| | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
| | 2 | /* |
| | 3 | * (C) Copyright 2000 |
| | 4 | * Wolfgang Denk, DENX Software Engineering, [email protected]. |
| | 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 */ |
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