1/* 2 * (C) Copyright 2000 3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 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#include <libata.h> 37 38/* Register addressing depends on the hardware design; for instance, 39 * 8-bit (register) and 16-bit (data) accesses might use different 40 * address spaces. This is implemented by the following definitions. 41 */ 42#ifndef CONFIG_SYS_ATA_STRIDE 43#define CONFIG_SYS_ATA_STRIDE 1 44#endif 45 46#define ATA_IO_DATA(x) (CONFIG_SYS_ATA_DATA_OFFSET+((x) * CONFIG_SYS_ATA_STRIDE)) 47#define ATA_IO_REG(x) (CONFIG_SYS_ATA_REG_OFFSET +((x) * CONFIG_SYS_ATA_STRIDE)) 48#define ATA_IO_ALT(x) (CONFIG_SYS_ATA_ALT_OFFSET +((x) * CONFIG_SYS_ATA_STRIDE)) 49 50/* 51 * I/O Register Descriptions 52 */ 53#define ATA_DATA_REG ATA_IO_DATA(0) 54#define ATA_ERROR_REG ATA_IO_REG(1) 55#define ATA_SECT_CNT ATA_IO_REG(2) 56#define ATA_SECT_NUM ATA_IO_REG(3) 57#define ATA_CYL_LOW ATA_IO_REG(4) 58#define ATA_CYL_HIGH ATA_IO_REG(5) 59#define ATA_DEV_HD ATA_IO_REG(6) 60#define ATA_COMMAND ATA_IO_REG(7) 61#define ATA_DATA_EVEN ATA_IO_REG(8) 62#define ATA_DATA_ODD ATA_IO_REG(9) 63#define ATA_STATUS ATA_COMMAND 64#define ATA_DEV_CTL ATA_IO_ALT(6) 65#define ATA_LBA_LOW ATA_SECT_NUM 66#define ATA_LBA_MID ATA_CYL_LOW 67#define ATA_LBA_HIGH ATA_CYL_HIGH 68#define ATA_LBA_SEL ATA_DEV_CTL 69 70/* 71 * Status register bits 72 */ 73#define ATA_STAT_BUSY 0x80 /* Device Busy */ 74#define ATA_STAT_READY 0x40 /* Device Ready */ 75#define ATA_STAT_FAULT 0x20 /* Device Fault */ 76#define ATA_STAT_SEEK 0x10 /* Device Seek Complete */ 77#define ATA_STAT_DRQ 0x08 /* Data Request (ready) */ 78#define ATA_STAT_CORR 0x04 /* Corrected Data Error */ 79#define ATA_STAT_INDEX 0x02 /* Vendor specific */ 80#define ATA_STAT_ERR 0x01 /* Error */ 81 82/* 83 * Device / Head Register Bits 84 */ 85#ifndef ATA_DEVICE 86#define ATA_DEVICE(x) ((x & 1)<<4) 87#endif /* ATA_DEVICE */ 88#define ATA_LBA 0xE0 89 90/* 91 * ATA Commands (only mandatory commands listed here) 92 */ 93#define ATA_CMD_READ 0x20 /* Read Sectors (with retries) */ 94#define ATA_CMD_READN 0x21 /* Read Sectors ( no retries) */ 95#define ATA_CMD_WRITE 0x30 /* Write Sectores (with retries)*/ 96#define ATA_CMD_WRITEN 0x31 /* Write Sectors ( no retries)*/ 97#define ATA_CMD_VRFY 0x40 /* Read Verify (with retries) */ 98#define ATA_CMD_VRFYN 0x41 /* Read verify ( no retries) */ 99#define ATA_CMD_SEEK 0x70 /* Seek */ 100#define ATA_CMD_DIAG 0x90 /* Execute Device Diagnostic */ 101#define ATA_CMD_INIT 0x91 /* Initialize Device Parameters */ 102#define ATA_CMD_RD_MULT 0xC4 /* Read Multiple */ 103#define ATA_CMD_WR_MULT 0xC5 /* Write Multiple */ 104#define ATA_CMD_SETMULT 0xC6 /* Set Multiple Mode */ 105#define ATA_CMD_RD_DMA 0xC8 /* Read DMA (with retries) */ 106#define ATA_CMD_RD_DMAN 0xC9 /* Read DMS ( no retries) */ 107#define ATA_CMD_WR_DMA 0xCA /* Write DMA (with retries) */ 108#define ATA_CMD_WR_DMAN 0xCB /* Write DMA ( no retires) */ 109#define ATA_CMD_IDENT 0xEC /* Identify Device */ 110#define ATA_CMD_SETF 0xEF /* Set Features */ 111#define ATA_CMD_CHK_PWR 0xE5 /* Check Power Mode */ 112 113#define ATA_CMD_READ_EXT 0x24 /* Read Sectors (with retries) with 48bit addressing */ 114#define ATA_CMD_WRITE_EXT 0x34 /* Write Sectores (with retries) with 48bit addressing */ 115#define ATA_CMD_VRFY_EXT 0x42 /* Read Verify (with retries) with 48bit addressing */ 116 117/* 118 * ATAPI Commands 119 */ 120#define ATAPI_CMD_IDENT 0xA1 /* Identify AT Atachment Packed Interface Device */ 121#define ATAPI_CMD_PACKET 0xA0 /* Packed Command */ 122 123 124#define ATAPI_CMD_INQUIRY 0x12 125#define ATAPI_CMD_REQ_SENSE 0x03 126#define ATAPI_CMD_READ_CAP 0x25 127#define ATAPI_CMD_START_STOP 0x1B 128#define ATAPI_CMD_READ_12 0xA8 129 130 131#define ATA_GET_ERR() inb(ATA_STATUS) 132#define ATA_GET_STAT() inb(ATA_STATUS) 133#define ATA_OK_STAT(stat,good,bad) (((stat)&((good)|(bad)))==(good)) 134#define ATA_BAD_R_STAT (ATA_STAT_BUSY | ATA_STAT_ERR) 135#define ATA_BAD_W_STAT (ATA_BAD_R_STAT | ATA_STAT_FAULT) 136#define ATA_BAD_STAT (ATA_BAD_R_STAT | ATA_STAT_DRQ) 137#define ATA_DRIVE_READY (ATA_READY_STAT | ATA_STAT_SEEK) 138#define ATA_DATA_READY (ATA_STAT_DRQ) 139 140#define ATA_BLOCKSIZE 512 /* bytes */ 141#define ATA_BLOCKSHIFT 9 /* 2 ^ ATA_BLOCKSIZESHIFT = 512 */ 142#define ATA_SECTORWORDS (512 / sizeof(unsigned long)) 143 144#ifndef ATA_RESET_TIME 145#define ATA_RESET_TIME 60 /* spec allows up to 31 seconds */ 146#endif 147 148/* ------------------------------------------------------------------------- */ 149 150/* 151 * structure returned by ATA_CMD_IDENT, as per ANSI ATA2 rev.2f spec 152 */ 153typedef struct hd_driveid { 154 unsigned short config; /* lots of obsolete bit flags */ 155 unsigned short cyls; /* "physical" cyls */ 156 unsigned short reserved2; /* reserved (word 2) */ 157 unsigned short heads; /* "physical" heads */ 158 unsigned short track_bytes; /* unformatted bytes per track */ 159 unsigned short sector_bytes; /* unformatted bytes per sector */ 160 unsigned short sectors; /* "physical" sectors per track */ 161 unsigned short vendor0; /* vendor unique */ 162 unsigned short vendor1; /* vendor unique */ 163 unsigned short vendor2; /* vendor unique */ 164 unsigned char serial_no[20]; /* 0 = not_specified */ 165 unsigned short buf_type; 166 unsigned short buf_size; /* 512 byte increments; 0 = not_specified */ 167 unsigned short ecc_bytes; /* for r/w long cmds; 0 = not_specified */ 168 unsigned char fw_rev[8]; /* 0 = not_specified */ 169 unsigned char model[40]; /* 0 = not_specified */ 170 unsigned char max_multsect; /* 0=not_implemented */ 171 unsigned char vendor3; /* vendor unique */ 172 unsigned short dword_io; /* 0=not_implemented; 1=implemented */ 173 unsigned char vendor4; /* vendor unique */ 174 unsigned char capability; /* bits 0:DMA 1:LBA 2:IORDYsw 3:IORDYsup*/ 175 unsigned short reserved50; /* reserved (word 50) */ 176 unsigned char vendor5; /* vendor unique */ 177 unsigned char tPIO; /* 0=slow, 1=medium, 2=fast */ 178 unsigned char vendor6; /* vendor unique */ 179 unsigned char tDMA; /* 0=slow, 1=medium, 2=fast */ 180 unsigned short field_valid; /* bits 0:cur_ok 1:eide_ok */ 181 unsigned short cur_cyls; /* logical cylinders */ 182 unsigned short cur_heads; /* logical heads */ 183 unsigned short cur_sectors; /* logical sectors per track */ 184 unsigned short cur_capacity0; /* logical total sectors on drive */ 185 unsigned short cur_capacity1; /* (2 words, misaligned int) */ 186 unsigned char multsect; /* current multiple sector count */ 187 unsigned char multsect_valid; /* when (bit0==1) multsect is ok */ 188 unsigned int lba_capacity; /* total number of sectors */ 189 unsigned short dma_1word; /* single-word dma info */ 190 unsigned short dma_mword; /* multiple-word dma info */ 191 unsigned short eide_pio_modes; /* bits 0:mode3 1:mode4 */ 192 unsigned short eide_dma_min; /* min mword dma cycle time (ns) */ 193 unsigned short eide_dma_time; /* recommended mword dma cycle time (ns) */ 194 unsigned short eide_pio; /* min cycle time (ns), no IORDY */ 195 unsigned short eide_pio_iordy; /* min cycle time (ns), with IORDY */ 196 unsigned short words69_70[2]; /* reserved words 69-70 */ 197 unsigned short words71_74[4]; /* reserved words 71-74 */ 198 unsigned short queue_depth; /* */ 199 unsigned short words76_79[4]; /* reserved words 76-79 */ 200 unsigned short major_rev_num; /* */ 201 unsigned short minor_rev_num; /* */ 202 unsigned short command_set_1; /* bits 0:Smart 1:Security 2:Removable 3:PM */ 203 unsigned short command_set_2; /* bits 14:Smart Enabled 13:0 zero 10:lba48 support*/ 204 unsigned short cfsse; /* command set-feature supported extensions */ 205 unsigned short cfs_enable_1; /* command set-feature enabled */ 206 unsigned short cfs_enable_2; /* command set-feature enabled */ 207 unsigned short csf_default; /* command set-feature default */ 208 unsigned short dma_ultra; /* */ 209 unsigned short word89; /* reserved (word 89) */ 210 unsigned short word90; /* reserved (word 90) */ 211 unsigned short CurAPMvalues; /* current APM values */ 212 unsigned short word92; /* reserved (word 92) */ 213 unsigned short hw_config; /* hardware config */ 214 unsigned short words94_99[6];/* reserved words 94-99 */ 215 /*unsigned long long lba48_capacity; /--* 4 16bit values containing lba 48 total number of sectors */ 216 unsigned short lba48_capacity[4]; /* 4 16bit values containing lba 48 total number of sectors */ 217 unsigned short words104_125[22];/* reserved words 104-125 */ 218 unsigned short last_lun; /* reserved (word 126) */ 219 unsigned short word127; /* reserved (word 127) */ 220 unsigned short dlf; /* device lock function 221 * 15:9 reserved 222 * 8 security level 1:max 0:high 223 * 7:6 reserved 224 * 5 enhanced erase 225 * 4 expire 226 * 3 frozen 227 * 2 locked 228 * 1 en/disabled 229 * 0 capability 230 */ 231 unsigned short csfo; /* current set features options 232 * 15:4 reserved 233 * 3 auto reassign 234 * 2 reverting 235 * 1 read-look-ahead 236 * 0 write cache 237 */ 238 unsigned short words130_155[26];/* reserved vendor words 130-155 */ 239 unsigned short word156; 240 unsigned short words157_159[3];/* reserved vendor words 157-159 */ 241 unsigned short words160_162[3];/* reserved words 160-162 */ 242 unsigned short cf_advanced_caps; 243 unsigned short words164_255[92];/* reserved words 164-255 */ 244} hd_driveid_t; 245 246 247/* 248 * PIO Mode Configuration 249 * 250 * See ATA-3 (AT Attachment-3 Interface) documentation, Figure 14 / Table 21 251 */ 252 253typedef struct { 254 unsigned int t_setup; /* Setup Time in [ns] or clocks */ 255 unsigned int t_length; /* Length Time in [ns] or clocks */ 256 unsigned int t_hold; /* Hold Time in [ns] or clocks */ 257} 258pio_config_t; 259 260#define IDE_MAX_PIO_MODE 4 /* max suppurted PIO mode */ 261 262/* ------------------------------------------------------------------------- */ 263 264#endif /* _ATA_H */ 265