Add driver for S-ATA-controller on Intel processors with South
Bridge, ICH-5, ICH-6 and ICH-7.
Implementation:
1. Code is divided in to two files. All functions, which are
controller specific are kept in "drivers/ata_piix.c" file and
functions, which are not controller specific, are kept in
"common/cmd_sata.c" file.
2. Reading and Writing from the S-ATA drive is done using PIO method.
3. Driver can be configured for 48-bit addressing by defining macro
CONFIG_LBA48, if this macro is not defined driver uses the 28-bit
addressing.
4. S-ATA read function is hooked to the File system, commands like
ext2ls and ext2load file can be used. This has been tested.
5. U-Boot command "SATA_init" is added, which initializes the S-ATA
controller and identifies the S-ATA drives connected to it.
6. U-Boot command "sata" is added, which is used to read/write, print
partition table and get info about the drives present. This I have
implemented in same way as "ide" command is implemented in U-Boot.
7. This driver is for S-ATA in native mode.
8. This driver does not support the Native command queuing and
Hot-plugging.
Signed-off-by: Mushtaq Khan <mushtaq_k@procsys.com>
diff --git a/common/Makefile b/common/Makefile
index 5dfd3a8..1e4ce31 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -38,8 +38,8 @@
cmd_mem.o cmd_mii.o cmd_misc.o cmd_mmc.o \
cmd_nand.o cmd_net.o cmd_nvedit.o \
cmd_pci.o cmd_pcmcia.o cmd_portio.o \
- cmd_reginfo.o cmd_reiser.o cmd_scsi.o cmd_spi.o cmd_universe.o \
- cmd_usb.o cmd_vfd.o \
+ cmd_reginfo.o cmd_reiser.o cmd_sata.o cmd_scsi.o cmd_spi.o \
+ cmd_universe.o cmd_usb.o cmd_vfd.o \
command.o console.o cyclon2.o devices.o dlmalloc.o docecc.o \
environment.o env_common.o \
env_nand.o env_dataflash.o env_flash.o env_eeprom.o \
diff --git a/common/cmd_sata.c b/common/cmd_sata.c
new file mode 100644
index 0000000..1c71b64
--- /dev/null
+++ b/common/cmd_sata.c
@@ -0,0 +1,710 @@
+/*
+ * Copyright (C) Procsys. All rights reserved.
+ * Author: Mushtaq Khan <mushtaq_k@procsys.com>
+ <mushtaqk_921@yahoo.co.in>
+ *
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ * with the reference to libata in kernel 2.4.32
+ *
+*/
+
+/*File contains SATA read-write and other utility functions.*/
+#include <common.h>
+#include <asm/io.h>
+#include <pci.h>
+#include <command.h>
+#include <config.h>
+#include <ide.h>
+#include <ata.h>
+
+#ifdef CFG_SATA_SUPPORTED
+/*For debug prints set macro DEBUG_SATA to 1 */
+#define DEBUG_SATA 0
+/*Macro for SATA library specific declarations */
+#define SATA_DECL
+#include <sata.h>
+#undef SATA_DECL
+
+static u8 __inline__
+sata_inb (unsigned long ioaddr)
+{
+ return inb (ioaddr);
+}
+
+static void __inline__
+sata_outb (unsigned char val, unsigned long ioaddr)
+{
+ outb (val, ioaddr);
+}
+
+static void
+output_data (struct sata_ioports *ioaddr, ulong * sect_buf, int words)
+{
+ outsw (ioaddr->data_addr, sect_buf, words << 1);
+}
+
+static int
+input_data (struct sata_ioports *ioaddr, ulong * sect_buf, int words)
+{
+ insw (ioaddr->data_addr, sect_buf, words << 1);
+ return 0;
+}
+
+static void
+sata_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';
+}
+
+int
+sata_bus_softreset (int num)
+{
+ u8 dev = 0, status = 0, i;
+
+ port[num].dev_mask = 0;
+
+ for (i = 0; i < CFG_SATA_DEVS_PER_BUS; i++) {
+ if (!(sata_devchk (&port[num].ioaddr, i))) {
+ PRINTF ("dev_chk failed for dev#%d\n", i);
+ } else {
+ port[num].dev_mask |= (1 << i);
+ PRINTF ("dev_chk passed for dev#%d\n", i);
+ }
+ }
+
+ if (!(port[num].dev_mask)) {
+ printf ("no devices on port%d\n", num);
+ return 1;
+ }
+
+ dev_select (&port[num].ioaddr, dev);
+
+ port[num].ctl_reg = 0x08; /*Default value of control reg */
+ sata_outb (port[num].ctl_reg, port[num].ioaddr.ctl_addr);
+ udelay (10);
+ sata_outb (port[num].ctl_reg | ATA_SRST, port[num].ioaddr.ctl_addr);
+ udelay (10);
+ sata_outb (port[num].ctl_reg, port[num].ioaddr.ctl_addr);
+
+ /* spec mandates ">= 2ms" before checking status.
+ * We wait 150ms, because that was the magic delay used for
+ * ATAPI devices in Hale Landis's ATADRVR, for the period of time
+ * between when the ATA command register is written, and then
+ * status is checked. Because waiting for "a while" before
+ * checking status is fine, post SRST, we perform this magic
+ * delay here as well.
+ */
+ msleep (150);
+ status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 300);
+ while ((status & ATA_BUSY)) {
+ msleep (100);
+ status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 3);
+ }
+
+ if (status & ATA_BUSY)
+ printf ("ata%u is slow to respond,plz be patient\n", port);
+
+ while ((status & ATA_BUSY)) {
+ msleep (100);
+ status = sata_chk_status (&port[num].ioaddr);
+ }
+
+ if (status & ATA_BUSY) {
+ printf ("ata%u failed to respond : ", port);
+ printf ("bus reset failed\n");
+ return 1;
+ }
+ return 0;
+}
+
+void
+sata_identify (int num, int dev)
+{
+ u8 cmd = 0, status = 0, devno = num * CFG_SATA_DEVS_PER_BUS + dev;
+ u16 iobuf[ATA_SECT_SIZE];
+ u64 n_sectors = 0;
+ u8 mask = 0;
+
+ memset (iobuf, 0, sizeof (iobuf));
+ hd_driveid_t *iop = (hd_driveid_t *) iobuf;
+
+ 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;
+ }
+
+ printf ("port=%d dev=%d\n", num, dev);
+
+ dev_select (&port[num].ioaddr, dev);
+
+ status = 0;
+ cmd = ATA_CMD_IDENT; /*Device Identify Command */
+ sata_outb (cmd, port[num].ioaddr.command_addr);
+ sata_inb (port[num].ioaddr.altstatus_addr);
+ udelay (10);
+
+ status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 1000);
+ if (status & ATA_ERR) {
+ printf ("\ndevice not responding\n");
+ port[num].dev_mask &= ~mask;
+ return;
+ }
+
+ input_data (&port[num].ioaddr, (ulong *) iobuf, ATA_SECTORWORDS);
+
+ PRINTF ("\nata%u: dev %u cfg 49:%04x 82:%04x 83:%04x 84:%04x85:%04x"
+ "86:%04x" "87:%04x 88:%04x\n", num, dev, iobuf[49],
+ iobuf[82], iobuf[83], iobuf[84], iobuf[85], iobuf[86],
+ iobuf[87], iobuf[88]);
+
+ /* we require LBA and DMA support (bits 8 & 9 of word 49) */
+ if (!ata_id_has_dma (iobuf) || !ata_id_has_lba (iobuf)) {
+ PRINTF ("ata%u: no dma/lba\n", num);
+ }
+ ata_dump_id (iobuf);
+
+ if (ata_id_has_lba48 (iobuf)) {
+ n_sectors = ata_id_u64 (iobuf, 100);
+ } else {
+ n_sectors = ata_id_u32 (iobuf, 60);
+ }
+ PRINTF ("no. of sectors %u\n", ata_id_u64 (iobuf, 100));
+ PRINTF ("no. of sectors %u\n", ata_id_u32 (iobuf, 60));
+
+ if (n_sectors == 0) {
+ port[num].dev_mask &= ~mask;
+ return;
+ }
+
+ sata_cpy (sata_dev_desc[devno].revision, iop->fw_rev,
+ sizeof (sata_dev_desc[devno].revision));
+ sata_cpy (sata_dev_desc[devno].vendor, iop->model,
+ sizeof (sata_dev_desc[devno].vendor));
+ sata_cpy (sata_dev_desc[devno].product, iop->serial_no,
+ sizeof (sata_dev_desc[devno].product));
+ strswab (sata_dev_desc[devno].revision);
+ strswab (sata_dev_desc[devno].vendor);
+
+ if ((iop->config & 0x0080) == 0x0080) {
+ sata_dev_desc[devno].removable = 1;
+ } else {
+ sata_dev_desc[devno].removable = 0;
+ }
+
+ sata_dev_desc[devno].lba = iop->lba_capacity;
+ PRINTF ("lba=0x%x", sata_dev_desc[devno].lba);
+
+#ifdef CONFIG_LBA48
+ if (iop->command_set_2 & 0x0400) {
+ sata_dev_desc[devno].lba48 = 1;
+ 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 {
+ sata_dev_desc[devno].lba48 = 0;
+ }
+#endif
+
+ /* 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, lbaint_t blknr, ulong blkcnt, ulong * buffer)
+{
+ ulong n = 0;
+ 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 / CFG_SATA_DEVS_PER_BUS;
+ /*dev on the port */
+ if (device >= CFG_SATA_DEVS_PER_BUS)
+ dev = device - CFG_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, lbaint_t blknr, ulong blkcnt, ulong * buffer)
+{
+ ulong n = 0;
+ 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 / CFG_SATA_DEVS_PER_BUS;
+ /*dev on the Port */
+ if (device >= CFG_SATA_DEVS_PER_BUS)
+ dev = device - CFG_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;
+}
+
+block_dev_desc_t *sata_get_dev (int dev);
+
+block_dev_desc_t *
+sata_get_dev (int dev)
+{
+ return ((block_dev_desc_t *) & sata_dev_desc[dev]);
+}
+
+int
+do_sata (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+
+ switch (argc) {
+ case 0:
+ case 1:
+ printf ("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ case 2:
+ if (strncmp (argv[1], "init", 4) == 0) {
+ int rcode = 0;
+
+ rcode = init_sata ();
+ if (rcode)
+ printf ("Sata initialization Failed\n");
+ return rcode;
+ } else if (strncmp (argv[1], "inf", 3) == 0) {
+ int i;
+
+ putc ('\n');
+ for (i = 0; i < CFG_SATA_MAXDEVICES; ++i) {
+ /*List only known devices */
+ if (sata_dev_desc[i].type ==
+ DEV_TYPE_UNKNOWN)
+ continue;
+ printf ("sata dev %d: ", i);
+ dev_print (&sata_dev_desc[i]);
+ }
+ return 0;
+ }
+ printf ("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ case 3:
+ if (strcmp (argv[1], "dev") == 0) {
+ int dev = (int) simple_strtoul (argv[2], NULL, 10);
+
+ if (dev >= CFG_SATA_MAXDEVICES) {
+ printf ("\nSata dev %d not available\n",
+ dev);
+ return 1;
+ }
+ printf ("\nSATA dev %d: ", dev);
+ dev_print (&sata_dev_desc[dev]);
+ if (sata_dev_desc[dev].type == DEV_TYPE_UNKNOWN)
+ return 1;
+ curr_dev = dev;
+ return 0;
+ } else if (strcmp (argv[1], "part") == 0) {
+ int dev = (int) simple_strtoul (argv[2], NULL, 10);
+
+ if (dev >= CFG_SATA_MAXDEVICES) {
+ printf ("\nSata dev %d not available\n",
+ dev);
+ return 1;
+ }
+ PRINTF ("\nSATA dev %d: ", dev);
+ if (sata_dev_desc[dev].part_type !=
+ PART_TYPE_UNKNOWN) {
+ print_part (&sata_dev_desc[dev]);
+ } else {
+ printf ("\nSata dev %d partition type "
+ "unknown\n", dev);
+ return 1;
+ }
+ return 0;
+ }
+ printf ("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ default:
+ if (argc < 5) {
+ printf ("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ }
+ if (strcmp (argv[1], "read") == 0) {
+ ulong addr = simple_strtoul (argv[2], NULL, 16);
+ ulong cnt = simple_strtoul (argv[4], NULL, 16);
+ ulong n;
+ lbaint_t blk = simple_strtoul (argv[3], NULL, 16);
+
+ memset ((int *) addr, 0, cnt * 512);
+ printf ("\nSATA read: dev %d blk # %ld,"
+ "count %ld ... ", curr_dev, blk, cnt);
+ n = sata_read (curr_dev, blk, cnt, (ulong *) addr);
+ /* flush cache after read */
+ flush_cache (addr, cnt * 512);
+ printf ("%ld blocks read: %s\n", n,
+ (n == cnt) ? "OK" : "ERR");
+ if (n == cnt)
+ return 1;
+ else
+ return 0;
+ } 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;
+ lbaint_t blk = simple_strtoul (argv[3], NULL, 16);
+
+ printf ("\nSata write: dev %d blk # %ld,"
+ "count %ld ... ", curr_dev, blk, cnt);
+ n = sata_write (curr_dev, blk, cnt, (ulong *) addr);
+ printf ("%ld blocks written: %s\n", n,
+ (n == cnt) ? "OK" : "ERR");
+ if (n == cnt)
+ return 1;
+ else
+ return 0;
+ } else {
+ printf ("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ }
+ } /*End OF SWITCH */
+}
+
+U_BOOT_CMD (sata, 5, 1, do_sata,
+ "sata init\n"
+ "sata info\n"
+ "sata part device\n"
+ "sata dev device\n"
+ "sata read addr blk# cnt\n"
+ "sata write addr blk# cnt\n", "cmd for init,rw and dev-info\n");
+
+#endif