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713 lines
17 KiB
C
713 lines
17 KiB
C
/*
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* Copyright (C) Procsys. All rights reserved.
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* Author: Mushtaq Khan <mushtaq_k@procsys.com>
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* <mushtaqk_921@yahoo.co.in>
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*
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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* with the reference to libata in kernel 2.4.32
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*
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*/
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/*
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* File contains SATA read-write and other utility functions.
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <pci.h>
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#include <command.h>
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#include <config.h>
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#include <ide.h>
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#include <ata.h>
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#ifdef CFG_SATA_SUPPORTED
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/*For debug prints set macro DEBUG_SATA to 1 */
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#define DEBUG_SATA 0
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/*Macro for SATA library specific declarations */
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#define SATA_DECL
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#include <sata.h>
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#undef SATA_DECL
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static u8 __inline__
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sata_inb (unsigned long ioaddr)
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{
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return inb (ioaddr);
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}
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static void __inline__
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sata_outb (unsigned char val, unsigned long ioaddr)
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{
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outb (val, ioaddr);
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}
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static void
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output_data (struct sata_ioports *ioaddr, ulong * sect_buf, int words)
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{
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outsw (ioaddr->data_addr, sect_buf, words << 1);
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}
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static int
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input_data (struct sata_ioports *ioaddr, ulong * sect_buf, int words)
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{
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insw (ioaddr->data_addr, sect_buf, words << 1);
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return 0;
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}
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static void
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sata_cpy (unsigned char *dst, unsigned char *src, unsigned int len)
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{
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unsigned char *end, *last;
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last = dst;
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end = src + len - 1;
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/* reserve space for '\0' */
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if (len < 2)
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goto OUT;
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/* skip leading white space */
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while ((*src) && (src < end) && (*src == ' '))
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++src;
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/* copy string, omitting trailing white space */
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while ((*src) && (src < end)) {
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*dst++ = *src;
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if (*src++ != ' ')
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last = dst;
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}
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OUT:
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*last = '\0';
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}
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int
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sata_bus_softreset (int num)
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{
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u8 dev = 0, status = 0, i;
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port[num].dev_mask = 0;
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for (i = 0; i < CFG_SATA_DEVS_PER_BUS; i++) {
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if (!(sata_devchk (&port[num].ioaddr, i))) {
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PRINTF ("dev_chk failed for dev#%d\n", i);
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} else {
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port[num].dev_mask |= (1 << i);
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PRINTF ("dev_chk passed for dev#%d\n", i);
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}
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}
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if (!(port[num].dev_mask)) {
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printf ("no devices on port%d\n", num);
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return 1;
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}
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dev_select (&port[num].ioaddr, dev);
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port[num].ctl_reg = 0x08; /*Default value of control reg */
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sata_outb (port[num].ctl_reg, port[num].ioaddr.ctl_addr);
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udelay (10);
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sata_outb (port[num].ctl_reg | ATA_SRST, port[num].ioaddr.ctl_addr);
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udelay (10);
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sata_outb (port[num].ctl_reg, port[num].ioaddr.ctl_addr);
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/* spec mandates ">= 2ms" before checking status.
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* We wait 150ms, because that was the magic delay used for
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* ATAPI devices in Hale Landis's ATADRVR, for the period of time
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* between when the ATA command register is written, and then
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* status is checked. Because waiting for "a while" before
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* checking status is fine, post SRST, we perform this magic
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* delay here as well.
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*/
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msleep (150);
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status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 300);
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while ((status & ATA_BUSY)) {
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msleep (100);
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status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 3);
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}
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if (status & ATA_BUSY)
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printf ("ata%u is slow to respond,plz be patient\n", port);
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while ((status & ATA_BUSY)) {
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msleep (100);
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status = sata_chk_status (&port[num].ioaddr);
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}
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if (status & ATA_BUSY) {
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printf ("ata%u failed to respond : ", port);
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printf ("bus reset failed\n");
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return 1;
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}
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return 0;
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}
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void
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sata_identify (int num, int dev)
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{
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u8 cmd = 0, status = 0, devno = num * CFG_SATA_DEVS_PER_BUS + dev;
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u16 iobuf[ATA_SECT_SIZE];
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u64 n_sectors = 0;
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u8 mask = 0;
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memset (iobuf, 0, sizeof (iobuf));
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hd_driveid_t *iop = (hd_driveid_t *) iobuf;
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if (dev == 0)
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mask = 0x01;
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else
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mask = 0x02;
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if (!(port[num].dev_mask & mask)) {
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printf ("dev%d is not present on port#%d\n", dev, num);
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return;
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}
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printf ("port=%d dev=%d\n", num, dev);
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dev_select (&port[num].ioaddr, dev);
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status = 0;
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cmd = ATA_CMD_IDENT; /*Device Identify Command */
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sata_outb (cmd, port[num].ioaddr.command_addr);
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sata_inb (port[num].ioaddr.altstatus_addr);
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udelay (10);
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status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 1000);
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if (status & ATA_ERR) {
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printf ("\ndevice not responding\n");
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port[num].dev_mask &= ~mask;
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return;
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}
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input_data (&port[num].ioaddr, (ulong *) iobuf, ATA_SECTORWORDS);
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PRINTF ("\nata%u: dev %u cfg 49:%04x 82:%04x 83:%04x 84:%04x85:%04x"
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"86:%04x" "87:%04x 88:%04x\n", num, dev, iobuf[49],
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iobuf[82], iobuf[83], iobuf[84], iobuf[85], iobuf[86],
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iobuf[87], iobuf[88]);
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/* we require LBA and DMA support (bits 8 & 9 of word 49) */
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if (!ata_id_has_dma (iobuf) || !ata_id_has_lba (iobuf)) {
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PRINTF ("ata%u: no dma/lba\n", num);
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}
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ata_dump_id (iobuf);
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if (ata_id_has_lba48 (iobuf)) {
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n_sectors = ata_id_u64 (iobuf, 100);
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} else {
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n_sectors = ata_id_u32 (iobuf, 60);
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}
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PRINTF ("no. of sectors %u\n", ata_id_u64 (iobuf, 100));
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PRINTF ("no. of sectors %u\n", ata_id_u32 (iobuf, 60));
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if (n_sectors == 0) {
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port[num].dev_mask &= ~mask;
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return;
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}
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sata_cpy (sata_dev_desc[devno].revision, iop->fw_rev,
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sizeof (sata_dev_desc[devno].revision));
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sata_cpy (sata_dev_desc[devno].vendor, iop->model,
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sizeof (sata_dev_desc[devno].vendor));
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sata_cpy (sata_dev_desc[devno].product, iop->serial_no,
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sizeof (sata_dev_desc[devno].product));
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strswab (sata_dev_desc[devno].revision);
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strswab (sata_dev_desc[devno].vendor);
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if ((iop->config & 0x0080) == 0x0080) {
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sata_dev_desc[devno].removable = 1;
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} else {
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sata_dev_desc[devno].removable = 0;
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}
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sata_dev_desc[devno].lba = iop->lba_capacity;
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PRINTF ("lba=0x%x", sata_dev_desc[devno].lba);
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#ifdef CONFIG_LBA48
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if (iop->command_set_2 & 0x0400) {
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sata_dev_desc[devno].lba48 = 1;
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lba = (unsigned long long) iop->lba48_capacity[0] |
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((unsigned long long) iop->lba48_capacity[1] << 16) |
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((unsigned long long) iop->lba48_capacity[2] << 32) |
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((unsigned long long) iop->lba48_capacity[3] << 48);
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} else {
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sata_dev_desc[devno].lba48 = 0;
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}
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#endif
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/* assuming HD */
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sata_dev_desc[devno].type = DEV_TYPE_HARDDISK;
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sata_dev_desc[devno].blksz = ATA_BLOCKSIZE;
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sata_dev_desc[devno].lun = 0; /* just to fill something in... */
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}
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void
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set_Feature_cmd (int num, int dev)
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{
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u8 mask = 0x00, status = 0;
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if (dev == 0)
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mask = 0x01;
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else
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mask = 0x02;
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if (!(port[num].dev_mask & mask)) {
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PRINTF ("dev%d is not present on port#%d\n", dev, num);
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return;
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}
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dev_select (&port[num].ioaddr, dev);
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sata_outb (SETFEATURES_XFER, port[num].ioaddr.feature_addr);
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sata_outb (XFER_PIO_4, port[num].ioaddr.nsect_addr);
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sata_outb (0, port[num].ioaddr.lbal_addr);
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sata_outb (0, port[num].ioaddr.lbam_addr);
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sata_outb (0, port[num].ioaddr.lbah_addr);
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sata_outb (ATA_DEVICE_OBS, port[num].ioaddr.device_addr);
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sata_outb (ATA_CMD_SETF, port[num].ioaddr.command_addr);
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udelay (50);
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msleep (150);
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status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 5000);
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if ((status & (ATA_STAT_BUSY | ATA_STAT_ERR))) {
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printf ("Error : status 0x%02x\n", status);
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port[num].dev_mask &= ~mask;
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}
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}
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void
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sata_port (struct sata_ioports *ioport)
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{
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ioport->data_addr = ioport->cmd_addr + ATA_REG_DATA;
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ioport->error_addr = ioport->cmd_addr + ATA_REG_ERR;
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ioport->feature_addr = ioport->cmd_addr + ATA_REG_FEATURE;
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ioport->nsect_addr = ioport->cmd_addr + ATA_REG_NSECT;
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ioport->lbal_addr = ioport->cmd_addr + ATA_REG_LBAL;
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ioport->lbam_addr = ioport->cmd_addr + ATA_REG_LBAM;
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ioport->lbah_addr = ioport->cmd_addr + ATA_REG_LBAH;
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ioport->device_addr = ioport->cmd_addr + ATA_REG_DEVICE;
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ioport->status_addr = ioport->cmd_addr + ATA_REG_STATUS;
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ioport->command_addr = ioport->cmd_addr + ATA_REG_CMD;
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}
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int
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sata_devchk (struct sata_ioports *ioaddr, int dev)
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{
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u8 nsect, lbal;
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dev_select (ioaddr, dev);
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sata_outb (0x55, ioaddr->nsect_addr);
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sata_outb (0xaa, ioaddr->lbal_addr);
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sata_outb (0xaa, ioaddr->nsect_addr);
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sata_outb (0x55, ioaddr->lbal_addr);
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sata_outb (0x55, ioaddr->nsect_addr);
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sata_outb (0xaa, ioaddr->lbal_addr);
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nsect = sata_inb (ioaddr->nsect_addr);
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lbal = sata_inb (ioaddr->lbal_addr);
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if ((nsect == 0x55) && (lbal == 0xaa))
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return 1; /* we found a device */
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else
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return 0; /* nothing found */
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}
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void
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dev_select (struct sata_ioports *ioaddr, int dev)
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{
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u8 tmp = 0;
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if (dev == 0)
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tmp = ATA_DEVICE_OBS;
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else
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tmp = ATA_DEVICE_OBS | ATA_DEV1;
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sata_outb (tmp, ioaddr->device_addr);
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sata_inb (ioaddr->altstatus_addr);
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udelay (5);
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}
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u8
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sata_busy_wait (struct sata_ioports *ioaddr, int bits, unsigned int max)
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{
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u8 status;
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do {
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udelay (1000);
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status = sata_chk_status (ioaddr);
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max--;
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} while ((status & bits) && (max > 0));
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return status;
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}
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u8
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sata_chk_status (struct sata_ioports * ioaddr)
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{
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return sata_inb (ioaddr->status_addr);
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}
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void
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msleep (int count)
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{
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int i;
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for (i = 0; i < count; i++)
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udelay (1000);
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}
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ulong
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sata_read (int device, ulong blknr,lbaint_t blkcnt, void * buff)
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{
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ulong n = 0, *buffer = (ulong *)buff;
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u8 dev = 0, num = 0, mask = 0, status = 0;
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#ifdef CONFIG_LBA48
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unsigned char lba48 = 0;
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if (blknr & 0x0000fffff0000000) {
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if (!sata_dev_desc[devno].lba48) {
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printf ("Drive doesn't support 48-bit addressing\n");
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return 0;
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}
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/* more than 28 bits used, use 48bit mode */
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lba48 = 1;
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}
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#endif
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/*Port Number */
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num = device / CFG_SATA_DEVS_PER_BUS;
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/*dev on the port */
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if (device >= CFG_SATA_DEVS_PER_BUS)
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dev = device - CFG_SATA_DEVS_PER_BUS;
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else
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dev = device;
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if (dev == 0)
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mask = 0x01;
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else
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mask = 0x02;
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if (!(port[num].dev_mask & mask)) {
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printf ("dev%d is not present on port#%d\n", dev, num);
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return 0;
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}
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/* Select device */
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dev_select (&port[num].ioaddr, dev);
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status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 500);
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if (status & ATA_BUSY) {
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printf ("ata%u failed to respond\n", port[num].port_no);
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return n;
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}
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while (blkcnt-- > 0) {
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status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 500);
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if (status & ATA_BUSY) {
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printf ("ata%u failed to respond\n", 0);
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return n;
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}
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#ifdef CONFIG_LBA48
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if (lba48) {
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/* write high bits */
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sata_outb (0, port[num].ioaddr.nsect_addr);
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sata_outb ((blknr >> 24) & 0xFF,
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port[num].ioaddr.lbal_addr);
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sata_outb ((blknr >> 32) & 0xFF,
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port[num].ioaddr.lbam_addr);
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sata_outb ((blknr >> 40) & 0xFF,
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port[num].ioaddr.lbah_addr);
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}
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#endif
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sata_outb (1, port[num].ioaddr.nsect_addr);
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sata_outb (((blknr) >> 0) & 0xFF,
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port[num].ioaddr.lbal_addr);
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sata_outb ((blknr >> 8) & 0xFF, port[num].ioaddr.lbam_addr);
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sata_outb ((blknr >> 16) & 0xFF, port[num].ioaddr.lbah_addr);
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#ifdef CONFIG_LBA48
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if (lba48) {
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sata_outb (ATA_LBA, port[num].ioaddr.device_addr);
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sata_outb (ATA_CMD_READ_EXT,
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port[num].ioaddr.command_addr);
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} else
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#endif
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{
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sata_outb (ATA_LBA | ((blknr >> 24) & 0xF),
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port[num].ioaddr.device_addr);
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sata_outb (ATA_CMD_READ,
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port[num].ioaddr.command_addr);
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}
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msleep (50);
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/*may take up to 4 sec */
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status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 4000);
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if ((status & (ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR))
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!= ATA_STAT_DRQ) {
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u8 err = 0;
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printf ("Error no DRQ dev %d blk %ld: sts 0x%02x\n",
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device, (ulong) blknr, status);
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err = sata_inb (port[num].ioaddr.error_addr);
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printf ("Error reg = 0x%x\n", err);
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return (n);
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}
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input_data (&port[num].ioaddr, buffer, ATA_SECTORWORDS);
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sata_inb (port[num].ioaddr.altstatus_addr);
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udelay (50);
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++n;
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++blknr;
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buffer += ATA_SECTORWORDS;
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}
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return n;
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}
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ulong
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sata_write (int device, ulong blknr,lbaint_t blkcnt, void * buff)
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{
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ulong n = 0, *buffer = (ulong *)buff;
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unsigned char status = 0, num = 0, dev = 0, mask = 0;
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#ifdef CONFIG_LBA48
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unsigned char lba48 = 0;
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if (blknr & 0x0000fffff0000000) {
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if (!sata_dev_desc[devno].lba48) {
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printf ("Drive doesn't support 48-bit addressing\n");
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return 0;
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}
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/* more than 28 bits used, use 48bit mode */
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lba48 = 1;
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}
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#endif
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/*Port Number */
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num = device / CFG_SATA_DEVS_PER_BUS;
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/*dev on the Port */
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if (device >= CFG_SATA_DEVS_PER_BUS)
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dev = device - CFG_SATA_DEVS_PER_BUS;
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else
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dev = device;
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if (dev == 0)
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mask = 0x01;
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else
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mask = 0x02;
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/* Select device */
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dev_select (&port[num].ioaddr, dev);
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status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 500);
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if (status & ATA_BUSY) {
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printf ("ata%u failed to respond\n", port[num].port_no);
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return n;
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}
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while (blkcnt-- > 0) {
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status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 500);
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if (status & ATA_BUSY) {
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printf ("ata%u failed to respond\n",
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port[num].port_no);
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return n;
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}
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#ifdef CONFIG_LBA48
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if (lba48) {
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/* write high bits */
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sata_outb (0, port[num].ioaddr.nsect_addr);
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sata_outb ((blknr >> 24) & 0xFF,
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port[num].ioaddr.lbal_addr);
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sata_outb ((blknr >> 32) & 0xFF,
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port[num].ioaddr.lbam_addr);
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sata_outb ((blknr >> 40) & 0xFF,
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port[num].ioaddr.lbah_addr);
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}
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#endif
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sata_outb (1, port[num].ioaddr.nsect_addr);
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sata_outb ((blknr >> 0) & 0xFF, port[num].ioaddr.lbal_addr);
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sata_outb ((blknr >> 8) & 0xFF, port[num].ioaddr.lbam_addr);
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sata_outb ((blknr >> 16) & 0xFF, port[num].ioaddr.lbah_addr);
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#ifdef CONFIG_LBA48
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if (lba48) {
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sata_outb (ATA_LBA, port[num].ioaddr.device_addr);
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sata_outb (ATA_CMD_WRITE_EXT,
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port[num].ioaddr.command_addr);
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} else
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#endif
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{
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sata_outb (ATA_LBA | ((blknr >> 24) & 0xF),
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port[num].ioaddr.device_addr);
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sata_outb (ATA_CMD_WRITE,
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port[num].ioaddr.command_addr);
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}
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|
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msleep (50);
|
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/*may take up to 4 sec */
|
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status = sata_busy_wait (&port[num].ioaddr, ATA_BUSY, 4000);
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if ((status & (ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR))
|
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!= ATA_STAT_DRQ) {
|
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printf ("Error no DRQ dev %d blk %ld: sts 0x%02x\n",
|
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device, (ulong) blknr, status);
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return (n);
|
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}
|
|
|
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output_data (&port[num].ioaddr, buffer, ATA_SECTORWORDS);
|
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sata_inb (port[num].ioaddr.altstatus_addr);
|
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udelay (50);
|
|
|
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++n;
|
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++blknr;
|
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buffer += ATA_SECTORWORDS;
|
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}
|
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return n;
|
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}
|
|
|
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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
|