| /* |
| * (C) Copyright 2000 |
| * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| * |
| * See file CREDITS for list of people who contributed to this |
| * project. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; either version 2 of |
| * the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| * MA 02111-1307 USA |
| */ |
| |
| /* |
| * Most of the following information was derived from the document |
| * "Information Technology - AT Attachment-3 Interface (ATA-3)" |
| * which can be found at: |
| * http://www.dt.wdc.com/ata/ata-3/ata3r5v.zip |
| * ftp://poctok.iae.nsk.su/pub/asm/Documents/IDE/ATA3R5V.ZIP |
| * ftp://ftp.fee.vutbr.cz/pub/doc/io/ata/ata-3/ata3r5v.zip |
| */ |
| |
| #ifndef _ATA_H |
| #define _ATA_H |
| |
| #include <libata.h> |
| |
| /* Register addressing depends on the hardware design; for instance, |
| * 8-bit (register) and 16-bit (data) accesses might use different |
| * address spaces. This is implemented by the following definitions. |
| */ |
| #ifndef CONFIG_SYS_ATA_STRIDE |
| #define CONFIG_SYS_ATA_STRIDE 1 |
| #endif |
| |
| #define ATA_IO_DATA(x) (CONFIG_SYS_ATA_DATA_OFFSET+((x) * CONFIG_SYS_ATA_STRIDE)) |
| #define ATA_IO_REG(x) (CONFIG_SYS_ATA_REG_OFFSET +((x) * CONFIG_SYS_ATA_STRIDE)) |
| #define ATA_IO_ALT(x) (CONFIG_SYS_ATA_ALT_OFFSET +((x) * CONFIG_SYS_ATA_STRIDE)) |
| |
| /* |
| * I/O Register Descriptions |
| */ |
| #define ATA_DATA_REG ATA_IO_DATA(0) |
| #define ATA_ERROR_REG ATA_IO_REG(1) |
| #define ATA_SECT_CNT ATA_IO_REG(2) |
| #define ATA_SECT_NUM ATA_IO_REG(3) |
| #define ATA_CYL_LOW ATA_IO_REG(4) |
| #define ATA_CYL_HIGH ATA_IO_REG(5) |
| #define ATA_DEV_HD ATA_IO_REG(6) |
| #define ATA_COMMAND ATA_IO_REG(7) |
| #define ATA_DATA_EVEN ATA_IO_REG(8) |
| #define ATA_DATA_ODD ATA_IO_REG(9) |
| #define ATA_STATUS ATA_COMMAND |
| #define ATA_DEV_CTL ATA_IO_ALT(6) |
| #define ATA_LBA_LOW ATA_SECT_NUM |
| #define ATA_LBA_MID ATA_CYL_LOW |
| #define ATA_LBA_HIGH ATA_CYL_HIGH |
| #define ATA_LBA_SEL ATA_DEV_CTL |
| |
| /* |
| * Status register bits |
| */ |
| #define ATA_STAT_BUSY 0x80 /* Device Busy */ |
| #define ATA_STAT_READY 0x40 /* Device Ready */ |
| #define ATA_STAT_FAULT 0x20 /* Device Fault */ |
| #define ATA_STAT_SEEK 0x10 /* Device Seek Complete */ |
| #define ATA_STAT_DRQ 0x08 /* Data Request (ready) */ |
| #define ATA_STAT_CORR 0x04 /* Corrected Data Error */ |
| #define ATA_STAT_INDEX 0x02 /* Vendor specific */ |
| #define ATA_STAT_ERR 0x01 /* Error */ |
| |
| /* |
| * Device / Head Register Bits |
| */ |
| #define ATA_DEVICE(x) ((x & 1)<<4) |
| #define ATA_LBA 0xE0 |
| |
| /* |
| * ATA Commands (only mandatory commands listed here) |
| */ |
| #define ATA_CMD_READ 0x20 /* Read Sectors (with retries) */ |
| #define ATA_CMD_READN 0x21 /* Read Sectors ( no retries) */ |
| #define ATA_CMD_WRITE 0x30 /* Write Sectores (with retries)*/ |
| #define ATA_CMD_WRITEN 0x31 /* Write Sectors ( no retries)*/ |
| #define ATA_CMD_VRFY 0x40 /* Read Verify (with retries) */ |
| #define ATA_CMD_VRFYN 0x41 /* Read verify ( no retries) */ |
| #define ATA_CMD_SEEK 0x70 /* Seek */ |
| #define ATA_CMD_DIAG 0x90 /* Execute Device Diagnostic */ |
| #define ATA_CMD_INIT 0x91 /* Initialize Device Parameters */ |
| #define ATA_CMD_RD_MULT 0xC4 /* Read Multiple */ |
| #define ATA_CMD_WR_MULT 0xC5 /* Write Multiple */ |
| #define ATA_CMD_SETMULT 0xC6 /* Set Multiple Mode */ |
| #define ATA_CMD_RD_DMA 0xC8 /* Read DMA (with retries) */ |
| #define ATA_CMD_RD_DMAN 0xC9 /* Read DMS ( no retries) */ |
| #define ATA_CMD_WR_DMA 0xCA /* Write DMA (with retries) */ |
| #define ATA_CMD_WR_DMAN 0xCB /* Write DMA ( no retires) */ |
| #define ATA_CMD_IDENT 0xEC /* Identify Device */ |
| #define ATA_CMD_SETF 0xEF /* Set Features */ |
| #define ATA_CMD_CHK_PWR 0xE5 /* Check Power Mode */ |
| |
| #define ATA_CMD_READ_EXT 0x24 /* Read Sectors (with retries) with 48bit addressing */ |
| #define ATA_CMD_WRITE_EXT 0x34 /* Write Sectores (with retries) with 48bit addressing */ |
| #define ATA_CMD_VRFY_EXT 0x42 /* Read Verify (with retries) with 48bit addressing */ |
| |
| /* |
| * ATAPI Commands |
| */ |
| #define ATAPI_CMD_IDENT 0xA1 /* Identify AT Atachment Packed Interface Device */ |
| #define ATAPI_CMD_PACKET 0xA0 /* Packed Command */ |
| |
| |
| #define ATAPI_CMD_INQUIRY 0x12 |
| #define ATAPI_CMD_REQ_SENSE 0x03 |
| #define ATAPI_CMD_READ_CAP 0x25 |
| #define ATAPI_CMD_START_STOP 0x1B |
| #define ATAPI_CMD_READ_12 0xA8 |
| |
| |
| #define ATA_GET_ERR() inb(ATA_STATUS) |
| #define ATA_GET_STAT() inb(ATA_STATUS) |
| #define ATA_OK_STAT(stat,good,bad) (((stat)&((good)|(bad)))==(good)) |
| #define ATA_BAD_R_STAT (ATA_STAT_BUSY | ATA_STAT_ERR) |
| #define ATA_BAD_W_STAT (ATA_BAD_R_STAT | ATA_STAT_FAULT) |
| #define ATA_BAD_STAT (ATA_BAD_R_STAT | ATA_STAT_DRQ) |
| #define ATA_DRIVE_READY (ATA_READY_STAT | ATA_STAT_SEEK) |
| #define ATA_DATA_READY (ATA_STAT_DRQ) |
| |
| #define ATA_BLOCKSIZE 512 /* bytes */ |
| #define ATA_BLOCKSHIFT 9 /* 2 ^ ATA_BLOCKSIZESHIFT = 512 */ |
| #define ATA_SECTORWORDS (512 / sizeof(unsigned long)) |
| |
| #ifndef ATA_RESET_TIME |
| #define ATA_RESET_TIME 60 /* spec allows up to 31 seconds */ |
| #endif |
| |
| /* ------------------------------------------------------------------------- */ |
| |
| /* |
| * structure returned by ATA_CMD_IDENT, as per ANSI ATA2 rev.2f spec |
| */ |
| typedef struct hd_driveid { |
| unsigned short config; /* lots of obsolete bit flags */ |
| unsigned short cyls; /* "physical" cyls */ |
| unsigned short reserved2; /* reserved (word 2) */ |
| unsigned short heads; /* "physical" heads */ |
| unsigned short track_bytes; /* unformatted bytes per track */ |
| unsigned short sector_bytes; /* unformatted bytes per sector */ |
| unsigned short sectors; /* "physical" sectors per track */ |
| unsigned short vendor0; /* vendor unique */ |
| unsigned short vendor1; /* vendor unique */ |
| unsigned short vendor2; /* vendor unique */ |
| unsigned char serial_no[20]; /* 0 = not_specified */ |
| unsigned short buf_type; |
| unsigned short buf_size; /* 512 byte increments; 0 = not_specified */ |
| unsigned short ecc_bytes; /* for r/w long cmds; 0 = not_specified */ |
| unsigned char fw_rev[8]; /* 0 = not_specified */ |
| unsigned char model[40]; /* 0 = not_specified */ |
| unsigned char max_multsect; /* 0=not_implemented */ |
| unsigned char vendor3; /* vendor unique */ |
| unsigned short dword_io; /* 0=not_implemented; 1=implemented */ |
| unsigned char vendor4; /* vendor unique */ |
| unsigned char capability; /* bits 0:DMA 1:LBA 2:IORDYsw 3:IORDYsup*/ |
| unsigned short reserved50; /* reserved (word 50) */ |
| unsigned char vendor5; /* vendor unique */ |
| unsigned char tPIO; /* 0=slow, 1=medium, 2=fast */ |
| unsigned char vendor6; /* vendor unique */ |
| unsigned char tDMA; /* 0=slow, 1=medium, 2=fast */ |
| unsigned short field_valid; /* bits 0:cur_ok 1:eide_ok */ |
| unsigned short cur_cyls; /* logical cylinders */ |
| unsigned short cur_heads; /* logical heads */ |
| unsigned short cur_sectors; /* logical sectors per track */ |
| unsigned short cur_capacity0; /* logical total sectors on drive */ |
| unsigned short cur_capacity1; /* (2 words, misaligned int) */ |
| unsigned char multsect; /* current multiple sector count */ |
| unsigned char multsect_valid; /* when (bit0==1) multsect is ok */ |
| unsigned int lba_capacity; /* total number of sectors */ |
| unsigned short dma_1word; /* single-word dma info */ |
| unsigned short dma_mword; /* multiple-word dma info */ |
| unsigned short eide_pio_modes; /* bits 0:mode3 1:mode4 */ |
| unsigned short eide_dma_min; /* min mword dma cycle time (ns) */ |
| unsigned short eide_dma_time; /* recommended mword dma cycle time (ns) */ |
| unsigned short eide_pio; /* min cycle time (ns), no IORDY */ |
| unsigned short eide_pio_iordy; /* min cycle time (ns), with IORDY */ |
| unsigned short words69_70[2]; /* reserved words 69-70 */ |
| unsigned short words71_74[4]; /* reserved words 71-74 */ |
| unsigned short queue_depth; /* */ |
| unsigned short words76_79[4]; /* reserved words 76-79 */ |
| unsigned short major_rev_num; /* */ |
| unsigned short minor_rev_num; /* */ |
| unsigned short command_set_1; /* bits 0:Smart 1:Security 2:Removable 3:PM */ |
| unsigned short command_set_2; /* bits 14:Smart Enabled 13:0 zero 10:lba48 support*/ |
| unsigned short cfsse; /* command set-feature supported extensions */ |
| unsigned short cfs_enable_1; /* command set-feature enabled */ |
| unsigned short cfs_enable_2; /* command set-feature enabled */ |
| unsigned short csf_default; /* command set-feature default */ |
| unsigned short dma_ultra; /* */ |
| unsigned short word89; /* reserved (word 89) */ |
| unsigned short word90; /* reserved (word 90) */ |
| unsigned short CurAPMvalues; /* current APM values */ |
| unsigned short word92; /* reserved (word 92) */ |
| unsigned short hw_config; /* hardware config */ |
| unsigned short words94_99[6];/* reserved words 94-99 */ |
| /*unsigned long long lba48_capacity; /--* 4 16bit values containing lba 48 total number of sectors */ |
| unsigned short lba48_capacity[4]; /* 4 16bit values containing lba 48 total number of sectors */ |
| unsigned short words104_125[22];/* reserved words 104-125 */ |
| unsigned short last_lun; /* reserved (word 126) */ |
| unsigned short word127; /* reserved (word 127) */ |
| unsigned short dlf; /* device lock function |
| * 15:9 reserved |
| * 8 security level 1:max 0:high |
| * 7:6 reserved |
| * 5 enhanced erase |
| * 4 expire |
| * 3 frozen |
| * 2 locked |
| * 1 en/disabled |
| * 0 capability |
| */ |
| unsigned short csfo; /* current set features options |
| * 15:4 reserved |
| * 3 auto reassign |
| * 2 reverting |
| * 1 read-look-ahead |
| * 0 write cache |
| */ |
| unsigned short words130_155[26];/* reserved vendor words 130-155 */ |
| unsigned short word156; |
| unsigned short words157_159[3];/* reserved vendor words 157-159 */ |
| unsigned short words160_162[3];/* reserved words 160-162 */ |
| unsigned short cf_advanced_caps; |
| unsigned short words164_255[92];/* reserved words 164-255 */ |
| } hd_driveid_t; |
| |
| |
| /* |
| * PIO Mode Configuration |
| * |
| * See ATA-3 (AT Attachment-3 Interface) documentation, Figure 14 / Table 21 |
| */ |
| |
| typedef struct { |
| unsigned int t_setup; /* Setup Time in [ns] or clocks */ |
| unsigned int t_length; /* Length Time in [ns] or clocks */ |
| unsigned int t_hold; /* Hold Time in [ns] or clocks */ |
| } |
| pio_config_t; |
| |
| #define IDE_MAX_PIO_MODE 4 /* max suppurted PIO mode */ |
| |
| /* ------------------------------------------------------------------------- */ |
| |
| #endif /* _ATA_H */ |
