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author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-12 13:25:24 -0700 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-12 13:25:24 -0700 |
commit | 82afee684fe3badaf5ee3fc5b6fda687d558bfb5 (patch) | |
tree | 295abb35451a7eb1e46d6066e536e23d1a75668b /arch/blackfin/mach-bf537/dma.c | |
parent | 068345f4a873e8b0b511e8f94a595a20e176eeff (diff) | |
parent | f4d640c9be1979a603ed017e1e03a16ba3a4d7a1 (diff) |
Merge master.kernel.org:/pub/scm/linux/kernel/git/cooloney/blackfin-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (30 commits)
Blackfin serial driver: supporting BF548-EZKIT serial port
Video Console: Blackfin doesnt support VGA console
Blackfin arch: Add peripheral io API to gpio header file
Blackfin arch: set up gpio interrupt IRQ_PJ9 for BF54x ATAPI PATA driver
Blackfin arch: add missing CONFIG_LARGE_ALLOCS when upstream merging
Blackfin arch: as pointed out by Robert P. J. Day, update the CPU_FREQ name to match current Kconfig
Blackfin arch: extract the entry point from the linked kernel
Blackfin arch: clean up some coding style issues
Blackfin arch: combine the common code of free_initrd_mem and free_initmem
Blackfin arch: Add Support for Peripheral PortMux and resouce allocation
Blackfin arch: use PAGE_SIZE when doing aligns rather than hardcoded values
Blackfin arch: fix bug set dma_address properly in dma_map_sg
Blackfin arch: Disable CACHELINE_ALIGNED_L1 for BF54x by default
Blackfin arch: Port the dm9000 driver to Blackfin by using the correct low-level io routines
Blackfin arch: There is no CDPRIO Bit in the EBIU_AMGCTL Register of BF54x arch
Blackfin arch: scrub dead code
Blackfin arch: Fix Warning add some defines in BF54x header file
Blackfin arch: add BF54x missing GPIO access functions
Blackfin arch: Some memory and code optimizations - Fix SYS_IRQS
Blackfin arch: Enable BF54x PIN/GPIO interrupts
...
Diffstat (limited to 'arch/blackfin/mach-bf537/dma.c')
-rw-r--r-- | arch/blackfin/mach-bf537/dma.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/arch/blackfin/mach-bf537/dma.c b/arch/blackfin/mach-bf537/dma.c new file mode 100644 index 00000000000..706cb97b026 --- /dev/null +++ b/arch/blackfin/mach-bf537/dma.c @@ -0,0 +1,115 @@ +/* + * File: arch/blackfin/mach-bf537/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_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; + } + return ret_irq; +} |