projects / J-u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| fe8c2806 WD |
1 | /* |
| 2 | * (C) Copyright 2000 | |
| 3 | * Wolfgang Denk, DENX Software Engineering, [email protected]. | |
| 4 | * | |
| 5 | * See file CREDITS for list of people who contributed to this | |
| 6 | * project. | |
| 7 | * | |
| 8 | * This program is free software; you can redistribute it and/or | |
| 9 | * modify it under the terms of the GNU General Public License as | |
| 10 | * published by the Free Software Foundation; either version 2 of | |
| 11 | * the License, or (at your option) any later version. | |
| 12 | * | |
| 13 | * This program is distributed in the hope that it will be useful, | |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 16 | * GNU General Public License for more details. | |
| 17 | * | |
| 18 | * You should have received a copy of the GNU General Public License | |
| 19 | * along with this program; if not, write to the Free Software | |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
| 21 | * MA 02111-1307 USA | |
| 22 | */ | |
| 23 | ||
| 24 | /* | |
| 25 | * Most of the following information was derived from the document | |
| 26 | * "Information Technology - AT Attachment-3 Interface (ATA-3)" | |
| 27 | * which can be found at: | |
| 28 | * http://www.dt.wdc.com/ata/ata-3/ata3r5v.zip | |
| 29 | * ftp://poctok.iae.nsk.su/pub/asm/Documents/IDE/ATA3R5V.ZIP | |
| 30 | * ftp://ftp.fee.vutbr.cz/pub/doc/io/ata/ata-3/ata3r5v.zip | |
| 31 | */ | |
| 32 | ||
| 33 | #ifndef _ATA_H | |
| 34 | #define _ATA_H | |
| 35 | ||
| 36 | /* Register addressing depends on the hardware design; for instance, | |
| 37 | * 8-bit (register) and 16-bit (data) accesses might use different | |
| 38 | * address spaces. This is implemented by the following definitions. | |
| 39 | */ | |
| 40 | ||
| 41 | #define ATA_IO_DATA(x) (CFG_ATA_DATA_OFFSET+(x)) | |
| 42 | #define ATA_IO_REG(x) (CFG_ATA_REG_OFFSET +(x)) | |
| 43 | #define ATA_IO_ALT(x) (CFG_ATA_ALT_OFFSET +(x)) | |
| 44 | ||
| 45 | /* | |
| 46 | * I/O Register Descriptions | |
| 47 | */ | |
| 48 | #define ATA_DATA_REG ATA_IO_DATA(0) | |
| 49 | #define ATA_ERROR_REG ATA_IO_REG(1) | |
| 50 | #define ATA_SECT_CNT ATA_IO_REG(2) | |
| 51 | #define ATA_SECT_NUM ATA_IO_REG(3) | |
| 52 | #define ATA_CYL_LOW ATA_IO_REG(4) | |
| 53 | #define ATA_CYL_HIGH ATA_IO_REG(5) | |
| 54 | #define ATA_DEV_HD ATA_IO_REG(6) | |
| 55 | #define ATA_COMMAND ATA_IO_REG(7) | |
| 56 | #define ATA_STATUS ATA_COMMAND | |
| 57 | #define ATA_DEV_CTL ATA_IO_ALT(6) | |
| 58 | #define ATA_LBA_LOW ATA_SECT_NUM | |
| 59 | #define ATA_LBA_MID ATA_CYL_LOW | |
| 60 | #define ATA_LBA_HIGH ATA_CYL_HIGH | |
| 61 | #define ATA_LBA_SEL ATA_DEV_CTL | |
| 62 | ||
| 63 | /* | |
| 64 | * Status register bits | |
| 65 | */ | |
| 66 | #define ATA_STAT_BUSY 0x80 /* Device Busy */ | |
| 67 | #define ATA_STAT_READY 0x40 /* Device Ready */ | |
| 68 | #define ATA_STAT_FAULT 0x20 /* Device Fault */ | |
| 69 | #define ATA_STAT_SEEK 0x10 /* Device Seek Complete */ | |
| 70 | #define ATA_STAT_DRQ 0x08 /* Data Request (ready) */ | |
| 71 | #define ATA_STAT_CORR 0x04 /* Corrected Data Error */ | |
| 72 | #define ATA_STAT_INDEX 0x02 /* Vendor specific */ | |
| 73 | #define ATA_STAT_ERR 0x01 /* Error */ | |
| 74 | ||
| 75 | /* | |
| 76 | * Device / Head Register Bits | |
| 77 | */ | |
| 78 | #define ATA_DEVICE(x) ((x & 1)<<4) | |
| 79 | #define ATA_LBA 0xE0 | |
| 80 | ||
| 81 | /* | |
| 82 | * ATA Commands (only mandatory commands listed here) | |
| 83 | */ | |
| 84 | #define ATA_CMD_READ 0x20 /* Read Sectors (with retries) */ | |
| 85 | #define ATA_CMD_READN 0x21 /* Read Sectors ( no retries) */ | |
| 86 | #define ATA_CMD_WRITE 0x30 /* Write Sectores (with retries)*/ | |
| 87 | #define ATA_CMD_WRITEN 0x31 /* Write Sectors ( no retries)*/ | |
| 88 | #define ATA_CMD_VRFY 0x40 /* Read Verify (with retries) */ | |
| 89 | #define ATA_CMD_VRFYN 0x41 /* Read verify ( no retries) */ | |
| 90 | #define ATA_CMD_SEEK 0x70 /* Seek */ | |
| 91 | #define ATA_CMD_DIAG 0x90 /* Execute Device Diagnostic */ | |
| 92 | #define ATA_CMD_INIT 0x91 /* Initialize Device Parameters */ | |
| 93 | #define ATA_CMD_RD_MULT 0xC4 /* Read Multiple */ | |
| 94 | #define ATA_CMD_WR_MULT 0xC5 /* Write Multiple */ | |
| 95 | #define ATA_CMD_SETMULT 0xC6 /* Set Multiple Mode */ | |
| 96 | #define ATA_CMD_RD_DMA 0xC8 /* Read DMA (with retries) */ | |
| 97 | #define ATA_CMD_RD_DMAN 0xC9 /* Read DMS ( no retries) */ | |
| 98 | #define ATA_CMD_WR_DMA 0xCA /* Write DMA (with retries) */ | |
| 99 | #define ATA_CMD_WR_DMAN 0xCB /* Write DMA ( no retires) */ | |
| 100 | #define ATA_CMD_IDENT 0xEC /* Identify Device */ | |
| 101 | #define ATA_CMD_SETF 0xEF /* Set Features */ | |
| 102 | #define ATA_CMD_CHK_PWR 0xE5 /* Check Power Mode */ | |
| 103 | ||
| 104 | /* | |
| 105 | * ATAPI Commands | |
| 106 | */ | |
| 107 | #define ATAPI_CMD_IDENT 0xA1 /* Identify AT Atachment Packed Interface Device */ | |
| 108 | #define ATAPI_CMD_PACKET 0xA0 /* Packed Command */ | |
| 109 | ||
| 110 | ||
| 111 | #define ATAPI_CMD_INQUIRY 0x12 | |
| 112 | #define ATAPI_CMD_REQ_SENSE 0x03 | |
| 113 | #define ATAPI_CMD_READ_CAP 0x25 | |
| 114 | #define ATAPI_CMD_START_STOP 0x1B | |
| 115 | #define ATAPI_CMD_READ_12 0xA8 | |
| 116 | ||
| 117 | ||
| 118 | #define ATA_GET_ERR() inb(ATA_STATUS) | |
| 119 | #define ATA_GET_STAT() inb(ATA_STATUS) | |
| 120 | #define ATA_OK_STAT(stat,good,bad) (((stat)&((good)|(bad)))==(good)) | |
| 121 | #define ATA_BAD_R_STAT (ATA_STAT_BUSY | ATA_STAT_ERR) | |
| 122 | #define ATA_BAD_W_STAT (ATA_BAD_R_STAT | ATA_STAT_FAULT) | |
| 123 | #define ATA_BAD_STAT (ATA_BAD_R_STAT | ATA_STAT_DRQ) | |
| 124 | #define ATA_DRIVE_READY (ATA_READY_STAT | ATA_STAT_SEEK) | |
| 125 | #define ATA_DATA_READY (ATA_STAT_DRQ) | |
| 126 | ||
| 127 | #define ATA_BLOCKSIZE 512 /* bytes */ | |
| 128 | #define ATA_BLOCKSHIFT 9 /* 2 ^ ATA_BLOCKSIZESHIFT = 512 */ | |
| 129 | #define ATA_SECTORWORDS (512 / sizeof(unsigned long)) | |
| 130 | ||
| 131 | #ifndef ATA_RESET_TIME | |
| 132 | #define ATA_RESET_TIME 60 /* spec allows up to 31 seconds */ | |
| 133 | #endif | |
| 134 | ||
| 135 | /* ------------------------------------------------------------------------- */ | |
| 136 | ||
| 137 | /* | |
| 138 | * structure returned by ATA_CMD_IDENT, as per ANSI ATA2 rev.2f spec | |
| 139 | */ | |
| 140 | typedef struct hd_driveid { | |
| 141 | unsigned short config; /* lots of obsolete bit flags */ | |
| 142 | unsigned short cyls; /* "physical" cyls */ | |
| 143 | unsigned short reserved2; /* reserved (word 2) */ | |
| 144 | unsigned short heads; /* "physical" heads */ | |
| 145 | unsigned short track_bytes; /* unformatted bytes per track */ | |
| 146 | unsigned short sector_bytes; /* unformatted bytes per sector */ | |
| 147 | unsigned short sectors; /* "physical" sectors per track */ | |
| 148 | unsigned short vendor0; /* vendor unique */ | |
| 149 | unsigned short vendor1; /* vendor unique */ | |
| 150 | unsigned short vendor2; /* vendor unique */ | |
| 151 | unsigned char serial_no[20]; /* 0 = not_specified */ | |
| 152 | unsigned short buf_type; | |
| 153 | unsigned short buf_size; /* 512 byte increments; 0 = not_specified */ | |
| 154 | unsigned short ecc_bytes; /* for r/w long cmds; 0 = not_specified */ | |
| 155 | unsigned char fw_rev[8]; /* 0 = not_specified */ | |
| 156 | unsigned char model[40]; /* 0 = not_specified */ | |
| 157 | unsigned char max_multsect; /* 0=not_implemented */ | |
| 158 | unsigned char vendor3; /* vendor unique */ | |
| 159 | unsigned short dword_io; /* 0=not_implemented; 1=implemented */ | |
| 160 | unsigned char vendor4; /* vendor unique */ | |
| 161 | unsigned char capability; /* bits 0:DMA 1:LBA 2:IORDYsw 3:IORDYsup*/ | |
| 162 | unsigned short reserved50; /* reserved (word 50) */ | |
| 163 | unsigned char vendor5; /* vendor unique */ | |
| 164 | unsigned char tPIO; /* 0=slow, 1=medium, 2=fast */ | |
| 165 | unsigned char vendor6; /* vendor unique */ | |
| 166 | unsigned char tDMA; /* 0=slow, 1=medium, 2=fast */ | |
| 167 | unsigned short field_valid; /* bits 0:cur_ok 1:eide_ok */ | |
| 168 | unsigned short cur_cyls; /* logical cylinders */ | |
| 169 | unsigned short cur_heads; /* logical heads */ | |
| 170 | unsigned short cur_sectors; /* logical sectors per track */ | |
| 171 | unsigned short cur_capacity0; /* logical total sectors on drive */ | |
| 172 | unsigned short cur_capacity1; /* (2 words, misaligned int) */ | |
| 173 | unsigned char multsect; /* current multiple sector count */ | |
| 174 | unsigned char multsect_valid; /* when (bit0==1) multsect is ok */ | |
| 175 | unsigned int lba_capacity; /* total number of sectors */ | |
| 176 | unsigned short dma_1word; /* single-word dma info */ | |
| 177 | unsigned short dma_mword; /* multiple-word dma info */ | |
| 178 | unsigned short eide_pio_modes; /* bits 0:mode3 1:mode4 */ | |
| 179 | unsigned short eide_dma_min; /* min mword dma cycle time (ns) */ | |
| 180 | unsigned short eide_dma_time; /* recommended mword dma cycle time (ns) */ | |
| 181 | unsigned short eide_pio; /* min cycle time (ns), no IORDY */ | |
| 182 | unsigned short eide_pio_iordy; /* min cycle time (ns), with IORDY */ | |
| 183 | unsigned short words69_70[2]; /* reserved words 69-70 */ | |
| 184 | unsigned short words71_74[4]; /* reserved words 71-74 */ | |
| 185 | unsigned short queue_depth; /* */ | |
| 186 | unsigned short words76_79[4]; /* reserved words 76-79 */ | |
| 187 | unsigned short major_rev_num; /* */ | |
| 188 | unsigned short minor_rev_num; /* */ | |
| 189 | unsigned short command_set_1; /* bits 0:Smart 1:Security 2:Removable 3:PM */ | |
| 190 | unsigned short command_set_2; /* bits 14:Smart Enabled 13:0 zero */ | |
| 191 | unsigned short cfsse; /* command set-feature supported extensions */ | |
| 192 | unsigned short cfs_enable_1; /* command set-feature enabled */ | |
| 193 | unsigned short cfs_enable_2; /* command set-feature enabled */ | |
| 194 | unsigned short csf_default; /* command set-feature default */ | |
| 195 | unsigned short dma_ultra; /* */ | |
| 196 | unsigned short word89; /* reserved (word 89) */ | |
| 197 | unsigned short word90; /* reserved (word 90) */ | |
| 198 | unsigned short CurAPMvalues; /* current APM values */ | |
| 199 | unsigned short word92; /* reserved (word 92) */ | |
| 200 | unsigned short hw_config; /* hardware config */ | |
| 201 | unsigned short words94_125[32];/* reserved words 94-125 */ | |
| 202 | unsigned short last_lun; /* reserved (word 126) */ | |
| 203 | unsigned short word127; /* reserved (word 127) */ | |
| 204 | unsigned short dlf; /* device lock function | |
| 205 | * 15:9 reserved | |
| 206 | * 8 security level 1:max 0:high | |
| 207 | * 7:6 reserved | |
| 208 | * 5 enhanced erase | |
| 209 | * 4 expire | |
| 210 | * 3 frozen | |
| 211 | * 2 locked | |
| 212 | * 1 en/disabled | |
| 213 | * 0 capability | |
| 214 | */ | |
| 215 | unsigned short csfo; /* current set features options | |
| 216 | * 15:4 reserved | |
| 217 | * 3 auto reassign | |
| 218 | * 2 reverting | |
| 219 | * 1 read-look-ahead | |
| 220 | * 0 write cache | |
| 221 | */ | |
| 222 | unsigned short words130_155[26];/* reserved vendor words 130-155 */ | |
| 223 | unsigned short word156; | |
| 224 | unsigned short words157_159[3];/* reserved vendor words 157-159 */ | |
| 225 | unsigned short words160_255[95];/* reserved words 160-255 */ | |
| 226 | } hd_driveid_t; | |
| 227 | ||
| 228 | ||
| 229 | /* | |
| 230 | * PIO Mode Configuration | |
| 231 | * | |
| 232 | * See ATA-3 (AT Attachment-3 Interface) documentation, Figure 14 / Table 21 | |
| 233 | */ | |
| 234 | ||
| 235 | typedef struct { | |
| 236 | unsigned int t_setup; /* Setup Time in [ns] or clocks */ | |
| 237 | unsigned int t_length; /* Length Time in [ns] or clocks */ | |
| 238 | unsigned int t_hold; /* Hold Time in [ns] or clocks */ | |
| 239 | } | |
| 240 | pio_config_t; | |
| 241 | ||
| 242 | #define IDE_MAX_PIO_MODE 4 /* max suppurted PIO mode */ | |
| 243 | ||
| 244 | /* ------------------------------------------------------------------------- */ | |
| 245 | ||
| 246 | #endif /* _ATA_H */ |