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 <sjg@chromium.org>
diff --git a/cmd/ide.c b/cmd/ide.c
index a46d0ac..db26f43 100644
--- a/cmd/ide.c
+++ b/cmd/ide.c
@@ -57,34 +57,686 @@
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);
+
+static void ide_reset(void)
+{
+ 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);
+}
+#else
+#define ide_reset() /* dummy */
+#endif /* CONFIG_IDE_RESET */
+
+/*
+ * 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;
+
+ while ((c = ide_inb(dev, ATA_STATUS)) & ATA_STAT_BUSY) {
+ udelay(100);
+ if (delay-- == 0)
+ break;
+ }
+ return c;
+}
+
+/*
+ * 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;
+
+ /* reserve space for '\0' */
+ if (len < 2)
+ goto OUT;
+
+ /* skip leading white space */
+ while ((*src) && (src < end) && (*src == ' '))
+ ++src;
+
+ /* copy string, omitting trailing white space */
+ while ((*src) && (src < end)) {
+ *dst++ = *src;
+ if (*src++ != ' ')
+ last = dst;
+ }
+OUT:
+ *last = '\0';
+}
+
+#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)
+{
+ 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--) {
+ EIEIO;
+ *pbuf = *dbuf++;
+ }
+}
+
+__weak void ide_input_data_shorts(int dev, ushort *sect_buf, int shorts)
+{
+ ushort *dbuf;
+ volatile ushort *pbuf;
+
+ 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);
+
+ while (shorts--) {
+ 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)
+{
+ insw(ATA_CURR_BASE(dev) + ATA_DATA_REG, sect_buf, shorts);
+}
+
+#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 delay = 10 * t; /* poll every 100 us */
+ uchar c;
+
+ /* 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;
+ }
+ 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;
+
+ 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));
+
+ 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;
+ }
+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);
+
+ 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;
+ }
+ 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)
+
+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;
+
+ debug("atapi_read dev %d start " LBAF " blocks " LBAF
+ " buffer at %lX\n", device, blknr, blkcnt, (ulong) buffer);
+
+ 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;
+}
+
+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;
+
+ device = dev_desc->devnum;
+ dev_desc->type = DEV_TYPE_UNKNOWN; /* not yet valid */
+ dev_desc->block_read = atapi_read;
+
+ 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);
+
+ debug("ATAPI_CMD_INQUIRY returned %x\n", c);
+ if (c != 0)
+ return;
+
+ /* 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);
+
+ 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 ((iobuf[1] & 0x80) == 0x80)
+ dev_desc->removable = 1;
+ else
+ dev_desc->removable = 0;
+
+ memset(ccb, 0, sizeof(ccb));
+ memset(iobuf, 0, sizeof(iobuf));
+ ccb[0] = ATAPI_CMD_START_STOP;
+ ccb[4] = 0x03; /* start */
+
+ 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_ATAPI */
+
+static void ide_ident(struct blk_desc *dev_desc)
+{
+ unsigned char c;
+ hd_driveid_t iop;
+
+#ifdef CONFIG_ATAPI
+ int retries = 0;
+#endif
+ int device;
+
+ device = dev_desc->devnum;
+ printf(" Device %d: ", device);
+
+ ide_led(DEVICE_LED(device), 1); /* LED on */
+ /* Select device
+ */
+ ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
+ dev_desc->if_type = IF_TYPE_IDE;
+#ifdef CONFIG_ATAPI
+
+ retries = 0;
+
+ /* Warning: This will be tricky to read */
+ while (retries <= 1) {
+ /* check signature */
+ if ((ide_inb(device, ATA_SECT_CNT) == 0x01) &&
+ (ide_inb(device, ATA_SECT_NUM) == 0x01) &&
+ (ide_inb(device, ATA_CYL_LOW) == 0x14) &&
+ (ide_inb(device, ATA_CYL_HIGH) == 0xEB)) {
+ /* ATAPI Signature found */
+ dev_desc->if_type = IF_TYPE_ATAPI;
+ /*
+ * Start Ident Command
+ */
+ ide_outb(device, ATA_COMMAND, ATAPI_CMD_IDENT);
+ /*
+ * Wait for completion - ATAPI devices need more time
+ * to become ready
+ */
+ c = ide_wait(device, ATAPI_TIME_OUT);
+ } else
+#endif
+ {
+ /*
+ * Start Ident Command
+ */
+ ide_outb(device, ATA_COMMAND, ATA_CMD_IDENT);
+
+ /*
+ * Wait for completion
+ */
+ c = ide_wait(device, IDE_TIME_OUT);
+ }
+ ide_led(DEVICE_LED(device), 0); /* LED off */
+
+ if (((c & ATA_STAT_DRQ) == 0) ||
+ ((c & (ATA_STAT_FAULT | ATA_STAT_ERR)) != 0)) {
+#ifdef CONFIG_ATAPI
+ {
+ /*
+ * Need to soft reset the device
+ * in case it's an ATAPI...
+ */
+ debug("Retrying...\n");
+ ide_outb(device, ATA_DEV_HD,
+ ATA_LBA | ATA_DEVICE(device));
+ udelay(100000);
+ ide_outb(device, ATA_COMMAND, 0x08);
+ udelay(500000); /* 500 ms */
+ }
+ /*
+ * Select device
+ */
+ ide_outb(device, ATA_DEV_HD,
+ ATA_LBA | ATA_DEVICE(device));
+ retries++;
+#else
+ return;
+#endif
+ }
+#ifdef CONFIG_ATAPI
+ else
+ break;
+ } /* see above - ugly to read */
+
+ if (retries == 2) /* Not found */
+ return;
+#endif
+
+ ide_input_swap_data(device, (ulong *)&iop, ATA_SECTORWORDS);
+
+ ident_cpy((unsigned char *)dev_desc->revision, iop.fw_rev,
+ sizeof(dev_desc->revision));
+ ident_cpy((unsigned char *)dev_desc->vendor, iop.model,
+ sizeof(dev_desc->vendor));
+ ident_cpy((unsigned char *)dev_desc->product, iop.serial_no,
+ sizeof(dev_desc->product));
+#ifdef __LITTLE_ENDIAN
+ /*
+ * firmware revision, model, and serial number have Big Endian Byte
+ * order in Word. Convert all three to little endian.
+ *
+ * See CF+ and CompactFlash Specification Revision 2.0:
+ * 6.2.1.6: Identify Drive, Table 39 for more details
+ */
+
+ strswab(dev_desc->revision);
+ strswab(dev_desc->vendor);
+ strswab(dev_desc->product);
+#endif /* __LITTLE_ENDIAN */
+
+ if ((iop.config & 0x0080) == 0x0080)
+ dev_desc->removable = 1;
+ else
+ dev_desc->removable = 0;
+
+#ifdef CONFIG_ATAPI
+ if (dev_desc->if_type == IF_TYPE_ATAPI) {
+ atapi_inquiry(dev_desc);
+ return;
+ }
+#endif /* CONFIG_ATAPI */
+
+#ifdef __BIG_ENDIAN
+ /* swap shorts */
+ dev_desc->lba = (iop.lba_capacity << 16) | (iop.lba_capacity >> 16);
+#else /* ! __BIG_ENDIAN */
+ /*
+ * do not swap shorts on little endian
+ *
+ * See CF+ and CompactFlash Specification Revision 2.0:
+ * 6.2.1.6: Identfy Drive, Table 39, Word Address 57-58 for details.
+ */
+ dev_desc->lba = iop.lba_capacity;
+#endif /* __BIG_ENDIAN */
+
+#ifdef CONFIG_LBA48
+ if (iop.command_set_2 & 0x0400) { /* LBA 48 support */
+ dev_desc->lba48 = 1;
+ dev_desc->lba = (unsigned long long) iop.lba48_capacity[0] |
+ ((unsigned long long) iop.lba48_capacity[1] << 16) |
+ ((unsigned long long) iop.lba48_capacity[2] << 32) |
+ ((unsigned long long) iop.lba48_capacity[3] << 48);
+ } else {
+ dev_desc->lba48 = 0;
+ }
+#endif /* CONFIG_LBA48 */
+ /* assuming HD */
+ dev_desc->type = DEV_TYPE_HARDDISK;
+ dev_desc->blksz = ATA_BLOCKSIZE;
+ dev_desc->log2blksz = LOG2(dev_desc->blksz);
+ dev_desc->lun = 0; /* just to fill something in... */
+
+#if 0 /* only used to test the powersaving mode,
+ * if enabled, the drive goes after 5 sec
+ * in standby mode */
+ ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
+ c = ide_wait(device, IDE_TIME_OUT);
+ ide_outb(device, ATA_SECT_CNT, 1);
+ ide_outb(device, ATA_LBA_LOW, 0);
+ ide_outb(device, ATA_LBA_MID, 0);
+ ide_outb(device, ATA_LBA_HIGH, 0);
+ ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
+ ide_outb(device, ATA_COMMAND, 0xe3);
+ udelay(50);
+ c = ide_wait(device, IDE_TIME_OUT); /* can't take over 500 ms */
+#endif
+}
/* ------------------------------------------------------------------------- */
@@ -120,8 +772,8 @@
return 0;
} else if (strncmp(argv[1], "dev", 3) == 0) {
- if ((curr_device < 0)
- || (curr_device >= CONFIG_SYS_IDE_MAXDEVICE)) {
+ if (curr_device < 0 ||
+ curr_device >= CONFIG_SYS_IDE_MAXDEVICE) {
puts("\nno IDE devices available\n");
return 1;
}
@@ -235,8 +887,8 @@
n = ide_write(&ide_dev_desc[curr_device], blk, cnt,
(ulong *)addr);
- printf("%ld blocks written: %s\n",
- n, (n == cnt) ? "OK" : "ERROR");
+ printf("%ld blocks written: %s\n", n,
+ n == cnt ? "OK" : "ERROR");
if (n == cnt)
return 0;
else
@@ -272,12 +924,6 @@
#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)
@@ -465,16 +1111,16 @@
__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;
+ (ushort *)(ATA_CURR_BASE(dev) + ATA_DATA_REG);
+ ushort *dbuf = (ushort *)sect_buf;
debug("in input swap data base for read is %lx\n",
(unsigned long) pbuf);
while (words--) {
#ifdef __MIPS__
- *dbuf++ = swab16p((u16 *) pbuf);
- *dbuf++ = swab16p((u16 *) pbuf);
+ *dbuf++ = swab16p((u16 *)pbuf);
+ *dbuf++ = swab16p((u16 *)pbuf);
#else
*dbuf++ = ld_le16(pbuf);
*dbuf++ = ld_le16(pbuf);
@@ -490,8 +1136,8 @@
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;
while (words--) {
EIEIO;
*pbuf = *dbuf++;
@@ -516,8 +1162,8 @@
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 base for read is %lx\n", (unsigned long) pbuf);
@@ -540,178 +1186,6 @@
#endif /* CONFIG_IDE_SWAP_IO */
-/* -------------------------------------------------------------------------
- */
-static void ide_ident(struct blk_desc *dev_desc)
-{
- unsigned char c;
- hd_driveid_t iop;
-
-#ifdef CONFIG_ATAPI
- int retries = 0;
-#endif
- int device;
-
- device = dev_desc->devnum;
- printf(" Device %d: ", device);
-
- ide_led(DEVICE_LED(device), 1); /* LED on */
- /* Select device
- */
- ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
- dev_desc->if_type = IF_TYPE_IDE;
-#ifdef CONFIG_ATAPI
-
- retries = 0;
-
- /* Warning: This will be tricky to read */
- while (retries <= 1) {
- /* check signature */
- if ((ide_inb(device, ATA_SECT_CNT) == 0x01) &&
- (ide_inb(device, ATA_SECT_NUM) == 0x01) &&
- (ide_inb(device, ATA_CYL_LOW) == 0x14) &&
- (ide_inb(device, ATA_CYL_HIGH) == 0xEB)) {
- /* ATAPI Signature found */
- dev_desc->if_type = IF_TYPE_ATAPI;
- /*
- * Start Ident Command
- */
- ide_outb(device, ATA_COMMAND, ATAPI_CMD_IDENT);
- /*
- * Wait for completion - ATAPI devices need more time
- * to become ready
- */
- c = ide_wait(device, ATAPI_TIME_OUT);
- } else
-#endif
- {
- /*
- * Start Ident Command
- */
- ide_outb(device, ATA_COMMAND, ATA_CMD_IDENT);
-
- /*
- * Wait for completion
- */
- c = ide_wait(device, IDE_TIME_OUT);
- }
- ide_led(DEVICE_LED(device), 0); /* LED off */
-
- if (((c & ATA_STAT_DRQ) == 0) ||
- ((c & (ATA_STAT_FAULT | ATA_STAT_ERR)) != 0)) {
-#ifdef CONFIG_ATAPI
- {
- /*
- * Need to soft reset the device
- * in case it's an ATAPI...
- */
- debug("Retrying...\n");
- ide_outb(device, ATA_DEV_HD,
- ATA_LBA | ATA_DEVICE(device));
- udelay(100000);
- ide_outb(device, ATA_COMMAND, 0x08);
- udelay(500000); /* 500 ms */
- }
- /*
- * Select device
- */
- ide_outb(device, ATA_DEV_HD,
- ATA_LBA | ATA_DEVICE(device));
- retries++;
-#else
- return;
-#endif
- }
-#ifdef CONFIG_ATAPI
- else
- break;
- } /* see above - ugly to read */
-
- if (retries == 2) /* Not found */
- return;
-#endif
-
- ide_input_swap_data(device, (ulong *)&iop, ATA_SECTORWORDS);
-
- ident_cpy((unsigned char *) dev_desc->revision, iop.fw_rev,
- sizeof(dev_desc->revision));
- ident_cpy((unsigned char *) dev_desc->vendor, iop.model,
- sizeof(dev_desc->vendor));
- ident_cpy((unsigned char *) dev_desc->product, iop.serial_no,
- sizeof(dev_desc->product));
-#ifdef __LITTLE_ENDIAN
- /*
- * firmware revision, model, and serial number have Big Endian Byte
- * order in Word. Convert all three to little endian.
- *
- * See CF+ and CompactFlash Specification Revision 2.0:
- * 6.2.1.6: Identify Drive, Table 39 for more details
- */
-
- strswab(dev_desc->revision);
- strswab(dev_desc->vendor);
- strswab(dev_desc->product);
-#endif /* __LITTLE_ENDIAN */
-
- if ((iop.config & 0x0080) == 0x0080)
- dev_desc->removable = 1;
- else
- dev_desc->removable = 0;
-
-#ifdef CONFIG_ATAPI
- if (dev_desc->if_type == IF_TYPE_ATAPI) {
- atapi_inquiry(dev_desc);
- return;
- }
-#endif /* CONFIG_ATAPI */
-
-#ifdef __BIG_ENDIAN
- /* swap shorts */
- dev_desc->lba = (iop.lba_capacity << 16) | (iop.lba_capacity >> 16);
-#else /* ! __BIG_ENDIAN */
- /*
- * do not swap shorts on little endian
- *
- * See CF+ and CompactFlash Specification Revision 2.0:
- * 6.2.1.6: Identfy Drive, Table 39, Word Address 57-58 for details.
- */
- dev_desc->lba = iop.lba_capacity;
-#endif /* __BIG_ENDIAN */
-
-#ifdef CONFIG_LBA48
- if (iop.command_set_2 & 0x0400) { /* LBA 48 support */
- dev_desc->lba48 = 1;
- dev_desc->lba = (unsigned long long) iop.lba48_capacity[0] |
- ((unsigned long long) iop.lba48_capacity[1] << 16) |
- ((unsigned long long) iop.lba48_capacity[2] << 32) |
- ((unsigned long long) iop.lba48_capacity[3] << 48);
- } else {
- dev_desc->lba48 = 0;
- }
-#endif /* CONFIG_LBA48 */
- /* assuming HD */
- dev_desc->type = DEV_TYPE_HARDDISK;
- dev_desc->blksz = ATA_BLOCKSIZE;
- dev_desc->log2blksz = LOG2(dev_desc->blksz);
- dev_desc->lun = 0; /* just to fill something in... */
-
-#if 0 /* only used to test the powersaving mode,
- * if enabled, the drive goes after 5 sec
- * in standby mode */
- ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
- c = ide_wait(device, IDE_TIME_OUT);
- ide_outb(device, ATA_SECT_CNT, 1);
- ide_outb(device, ATA_LBA_LOW, 0);
- ide_outb(device, ATA_LBA_MID, 0);
- ide_outb(device, ATA_LBA_HIGH, 0);
- ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
- ide_outb(device, ATA_COMMAND, 0xe3);
- udelay(50);
- c = ide_wait(device, IDE_TIME_OUT); /* can't take over 500 ms */
-#endif
-}
-
-
/* ------------------------------------------------------------------------- */
ulong ide_read(struct blk_desc *block_dev, lbaint_t blknr, lbaint_t blkcnt,
@@ -820,8 +1294,8 @@
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);
+ printf("Error (no IRQ) dev %d blk " LBAF
+ ": status %#02x\n", device, blknr, c);
break;
}
@@ -863,7 +1337,6 @@
ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
while (blkcnt-- > 0) {
-
c = ide_wait(device, IDE_TIME_OUT);
if (c & ATA_STAT_BUSY) {
@@ -910,8 +1383,8 @@
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);
+ printf("Error (no IRQ) dev %d blk " LBAF
+ ": status %#02x\n", device, blknr, c);
goto WR_OUT;
}
@@ -928,521 +1401,16 @@
/* ------------------------------------------------------------------------- */
-/*
- * 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;
-
- /* reserve space for '\0' */
- if (len < 2)
- goto OUT;
-
- /* skip leading white space */
- while ((*src) && (src < end) && (*src == ' '))
- ++src;
-
- /* copy string, omitting trailing white space */
- while ((*src) && (src < end)) {
- *dst++ = *src;
- if (*src++ != ' ')
- last = dst;
- }
-OUT:
- *last = '\0';
-}
-
-/* ------------------------------------------------------------------------- */
-
-/*
- * 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;
-
- while ((c = ide_inb(dev, ATA_STATUS)) & ATA_STAT_BUSY) {
- udelay(100);
- if (delay-- == 0)
- break;
- }
- return c;
-}
-
-/* ------------------------------------------------------------------------- */
-
-#ifdef CONFIG_IDE_RESET
-extern void ide_set_reset(int idereset);
-
-static void ide_reset(void)
-{
- 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);
-}
-
-#endif /* CONFIG_IDE_RESET */
-
-/* ------------------------------------------------------------------------- */
-
#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);
+ return ide_dev_desc[dev].type == DEV_TYPE_UNKNOWN ? 0 : 1;
}
#endif
/* ------------------------------------------------------------------------- */
-#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)
-{
- 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--) {
- EIEIO;
- *pbuf = *dbuf++;
- }
-}
-
-__weak void ide_input_data_shorts(int dev, ushort *sect_buf, int shorts)
-{
- ushort *dbuf;
- volatile ushort *pbuf;
-
- 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);
-
- while (shorts--) {
- 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)
-{
- insw(ATA_CURR_BASE(dev) + ATA_DATA_REG, sect_buf, shorts);
-}
-
-#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 delay = 10 * t; /* poll every 100 us */
- uchar c;
-
- /* 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;
- }
- 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;
-
- 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));
-
- 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;
- }
-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);
-
- 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;
- }
- 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;
-}
-
-
-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;
-
- device = dev_desc->devnum;
- dev_desc->type = DEV_TYPE_UNKNOWN; /* not yet valid */
- dev_desc->block_read = atapi_read;
-
- 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);
-
- debug("ATAPI_CMD_INQUIRY returned %x\n", c);
- if (c != 0)
- return;
-
- /* 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);
-
- 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 ((iobuf[1] & 0x80) == 0x80)
- dev_desc->removable = 1;
- else
- dev_desc->removable = 0;
-
- memset(ccb, 0, sizeof(ccb));
- memset(iobuf, 0, sizeof(iobuf));
- ccb[0] = ATAPI_CMD_START_STOP;
- ccb[4] = 0x03; /* start */
-
- 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;
-}
-
-
-/*
- * 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)
-
-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;
-
- debug("atapi_read dev %d start " LBAF " blocks " LBAF
- " buffer at %lX\n", device, blknr, blkcnt, (ulong) buffer);
-
- 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;
-}
-
-/* ------------------------------------------------------------------------- */
-
-#endif /* CONFIG_ATAPI */
-
U_BOOT_CMD(ide, 5, 1, do_ide,
"IDE sub-system",
"reset - reset IDE controller\n"