[U-Boot] [PATCH 12/44] dm: ide: Remove the forward declarations

Simon Glass
2016-04-10T02:45:04Z

Reorder the code to avoid needing forward declarations. Fix up code style
as needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

cmd/ide.c | 1924 ++++++++++++++++++++++++++++++-------------------------------
1 file changed, 946 insertions(+), 978 deletions(-)

diff --git a/cmd/ide.c b/cmd/ide.c
index a46d0ac..db26f43 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:
- /*@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",
--
2.8.0.rc3.226.g39d4020