forked from Minki/linux
8b1935e6a3
Separate SH DMA headers into ones, commonly used by both drivers, and ones, specific to each of them. This will make the future development of the dmaengine driver easier. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
88 lines
2.2 KiB
C
88 lines
2.2 KiB
C
/*
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* arch/sh/include/asm/dma-sh.h
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*
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* Copyright (C) 2000 Takashi YOSHII
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* Copyright (C) 2003 Paul Mundt
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#ifndef __DMA_SH_H
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#define __DMA_SH_H
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#include <asm/dma-register.h>
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#include <cpu/dma-register.h>
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#include <cpu/dma.h>
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/* DMAOR contorl: The DMAOR access size is different by CPU.*/
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#if defined(CONFIG_CPU_SUBTYPE_SH7723) || \
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defined(CONFIG_CPU_SUBTYPE_SH7724) || \
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defined(CONFIG_CPU_SUBTYPE_SH7780) || \
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defined(CONFIG_CPU_SUBTYPE_SH7785)
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#define dmaor_read_reg(n) \
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(n ? __raw_readw(SH_DMAC_BASE1 + DMAOR) \
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: __raw_readw(SH_DMAC_BASE0 + DMAOR))
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#define dmaor_write_reg(n, data) \
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(n ? __raw_writew(data, SH_DMAC_BASE1 + DMAOR) \
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: __raw_writew(data, SH_DMAC_BASE0 + DMAOR))
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#else /* Other CPU */
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#define dmaor_read_reg(n) __raw_readw(SH_DMAC_BASE0 + DMAOR)
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#define dmaor_write_reg(n, data) __raw_writew(data, SH_DMAC_BASE0 + DMAOR)
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#endif
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static int dmte_irq_map[] __maybe_unused = {
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#if (MAX_DMA_CHANNELS >= 4)
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DMTE0_IRQ,
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DMTE0_IRQ + 1,
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DMTE0_IRQ + 2,
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DMTE0_IRQ + 3,
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#endif
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#if (MAX_DMA_CHANNELS >= 6)
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DMTE4_IRQ,
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DMTE4_IRQ + 1,
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#endif
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#if (MAX_DMA_CHANNELS >= 8)
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DMTE6_IRQ,
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DMTE6_IRQ + 1,
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#endif
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#if (MAX_DMA_CHANNELS >= 12)
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DMTE8_IRQ,
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DMTE9_IRQ,
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DMTE10_IRQ,
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DMTE11_IRQ,
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#endif
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};
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/*
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* Define the default configuration for dual address memory-memory transfer.
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* The 0x400 value represents auto-request, external->external.
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*/
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#define RS_DUAL (DM_INC | SM_INC | 0x400 | TS_INDEX2VAL(XMIT_SZ_32BIT))
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/* DMA base address */
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static u32 dma_base_addr[] __maybe_unused = {
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#if (MAX_DMA_CHANNELS >= 4)
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SH_DMAC_BASE0 + 0x00, /* channel 0 */
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SH_DMAC_BASE0 + 0x10,
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SH_DMAC_BASE0 + 0x20,
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SH_DMAC_BASE0 + 0x30,
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#endif
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#if (MAX_DMA_CHANNELS >= 6)
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SH_DMAC_BASE0 + 0x50,
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SH_DMAC_BASE0 + 0x60,
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#endif
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#if (MAX_DMA_CHANNELS >= 8)
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SH_DMAC_BASE1 + 0x00,
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SH_DMAC_BASE1 + 0x10,
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#endif
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#if (MAX_DMA_CHANNELS >= 12)
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SH_DMAC_BASE1 + 0x20,
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SH_DMAC_BASE1 + 0x30,
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SH_DMAC_BASE1 + 0x50,
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SH_DMAC_BASE1 + 0x60, /* channel 11 */
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#endif
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};
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#endif /* __DMA_SH_H */
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