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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /arch/blackfin/mach-bf538/dma.c | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'arch/blackfin/mach-bf538/dma.c')
-rw-r--r-- | arch/blackfin/mach-bf538/dma.c | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/arch/blackfin/mach-bf538/dma.c b/arch/blackfin/mach-bf538/dma.c new file mode 100644 index 00000000..cce8ef5a --- /dev/null +++ b/arch/blackfin/mach-bf538/dma.c @@ -0,0 +1,141 @@ +/* + * the simple DMA Implementation for Blackfin + * + * Copyright 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 *) 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 *) 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, +}; +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; +} |