1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Freescale DMA Controller 4 * 5 * Copyright 2006 Freescale Semiconductor, Inc. 6 */ 7 8 #ifndef _ASM_FSL_DMA_H_ 9 #define _ASM_FSL_DMA_H_ 10 11 #include <asm/types.h> 12 13 #ifdef CONFIG_MPC83xx 14 typedef struct fsl_dma { 15 uint mr; /* DMA mode register */ 16 #define FSL_DMA_MR_CS 0x00000001 /* Channel start */ 17 #define FSL_DMA_MR_CC 0x00000002 /* Channel continue */ 18 #define FSL_DMA_MR_CTM 0x00000004 /* Channel xfer mode */ 19 #define FSL_DMA_MR_CTM_DIRECT 0x00000004 /* Direct channel xfer mode */ 20 #define FSL_DMA_MR_EOTIE 0x00000080 /* End-of-transfer interrupt en */ 21 #define FSL_DMA_MR_PRC_MASK 0x00000c00 /* PCI read command */ 22 #define FSL_DMA_MR_SAHE 0x00001000 /* Source addr hold enable */ 23 #define FSL_DMA_MR_DAHE 0x00002000 /* Dest addr hold enable */ 24 #define FSL_DMA_MR_SAHTS_MASK 0x0000c000 /* Source addr hold xfer size */ 25 #define FSL_DMA_MR_DAHTS_MASK 0x00030000 /* Dest addr hold xfer size */ 26 #define FSL_DMA_MR_EMS_EN 0x00040000 /* Ext master start en */ 27 #define FSL_DMA_MR_IRQS 0x00080000 /* Interrupt steer */ 28 #define FSL_DMA_MR_DMSEN 0x00100000 /* Direct mode snooping en */ 29 #define FSL_DMA_MR_BWC_MASK 0x00e00000 /* Bandwidth/pause ctl */ 30 #define FSL_DMA_MR_DRCNT 0x0f000000 /* DMA request count */ 31 uint sr; /* DMA status register */ 32 #define FSL_DMA_SR_EOCDI 0x00000001 /* End-of-chain/direct interrupt */ 33 #define FSL_DMA_SR_EOSI 0x00000002 /* End-of-segment interrupt */ 34 #define FSL_DMA_SR_CB 0x00000004 /* Channel busy */ 35 #define FSL_DMA_SR_TE 0x00000080 /* Transfer error */ 36 uint cdar; /* DMA current descriptor address register */ 37 char res0[4]; 38 uint sar; /* DMA source address register */ 39 char res1[4]; 40 uint dar; /* DMA destination address register */ 41 char res2[4]; 42 uint bcr; /* DMA byte count register */ 43 uint ndar; /* DMA next descriptor address register */ 44 uint gsr; /* DMA general status register (DMA3 ONLY!) */ 45 char res3[84]; 46 } fsl_dma_t; 47 #else 48 typedef struct fsl_dma { 49 uint mr; /* DMA mode register */ 50 #define FSL_DMA_MR_CS 0x00000001 /* Channel start */ 51 #define FSL_DMA_MR_CC 0x00000002 /* Channel continue */ 52 #define FSL_DMA_MR_CTM 0x00000004 /* Channel xfer mode */ 53 #define FSL_DMA_MR_CTM_DIRECT 0x00000004 /* Direct channel xfer mode */ 54 #define FSL_DMA_MR_CA 0x00000008 /* Channel abort */ 55 #define FSL_DMA_MR_CDSM 0x00000010 56 #define FSL_DMA_MR_XFE 0x00000020 /* Extended features en */ 57 #define FSL_DMA_MR_EIE 0x00000040 /* Error interrupt en */ 58 #define FSL_DMA_MR_EOLSIE 0x00000080 /* End-of-lists interrupt en */ 59 #define FSL_DMA_MR_EOLNIE 0x00000100 /* End-of-links interrupt en */ 60 #define FSL_DMA_MR_EOSIE 0x00000200 /* End-of-seg interrupt en */ 61 #define FSL_DMA_MR_SRW 0x00000400 /* Single register write */ 62 #define FSL_DMA_MR_SAHE 0x00001000 /* Source addr hold enable */ 63 #define FSL_DMA_MR_DAHE 0x00002000 /* Dest addr hold enable */ 64 #define FSL_DMA_MR_SAHTS_MASK 0x0000c000 /* Source addr hold xfer size */ 65 #define FSL_DMA_MR_DAHTS_MASK 0x00030000 /* Dest addr hold xfer size */ 66 #define FSL_DMA_MR_EMS_EN 0x00040000 /* Ext master start en */ 67 #define FSL_DMA_MR_EMP_EN 0x00200000 /* Ext master pause en */ 68 #define FSL_DMA_MR_BWC_MASK 0x0f000000 /* Bandwidth/pause ctl */ 69 #define FSL_DMA_MR_BWC_DIS 0x0f000000 /* Bandwidth/pause ctl disable */ 70 uint sr; /* DMA status register */ 71 #define FSL_DMA_SR_EOLSI 0x00000001 /* End-of-list interrupt */ 72 #define FSL_DMA_SR_EOSI 0x00000002 /* End-of-segment interrupt */ 73 #define FSL_DMA_SR_CB 0x00000004 /* Channel busy */ 74 #define FSL_DMA_SR_EOLNI 0x00000008 /* End-of-links interrupt */ 75 #define FSL_DMA_SR_PE 0x00000010 /* Programming error */ 76 #define FSL_DMA_SR_CH 0x00000020 /* Channel halted */ 77 #define FSL_DMA_SR_TE 0x00000080 /* Transfer error */ 78 char res0[4]; 79 uint clndar; /* DMA current link descriptor address register */ 80 uint satr; /* DMA source attributes register */ 81 #define FSL_DMA_SATR_ESAD_MASK 0x000001ff /* Extended source addr */ 82 #define FSL_DMA_SATR_SREAD_NO_SNOOP 0x00040000 /* Read, don't snoop */ 83 #define FSL_DMA_SATR_SREAD_SNOOP 0x00050000 /* Read, snoop */ 84 #define FSL_DMA_SATR_SREAD_UNLOCK 0x00070000 /* Read, unlock l2 */ 85 #define FSL_DMA_SATR_STRAN_MASK 0x00f00000 /* Source interface */ 86 #define FSL_DMA_SATR_SSME 0x01000000 /* Source stride en */ 87 #define FSL_DMA_SATR_SPCIORDER 0x02000000 /* PCI transaction order */ 88 #define FSL_DMA_SATR_STFLOWLVL_MASK 0x0c000000 /* RIO flow level */ 89 #define FSL_DMA_SATR_SBPATRMU 0x20000000 /* Bypass ATMU */ 90 uint sar; /* DMA source address register */ 91 uint datr; /* DMA destination attributes register */ 92 #define FSL_DMA_DATR_EDAD_MASK 0x000001ff /* Extended dest addr */ 93 #define FSL_DMA_DATR_DWRITE_NO_SNOOP 0x00040000 /* Write, don't snoop */ 94 #define FSL_DMA_DATR_DWRITE_SNOOP 0x00050000 /* Write, snoop */ 95 #define FSL_DMA_DATR_DWRITE_ALLOC 0x00060000 /* Write, alloc l2 */ 96 #define FSL_DMA_DATR_DWRITE_LOCK 0x00070000 /* Write, lock l2 */ 97 #define FSL_DMA_DATR_DTRAN_MASK 0x00f00000 /* Dest interface */ 98 #define FSL_DMA_DATR_DSME 0x01000000 /* Dest stride en */ 99 #define FSL_DMA_DATR_DPCIORDER 0x02000000 /* PCI transaction order */ 100 #define FSL_DMA_DATR_DTFLOWLVL_MASK 0x0c000000 /* RIO flow level */ 101 #define FSL_DMA_DATR_DBPATRMU 0x20000000 /* Bypass ATMU */ 102 uint dar; /* DMA destination address register */ 103 uint bcr; /* DMA byte count register */ 104 char res1[4]; 105 uint nlndar; /* DMA next link descriptor address register */ 106 char res2[8]; 107 uint clabdar; /* DMA current List - alternate base descriptor address Register */ 108 char res3[4]; 109 uint nlsdar; /* DMA next list descriptor address register */ 110 uint ssr; /* DMA source stride register */ 111 uint dsr; /* DMA destination stride register */ 112 char res4[56]; 113 } fsl_dma_t; 114 #endif /* !CONFIG_MPC83xx */ 115 116 #ifdef CONFIG_FSL_DMA 117 void dma_init(void); 118 int dmacpy(phys_addr_t dest, phys_addr_t src, phys_size_t n); 119 #if (defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)) 120 void dma_meminit(uint val, uint size); 121 #endif 122 #endif 123 124 #endif /* _ASM_DMA_H_ */ 125