq = -1; + + switch (channel) { + case CH_PPI: + ret_irq = IRQ_PPI; + break; + + case CH_EMAC_RX: + ret_irq = IRQ_MAC_RX; + break; + + case CH_EMAC_TX: + ret_irq = IRQ_MAC_TX; + break; + + case CH_UART1_RX: + ret_irq = IRQ_UART1_RX; + break; + + case CH_UART1_TX: + ret_irq = IRQ_UART1_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_SPI: + ret_irq = IRQ_SPI; + break; + + case CH_UART0_RX: + ret_irq = IRQ_UART0_RX; + break; + + case CH_UART0_TX: + ret_irq = IRQ_UART0_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; + } + return ret_irq; +} |