From ed73508dec40afee7c90048fac510796bf91314d Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Sun, 1 May 2016 11:36:00 -0600 Subject: dm: ide: Remove the forward declarations Reorder the code to avoid needing forward declarations. Fix up code style as needed. Signed-off-by: Simon Glass --- cmd/ide.c | 1924 ++++++++++++++++++++++++++++++------------------------------- 1 file changed, 946 insertions(+), 978 deletions(-) diff --git a/cmd/ide.c b/cmd/ide.c index a46d0acfd6..db26f4320d 100644 --- a/cmd/ide.c +++ b/cmd/ide.c @@ -57,491 +57,518 @@ static int ide_bus_ok[CONFIG_SYS_IDE_MAXBUS]; struct blk_desc ide_dev_desc[CONFIG_SYS_IDE_MAXDEVICE]; /* ------------------------------------------------------------------------- */ -#ifdef CONFIG_IDE_RESET -static void ide_reset(void); -#else -#define ide_reset() /* dummy */ -#endif - -static void ide_ident(struct blk_desc *dev_desc); -static uchar ide_wait(int dev, ulong t); - #define IDE_TIME_OUT 2000 /* 2 sec timeout */ #define ATAPI_TIME_OUT 7000 /* 7 sec timeout (5 sec seems to work...) */ #define IDE_SPIN_UP_TIME_OUT 5000 /* 5 sec spin-up timeout */ -static void ident_cpy(unsigned char *dest, unsigned char *src, - unsigned int len); - #ifndef CONFIG_SYS_ATA_PORT_ADDR #define CONFIG_SYS_ATA_PORT_ADDR(port) (port) #endif -#ifdef CONFIG_ATAPI -static void atapi_inquiry(struct blk_desc *dev_desc); -static ulong atapi_read(struct blk_desc *block_dev, lbaint_t blknr, - lbaint_t blkcnt, void *buffer); +#ifndef CONFIG_IDE_LED /* define LED macros, they are not used anyways */ +# define DEVICE_LED(x) 0 +# define LED_IDE1 1 +# define LED_IDE2 2 #endif +#ifdef CONFIG_IDE_RESET +extern void ide_set_reset(int idereset); -/* ------------------------------------------------------------------------- */ - -int do_ide(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]) +static void ide_reset(void) { - int rcode = 0; - - switch (argc) { - case 0: - case 1: - return CMD_RET_USAGE; - case 2: - if (strncmp(argv[1], "res", 3) == 0) { - puts("\nReset IDE" -#ifdef CONFIG_IDE_8xx_DIRECT - " on PCMCIA " PCMCIA_SLOT_MSG -#endif - ": "); - - ide_init(); - return 0; - } else if (strncmp(argv[1], "inf", 3) == 0) { - int i; + int i; - putc('\n'); + curr_device = -1; + for (i = 0; i < CONFIG_SYS_IDE_MAXBUS; ++i) + ide_bus_ok[i] = 0; + for (i = 0; i < CONFIG_SYS_IDE_MAXDEVICE; ++i) + ide_dev_desc[i].type = DEV_TYPE_UNKNOWN; - for (i = 0; i < CONFIG_SYS_IDE_MAXDEVICE; ++i) { - if (ide_dev_desc[i].type == DEV_TYPE_UNKNOWN) - continue; /* list only known devices */ - printf("IDE device %d: ", i); - dev_print(&ide_dev_desc[i]); - } - return 0; + ide_set_reset(1); /* assert reset */ - } else if (strncmp(argv[1], "dev", 3) == 0) { - if ((curr_device < 0) - || (curr_device >= CONFIG_SYS_IDE_MAXDEVICE)) { - puts("\nno IDE devices available\n"); - return 1; - } - printf("\nIDE device %d: ", curr_device); - dev_print(&ide_dev_desc[curr_device]); - return 0; - } else if (strncmp(argv[1], "part", 4) == 0) { - int dev, ok; + /* the reset signal shall be asserted for et least 25 us */ + udelay(25); - for (ok = 0, dev = 0; - dev < CONFIG_SYS_IDE_MAXDEVICE; - ++dev) { - if (ide_dev_desc[dev].part_type != - PART_TYPE_UNKNOWN) { - ++ok; - if (dev) - putc('\n'); - part_print(&ide_dev_desc[dev]); - } - } - if (!ok) { - puts("\nno IDE devices available\n"); - rcode++; - } - return rcode; - } - return CMD_RET_USAGE; - case 3: - if (strncmp(argv[1], "dev", 3) == 0) { - int dev = (int)simple_strtoul(argv[2], NULL, 10); + WATCHDOG_RESET(); - printf("\nIDE device %d: ", dev); - if (dev >= CONFIG_SYS_IDE_MAXDEVICE) { - puts("unknown device\n"); - return 1; - } - dev_print(&ide_dev_desc[dev]); - /*ide_print (dev); */ + /* de-assert RESET signal */ + ide_set_reset(0); - if (ide_dev_desc[dev].type == DEV_TYPE_UNKNOWN) - return 1; + /* wait 250 ms */ + for (i = 0; i < 250; ++i) + udelay(1000); +} +#else +#define ide_reset() /* dummy */ +#endif /* CONFIG_IDE_RESET */ - curr_device = dev; +/* + * Wait until Busy bit is off, or timeout (in ms) + * Return last status + */ +static uchar ide_wait(int dev, ulong t) +{ + ulong delay = 10 * t; /* poll every 100 us */ + uchar c; - puts("... is now current device\n"); + while ((c = ide_inb(dev, ATA_STATUS)) & ATA_STAT_BUSY) { + udelay(100); + if (delay-- == 0) + break; + } + return c; +} - return 0; - } else if (strncmp(argv[1], "part", 4) == 0) { - int dev = (int)simple_strtoul(argv[2], NULL, 10); +/* + * copy src to dest, skipping leading and trailing blanks and null + * terminate the string + * "len" is the size of available memory including the terminating '\0' + */ +static void ident_cpy(unsigned char *dst, unsigned char *src, + unsigned int len) +{ + unsigned char *end, *last; - if (ide_dev_desc[dev].part_type != PART_TYPE_UNKNOWN) { - part_print(&ide_dev_desc[dev]); - } else { - printf("\nIDE device %d not available\n", - dev); - rcode = 1; - } - return rcode; - } + last = dst; + end = src + len - 1; - return CMD_RET_USAGE; - default: - /* at least 4 args */ + /* reserve space for '\0' */ + if (len < 2) + goto OUT; - if (strcmp(argv[1], "read") == 0) { - ulong addr = simple_strtoul(argv[2], NULL, 16); - ulong cnt = simple_strtoul(argv[4], NULL, 16); - struct blk_desc *dev_desc; - ulong n; + /* skip leading white space */ + while ((*src) && (src < end) && (*src == ' ')) + ++src; -#ifdef CONFIG_SYS_64BIT_LBA - lbaint_t blk = simple_strtoull(argv[3], NULL, 16); + /* copy string, omitting trailing white space */ + while ((*src) && (src < end)) { + *dst++ = *src; + if (*src++ != ' ') + last = dst; + } +OUT: + *last = '\0'; +} - printf("\nIDE read: device %d block # %lld, count %ld...", - curr_device, blk, cnt); -#else - lbaint_t blk = simple_strtoul(argv[3], NULL, 16); +#ifdef CONFIG_ATAPI +/**************************************************************************** + * ATAPI Support + */ - printf("\nIDE read: device %d block # %ld, count %ld...", - curr_device, blk, cnt); -#endif +#if defined(CONFIG_IDE_SWAP_IO) +/* since ATAPI may use commands with not 4 bytes alligned length + * we have our own transfer functions, 2 bytes alligned */ +__weak void ide_output_data_shorts(int dev, ushort *sect_buf, int shorts) +{ + ushort *dbuf; + volatile ushort *pbuf; - dev_desc = &ide_dev_desc[curr_device]; - n = blk_dread(dev_desc, blk, cnt, (ulong *)addr); - /* flush cache after read */ - flush_cache(addr, - cnt * ide_dev_desc[curr_device].blksz); + pbuf = (ushort *)(ATA_CURR_BASE(dev) + ATA_DATA_REG); + dbuf = (ushort *)sect_buf; - printf("%ld blocks read: %s\n", - n, (n == cnt) ? "OK" : "ERROR"); - if (n == cnt) - return 0; - else - return 1; - } else if (strcmp(argv[1], "write") == 0) { - ulong addr = simple_strtoul(argv[2], NULL, 16); - ulong cnt = simple_strtoul(argv[4], NULL, 16); - ulong n; + debug("in output data shorts base for read is %lx\n", + (unsigned long) pbuf); -#ifdef CONFIG_SYS_64BIT_LBA - lbaint_t blk = simple_strtoull(argv[3], NULL, 16); + while (shorts--) { + EIEIO; + *pbuf = *dbuf++; + } +} - printf("\nIDE write: device %d block # %lld, count %ld...", - curr_device, blk, cnt); -#else - lbaint_t blk = simple_strtoul(argv[3], NULL, 16); +__weak void ide_input_data_shorts(int dev, ushort *sect_buf, int shorts) +{ + ushort *dbuf; + volatile ushort *pbuf; - printf("\nIDE write: device %d block # %ld, count %ld...", - curr_device, blk, cnt); -#endif - n = ide_write(&ide_dev_desc[curr_device], blk, cnt, - (ulong *)addr); + pbuf = (ushort *)(ATA_CURR_BASE(dev) + ATA_DATA_REG); + dbuf = (ushort *)sect_buf; - printf("%ld blocks written: %s\n", - n, (n == cnt) ? "OK" : "ERROR"); - if (n == cnt) - return 0; - else - return 1; - } else { - return CMD_RET_USAGE; - } + debug("in input data shorts base for read is %lx\n", + (unsigned long) pbuf); - return rcode; + while (shorts--) { + EIEIO; + *dbuf++ = *pbuf; } } -int do_diskboot(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]) +#else /* ! CONFIG_IDE_SWAP_IO */ +__weak void ide_output_data_shorts(int dev, ushort *sect_buf, int shorts) { - return common_diskboot(cmdtp, "ide", argc, argv); + outsw(ATA_CURR_BASE(dev) + ATA_DATA_REG, sect_buf, shorts); } -/* ------------------------------------------------------------------------- */ - -__weak void ide_led(uchar led, uchar status) +__weak void ide_input_data_shorts(int dev, ushort *sect_buf, int shorts) { -#if defined(CONFIG_IDE_LED) && defined(PER8_BASE) /* required by LED_PORT */ - static uchar led_buffer; /* Buffer for current LED status */ - - uchar *led_port = LED_PORT; + insw(ATA_CURR_BASE(dev) + ATA_DATA_REG, sect_buf, shorts); +} - if (status) /* switch LED on */ - led_buffer |= led; - else /* switch LED off */ - led_buffer &= ~led; +#endif /* CONFIG_IDE_SWAP_IO */ - *led_port = led_buffer; -#endif -} - -#ifndef CONFIG_IDE_LED /* define LED macros, they are not used anyways */ -# define DEVICE_LED(x) 0 -# define LED_IDE1 1 -# define LED_IDE2 2 -#endif - -/* ------------------------------------------------------------------------- */ - -__weak void ide_outb(int dev, int port, unsigned char val) +/* + * Wait until (Status & mask) == res, or timeout (in ms) + * Return last status + * This is used since some ATAPI CD ROMs clears their Busy Bit first + * and then they set their DRQ Bit + */ +static uchar atapi_wait_mask(int dev, ulong t, uchar mask, uchar res) { - debug("ide_outb (dev= %d, port= 0x%x, val= 0x%02x) : @ 0x%08lx\n", - dev, port, val, - (ATA_CURR_BASE(dev) + CONFIG_SYS_ATA_PORT_ADDR(port))); + ulong delay = 10 * t; /* poll every 100 us */ + uchar c; -#if defined(CONFIG_IDE_AHB) - if (port) { - /* write command */ - ide_write_register(dev, port, val); - } else { - /* write data */ - outb(val, (ATA_CURR_BASE(dev))); + /* prevents to read the status before valid */ + c = ide_inb(dev, ATA_DEV_CTL); + + while (((c = ide_inb(dev, ATA_STATUS)) & mask) != res) { + /* break if error occurs (doesn't make sense to wait more) */ + if ((c & ATA_STAT_ERR) == ATA_STAT_ERR) + break; + udelay(100); + if (delay-- == 0) + break; } -#else - outb(val, (ATA_CURR_BASE(dev) + CONFIG_SYS_ATA_PORT_ADDR(port))); -#endif + return c; } -__weak unsigned char ide_inb(int dev, int port) +/* + * issue an atapi command + */ +unsigned char atapi_issue(int device, unsigned char *ccb, int ccblen, + unsigned char *buffer, int buflen) { - uchar val; - -#if defined(CONFIG_IDE_AHB) - val = ide_read_register(dev, port); -#else - val = inb((ATA_CURR_BASE(dev) + CONFIG_SYS_ATA_PORT_ADDR(port))); -#endif + unsigned char c, err, mask, res; + int n; - debug("ide_inb (dev= %d, port= 0x%x) : @ 0x%08lx -> 0x%02x\n", - dev, port, - (ATA_CURR_BASE(dev) + CONFIG_SYS_ATA_PORT_ADDR(port)), val); - return val; -} + ide_led(DEVICE_LED(device), 1); /* LED on */ -void ide_init(void) -{ - unsigned char c; - int i, bus; + /* Select device + */ + mask = ATA_STAT_BUSY | ATA_STAT_DRQ; + res = 0; + ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device)); + c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res); + if ((c & mask) != res) { + printf("ATAPI_ISSUE: device %d not ready status %X\n", device, + c); + err = 0xFF; + goto AI_OUT; + } + /* write taskfile */ + ide_outb(device, ATA_ERROR_REG, 0); /* no DMA, no overlaped */ + ide_outb(device, ATA_SECT_CNT, 0); + ide_outb(device, ATA_SECT_NUM, 0); + ide_outb(device, ATA_CYL_LOW, (unsigned char) (buflen & 0xFF)); + ide_outb(device, ATA_CYL_HIGH, + (unsigned char) ((buflen >> 8) & 0xFF)); + ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device)); -#ifdef CONFIG_IDE_8xx_PCCARD - extern int ide_devices_found; /* Initialized in check_ide_device() */ -#endif /* CONFIG_IDE_8xx_PCCARD */ + ide_outb(device, ATA_COMMAND, ATAPI_CMD_PACKET); + udelay(50); -#ifdef CONFIG_IDE_PREINIT - WATCHDOG_RESET(); + mask = ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR; + res = ATA_STAT_DRQ; + c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res); - if (ide_preinit()) { - puts("ide_preinit failed\n"); - return; + if ((c & mask) != res) { /* DRQ must be 1, BSY 0 */ + printf("ATAPI_ISSUE: Error (no IRQ) before sending ccb dev %d status 0x%02x\n", + device, c); + err = 0xFF; + goto AI_OUT; } -#endif /* CONFIG_IDE_PREINIT */ - WATCHDOG_RESET(); + /* write command block */ + ide_output_data_shorts(device, (unsigned short *)ccb, ccblen / 2); + /* ATAPI Command written wait for completition */ + udelay(5000); /* device must set bsy */ + + mask = ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR; /* - * Reset the IDE just to be sure. - * Light LED's to show + * if no data wait for DRQ = 0 BSY = 0 + * if data wait for DRQ = 1 BSY = 0 */ - ide_led((LED_IDE1 | LED_IDE2), 1); /* LED's on */ - - /* ATAPI Drives seems to need a proper IDE Reset */ - ide_reset(); - -#ifdef CONFIG_IDE_INIT_POSTRESET - WATCHDOG_RESET(); - - if (ide_init_postreset()) { - puts("ide_preinit_postreset failed\n"); - return; + res = 0; + if (buflen) + res = ATA_STAT_DRQ; + c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res); + if ((c & mask) != res) { + if (c & ATA_STAT_ERR) { + err = (ide_inb(device, ATA_ERROR_REG)) >> 4; + debug("atapi_issue 1 returned sense key %X status %02X\n", + err, c); + } else { + printf("ATAPI_ISSUE: (no DRQ) after sending ccb (%x) status 0x%02x\n", + ccb[0], c); + err = 0xFF; + } + goto AI_OUT; } -#endif /* CONFIG_IDE_INIT_POSTRESET */ + n = ide_inb(device, ATA_CYL_HIGH); + n <<= 8; + n += ide_inb(device, ATA_CYL_LOW); + if (n > buflen) { + printf("ERROR, transfer bytes %d requested only %d\n", n, + buflen); + err = 0xff; + goto AI_OUT; + } + if ((n == 0) && (buflen < 0)) { + printf("ERROR, transfer bytes %d requested %d\n", n, buflen); + err = 0xff; + goto AI_OUT; + } + if (n != buflen) { + debug("WARNING, transfer bytes %d not equal with requested %d\n", + n, buflen); + } + if (n != 0) { /* data transfer */ + debug("ATAPI_ISSUE: %d Bytes to transfer\n", n); + /* we transfer shorts */ + n >>= 1; + /* ok now decide if it is an in or output */ + if ((ide_inb(device, ATA_SECT_CNT) & 0x02) == 0) { + debug("Write to device\n"); + ide_output_data_shorts(device, (unsigned short *)buffer, + n); + } else { + debug("Read from device @ %p shorts %d\n", buffer, n); + ide_input_data_shorts(device, (unsigned short *)buffer, + n); + } + } + udelay(5000); /* seems that some CD ROMs need this... */ + mask = ATA_STAT_BUSY | ATA_STAT_ERR; + res = 0; + c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res); + if ((c & ATA_STAT_ERR) == ATA_STAT_ERR) { + err = (ide_inb(device, ATA_ERROR_REG) >> 4); + debug("atapi_issue 2 returned sense key %X status %X\n", err, + c); + } else { + err = 0; + } +AI_OUT: + ide_led(DEVICE_LED(device), 0); /* LED off */ + return err; +} - /* - * Wait for IDE to get ready. - * According to spec, this can take up to 31 seconds! - */ - for (bus = 0; bus < CONFIG_SYS_IDE_MAXBUS; ++bus) { - int dev = - bus * (CONFIG_SYS_IDE_MAXDEVICE / - CONFIG_SYS_IDE_MAXBUS); +/* + * sending the command to atapi_issue. If an status other than good + * returns, an request_sense will be issued + */ -#ifdef CONFIG_IDE_8xx_PCCARD - /* Skip non-ide devices from probing */ - if ((ide_devices_found & (1 << bus)) == 0) { - ide_led((LED_IDE1 | LED_IDE2), 0); /* LED's off */ - continue; - } -#endif - printf("Bus %d: ", bus); +#define ATAPI_DRIVE_NOT_READY 100 +#define ATAPI_UNIT_ATTN 10 - ide_bus_ok[bus] = 0; +unsigned char atapi_issue_autoreq(int device, + unsigned char *ccb, + int ccblen, + unsigned char *buffer, int buflen) +{ + unsigned char sense_data[18], sense_ccb[12]; + unsigned char res, key, asc, ascq; + int notready, unitattn; - /* Select device - */ - udelay(100000); /* 100 ms */ - ide_outb(dev, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(dev)); - udelay(100000); /* 100 ms */ - i = 0; - do { - udelay(10000); /* 10 ms */ + unitattn = ATAPI_UNIT_ATTN; + notready = ATAPI_DRIVE_NOT_READY; - c = ide_inb(dev, ATA_STATUS); - i++; - if (i > (ATA_RESET_TIME * 100)) { - puts("** Timeout **\n"); - /* LED's off */ - ide_led((LED_IDE1 | LED_IDE2), 0); - return; - } - if ((i >= 100) && ((i % 100) == 0)) - putc('.'); +retry: + res = atapi_issue(device, ccb, ccblen, buffer, buflen); + if (res == 0) + return 0; /* Ok */ - } while (c & ATA_STAT_BUSY); + if (res == 0xFF) + return 0xFF; /* error */ - if (c & (ATA_STAT_BUSY | ATA_STAT_FAULT)) { - puts("not available "); - debug("Status = 0x%02X ", c); -#ifndef CONFIG_ATAPI /* ATAPI Devices do not set DRDY */ - } else if ((c & ATA_STAT_READY) == 0) { - puts("not available "); - debug("Status = 0x%02X ", c); -#endif - } else { - puts("OK "); - ide_bus_ok[bus] = 1; - } - WATCHDOG_RESET(); - } + debug("(auto_req)atapi_issue returned sense key %X\n", res); - putc('\n'); + memset(sense_ccb, 0, sizeof(sense_ccb)); + memset(sense_data, 0, sizeof(sense_data)); + sense_ccb[0] = ATAPI_CMD_REQ_SENSE; + sense_ccb[4] = 18; /* allocation Length */ - ide_led((LED_IDE1 | LED_IDE2), 0); /* LED's off */ + res = atapi_issue(device, sense_ccb, 12, sense_data, 18); + key = (sense_data[2] & 0xF); + asc = (sense_data[12]); + ascq = (sense_data[13]); - curr_device = -1; - for (i = 0; i < CONFIG_SYS_IDE_MAXDEVICE; ++i) { - int led = (IDE_BUS(i) == 0) ? LED_IDE1 : LED_IDE2; - ide_dev_desc[i].type = DEV_TYPE_UNKNOWN; - ide_dev_desc[i].if_type = IF_TYPE_IDE; - ide_dev_desc[i].devnum = i; - ide_dev_desc[i].part_type = PART_TYPE_UNKNOWN; - ide_dev_desc[i].blksz = 0; - ide_dev_desc[i].log2blksz = - LOG2_INVALID(typeof(ide_dev_desc[i].log2blksz)); - ide_dev_desc[i].lba = 0; - ide_dev_desc[i].block_read = ide_read; - ide_dev_desc[i].block_write = ide_write; - if (!ide_bus_ok[IDE_BUS(i)]) - continue; - ide_led(led, 1); /* LED on */ - ide_ident(&ide_dev_desc[i]); - ide_led(led, 0); /* LED off */ - dev_print(&ide_dev_desc[i]); + debug("ATAPI_CMD_REQ_SENSE returned %x\n", res); + debug(" Sense page: %02X key %02X ASC %02X ASCQ %02X\n", + sense_data[0], key, asc, ascq); - if ((ide_dev_desc[i].lba > 0) && (ide_dev_desc[i].blksz > 0)) { - /* initialize partition type */ - part_init(&ide_dev_desc[i]); - if (curr_device < 0) - curr_device = i; + if ((key == 0)) + return 0; /* ok device ready */ + + if ((key == 6) || (asc == 0x29) || (asc == 0x28)) { /* Unit Attention */ + if (unitattn-- > 0) { + udelay(200 * 1000); + goto retry; } + printf("Unit Attention, tried %d\n", ATAPI_UNIT_ATTN); + goto error; } - WATCHDOG_RESET(); + if ((asc == 0x4) && (ascq == 0x1)) { + /* not ready, but will be ready soon */ + if (notready-- > 0) { + udelay(200 * 1000); + goto retry; + } + printf("Drive not ready, tried %d times\n", + ATAPI_DRIVE_NOT_READY); + goto error; + } + if (asc == 0x3a) { + debug("Media not present\n"); + goto error; + } + + printf("ERROR: Unknown Sense key %02X ASC %02X ASCQ %02X\n", key, asc, + ascq); +error: + debug("ERROR Sense key %02X ASC %02X ASCQ %02X\n", key, asc, ascq); + return 0xFF; } -/* ------------------------------------------------------------------------- */ +/* + * atapi_read: + * we transfer only one block per command, since the multiple DRQ per + * command is not yet implemented + */ +#define ATAPI_READ_MAX_BYTES 2048 /* we read max 2kbytes */ +#define ATAPI_READ_BLOCK_SIZE 2048 /* assuming CD part */ +#define ATAPI_READ_MAX_BLOCK (ATAPI_READ_MAX_BYTES/ATAPI_READ_BLOCK_SIZE) -#ifdef CONFIG_PARTITIONS -struct blk_desc *ide_get_dev(int dev) +ulong atapi_read(struct blk_desc *block_dev, lbaint_t blknr, lbaint_t blkcnt, + void *buffer) { - return (dev < CONFIG_SYS_IDE_MAXDEVICE) ? &ide_dev_desc[dev] : NULL; -} -#endif + int device = block_dev->devnum; + ulong n = 0; + unsigned char ccb[12]; /* Command descriptor block */ + ulong cnt; -/* ------------------------------------------------------------------------- */ + debug("atapi_read dev %d start " LBAF " blocks " LBAF + " buffer at %lX\n", device, blknr, blkcnt, (ulong) buffer); -/* We only need to swap data if we are running on a big endian cpu. */ -#if defined(__LITTLE_ENDIAN) -__weak void ide_input_swap_data(int dev, ulong *sect_buf, int words) -{ - ide_input_data(dev, sect_buf, words); + do { + if (blkcnt > ATAPI_READ_MAX_BLOCK) + cnt = ATAPI_READ_MAX_BLOCK; + else + cnt = blkcnt; + + ccb[0] = ATAPI_CMD_READ_12; + ccb[1] = 0; /* reserved */ + ccb[2] = (unsigned char) (blknr >> 24) & 0xFF; /* MSB Block */ + ccb[3] = (unsigned char) (blknr >> 16) & 0xFF; /* */ + ccb[4] = (unsigned char) (blknr >> 8) & 0xFF; + ccb[5] = (unsigned char) blknr & 0xFF; /* LSB Block */ + ccb[6] = (unsigned char) (cnt >> 24) & 0xFF; /* MSB Block cnt */ + ccb[7] = (unsigned char) (cnt >> 16) & 0xFF; + ccb[8] = (unsigned char) (cnt >> 8) & 0xFF; + ccb[9] = (unsigned char) cnt & 0xFF; /* LSB Block */ + ccb[10] = 0; /* reserved */ + ccb[11] = 0; /* reserved */ + + if (atapi_issue_autoreq(device, ccb, 12, + (unsigned char *)buffer, + cnt * ATAPI_READ_BLOCK_SIZE) + == 0xFF) { + return n; + } + n += cnt; + blkcnt -= cnt; + blknr += cnt; + buffer += (cnt * ATAPI_READ_BLOCK_SIZE); + } while (blkcnt > 0); + return n; } -#else -__weak void ide_input_swap_data(int dev, ulong *sect_buf, int words) + +static void atapi_inquiry(struct blk_desc *dev_desc) { - volatile ushort *pbuf = - (ushort *) (ATA_CURR_BASE(dev) + ATA_DATA_REG); - ushort *dbuf = (ushort *) sect_buf; + unsigned char ccb[12]; /* Command descriptor block */ + unsigned char iobuf[64]; /* temp buf */ + unsigned char c; + int device; - debug("in input swap data base for read is %lx\n", - (unsigned long) pbuf); + device = dev_desc->devnum; + dev_desc->type = DEV_TYPE_UNKNOWN; /* not yet valid */ + dev_desc->block_read = atapi_read; - while (words--) { -#ifdef __MIPS__ - *dbuf++ = swab16p((u16 *) pbuf); - *dbuf++ = swab16p((u16 *) pbuf); -#else - *dbuf++ = ld_le16(pbuf); - *dbuf++ = ld_le16(pbuf); -#endif /* !MIPS */ - } -} -#endif /* __LITTLE_ENDIAN */ + memset(ccb, 0, sizeof(ccb)); + memset(iobuf, 0, sizeof(iobuf)); + ccb[0] = ATAPI_CMD_INQUIRY; + ccb[4] = 40; /* allocation Legnth */ + c = atapi_issue_autoreq(device, ccb, 12, (unsigned char *)iobuf, 40); -#if defined(CONFIG_IDE_SWAP_IO) -__weak void ide_output_data(int dev, const ulong *sect_buf, int words) -{ - ushort *dbuf; - volatile ushort *pbuf; + debug("ATAPI_CMD_INQUIRY returned %x\n", c); + if (c != 0) + return; - pbuf = (ushort *) (ATA_CURR_BASE(dev) + ATA_DATA_REG); - dbuf = (ushort *) sect_buf; - while (words--) { - EIEIO; - *pbuf = *dbuf++; - EIEIO; - *pbuf = *dbuf++; - } -} -#else /* ! CONFIG_IDE_SWAP_IO */ -__weak void ide_output_data(int dev, const ulong *sect_buf, int words) -{ -#if defined(CONFIG_IDE_AHB) - ide_write_data(dev, sect_buf, words); -#else - outsw(ATA_CURR_BASE(dev) + ATA_DATA_REG, sect_buf, words << 1); -#endif -} -#endif /* CONFIG_IDE_SWAP_IO */ + /* copy device ident strings */ + ident_cpy((unsigned char *)dev_desc->vendor, &iobuf[8], 8); + ident_cpy((unsigned char *)dev_desc->product, &iobuf[16], 16); + ident_cpy((unsigned char *)dev_desc->revision, &iobuf[32], 5); -#if defined(CONFIG_IDE_SWAP_IO) -__weak void ide_input_data(int dev, ulong *sect_buf, int words) -{ - ushort *dbuf; - volatile ushort *pbuf; + dev_desc->lun = 0; + dev_desc->lba = 0; + dev_desc->blksz = 0; + dev_desc->log2blksz = LOG2_INVALID(typeof(dev_desc->log2blksz)); + dev_desc->type = iobuf[0] & 0x1f; - pbuf = (ushort *) (ATA_CURR_BASE(dev) + ATA_DATA_REG); - dbuf = (ushort *) sect_buf; + if ((iobuf[1] & 0x80) == 0x80) + dev_desc->removable = 1; + else + dev_desc->removable = 0; - debug("in input data base for read is %lx\n", (unsigned long) pbuf); + memset(ccb, 0, sizeof(ccb)); + memset(iobuf, 0, sizeof(iobuf)); + ccb[0] = ATAPI_CMD_START_STOP; + ccb[4] = 0x03; /* start */ - while (words--) { - EIEIO; - *dbuf++ = *pbuf; - EIEIO; - *dbuf++ = *pbuf; - } -} -#else /* ! CONFIG_IDE_SWAP_IO */ -__weak void ide_input_data(int dev, ulong *sect_buf, int words) -{ -#if defined(CONFIG_IDE_AHB) - ide_read_data(dev, sect_buf, words); -#else - insw(ATA_CURR_BASE(dev) + ATA_DATA_REG, sect_buf, words << 1); + c = atapi_issue_autoreq(device, ccb, 12, (unsigned char *)iobuf, 0); + + debug("ATAPI_CMD_START_STOP returned %x\n", c); + if (c != 0) + return; + + memset(ccb, 0, sizeof(ccb)); + memset(iobuf, 0, sizeof(iobuf)); + c = atapi_issue_autoreq(device, ccb, 12, (unsigned char *)iobuf, 0); + + debug("ATAPI_CMD_UNIT_TEST_READY returned %x\n", c); + if (c != 0) + return; + + memset(ccb, 0, sizeof(ccb)); + memset(iobuf, 0, sizeof(iobuf)); + ccb[0] = ATAPI_CMD_READ_CAP; + c = atapi_issue_autoreq(device, ccb, 12, (unsigned char *)iobuf, 8); + debug("ATAPI_CMD_READ_CAP returned %x\n", c); + if (c != 0) + return; + + debug("Read Cap: LBA %02X%02X%02X%02X blksize %02X%02X%02X%02X\n", + iobuf[0], iobuf[1], iobuf[2], iobuf[3], + iobuf[4], iobuf[5], iobuf[6], iobuf[7]); + + dev_desc->lba = ((unsigned long) iobuf[0] << 24) + + ((unsigned long) iobuf[1] << 16) + + ((unsigned long) iobuf[2] << 8) + ((unsigned long) iobuf[3]); + dev_desc->blksz = ((unsigned long) iobuf[4] << 24) + + ((unsigned long) iobuf[5] << 16) + + ((unsigned long) iobuf[6] << 8) + ((unsigned long) iobuf[7]); + dev_desc->log2blksz = LOG2(dev_desc->blksz); +#ifdef CONFIG_LBA48 + /* ATAPI devices cannot use 48bit addressing (ATA/ATAPI v7) */ + dev_desc->lba48 = 0; #endif + return; } -#endif /* CONFIG_IDE_SWAP_IO */ +#endif /* CONFIG_ATAPI */ -/* ------------------------------------------------------------------------- - */ static void ide_ident(struct blk_desc *dev_desc) { unsigned char c; @@ -633,11 +660,11 @@ static void ide_ident(struct blk_desc *dev_desc) ide_input_swap_data(device, (ulong *)&iop, ATA_SECTORWORDS); - ident_cpy((unsigned char *) dev_desc->revision, iop.fw_rev, + ident_cpy((unsigned char *)dev_desc->revision, iop.fw_rev, sizeof(dev_desc->revision)); - ident_cpy((unsigned char *) dev_desc->vendor, iop.model, + ident_cpy((unsigned char *)dev_desc->vendor, iop.model, sizeof(dev_desc->vendor)); - ident_cpy((unsigned char *) dev_desc->product, iop.serial_no, + ident_cpy((unsigned char *)dev_desc->product, iop.serial_no, sizeof(dev_desc->product)); #ifdef __LITTLE_ENDIAN /* @@ -711,737 +738,678 @@ static void ide_ident(struct blk_desc *dev_desc) #endif } +/* ------------------------------------------------------------------------- */ + +int do_ide(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]) +{ + int rcode = 0; + + switch (argc) { + case 0: + case 1: + return CMD_RET_USAGE; + case 2: + if (strncmp(argv[1], "res", 3) == 0) { + puts("\nReset IDE" +#ifdef CONFIG_IDE_8xx_DIRECT + " on PCMCIA " PCMCIA_SLOT_MSG +#endif + ": "); + + ide_init(); + return 0; + } else if (strncmp(argv[1], "inf", 3) == 0) { + int i; + + putc('\n'); + + for (i = 0; i < CONFIG_SYS_IDE_MAXDEVICE; ++i) { + if (ide_dev_desc[i].type == DEV_TYPE_UNKNOWN) + continue; /* list only known devices */ + printf("IDE device %d: ", i); + dev_print(&ide_dev_desc[i]); + } + return 0; + + } else if (strncmp(argv[1], "dev", 3) == 0) { + if (curr_device < 0 || + curr_device >= CONFIG_SYS_IDE_MAXDEVICE) { + puts("\nno IDE devices available\n"); + return 1; + } + printf("\nIDE device %d: ", curr_device); + dev_print(&ide_dev_desc[curr_device]); + return 0; + } else if (strncmp(argv[1], "part", 4) == 0) { + int dev, ok; + + for (ok = 0, dev = 0; + dev < CONFIG_SYS_IDE_MAXDEVICE; + ++dev) { + if (ide_dev_desc[dev].part_type != + PART_TYPE_UNKNOWN) { + ++ok; + if (dev) + putc('\n'); + part_print(&ide_dev_desc[dev]); + } + } + if (!ok) { + puts("\nno IDE devices available\n"); + rcode++; + } + return rcode; + } + return CMD_RET_USAGE; + case 3: + if (strncmp(argv[1], "dev", 3) == 0) { + int dev = (int)simple_strtoul(argv[2], NULL, 10); -/* ------------------------------------------------------------------------- */ + printf("\nIDE device %d: ", dev); + if (dev >= CONFIG_SYS_IDE_MAXDEVICE) { + puts("unknown device\n"); + return 1; + } + dev_print(&ide_dev_desc[dev]); + /*ide_print (dev); */ -ulong ide_read(struct blk_desc *block_dev, lbaint_t blknr, lbaint_t blkcnt, - void *buffer) -{ - int device = block_dev->devnum; - ulong n = 0; - unsigned char c; - unsigned char pwrsave = 0; /* power save */ + if (ide_dev_desc[dev].type == DEV_TYPE_UNKNOWN) + return 1; -#ifdef CONFIG_LBA48 - unsigned char lba48 = 0; + curr_device = dev; - if (blknr & 0x0000fffff0000000ULL) { - /* more than 28 bits used, use 48bit mode */ - lba48 = 1; - } -#endif - debug("ide_read dev %d start " LBAF ", blocks " LBAF " buffer at %lX\n", - device, blknr, blkcnt, (ulong) buffer); + puts("... is now current device\n"); - ide_led(DEVICE_LED(device), 1); /* LED on */ + return 0; + } else if (strncmp(argv[1], "part", 4) == 0) { + int dev = (int)simple_strtoul(argv[2], NULL, 10); - /* Select device - */ - ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device)); - c = ide_wait(device, IDE_TIME_OUT); + if (ide_dev_desc[dev].part_type != PART_TYPE_UNKNOWN) { + part_print(&ide_dev_desc[dev]); + } else { + printf("\nIDE device %d not available\n", + dev); + rcode = 1; + } + return rcode; + } - if (c & ATA_STAT_BUSY) { - printf("IDE read: device %d not ready\n", device); - goto IDE_READ_E; - } + return CMD_RET_USAGE; + default: + /* at least 4 args */ - /* first check if the drive is in Powersaving mode, if yes, - * increase the timeout value */ - ide_outb(device, ATA_COMMAND, ATA_CMD_CHK_PWR); - udelay(50); + if (strcmp(argv[1], "read") == 0) { + ulong addr = simple_strtoul(argv[2], NULL, 16); + ulong cnt = simple_strtoul(argv[4], NULL, 16); + struct blk_desc *dev_desc; + ulong n; - c = ide_wait(device, IDE_TIME_OUT); /* can't take over 500 ms */ +#ifdef CONFIG_SYS_64BIT_LBA + lbaint_t blk = simple_strtoull(argv[3], NULL, 16); - if (c & ATA_STAT_BUSY) { - printf("IDE read: device %d not ready\n", device); - goto IDE_READ_E; - } - if ((c & ATA_STAT_ERR) == ATA_STAT_ERR) { - printf("No Powersaving mode %X\n", c); - } else { - c = ide_inb(device, ATA_SECT_CNT); - debug("Powersaving %02X\n", c); - if (c == 0) - pwrsave = 1; - } + printf("\nIDE read: device %d block # %lld, count %ld...", + curr_device, blk, cnt); +#else + lbaint_t blk = simple_strtoul(argv[3], NULL, 16); + printf("\nIDE read: device %d block # %ld, count %ld...", + curr_device, blk, cnt); +#endif - while (blkcnt-- > 0) { + dev_desc = &ide_dev_desc[curr_device]; + n = blk_dread(dev_desc, blk, cnt, (ulong *)addr); + /* flush cache after read */ + flush_cache(addr, + cnt * ide_dev_desc[curr_device].blksz); - c = ide_wait(device, IDE_TIME_OUT); + printf("%ld blocks read: %s\n", + n, (n == cnt) ? "OK" : "ERROR"); + if (n == cnt) + return 0; + else + return 1; + } else if (strcmp(argv[1], "write") == 0) { + ulong addr = simple_strtoul(argv[2], NULL, 16); + ulong cnt = simple_strtoul(argv[4], NULL, 16); + ulong n; - if (c & ATA_STAT_BUSY) { - printf("IDE read: device %d not ready\n", device); - break; - } -#ifdef CONFIG_LBA48 - if (lba48) { - /* write high bits */ - ide_outb(device, ATA_SECT_CNT, 0); - ide_outb(device, ATA_LBA_LOW, (blknr >> 24) & 0xFF); #ifdef CONFIG_SYS_64BIT_LBA - ide_outb(device, ATA_LBA_MID, (blknr >> 32) & 0xFF); - ide_outb(device, ATA_LBA_HIGH, (blknr >> 40) & 0xFF); + lbaint_t blk = simple_strtoull(argv[3], NULL, 16); + + printf("\nIDE write: device %d block # %lld, count %ld...", + curr_device, blk, cnt); #else - ide_outb(device, ATA_LBA_MID, 0); - ide_outb(device, ATA_LBA_HIGH, 0); + lbaint_t blk = simple_strtoul(argv[3], NULL, 16); + + printf("\nIDE write: device %d block # %ld, count %ld...", + curr_device, blk, cnt); #endif + n = ide_write(&ide_dev_desc[curr_device], blk, cnt, + (ulong *)addr); + + printf("%ld blocks written: %s\n", n, + n == cnt ? "OK" : "ERROR"); + if (n == cnt) + return 0; + else + return 1; + } else { + return CMD_RET_USAGE; } -#endif - ide_outb(device, ATA_SECT_CNT, 1); - ide_outb(device, ATA_LBA_LOW, (blknr >> 0) & 0xFF); - ide_outb(device, ATA_LBA_MID, (blknr >> 8) & 0xFF); - ide_outb(device, ATA_LBA_HIGH, (blknr >> 16) & 0xFF); -#ifdef CONFIG_LBA48 - if (lba48) { - ide_outb(device, ATA_DEV_HD, - ATA_LBA | ATA_DEVICE(device)); - ide_outb(device, ATA_COMMAND, ATA_CMD_READ_EXT); + return rcode; + } +} - } else -#endif - { - ide_outb(device, ATA_DEV_HD, ATA_LBA | - ATA_DEVICE(device) | ((blknr >> 24) & 0xF)); - ide_outb(device, ATA_COMMAND, ATA_CMD_READ); - } +int do_diskboot(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]) +{ + return common_diskboot(cmdtp, "ide", argc, argv); +} - udelay(50); +/* ------------------------------------------------------------------------- */ - if (pwrsave) { - /* may take up to 4 sec */ - c = ide_wait(device, IDE_SPIN_UP_TIME_OUT); - pwrsave = 0; - } else { - /* can't take over 500 ms */ - c = ide_wait(device, IDE_TIME_OUT); - } +__weak void ide_led(uchar led, uchar status) +{ +#if defined(CONFIG_IDE_LED) && defined(PER8_BASE) /* required by LED_PORT */ + static uchar led_buffer; /* Buffer for current LED status */ - if ((c & (ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR)) != - ATA_STAT_DRQ) { - printf("Error (no IRQ) dev %d blk " LBAF ": status " - "%#02x\n", device, blknr, c); - break; - } + uchar *led_port = LED_PORT; - ide_input_data(device, buffer, ATA_SECTORWORDS); - (void) ide_inb(device, ATA_STATUS); /* clear IRQ */ + if (status) /* switch LED on */ + led_buffer |= led; + else /* switch LED off */ + led_buffer &= ~led; - ++n; - ++blknr; - buffer += ATA_BLOCKSIZE; - } -IDE_READ_E: - ide_led(DEVICE_LED(device), 0); /* LED off */ - return n; + *led_port = led_buffer; +#endif } /* ------------------------------------------------------------------------- */ +__weak void ide_outb(int dev, int port, unsigned char val) +{ + debug("ide_outb (dev= %d, port= 0x%x, val= 0x%02x) : @ 0x%08lx\n", + dev, port, val, + (ATA_CURR_BASE(dev) + CONFIG_SYS_ATA_PORT_ADDR(port))); -ulong ide_write(struct blk_desc *block_dev, lbaint_t blknr, lbaint_t blkcnt, - const void *buffer) +#if defined(CONFIG_IDE_AHB) + if (port) { + /* write command */ + ide_write_register(dev, port, val); + } else { + /* write data */ + outb(val, (ATA_CURR_BASE(dev))); + } +#else + outb(val, (ATA_CURR_BASE(dev) + CONFIG_SYS_ATA_PORT_ADDR(port))); +#endif +} + +__weak unsigned char ide_inb(int dev, int port) +{ + uchar val; + +#if defined(CONFIG_IDE_AHB) + val = ide_read_register(dev, port); +#else + val = inb((ATA_CURR_BASE(dev) + CONFIG_SYS_ATA_PORT_ADDR(port))); +#endif + + debug("ide_inb (dev= %d, port= 0x%x) : @ 0x%08lx -> 0x%02x\n", + dev, port, + (ATA_CURR_BASE(dev) + CONFIG_SYS_ATA_PORT_ADDR(port)), val); + return val; +} + +void ide_init(void) { - int device = block_dev->devnum; - ulong n = 0; unsigned char c; + int i, bus; -#ifdef CONFIG_LBA48 - unsigned char lba48 = 0; +#ifdef CONFIG_IDE_8xx_PCCARD + extern int ide_devices_found; /* Initialized in check_ide_device() */ +#endif /* CONFIG_IDE_8xx_PCCARD */ - if (blknr & 0x0000fffff0000000ULL) { - /* more than 28 bits used, use 48bit mode */ - lba48 = 1; +#ifdef CONFIG_IDE_PREINIT + WATCHDOG_RESET(); + + if (ide_preinit()) { + puts("ide_preinit failed\n"); + return; } -#endif +#endif /* CONFIG_IDE_PREINIT */ - ide_led(DEVICE_LED(device), 1); /* LED on */ + WATCHDOG_RESET(); - /* Select device + /* + * Reset the IDE just to be sure. + * Light LED's to show */ - ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device)); + ide_led((LED_IDE1 | LED_IDE2), 1); /* LED's on */ - while (blkcnt-- > 0) { + /* ATAPI Drives seems to need a proper IDE Reset */ + ide_reset(); - c = ide_wait(device, IDE_TIME_OUT); +#ifdef CONFIG_IDE_INIT_POSTRESET + WATCHDOG_RESET(); - if (c & ATA_STAT_BUSY) { - printf("IDE read: device %d not ready\n", device); - goto WR_OUT; - } -#ifdef CONFIG_LBA48 - if (lba48) { - /* write high bits */ - ide_outb(device, ATA_SECT_CNT, 0); - ide_outb(device, ATA_LBA_LOW, (blknr >> 24) & 0xFF); -#ifdef CONFIG_SYS_64BIT_LBA - ide_outb(device, ATA_LBA_MID, (blknr >> 32) & 0xFF); - ide_outb(device, ATA_LBA_HIGH, (blknr >> 40) & 0xFF); -#else - ide_outb(device, ATA_LBA_MID, 0); - ide_outb(device, ATA_LBA_HIGH, 0); -#endif + if (ide_init_postreset()) { + puts("ide_preinit_postreset failed\n"); + return; + } +#endif /* CONFIG_IDE_INIT_POSTRESET */ + + /* + * Wait for IDE to get ready. + * According to spec, this can take up to 31 seconds! + */ + for (bus = 0; bus < CONFIG_SYS_IDE_MAXBUS; ++bus) { + int dev = + bus * (CONFIG_SYS_IDE_MAXDEVICE / + CONFIG_SYS_IDE_MAXBUS); + +#ifdef CONFIG_IDE_8xx_PCCARD + /* Skip non-ide devices from probing */ + if ((ide_devices_found & (1 << bus)) == 0) { + ide_led((LED_IDE1 | LED_IDE2), 0); /* LED's off */ + continue; } #endif - ide_outb(device, ATA_SECT_CNT, 1); - ide_outb(device, ATA_LBA_LOW, (blknr >> 0) & 0xFF); - ide_outb(device, ATA_LBA_MID, (blknr >> 8) & 0xFF); - ide_outb(device, ATA_LBA_HIGH, (blknr >> 16) & 0xFF); + printf("Bus %d: ", bus); -#ifdef CONFIG_LBA48 - if (lba48) { - ide_outb(device, ATA_DEV_HD, - ATA_LBA | ATA_DEVICE(device)); - ide_outb(device, ATA_COMMAND, ATA_CMD_WRITE_EXT); + ide_bus_ok[bus] = 0; - } else -#endif - { - ide_outb(device, ATA_DEV_HD, ATA_LBA | - ATA_DEVICE(device) | ((blknr >> 24) & 0xF)); - ide_outb(device, ATA_COMMAND, ATA_CMD_WRITE); - } + /* Select device + */ + udelay(100000); /* 100 ms */ + ide_outb(dev, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(dev)); + udelay(100000); /* 100 ms */ + i = 0; + do { + udelay(10000); /* 10 ms */ - udelay(50); + c = ide_inb(dev, ATA_STATUS); + i++; + if (i > (ATA_RESET_TIME * 100)) { + puts("** Timeout **\n"); + /* LED's off */ + ide_led((LED_IDE1 | LED_IDE2), 0); + return; + } + if ((i >= 100) && ((i % 100) == 0)) + putc('.'); - /* can't take over 500 ms */ - c = ide_wait(device, IDE_TIME_OUT); + } while (c & ATA_STAT_BUSY); - if ((c & (ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR)) != - ATA_STAT_DRQ) { - printf("Error (no IRQ) dev %d blk " LBAF ": status " - "%#02x\n", device, blknr, c); - goto WR_OUT; + if (c & (ATA_STAT_BUSY | ATA_STAT_FAULT)) { + puts("not available "); + debug("Status = 0x%02X ", c); +#ifndef CONFIG_ATAPI /* ATAPI Devices do not set DRDY */ + } else if ((c & ATA_STAT_READY) == 0) { + puts("not available "); + debug("Status = 0x%02X ", c); +#endif + } else { + puts("OK "); + ide_bus_ok[bus] = 1; } - - ide_output_data(device, buffer, ATA_SECTORWORDS); - c = ide_inb(device, ATA_STATUS); /* clear IRQ */ - ++n; - ++blknr; - buffer += ATA_BLOCKSIZE; + WATCHDOG_RESET(); } -WR_OUT: - ide_led(DEVICE_LED(device), 0); /* LED off */ - return n; -} - -/* ------------------------------------------------------------------------- */ - -/* - * copy src to dest, skipping leading and trailing blanks and null - * terminate the string - * "len" is the size of available memory including the terminating '\0' - */ -static void ident_cpy(unsigned char *dst, unsigned char *src, - unsigned int len) -{ - unsigned char *end, *last; - last = dst; - end = src + len - 1; + putc('\n'); - /* reserve space for '\0' */ - if (len < 2) - goto OUT; + ide_led((LED_IDE1 | LED_IDE2), 0); /* LED's off */ - /* skip leading white space */ - while ((*src) && (src < end) && (*src == ' ')) - ++src; + curr_device = -1; + for (i = 0; i < CONFIG_SYS_IDE_MAXDEVICE; ++i) { + int led = (IDE_BUS(i) == 0) ? LED_IDE1 : LED_IDE2; + ide_dev_desc[i].type = DEV_TYPE_UNKNOWN; + ide_dev_desc[i].if_type = IF_TYPE_IDE; + ide_dev_desc[i].devnum = i; + ide_dev_desc[i].part_type = PART_TYPE_UNKNOWN; + ide_dev_desc[i].blksz = 0; + ide_dev_desc[i].log2blksz = + LOG2_INVALID(typeof(ide_dev_desc[i].log2blksz)); + ide_dev_desc[i].lba = 0; + ide_dev_desc[i].block_read = ide_read; + ide_dev_desc[i].block_write = ide_write; + if (!ide_bus_ok[IDE_BUS(i)]) + continue; + ide_led(led, 1); /* LED on */ + ide_ident(&ide_dev_desc[i]); + ide_led(led, 0); /* LED off */ + dev_print(&ide_dev_desc[i]); - /* copy string, omitting trailing white space */ - while ((*src) && (src < end)) { - *dst++ = *src; - if (*src++ != ' ') - last = dst; + if ((ide_dev_desc[i].lba > 0) && (ide_dev_desc[i].blksz > 0)) { + /* initialize partition type */ + part_init(&ide_dev_desc[i]); + if (curr_device < 0) + curr_device = i; + } } -OUT: - *last = '\0'; + WATCHDOG_RESET(); } /* ------------------------------------------------------------------------- */ -/* - * Wait until Busy bit is off, or timeout (in ms) - * Return last status - */ -static uchar ide_wait(int dev, ulong t) +#ifdef CONFIG_PARTITIONS +struct blk_desc *ide_get_dev(int dev) { - ulong delay = 10 * t; /* poll every 100 us */ - uchar c; - - while ((c = ide_inb(dev, ATA_STATUS)) & ATA_STAT_BUSY) { - udelay(100); - if (delay-- == 0) - break; - } - return c; + return (dev < CONFIG_SYS_IDE_MAXDEVICE) ? &ide_dev_desc[dev] : NULL; } +#endif /* ------------------------------------------------------------------------- */ -#ifdef CONFIG_IDE_RESET -extern void ide_set_reset(int idereset); - -static void ide_reset(void) +/* We only need to swap data if we are running on a big endian cpu. */ +#if defined(__LITTLE_ENDIAN) +__weak void ide_input_swap_data(int dev, ulong *sect_buf, int words) { - int i; - - curr_device = -1; - for (i = 0; i < CONFIG_SYS_IDE_MAXBUS; ++i) - ide_bus_ok[i] = 0; - for (i = 0; i < CONFIG_SYS_IDE_MAXDEVICE; ++i) - ide_dev_desc[i].type = DEV_TYPE_UNKNOWN; - - ide_set_reset(1); /* assert reset */ - - /* the reset signal shall be asserted for et least 25 us */ - udelay(25); - - WATCHDOG_RESET(); - - /* de-assert RESET signal */ - ide_set_reset(0); - - /* wait 250 ms */ - for (i = 0; i < 250; ++i) - udelay(1000); + ide_input_data(dev, sect_buf, words); } +#else +__weak void ide_input_swap_data(int dev, ulong *sect_buf, int words) +{ + volatile ushort *pbuf = + (ushort *)(ATA_CURR_BASE(dev) + ATA_DATA_REG); + ushort *dbuf = (ushort *)sect_buf; -#endif /* CONFIG_IDE_RESET */ - -/* ------------------------------------------------------------------------- */ + debug("in input swap data base for read is %lx\n", + (unsigned long) pbuf); -#if defined(CONFIG_OF_IDE_FIXUP) -int ide_device_present(int dev) -{ - if (dev >= CONFIG_SYS_IDE_MAXBUS) - return 0; - return (ide_dev_desc[dev].type == DEV_TYPE_UNKNOWN ? 0 : 1); + while (words--) { +#ifdef __MIPS__ + *dbuf++ = swab16p((u16 *)pbuf); + *dbuf++ = swab16p((u16 *)pbuf); +#else + *dbuf++ = ld_le16(pbuf); + *dbuf++ = ld_le16(pbuf); +#endif /* !MIPS */ + } } -#endif -/* ------------------------------------------------------------------------- */ +#endif /* __LITTLE_ENDIAN */ -#ifdef CONFIG_ATAPI -/**************************************************************************** - * ATAPI Support - */ #if defined(CONFIG_IDE_SWAP_IO) -/* since ATAPI may use commands with not 4 bytes alligned length - * we have our own transfer functions, 2 bytes alligned */ -__weak void ide_output_data_shorts(int dev, ushort *sect_buf, int shorts) +__weak void ide_output_data(int dev, const ulong *sect_buf, int words) { ushort *dbuf; volatile ushort *pbuf; - pbuf = (ushort *) (ATA_CURR_BASE(dev) + ATA_DATA_REG); - dbuf = (ushort *) sect_buf; - - debug("in output data shorts base for read is %lx\n", - (unsigned long) pbuf); - - while (shorts--) { + pbuf = (ushort *)(ATA_CURR_BASE(dev) + ATA_DATA_REG); + dbuf = (ushort *)sect_buf; + while (words--) { + EIEIO; + *pbuf = *dbuf++; EIEIO; *pbuf = *dbuf++; } } +#else /* ! CONFIG_IDE_SWAP_IO */ +__weak void ide_output_data(int dev, const ulong *sect_buf, int words) +{ +#if defined(CONFIG_IDE_AHB) + ide_write_data(dev, sect_buf, words); +#else + outsw(ATA_CURR_BASE(dev) + ATA_DATA_REG, sect_buf, words << 1); +#endif +} +#endif /* CONFIG_IDE_SWAP_IO */ -__weak void ide_input_data_shorts(int dev, ushort *sect_buf, int shorts) +#if defined(CONFIG_IDE_SWAP_IO) +__weak void ide_input_data(int dev, ulong *sect_buf, int words) { ushort *dbuf; volatile ushort *pbuf; - pbuf = (ushort *) (ATA_CURR_BASE(dev) + ATA_DATA_REG); - dbuf = (ushort *) sect_buf; + pbuf = (ushort *)(ATA_CURR_BASE(dev) + ATA_DATA_REG); + dbuf = (ushort *)sect_buf; - debug("in input data shorts base for read is %lx\n", - (unsigned long) pbuf); + debug("in input data base for read is %lx\n", (unsigned long) pbuf); - while (shorts--) { + while (words--) { + EIEIO; + *dbuf++ = *pbuf; EIEIO; *dbuf++ = *pbuf; } } - #else /* ! CONFIG_IDE_SWAP_IO */ -__weak void ide_output_data_shorts(int dev, ushort *sect_buf, int shorts) -{ - outsw(ATA_CURR_BASE(dev) + ATA_DATA_REG, sect_buf, shorts); -} - -__weak void ide_input_data_shorts(int dev, ushort *sect_buf, int shorts) +__weak void ide_input_data(int dev, ulong *sect_buf, int words) { - insw(ATA_CURR_BASE(dev) + ATA_DATA_REG, sect_buf, shorts); +#if defined(CONFIG_IDE_AHB) + ide_read_data(dev, sect_buf, words); +#else + insw(ATA_CURR_BASE(dev) + ATA_DATA_REG, sect_buf, words << 1); +#endif } #endif /* CONFIG_IDE_SWAP_IO */ -/* - * Wait until (Status & mask) == res, or timeout (in ms) - * Return last status - * This is used since some ATAPI CD ROMs clears their Busy Bit first - * and then they set their DRQ Bit - */ -static uchar atapi_wait_mask(int dev, ulong t, uchar mask, uchar res) +/* ------------------------------------------------------------------------- */ + +ulong ide_read(struct blk_desc *block_dev, lbaint_t blknr, lbaint_t blkcnt, + void *buffer) { - ulong delay = 10 * t; /* poll every 100 us */ - uchar c; + int device = block_dev->devnum; + ulong n = 0; + unsigned char c; + unsigned char pwrsave = 0; /* power save */ - /* prevents to read the status before valid */ - c = ide_inb(dev, ATA_DEV_CTL); +#ifdef CONFIG_LBA48 + unsigned char lba48 = 0; - while (((c = ide_inb(dev, ATA_STATUS)) & mask) != res) { - /* break if error occurs (doesn't make sense to wait more) */ - if ((c & ATA_STAT_ERR) == ATA_STAT_ERR) - break; - udelay(100); - if (delay-- == 0) - break; + if (blknr & 0x0000fffff0000000ULL) { + /* more than 28 bits used, use 48bit mode */ + lba48 = 1; } - return c; -} - -/* - * issue an atapi command - */ -unsigned char atapi_issue(int device, unsigned char *ccb, int ccblen, - unsigned char *buffer, int buflen) -{ - unsigned char c, err, mask, res; - int n; +#endif + debug("ide_read dev %d start " LBAF ", blocks " LBAF " buffer at %lX\n", + device, blknr, blkcnt, (ulong) buffer); ide_led(DEVICE_LED(device), 1); /* LED on */ /* Select device */ - mask = ATA_STAT_BUSY | ATA_STAT_DRQ; - res = 0; - ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device)); - c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res); - if ((c & mask) != res) { - printf("ATAPI_ISSUE: device %d not ready status %X\n", device, - c); - err = 0xFF; - goto AI_OUT; - } - /* write taskfile */ - ide_outb(device, ATA_ERROR_REG, 0); /* no DMA, no overlaped */ - ide_outb(device, ATA_SECT_CNT, 0); - ide_outb(device, ATA_SECT_NUM, 0); - ide_outb(device, ATA_CYL_LOW, (unsigned char) (buflen & 0xFF)); - ide_outb(device, ATA_CYL_HIGH, - (unsigned char) ((buflen >> 8) & 0xFF)); ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device)); + c = ide_wait(device, IDE_TIME_OUT); - ide_outb(device, ATA_COMMAND, ATAPI_CMD_PACKET); - udelay(50); - - mask = ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR; - res = ATA_STAT_DRQ; - c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res); - - if ((c & mask) != res) { /* DRQ must be 1, BSY 0 */ - printf("ATAPI_ISSUE: Error (no IRQ) before sending ccb dev %d status 0x%02x\n", - device, c); - err = 0xFF; - goto AI_OUT; - } - - /* write command block */ - ide_output_data_shorts(device, (unsigned short *) ccb, ccblen / 2); - - /* ATAPI Command written wait for completition */ - udelay(5000); /* device must set bsy */ - - mask = ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR; - /* - * if no data wait for DRQ = 0 BSY = 0 - * if data wait for DRQ = 1 BSY = 0 - */ - res = 0; - if (buflen) - res = ATA_STAT_DRQ; - c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res); - if ((c & mask) != res) { - if (c & ATA_STAT_ERR) { - err = (ide_inb(device, ATA_ERROR_REG)) >> 4; - debug("atapi_issue 1 returned sense key %X status %02X\n", - err, c); - } else { - printf("ATAPI_ISSUE: (no DRQ) after sending ccb (%x) status 0x%02x\n", - ccb[0], c); - err = 0xFF; - } - goto AI_OUT; - } - n = ide_inb(device, ATA_CYL_HIGH); - n <<= 8; - n += ide_inb(device, ATA_CYL_LOW); - if (n > buflen) { - printf("ERROR, transfer bytes %d requested only %d\n", n, - buflen); - err = 0xff; - goto AI_OUT; - } - if ((n == 0) && (buflen < 0)) { - printf("ERROR, transfer bytes %d requested %d\n", n, buflen); - err = 0xff; - goto AI_OUT; - } - if (n != buflen) { - debug("WARNING, transfer bytes %d not equal with requested %d\n", - n, buflen); - } - if (n != 0) { /* data transfer */ - debug("ATAPI_ISSUE: %d Bytes to transfer\n", n); - /* we transfer shorts */ - n >>= 1; - /* ok now decide if it is an in or output */ - if ((ide_inb(device, ATA_SECT_CNT) & 0x02) == 0) { - debug("Write to device\n"); - ide_output_data_shorts(device, - (unsigned short *) buffer, n); - } else { - debug("Read from device @ %p shorts %d\n", buffer, n); - ide_input_data_shorts(device, - (unsigned short *) buffer, n); - } - } - udelay(5000); /* seems that some CD ROMs need this... */ - mask = ATA_STAT_BUSY | ATA_STAT_ERR; - res = 0; - c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res); - if ((c & ATA_STAT_ERR) == ATA_STAT_ERR) { - err = (ide_inb(device, ATA_ERROR_REG) >> 4); - debug("atapi_issue 2 returned sense key %X status %X\n", err, - c); - } else { - err = 0; + if (c & ATA_STAT_BUSY) { + printf("IDE read: device %d not ready\n", device); + goto IDE_READ_E; } -AI_OUT: - ide_led(DEVICE_LED(device), 0); /* LED off */ - return err; -} - -/* - * sending the command to atapi_issue. If an status other than good - * returns, an request_sense will be issued - */ - -#define ATAPI_DRIVE_NOT_READY 100 -#define ATAPI_UNIT_ATTN 10 - -unsigned char atapi_issue_autoreq(int device, - unsigned char *ccb, - int ccblen, - unsigned char *buffer, int buflen) -{ - unsigned char sense_data[18], sense_ccb[12]; - unsigned char res, key, asc, ascq; - int notready, unitattn; - - unitattn = ATAPI_UNIT_ATTN; - notready = ATAPI_DRIVE_NOT_READY; - -retry: - res = atapi_issue(device, ccb, ccblen, buffer, buflen); - if (res == 0) - return 0; /* Ok */ - - if (res == 0xFF) - return 0xFF; /* error */ - - debug("(auto_req)atapi_issue returned sense key %X\n", res); - - memset(sense_ccb, 0, sizeof(sense_ccb)); - memset(sense_data, 0, sizeof(sense_data)); - sense_ccb[0] = ATAPI_CMD_REQ_SENSE; - sense_ccb[4] = 18; /* allocation Length */ - - res = atapi_issue(device, sense_ccb, 12, sense_data, 18); - key = (sense_data[2] & 0xF); - asc = (sense_data[12]); - ascq = (sense_data[13]); - debug("ATAPI_CMD_REQ_SENSE returned %x\n", res); - debug(" Sense page: %02X key %02X ASC %02X ASCQ %02X\n", - sense_data[0], key, asc, ascq); + /* first check if the drive is in Powersaving mode, if yes, + * increase the timeout value */ + ide_outb(device, ATA_COMMAND, ATA_CMD_CHK_PWR); + udelay(50); - if ((key == 0)) - return 0; /* ok device ready */ + c = ide_wait(device, IDE_TIME_OUT); /* can't take over 500 ms */ - if ((key == 6) || (asc == 0x29) || (asc == 0x28)) { /* Unit Attention */ - if (unitattn-- > 0) { - udelay(200 * 1000); - goto retry; - } - printf("Unit Attention, tried %d\n", ATAPI_UNIT_ATTN); - goto error; - } - if ((asc == 0x4) && (ascq == 0x1)) { - /* not ready, but will be ready soon */ - if (notready-- > 0) { - udelay(200 * 1000); - goto retry; - } - printf("Drive not ready, tried %d times\n", - ATAPI_DRIVE_NOT_READY); - goto error; + if (c & ATA_STAT_BUSY) { + printf("IDE read: device %d not ready\n", device); + goto IDE_READ_E; } - if (asc == 0x3a) { - debug("Media not present\n"); - goto error; + if ((c & ATA_STAT_ERR) == ATA_STAT_ERR) { + printf("No Powersaving mode %X\n", c); + } else { + c = ide_inb(device, ATA_SECT_CNT); + debug("Powersaving %02X\n", c); + if (c == 0) + pwrsave = 1; } - printf("ERROR: Unknown Sense key %02X ASC %02X ASCQ %02X\n", key, asc, - ascq); -error: - debug("ERROR Sense key %02X ASC %02X ASCQ %02X\n", key, asc, ascq); - return 0xFF; -} + while (blkcnt-- > 0) { -static void atapi_inquiry(struct blk_desc *dev_desc) -{ - unsigned char ccb[12]; /* Command descriptor block */ - unsigned char iobuf[64]; /* temp buf */ - unsigned char c; - int device; + c = ide_wait(device, IDE_TIME_OUT); - device = dev_desc->devnum; - dev_desc->type = DEV_TYPE_UNKNOWN; /* not yet valid */ - dev_desc->block_read = atapi_read; + if (c & ATA_STAT_BUSY) { + printf("IDE read: device %d not ready\n", device); + break; + } +#ifdef CONFIG_LBA48 + if (lba48) { + /* write high bits */ + ide_outb(device, ATA_SECT_CNT, 0); + ide_outb(device, ATA_LBA_LOW, (blknr >> 24) & 0xFF); +#ifdef CONFIG_SYS_64BIT_LBA + ide_outb(device, ATA_LBA_MID, (blknr >> 32) & 0xFF); + ide_outb(device, ATA_LBA_HIGH, (blknr >> 40) & 0xFF); +#else + ide_outb(device, ATA_LBA_MID, 0); + ide_outb(device, ATA_LBA_HIGH, 0); +#endif + } +#endif + ide_outb(device, ATA_SECT_CNT, 1); + ide_outb(device, ATA_LBA_LOW, (blknr >> 0) & 0xFF); + ide_outb(device, ATA_LBA_MID, (blknr >> 8) & 0xFF); + ide_outb(device, ATA_LBA_HIGH, (blknr >> 16) & 0xFF); - memset(ccb, 0, sizeof(ccb)); - memset(iobuf, 0, sizeof(iobuf)); +#ifdef CONFIG_LBA48 + if (lba48) { + ide_outb(device, ATA_DEV_HD, + ATA_LBA | ATA_DEVICE(device)); + ide_outb(device, ATA_COMMAND, ATA_CMD_READ_EXT); - ccb[0] = ATAPI_CMD_INQUIRY; - ccb[4] = 40; /* allocation Legnth */ - c = atapi_issue_autoreq(device, ccb, 12, (unsigned char *) iobuf, 40); + } else +#endif + { + ide_outb(device, ATA_DEV_HD, ATA_LBA | + ATA_DEVICE(device) | ((blknr >> 24) & 0xF)); + ide_outb(device, ATA_COMMAND, ATA_CMD_READ); + } - debug("ATAPI_CMD_INQUIRY returned %x\n", c); - if (c != 0) - return; + udelay(50); - /* copy device ident strings */ - ident_cpy((unsigned char *) dev_desc->vendor, &iobuf[8], 8); - ident_cpy((unsigned char *) dev_desc->product, &iobuf[16], 16); - ident_cpy((unsigned char *) dev_desc->revision, &iobuf[32], 5); + if (pwrsave) { + /* may take up to 4 sec */ + c = ide_wait(device, IDE_SPIN_UP_TIME_OUT); + pwrsave = 0; + } else { + /* can't take over 500 ms */ + c = ide_wait(device, IDE_TIME_OUT); + } - dev_desc->lun = 0; - dev_desc->lba = 0; - dev_desc->blksz = 0; - dev_desc->log2blksz = LOG2_INVALID(typeof(dev_desc->log2blksz)); - dev_desc->type = iobuf[0] & 0x1f; + if ((c & (ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR)) != + ATA_STAT_DRQ) { + printf("Error (no IRQ) dev %d blk " LBAF + ": status %#02x\n", device, blknr, c); + break; + } - if ((iobuf[1] & 0x80) == 0x80) - dev_desc->removable = 1; - else - dev_desc->removable = 0; + ide_input_data(device, buffer, ATA_SECTORWORDS); + (void) ide_inb(device, ATA_STATUS); /* clear IRQ */ - memset(ccb, 0, sizeof(ccb)); - memset(iobuf, 0, sizeof(iobuf)); - ccb[0] = ATAPI_CMD_START_STOP; - ccb[4] = 0x03; /* start */ + ++n; + ++blknr; + buffer += ATA_BLOCKSIZE; + } +IDE_READ_E: + ide_led(DEVICE_LED(device), 0); /* LED off */ + return n; +} - c = atapi_issue_autoreq(device, ccb, 12, (unsigned char *) iobuf, 0); +/* ------------------------------------------------------------------------- */ - debug("ATAPI_CMD_START_STOP returned %x\n", c); - if (c != 0) - return; - memset(ccb, 0, sizeof(ccb)); - memset(iobuf, 0, sizeof(iobuf)); - c = atapi_issue_autoreq(device, ccb, 12, (unsigned char *) iobuf, 0); +ulong ide_write(struct blk_desc *block_dev, lbaint_t blknr, lbaint_t blkcnt, + const void *buffer) +{ + int device = block_dev->devnum; + ulong n = 0; + unsigned char c; - debug("ATAPI_CMD_UNIT_TEST_READY returned %x\n", c); - if (c != 0) - return; +#ifdef CONFIG_LBA48 + unsigned char lba48 = 0; - memset(ccb, 0, sizeof(ccb)); - memset(iobuf, 0, sizeof(iobuf)); - ccb[0] = ATAPI_CMD_READ_CAP; - c = atapi_issue_autoreq(device, ccb, 12, (unsigned char *) iobuf, 8); - debug("ATAPI_CMD_READ_CAP returned %x\n", c); - if (c != 0) - return; + if (blknr & 0x0000fffff0000000ULL) { + /* more than 28 bits used, use 48bit mode */ + lba48 = 1; + } +#endif - debug("Read Cap: LBA %02X%02X%02X%02X blksize %02X%02X%02X%02X\n", - iobuf[0], iobuf[1], iobuf[2], iobuf[3], - iobuf[4], iobuf[5], iobuf[6], iobuf[7]); + ide_led(DEVICE_LED(device), 1); /* LED on */ - dev_desc->lba = ((unsigned long) iobuf[0] << 24) + - ((unsigned long) iobuf[1] << 16) + - ((unsigned long) iobuf[2] << 8) + ((unsigned long) iobuf[3]); - dev_desc->blksz = ((unsigned long) iobuf[4] << 24) + - ((unsigned long) iobuf[5] << 16) + - ((unsigned long) iobuf[6] << 8) + ((unsigned long) iobuf[7]); - dev_desc->log2blksz = LOG2(dev_desc->blksz); -#ifdef CONFIG_LBA48 - /* ATAPI devices cannot use 48bit addressing (ATA/ATAPI v7) */ - dev_desc->lba48 = 0; -#endif - return; -} + /* Select device + */ + ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device)); + while (blkcnt-- > 0) { + c = ide_wait(device, IDE_TIME_OUT); -/* - * atapi_read: - * we transfer only one block per command, since the multiple DRQ per - * command is not yet implemented - */ -#define ATAPI_READ_MAX_BYTES 2048 /* we read max 2kbytes */ -#define ATAPI_READ_BLOCK_SIZE 2048 /* assuming CD part */ -#define ATAPI_READ_MAX_BLOCK (ATAPI_READ_MAX_BYTES/ATAPI_READ_BLOCK_SIZE) + if (c & ATA_STAT_BUSY) { + printf("IDE read: device %d not ready\n", device); + goto WR_OUT; + } +#ifdef CONFIG_LBA48 + if (lba48) { + /* write high bits */ + ide_outb(device, ATA_SECT_CNT, 0); + ide_outb(device, ATA_LBA_LOW, (blknr >> 24) & 0xFF); +#ifdef CONFIG_SYS_64BIT_LBA + ide_outb(device, ATA_LBA_MID, (blknr >> 32) & 0xFF); + ide_outb(device, ATA_LBA_HIGH, (blknr >> 40) & 0xFF); +#else + ide_outb(device, ATA_LBA_MID, 0); + ide_outb(device, ATA_LBA_HIGH, 0); +#endif + } +#endif + ide_outb(device, ATA_SECT_CNT, 1); + ide_outb(device, ATA_LBA_LOW, (blknr >> 0) & 0xFF); + ide_outb(device, ATA_LBA_MID, (blknr >> 8) & 0xFF); + ide_outb(device, ATA_LBA_HIGH, (blknr >> 16) & 0xFF); -ulong atapi_read(struct blk_desc *block_dev, lbaint_t blknr, lbaint_t blkcnt, - void *buffer) -{ - int device = block_dev->devnum; - ulong n = 0; - unsigned char ccb[12]; /* Command descriptor block */ - ulong cnt; +#ifdef CONFIG_LBA48 + if (lba48) { + ide_outb(device, ATA_DEV_HD, + ATA_LBA | ATA_DEVICE(device)); + ide_outb(device, ATA_COMMAND, ATA_CMD_WRITE_EXT); - debug("atapi_read dev %d start " LBAF " blocks " LBAF - " buffer at %lX\n", device, blknr, blkcnt, (ulong) buffer); + } else +#endif + { + ide_outb(device, ATA_DEV_HD, ATA_LBA | + ATA_DEVICE(device) | ((blknr >> 24) & 0xF)); + ide_outb(device, ATA_COMMAND, ATA_CMD_WRITE); + } - do { - if (blkcnt > ATAPI_READ_MAX_BLOCK) - cnt = ATAPI_READ_MAX_BLOCK; - else - cnt = blkcnt; + udelay(50); - ccb[0] = ATAPI_CMD_READ_12; - ccb[1] = 0; /* reserved */ - ccb[2] = (unsigned char) (blknr >> 24) & 0xFF; /* MSB Block */ - ccb[3] = (unsigned char) (blknr >> 16) & 0xFF; /* */ - ccb[4] = (unsigned char) (blknr >> 8) & 0xFF; - ccb[5] = (unsigned char) blknr & 0xFF; /* LSB Block */ - ccb[6] = (unsigned char) (cnt >> 24) & 0xFF; /* MSB Block cnt */ - ccb[7] = (unsigned char) (cnt >> 16) & 0xFF; - ccb[8] = (unsigned char) (cnt >> 8) & 0xFF; - ccb[9] = (unsigned char) cnt & 0xFF; /* LSB Block */ - ccb[10] = 0; /* reserved */ - ccb[11] = 0; /* reserved */ + /* can't take over 500 ms */ + c = ide_wait(device, IDE_TIME_OUT); - if (atapi_issue_autoreq(device, ccb, 12, - (unsigned char *) buffer, - cnt * ATAPI_READ_BLOCK_SIZE) - == 0xFF) { - return n; + if ((c & (ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR)) != + ATA_STAT_DRQ) { + printf("Error (no IRQ) dev %d blk " LBAF + ": status %#02x\n", device, blknr, c); + goto WR_OUT; } - n += cnt; - blkcnt -= cnt; - blknr += cnt; - buffer += (cnt * ATAPI_READ_BLOCK_SIZE); - } while (blkcnt > 0); + + ide_output_data(device, buffer, ATA_SECTORWORDS); + c = ide_inb(device, ATA_STATUS); /* clear IRQ */ + ++n; + ++blknr; + buffer += ATA_BLOCKSIZE; + } +WR_OUT: + ide_led(DEVICE_LED(device), 0); /* LED off */ return n; } /* ------------------------------------------------------------------------- */ -#endif /* CONFIG_ATAPI */ +#if defined(CONFIG_OF_IDE_FIXUP) +int ide_device_present(int dev) +{ + if (dev >= CONFIG_SYS_IDE_MAXBUS) + return 0; + return ide_dev_desc[dev].type == DEV_TYPE_UNKNOWN ? 0 : 1; +} +#endif +/* ------------------------------------------------------------------------- */ U_BOOT_CMD(ide, 5, 1, do_ide, "IDE sub-system", -- cgit v1.2.1