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Viewing changes to common/cmd_sata.c

  • Committer: Bazaar Package Importer
  • Author(s): Oliver Grawert
  • Date: 2010-03-22 15:06:23 UTC
  • Revision ID: james.westby@ubuntu.com-20100322150623-i21g8rgiyl5dohag
Tags: upstream-2010.3git20100315
Import upstream version 2010.3git20100315

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common/cmd_sata.c
 
1
/*
 
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 * Copyright (C) 2000-2005, DENX Software Engineering
 
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 *              Wolfgang Denk <wd@denx.de>
 
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 * Copyright (C) Procsys. All rights reserved.
 
5
 *              Mushtaq Khan <mushtaq_k@procsys.com>
 
6
 *                      <mushtaqk_921@yahoo.co.in>
 
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 * Copyright (C) 2008 Freescale Semiconductor, Inc.
 
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 *              Dave Liu <daveliu@freescale.com>
 
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 *
 
10
 * 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
 
12
 * published by the Free Software Foundation; either version 2 of
 
13
 * the License, or (at your option) any later version.
 
14
 *
 
15
 * This program is distributed in the hope that it will be useful,
 
16
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 
17
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 
18
 * GNU General Public License for more details.
 
19
 *
 
20
 * You should have received a copy of the GNU General Public License
 
21
 * along with this program; if not, write to the Free Software
 
22
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 
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 * MA 02111-1307 USA
 
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 */
 
25
 
 
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#include <common.h>
 
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#include <command.h>
 
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#include <part.h>
 
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#include <sata.h>
 
30
 
 
31
int sata_curr_device = -1;
 
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block_dev_desc_t sata_dev_desc[CONFIG_SYS_SATA_MAX_DEVICE];
 
33
 
 
34
int __sata_initialize(void)
 
35
{
 
36
        int rc;
 
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        int i;
 
38
 
 
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        for (i = 0; i < CONFIG_SYS_SATA_MAX_DEVICE; i++) {
 
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                memset(&sata_dev_desc[i], 0, sizeof(struct block_dev_desc));
 
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                sata_dev_desc[i].if_type = IF_TYPE_SATA;
 
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                sata_dev_desc[i].dev = i;
 
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                sata_dev_desc[i].part_type = PART_TYPE_UNKNOWN;
 
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                sata_dev_desc[i].type = DEV_TYPE_HARDDISK;
 
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                sata_dev_desc[i].lba = 0;
 
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                sata_dev_desc[i].blksz = 512;
 
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                sata_dev_desc[i].block_read = sata_read;
 
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                sata_dev_desc[i].block_write = sata_write;
 
49
 
 
50
                rc = init_sata(i);
 
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                rc = scan_sata(i);
 
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                if ((sata_dev_desc[i].lba > 0) && (sata_dev_desc[i].blksz > 0))
 
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                        init_part(&sata_dev_desc[i]);
 
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        }
 
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        sata_curr_device = 0;
 
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        return rc;
 
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}
 
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int sata_initialize(void) __attribute__((weak,alias("__sata_initialize")));
 
59
 
 
60
block_dev_desc_t *sata_get_dev(int dev)
 
61
{
 
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        return (dev < CONFIG_SYS_SATA_MAX_DEVICE) ? &sata_dev_desc[dev] : NULL;
 
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}
 
64
 
 
65
int do_sata(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 
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{
 
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        int rc = 0;
 
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        if (argc == 2 && strcmp(argv[1], "init") == 0)
 
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                return sata_initialize();
 
71
 
 
72
        /* If the user has not yet run `sata init`, do it now */
 
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        if (sata_curr_device == -1)
 
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                if (sata_initialize())
 
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                        return 1;
 
76
 
 
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        switch (argc) {
 
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        case 0:
 
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        case 1:
 
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                cmd_usage(cmdtp);
 
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                return 1;
 
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        case 2:
 
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                if (strncmp(argv[1],"inf", 3) == 0) {
 
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                        int i;
 
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                        putc('\n');
 
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                        for (i = 0; i < CONFIG_SYS_SATA_MAX_DEVICE; ++i) {
 
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                                if (sata_dev_desc[i].type == DEV_TYPE_UNKNOWN)
 
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                                        continue;
 
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                                printf ("SATA device %d: ", i);
 
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                                dev_print(&sata_dev_desc[i]);
 
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                        }
 
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                        return 0;
 
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                } else if (strncmp(argv[1],"dev", 3) == 0) {
 
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                        if ((sata_curr_device < 0) || (sata_curr_device >= CONFIG_SYS_SATA_MAX_DEVICE)) {
 
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                                puts("\nno SATA devices available\n");
 
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                                return 1;
 
97
                        }
 
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                        printf("\nSATA device %d: ", sata_curr_device);
 
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                        dev_print(&sata_dev_desc[sata_curr_device]);
 
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                        return 0;
 
101
                } else if (strncmp(argv[1],"part",4) == 0) {
 
102
                        int dev, ok;
 
103
 
 
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                        for (ok = 0, dev = 0; dev < CONFIG_SYS_SATA_MAX_DEVICE; ++dev) {
 
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                                if (sata_dev_desc[dev].part_type != PART_TYPE_UNKNOWN) {
 
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                                        ++ok;
 
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                                        if (dev)
 
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                                                putc ('\n');
 
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                                        print_part(&sata_dev_desc[dev]);
 
110
                                }
 
111
                        }
 
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                        if (!ok) {
 
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                                puts("\nno SATA devices available\n");
 
114
                                rc ++;
 
115
                        }
 
116
                        return rc;
 
117
                }
 
118
                cmd_usage(cmdtp);
 
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                return 1;
 
120
        case 3:
 
121
                if (strncmp(argv[1], "dev", 3) == 0) {
 
122
                        int dev = (int)simple_strtoul(argv[2], NULL, 10);
 
123
 
 
124
                        printf("\nSATA device %d: ", dev);
 
125
                        if (dev >= CONFIG_SYS_SATA_MAX_DEVICE) {
 
126
                                puts ("unknown device\n");
 
127
                                return 1;
 
128
                        }
 
129
                        dev_print(&sata_dev_desc[dev]);
 
130
 
 
131
                        if (sata_dev_desc[dev].type == DEV_TYPE_UNKNOWN)
 
132
                                return 1;
 
133
 
 
134
                        sata_curr_device = dev;
 
135
 
 
136
                        puts("... is now current device\n");
 
137
 
 
138
                        return 0;
 
139
                } else if (strncmp(argv[1], "part", 4) == 0) {
 
140
                        int dev = (int)simple_strtoul(argv[2], NULL, 10);
 
141
 
 
142
                        if (sata_dev_desc[dev].part_type != PART_TYPE_UNKNOWN) {
 
143
                                print_part(&sata_dev_desc[dev]);
 
144
                        } else {
 
145
                                printf("\nSATA device %d not available\n", dev);
 
146
                                rc = 1;
 
147
                        }
 
148
                        return rc;
 
149
                }
 
150
                cmd_usage(cmdtp);
 
151
                return 1;
 
152
 
 
153
        default: /* at least 4 args */
 
154
                if (strcmp(argv[1], "read") == 0) {
 
155
                        ulong addr = simple_strtoul(argv[2], NULL, 16);
 
156
                        ulong cnt = simple_strtoul(argv[4], NULL, 16);
 
157
                        ulong n;
 
158
                        lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
 
159
 
 
160
                        printf("\nSATA read: device %d block # %ld, count %ld ... ",
 
161
                                sata_curr_device, blk, cnt);
 
162
 
 
163
                        n = sata_read(sata_curr_device, blk, cnt, (u32 *)addr);
 
164
 
 
165
                        /* flush cache after read */
 
166
                        flush_cache(addr, cnt * sata_dev_desc[sata_curr_device].blksz);
 
167
 
 
168
                        printf("%ld blocks read: %s\n",
 
169
                                n, (n==cnt) ? "OK" : "ERROR");
 
170
                        return (n == cnt) ? 0 : 1;
 
171
                } else if (strcmp(argv[1], "write") == 0) {
 
172
                        ulong addr = simple_strtoul(argv[2], NULL, 16);
 
173
                        ulong cnt = simple_strtoul(argv[4], NULL, 16);
 
174
                        ulong n;
 
175
 
 
176
                        lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
 
177
 
 
178
                        printf("\nSATA write: device %d block # %ld, count %ld ... ",
 
179
                                sata_curr_device, blk, cnt);
 
180
 
 
181
                        n = sata_write(sata_curr_device, blk, cnt, (u32 *)addr);
 
182
 
 
183
                        printf("%ld blocks written: %s\n",
 
184
                                n, (n == cnt) ? "OK" : "ERROR");
 
185
                        return (n == cnt) ? 0 : 1;
 
186
                } else {
 
187
                        cmd_usage(cmdtp);
 
188
                        rc = 1;
 
189
                }
 
190
 
 
191
                return rc;
 
192
        }
 
193
}
 
194
 
 
195
U_BOOT_CMD(
 
196
        sata, 5, 1, do_sata,
 
197
        "SATA sub system",
 
198
        "sata init - init SATA sub system\n"
 
199
        "sata info - show available SATA devices\n"
 
200
        "sata device [dev] - show or set current device\n"
 
201
        "sata part [dev] - print partition table\n"
 
202
        "sata read addr blk# cnt\n"
 
203
        "sata write addr blk# cnt"
 
204
);