diff options
Diffstat (limited to 'kernel/arch/blackfin/mach-bf609/dma.c')
| -rw-r--r-- | kernel/arch/blackfin/mach-bf609/dma.c | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/kernel/arch/blackfin/mach-bf609/dma.c b/kernel/arch/blackfin/mach-bf609/dma.c new file mode 100644 index 000000000..1da4b38ac --- /dev/null +++ b/kernel/arch/blackfin/mach-bf609/dma.c @@ -0,0 +1,202 @@ +/* + * the simple DMA Implementation for Blackfin + * + * Copyright 2007-2009 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 *) DMA20_NEXT_DESC_PTR, + (struct dma_register *) MDMA0_SRC_CRC0_NEXT_DESC_PTR, + (struct dma_register *) MDMA0_DEST_CRC0_NEXT_DESC_PTR, + (struct dma_register *) MDMA1_SRC_CRC1_NEXT_DESC_PTR, + (struct dma_register *) MDMA1_DEST_CRC1_NEXT_DESC_PTR, + (struct dma_register *) MDMA2_SRC_NEXT_DESC_PTR, + (struct dma_register *) MDMA2_DEST_NEXT_DESC_PTR, + (struct dma_register *) MDMA3_SRC_NEXT_DESC_PTR, + (struct dma_register *) MDMA3_DEST_NEXT_DESC_PTR, + (struct dma_register *) DMA29_NEXT_DESC_PTR, + (struct dma_register *) DMA30_NEXT_DESC_PTR, + (struct dma_register *) DMA31_NEXT_DESC_PTR, + (struct dma_register *) DMA32_NEXT_DESC_PTR, + (struct dma_register *) DMA33_NEXT_DESC_PTR, + (struct dma_register *) DMA34_NEXT_DESC_PTR, + (struct dma_register *) DMA35_NEXT_DESC_PTR, + (struct dma_register *) DMA36_NEXT_DESC_PTR, + (struct dma_register *) DMA37_NEXT_DESC_PTR, + (struct dma_register *) DMA38_NEXT_DESC_PTR, + (struct dma_register *) DMA39_NEXT_DESC_PTR, + (struct dma_register *) DMA40_NEXT_DESC_PTR, + (struct dma_register *) DMA41_NEXT_DESC_PTR, + (struct dma_register *) DMA42_NEXT_DESC_PTR, + (struct dma_register *) DMA43_NEXT_DESC_PTR, + (struct dma_register *) DMA44_NEXT_DESC_PTR, + (struct dma_register *) DMA45_NEXT_DESC_PTR, + (struct dma_register *) DMA46_NEXT_DESC_PTR, +}; +EXPORT_SYMBOL(dma_io_base_addr); + +int channel2irq(unsigned int channel) +{ + int ret_irq = -1; + + switch (channel) { + 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_SPI0_TX: + ret_irq = IRQ_SPI0_TX; + break; + case CH_SPI0_RX: + ret_irq = IRQ_SPI0_RX; + break; + case CH_SPI1_TX: + ret_irq = IRQ_SPI1_TX; + break; + case CH_SPI1_RX: + ret_irq = IRQ_SPI1_RX; + break; + case CH_RSI: + ret_irq = IRQ_RSI; + break; + case CH_SDU: + ret_irq = IRQ_SDU; + break; + case CH_LP0: + ret_irq = IRQ_LP0; + break; + case CH_LP1: + ret_irq = IRQ_LP1; + break; + case CH_LP2: + ret_irq = IRQ_LP2; + break; + case CH_LP3: + ret_irq = IRQ_LP3; + 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_EPPI0_CH0: + ret_irq = IRQ_EPPI0_CH0; + break; + case CH_EPPI0_CH1: + ret_irq = IRQ_EPPI0_CH1; + break; + case CH_EPPI1_CH0: + ret_irq = IRQ_EPPI1_CH0; + break; + case CH_EPPI1_CH1: + ret_irq = IRQ_EPPI1_CH1; + break; + case CH_EPPI2_CH0: + ret_irq = IRQ_EPPI2_CH0; + break; + case CH_EPPI2_CH1: + ret_irq = IRQ_EPPI2_CH1; + break; + case CH_PIXC_CH0: + ret_irq = IRQ_PIXC_CH0; + break; + case CH_PIXC_CH1: + ret_irq = IRQ_PIXC_CH1; + break; + case CH_PIXC_CH2: + ret_irq = IRQ_PIXC_CH2; + break; + case CH_PVP_CPDOB: + ret_irq = IRQ_PVP_CPDOB; + break; + case CH_PVP_CPDOC: + ret_irq = IRQ_PVP_CPDOC; + break; + case CH_PVP_CPSTAT: + ret_irq = IRQ_PVP_CPSTAT; + break; + case CH_PVP_CPCI: + ret_irq = IRQ_PVP_CPCI; + break; + case CH_PVP_MPDO: + ret_irq = IRQ_PVP_MPDO; + break; + case CH_PVP_MPDI: + ret_irq = IRQ_PVP_MPDI; + break; + case CH_PVP_MPSTAT: + ret_irq = IRQ_PVP_MPSTAT; + break; + case CH_PVP_MPCI: + ret_irq = IRQ_PVP_MPCI; + break; + case CH_PVP_CPDOA: + ret_irq = IRQ_PVP_CPDOA; + break; + case CH_MEM_STREAM0_SRC: + case CH_MEM_STREAM0_DEST: + ret_irq = IRQ_MDMAS0; + break; + case CH_MEM_STREAM1_SRC: + case CH_MEM_STREAM1_DEST: + ret_irq = IRQ_MDMAS1; + break; + case CH_MEM_STREAM2_SRC: + case CH_MEM_STREAM2_DEST: + ret_irq = IRQ_MDMAS2; + break; + case CH_MEM_STREAM3_SRC: + case CH_MEM_STREAM3_DEST: + ret_irq = IRQ_MDMAS3; + break; + } + return ret_irq; +} |