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Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (26 commits) sh: Convert sh to use read/update_persistent_clock sh: Move PMB debugfs entry initialization to later stage sh: Fix up flush_cache_vmap() on SMP. sh: fix up MMU reset with variable PMB mapping sizes. sh: establish PMB mappings for NUMA nodes. sh: check for existing mappings for bolted PMB entries. sh: fixed virt/phys mapping helpers for PMB. sh: make pmb iomapping configurable. sh: reworked dynamic PMB mapping. sh: Fix up cpumask_of_pcibus() for the NUMA build. serial: sh-sci: Tidy up build warnings. sh: Fix up ctrl_read/write stragglers in migor setup. serial: sh-sci: Add DMA support. dmaengine: shdma: extend .device_terminate_all() to record partial transfer sh: merge sh7722 and sh7724 DMA register definitions sh: activate runtime PM for dmaengine on sh7722 and sh7724 dmaengine: shdma: add runtime PM support. dmaengine: shdma: separate DMA headers. dmaengine: shdma: convert to platform device resources dmaengine: shdma: fix DMA error handling. ...
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Original file line number | Diff line number | Diff line change |
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/* | ||
* Common header for the legacy SH DMA driver and the new dmaengine driver | ||
* | ||
* extracted from arch/sh/include/asm/dma-sh.h: | ||
* | ||
* Copyright (C) 2000 Takashi YOSHII | ||
* Copyright (C) 2003 Paul Mundt | ||
* | ||
* This file is subject to the terms and conditions of the GNU General Public | ||
* License. See the file "COPYING" in the main directory of this archive | ||
* for more details. | ||
*/ | ||
#ifndef DMA_REGISTER_H | ||
#define DMA_REGISTER_H | ||
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/* DMA register */ | ||
#define SAR 0x00 | ||
#define DAR 0x04 | ||
#define TCR 0x08 | ||
#define CHCR 0x0C | ||
#define DMAOR 0x40 | ||
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/* DMAOR definitions */ | ||
#define DMAOR_AE 0x00000004 | ||
#define DMAOR_NMIF 0x00000002 | ||
#define DMAOR_DME 0x00000001 | ||
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/* Definitions for the SuperH DMAC */ | ||
#define REQ_L 0x00000000 | ||
#define REQ_E 0x00080000 | ||
#define RACK_H 0x00000000 | ||
#define RACK_L 0x00040000 | ||
#define ACK_R 0x00000000 | ||
#define ACK_W 0x00020000 | ||
#define ACK_H 0x00000000 | ||
#define ACK_L 0x00010000 | ||
#define DM_INC 0x00004000 | ||
#define DM_DEC 0x00008000 | ||
#define DM_FIX 0x0000c000 | ||
#define SM_INC 0x00001000 | ||
#define SM_DEC 0x00002000 | ||
#define SM_FIX 0x00003000 | ||
#define RS_IN 0x00000200 | ||
#define RS_OUT 0x00000300 | ||
#define TS_BLK 0x00000040 | ||
#define TM_BUR 0x00000020 | ||
#define CHCR_DE 0x00000001 | ||
#define CHCR_TE 0x00000002 | ||
#define CHCR_IE 0x00000004 | ||
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#endif |
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/* | ||
* Header for the new SH dmaengine driver | ||
* | ||
* Copyright (C) 2010 Guennadi Liakhovetski <g.liakhovetski@gmx.de> | ||
* | ||
* This program is free software; you can redistribute it and/or modify | ||
* it under the terms of the GNU General Public License version 2 as | ||
* published by the Free Software Foundation. | ||
*/ | ||
#ifndef ASM_DMAENGINE_H | ||
#define ASM_DMAENGINE_H | ||
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#include <linux/dmaengine.h> | ||
#include <linux/list.h> | ||
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#include <asm/dma-register.h> | ||
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#define SH_DMAC_MAX_CHANNELS 6 | ||
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enum sh_dmae_slave_chan_id { | ||
SHDMA_SLAVE_SCIF0_TX, | ||
SHDMA_SLAVE_SCIF0_RX, | ||
SHDMA_SLAVE_SCIF1_TX, | ||
SHDMA_SLAVE_SCIF1_RX, | ||
SHDMA_SLAVE_SCIF2_TX, | ||
SHDMA_SLAVE_SCIF2_RX, | ||
SHDMA_SLAVE_SCIF3_TX, | ||
SHDMA_SLAVE_SCIF3_RX, | ||
SHDMA_SLAVE_SCIF4_TX, | ||
SHDMA_SLAVE_SCIF4_RX, | ||
SHDMA_SLAVE_SCIF5_TX, | ||
SHDMA_SLAVE_SCIF5_RX, | ||
SHDMA_SLAVE_SIUA_TX, | ||
SHDMA_SLAVE_SIUA_RX, | ||
SHDMA_SLAVE_SIUB_TX, | ||
SHDMA_SLAVE_SIUB_RX, | ||
SHDMA_SLAVE_NUMBER, /* Must stay last */ | ||
}; | ||
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struct sh_dmae_slave_config { | ||
enum sh_dmae_slave_chan_id slave_id; | ||
dma_addr_t addr; | ||
u32 chcr; | ||
char mid_rid; | ||
}; | ||
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struct sh_dmae_channel { | ||
unsigned int offset; | ||
unsigned int dmars; | ||
unsigned int dmars_bit; | ||
}; | ||
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struct sh_dmae_pdata { | ||
struct sh_dmae_slave_config *slave; | ||
int slave_num; | ||
struct sh_dmae_channel *channel; | ||
int channel_num; | ||
unsigned int ts_low_shift; | ||
unsigned int ts_low_mask; | ||
unsigned int ts_high_shift; | ||
unsigned int ts_high_mask; | ||
unsigned int *ts_shift; | ||
int ts_shift_num; | ||
u16 dmaor_init; | ||
}; | ||
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struct device; | ||
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/* Used by slave DMA clients to request DMA to/from a specific peripheral */ | ||
struct sh_dmae_slave { | ||
enum sh_dmae_slave_chan_id slave_id; /* Set by the platform */ | ||
struct device *dma_dev; /* Set by the platform */ | ||
struct sh_dmae_slave_config *config; /* Set by the driver */ | ||
}; | ||
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struct sh_dmae_regs { | ||
u32 sar; /* SAR / source address */ | ||
u32 dar; /* DAR / destination address */ | ||
u32 tcr; /* TCR / transfer count */ | ||
}; | ||
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struct sh_desc { | ||
struct sh_dmae_regs hw; | ||
struct list_head node; | ||
struct dma_async_tx_descriptor async_tx; | ||
enum dma_data_direction direction; | ||
dma_cookie_t cookie; | ||
size_t partial; | ||
int chunks; | ||
int mark; | ||
}; | ||
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#endif |
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