1 /* 2 * Copyright (C) 2005-2006 Atmel Corporation 3 * 4 * See file CREDITS for list of people who contributed to this 5 * project. 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License as 9 * published by the Free Software Foundation; either version 2 of 10 * the License, or (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 20 * MA 02111-1307 USA 21 */ 22 #ifndef __ATMEL_MCI_H__ 23 #define __ATMEL_MCI_H__ 24 25 int atmel_mci_init(void *regs); 26 27 #ifndef __ASSEMBLY__ 28 29 /* 30 * Structure for struct SoC access. 31 * Names starting with '_' are fillers. 32 */ 33 typedef struct atmel_mci { 34 /* reg Offset */ 35 u32 cr; /* 0x00 */ 36 u32 mr; /* 0x04 */ 37 u32 dtor; /* 0x08 */ 38 u32 sdcr; /* 0x0c */ 39 u32 argr; /* 0x10 */ 40 u32 cmdr; /* 0x14 */ 41 u32 blkr; /* 0x18 */ 42 u32 _1c; /* 0x1c */ 43 u32 rspr; /* 0x20 */ 44 u32 rspr1; /* 0x24 */ 45 u32 rspr2; /* 0x28 */ 46 u32 rspr3; /* 0x2c */ 47 u32 rdr; /* 0x30 */ 48 u32 tdr; /* 0x34 */ 49 u32 _38; /* 0x38 */ 50 u32 _3c; /* 0x3c */ 51 u32 sr; /* 0x40 */ 52 u32 ier; /* 0x44 */ 53 u32 idr; /* 0x48 */ 54 u32 imr; /* 0x4c */ 55 } atmel_mci_t; 56 57 #endif /* __ASSEMBLY__ */ 58 59 /* Bitfields in CR */ 60 #define MMCI_MCIEN_OFFSET 0 61 #define MMCI_MCIEN_SIZE 1 62 #define MMCI_MCIDIS_OFFSET 1 63 #define MMCI_MCIDIS_SIZE 1 64 #define MMCI_PWSEN_OFFSET 2 65 #define MMCI_PWSEN_SIZE 1 66 #define MMCI_PWSDIS_OFFSET 3 67 #define MMCI_PWSDIS_SIZE 1 68 #define MMCI_SWRST_OFFSET 7 69 #define MMCI_SWRST_SIZE 1 70 71 /* Bitfields in MR */ 72 #define MMCI_CLKDIV_OFFSET 0 73 #define MMCI_CLKDIV_SIZE 8 74 #define MMCI_PWSDIV_OFFSET 8 75 #define MMCI_PWSDIV_SIZE 3 76 #define MMCI_RDPROOF_OFFSET 11 77 #define MMCI_RDPROOF_SIZE 1 78 #define MMCI_WRPROOF_OFFSET 12 79 #define MMCI_WRPROOF_SIZE 1 80 #define MMCI_PDCPADV_OFFSET 14 81 #define MMCI_PDCPADV_SIZE 1 82 #define MMCI_PDCMODE_OFFSET 15 83 #define MMCI_PDCMODE_SIZE 1 84 #define MMCI_BLKLEN_OFFSET 16 85 #define MMCI_BLKLEN_SIZE 16 86 87 /* Bitfields in DTOR */ 88 #define MMCI_DTOCYC_OFFSET 0 89 #define MMCI_DTOCYC_SIZE 4 90 #define MMCI_DTOMUL_OFFSET 4 91 #define MMCI_DTOMUL_SIZE 3 92 93 /* Bitfields in SDCR */ 94 #define MMCI_SCDSEL_OFFSET 0 95 #define MMCI_SCDSEL_SIZE 4 96 #define MMCI_SCDBUS_OFFSET 7 97 #define MMCI_SCDBUS_SIZE 1 98 99 /* Bitfields in ARGR */ 100 #define MMCI_ARG_OFFSET 0 101 #define MMCI_ARG_SIZE 32 102 103 /* Bitfields in CMDR */ 104 #define MMCI_CMDNB_OFFSET 0 105 #define MMCI_CMDNB_SIZE 6 106 #define MMCI_RSPTYP_OFFSET 6 107 #define MMCI_RSPTYP_SIZE 2 108 #define MMCI_SPCMD_OFFSET 8 109 #define MMCI_SPCMD_SIZE 3 110 #define MMCI_OPDCMD_OFFSET 11 111 #define MMCI_OPDCMD_SIZE 1 112 #define MMCI_MAXLAT_OFFSET 12 113 #define MMCI_MAXLAT_SIZE 1 114 #define MMCI_TRCMD_OFFSET 16 115 #define MMCI_TRCMD_SIZE 2 116 #define MMCI_TRDIR_OFFSET 18 117 #define MMCI_TRDIR_SIZE 1 118 #define MMCI_TRTYP_OFFSET 19 119 #define MMCI_TRTYP_SIZE 2 120 121 /* Bitfields in BLKR */ 122 /* MMCI_BLKLEN_OFFSET/SIZE already defined in MR */ 123 #define MMCI_BCNT_OFFSET 0 124 #define MMCI_BCNT_SIZE 16 125 126 /* Bitfields in RSPRx */ 127 #define MMCI_RSP_OFFSET 0 128 #define MMCI_RSP_SIZE 32 129 130 /* Bitfields in SR/IER/IDR/IMR */ 131 #define MMCI_CMDRDY_OFFSET 0 132 #define MMCI_CMDRDY_SIZE 1 133 #define MMCI_RXRDY_OFFSET 1 134 #define MMCI_RXRDY_SIZE 1 135 #define MMCI_TXRDY_OFFSET 2 136 #define MMCI_TXRDY_SIZE 1 137 #define MMCI_BLKE_OFFSET 3 138 #define MMCI_BLKE_SIZE 1 139 #define MMCI_DTIP_OFFSET 4 140 #define MMCI_DTIP_SIZE 1 141 #define MMCI_NOTBUSY_OFFSET 5 142 #define MMCI_NOTBUSY_SIZE 1 143 #define MMCI_ENDRX_OFFSET 6 144 #define MMCI_ENDRX_SIZE 1 145 #define MMCI_ENDTX_OFFSET 7 146 #define MMCI_ENDTX_SIZE 1 147 #define MMCI_RXBUFF_OFFSET 14 148 #define MMCI_RXBUFF_SIZE 1 149 #define MMCI_TXBUFE_OFFSET 15 150 #define MMCI_TXBUFE_SIZE 1 151 #define MMCI_RINDE_OFFSET 16 152 #define MMCI_RINDE_SIZE 1 153 #define MMCI_RDIRE_OFFSET 17 154 #define MMCI_RDIRE_SIZE 1 155 #define MMCI_RCRCE_OFFSET 18 156 #define MMCI_RCRCE_SIZE 1 157 #define MMCI_RENDE_OFFSET 19 158 #define MMCI_RENDE_SIZE 1 159 #define MMCI_RTOE_OFFSET 20 160 #define MMCI_RTOE_SIZE 1 161 #define MMCI_DCRCE_OFFSET 21 162 #define MMCI_DCRCE_SIZE 1 163 #define MMCI_DTOE_OFFSET 22 164 #define MMCI_DTOE_SIZE 1 165 #define MMCI_OVRE_OFFSET 30 166 #define MMCI_OVRE_SIZE 1 167 #define MMCI_UNRE_OFFSET 31 168 #define MMCI_UNRE_SIZE 1 169 170 /* Constants for DTOMUL */ 171 #define MMCI_DTOMUL_1_CYCLE 0 172 #define MMCI_DTOMUL_16_CYCLES 1 173 #define MMCI_DTOMUL_128_CYCLES 2 174 #define MMCI_DTOMUL_256_CYCLES 3 175 #define MMCI_DTOMUL_1024_CYCLES 4 176 #define MMCI_DTOMUL_4096_CYCLES 5 177 #define MMCI_DTOMUL_65536_CYCLES 6 178 #define MMCI_DTOMUL_1048576_CYCLES 7 179 180 /* Constants for RSPTYP */ 181 #define MMCI_RSPTYP_NO_RESP 0 182 #define MMCI_RSPTYP_48_BIT_RESP 1 183 #define MMCI_RSPTYP_136_BIT_RESP 2 184 185 /* Constants for SPCMD */ 186 #define MMCI_SPCMD_NO_SPEC_CMD 0 187 #define MMCI_SPCMD_INIT_CMD 1 188 #define MMCI_SPCMD_SYNC_CMD 2 189 #define MMCI_SPCMD_INT_CMD 4 190 #define MMCI_SPCMD_INT_RESP 5 191 192 /* Constants for TRCMD */ 193 #define MMCI_TRCMD_NO_TRANS 0 194 #define MMCI_TRCMD_START_TRANS 1 195 #define MMCI_TRCMD_STOP_TRANS 2 196 197 /* Constants for TRTYP */ 198 #define MMCI_TRTYP_BLOCK 0 199 #define MMCI_TRTYP_MULTI_BLOCK 1 200 #define MMCI_TRTYP_STREAM 2 201 202 /* Bit manipulation macros */ 203 #define MMCI_BIT(name) \ 204 (1 << MMCI_##name##_OFFSET) 205 #define MMCI_BF(name,value) \ 206 (((value) & ((1 << MMCI_##name##_SIZE) - 1)) \ 207 << MMCI_##name##_OFFSET) 208 #define MMCI_BFEXT(name,value) \ 209 (((value) >> MMCI_##name##_OFFSET)\ 210 & ((1 << MMCI_##name##_SIZE) - 1)) 211 #define MMCI_BFINS(name,value,old) \ 212 (((old) & ~(((1 << MMCI_##name##_SIZE) - 1) \ 213 << MMCI_##name##_OFFSET)) \ 214 | MMCI_BF(name,value)) 215 216 #endif /* __ATMEL_MCI_H__ */ 217