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/*
* Copyright (C) 2000-2005, DENX Software Engineering
* Wolfgang Denk <wd@denx.de>
* Copyright (C) Procsys. All rights reserved.
* Mushtaq Khan <mushtaq_k@procsys.com>
* <mushtaqk_921@yahoo.co.in>
* (C) Copyright 2008-2009 Freescale Semiconductor, Inc.
* Terry Lv <r65388@freescale.com>
*
* 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
*/
#include <common.h>
#include <command.h>
#include <part.h>
#include <ata.h>
#include <pata.h>
int pata_curr_device = -1;
block_dev_desc_t pata_dev_desc[CONFIG_SYS_ATA_MAX_DEVICE];
int pata_initialize(void)
{
int rc;
int i;
for (i = 0; i < CONFIG_SYS_ATA_MAX_DEVICE; i++) {
memset(&pata_dev_desc[i], 0, sizeof(struct block_dev_desc));
pata_dev_desc[i].if_type = IF_TYPE_ATAPI;
pata_dev_desc[i].dev = i;
pata_dev_desc[i].part_type = PART_TYPE_UNKNOWN;
pata_dev_desc[i].type = DEV_TYPE_HARDDISK;
pata_dev_desc[i].lba = 0;
pata_dev_desc[i].blksz = 512;
pata_dev_desc[i].block_read = pata_read;
pata_dev_desc[i].block_write = pata_write;
rc = init_pata(i);
rc = scan_pata(i);
if ((pata_dev_desc[i].lba > 0) && (pata_dev_desc[i].blksz > 0))
init_part(&pata_dev_desc[i]);
}
pata_curr_device = 0;
return rc;
}
block_dev_desc_t *pata_get_dev(int dev)
{
return (dev < CONFIG_SYS_ATA_MAX_DEVICE) ? &pata_dev_desc[dev] : NULL;
}
int do_pata(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
int rc = 0;
if (argc == 2 && strcmp(argv[1], "init") == 0)
return pata_initialize();
/* If the user has not yet run `pata init`, do it now */
if (pata_curr_device == -1)
if (pata_initialize())
return 1;
switch (argc) {
case 0:
case 1:
printf("Usage:\n%s\n", cmdtp->usage);
return 1;
case 2:
if (strncmp(argv[1], "inf", 3) == 0) {
int i;
putc('\n');
for (i = 0; i < CONFIG_SYS_ATA_MAX_DEVICE; ++i) {
if (pata_dev_desc[i].type == DEV_TYPE_UNKNOWN)
continue;
printf("PATA device %d: ", i);
dev_print(&pata_dev_desc[i]);
}
return 0;
} else if (strncmp(argv[1], "dev", 3) == 0) {
if ((pata_curr_device < 0) || \
(pata_curr_device >= CONFIG_SYS_ATA_MAX_DEVICE)) {
puts("\nno PATA devices available\n");
return 1;
}
printf("\nPATA device %d: ", pata_curr_device);
dev_print(&pata_dev_desc[pata_curr_device]);
return 0;
} else if (strncmp(argv[1], "part", 4) == 0) {
int dev, ok;
for (ok = 0, dev = 0; dev < CONFIG_SYS_ATA_MAX_DEVICE; ++dev) {
if (pata_dev_desc[dev].part_type != PART_TYPE_UNKNOWN) {
++ok;
if (dev)
putc('\n');
print_part(&pata_dev_desc[dev]);
}
}
if (!ok) {
puts("\nno PATA devices available\n");
rc++;
}
return rc;
}
printf("Usage:\n%s\n", cmdtp->usage);
return 1;
case 3:
if (strncmp(argv[1], "dev", 3) == 0) {
int dev = (int)simple_strtoul(argv[2], NULL, 10);
printf("\nPATA device %d: ", dev);
if (dev >= CONFIG_SYS_ATA_MAX_DEVICE) {
puts("unknown device\n");
return 1;
}
dev_print(&pata_dev_desc[dev]);
if (pata_dev_desc[dev].type == DEV_TYPE_UNKNOWN)
return 1;
pata_curr_device = dev;
puts("... is now current device\n");
return 0;
} else if (strncmp(argv[1], "part", 4) == 0) {
int dev = (int)simple_strtoul(argv[2], NULL, 10);
if (pata_dev_desc[dev].part_type != PART_TYPE_UNKNOWN) {
print_part(&pata_dev_desc[dev]);
} else {
printf("\nPATA device %d not available\n", dev);
rc = 1;
}
return rc;
}
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
default: /* at least 4 args */
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);
printf("\nPATA read: device %d block # %ld, count %ld ... ",
pata_curr_device, blk, cnt);
n = pata_read(pata_curr_device, blk, cnt, (u32 *)addr);
/* flush cache after read */
flush_cache(addr, cnt * pata_dev_desc[pata_curr_device].blksz);
printf("%ld blocks read: %s\n",
n, (n == cnt) ? "OK" : "ERROR");
return (n == cnt) ? 0 : 1;
} else if (strcmp(argv[1], "write") == 0) {
ulong addr = simple_strtoul(argv[2], NULL, 16);
ulong cnt = simple_strtoul(argv[4], NULL, 16);
ulong n;
lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
printf("\nPATA write: device %d block # %ld, count %ld ... ",
pata_curr_device, blk, cnt);
n = pata_write(pata_curr_device, blk, cnt, (u32 *)addr);
printf("%ld blocks written: %s\n",
n, (n == cnt) ? "OK" : "ERROR");
return (n == cnt) ? 0 : 1;
} else {
printf("Usage:\n%s\n", cmdtp->usage);
rc = 1;
}
return rc;
}
}
U_BOOT_CMD(
pata, 5, 1, do_pata,
"pata - PATA sub system\n",
"pata info - show available PATA devices\n"
"pata device [dev] - show or set current device\n"
"pata part [dev] - print partition table\n"
"pata read addr blk# cnt\n"
"pata write addr blk# cnt\n");
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