Newer
Older
/*
* Freescale DMA Controller
*
* Copyright 2006 Freescale Semiconductor, Inc.
*
* This software may be used and distributed according to the
* terms of the GNU Public License, Version 2, incorporated
* herein by reference.
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef _ASM_FSL_DMA_H_
#define _ASM_FSL_DMA_H_
#include <asm/types.h>
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
#ifdef CONFIG_MPC83xx
typedef struct fsl_dma {
uint mr; /* DMA mode register */
#define FSL_DMA_MR_CS 0x00000001 /* Channel start */
#define FSL_DMA_MR_CC 0x00000002 /* Channel continue */
#define FSL_DMA_MR_CTM 0x00000004 /* Channel xfer mode */
#define FSL_DMA_MR_CTM_DIRECT 0x00000004 /* Direct channel xfer mode */
#define FSL_DMA_MR_EOTIE 0x00000080 /* End-of-transfer interrupt en */
#define FSL_DMA_MR_PRC_MASK 0x00000c00 /* PCI read command */
#define FSL_DMA_MR_SAHE 0x00001000 /* Source addr hold enable */
#define FSL_DMA_MR_DAHE 0x00002000 /* Dest addr hold enable */
#define FSL_DMA_MR_SAHTS_MASK 0x0000c000 /* Source addr hold xfer size */
#define FSL_DMA_MR_DAHTS_MASK 0x00030000 /* Dest addr hold xfer size */
#define FSL_DMA_MR_EMS_EN 0x00040000 /* Ext master start en */
#define FSL_DMA_MR_IRQS 0x00080000 /* Interrupt steer */
#define FSL_DMA_MR_DMSEN 0x00100000 /* Direct mode snooping en */
#define FSL_DMA_MR_BWC_MASK 0x00e00000 /* Bandwidth/pause ctl */
#define FSL_DMA_MR_DRCNT 0x0f000000 /* DMA request count */
uint sr; /* DMA status register */
#define FSL_DMA_SR_EOCDI 0x00000001 /* End-of-chain/direct interrupt */
#define FSL_DMA_SR_EOSI 0x00000002 /* End-of-segment interrupt */
#define FSL_DMA_SR_CB 0x00000004 /* Channel busy */
#define FSL_DMA_SR_TE 0x00000080 /* Transfer error */
uint cdar; /* DMA current descriptor address register */
char res0[4];
uint sar; /* DMA source address register */
char res1[4];
uint dar; /* DMA destination address register */
char res2[4];
uint bcr; /* DMA byte count register */
uint ndar; /* DMA next descriptor address register */
uint gsr; /* DMA general status register (DMA3 ONLY!) */
char res3[84];
} fsl_dma_t;
#else
typedef struct fsl_dma {
uint mr; /* DMA mode register */
#define FSL_DMA_MR_CS 0x00000001 /* Channel start */
#define FSL_DMA_MR_CC 0x00000002 /* Channel continue */
#define FSL_DMA_MR_CTM 0x00000004 /* Channel xfer mode */
#define FSL_DMA_MR_CTM_DIRECT 0x00000004 /* Direct channel xfer mode */
#define FSL_DMA_MR_CA 0x00000008 /* Channel abort */
#define FSL_DMA_MR_CDSM 0x00000010
#define FSL_DMA_MR_XFE 0x00000020 /* Extended features en */
#define FSL_DMA_MR_EIE 0x00000040 /* Error interrupt en */
#define FSL_DMA_MR_EOLSIE 0x00000080 /* End-of-lists interrupt en */
#define FSL_DMA_MR_EOLNIE 0x00000100 /* End-of-links interrupt en */
#define FSL_DMA_MR_EOSIE 0x00000200 /* End-of-seg interrupt en */
#define FSL_DMA_MR_SRW 0x00000400 /* Single register write */
#define FSL_DMA_MR_SAHE 0x00001000 /* Source addr hold enable */
#define FSL_DMA_MR_DAHE 0x00002000 /* Dest addr hold enable */
#define FSL_DMA_MR_SAHTS_MASK 0x0000c000 /* Source addr hold xfer size */
#define FSL_DMA_MR_DAHTS_MASK 0x00030000 /* Dest addr hold xfer size */
#define FSL_DMA_MR_EMS_EN 0x00040000 /* Ext master start en */
#define FSL_DMA_MR_EMP_EN 0x00200000 /* Ext master pause en */
#define FSL_DMA_MR_BWC_MASK 0x0f000000 /* Bandwidth/pause ctl */
#define FSL_DMA_MR_BWC_DIS 0x0f000000 /* Bandwidth/pause ctl disable */
uint sr; /* DMA status register */
#define FSL_DMA_SR_EOLSI 0x00000001 /* End-of-list interrupt */
#define FSL_DMA_SR_EOSI 0x00000002 /* End-of-segment interrupt */
#define FSL_DMA_SR_CB 0x00000004 /* Channel busy */
#define FSL_DMA_SR_EOLNI 0x00000008 /* End-of-links interrupt */
#define FSL_DMA_SR_PE 0x00000010 /* Programming error */
#define FSL_DMA_SR_CH 0x00000020 /* Channel halted */
#define FSL_DMA_SR_TE 0x00000080 /* Transfer error */
char res0[4];
uint clndar; /* DMA current link descriptor address register */
uint satr; /* DMA source attributes register */
#define FSL_DMA_SATR_ESAD_MASK 0x000001ff /* Extended source addr */
#define FSL_DMA_SATR_SREAD_NO_SNOOP 0x00040000 /* Read, don't snoop */
#define FSL_DMA_SATR_SREAD_SNOOP 0x00050000 /* Read, snoop */
#define FSL_DMA_SATR_SREAD_UNLOCK 0x00070000 /* Read, unlock l2 */
#define FSL_DMA_SATR_STRAN_MASK 0x00f00000 /* Source interface */
#define FSL_DMA_SATR_SSME 0x01000000 /* Source stride en */
#define FSL_DMA_SATR_SPCIORDER 0x02000000 /* PCI transaction order */
#define FSL_DMA_SATR_STFLOWLVL_MASK 0x0c000000 /* RIO flow level */
#define FSL_DMA_SATR_SBPATRMU 0x20000000 /* Bypass ATMU */
uint sar; /* DMA source address register */
uint datr; /* DMA destination attributes register */
#define FSL_DMA_DATR_EDAD_MASK 0x000001ff /* Extended dest addr */
#define FSL_DMA_DATR_DWRITE_NO_SNOOP 0x00040000 /* Write, don't snoop */
#define FSL_DMA_DATR_DWRITE_SNOOP 0x00050000 /* Write, snoop */
#define FSL_DMA_DATR_DWRITE_ALLOC 0x00060000 /* Write, alloc l2 */
#define FSL_DMA_DATR_DWRITE_LOCK 0x00070000 /* Write, lock l2 */
#define FSL_DMA_DATR_DTRAN_MASK 0x00f00000 /* Dest interface */
#define FSL_DMA_DATR_DSME 0x01000000 /* Dest stride en */
#define FSL_DMA_DATR_DPCIORDER 0x02000000 /* PCI transaction order */
#define FSL_DMA_DATR_DTFLOWLVL_MASK 0x0c000000 /* RIO flow level */
#define FSL_DMA_DATR_DBPATRMU 0x20000000 /* Bypass ATMU */
uint dar; /* DMA destination address register */
uint bcr; /* DMA byte count register */
char res1[4];
uint nlndar; /* DMA next link descriptor address register */
char res2[8];
uint clabdar; /* DMA current List - alternate base descriptor address Register */
char res3[4];
uint nlsdar; /* DMA next list descriptor address register */
uint ssr; /* DMA source stride register */
uint dsr; /* DMA destination stride register */
char res4[56];
} fsl_dma_t;
#ifdef CONFIG_FSL_DMA
void dma_init(void);
int dmacpy(phys_addr_t dest, phys_addr_t src, phys_size_t n);
#if (defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER))
void dma_meminit(uint val, uint size);
#endif
#endif /* _ASM_DMA_H_ */