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wdenkc6097192002-11-03 00:24:07 +00001/*
Wolfgang Denk34c202c2011-10-29 09:41:40 +00002 * (C) Copyright 2000-2011
wdenkc6097192002-11-03 00:24:07 +00003 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 *
23 */
24
25/*
26 * IDE support
27 */
Albert Aribaud113bfe42010-08-08 05:17:06 +053028
wdenkc6097192002-11-03 00:24:07 +000029#include <common.h>
30#include <config.h>
31#include <watchdog.h>
32#include <command.h>
33#include <image.h>
34#include <asm/byteorder.h>
Heiko Schocherf98984c2007-08-28 17:39:14 +020035#include <asm/io.h>
Grant Likely735dd972007-02-20 09:04:34 +010036
wdenkc6097192002-11-03 00:24:07 +000037#if defined(CONFIG_IDE_8xx_DIRECT) || defined(CONFIG_IDE_PCMCIA)
38# include <pcmcia.h>
39#endif
Grant Likely735dd972007-02-20 09:04:34 +010040
wdenkc6097192002-11-03 00:24:07 +000041#include <ide.h>
42#include <ata.h>
Grant Likely735dd972007-02-20 09:04:34 +010043
wdenkc6097192002-11-03 00:24:07 +000044#ifdef CONFIG_STATUS_LED
45# include <status_led.h>
46#endif
Grant Likely735dd972007-02-20 09:04:34 +010047
wdenk5cf91d62004-04-23 20:32:05 +000048#ifdef __PPC__
49# define EIEIO __asm__ volatile ("eieio")
wdenk1a344f22005-02-03 23:00:49 +000050# define SYNC __asm__ volatile ("sync")
wdenk5cf91d62004-04-23 20:32:05 +000051#else
52# define EIEIO /* nothing */
wdenk1a344f22005-02-03 23:00:49 +000053# define SYNC /* nothing */
wdenkc6097192002-11-03 00:24:07 +000054#endif
55
wdenkc6097192002-11-03 00:24:07 +000056/* ------------------------------------------------------------------------- */
57
58/* Current I/O Device */
59static int curr_device = -1;
60
61/* Current offset for IDE0 / IDE1 bus access */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020062ulong ide_bus_offset[CONFIG_SYS_IDE_MAXBUS] = {
63#if defined(CONFIG_SYS_ATA_IDE0_OFFSET)
64 CONFIG_SYS_ATA_IDE0_OFFSET,
wdenkc6097192002-11-03 00:24:07 +000065#endif
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020066#if defined(CONFIG_SYS_ATA_IDE1_OFFSET) && (CONFIG_SYS_IDE_MAXBUS > 1)
67 CONFIG_SYS_ATA_IDE1_OFFSET,
wdenkc6097192002-11-03 00:24:07 +000068#endif
69};
70
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020071static int ide_bus_ok[CONFIG_SYS_IDE_MAXBUS];
wdenkc6097192002-11-03 00:24:07 +000072
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020073block_dev_desc_t ide_dev_desc[CONFIG_SYS_IDE_MAXDEVICE];
wdenkc6097192002-11-03 00:24:07 +000074/* ------------------------------------------------------------------------- */
75
wdenkc6097192002-11-03 00:24:07 +000076#ifdef CONFIG_IDE_RESET
77static void ide_reset (void);
78#else
79#define ide_reset() /* dummy */
80#endif
81
82static void ide_ident (block_dev_desc_t *dev_desc);
83static uchar ide_wait (int dev, ulong t);
84
85#define IDE_TIME_OUT 2000 /* 2 sec timeout */
86
87#define ATAPI_TIME_OUT 7000 /* 7 sec timeout (5 sec seems to work...) */
88
89#define IDE_SPIN_UP_TIME_OUT 5000 /* 5 sec spin-up timeout */
90
wdenkc6097192002-11-03 00:24:07 +000091static void ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len);
92
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020093#ifndef CONFIG_SYS_ATA_PORT_ADDR
94#define CONFIG_SYS_ATA_PORT_ADDR(port) (port)
Heiko Schocher566a4942007-06-22 19:11:54 +020095#endif
wdenkc6097192002-11-03 00:24:07 +000096
97#ifdef CONFIG_ATAPI
98static void atapi_inquiry(block_dev_desc_t *dev_desc);
Simon Glassb6458d32012-10-29 05:24:04 +000099static ulong atapi_read(int device, ulong blknr, lbaint_t blkcnt,
100 void *buffer);
wdenkc6097192002-11-03 00:24:07 +0000101#endif
102
103
wdenkc6097192002-11-03 00:24:07 +0000104/* ------------------------------------------------------------------------- */
105
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000106int do_ide(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
wdenkc6097192002-11-03 00:24:07 +0000107{
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000108 int rcode = 0;
wdenkc6097192002-11-03 00:24:07 +0000109
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000110 switch (argc) {
111 case 0:
112 case 1:
Simon Glass4c12eeb2011-12-10 08:44:01 +0000113 return CMD_RET_USAGE;
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000114 case 2:
115 if (strncmp(argv[1], "res", 3) == 0) {
116 puts("\nReset IDE"
117#ifdef CONFIG_IDE_8xx_DIRECT
118 " on PCMCIA " PCMCIA_SLOT_MSG
119#endif
120 ": ");
wdenkc6097192002-11-03 00:24:07 +0000121
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000122 ide_init();
123 return 0;
124 } else if (strncmp(argv[1], "inf", 3) == 0) {
125 int i;
126
127 putc('\n');
128
129 for (i = 0; i < CONFIG_SYS_IDE_MAXDEVICE; ++i) {
130 if (ide_dev_desc[i].type == DEV_TYPE_UNKNOWN)
131 continue; /* list only known devices */
132 printf("IDE device %d: ", i);
133 dev_print(&ide_dev_desc[i]);
134 }
135 return 0;
136
137 } else if (strncmp(argv[1], "dev", 3) == 0) {
138 if ((curr_device < 0)
139 || (curr_device >= CONFIG_SYS_IDE_MAXDEVICE)) {
140 puts("\nno IDE devices available\n");
141 return 1;
142 }
143 printf("\nIDE device %d: ", curr_device);
144 dev_print(&ide_dev_desc[curr_device]);
145 return 0;
146 } else if (strncmp(argv[1], "part", 4) == 0) {
147 int dev, ok;
148
149 for (ok = 0, dev = 0;
150 dev < CONFIG_SYS_IDE_MAXDEVICE;
151 ++dev) {
152 if (ide_dev_desc[dev].part_type !=
153 PART_TYPE_UNKNOWN) {
154 ++ok;
155 if (dev)
156 putc('\n');
157 print_part(&ide_dev_desc[dev]);
158 }
159 }
160 if (!ok) {
161 puts("\nno IDE devices available\n");
162 rcode++;
163 }
164 return rcode;
165 }
Simon Glass4c12eeb2011-12-10 08:44:01 +0000166 return CMD_RET_USAGE;
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000167 case 3:
168 if (strncmp(argv[1], "dev", 3) == 0) {
169 int dev = (int) simple_strtoul(argv[2], NULL, 10);
170
171 printf("\nIDE device %d: ", dev);
172 if (dev >= CONFIG_SYS_IDE_MAXDEVICE) {
173 puts("unknown device\n");
174 return 1;
175 }
176 dev_print(&ide_dev_desc[dev]);
177 /*ide_print (dev); */
178
179 if (ide_dev_desc[dev].type == DEV_TYPE_UNKNOWN)
180 return 1;
181
182 curr_device = dev;
183
184 puts("... is now current device\n");
185
186 return 0;
187 } else if (strncmp(argv[1], "part", 4) == 0) {
188 int dev = (int) simple_strtoul(argv[2], NULL, 10);
189
190 if (ide_dev_desc[dev].part_type != PART_TYPE_UNKNOWN) {
191 print_part(&ide_dev_desc[dev]);
192 } else {
193 printf("\nIDE device %d not available\n",
194 dev);
195 rcode = 1;
196 }
197 return rcode;
198 }
199
Simon Glass4c12eeb2011-12-10 08:44:01 +0000200 return CMD_RET_USAGE;
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000201 default:
202 /* at least 4 args */
203
204 if (strcmp(argv[1], "read") == 0) {
205 ulong addr = simple_strtoul(argv[2], NULL, 16);
206 ulong cnt = simple_strtoul(argv[4], NULL, 16);
207 ulong n;
208
209#ifdef CONFIG_SYS_64BIT_LBA
210 lbaint_t blk = simple_strtoull(argv[3], NULL, 16);
211
212 printf("\nIDE read: device %d block # %lld, count %ld ... ",
213 curr_device, blk, cnt);
214#else
215 lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
216
217 printf("\nIDE read: device %d block # %ld, count %ld ... ",
218 curr_device, blk, cnt);
219#endif
220
221 n = ide_dev_desc[curr_device].block_read(curr_device,
222 blk, cnt,
223 (ulong *)addr);
224 /* flush cache after read */
225 flush_cache(addr,
226 cnt * ide_dev_desc[curr_device].blksz);
227
228 printf("%ld blocks read: %s\n",
229 n, (n == cnt) ? "OK" : "ERROR");
230 if (n == cnt)
231 return 0;
232 else
233 return 1;
234 } else if (strcmp(argv[1], "write") == 0) {
235 ulong addr = simple_strtoul(argv[2], NULL, 16);
236 ulong cnt = simple_strtoul(argv[4], NULL, 16);
237 ulong n;
238
239#ifdef CONFIG_SYS_64BIT_LBA
240 lbaint_t blk = simple_strtoull(argv[3], NULL, 16);
241
242 printf("\nIDE write: device %d block # %lld, count %ld ... ",
243 curr_device, blk, cnt);
244#else
245 lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
246
247 printf("\nIDE write: device %d block # %ld, count %ld ... ",
248 curr_device, blk, cnt);
249#endif
250 n = ide_write(curr_device, blk, cnt, (ulong *) addr);
251
252 printf("%ld blocks written: %s\n",
253 n, (n == cnt) ? "OK" : "ERROR");
254 if (n == cnt)
255 return 0;
256 else
257 return 1;
258 } else {
Simon Glass4c12eeb2011-12-10 08:44:01 +0000259 return CMD_RET_USAGE;
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000260 }
261
262 return rcode;
263 }
wdenkc6097192002-11-03 00:24:07 +0000264}
265
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000266int do_diskboot(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
wdenkc6097192002-11-03 00:24:07 +0000267{
Rob Herring7405a132012-09-21 04:02:30 +0000268 return common_diskboot(cmdtp, "ide", argc, argv);
wdenkc6097192002-11-03 00:24:07 +0000269}
270
271/* ------------------------------------------------------------------------- */
272
Pavel Herrmann19be2ea2012-10-07 05:56:10 +0000273void __ide_led(uchar led, uchar status)
274{
275#if defined(CONFIG_IDE_LED) && defined(PER8_BASE) /* required by LED_PORT */
276 static uchar led_buffer; /* Buffer for current LED status */
277
278 uchar *led_port = LED_PORT;
279
280 if (status) /* switch LED on */
281 led_buffer |= led;
282 else /* switch LED off */
283 led_buffer &= ~led;
284
285 *led_port = led_buffer;
286#endif
287}
288
289void ide_led(uchar led, uchar status)
290 __attribute__ ((weak, alias("__ide_led")));
291
292#ifndef CONFIG_IDE_LED /* define LED macros, they are not used anyways */
293# define DEVICE_LED(x) 0
294# define LED_IDE1 1
295# define LED_IDE2 2
296#endif
297
298/* ------------------------------------------------------------------------- */
299
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000300inline void __ide_outb(int dev, int port, unsigned char val)
Stefan Roesef2302d42008-08-06 14:05:38 +0200301{
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000302 debug("ide_outb (dev= %d, port= 0x%x, val= 0x%02x) : @ 0x%08lx\n",
303 dev, port, val,
304 (ATA_CURR_BASE(dev) + CONFIG_SYS_ATA_PORT_ADDR(port)));
Macpaul Lin0abddf82011-04-11 20:45:32 +0000305
306#if defined(CONFIG_IDE_AHB)
307 if (port) {
308 /* write command */
309 ide_write_register(dev, port, val);
310 } else {
311 /* write data */
312 outb(val, (ATA_CURR_BASE(dev)));
313 }
314#else
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000315 outb(val, (ATA_CURR_BASE(dev) + CONFIG_SYS_ATA_PORT_ADDR(port)));
Macpaul Lin0abddf82011-04-11 20:45:32 +0000316#endif
Stefan Roesef2302d42008-08-06 14:05:38 +0200317}
Macpaul Lin0abddf82011-04-11 20:45:32 +0000318
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000319void ide_outb(int dev, int port, unsigned char val)
320 __attribute__ ((weak, alias("__ide_outb")));
Stefan Roesef2302d42008-08-06 14:05:38 +0200321
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000322inline unsigned char __ide_inb(int dev, int port)
Stefan Roesef2302d42008-08-06 14:05:38 +0200323{
324 uchar val;
Macpaul Lin0abddf82011-04-11 20:45:32 +0000325
326#if defined(CONFIG_IDE_AHB)
327 val = ide_read_register(dev, port);
328#else
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000329 val = inb((ATA_CURR_BASE(dev) + CONFIG_SYS_ATA_PORT_ADDR(port)));
Macpaul Lin0abddf82011-04-11 20:45:32 +0000330#endif
331
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000332 debug("ide_inb (dev= %d, port= 0x%x) : @ 0x%08lx -> 0x%02x\n",
333 dev, port,
334 (ATA_CURR_BASE(dev) + CONFIG_SYS_ATA_PORT_ADDR(port)), val);
Stefan Roesef2302d42008-08-06 14:05:38 +0200335 return val;
336}
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000337
Kim Phillips2df72b82009-05-19 12:53:36 -0500338unsigned char ide_inb(int dev, int port)
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000339 __attribute__ ((weak, alias("__ide_inb")));
Stefan Roesef2302d42008-08-06 14:05:38 +0200340
Steven A. Falco36c2d302008-08-15 15:34:10 -0400341#ifdef CONFIG_TUNE_PIO
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000342inline int __ide_set_piomode(int pio_mode)
Steven A. Falco36c2d302008-08-15 15:34:10 -0400343{
344 return 0;
345}
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000346
347inline int ide_set_piomode(int pio_mode)
348 __attribute__ ((weak, alias("__ide_set_piomode")));
Steven A. Falco36c2d302008-08-15 15:34:10 -0400349#endif
350
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000351void ide_init(void)
wdenkc6097192002-11-03 00:24:07 +0000352{
wdenkc6097192002-11-03 00:24:07 +0000353 unsigned char c;
354 int i, bus;
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000355
wdenk9fd5e312003-12-07 23:55:12 +0000356#ifdef CONFIG_IDE_8xx_PCCARD
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000357 extern int ide_devices_found; /* Initialized in check_ide_device() */
358#endif /* CONFIG_IDE_8xx_PCCARD */
wdenk9fd5e312003-12-07 23:55:12 +0000359
360#ifdef CONFIG_IDE_PREINIT
361 WATCHDOG_RESET();
362
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000363 if (ide_preinit()) {
364 puts("ide_preinit failed\n");
wdenk9fd5e312003-12-07 23:55:12 +0000365 return;
366 }
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000367#endif /* CONFIG_IDE_PREINIT */
wdenkc6097192002-11-03 00:24:07 +0000368
wdenkc6097192002-11-03 00:24:07 +0000369 WATCHDOG_RESET();
370
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000371 /*
372 * Reset the IDE just to be sure.
wdenkc6097192002-11-03 00:24:07 +0000373 * Light LED's to show
374 */
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000375 ide_led((LED_IDE1 | LED_IDE2), 1); /* LED's on */
376
377 /* ATAPI Drives seems to need a proper IDE Reset */
378 ide_reset();
wdenkc6097192002-11-03 00:24:07 +0000379
Pavel Herrmann8d1165e11a2012-10-09 07:01:56 +0000380#ifdef CONFIG_IDE_INIT_POSTRESET
381 WATCHDOG_RESET();
wdenkc6097192002-11-03 00:24:07 +0000382
Pavel Herrmann8d1165e11a2012-10-09 07:01:56 +0000383 if (ide_init_postreset()) {
384 puts("ide_preinit_postreset failed\n");
385 return;
386 }
387#endif /* CONFIG_IDE_INIT_POSTRESET */
wdenkc6097192002-11-03 00:24:07 +0000388
389 /*
390 * Wait for IDE to get ready.
391 * According to spec, this can take up to 31 seconds!
392 */
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000393 for (bus = 0; bus < CONFIG_SYS_IDE_MAXBUS; ++bus) {
394 int dev =
395 bus * (CONFIG_SYS_IDE_MAXDEVICE /
396 CONFIG_SYS_IDE_MAXBUS);
wdenkc6097192002-11-03 00:24:07 +0000397
wdenk6069ff22003-02-28 00:49:47 +0000398#ifdef CONFIG_IDE_8xx_PCCARD
399 /* Skip non-ide devices from probing */
400 if ((ide_devices_found & (1 << bus)) == 0) {
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000401 ide_led((LED_IDE1 | LED_IDE2), 0); /* LED's off */
wdenk6069ff22003-02-28 00:49:47 +0000402 continue;
403 }
404#endif
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000405 printf("Bus %d: ", bus);
wdenkc6097192002-11-03 00:24:07 +0000406
407 ide_bus_ok[bus] = 0;
408
409 /* Select device
410 */
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000411 udelay(100000); /* 100 ms */
412 ide_outb(dev, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(dev));
413 udelay(100000); /* 100 ms */
wdenkc6097192002-11-03 00:24:07 +0000414 i = 0;
415 do {
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000416 udelay(10000); /* 10 ms */
wdenkc6097192002-11-03 00:24:07 +0000417
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000418 c = ide_inb(dev, ATA_STATUS);
wdenkc6097192002-11-03 00:24:07 +0000419 i++;
420 if (i > (ATA_RESET_TIME * 100)) {
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000421 puts("** Timeout **\n");
422 /* LED's off */
423 ide_led((LED_IDE1 | LED_IDE2), 0);
wdenkc6097192002-11-03 00:24:07 +0000424 return;
425 }
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000426 if ((i >= 100) && ((i % 100) == 0))
427 putc('.');
428
wdenkc6097192002-11-03 00:24:07 +0000429 } while (c & ATA_STAT_BUSY);
430
431 if (c & (ATA_STAT_BUSY | ATA_STAT_FAULT)) {
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000432 puts("not available ");
433 debug("Status = 0x%02X ", c);
434#ifndef CONFIG_ATAPI /* ATAPI Devices do not set DRDY */
435 } else if ((c & ATA_STAT_READY) == 0) {
436 puts("not available ");
437 debug("Status = 0x%02X ", c);
wdenkc6097192002-11-03 00:24:07 +0000438#endif
439 } else {
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000440 puts("OK ");
wdenkc6097192002-11-03 00:24:07 +0000441 ide_bus_ok[bus] = 1;
442 }
443 WATCHDOG_RESET();
444 }
wdenkc7de8292002-11-19 11:04:11 +0000445
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000446 putc('\n');
wdenkc6097192002-11-03 00:24:07 +0000447
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000448 ide_led((LED_IDE1 | LED_IDE2), 0); /* LED's off */
wdenkc6097192002-11-03 00:24:07 +0000449
450 curr_device = -1;
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000451 for (i = 0; i < CONFIG_SYS_IDE_MAXDEVICE; ++i) {
wdenkc6097192002-11-03 00:24:07 +0000452 int led = (IDE_BUS(i) == 0) ? LED_IDE1 : LED_IDE2;
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000453 ide_dev_desc[i].type = DEV_TYPE_UNKNOWN;
454 ide_dev_desc[i].if_type = IF_TYPE_IDE;
455 ide_dev_desc[i].dev = i;
456 ide_dev_desc[i].part_type = PART_TYPE_UNKNOWN;
457 ide_dev_desc[i].blksz = 0;
458 ide_dev_desc[i].lba = 0;
459 ide_dev_desc[i].block_read = ide_read;
Macpaul Lin0abddf82011-04-11 20:45:32 +0000460 ide_dev_desc[i].block_write = ide_write;
wdenkc6097192002-11-03 00:24:07 +0000461 if (!ide_bus_ok[IDE_BUS(i)])
462 continue;
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000463 ide_led(led, 1); /* LED on */
wdenkc6097192002-11-03 00:24:07 +0000464 ide_ident(&ide_dev_desc[i]);
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000465 ide_led(led, 0); /* LED off */
wdenkc6097192002-11-03 00:24:07 +0000466 dev_print(&ide_dev_desc[i]);
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000467
wdenkc6097192002-11-03 00:24:07 +0000468 if ((ide_dev_desc[i].lba > 0) && (ide_dev_desc[i].blksz > 0)) {
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000469 /* initialize partition type */
470 init_part(&ide_dev_desc[i]);
wdenkc6097192002-11-03 00:24:07 +0000471 if (curr_device < 0)
472 curr_device = i;
473 }
474 }
475 WATCHDOG_RESET();
476}
477
478/* ------------------------------------------------------------------------- */
479
Matthew McClintockdf3fc522011-05-24 05:31:19 +0000480#ifdef CONFIG_PARTITIONS
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000481block_dev_desc_t *ide_get_dev(int dev)
wdenkc6097192002-11-03 00:24:07 +0000482{
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200483 return (dev < CONFIG_SYS_IDE_MAXDEVICE) ? &ide_dev_desc[dev] : NULL;
wdenkc6097192002-11-03 00:24:07 +0000484}
Matthew McClintockdf3fc522011-05-24 05:31:19 +0000485#endif
wdenkc6097192002-11-03 00:24:07 +0000486
wdenkc6097192002-11-03 00:24:07 +0000487/* ------------------------------------------------------------------------- */
488
Pavel Herrmannf5b82c02012-10-09 07:04:39 +0000489void ide_input_swap_data(int dev, ulong *sect_buf, int words)
490 __attribute__ ((weak, alias("__ide_input_swap_data")));
491
492void ide_input_data(int dev, ulong *sect_buf, int words)
493 __attribute__ ((weak, alias("__ide_input_data")));
494
495void ide_output_data(int dev, const ulong *sect_buf, int words)
496 __attribute__ ((weak, alias("__ide_output_data")));
497
wdenk5da627a2003-10-09 20:09:04 +0000498/* We only need to swap data if we are running on a big endian cpu. */
Pavel Herrmann4d1361d2012-10-09 07:10:08 +0000499#if defined(__LITTLE_ENDIAN)
Pavel Herrmannf5b82c02012-10-09 07:04:39 +0000500void __ide_input_swap_data(int dev, ulong *sect_buf, int words)
501{
502 ide_input_data(dev, sect_buf, words);
503}
wdenk5da627a2003-10-09 20:09:04 +0000504#else
Pavel Herrmannf5b82c02012-10-09 07:04:39 +0000505void __ide_input_swap_data(int dev, ulong *sect_buf, int words)
wdenkc6097192002-11-03 00:24:07 +0000506{
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000507 volatile ushort *pbuf =
508 (ushort *) (ATA_CURR_BASE(dev) + ATA_DATA_REG);
509 ushort *dbuf = (ushort *) sect_buf;
wdenk1a344f22005-02-03 23:00:49 +0000510
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000511 debug("in input swap data base for read is %lx\n",
512 (unsigned long) pbuf);
wdenk1a344f22005-02-03 23:00:49 +0000513
514 while (words--) {
Wolfgang Denk0c32d962006-06-16 17:32:31 +0200515#ifdef __MIPS__
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000516 *dbuf++ = swab16p((u16 *) pbuf);
517 *dbuf++ = swab16p((u16 *) pbuf);
Wolfgang Denk0c32d962006-06-16 17:32:31 +0200518#else
wdenk1a344f22005-02-03 23:00:49 +0000519 *dbuf++ = ld_le16(pbuf);
520 *dbuf++ = ld_le16(pbuf);
Wolfgang Denk0c32d962006-06-16 17:32:31 +0200521#endif /* !MIPS */
wdenk1a344f22005-02-03 23:00:49 +0000522 }
wdenkc6097192002-11-03 00:24:07 +0000523}
Pavel Herrmann4d1361d2012-10-09 07:10:08 +0000524#endif /* __LITTLE_ENDIAN */
wdenkc6097192002-11-03 00:24:07 +0000525
wdenk2262cfe2002-11-18 00:14:45 +0000526
Albert Aribaudf2a37fc2010-08-08 05:17:05 +0530527#if defined(CONFIG_IDE_SWAP_IO)
Pavel Herrmannf5b82c02012-10-09 07:04:39 +0000528void __ide_output_data(int dev, const ulong *sect_buf, int words)
wdenkc6097192002-11-03 00:24:07 +0000529{
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000530 ushort *dbuf;
531 volatile ushort *pbuf;
wdenk1a344f22005-02-03 23:00:49 +0000532
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000533 pbuf = (ushort *) (ATA_CURR_BASE(dev) + ATA_DATA_REG);
534 dbuf = (ushort *) sect_buf;
wdenk1a344f22005-02-03 23:00:49 +0000535 while (words--) {
536 EIEIO;
537 *pbuf = *dbuf++;
538 EIEIO;
539 *pbuf = *dbuf++;
540 }
wdenkc6097192002-11-03 00:24:07 +0000541}
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000542#else /* ! CONFIG_IDE_SWAP_IO */
Pavel Herrmannf5b82c02012-10-09 07:04:39 +0000543void __ide_output_data(int dev, const ulong *sect_buf, int words)
wdenk2262cfe2002-11-18 00:14:45 +0000544{
Macpaul Lin0abddf82011-04-11 20:45:32 +0000545#if defined(CONFIG_IDE_AHB)
546 ide_write_data(dev, sect_buf, words);
547#else
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000548 outsw(ATA_CURR_BASE(dev) + ATA_DATA_REG, sect_buf, words << 1);
Macpaul Lin0abddf82011-04-11 20:45:32 +0000549#endif
wdenk2262cfe2002-11-18 00:14:45 +0000550}
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000551#endif /* CONFIG_IDE_SWAP_IO */
wdenkc6097192002-11-03 00:24:07 +0000552
Albert Aribaudf2a37fc2010-08-08 05:17:05 +0530553#if defined(CONFIG_IDE_SWAP_IO)
Pavel Herrmannf5b82c02012-10-09 07:04:39 +0000554void __ide_input_data(int dev, ulong *sect_buf, int words)
wdenkc6097192002-11-03 00:24:07 +0000555{
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000556 ushort *dbuf;
557 volatile ushort *pbuf;
wdenk1a344f22005-02-03 23:00:49 +0000558
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000559 pbuf = (ushort *) (ATA_CURR_BASE(dev) + ATA_DATA_REG);
560 dbuf = (ushort *) sect_buf;
wdenk1a344f22005-02-03 23:00:49 +0000561
562 debug("in input data base for read is %lx\n", (unsigned long) pbuf);
563
564 while (words--) {
565 EIEIO;
566 *dbuf++ = *pbuf;
567 EIEIO;
568 *dbuf++ = *pbuf;
569 }
wdenkc6097192002-11-03 00:24:07 +0000570}
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000571#else /* ! CONFIG_IDE_SWAP_IO */
Pavel Herrmannf5b82c02012-10-09 07:04:39 +0000572void __ide_input_data(int dev, ulong *sect_buf, int words)
wdenk2262cfe2002-11-18 00:14:45 +0000573{
Macpaul Lin0abddf82011-04-11 20:45:32 +0000574#if defined(CONFIG_IDE_AHB)
575 ide_read_data(dev, sect_buf, words);
576#else
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000577 insw(ATA_CURR_BASE(dev) + ATA_DATA_REG, sect_buf, words << 1);
Macpaul Lin0abddf82011-04-11 20:45:32 +0000578#endif
wdenk2262cfe2002-11-18 00:14:45 +0000579}
580
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000581#endif /* CONFIG_IDE_SWAP_IO */
wdenkc6097192002-11-03 00:24:07 +0000582
583/* -------------------------------------------------------------------------
584 */
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000585static void ide_ident(block_dev_desc_t *dev_desc)
wdenkc6097192002-11-03 00:24:07 +0000586{
wdenkc6097192002-11-03 00:24:07 +0000587 unsigned char c;
Marek Vasutb18eabf2011-08-20 09:15:13 +0000588 hd_driveid_t iop;
wdenkc6097192002-11-03 00:24:07 +0000589
wdenk64f70be2004-09-28 20:34:50 +0000590#ifdef CONFIG_ATAPI
591 int retries = 0;
wdenkc7de8292002-11-19 11:04:11 +0000592#endif
593
Steven A. Falco36c2d302008-08-15 15:34:10 -0400594#ifdef CONFIG_TUNE_PIO
595 int pio_mode;
596#endif
597
wdenkc6097192002-11-03 00:24:07 +0000598#if 0
599 int mode, cycle_time;
600#endif
601 int device;
wdenkc6097192002-11-03 00:24:07 +0000602
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000603 device = dev_desc->dev;
604 printf(" Device %d: ", device);
605
606 ide_led(DEVICE_LED(device), 1); /* LED on */
wdenkc6097192002-11-03 00:24:07 +0000607 /* Select device
608 */
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000609 ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
610 dev_desc->if_type = IF_TYPE_IDE;
wdenkc6097192002-11-03 00:24:07 +0000611#ifdef CONFIG_ATAPI
wdenkc7de8292002-11-19 11:04:11 +0000612
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000613 retries = 0;
wdenkc7de8292002-11-19 11:04:11 +0000614
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000615 /* Warning: This will be tricky to read */
616 while (retries <= 1) {
617 /* check signature */
618 if ((ide_inb(device, ATA_SECT_CNT) == 0x01) &&
619 (ide_inb(device, ATA_SECT_NUM) == 0x01) &&
620 (ide_inb(device, ATA_CYL_LOW) == 0x14) &&
621 (ide_inb(device, ATA_CYL_HIGH) == 0xEB)) {
622 /* ATAPI Signature found */
623 dev_desc->if_type = IF_TYPE_ATAPI;
624 /*
625 * Start Ident Command
626 */
627 ide_outb(device, ATA_COMMAND, ATAPI_CMD_IDENT);
628 /*
629 * Wait for completion - ATAPI devices need more time
630 * to become ready
631 */
632 c = ide_wait(device, ATAPI_TIME_OUT);
633 } else
wdenkc6097192002-11-03 00:24:07 +0000634#endif
wdenk1a344f22005-02-03 23:00:49 +0000635 {
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000636 /*
637 * Start Ident Command
638 */
639 ide_outb(device, ATA_COMMAND, ATA_CMD_IDENT);
640
641 /*
642 * Wait for completion
643 */
644 c = ide_wait(device, IDE_TIME_OUT);
wdenk1a344f22005-02-03 23:00:49 +0000645 }
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000646 ide_led(DEVICE_LED(device), 0); /* LED off */
647
648 if (((c & ATA_STAT_DRQ) == 0) ||
649 ((c & (ATA_STAT_FAULT | ATA_STAT_ERR)) != 0)) {
wdenk64f70be2004-09-28 20:34:50 +0000650#ifdef CONFIG_ATAPI
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000651 {
652 /*
653 * Need to soft reset the device
654 * in case it's an ATAPI...
655 */
656 debug("Retrying...\n");
657 ide_outb(device, ATA_DEV_HD,
658 ATA_LBA | ATA_DEVICE(device));
659 udelay(100000);
660 ide_outb(device, ATA_COMMAND, 0x08);
661 udelay(500000); /* 500 ms */
662 }
663 /*
664 * Select device
665 */
666 ide_outb(device, ATA_DEV_HD,
667 ATA_LBA | ATA_DEVICE(device));
668 retries++;
669#else
670 return;
671#endif
672 }
673#ifdef CONFIG_ATAPI
674 else
675 break;
676 } /* see above - ugly to read */
wdenk64f70be2004-09-28 20:34:50 +0000677
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000678 if (retries == 2) /* Not found */
wdenk64f70be2004-09-28 20:34:50 +0000679 return;
680#endif
wdenkc7de8292002-11-19 11:04:11 +0000681
Pavel Herrmannf5b82c02012-10-09 07:04:39 +0000682 ide_input_swap_data(device, (ulong *)&iop, ATA_SECTORWORDS);
wdenkc6097192002-11-03 00:24:07 +0000683
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000684 ident_cpy((unsigned char *) dev_desc->revision, iop.fw_rev,
685 sizeof(dev_desc->revision));
686 ident_cpy((unsigned char *) dev_desc->vendor, iop.model,
687 sizeof(dev_desc->vendor));
688 ident_cpy((unsigned char *) dev_desc->product, iop.serial_no,
689 sizeof(dev_desc->product));
wdenkc3f9d492004-03-14 00:59:59 +0000690#ifdef __LITTLE_ENDIAN
691 /*
Richard Retanubunbcdf1d22008-11-06 14:01:51 -0500692 * firmware revision, model, and serial number have Big Endian Byte
693 * order in Word. Convert all three to little endian.
wdenkc3f9d492004-03-14 00:59:59 +0000694 *
695 * See CF+ and CompactFlash Specification Revision 2.0:
Richard Retanubunbcdf1d22008-11-06 14:01:51 -0500696 * 6.2.1.6: Identify Drive, Table 39 for more details
wdenkc3f9d492004-03-14 00:59:59 +0000697 */
698
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000699 strswab(dev_desc->revision);
700 strswab(dev_desc->vendor);
701 strswab(dev_desc->product);
wdenkc3f9d492004-03-14 00:59:59 +0000702#endif /* __LITTLE_ENDIAN */
wdenkc6097192002-11-03 00:24:07 +0000703
Marek Vasutb18eabf2011-08-20 09:15:13 +0000704 if ((iop.config & 0x0080) == 0x0080)
wdenkc6097192002-11-03 00:24:07 +0000705 dev_desc->removable = 1;
706 else
707 dev_desc->removable = 0;
708
Steven A. Falco36c2d302008-08-15 15:34:10 -0400709#ifdef CONFIG_TUNE_PIO
710 /* Mode 0 - 2 only, are directly determined by word 51. */
Marek Vasutb18eabf2011-08-20 09:15:13 +0000711 pio_mode = iop.tPIO;
Steven A. Falco36c2d302008-08-15 15:34:10 -0400712 if (pio_mode > 2) {
713 printf("WARNING: Invalid PIO (word 51 = %d).\n", pio_mode);
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000714 /* Force it to dead slow, and hope for the best... */
715 pio_mode = 0;
Steven A. Falco36c2d302008-08-15 15:34:10 -0400716 }
717
718 /* Any CompactFlash Storage Card that supports PIO mode 3 or above
719 * shall set bit 1 of word 53 to one and support the fields contained
720 * in words 64 through 70.
721 */
Marek Vasutb18eabf2011-08-20 09:15:13 +0000722 if (iop.field_valid & 0x02) {
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000723 /*
724 * Mode 3 and above are possible. Check in order from slow
Steven A. Falco36c2d302008-08-15 15:34:10 -0400725 * to fast, so we wind up with the highest mode allowed.
726 */
Marek Vasutb18eabf2011-08-20 09:15:13 +0000727 if (iop.eide_pio_modes & 0x01)
Steven A. Falco36c2d302008-08-15 15:34:10 -0400728 pio_mode = 3;
Marek Vasutb18eabf2011-08-20 09:15:13 +0000729 if (iop.eide_pio_modes & 0x02)
Steven A. Falco36c2d302008-08-15 15:34:10 -0400730 pio_mode = 4;
Marek Vasutb18eabf2011-08-20 09:15:13 +0000731 if (ata_id_is_cfa((u16 *)&iop)) {
732 if ((iop.cf_advanced_caps & 0x07) == 0x01)
Steven A. Falco36c2d302008-08-15 15:34:10 -0400733 pio_mode = 5;
Marek Vasutb18eabf2011-08-20 09:15:13 +0000734 if ((iop.cf_advanced_caps & 0x07) == 0x02)
Steven A. Falco36c2d302008-08-15 15:34:10 -0400735 pio_mode = 6;
736 }
737 }
738
739 /* System-specific, depends on bus speeds, etc. */
740 ide_set_piomode(pio_mode);
741#endif /* CONFIG_TUNE_PIO */
742
wdenkc6097192002-11-03 00:24:07 +0000743#if 0
744 /*
745 * Drive PIO mode autoselection
746 */
Marek Vasutb18eabf2011-08-20 09:15:13 +0000747 mode = iop.tPIO;
wdenkc6097192002-11-03 00:24:07 +0000748
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000749 printf("tPIO = 0x%02x = %d\n", mode, mode);
wdenkc6097192002-11-03 00:24:07 +0000750 if (mode > 2) { /* 2 is maximum allowed tPIO value */
751 mode = 2;
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000752 debug("Override tPIO -> 2\n");
wdenkc6097192002-11-03 00:24:07 +0000753 }
Marek Vasutb18eabf2011-08-20 09:15:13 +0000754 if (iop.field_valid & 2) { /* drive implements ATA2? */
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000755 debug("Drive implements ATA2\n");
Marek Vasutb18eabf2011-08-20 09:15:13 +0000756 if (iop.capability & 8) { /* drive supports use_iordy? */
757 cycle_time = iop.eide_pio_iordy;
wdenkc6097192002-11-03 00:24:07 +0000758 } else {
Marek Vasutb18eabf2011-08-20 09:15:13 +0000759 cycle_time = iop.eide_pio;
wdenkc6097192002-11-03 00:24:07 +0000760 }
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000761 debug("cycle time = %d\n", cycle_time);
wdenkc6097192002-11-03 00:24:07 +0000762 mode = 4;
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000763 if (cycle_time > 120)
764 mode = 3; /* 120 ns for PIO mode 4 */
765 if (cycle_time > 180)
766 mode = 2; /* 180 ns for PIO mode 3 */
767 if (cycle_time > 240)
768 mode = 1; /* 240 ns for PIO mode 4 */
769 if (cycle_time > 383)
770 mode = 0; /* 383 ns for PIO mode 4 */
wdenkc6097192002-11-03 00:24:07 +0000771 }
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000772 printf("PIO mode to use: PIO %d\n", mode);
wdenkc6097192002-11-03 00:24:07 +0000773#endif /* 0 */
774
775#ifdef CONFIG_ATAPI
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000776 if (dev_desc->if_type == IF_TYPE_ATAPI) {
wdenkc6097192002-11-03 00:24:07 +0000777 atapi_inquiry(dev_desc);
778 return;
779 }
780#endif /* CONFIG_ATAPI */
781
wdenkc3f9d492004-03-14 00:59:59 +0000782#ifdef __BIG_ENDIAN
wdenkc6097192002-11-03 00:24:07 +0000783 /* swap shorts */
Marek Vasutb18eabf2011-08-20 09:15:13 +0000784 dev_desc->lba = (iop.lba_capacity << 16) | (iop.lba_capacity >> 16);
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000785#else /* ! __BIG_ENDIAN */
wdenkc3f9d492004-03-14 00:59:59 +0000786 /*
787 * do not swap shorts on little endian
788 *
789 * See CF+ and CompactFlash Specification Revision 2.0:
790 * 6.2.1.6: Identfy Drive, Table 39, Word Address 57-58 for details.
791 */
Marek Vasutb18eabf2011-08-20 09:15:13 +0000792 dev_desc->lba = iop.lba_capacity;
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000793#endif /* __BIG_ENDIAN */
wdenkc40b2952004-03-13 23:29:43 +0000794
wdenk42dfe7a2004-03-14 22:25:36 +0000795#ifdef CONFIG_LBA48
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000796 if (iop.command_set_2 & 0x0400) { /* LBA 48 support */
wdenk6e592382004-04-18 17:39:38 +0000797 dev_desc->lba48 = 1;
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000798 dev_desc->lba = (unsigned long long) iop.lba48_capacity[0] |
799 ((unsigned long long) iop.lba48_capacity[1] << 16) |
800 ((unsigned long long) iop.lba48_capacity[2] << 32) |
801 ((unsigned long long) iop.lba48_capacity[3] << 48);
wdenkc40b2952004-03-13 23:29:43 +0000802 } else {
wdenkc40b2952004-03-13 23:29:43 +0000803 dev_desc->lba48 = 0;
804 }
805#endif /* CONFIG_LBA48 */
wdenkc6097192002-11-03 00:24:07 +0000806 /* assuming HD */
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000807 dev_desc->type = DEV_TYPE_HARDDISK;
808 dev_desc->blksz = ATA_BLOCKSIZE;
809 dev_desc->lun = 0; /* just to fill something in... */
wdenkc6097192002-11-03 00:24:07 +0000810
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000811#if 0 /* only used to test the powersaving mode,
812 * if enabled, the drive goes after 5 sec
813 * in standby mode */
814 ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
815 c = ide_wait(device, IDE_TIME_OUT);
816 ide_outb(device, ATA_SECT_CNT, 1);
817 ide_outb(device, ATA_LBA_LOW, 0);
818 ide_outb(device, ATA_LBA_MID, 0);
819 ide_outb(device, ATA_LBA_HIGH, 0);
820 ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
821 ide_outb(device, ATA_COMMAND, 0xe3);
822 udelay(50);
823 c = ide_wait(device, IDE_TIME_OUT); /* can't take over 500 ms */
wdenkc6097192002-11-03 00:24:07 +0000824#endif
825}
826
827
828/* ------------------------------------------------------------------------- */
829
Simon Glassb6458d32012-10-29 05:24:04 +0000830ulong ide_read(int device, ulong blknr, lbaint_t blkcnt, void *buffer)
wdenkc6097192002-11-03 00:24:07 +0000831{
832 ulong n = 0;
833 unsigned char c;
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000834 unsigned char pwrsave = 0; /* power save */
835
wdenk42dfe7a2004-03-14 22:25:36 +0000836#ifdef CONFIG_LBA48
wdenkc40b2952004-03-13 23:29:43 +0000837 unsigned char lba48 = 0;
wdenkc6097192002-11-03 00:24:07 +0000838
Guennadi Liakhovetski413bf582008-04-28 14:36:06 +0200839 if (blknr & 0x0000fffff0000000ULL) {
wdenkc40b2952004-03-13 23:29:43 +0000840 /* more than 28 bits used, use 48bit mode */
841 lba48 = 1;
842 }
843#endif
Simon Glassb6458d32012-10-29 05:24:04 +0000844 debug("ide_read dev %d start %lX, blocks " LBAF " buffer at %lX\n",
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000845 device, blknr, blkcnt, (ulong) buffer);
wdenkc6097192002-11-03 00:24:07 +0000846
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000847 ide_led(DEVICE_LED(device), 1); /* LED on */
wdenkc6097192002-11-03 00:24:07 +0000848
849 /* Select device
850 */
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000851 ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
852 c = ide_wait(device, IDE_TIME_OUT);
wdenkc6097192002-11-03 00:24:07 +0000853
854 if (c & ATA_STAT_BUSY) {
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000855 printf("IDE read: device %d not ready\n", device);
wdenkc6097192002-11-03 00:24:07 +0000856 goto IDE_READ_E;
857 }
858
859 /* first check if the drive is in Powersaving mode, if yes,
860 * increase the timeout value */
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000861 ide_outb(device, ATA_COMMAND, ATA_CMD_CHK_PWR);
862 udelay(50);
wdenkc6097192002-11-03 00:24:07 +0000863
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000864 c = ide_wait(device, IDE_TIME_OUT); /* can't take over 500 ms */
wdenkc6097192002-11-03 00:24:07 +0000865
866 if (c & ATA_STAT_BUSY) {
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000867 printf("IDE read: device %d not ready\n", device);
wdenkc6097192002-11-03 00:24:07 +0000868 goto IDE_READ_E;
869 }
870 if ((c & ATA_STAT_ERR) == ATA_STAT_ERR) {
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000871 printf("No Powersaving mode %X\n", c);
wdenkc6097192002-11-03 00:24:07 +0000872 } else {
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000873 c = ide_inb(device, ATA_SECT_CNT);
874 debug("Powersaving %02X\n", c);
875 if (c == 0)
876 pwrsave = 1;
wdenkc6097192002-11-03 00:24:07 +0000877 }
878
879
880 while (blkcnt-- > 0) {
881
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000882 c = ide_wait(device, IDE_TIME_OUT);
wdenkc6097192002-11-03 00:24:07 +0000883
884 if (c & ATA_STAT_BUSY) {
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000885 printf("IDE read: device %d not ready\n", device);
wdenkc6097192002-11-03 00:24:07 +0000886 break;
887 }
wdenk42dfe7a2004-03-14 22:25:36 +0000888#ifdef CONFIG_LBA48
wdenkc40b2952004-03-13 23:29:43 +0000889 if (lba48) {
890 /* write high bits */
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000891 ide_outb(device, ATA_SECT_CNT, 0);
892 ide_outb(device, ATA_LBA_LOW, (blknr >> 24) & 0xFF);
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200893#ifdef CONFIG_SYS_64BIT_LBA
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000894 ide_outb(device, ATA_LBA_MID, (blknr >> 32) & 0xFF);
895 ide_outb(device, ATA_LBA_HIGH, (blknr >> 40) & 0xFF);
Guennadi Liakhovetski413bf582008-04-28 14:36:06 +0200896#else
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000897 ide_outb(device, ATA_LBA_MID, 0);
898 ide_outb(device, ATA_LBA_HIGH, 0);
Guennadi Liakhovetski413bf582008-04-28 14:36:06 +0200899#endif
wdenkc40b2952004-03-13 23:29:43 +0000900 }
901#endif
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000902 ide_outb(device, ATA_SECT_CNT, 1);
903 ide_outb(device, ATA_LBA_LOW, (blknr >> 0) & 0xFF);
904 ide_outb(device, ATA_LBA_MID, (blknr >> 8) & 0xFF);
905 ide_outb(device, ATA_LBA_HIGH, (blknr >> 16) & 0xFF);
wdenkc40b2952004-03-13 23:29:43 +0000906
wdenk42dfe7a2004-03-14 22:25:36 +0000907#ifdef CONFIG_LBA48
wdenkc40b2952004-03-13 23:29:43 +0000908 if (lba48) {
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000909 ide_outb(device, ATA_DEV_HD,
910 ATA_LBA | ATA_DEVICE(device));
911 ide_outb(device, ATA_COMMAND, ATA_CMD_READ_EXT);
wdenkc40b2952004-03-13 23:29:43 +0000912
913 } else
914#endif
915 {
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000916 ide_outb(device, ATA_DEV_HD, ATA_LBA |
917 ATA_DEVICE(device) | ((blknr >> 24) & 0xF));
918 ide_outb(device, ATA_COMMAND, ATA_CMD_READ);
wdenkc40b2952004-03-13 23:29:43 +0000919 }
wdenkc6097192002-11-03 00:24:07 +0000920
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000921 udelay(50);
wdenkc6097192002-11-03 00:24:07 +0000922
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000923 if (pwrsave) {
924 /* may take up to 4 sec */
925 c = ide_wait(device, IDE_SPIN_UP_TIME_OUT);
926 pwrsave = 0;
wdenkc6097192002-11-03 00:24:07 +0000927 } else {
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000928 /* can't take over 500 ms */
929 c = ide_wait(device, IDE_TIME_OUT);
wdenkc6097192002-11-03 00:24:07 +0000930 }
931
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000932 if ((c & (ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR)) !=
933 ATA_STAT_DRQ) {
Simon Glassb6458d32012-10-29 05:24:04 +0000934 printf("Error (no IRQ) dev %d blk %ld: status %#02x\n",
wdenkc6097192002-11-03 00:24:07 +0000935 device, blknr, c);
936 break;
937 }
938
Pavel Herrmannf5b82c02012-10-09 07:04:39 +0000939 ide_input_data(device, buffer, ATA_SECTORWORDS);
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000940 (void) ide_inb(device, ATA_STATUS); /* clear IRQ */
wdenkc6097192002-11-03 00:24:07 +0000941
942 ++n;
943 ++blknr;
Greg Lopp0b945042007-04-13 08:02:24 +0200944 buffer += ATA_BLOCKSIZE;
wdenkc6097192002-11-03 00:24:07 +0000945 }
946IDE_READ_E:
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000947 ide_led(DEVICE_LED(device), 0); /* LED off */
wdenkc6097192002-11-03 00:24:07 +0000948 return (n);
949}
950
951/* ------------------------------------------------------------------------- */
952
953
Simon Glassb6458d32012-10-29 05:24:04 +0000954ulong ide_write(int device, ulong blknr, lbaint_t blkcnt, const void *buffer)
wdenkc6097192002-11-03 00:24:07 +0000955{
956 ulong n = 0;
957 unsigned char c;
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000958
wdenk42dfe7a2004-03-14 22:25:36 +0000959#ifdef CONFIG_LBA48
wdenkc40b2952004-03-13 23:29:43 +0000960 unsigned char lba48 = 0;
961
Guennadi Liakhovetski413bf582008-04-28 14:36:06 +0200962 if (blknr & 0x0000fffff0000000ULL) {
wdenkc40b2952004-03-13 23:29:43 +0000963 /* more than 28 bits used, use 48bit mode */
964 lba48 = 1;
965 }
966#endif
wdenkc6097192002-11-03 00:24:07 +0000967
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000968 ide_led(DEVICE_LED(device), 1); /* LED on */
wdenkc6097192002-11-03 00:24:07 +0000969
970 /* Select device
971 */
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000972 ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
wdenkc6097192002-11-03 00:24:07 +0000973
974 while (blkcnt-- > 0) {
975
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000976 c = ide_wait(device, IDE_TIME_OUT);
wdenkc6097192002-11-03 00:24:07 +0000977
978 if (c & ATA_STAT_BUSY) {
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000979 printf("IDE read: device %d not ready\n", device);
wdenkc6097192002-11-03 00:24:07 +0000980 goto WR_OUT;
981 }
wdenk42dfe7a2004-03-14 22:25:36 +0000982#ifdef CONFIG_LBA48
wdenkc40b2952004-03-13 23:29:43 +0000983 if (lba48) {
984 /* write high bits */
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000985 ide_outb(device, ATA_SECT_CNT, 0);
986 ide_outb(device, ATA_LBA_LOW, (blknr >> 24) & 0xFF);
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200987#ifdef CONFIG_SYS_64BIT_LBA
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000988 ide_outb(device, ATA_LBA_MID, (blknr >> 32) & 0xFF);
989 ide_outb(device, ATA_LBA_HIGH, (blknr >> 40) & 0xFF);
Guennadi Liakhovetski413bf582008-04-28 14:36:06 +0200990#else
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000991 ide_outb(device, ATA_LBA_MID, 0);
992 ide_outb(device, ATA_LBA_HIGH, 0);
Guennadi Liakhovetski413bf582008-04-28 14:36:06 +0200993#endif
wdenkc40b2952004-03-13 23:29:43 +0000994 }
995#endif
Wolfgang Denk34c202c2011-10-29 09:41:40 +0000996 ide_outb(device, ATA_SECT_CNT, 1);
997 ide_outb(device, ATA_LBA_LOW, (blknr >> 0) & 0xFF);
998 ide_outb(device, ATA_LBA_MID, (blknr >> 8) & 0xFF);
999 ide_outb(device, ATA_LBA_HIGH, (blknr >> 16) & 0xFF);
wdenkc40b2952004-03-13 23:29:43 +00001000
wdenk42dfe7a2004-03-14 22:25:36 +00001001#ifdef CONFIG_LBA48
wdenkc40b2952004-03-13 23:29:43 +00001002 if (lba48) {
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001003 ide_outb(device, ATA_DEV_HD,
1004 ATA_LBA | ATA_DEVICE(device));
1005 ide_outb(device, ATA_COMMAND, ATA_CMD_WRITE_EXT);
wdenkc40b2952004-03-13 23:29:43 +00001006
1007 } else
1008#endif
1009 {
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001010 ide_outb(device, ATA_DEV_HD, ATA_LBA |
1011 ATA_DEVICE(device) | ((blknr >> 24) & 0xF));
1012 ide_outb(device, ATA_COMMAND, ATA_CMD_WRITE);
wdenkc40b2952004-03-13 23:29:43 +00001013 }
wdenkc6097192002-11-03 00:24:07 +00001014
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001015 udelay(50);
wdenkc6097192002-11-03 00:24:07 +00001016
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001017 /* can't take over 500 ms */
1018 c = ide_wait(device, IDE_TIME_OUT);
wdenkc6097192002-11-03 00:24:07 +00001019
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001020 if ((c & (ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR)) !=
1021 ATA_STAT_DRQ) {
Simon Glassb6458d32012-10-29 05:24:04 +00001022 printf("Error (no IRQ) dev %d blk %ld: status %#02x\n",
wdenkc6097192002-11-03 00:24:07 +00001023 device, blknr, c);
1024 goto WR_OUT;
1025 }
1026
Pavel Herrmannf5b82c02012-10-09 07:04:39 +00001027 ide_output_data(device, buffer, ATA_SECTORWORDS);
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001028 c = ide_inb(device, ATA_STATUS); /* clear IRQ */
wdenkc6097192002-11-03 00:24:07 +00001029 ++n;
1030 ++blknr;
Greg Lopp0b945042007-04-13 08:02:24 +02001031 buffer += ATA_BLOCKSIZE;
wdenkc6097192002-11-03 00:24:07 +00001032 }
1033WR_OUT:
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001034 ide_led(DEVICE_LED(device), 0); /* LED off */
wdenkc6097192002-11-03 00:24:07 +00001035 return (n);
1036}
1037
1038/* ------------------------------------------------------------------------- */
1039
1040/*
1041 * copy src to dest, skipping leading and trailing blanks and null
1042 * terminate the string
wdenk7d7ce412004-03-17 01:13:07 +00001043 * "len" is the size of available memory including the terminating '\0'
wdenkc6097192002-11-03 00:24:07 +00001044 */
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001045static void ident_cpy(unsigned char *dst, unsigned char *src,
1046 unsigned int len)
wdenkc6097192002-11-03 00:24:07 +00001047{
wdenk7d7ce412004-03-17 01:13:07 +00001048 unsigned char *end, *last;
wdenkc6097192002-11-03 00:24:07 +00001049
wdenk7d7ce412004-03-17 01:13:07 +00001050 last = dst;
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001051 end = src + len - 1;
wdenk7d7ce412004-03-17 01:13:07 +00001052
1053 /* reserve space for '\0' */
1054 if (len < 2)
1055 goto OUT;
wdenkefa329c2004-03-23 20:18:25 +00001056
wdenk7d7ce412004-03-17 01:13:07 +00001057 /* skip leading white space */
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001058 while ((*src) && (src < end) && (*src == ' '))
wdenk7d7ce412004-03-17 01:13:07 +00001059 ++src;
1060
1061 /* copy string, omitting trailing white space */
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001062 while ((*src) && (src < end)) {
wdenk7d7ce412004-03-17 01:13:07 +00001063 *dst++ = *src;
1064 if (*src++ != ' ')
1065 last = dst;
wdenkc6097192002-11-03 00:24:07 +00001066 }
wdenk7d7ce412004-03-17 01:13:07 +00001067OUT:
1068 *last = '\0';
wdenkc6097192002-11-03 00:24:07 +00001069}
1070
1071/* ------------------------------------------------------------------------- */
1072
1073/*
1074 * Wait until Busy bit is off, or timeout (in ms)
1075 * Return last status
1076 */
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001077static uchar ide_wait(int dev, ulong t)
wdenkc6097192002-11-03 00:24:07 +00001078{
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001079 ulong delay = 10 * t; /* poll every 100 us */
wdenkc6097192002-11-03 00:24:07 +00001080 uchar c;
1081
wdenk2262cfe2002-11-18 00:14:45 +00001082 while ((c = ide_inb(dev, ATA_STATUS)) & ATA_STAT_BUSY) {
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001083 udelay(100);
1084 if (delay-- == 0)
wdenkc6097192002-11-03 00:24:07 +00001085 break;
wdenkc6097192002-11-03 00:24:07 +00001086 }
1087 return (c);
1088}
1089
1090/* ------------------------------------------------------------------------- */
1091
1092#ifdef CONFIG_IDE_RESET
1093extern void ide_set_reset(int idereset);
1094
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001095static void ide_reset(void)
wdenkc6097192002-11-03 00:24:07 +00001096{
wdenkc6097192002-11-03 00:24:07 +00001097 int i;
1098
1099 curr_device = -1;
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001100 for (i = 0; i < CONFIG_SYS_IDE_MAXBUS; ++i)
wdenkc6097192002-11-03 00:24:07 +00001101 ide_bus_ok[i] = 0;
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001102 for (i = 0; i < CONFIG_SYS_IDE_MAXDEVICE; ++i)
wdenkc6097192002-11-03 00:24:07 +00001103 ide_dev_desc[i].type = DEV_TYPE_UNKNOWN;
1104
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001105 ide_set_reset(1); /* assert reset */
wdenkc6097192002-11-03 00:24:07 +00001106
Martin Krausee175eac2008-04-03 13:37:56 +02001107 /* the reset signal shall be asserted for et least 25 us */
1108 udelay(25);
1109
wdenkc6097192002-11-03 00:24:07 +00001110 WATCHDOG_RESET();
1111
wdenkc6097192002-11-03 00:24:07 +00001112 /* de-assert RESET signal */
1113 ide_set_reset(0);
1114
1115 /* wait 250 ms */
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001116 for (i = 0; i < 250; ++i)
1117 udelay(1000);
wdenkc6097192002-11-03 00:24:07 +00001118}
1119
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001120#endif /* CONFIG_IDE_RESET */
wdenkc6097192002-11-03 00:24:07 +00001121
1122/* ------------------------------------------------------------------------- */
1123
Heiko Schocher3887c3f2009-09-23 07:56:08 +02001124#if defined(CONFIG_OF_IDE_FIXUP)
1125int ide_device_present(int dev)
1126{
1127 if (dev >= CONFIG_SYS_IDE_MAXBUS)
1128 return 0;
1129 return (ide_dev_desc[dev].type == DEV_TYPE_UNKNOWN ? 0 : 1);
1130}
1131#endif
wdenkc6097192002-11-03 00:24:07 +00001132/* ------------------------------------------------------------------------- */
1133
1134#ifdef CONFIG_ATAPI
1135/****************************************************************************
1136 * ATAPI Support
1137 */
1138
Pavel Herrmannf5b82c02012-10-09 07:04:39 +00001139void ide_input_data_shorts(int dev, ushort *sect_buf, int shorts)
1140 __attribute__ ((weak, alias("__ide_input_data_shorts")));
1141
1142void ide_output_data_shorts(int dev, ushort *sect_buf, int shorts)
1143 __attribute__ ((weak, alias("__ide_output_data_shorts")));
1144
1145
Albert Aribaudf2a37fc2010-08-08 05:17:05 +05301146#if defined(CONFIG_IDE_SWAP_IO)
wdenkc6097192002-11-03 00:24:07 +00001147/* since ATAPI may use commands with not 4 bytes alligned length
1148 * we have our own transfer functions, 2 bytes alligned */
Pavel Herrmannf5b82c02012-10-09 07:04:39 +00001149void __ide_output_data_shorts(int dev, ushort *sect_buf, int shorts)
wdenkc6097192002-11-03 00:24:07 +00001150{
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001151 ushort *dbuf;
1152 volatile ushort *pbuf;
wdenkc6097192002-11-03 00:24:07 +00001153
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001154 pbuf = (ushort *) (ATA_CURR_BASE(dev) + ATA_DATA_REG);
1155 dbuf = (ushort *) sect_buf;
wdenkdb01a2e2004-04-15 23:14:49 +00001156
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001157 debug("in output data shorts base for read is %lx\n",
1158 (unsigned long) pbuf);
wdenkdb01a2e2004-04-15 23:14:49 +00001159
wdenkc6097192002-11-03 00:24:07 +00001160 while (shorts--) {
wdenk5cf91d62004-04-23 20:32:05 +00001161 EIEIO;
wdenk1a344f22005-02-03 23:00:49 +00001162 *pbuf = *dbuf++;
wdenkc6097192002-11-03 00:24:07 +00001163 }
wdenk1a344f22005-02-03 23:00:49 +00001164}
1165
Pavel Herrmannf5b82c02012-10-09 07:04:39 +00001166void __ide_input_data_shorts(int dev, ushort *sect_buf, int shorts)
wdenk1a344f22005-02-03 23:00:49 +00001167{
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001168 ushort *dbuf;
1169 volatile ushort *pbuf;
wdenk1a344f22005-02-03 23:00:49 +00001170
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001171 pbuf = (ushort *) (ATA_CURR_BASE(dev) + ATA_DATA_REG);
1172 dbuf = (ushort *) sect_buf;
wdenk1a344f22005-02-03 23:00:49 +00001173
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001174 debug("in input data shorts base for read is %lx\n",
1175 (unsigned long) pbuf);
wdenk1a344f22005-02-03 23:00:49 +00001176
1177 while (shorts--) {
1178 EIEIO;
1179 *dbuf++ = *pbuf;
1180 }
wdenkc6097192002-11-03 00:24:07 +00001181}
1182
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001183#else /* ! CONFIG_IDE_SWAP_IO */
Pavel Herrmannf5b82c02012-10-09 07:04:39 +00001184void __ide_output_data_shorts(int dev, ushort *sect_buf, int shorts)
wdenk2262cfe2002-11-18 00:14:45 +00001185{
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001186 outsw(ATA_CURR_BASE(dev) + ATA_DATA_REG, sect_buf, shorts);
wdenk2262cfe2002-11-18 00:14:45 +00001187}
1188
Pavel Herrmannf5b82c02012-10-09 07:04:39 +00001189void __ide_input_data_shorts(int dev, ushort *sect_buf, int shorts)
wdenk2262cfe2002-11-18 00:14:45 +00001190{
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001191 insw(ATA_CURR_BASE(dev) + ATA_DATA_REG, sect_buf, shorts);
wdenk2262cfe2002-11-18 00:14:45 +00001192}
1193
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001194#endif /* CONFIG_IDE_SWAP_IO */
wdenk2262cfe2002-11-18 00:14:45 +00001195
wdenkc6097192002-11-03 00:24:07 +00001196/*
1197 * Wait until (Status & mask) == res, or timeout (in ms)
1198 * Return last status
1199 * This is used since some ATAPI CD ROMs clears their Busy Bit first
1200 * and then they set their DRQ Bit
1201 */
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001202static uchar atapi_wait_mask(int dev, ulong t, uchar mask, uchar res)
wdenkc6097192002-11-03 00:24:07 +00001203{
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001204 ulong delay = 10 * t; /* poll every 100 us */
wdenkc6097192002-11-03 00:24:07 +00001205 uchar c;
1206
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001207 /* prevents to read the status before valid */
1208 c = ide_inb(dev, ATA_DEV_CTL);
1209
wdenk2262cfe2002-11-18 00:14:45 +00001210 while (((c = ide_inb(dev, ATA_STATUS)) & mask) != res) {
wdenkc6097192002-11-03 00:24:07 +00001211 /* break if error occurs (doesn't make sense to wait more) */
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001212 if ((c & ATA_STAT_ERR) == ATA_STAT_ERR)
wdenkc6097192002-11-03 00:24:07 +00001213 break;
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001214 udelay(100);
1215 if (delay-- == 0)
wdenkc6097192002-11-03 00:24:07 +00001216 break;
wdenkc6097192002-11-03 00:24:07 +00001217 }
1218 return (c);
1219}
1220
1221/*
1222 * issue an atapi command
1223 */
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001224unsigned char atapi_issue(int device, unsigned char *ccb, int ccblen,
1225 unsigned char *buffer, int buflen)
wdenkc6097192002-11-03 00:24:07 +00001226{
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001227 unsigned char c, err, mask, res;
wdenkc6097192002-11-03 00:24:07 +00001228 int n;
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001229
1230 ide_led(DEVICE_LED(device), 1); /* LED on */
wdenkc6097192002-11-03 00:24:07 +00001231
1232 /* Select device
1233 */
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001234 mask = ATA_STAT_BUSY | ATA_STAT_DRQ;
wdenkc6097192002-11-03 00:24:07 +00001235 res = 0;
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001236 ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
1237 c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res);
wdenkc6097192002-11-03 00:24:07 +00001238 if ((c & mask) != res) {
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001239 printf("ATAPI_ISSUE: device %d not ready status %X\n", device,
1240 c);
1241 err = 0xFF;
wdenkc6097192002-11-03 00:24:07 +00001242 goto AI_OUT;
1243 }
1244 /* write taskfile */
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001245 ide_outb(device, ATA_ERROR_REG, 0); /* no DMA, no overlaped */
1246 ide_outb(device, ATA_SECT_CNT, 0);
1247 ide_outb(device, ATA_SECT_NUM, 0);
1248 ide_outb(device, ATA_CYL_LOW, (unsigned char) (buflen & 0xFF));
1249 ide_outb(device, ATA_CYL_HIGH,
1250 (unsigned char) ((buflen >> 8) & 0xFF));
1251 ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
wdenkc6097192002-11-03 00:24:07 +00001252
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001253 ide_outb(device, ATA_COMMAND, ATAPI_CMD_PACKET);
1254 udelay(50);
wdenkc6097192002-11-03 00:24:07 +00001255
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001256 mask = ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR;
wdenkc6097192002-11-03 00:24:07 +00001257 res = ATA_STAT_DRQ;
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001258 c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res);
wdenkc6097192002-11-03 00:24:07 +00001259
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001260 if ((c & mask) != res) { /* DRQ must be 1, BSY 0 */
1261 printf("ATAPI_ISSUE: Error (no IRQ) before sending ccb dev %d status 0x%02x\n",
1262 device, c);
1263 err = 0xFF;
wdenkc6097192002-11-03 00:24:07 +00001264 goto AI_OUT;
1265 }
1266
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001267 /* write command block */
Pavel Herrmannf5b82c02012-10-09 07:04:39 +00001268 ide_output_data_shorts(device, (unsigned short *) ccb, ccblen / 2);
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001269
Wolfgang Denk53677ef2008-05-20 16:00:29 +02001270 /* ATAPI Command written wait for completition */
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001271 udelay(5000); /* device must set bsy */
wdenkc6097192002-11-03 00:24:07 +00001272
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001273 mask = ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR;
1274 /*
1275 * if no data wait for DRQ = 0 BSY = 0
1276 * if data wait for DRQ = 1 BSY = 0
1277 */
1278 res = 0;
1279 if (buflen)
wdenkc6097192002-11-03 00:24:07 +00001280 res = ATA_STAT_DRQ;
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001281 c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res);
1282 if ((c & mask) != res) {
wdenkc6097192002-11-03 00:24:07 +00001283 if (c & ATA_STAT_ERR) {
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001284 err = (ide_inb(device, ATA_ERROR_REG)) >> 4;
1285 debug("atapi_issue 1 returned sense key %X status %02X\n",
1286 err, c);
wdenkc6097192002-11-03 00:24:07 +00001287 } else {
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001288 printf("ATAPI_ISSUE: (no DRQ) after sending ccb (%x) status 0x%02x\n",
1289 ccb[0], c);
1290 err = 0xFF;
wdenkc6097192002-11-03 00:24:07 +00001291 }
1292 goto AI_OUT;
1293 }
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001294 n = ide_inb(device, ATA_CYL_HIGH);
1295 n <<= 8;
1296 n += ide_inb(device, ATA_CYL_LOW);
1297 if (n > buflen) {
1298 printf("ERROR, transfer bytes %d requested only %d\n", n,
1299 buflen);
1300 err = 0xff;
wdenkc6097192002-11-03 00:24:07 +00001301 goto AI_OUT;
1302 }
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001303 if ((n == 0) && (buflen < 0)) {
1304 printf("ERROR, transfer bytes %d requested %d\n", n, buflen);
1305 err = 0xff;
wdenkc6097192002-11-03 00:24:07 +00001306 goto AI_OUT;
1307 }
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001308 if (n != buflen) {
1309 debug("WARNING, transfer bytes %d not equal with requested %d\n",
1310 n, buflen);
wdenkc6097192002-11-03 00:24:07 +00001311 }
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001312 if (n != 0) { /* data transfer */
1313 debug("ATAPI_ISSUE: %d Bytes to transfer\n", n);
1314 /* we transfer shorts */
1315 n >>= 1;
wdenkc6097192002-11-03 00:24:07 +00001316 /* ok now decide if it is an in or output */
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001317 if ((ide_inb(device, ATA_SECT_CNT) & 0x02) == 0) {
1318 debug("Write to device\n");
Pavel Herrmannf5b82c02012-10-09 07:04:39 +00001319 ide_output_data_shorts(device,
1320 (unsigned short *) buffer, n);
wdenkc6097192002-11-03 00:24:07 +00001321 } else {
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001322 debug("Read from device @ %p shorts %d\n", buffer, n);
Pavel Herrmannf5b82c02012-10-09 07:04:39 +00001323 ide_input_data_shorts(device,
1324 (unsigned short *) buffer, n);
wdenkc6097192002-11-03 00:24:07 +00001325 }
1326 }
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001327 udelay(5000); /* seems that some CD ROMs need this... */
1328 mask = ATA_STAT_BUSY | ATA_STAT_ERR;
1329 res = 0;
1330 c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res);
wdenkc6097192002-11-03 00:24:07 +00001331 if ((c & ATA_STAT_ERR) == ATA_STAT_ERR) {
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001332 err = (ide_inb(device, ATA_ERROR_REG) >> 4);
1333 debug("atapi_issue 2 returned sense key %X status %X\n", err,
1334 c);
wdenkc6097192002-11-03 00:24:07 +00001335 } else {
1336 err = 0;
1337 }
1338AI_OUT:
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001339 ide_led(DEVICE_LED(device), 0); /* LED off */
wdenkc6097192002-11-03 00:24:07 +00001340 return (err);
1341}
1342
1343/*
1344 * sending the command to atapi_issue. If an status other than good
1345 * returns, an request_sense will be issued
1346 */
1347
Wolfgang Denk53677ef2008-05-20 16:00:29 +02001348#define ATAPI_DRIVE_NOT_READY 100
wdenkc6097192002-11-03 00:24:07 +00001349#define ATAPI_UNIT_ATTN 10
1350
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001351unsigned char atapi_issue_autoreq(int device,
1352 unsigned char *ccb,
1353 int ccblen,
1354 unsigned char *buffer, int buflen)
wdenkc6097192002-11-03 00:24:07 +00001355{
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001356 unsigned char sense_data[18], sense_ccb[12];
1357 unsigned char res, key, asc, ascq;
1358 int notready, unitattn;
wdenkc6097192002-11-03 00:24:07 +00001359
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001360 unitattn = ATAPI_UNIT_ATTN;
1361 notready = ATAPI_DRIVE_NOT_READY;
wdenkc6097192002-11-03 00:24:07 +00001362
1363retry:
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001364 res = atapi_issue(device, ccb, ccblen, buffer, buflen);
1365 if (res == 0)
1366 return 0; /* Ok */
wdenkc6097192002-11-03 00:24:07 +00001367
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001368 if (res == 0xFF)
1369 return 0xFF; /* error */
wdenkc6097192002-11-03 00:24:07 +00001370
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001371 debug("(auto_req)atapi_issue returned sense key %X\n", res);
wdenkc6097192002-11-03 00:24:07 +00001372
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001373 memset(sense_ccb, 0, sizeof(sense_ccb));
1374 memset(sense_data, 0, sizeof(sense_data));
1375 sense_ccb[0] = ATAPI_CMD_REQ_SENSE;
1376 sense_ccb[4] = 18; /* allocation Length */
wdenkc6097192002-11-03 00:24:07 +00001377
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001378 res = atapi_issue(device, sense_ccb, 12, sense_data, 18);
1379 key = (sense_data[2] & 0xF);
1380 asc = (sense_data[12]);
1381 ascq = (sense_data[13]);
wdenkc6097192002-11-03 00:24:07 +00001382
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001383 debug("ATAPI_CMD_REQ_SENSE returned %x\n", res);
1384 debug(" Sense page: %02X key %02X ASC %02X ASCQ %02X\n",
1385 sense_data[0], key, asc, ascq);
wdenkc6097192002-11-03 00:24:07 +00001386
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001387 if ((key == 0))
1388 return 0; /* ok device ready */
wdenkc6097192002-11-03 00:24:07 +00001389
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001390 if ((key == 6) || (asc == 0x29) || (asc == 0x28)) { /* Unit Attention */
1391 if (unitattn-- > 0) {
1392 udelay(200 * 1000);
wdenkc6097192002-11-03 00:24:07 +00001393 goto retry;
1394 }
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001395 printf("Unit Attention, tried %d\n", ATAPI_UNIT_ATTN);
wdenkc6097192002-11-03 00:24:07 +00001396 goto error;
1397 }
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001398 if ((asc == 0x4) && (ascq == 0x1)) {
1399 /* not ready, but will be ready soon */
1400 if (notready-- > 0) {
1401 udelay(200 * 1000);
wdenkc6097192002-11-03 00:24:07 +00001402 goto retry;
1403 }
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001404 printf("Drive not ready, tried %d times\n",
1405 ATAPI_DRIVE_NOT_READY);
wdenkc6097192002-11-03 00:24:07 +00001406 goto error;
1407 }
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001408 if (asc == 0x3a) {
1409 debug("Media not present\n");
wdenkc6097192002-11-03 00:24:07 +00001410 goto error;
1411 }
wdenkc7de8292002-11-19 11:04:11 +00001412
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001413 printf("ERROR: Unknown Sense key %02X ASC %02X ASCQ %02X\n", key, asc,
1414 ascq);
wdenkc6097192002-11-03 00:24:07 +00001415error:
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001416 debug("ERROR Sense key %02X ASC %02X ASCQ %02X\n", key, asc, ascq);
wdenkc6097192002-11-03 00:24:07 +00001417 return (0xFF);
1418}
1419
1420
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001421static void atapi_inquiry(block_dev_desc_t *dev_desc)
wdenkc6097192002-11-03 00:24:07 +00001422{
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001423 unsigned char ccb[12]; /* Command descriptor block */
1424 unsigned char iobuf[64]; /* temp buf */
wdenkc6097192002-11-03 00:24:07 +00001425 unsigned char c;
1426 int device;
1427
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001428 device = dev_desc->dev;
1429 dev_desc->type = DEV_TYPE_UNKNOWN; /* not yet valid */
1430 dev_desc->block_read = atapi_read;
wdenkc6097192002-11-03 00:24:07 +00001431
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001432 memset(ccb, 0, sizeof(ccb));
1433 memset(iobuf, 0, sizeof(iobuf));
wdenkc6097192002-11-03 00:24:07 +00001434
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001435 ccb[0] = ATAPI_CMD_INQUIRY;
1436 ccb[4] = 40; /* allocation Legnth */
1437 c = atapi_issue_autoreq(device, ccb, 12, (unsigned char *) iobuf, 40);
wdenkc6097192002-11-03 00:24:07 +00001438
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001439 debug("ATAPI_CMD_INQUIRY returned %x\n", c);
1440 if (c != 0)
wdenkc6097192002-11-03 00:24:07 +00001441 return;
1442
1443 /* copy device ident strings */
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001444 ident_cpy((unsigned char *) dev_desc->vendor, &iobuf[8], 8);
1445 ident_cpy((unsigned char *) dev_desc->product, &iobuf[16], 16);
1446 ident_cpy((unsigned char *) dev_desc->revision, &iobuf[32], 5);
wdenkc6097192002-11-03 00:24:07 +00001447
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001448 dev_desc->lun = 0;
1449 dev_desc->lba = 0;
1450 dev_desc->blksz = 0;
1451 dev_desc->type = iobuf[0] & 0x1f;
wdenkc6097192002-11-03 00:24:07 +00001452
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001453 if ((iobuf[1] & 0x80) == 0x80)
wdenkc6097192002-11-03 00:24:07 +00001454 dev_desc->removable = 1;
1455 else
1456 dev_desc->removable = 0;
1457
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001458 memset(ccb, 0, sizeof(ccb));
1459 memset(iobuf, 0, sizeof(iobuf));
1460 ccb[0] = ATAPI_CMD_START_STOP;
1461 ccb[4] = 0x03; /* start */
wdenkc6097192002-11-03 00:24:07 +00001462
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001463 c = atapi_issue_autoreq(device, ccb, 12, (unsigned char *) iobuf, 0);
wdenkc6097192002-11-03 00:24:07 +00001464
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001465 debug("ATAPI_CMD_START_STOP returned %x\n", c);
1466 if (c != 0)
wdenkc6097192002-11-03 00:24:07 +00001467 return;
1468
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001469 memset(ccb, 0, sizeof(ccb));
1470 memset(iobuf, 0, sizeof(iobuf));
1471 c = atapi_issue_autoreq(device, ccb, 12, (unsigned char *) iobuf, 0);
wdenkc6097192002-11-03 00:24:07 +00001472
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001473 debug("ATAPI_CMD_UNIT_TEST_READY returned %x\n", c);
1474 if (c != 0)
wdenkc6097192002-11-03 00:24:07 +00001475 return;
1476
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001477 memset(ccb, 0, sizeof(ccb));
1478 memset(iobuf, 0, sizeof(iobuf));
1479 ccb[0] = ATAPI_CMD_READ_CAP;
1480 c = atapi_issue_autoreq(device, ccb, 12, (unsigned char *) iobuf, 8);
1481 debug("ATAPI_CMD_READ_CAP returned %x\n", c);
1482 if (c != 0)
wdenkc6097192002-11-03 00:24:07 +00001483 return;
1484
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001485 debug("Read Cap: LBA %02X%02X%02X%02X blksize %02X%02X%02X%02X\n",
1486 iobuf[0], iobuf[1], iobuf[2], iobuf[3],
1487 iobuf[4], iobuf[5], iobuf[6], iobuf[7]);
wdenkc6097192002-11-03 00:24:07 +00001488
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001489 dev_desc->lba = ((unsigned long) iobuf[0] << 24) +
1490 ((unsigned long) iobuf[1] << 16) +
1491 ((unsigned long) iobuf[2] << 8) + ((unsigned long) iobuf[3]);
1492 dev_desc->blksz = ((unsigned long) iobuf[4] << 24) +
1493 ((unsigned long) iobuf[5] << 16) +
1494 ((unsigned long) iobuf[6] << 8) + ((unsigned long) iobuf[7]);
wdenk42dfe7a2004-03-14 22:25:36 +00001495#ifdef CONFIG_LBA48
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001496 /* ATAPI devices cannot use 48bit addressing (ATA/ATAPI v7) */
1497 dev_desc->lba48 = 0;
wdenk42dfe7a2004-03-14 22:25:36 +00001498#endif
wdenkc6097192002-11-03 00:24:07 +00001499 return;
1500}
1501
1502
1503/*
1504 * atapi_read:
1505 * we transfer only one block per command, since the multiple DRQ per
1506 * command is not yet implemented
1507 */
1508#define ATAPI_READ_MAX_BYTES 2048 /* we read max 2kbytes */
1509#define ATAPI_READ_BLOCK_SIZE 2048 /* assuming CD part */
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001510#define ATAPI_READ_MAX_BLOCK (ATAPI_READ_MAX_BYTES/ATAPI_READ_BLOCK_SIZE)
wdenkc6097192002-11-03 00:24:07 +00001511
Simon Glassb6458d32012-10-29 05:24:04 +00001512ulong atapi_read(int device, ulong blknr, lbaint_t blkcnt, void *buffer)
wdenkc6097192002-11-03 00:24:07 +00001513{
1514 ulong n = 0;
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001515 unsigned char ccb[12]; /* Command descriptor block */
wdenkc6097192002-11-03 00:24:07 +00001516 ulong cnt;
1517
Simon Glassb6458d32012-10-29 05:24:04 +00001518 debug("atapi_read dev %d start %lX, blocks " LBAF " buffer at %lX\n",
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001519 device, blknr, blkcnt, (ulong) buffer);
wdenkc6097192002-11-03 00:24:07 +00001520
1521 do {
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001522 if (blkcnt > ATAPI_READ_MAX_BLOCK)
1523 cnt = ATAPI_READ_MAX_BLOCK;
1524 else
1525 cnt = blkcnt;
wdenkc6097192002-11-03 00:24:07 +00001526
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001527 ccb[0] = ATAPI_CMD_READ_12;
1528 ccb[1] = 0; /* reserved */
1529 ccb[2] = (unsigned char) (blknr >> 24) & 0xFF; /* MSB Block */
1530 ccb[3] = (unsigned char) (blknr >> 16) & 0xFF; /* */
1531 ccb[4] = (unsigned char) (blknr >> 8) & 0xFF;
1532 ccb[5] = (unsigned char) blknr & 0xFF; /* LSB Block */
1533 ccb[6] = (unsigned char) (cnt >> 24) & 0xFF; /* MSB Block cnt */
1534 ccb[7] = (unsigned char) (cnt >> 16) & 0xFF;
1535 ccb[8] = (unsigned char) (cnt >> 8) & 0xFF;
1536 ccb[9] = (unsigned char) cnt & 0xFF; /* LSB Block */
1537 ccb[10] = 0; /* reserved */
1538 ccb[11] = 0; /* reserved */
1539
1540 if (atapi_issue_autoreq(device, ccb, 12,
1541 (unsigned char *) buffer,
1542 cnt * ATAPI_READ_BLOCK_SIZE)
1543 == 0xFF) {
wdenkc6097192002-11-03 00:24:07 +00001544 return (n);
1545 }
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001546 n += cnt;
1547 blkcnt -= cnt;
1548 blknr += cnt;
1549 buffer += (cnt * ATAPI_READ_BLOCK_SIZE);
wdenkc6097192002-11-03 00:24:07 +00001550 } while (blkcnt > 0);
1551 return (n);
1552}
1553
1554/* ------------------------------------------------------------------------- */
1555
1556#endif /* CONFIG_ATAPI */
1557
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001558U_BOOT_CMD(ide, 5, 1, do_ide,
1559 "IDE sub-system",
1560 "reset - reset IDE controller\n"
1561 "ide info - show available IDE devices\n"
1562 "ide device [dev] - show or set current device\n"
1563 "ide part [dev] - print partition table of one or all IDE devices\n"
1564 "ide read addr blk# cnt\n"
1565 "ide write addr blk# cnt - read/write `cnt'"
1566 " blocks starting at block `blk#'\n"
1567 " to/from memory address `addr'");
wdenk8bde7f72003-06-27 21:31:46 +00001568
Wolfgang Denk34c202c2011-10-29 09:41:40 +00001569U_BOOT_CMD(diskboot, 3, 1, do_diskboot,
1570 "boot from IDE device", "loadAddr dev:part");