+
+ /* assuming HD */
+ sata_dev_desc[devno].type = DEV_TYPE_HARDDISK;
+ sata_dev_desc[devno].blksz = ATA_BLOCKSIZE;
+ sata_dev_desc[devno].lun = 0; /* just to fill something in... */
+}
+
+void
+set_Feature_cmd (int num, int dev)
+{
+ u8 mask = 0x00, status = 0;
+
+ if (dev == 0)
+ mask = 0x01;
+ else
+ mask = 0x02;
+
+ if (!(port[num].dev_mask & mask)) {
+ PRINTF ("dev%d is not present on port#%d\n", dev, num);
+ return;
+ }
+
+ dev_select (&port[num].ioaddr, dev);
+
+ sata_outb (SETFEATURES_XFER, port[num].ioaddr.feature_addr);
+ sata_outb (XFER_PIO_4, port[num].ioaddr.nsect_addr);
+ sata_outb (0, port[num].ioaddr.lbal_addr);
+ sata_outb (0, port[num].ioaddr.lbam_addr);
+ sata_outb (0, port[num].ioaddr.lbah_addr);
+
+ sata_outb (ATA_DEVICE_OBS, port[num].ioaddr.device_addr);
+ sata_outb (ATA_CMD_SETF, port[num].ioaddr.command_addr);
+
+ udelay (50);
+ msleep (150);
+
+ status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 5000);
+ if ((status & (ATA_STAT_BUSY | ATA_STAT_ERR))) {
+ printf ("Error : status 0x%02x\n", status);
+ port[num].dev_mask &= ~mask;
+ }
+}
+
+void
+sata_port (struct sata_ioports *ioport)
+{
+ ioport->data_addr = ioport->cmd_addr + ATA_REG_DATA;
+ ioport->error_addr = ioport->cmd_addr + ATA_REG_ERR;
+ ioport->feature_addr = ioport->cmd_addr + ATA_REG_FEATURE;
+ ioport->nsect_addr = ioport->cmd_addr + ATA_REG_NSECT;
+ ioport->lbal_addr = ioport->cmd_addr + ATA_REG_LBAL;
+ ioport->lbam_addr = ioport->cmd_addr + ATA_REG_LBAM;
+ ioport->lbah_addr = ioport->cmd_addr + ATA_REG_LBAH;
+ ioport->device_addr = ioport->cmd_addr + ATA_REG_DEVICE;
+ ioport->status_addr = ioport->cmd_addr + ATA_REG_STATUS;
+ ioport->command_addr = ioport->cmd_addr + ATA_REG_CMD;
+}
+
+int
+sata_devchk (struct sata_ioports *ioaddr, int dev)
+{
+ u8 nsect, lbal;
+
+ dev_select (ioaddr, dev);
+
+ sata_outb (0x55, ioaddr->nsect_addr);
+ sata_outb (0xaa, ioaddr->lbal_addr);
+
+ sata_outb (0xaa, ioaddr->nsect_addr);
+ sata_outb (0x55, ioaddr->lbal_addr);
+
+ sata_outb (0x55, ioaddr->nsect_addr);
+ sata_outb (0xaa, ioaddr->lbal_addr);
+
+ nsect = sata_inb (ioaddr->nsect_addr);
+ lbal = sata_inb (ioaddr->lbal_addr);
+
+ if ((nsect == 0x55) && (lbal == 0xaa))
+ return 1; /* we found a device */
+ else
+ return 0; /* nothing found */
+}
+
+void
+dev_select (struct sata_ioports *ioaddr, int dev)
+{
+ u8 tmp = 0;
+
+ if (dev == 0)
+ tmp = ATA_DEVICE_OBS;
+ else
+ tmp = ATA_DEVICE_OBS | ATA_DEV1;
+
+ sata_outb (tmp, ioaddr->device_addr);
+ sata_inb (ioaddr->altstatus_addr);
+ udelay (5);
+}
+
+u8
+sata_busy_wait (struct sata_ioports *ioaddr, int bits, unsigned int max)
+{
+ u8 status;
+
+ do {
+ udelay (1000);
+ status = sata_chk_status (ioaddr);
+ max--;
+ } while ((status & bits) && (max > 0));
+
+ return status;
+}
+
+u8
+sata_chk_status (struct sata_ioports * ioaddr)
+{
+ return sata_inb (ioaddr->status_addr);
+}
+
+void
+msleep (int count)
+{
+ int i;
+
+ for (i = 0; i < count; i++)
+ udelay (1000);
+}
+
+ulong
+sata_read (int device, ulong blknr,lbaint_t blkcnt, void * buff)
+{
+ ulong n = 0, *buffer = (ulong *)buff;
+ u8 dev = 0, num = 0, mask = 0, status = 0;
+
+#ifdef CONFIG_LBA48
+ unsigned char lba48 = 0;
+
+ if (blknr & 0x0000fffff0000000) {
+ if (!sata_dev_desc[devno].lba48) {
+ printf ("Drive doesn't support 48-bit addressing\n");
+ return 0;
+ }
+ /* more than 28 bits used, use 48bit mode */
+ lba48 = 1;
+ }
+#endif
+ /*Port Number */
+ num = device / CONFIG_SYS_SATA_DEVS_PER_BUS;
+ /*dev on the port */
+ if (device >= CONFIG_SYS_SATA_DEVS_PER_BUS)
+ dev = device - CONFIG_SYS_SATA_DEVS_PER_BUS;
+ else
+ dev = device;
+
+ if (dev == 0)
+ mask = 0x01;
+ else
+ mask = 0x02;
+
+ if (!(port[num].dev_mask & mask)) {
+ printf ("dev%d is not present on port#%d\n", dev, num);
+ return 0;
+ }
+
+ /* Select device */
+ dev_select (&port[num].ioaddr, dev);
+
+ status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 500);
+ if (status & ATA_BUSY) {
+ printf ("ata%u failed to respond\n", port[num].port_no);
+ return n;
+ }
+ while (blkcnt-- > 0) {
+ status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 500);
+ if (status & ATA_BUSY) {
+ printf ("ata%u failed to respond\n", 0);
+ return n;
+ }
+#ifdef CONFIG_LBA48
+ if (lba48) {
+ /* write high bits */
+ sata_outb (0, port[num].ioaddr.nsect_addr);
+ sata_outb ((blknr >> 24) & 0xFF,
+ port[num].ioaddr.lbal_addr);
+ sata_outb ((blknr >> 32) & 0xFF,
+ port[num].ioaddr.lbam_addr);
+ sata_outb ((blknr >> 40) & 0xFF,
+ port[num].ioaddr.lbah_addr);
+ }
+#endif
+ sata_outb (1, port[num].ioaddr.nsect_addr);
+ sata_outb (((blknr) >> 0) & 0xFF,
+ port[num].ioaddr.lbal_addr);
+ sata_outb ((blknr >> 8) & 0xFF, port[num].ioaddr.lbam_addr);
+ sata_outb ((blknr >> 16) & 0xFF, port[num].ioaddr.lbah_addr);
+
+#ifdef CONFIG_LBA48
+ if (lba48) {
+ sata_outb (ATA_LBA, port[num].ioaddr.device_addr);
+ sata_outb (ATA_CMD_READ_EXT,
+ port[num].ioaddr.command_addr);
+ } else
+#endif
+ {
+ sata_outb (ATA_LBA | ((blknr >> 24) & 0xF),
+ port[num].ioaddr.device_addr);
+ sata_outb (ATA_CMD_READ,
+ port[num].ioaddr.command_addr);
+ }
+
+ msleep (50);
+ /*may take up to 4 sec */
+ status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 4000);
+
+ if ((status & (ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR))
+ != ATA_STAT_DRQ) {
+ u8 err = 0;
+
+ printf ("Error no DRQ dev %d blk %ld: sts 0x%02x\n",
+ device, (ulong) blknr, status);
+ err = sata_inb (port[num].ioaddr.error_addr);
+ printf ("Error reg = 0x%x\n", err);
+ return (n);
+ }
+ input_data (&port[num].ioaddr, buffer, ATA_SECTORWORDS);
+ sata_inb (port[num].ioaddr.altstatus_addr);
+ udelay (50);
+
+ ++n;
+ ++blknr;
+ buffer += ATA_SECTORWORDS;
+ }
+ return n;
+}
+
+ulong
+sata_write (int device, ulong blknr,lbaint_t blkcnt, void * buff)
+{
+ ulong n = 0, *buffer = (ulong *)buff;
+ unsigned char status = 0, num = 0, dev = 0, mask = 0;
+
+#ifdef CONFIG_LBA48
+ unsigned char lba48 = 0;
+
+ if (blknr & 0x0000fffff0000000) {
+ if (!sata_dev_desc[devno].lba48) {
+ printf ("Drive doesn't support 48-bit addressing\n");
+ return 0;
+ }
+ /* more than 28 bits used, use 48bit mode */
+ lba48 = 1;
+ }
+#endif
+ /*Port Number */
+ num = device / CONFIG_SYS_SATA_DEVS_PER_BUS;
+ /*dev on the Port */
+ if (device >= CONFIG_SYS_SATA_DEVS_PER_BUS)
+ dev = device - CONFIG_SYS_SATA_DEVS_PER_BUS;
+ else
+ dev = device;
+
+ if (dev == 0)
+ mask = 0x01;
+ else
+ mask = 0x02;
+
+ /* Select device */
+ dev_select (&port[num].ioaddr, dev);
+
+ status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 500);
+ if (status & ATA_BUSY) {
+ printf ("ata%u failed to respond\n", port[num].port_no);
+ return n;
+ }
+
+ while (blkcnt-- > 0) {
+ status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 500);
+ if (status & ATA_BUSY) {
+ printf ("ata%u failed to respond\n",
+ port[num].port_no);
+ return n;
+ }
+#ifdef CONFIG_LBA48
+ if (lba48) {
+ /* write high bits */
+ sata_outb (0, port[num].ioaddr.nsect_addr);
+ sata_outb ((blknr >> 24) & 0xFF,
+ port[num].ioaddr.lbal_addr);
+ sata_outb ((blknr >> 32) & 0xFF,
+ port[num].ioaddr.lbam_addr);
+ sata_outb ((blknr >> 40) & 0xFF,
+ port[num].ioaddr.lbah_addr);
+ }
+#endif
+ sata_outb (1, port[num].ioaddr.nsect_addr);
+ sata_outb ((blknr >> 0) & 0xFF, port[num].ioaddr.lbal_addr);
+ sata_outb ((blknr >> 8) & 0xFF, port[num].ioaddr.lbam_addr);
+ sata_outb ((blknr >> 16) & 0xFF, port[num].ioaddr.lbah_addr);
+#ifdef CONFIG_LBA48
+ if (lba48) {
+ sata_outb (ATA_LBA, port[num].ioaddr.device_addr);
+ sata_outb (ATA_CMD_WRITE_EXT,
+ port[num].ioaddr.command_addr);
+ } else
+#endif
+ {
+ sata_outb (ATA_LBA | ((blknr >> 24) & 0xF),
+ port[num].ioaddr.device_addr);
+ sata_outb (ATA_CMD_WRITE,
+ port[num].ioaddr.command_addr);
+ }
+
+ msleep (50);
+ /*may take up to 4 sec */
+ status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 4000);
+ if ((status & (ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR))
+ != ATA_STAT_DRQ) {
+ printf ("Error no DRQ dev %d blk %ld: sts 0x%02x\n",
+ device, (ulong) blknr, status);
+ return (n);
+ }
+
+ output_data (&port[num].ioaddr, buffer, ATA_SECTORWORDS);
+ sata_inb (port[num].ioaddr.altstatus_addr);
+ udelay (50);
+
+ ++n;
+ ++blknr;
+ buffer += ATA_SECTORWORDS;
+ }
+ return n;
+}
+
+int scan_sata(int dev)
+{
+ return 0;
+}