1/* 2 * Freescale DMA Controller 3 * 4 * Copyright 2006 Freescale Semiconductor, Inc. 5 * 6 * This software may be used and distributed according to the 7 * terms of the GNU Public License, Version 2, incorporated 8 * herein by reference. 9 * 10 * This program is free software; you can redistribute it and/or 11 * modify it under the terms of the GNU General Public License 12 * Version 2 as published by the Free Software Foundation. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 22 * MA 02111-1307 USA 23 */ 24 25#ifndef _ASM_FSL_DMA_H_ 26#define _ASM_FSL_DMA_H_ 27 28#include <asm/types.h> 29 30#ifdef CONFIG_MPC83xx 31typedef struct fsl_dma { 32 uint mr; /* DMA mode register */ 33#define FSL_DMA_MR_CS 0x00000001 /* Channel start */ 34#define FSL_DMA_MR_CC 0x00000002 /* Channel continue */ 35#define FSL_DMA_MR_CTM 0x00000004 /* Channel xfer mode */ 36#define FSL_DMA_MR_CTM_DIRECT 0x00000004 /* Direct channel xfer mode */ 37#define FSL_DMA_MR_EOTIE 0x00000080 /* End-of-transfer interrupt en */ 38#define FSL_DMA_MR_PRC_MASK 0x00000c00 /* PCI read command */ 39#define FSL_DMA_MR_SAHE 0x00001000 /* Source addr hold enable */ 40#define FSL_DMA_MR_DAHE 0x00002000 /* Dest addr hold enable */ 41#define FSL_DMA_MR_SAHTS_MASK 0x0000c000 /* Source addr hold xfer size */ 42#define FSL_DMA_MR_DAHTS_MASK 0x00030000 /* Dest addr hold xfer size */ 43#define FSL_DMA_MR_EMS_EN 0x00040000 /* Ext master start en */ 44#define FSL_DMA_MR_IRQS 0x00080000 /* Interrupt steer */ 45#define FSL_DMA_MR_DMSEN 0x00100000 /* Direct mode snooping en */ 46#define FSL_DMA_MR_BWC_MASK 0x00e00000 /* Bandwidth/pause ctl */ 47#define FSL_DMA_MR_DRCNT 0x0f000000 /* DMA request count */ 48 uint sr; /* DMA status register */ 49#define FSL_DMA_SR_EOCDI 0x00000001 /* End-of-chain/direct interrupt */ 50#define FSL_DMA_SR_EOSI 0x00000002 /* End-of-segment interrupt */ 51#define FSL_DMA_SR_CB 0x00000004 /* Channel busy */ 52#define FSL_DMA_SR_TE 0x00000080 /* Transfer error */ 53 uint cdar; /* DMA current descriptor address register */ 54 char res0[4]; 55 uint sar; /* DMA source address register */ 56 char res1[4]; 57 uint dar; /* DMA destination address register */ 58 char res2[4]; 59 uint bcr; /* DMA byte count register */ 60 uint ndar; /* DMA next descriptor address register */ 61 uint gsr; /* DMA general status register (DMA3 ONLY!) */ 62 char res3[84]; 63} fsl_dma_t; 64#else 65typedef struct fsl_dma { 66 uint mr; /* DMA mode register */ 67#define FSL_DMA_MR_CS 0x00000001 /* Channel start */ 68#define FSL_DMA_MR_CC 0x00000002 /* Channel continue */ 69#define FSL_DMA_MR_CTM 0x00000004 /* Channel xfer mode */ 70#define FSL_DMA_MR_CTM_DIRECT 0x00000004 /* Direct channel xfer mode */ 71#define FSL_DMA_MR_CA 0x00000008 /* Channel abort */ 72#define FSL_DMA_MR_CDSM 0x00000010 73#define FSL_DMA_MR_XFE 0x00000020 /* Extended features en */ 74#define FSL_DMA_MR_EIE 0x00000040 /* Error interrupt en */ 75#define FSL_DMA_MR_EOLSIE 0x00000080 /* End-of-lists interrupt en */ 76#define FSL_DMA_MR_EOLNIE 0x00000100 /* End-of-links interrupt en */ 77#define FSL_DMA_MR_EOSIE 0x00000200 /* End-of-seg interrupt en */ 78#define FSL_DMA_MR_SRW 0x00000400 /* Single register write */ 79#define FSL_DMA_MR_SAHE 0x00001000 /* Source addr hold enable */ 80#define FSL_DMA_MR_DAHE 0x00002000 /* Dest addr hold enable */ 81#define FSL_DMA_MR_SAHTS_MASK 0x0000c000 /* Source addr hold xfer size */ 82#define FSL_DMA_MR_DAHTS_MASK 0x00030000 /* Dest addr hold xfer size */ 83#define FSL_DMA_MR_EMS_EN 0x00040000 /* Ext master start en */ 84#define FSL_DMA_MR_EMP_EN 0x00200000 /* Ext master pause en */ 85#define FSL_DMA_MR_BWC_MASK 0x0f000000 /* Bandwidth/pause ctl */ 86#define FSL_DMA_MR_BWC_DIS 0x0f000000 /* Bandwidth/pause ctl disable */ 87 uint sr; /* DMA status register */ 88#define FSL_DMA_SR_EOLSI 0x00000001 /* End-of-list interrupt */ 89#define FSL_DMA_SR_EOSI 0x00000002 /* End-of-segment interrupt */ 90#define FSL_DMA_SR_CB 0x00000004 /* Channel busy */ 91#define FSL_DMA_SR_EOLNI 0x00000008 /* End-of-links interrupt */ 92#define FSL_DMA_SR_PE 0x00000010 /* Programming error */ 93#define FSL_DMA_SR_CH 0x00000020 /* Channel halted */ 94#define FSL_DMA_SR_TE 0x00000080 /* Transfer error */ 95 char res0[4]; 96 uint clndar; /* DMA current link descriptor address register */ 97 uint satr; /* DMA source attributes register */ 98#define FSL_DMA_SATR_ESAD_MASK 0x000001ff /* Extended source addr */ 99#define FSL_DMA_SATR_SREAD_NO_SNOOP 0x00040000 /* Read, don't snoop */ 100#define FSL_DMA_SATR_SREAD_SNOOP 0x00050000 /* Read, snoop */ 101#define FSL_DMA_SATR_SREAD_UNLOCK 0x00070000 /* Read, unlock l2 */ 102#define FSL_DMA_SATR_STRAN_MASK 0x00f00000 /* Source interface */ 103#define FSL_DMA_SATR_SSME 0x01000000 /* Source stride en */ 104#define FSL_DMA_SATR_SPCIORDER 0x02000000 /* PCI transaction order */ 105#define FSL_DMA_SATR_STFLOWLVL_MASK 0x0c000000 /* RIO flow level */ 106#define FSL_DMA_SATR_SBPATRMU 0x20000000 /* Bypass ATMU */ 107 uint sar; /* DMA source address register */ 108 uint datr; /* DMA destination attributes register */ 109#define FSL_DMA_DATR_EDAD_MASK 0x000001ff /* Extended dest addr */ 110#define FSL_DMA_DATR_DWRITE_NO_SNOOP 0x00040000 /* Write, don't snoop */ 111#define FSL_DMA_DATR_DWRITE_SNOOP 0x00050000 /* Write, snoop */ 112#define FSL_DMA_DATR_DWRITE_ALLOC 0x00060000 /* Write, alloc l2 */ 113#define FSL_DMA_DATR_DWRITE_LOCK 0x00070000 /* Write, lock l2 */ 114#define FSL_DMA_DATR_DTRAN_MASK 0x00f00000 /* Dest interface */ 115#define FSL_DMA_DATR_DSME 0x01000000 /* Dest stride en */ 116#define FSL_DMA_DATR_DPCIORDER 0x02000000 /* PCI transaction order */ 117#define FSL_DMA_DATR_DTFLOWLVL_MASK 0x0c000000 /* RIO flow level */ 118#define FSL_DMA_DATR_DBPATRMU 0x20000000 /* Bypass ATMU */ 119 uint dar; /* DMA destination address register */ 120 uint bcr; /* DMA byte count register */ 121 char res1[4]; 122 uint nlndar; /* DMA next link descriptor address register */ 123 char res2[8]; 124 uint clabdar; /* DMA current List - alternate base descriptor address Register */ 125 char res3[4]; 126 uint nlsdar; /* DMA next list descriptor address register */ 127 uint ssr; /* DMA source stride register */ 128 uint dsr; /* DMA destination stride register */ 129 char res4[56]; 130} fsl_dma_t; 131#endif /* !CONFIG_MPC83xx */ 132 133#ifdef CONFIG_FSL_DMA 134void dma_init(void); 135int dmacpy(phys_addr_t dest, phys_addr_t src, phys_size_t n); 136#if (defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)) 137void dma_meminit(uint val, uint size); 138#endif 139#endif 140 141#endif /* _ASM_DMA_H_ */ 142