From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- arch/blackfin/mach-bf538/dma.c | 141 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 141 insertions(+) create mode 100644 arch/blackfin/mach-bf538/dma.c (limited to 'arch/blackfin/mach-bf538/dma.c') diff --git a/arch/blackfin/mach-bf538/dma.c b/arch/blackfin/mach-bf538/dma.c new file mode 100644 index 000000000..cce8ef5a5 --- /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 + +#include +#include + +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; +} -- cgit v1.2.3-54-g00ecf