1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * (C) Copyright 2000 4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 5 */ 6 7 /* 8 * Most of the following information was derived from the document 9 * "Information Technology - AT Attachment-3 Interface (ATA-3)", 10 * ANSI X3.298-1997. 11 */ 12 13 #ifndef _ATA_H 14 #define _ATA_H 15 16 #include <libata.h> 17 18 /* Register addressing depends on the hardware design; for instance, 19 * 8-bit (register) and 16-bit (data) accesses might use different 20 * address spaces. This is implemented by the following definitions. 21 */ 22 #ifndef CONFIG_SYS_ATA_STRIDE 23 #define CONFIG_SYS_ATA_STRIDE 1 24 #endif 25 26 #define ATA_IO_DATA(x) (CONFIG_SYS_ATA_DATA_OFFSET+((x) * CONFIG_SYS_ATA_STRIDE)) 27 #define ATA_IO_REG(x) (CONFIG_SYS_ATA_REG_OFFSET +((x) * CONFIG_SYS_ATA_STRIDE)) 28 #define ATA_IO_ALT(x) (CONFIG_SYS_ATA_ALT_OFFSET +((x) * CONFIG_SYS_ATA_STRIDE)) 29 30 /* 31 * I/O Register Descriptions 32 */ 33 #define ATA_DATA_REG ATA_IO_DATA(0) 34 #define ATA_ERROR_REG ATA_IO_REG(1) 35 #define ATA_SECT_CNT ATA_IO_REG(2) 36 #define ATA_SECT_NUM ATA_IO_REG(3) 37 #define ATA_CYL_LOW ATA_IO_REG(4) 38 #define ATA_CYL_HIGH ATA_IO_REG(5) 39 #define ATA_DEV_HD ATA_IO_REG(6) 40 #define ATA_COMMAND ATA_IO_REG(7) 41 #define ATA_DATA_EVEN ATA_IO_REG(8) 42 #define ATA_DATA_ODD ATA_IO_REG(9) 43 #define ATA_STATUS ATA_COMMAND 44 #define ATA_DEV_CTL ATA_IO_ALT(6) 45 #define ATA_LBA_LOW ATA_SECT_NUM 46 #define ATA_LBA_MID ATA_CYL_LOW 47 #define ATA_LBA_HIGH ATA_CYL_HIGH 48 #define ATA_LBA_SEL ATA_DEV_CTL 49 50 /* 51 * Status register bits 52 */ 53 #define ATA_STAT_BUSY 0x80 /* Device Busy */ 54 #define ATA_STAT_READY 0x40 /* Device Ready */ 55 #define ATA_STAT_FAULT 0x20 /* Device Fault */ 56 #define ATA_STAT_SEEK 0x10 /* Device Seek Complete */ 57 #define ATA_STAT_DRQ 0x08 /* Data Request (ready) */ 58 #define ATA_STAT_CORR 0x04 /* Corrected Data Error */ 59 #define ATA_STAT_INDEX 0x02 /* Vendor specific */ 60 #define ATA_STAT_ERR 0x01 /* Error */ 61 62 /* 63 * Device / Head Register Bits 64 */ 65 #ifndef ATA_DEVICE 66 #define ATA_DEVICE(x) ((x & 1)<<4) 67 #endif /* ATA_DEVICE */ 68 #define ATA_LBA 0xE0 69 70 /* 71 * ATAPI Commands 72 */ 73 #define ATAPI_CMD_INQUIRY 0x12 74 #define ATAPI_CMD_REQ_SENSE 0x03 75 #define ATAPI_CMD_READ_CAP 0x25 76 #define ATAPI_CMD_START_STOP 0x1B 77 #define ATAPI_CMD_READ_12 0xA8 78 79 80 #define ATA_GET_ERR() inb(ATA_STATUS) 81 #define ATA_GET_STAT() inb(ATA_STATUS) 82 #define ATA_OK_STAT(stat,good,bad) (((stat)&((good)|(bad)))==(good)) 83 #define ATA_BAD_R_STAT (ATA_STAT_BUSY | ATA_STAT_ERR) 84 #define ATA_BAD_W_STAT (ATA_BAD_R_STAT | ATA_STAT_FAULT) 85 #define ATA_BAD_STAT (ATA_BAD_R_STAT | ATA_STAT_DRQ) 86 #define ATA_DRIVE_READY (ATA_READY_STAT | ATA_STAT_SEEK) 87 #define ATA_DATA_READY (ATA_STAT_DRQ) 88 89 #define ATA_BLOCKSIZE 512 /* bytes */ 90 #define ATA_BLOCKSHIFT 9 /* 2 ^ ATA_BLOCKSIZESHIFT = 512 */ 91 #define ATA_SECTORWORDS (512 / sizeof(uint32_t)) 92 93 #ifndef ATA_RESET_TIME 94 #define ATA_RESET_TIME 60 /* spec allows up to 31 seconds */ 95 #endif 96 97 /* ------------------------------------------------------------------------- */ 98 99 /* 100 * structure returned by ATA_CMD_IDENT, as per ANSI ATA2 rev.2f spec 101 */ 102 typedef struct hd_driveid { 103 unsigned short config; /* lots of obsolete bit flags */ 104 unsigned short cyls; /* "physical" cyls */ 105 unsigned short reserved2; /* reserved (word 2) */ 106 unsigned short heads; /* "physical" heads */ 107 unsigned short track_bytes; /* unformatted bytes per track */ 108 unsigned short sector_bytes; /* unformatted bytes per sector */ 109 unsigned short sectors; /* "physical" sectors per track */ 110 unsigned short vendor0; /* vendor unique */ 111 unsigned short vendor1; /* vendor unique */ 112 unsigned short vendor2; /* vendor unique */ 113 unsigned char serial_no[20]; /* 0 = not_specified */ 114 unsigned short buf_type; 115 unsigned short buf_size; /* 512 byte increments; 0 = not_specified */ 116 unsigned short ecc_bytes; /* for r/w long cmds; 0 = not_specified */ 117 unsigned char fw_rev[8]; /* 0 = not_specified */ 118 unsigned char model[40]; /* 0 = not_specified */ 119 unsigned char max_multsect; /* 0=not_implemented */ 120 unsigned char vendor3; /* vendor unique */ 121 unsigned short dword_io; /* 0=not_implemented; 1=implemented */ 122 unsigned char vendor4; /* vendor unique */ 123 unsigned char capability; /* bits 0:DMA 1:LBA 2:IORDYsw 3:IORDYsup*/ 124 unsigned short reserved50; /* reserved (word 50) */ 125 unsigned char vendor5; /* vendor unique */ 126 unsigned char tPIO; /* 0=slow, 1=medium, 2=fast */ 127 unsigned char vendor6; /* vendor unique */ 128 unsigned char tDMA; /* 0=slow, 1=medium, 2=fast */ 129 unsigned short field_valid; /* bits 0:cur_ok 1:eide_ok */ 130 unsigned short cur_cyls; /* logical cylinders */ 131 unsigned short cur_heads; /* logical heads */ 132 unsigned short cur_sectors; /* logical sectors per track */ 133 unsigned short cur_capacity0; /* logical total sectors on drive */ 134 unsigned short cur_capacity1; /* (2 words, misaligned int) */ 135 unsigned char multsect; /* current multiple sector count */ 136 unsigned char multsect_valid; /* when (bit0==1) multsect is ok */ 137 unsigned short lba_capacity[2];/* two words containing total number of sectors */ 138 unsigned short dma_1word; /* single-word dma info */ 139 unsigned short dma_mword; /* multiple-word dma info */ 140 unsigned short eide_pio_modes; /* bits 0:mode3 1:mode4 */ 141 unsigned short eide_dma_min; /* min mword dma cycle time (ns) */ 142 unsigned short eide_dma_time; /* recommended mword dma cycle time (ns) */ 143 unsigned short eide_pio; /* min cycle time (ns), no IORDY */ 144 unsigned short eide_pio_iordy; /* min cycle time (ns), with IORDY */ 145 unsigned short words69_70[2]; /* reserved words 69-70 */ 146 unsigned short words71_74[4]; /* reserved words 71-74 */ 147 unsigned short queue_depth; /* */ 148 unsigned short words76_79[4]; /* reserved words 76-79 */ 149 unsigned short major_rev_num; /* */ 150 unsigned short minor_rev_num; /* */ 151 unsigned short command_set_1; /* bits 0:Smart 1:Security 2:Removable 3:PM */ 152 unsigned short command_set_2; /* bits 14:Smart Enabled 13:0 zero 10:lba48 support*/ 153 unsigned short cfsse; /* command set-feature supported extensions */ 154 unsigned short cfs_enable_1; /* command set-feature enabled */ 155 unsigned short cfs_enable_2; /* command set-feature enabled */ 156 unsigned short csf_default; /* command set-feature default */ 157 unsigned short dma_ultra; /* */ 158 unsigned short word89; /* reserved (word 89) */ 159 unsigned short word90; /* reserved (word 90) */ 160 unsigned short CurAPMvalues; /* current APM values */ 161 unsigned short word92; /* reserved (word 92) */ 162 unsigned short hw_config; /* hardware config */ 163 unsigned short words94_99[6];/* reserved words 94-99 */ 164 /*unsigned long long lba48_capacity; /--* 4 16bit values containing lba 48 total number of sectors */ 165 unsigned short lba48_capacity[4]; /* 4 16bit values containing lba 48 total number of sectors */ 166 unsigned short words104_125[22];/* reserved words 104-125 */ 167 unsigned short last_lun; /* reserved (word 126) */ 168 unsigned short word127; /* reserved (word 127) */ 169 unsigned short dlf; /* device lock function 170 * 15:9 reserved 171 * 8 security level 1:max 0:high 172 * 7:6 reserved 173 * 5 enhanced erase 174 * 4 expire 175 * 3 frozen 176 * 2 locked 177 * 1 en/disabled 178 * 0 capability 179 */ 180 unsigned short csfo; /* current set features options 181 * 15:4 reserved 182 * 3 auto reassign 183 * 2 reverting 184 * 1 read-look-ahead 185 * 0 write cache 186 */ 187 unsigned short words130_155[26];/* reserved vendor words 130-155 */ 188 unsigned short word156; 189 unsigned short words157_159[3];/* reserved vendor words 157-159 */ 190 unsigned short words160_162[3];/* reserved words 160-162 */ 191 unsigned short cf_advanced_caps; 192 unsigned short words164_255[92];/* reserved words 164-255 */ 193 } hd_driveid_t; 194 195 196 /* 197 * PIO Mode Configuration 198 * 199 * See ATA-3 (AT Attachment-3 Interface) documentation, Figure 14 / Table 21 200 */ 201 202 typedef struct { 203 unsigned int t_setup; /* Setup Time in [ns] or clocks */ 204 unsigned int t_length; /* Length Time in [ns] or clocks */ 205 unsigned int t_hold; /* Hold Time in [ns] or clocks */ 206 } 207 pio_config_t; 208 209 #define IDE_MAX_PIO_MODE 4 /* max suppurted PIO mode */ 210 211 /* ------------------------------------------------------------------------- */ 212 213 #endif /* _ATA_H */ 214