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Commit | Line | Data |
---|---|---|
c609719b | 1 | /* |
34c202c7 | 2 | * (C) Copyright 2000-2011 |
c609719b WD |
3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
4 | * | |
1a459660 | 5 | * SPDX-License-Identifier: GPL-2.0+ |
c609719b WD |
6 | */ |
7 | ||
8 | /* | |
9 | * IDE support | |
10 | */ | |
113bfe48 | 11 | |
c609719b WD |
12 | #include <common.h> |
13 | #include <config.h> | |
14 | #include <watchdog.h> | |
15 | #include <command.h> | |
16 | #include <image.h> | |
17 | #include <asm/byteorder.h> | |
f98984cb | 18 | #include <asm/io.h> |
735dd97b | 19 | |
c609719b WD |
20 | #if defined(CONFIG_IDE_8xx_DIRECT) || defined(CONFIG_IDE_PCMCIA) |
21 | # include <pcmcia.h> | |
22 | #endif | |
735dd97b | 23 | |
c609719b WD |
24 | #include <ide.h> |
25 | #include <ata.h> | |
735dd97b | 26 | |
c609719b WD |
27 | #ifdef CONFIG_STATUS_LED |
28 | # include <status_led.h> | |
29 | #endif | |
735dd97b | 30 | |
5cf91d6b WD |
31 | #ifdef __PPC__ |
32 | # define EIEIO __asm__ volatile ("eieio") | |
1a344f29 | 33 | # define SYNC __asm__ volatile ("sync") |
5cf91d6b WD |
34 | #else |
35 | # define EIEIO /* nothing */ | |
1a344f29 | 36 | # define SYNC /* nothing */ |
c609719b WD |
37 | #endif |
38 | ||
c609719b WD |
39 | /* ------------------------------------------------------------------------- */ |
40 | ||
41 | /* Current I/O Device */ | |
42 | static int curr_device = -1; | |
43 | ||
44 | /* Current offset for IDE0 / IDE1 bus access */ | |
6d0f6bcf JCPV |
45 | ulong ide_bus_offset[CONFIG_SYS_IDE_MAXBUS] = { |
46 | #if defined(CONFIG_SYS_ATA_IDE0_OFFSET) | |
47 | CONFIG_SYS_ATA_IDE0_OFFSET, | |
c609719b | 48 | #endif |
6d0f6bcf JCPV |
49 | #if defined(CONFIG_SYS_ATA_IDE1_OFFSET) && (CONFIG_SYS_IDE_MAXBUS > 1) |
50 | CONFIG_SYS_ATA_IDE1_OFFSET, | |
c609719b WD |
51 | #endif |
52 | }; | |
53 | ||
6d0f6bcf | 54 | static int ide_bus_ok[CONFIG_SYS_IDE_MAXBUS]; |
c609719b | 55 | |
4101f687 | 56 | struct blk_desc ide_dev_desc[CONFIG_SYS_IDE_MAXDEVICE]; |
c609719b WD |
57 | /* ------------------------------------------------------------------------- */ |
58 | ||
c609719b WD |
59 | #ifdef CONFIG_IDE_RESET |
60 | static void ide_reset (void); | |
61 | #else | |
62 | #define ide_reset() /* dummy */ | |
63 | #endif | |
64 | ||
4101f687 | 65 | static void ide_ident(struct blk_desc *dev_desc); |
c609719b WD |
66 | static uchar ide_wait (int dev, ulong t); |
67 | ||
68 | #define IDE_TIME_OUT 2000 /* 2 sec timeout */ | |
69 | ||
70 | #define ATAPI_TIME_OUT 7000 /* 7 sec timeout (5 sec seems to work...) */ | |
71 | ||
72 | #define IDE_SPIN_UP_TIME_OUT 5000 /* 5 sec spin-up timeout */ | |
73 | ||
c609719b WD |
74 | static void ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len); |
75 | ||
6d0f6bcf JCPV |
76 | #ifndef CONFIG_SYS_ATA_PORT_ADDR |
77 | #define CONFIG_SYS_ATA_PORT_ADDR(port) (port) | |
566a494f | 78 | #endif |
c609719b WD |
79 | |
80 | #ifdef CONFIG_ATAPI | |
4101f687 SG |
81 | static void atapi_inquiry(struct blk_desc *dev_desc); |
82 | static ulong atapi_read(struct blk_desc *block_dev, lbaint_t blknr, | |
7c4213f6 | 83 | lbaint_t blkcnt, void *buffer); |
c609719b WD |
84 | #endif |
85 | ||
86 | ||
c609719b WD |
87 | /* ------------------------------------------------------------------------- */ |
88 | ||
34c202c7 | 89 | int do_ide(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]) |
c609719b | 90 | { |
34c202c7 WD |
91 | int rcode = 0; |
92 | ||
93 | switch (argc) { | |
94 | case 0: | |
95 | case 1: | |
4c12eeb8 | 96 | return CMD_RET_USAGE; |
34c202c7 WD |
97 | case 2: |
98 | if (strncmp(argv[1], "res", 3) == 0) { | |
99 | puts("\nReset IDE" | |
c609719b | 100 | #ifdef CONFIG_IDE_8xx_DIRECT |
34c202c7 | 101 | " on PCMCIA " PCMCIA_SLOT_MSG |
c609719b | 102 | #endif |
34c202c7 | 103 | ": "); |
c609719b | 104 | |
34c202c7 WD |
105 | ide_init(); |
106 | return 0; | |
107 | } else if (strncmp(argv[1], "inf", 3) == 0) { | |
108 | int i; | |
c609719b | 109 | |
34c202c7 | 110 | putc('\n'); |
c609719b | 111 | |
34c202c7 WD |
112 | for (i = 0; i < CONFIG_SYS_IDE_MAXDEVICE; ++i) { |
113 | if (ide_dev_desc[i].type == DEV_TYPE_UNKNOWN) | |
114 | continue; /* list only known devices */ | |
115 | printf("IDE device %d: ", i); | |
116 | dev_print(&ide_dev_desc[i]); | |
117 | } | |
118 | return 0; | |
c609719b | 119 | |
34c202c7 WD |
120 | } else if (strncmp(argv[1], "dev", 3) == 0) { |
121 | if ((curr_device < 0) | |
122 | || (curr_device >= CONFIG_SYS_IDE_MAXDEVICE)) { | |
123 | puts("\nno IDE devices available\n"); | |
124 | return 1; | |
c609719b | 125 | } |
34c202c7 WD |
126 | printf("\nIDE device %d: ", curr_device); |
127 | dev_print(&ide_dev_desc[curr_device]); | |
128 | return 0; | |
129 | } else if (strncmp(argv[1], "part", 4) == 0) { | |
130 | int dev, ok; | |
131 | ||
132 | for (ok = 0, dev = 0; | |
133 | dev < CONFIG_SYS_IDE_MAXDEVICE; | |
134 | ++dev) { | |
135 | if (ide_dev_desc[dev].part_type != | |
136 | PART_TYPE_UNKNOWN) { | |
137 | ++ok; | |
138 | if (dev) | |
139 | putc('\n'); | |
140 | print_part(&ide_dev_desc[dev]); | |
141 | } | |
142 | } | |
143 | if (!ok) { | |
144 | puts("\nno IDE devices available\n"); | |
145 | rcode++; | |
146 | } | |
147 | return rcode; | |
c609719b | 148 | } |
4c12eeb8 | 149 | return CMD_RET_USAGE; |
34c202c7 WD |
150 | case 3: |
151 | if (strncmp(argv[1], "dev", 3) == 0) { | |
152 | int dev = (int) simple_strtoul(argv[2], NULL, 10); | |
c609719b | 153 | |
34c202c7 WD |
154 | printf("\nIDE device %d: ", dev); |
155 | if (dev >= CONFIG_SYS_IDE_MAXDEVICE) { | |
156 | puts("unknown device\n"); | |
157 | return 1; | |
158 | } | |
159 | dev_print(&ide_dev_desc[dev]); | |
160 | /*ide_print (dev); */ | |
c609719b | 161 | |
34c202c7 WD |
162 | if (ide_dev_desc[dev].type == DEV_TYPE_UNKNOWN) |
163 | return 1; | |
c609719b | 164 | |
34c202c7 | 165 | curr_device = dev; |
c609719b | 166 | |
34c202c7 WD |
167 | puts("... is now current device\n"); |
168 | ||
169 | return 0; | |
170 | } else if (strncmp(argv[1], "part", 4) == 0) { | |
171 | int dev = (int) simple_strtoul(argv[2], NULL, 10); | |
c609719b | 172 | |
34c202c7 | 173 | if (ide_dev_desc[dev].part_type != PART_TYPE_UNKNOWN) { |
c609719b | 174 | print_part(&ide_dev_desc[dev]); |
34c202c7 WD |
175 | } else { |
176 | printf("\nIDE device %d not available\n", | |
177 | dev); | |
178 | rcode = 1; | |
179 | } | |
180 | return rcode; | |
c609719b | 181 | } |
c609719b | 182 | |
4c12eeb8 | 183 | return CMD_RET_USAGE; |
34c202c7 WD |
184 | default: |
185 | /* at least 4 args */ | |
c609719b | 186 | |
34c202c7 WD |
187 | if (strcmp(argv[1], "read") == 0) { |
188 | ulong addr = simple_strtoul(argv[2], NULL, 16); | |
189 | ulong cnt = simple_strtoul(argv[4], NULL, 16); | |
4101f687 | 190 | struct blk_desc *dev_desc; |
34c202c7 | 191 | ulong n; |
c609719b | 192 | |
6d0f6bcf | 193 | #ifdef CONFIG_SYS_64BIT_LBA |
34c202c7 | 194 | lbaint_t blk = simple_strtoull(argv[3], NULL, 16); |
c609719b | 195 | |
34c202c7 WD |
196 | printf("\nIDE read: device %d block # %lld, count %ld ... ", |
197 | curr_device, blk, cnt); | |
42dfe7a1 | 198 | #else |
34c202c7 WD |
199 | lbaint_t blk = simple_strtoul(argv[3], NULL, 16); |
200 | ||
201 | printf("\nIDE read: device %d block # %ld, count %ld ... ", | |
202 | curr_device, blk, cnt); | |
203 | #endif | |
204 | ||
7c4213f6 SW |
205 | dev_desc = &ide_dev_desc[curr_device]; |
206 | n = dev_desc->block_read(dev_desc, blk, cnt, | |
207 | (ulong *)addr); | |
34c202c7 WD |
208 | /* flush cache after read */ |
209 | flush_cache(addr, | |
210 | cnt * ide_dev_desc[curr_device].blksz); | |
211 | ||
212 | printf("%ld blocks read: %s\n", | |
213 | n, (n == cnt) ? "OK" : "ERROR"); | |
214 | if (n == cnt) | |
215 | return 0; | |
216 | else | |
217 | return 1; | |
218 | } else if (strcmp(argv[1], "write") == 0) { | |
219 | ulong addr = simple_strtoul(argv[2], NULL, 16); | |
220 | ulong cnt = simple_strtoul(argv[4], NULL, 16); | |
221 | ulong n; | |
c609719b | 222 | |
6d0f6bcf | 223 | #ifdef CONFIG_SYS_64BIT_LBA |
34c202c7 | 224 | lbaint_t blk = simple_strtoull(argv[3], NULL, 16); |
c609719b | 225 | |
34c202c7 WD |
226 | printf("\nIDE write: device %d block # %lld, count %ld ... ", |
227 | curr_device, blk, cnt); | |
42dfe7a1 | 228 | #else |
34c202c7 | 229 | lbaint_t blk = simple_strtoul(argv[3], NULL, 16); |
42dfe7a1 | 230 | |
34c202c7 WD |
231 | printf("\nIDE write: device %d block # %ld, count %ld ... ", |
232 | curr_device, blk, cnt); | |
42dfe7a1 | 233 | #endif |
7c4213f6 SW |
234 | n = ide_write(&ide_dev_desc[curr_device], blk, cnt, |
235 | (ulong *)addr); | |
c609719b | 236 | |
34c202c7 WD |
237 | printf("%ld blocks written: %s\n", |
238 | n, (n == cnt) ? "OK" : "ERROR"); | |
239 | if (n == cnt) | |
240 | return 0; | |
241 | else | |
242 | return 1; | |
243 | } else { | |
4c12eeb8 | 244 | return CMD_RET_USAGE; |
34c202c7 | 245 | } |
c609719b | 246 | |
34c202c7 | 247 | return rcode; |
c609719b | 248 | } |
c609719b WD |
249 | } |
250 | ||
34c202c7 | 251 | int do_diskboot(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]) |
c609719b | 252 | { |
7405a133 | 253 | return common_diskboot(cmdtp, "ide", argc, argv); |
c609719b WD |
254 | } |
255 | ||
256 | /* ------------------------------------------------------------------------- */ | |
257 | ||
288afdc9 | 258 | __weak void ide_led(uchar led, uchar status) |
19be2ea2 PH |
259 | { |
260 | #if defined(CONFIG_IDE_LED) && defined(PER8_BASE) /* required by LED_PORT */ | |
261 | static uchar led_buffer; /* Buffer for current LED status */ | |
262 | ||
263 | uchar *led_port = LED_PORT; | |
264 | ||
265 | if (status) /* switch LED on */ | |
266 | led_buffer |= led; | |
267 | else /* switch LED off */ | |
268 | led_buffer &= ~led; | |
269 | ||
270 | *led_port = led_buffer; | |
271 | #endif | |
272 | } | |
273 | ||
19be2ea2 PH |
274 | #ifndef CONFIG_IDE_LED /* define LED macros, they are not used anyways */ |
275 | # define DEVICE_LED(x) 0 | |
276 | # define LED_IDE1 1 | |
277 | # define LED_IDE2 2 | |
278 | #endif | |
279 | ||
280 | /* ------------------------------------------------------------------------- */ | |
281 | ||
288afdc9 | 282 | __weak void ide_outb(int dev, int port, unsigned char val) |
f2302d44 | 283 | { |
34c202c7 WD |
284 | debug("ide_outb (dev= %d, port= 0x%x, val= 0x%02x) : @ 0x%08lx\n", |
285 | dev, port, val, | |
286 | (ATA_CURR_BASE(dev) + CONFIG_SYS_ATA_PORT_ADDR(port))); | |
0abddf82 ML |
287 | |
288 | #if defined(CONFIG_IDE_AHB) | |
289 | if (port) { | |
290 | /* write command */ | |
291 | ide_write_register(dev, port, val); | |
292 | } else { | |
293 | /* write data */ | |
294 | outb(val, (ATA_CURR_BASE(dev))); | |
295 | } | |
296 | #else | |
34c202c7 | 297 | outb(val, (ATA_CURR_BASE(dev) + CONFIG_SYS_ATA_PORT_ADDR(port))); |
0abddf82 | 298 | #endif |
f2302d44 | 299 | } |
0abddf82 | 300 | |
288afdc9 | 301 | __weak unsigned char ide_inb(int dev, int port) |
f2302d44 SR |
302 | { |
303 | uchar val; | |
0abddf82 ML |
304 | |
305 | #if defined(CONFIG_IDE_AHB) | |
306 | val = ide_read_register(dev, port); | |
307 | #else | |
34c202c7 | 308 | val = inb((ATA_CURR_BASE(dev) + CONFIG_SYS_ATA_PORT_ADDR(port))); |
0abddf82 ML |
309 | #endif |
310 | ||
34c202c7 WD |
311 | debug("ide_inb (dev= %d, port= 0x%x) : @ 0x%08lx -> 0x%02x\n", |
312 | dev, port, | |
313 | (ATA_CURR_BASE(dev) + CONFIG_SYS_ATA_PORT_ADDR(port)), val); | |
f2302d44 SR |
314 | return val; |
315 | } | |
34c202c7 | 316 | |
34c202c7 | 317 | void ide_init(void) |
c609719b | 318 | { |
c609719b WD |
319 | unsigned char c; |
320 | int i, bus; | |
34c202c7 | 321 | |
9fd5e31f | 322 | #ifdef CONFIG_IDE_8xx_PCCARD |
34c202c7 WD |
323 | extern int ide_devices_found; /* Initialized in check_ide_device() */ |
324 | #endif /* CONFIG_IDE_8xx_PCCARD */ | |
9fd5e31f WD |
325 | |
326 | #ifdef CONFIG_IDE_PREINIT | |
327 | WATCHDOG_RESET(); | |
328 | ||
34c202c7 WD |
329 | if (ide_preinit()) { |
330 | puts("ide_preinit failed\n"); | |
9fd5e31f WD |
331 | return; |
332 | } | |
34c202c7 | 333 | #endif /* CONFIG_IDE_PREINIT */ |
c609719b | 334 | |
c609719b WD |
335 | WATCHDOG_RESET(); |
336 | ||
34c202c7 WD |
337 | /* |
338 | * Reset the IDE just to be sure. | |
c609719b WD |
339 | * Light LED's to show |
340 | */ | |
34c202c7 WD |
341 | ide_led((LED_IDE1 | LED_IDE2), 1); /* LED's on */ |
342 | ||
343 | /* ATAPI Drives seems to need a proper IDE Reset */ | |
344 | ide_reset(); | |
c609719b | 345 | |
8d1165e1 PH |
346 | #ifdef CONFIG_IDE_INIT_POSTRESET |
347 | WATCHDOG_RESET(); | |
c609719b | 348 | |
8d1165e1 PH |
349 | if (ide_init_postreset()) { |
350 | puts("ide_preinit_postreset failed\n"); | |
351 | return; | |
352 | } | |
353 | #endif /* CONFIG_IDE_INIT_POSTRESET */ | |
c609719b WD |
354 | |
355 | /* | |
356 | * Wait for IDE to get ready. | |
357 | * According to spec, this can take up to 31 seconds! | |
358 | */ | |
34c202c7 WD |
359 | for (bus = 0; bus < CONFIG_SYS_IDE_MAXBUS; ++bus) { |
360 | int dev = | |
361 | bus * (CONFIG_SYS_IDE_MAXDEVICE / | |
362 | CONFIG_SYS_IDE_MAXBUS); | |
c609719b | 363 | |
6069ff26 WD |
364 | #ifdef CONFIG_IDE_8xx_PCCARD |
365 | /* Skip non-ide devices from probing */ | |
366 | if ((ide_devices_found & (1 << bus)) == 0) { | |
34c202c7 | 367 | ide_led((LED_IDE1 | LED_IDE2), 0); /* LED's off */ |
6069ff26 WD |
368 | continue; |
369 | } | |
370 | #endif | |
34c202c7 | 371 | printf("Bus %d: ", bus); |
c609719b WD |
372 | |
373 | ide_bus_ok[bus] = 0; | |
374 | ||
375 | /* Select device | |
376 | */ | |
34c202c7 WD |
377 | udelay(100000); /* 100 ms */ |
378 | ide_outb(dev, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(dev)); | |
379 | udelay(100000); /* 100 ms */ | |
c609719b WD |
380 | i = 0; |
381 | do { | |
34c202c7 | 382 | udelay(10000); /* 10 ms */ |
c609719b | 383 | |
34c202c7 | 384 | c = ide_inb(dev, ATA_STATUS); |
c609719b WD |
385 | i++; |
386 | if (i > (ATA_RESET_TIME * 100)) { | |
34c202c7 WD |
387 | puts("** Timeout **\n"); |
388 | /* LED's off */ | |
389 | ide_led((LED_IDE1 | LED_IDE2), 0); | |
c609719b WD |
390 | return; |
391 | } | |
34c202c7 WD |
392 | if ((i >= 100) && ((i % 100) == 0)) |
393 | putc('.'); | |
394 | ||
c609719b WD |
395 | } while (c & ATA_STAT_BUSY); |
396 | ||
397 | if (c & (ATA_STAT_BUSY | ATA_STAT_FAULT)) { | |
34c202c7 WD |
398 | puts("not available "); |
399 | debug("Status = 0x%02X ", c); | |
400 | #ifndef CONFIG_ATAPI /* ATAPI Devices do not set DRDY */ | |
401 | } else if ((c & ATA_STAT_READY) == 0) { | |
402 | puts("not available "); | |
403 | debug("Status = 0x%02X ", c); | |
c609719b WD |
404 | #endif |
405 | } else { | |
34c202c7 | 406 | puts("OK "); |
c609719b WD |
407 | ide_bus_ok[bus] = 1; |
408 | } | |
409 | WATCHDOG_RESET(); | |
410 | } | |
c7de829c | 411 | |
34c202c7 | 412 | putc('\n'); |
c609719b | 413 | |
34c202c7 | 414 | ide_led((LED_IDE1 | LED_IDE2), 0); /* LED's off */ |
c609719b WD |
415 | |
416 | curr_device = -1; | |
34c202c7 | 417 | for (i = 0; i < CONFIG_SYS_IDE_MAXDEVICE; ++i) { |
c609719b | 418 | int led = (IDE_BUS(i) == 0) ? LED_IDE1 : LED_IDE2; |
34c202c7 WD |
419 | ide_dev_desc[i].type = DEV_TYPE_UNKNOWN; |
420 | ide_dev_desc[i].if_type = IF_TYPE_IDE; | |
421 | ide_dev_desc[i].dev = i; | |
422 | ide_dev_desc[i].part_type = PART_TYPE_UNKNOWN; | |
423 | ide_dev_desc[i].blksz = 0; | |
0472fbfd EE |
424 | ide_dev_desc[i].log2blksz = |
425 | LOG2_INVALID(typeof(ide_dev_desc[i].log2blksz)); | |
34c202c7 WD |
426 | ide_dev_desc[i].lba = 0; |
427 | ide_dev_desc[i].block_read = ide_read; | |
0abddf82 | 428 | ide_dev_desc[i].block_write = ide_write; |
c609719b WD |
429 | if (!ide_bus_ok[IDE_BUS(i)]) |
430 | continue; | |
34c202c7 | 431 | ide_led(led, 1); /* LED on */ |
c609719b | 432 | ide_ident(&ide_dev_desc[i]); |
34c202c7 | 433 | ide_led(led, 0); /* LED off */ |
c609719b | 434 | dev_print(&ide_dev_desc[i]); |
34c202c7 | 435 | |
c609719b | 436 | if ((ide_dev_desc[i].lba > 0) && (ide_dev_desc[i].blksz > 0)) { |
34c202c7 WD |
437 | /* initialize partition type */ |
438 | init_part(&ide_dev_desc[i]); | |
c609719b WD |
439 | if (curr_device < 0) |
440 | curr_device = i; | |
441 | } | |
442 | } | |
443 | WATCHDOG_RESET(); | |
444 | } | |
445 | ||
446 | /* ------------------------------------------------------------------------- */ | |
447 | ||
df3fc526 | 448 | #ifdef CONFIG_PARTITIONS |
4101f687 | 449 | struct blk_desc *ide_get_dev(int dev) |
c609719b | 450 | { |
6d0f6bcf | 451 | return (dev < CONFIG_SYS_IDE_MAXDEVICE) ? &ide_dev_desc[dev] : NULL; |
c609719b | 452 | } |
df3fc526 | 453 | #endif |
c609719b | 454 | |
c609719b WD |
455 | /* ------------------------------------------------------------------------- */ |
456 | ||
5da627a4 | 457 | /* We only need to swap data if we are running on a big endian cpu. */ |
4d1361d8 | 458 | #if defined(__LITTLE_ENDIAN) |
288afdc9 | 459 | __weak void ide_input_swap_data(int dev, ulong *sect_buf, int words) |
f5b82c0f PH |
460 | { |
461 | ide_input_data(dev, sect_buf, words); | |
462 | } | |
5da627a4 | 463 | #else |
288afdc9 | 464 | __weak void ide_input_swap_data(int dev, ulong *sect_buf, int words) |
c609719b | 465 | { |
34c202c7 WD |
466 | volatile ushort *pbuf = |
467 | (ushort *) (ATA_CURR_BASE(dev) + ATA_DATA_REG); | |
468 | ushort *dbuf = (ushort *) sect_buf; | |
1a344f29 | 469 | |
34c202c7 WD |
470 | debug("in input swap data base for read is %lx\n", |
471 | (unsigned long) pbuf); | |
1a344f29 WD |
472 | |
473 | while (words--) { | |
0c32d96d | 474 | #ifdef __MIPS__ |
34c202c7 WD |
475 | *dbuf++ = swab16p((u16 *) pbuf); |
476 | *dbuf++ = swab16p((u16 *) pbuf); | |
0c32d96d | 477 | #else |
1a344f29 WD |
478 | *dbuf++ = ld_le16(pbuf); |
479 | *dbuf++ = ld_le16(pbuf); | |
0c32d96d | 480 | #endif /* !MIPS */ |
1a344f29 | 481 | } |
c609719b | 482 | } |
4d1361d8 | 483 | #endif /* __LITTLE_ENDIAN */ |
2262cfee WD |
484 | |
485 | ||
f2a37fcd | 486 | #if defined(CONFIG_IDE_SWAP_IO) |
288afdc9 | 487 | __weak void ide_output_data(int dev, const ulong *sect_buf, int words) |
c609719b | 488 | { |
34c202c7 WD |
489 | ushort *dbuf; |
490 | volatile ushort *pbuf; | |
1a344f29 | 491 | |
34c202c7 WD |
492 | pbuf = (ushort *) (ATA_CURR_BASE(dev) + ATA_DATA_REG); |
493 | dbuf = (ushort *) sect_buf; | |
1a344f29 WD |
494 | while (words--) { |
495 | EIEIO; | |
496 | *pbuf = *dbuf++; | |
497 | EIEIO; | |
498 | *pbuf = *dbuf++; | |
499 | } | |
c609719b | 500 | } |
34c202c7 | 501 | #else /* ! CONFIG_IDE_SWAP_IO */ |
288afdc9 | 502 | __weak void ide_output_data(int dev, const ulong *sect_buf, int words) |
2262cfee | 503 | { |
0abddf82 ML |
504 | #if defined(CONFIG_IDE_AHB) |
505 | ide_write_data(dev, sect_buf, words); | |
506 | #else | |
34c202c7 | 507 | outsw(ATA_CURR_BASE(dev) + ATA_DATA_REG, sect_buf, words << 1); |
0abddf82 | 508 | #endif |
2262cfee | 509 | } |
34c202c7 | 510 | #endif /* CONFIG_IDE_SWAP_IO */ |
c609719b | 511 | |
f2a37fcd | 512 | #if defined(CONFIG_IDE_SWAP_IO) |
288afdc9 | 513 | __weak void ide_input_data(int dev, ulong *sect_buf, int words) |
c609719b | 514 | { |
34c202c7 WD |
515 | ushort *dbuf; |
516 | volatile ushort *pbuf; | |
1a344f29 | 517 | |
34c202c7 WD |
518 | pbuf = (ushort *) (ATA_CURR_BASE(dev) + ATA_DATA_REG); |
519 | dbuf = (ushort *) sect_buf; | |
1a344f29 WD |
520 | |
521 | debug("in input data base for read is %lx\n", (unsigned long) pbuf); | |
522 | ||
523 | while (words--) { | |
cd172b71 | 524 | EIEIO; |
1a344f29 | 525 | *dbuf++ = *pbuf; |
cd172b71 | 526 | EIEIO; |
1a344f29 | 527 | *dbuf++ = *pbuf; |
a522fa0e | 528 | } |
c609719b | 529 | } |
34c202c7 | 530 | #else /* ! CONFIG_IDE_SWAP_IO */ |
288afdc9 | 531 | __weak void ide_input_data(int dev, ulong *sect_buf, int words) |
2262cfee | 532 | { |
0abddf82 ML |
533 | #if defined(CONFIG_IDE_AHB) |
534 | ide_read_data(dev, sect_buf, words); | |
535 | #else | |
34c202c7 | 536 | insw(ATA_CURR_BASE(dev) + ATA_DATA_REG, sect_buf, words << 1); |
0abddf82 | 537 | #endif |
2262cfee WD |
538 | } |
539 | ||
34c202c7 | 540 | #endif /* CONFIG_IDE_SWAP_IO */ |
c609719b WD |
541 | |
542 | /* ------------------------------------------------------------------------- | |
543 | */ | |
4101f687 | 544 | static void ide_ident(struct blk_desc *dev_desc) |
c609719b | 545 | { |
c609719b | 546 | unsigned char c; |
b18eabfa | 547 | hd_driveid_t iop; |
c609719b | 548 | |
64f70bed WD |
549 | #ifdef CONFIG_ATAPI |
550 | int retries = 0; | |
c7de829c | 551 | #endif |
c609719b | 552 | int device; |
c609719b | 553 | |
34c202c7 WD |
554 | device = dev_desc->dev; |
555 | printf(" Device %d: ", device); | |
556 | ||
557 | ide_led(DEVICE_LED(device), 1); /* LED on */ | |
c609719b WD |
558 | /* Select device |
559 | */ | |
34c202c7 WD |
560 | ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device)); |
561 | dev_desc->if_type = IF_TYPE_IDE; | |
c609719b | 562 | #ifdef CONFIG_ATAPI |
c7de829c | 563 | |
34c202c7 WD |
564 | retries = 0; |
565 | ||
566 | /* Warning: This will be tricky to read */ | |
567 | while (retries <= 1) { | |
568 | /* check signature */ | |
569 | if ((ide_inb(device, ATA_SECT_CNT) == 0x01) && | |
570 | (ide_inb(device, ATA_SECT_NUM) == 0x01) && | |
571 | (ide_inb(device, ATA_CYL_LOW) == 0x14) && | |
572 | (ide_inb(device, ATA_CYL_HIGH) == 0xEB)) { | |
573 | /* ATAPI Signature found */ | |
574 | dev_desc->if_type = IF_TYPE_ATAPI; | |
575 | /* | |
576 | * Start Ident Command | |
577 | */ | |
578 | ide_outb(device, ATA_COMMAND, ATAPI_CMD_IDENT); | |
579 | /* | |
580 | * Wait for completion - ATAPI devices need more time | |
581 | * to become ready | |
582 | */ | |
583 | c = ide_wait(device, ATAPI_TIME_OUT); | |
584 | } else | |
c609719b | 585 | #endif |
1a344f29 | 586 | { |
34c202c7 WD |
587 | /* |
588 | * Start Ident Command | |
589 | */ | |
590 | ide_outb(device, ATA_COMMAND, ATA_CMD_IDENT); | |
591 | ||
592 | /* | |
593 | * Wait for completion | |
594 | */ | |
595 | c = ide_wait(device, IDE_TIME_OUT); | |
1a344f29 | 596 | } |
34c202c7 WD |
597 | ide_led(DEVICE_LED(device), 0); /* LED off */ |
598 | ||
599 | if (((c & ATA_STAT_DRQ) == 0) || | |
600 | ((c & (ATA_STAT_FAULT | ATA_STAT_ERR)) != 0)) { | |
601 | #ifdef CONFIG_ATAPI | |
602 | { | |
603 | /* | |
604 | * Need to soft reset the device | |
605 | * in case it's an ATAPI... | |
606 | */ | |
607 | debug("Retrying...\n"); | |
608 | ide_outb(device, ATA_DEV_HD, | |
609 | ATA_LBA | ATA_DEVICE(device)); | |
610 | udelay(100000); | |
611 | ide_outb(device, ATA_COMMAND, 0x08); | |
612 | udelay(500000); /* 500 ms */ | |
613 | } | |
614 | /* | |
615 | * Select device | |
616 | */ | |
617 | ide_outb(device, ATA_DEV_HD, | |
618 | ATA_LBA | ATA_DEVICE(device)); | |
619 | retries++; | |
64f70bed | 620 | #else |
34c202c7 | 621 | return; |
64f70bed | 622 | #endif |
34c202c7 | 623 | } |
64f70bed | 624 | #ifdef CONFIG_ATAPI |
34c202c7 WD |
625 | else |
626 | break; | |
627 | } /* see above - ugly to read */ | |
64f70bed | 628 | |
34c202c7 | 629 | if (retries == 2) /* Not found */ |
64f70bed WD |
630 | return; |
631 | #endif | |
c609719b | 632 | |
f5b82c0f | 633 | ide_input_swap_data(device, (ulong *)&iop, ATA_SECTORWORDS); |
c609719b | 634 | |
34c202c7 WD |
635 | ident_cpy((unsigned char *) dev_desc->revision, iop.fw_rev, |
636 | sizeof(dev_desc->revision)); | |
637 | ident_cpy((unsigned char *) dev_desc->vendor, iop.model, | |
638 | sizeof(dev_desc->vendor)); | |
639 | ident_cpy((unsigned char *) dev_desc->product, iop.serial_no, | |
640 | sizeof(dev_desc->product)); | |
c3f9d493 WD |
641 | #ifdef __LITTLE_ENDIAN |
642 | /* | |
bcdf1d2c RR |
643 | * firmware revision, model, and serial number have Big Endian Byte |
644 | * order in Word. Convert all three to little endian. | |
c3f9d493 WD |
645 | * |
646 | * See CF+ and CompactFlash Specification Revision 2.0: | |
bcdf1d2c | 647 | * 6.2.1.6: Identify Drive, Table 39 for more details |
c3f9d493 WD |
648 | */ |
649 | ||
34c202c7 WD |
650 | strswab(dev_desc->revision); |
651 | strswab(dev_desc->vendor); | |
652 | strswab(dev_desc->product); | |
c3f9d493 | 653 | #endif /* __LITTLE_ENDIAN */ |
c609719b | 654 | |
b18eabfa | 655 | if ((iop.config & 0x0080) == 0x0080) |
c609719b WD |
656 | dev_desc->removable = 1; |
657 | else | |
658 | dev_desc->removable = 0; | |
659 | ||
c609719b | 660 | #ifdef CONFIG_ATAPI |
34c202c7 | 661 | if (dev_desc->if_type == IF_TYPE_ATAPI) { |
c609719b WD |
662 | atapi_inquiry(dev_desc); |
663 | return; | |
664 | } | |
665 | #endif /* CONFIG_ATAPI */ | |
666 | ||
c3f9d493 | 667 | #ifdef __BIG_ENDIAN |
c609719b | 668 | /* swap shorts */ |
b18eabfa | 669 | dev_desc->lba = (iop.lba_capacity << 16) | (iop.lba_capacity >> 16); |
34c202c7 | 670 | #else /* ! __BIG_ENDIAN */ |
c3f9d493 WD |
671 | /* |
672 | * do not swap shorts on little endian | |
673 | * | |
674 | * See CF+ and CompactFlash Specification Revision 2.0: | |
675 | * 6.2.1.6: Identfy Drive, Table 39, Word Address 57-58 for details. | |
676 | */ | |
b18eabfa | 677 | dev_desc->lba = iop.lba_capacity; |
34c202c7 | 678 | #endif /* __BIG_ENDIAN */ |
c40b2956 | 679 | |
42dfe7a1 | 680 | #ifdef CONFIG_LBA48 |
34c202c7 | 681 | if (iop.command_set_2 & 0x0400) { /* LBA 48 support */ |
6e592385 | 682 | dev_desc->lba48 = 1; |
34c202c7 WD |
683 | dev_desc->lba = (unsigned long long) iop.lba48_capacity[0] | |
684 | ((unsigned long long) iop.lba48_capacity[1] << 16) | | |
685 | ((unsigned long long) iop.lba48_capacity[2] << 32) | | |
686 | ((unsigned long long) iop.lba48_capacity[3] << 48); | |
c40b2956 | 687 | } else { |
c40b2956 WD |
688 | dev_desc->lba48 = 0; |
689 | } | |
690 | #endif /* CONFIG_LBA48 */ | |
c609719b | 691 | /* assuming HD */ |
34c202c7 WD |
692 | dev_desc->type = DEV_TYPE_HARDDISK; |
693 | dev_desc->blksz = ATA_BLOCKSIZE; | |
0472fbfd | 694 | dev_desc->log2blksz = LOG2(dev_desc->blksz); |
34c202c7 WD |
695 | dev_desc->lun = 0; /* just to fill something in... */ |
696 | ||
697 | #if 0 /* only used to test the powersaving mode, | |
698 | * if enabled, the drive goes after 5 sec | |
699 | * in standby mode */ | |
700 | ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device)); | |
701 | c = ide_wait(device, IDE_TIME_OUT); | |
702 | ide_outb(device, ATA_SECT_CNT, 1); | |
703 | ide_outb(device, ATA_LBA_LOW, 0); | |
704 | ide_outb(device, ATA_LBA_MID, 0); | |
705 | ide_outb(device, ATA_LBA_HIGH, 0); | |
706 | ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device)); | |
707 | ide_outb(device, ATA_COMMAND, 0xe3); | |
708 | udelay(50); | |
709 | c = ide_wait(device, IDE_TIME_OUT); /* can't take over 500 ms */ | |
c609719b WD |
710 | #endif |
711 | } | |
712 | ||
713 | ||
714 | /* ------------------------------------------------------------------------- */ | |
715 | ||
4101f687 | 716 | ulong ide_read(struct blk_desc *block_dev, lbaint_t blknr, lbaint_t blkcnt, |
7c4213f6 | 717 | void *buffer) |
c609719b | 718 | { |
7c4213f6 | 719 | int device = block_dev->dev; |
c609719b WD |
720 | ulong n = 0; |
721 | unsigned char c; | |
34c202c7 WD |
722 | unsigned char pwrsave = 0; /* power save */ |
723 | ||
42dfe7a1 | 724 | #ifdef CONFIG_LBA48 |
c40b2956 | 725 | unsigned char lba48 = 0; |
c609719b | 726 | |
413bf586 | 727 | if (blknr & 0x0000fffff0000000ULL) { |
c40b2956 WD |
728 | /* more than 28 bits used, use 48bit mode */ |
729 | lba48 = 1; | |
730 | } | |
731 | #endif | |
ff8fef56 | 732 | debug("ide_read dev %d start " LBAF ", blocks " LBAF " buffer at %lX\n", |
34c202c7 | 733 | device, blknr, blkcnt, (ulong) buffer); |
c609719b | 734 | |
34c202c7 | 735 | ide_led(DEVICE_LED(device), 1); /* LED on */ |
c609719b WD |
736 | |
737 | /* Select device | |
738 | */ | |
34c202c7 WD |
739 | ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device)); |
740 | c = ide_wait(device, IDE_TIME_OUT); | |
c609719b WD |
741 | |
742 | if (c & ATA_STAT_BUSY) { | |
34c202c7 | 743 | printf("IDE read: device %d not ready\n", device); |
c609719b WD |
744 | goto IDE_READ_E; |
745 | } | |
746 | ||
747 | /* first check if the drive is in Powersaving mode, if yes, | |
748 | * increase the timeout value */ | |
34c202c7 WD |
749 | ide_outb(device, ATA_COMMAND, ATA_CMD_CHK_PWR); |
750 | udelay(50); | |
c609719b | 751 | |
34c202c7 | 752 | c = ide_wait(device, IDE_TIME_OUT); /* can't take over 500 ms */ |
c609719b WD |
753 | |
754 | if (c & ATA_STAT_BUSY) { | |
34c202c7 | 755 | printf("IDE read: device %d not ready\n", device); |
c609719b WD |
756 | goto IDE_READ_E; |
757 | } | |
758 | if ((c & ATA_STAT_ERR) == ATA_STAT_ERR) { | |
34c202c7 | 759 | printf("No Powersaving mode %X\n", c); |
c609719b | 760 | } else { |
34c202c7 WD |
761 | c = ide_inb(device, ATA_SECT_CNT); |
762 | debug("Powersaving %02X\n", c); | |
763 | if (c == 0) | |
764 | pwrsave = 1; | |
c609719b WD |
765 | } |
766 | ||
767 | ||
768 | while (blkcnt-- > 0) { | |
769 | ||
34c202c7 | 770 | c = ide_wait(device, IDE_TIME_OUT); |
c609719b WD |
771 | |
772 | if (c & ATA_STAT_BUSY) { | |
34c202c7 | 773 | printf("IDE read: device %d not ready\n", device); |
c609719b WD |
774 | break; |
775 | } | |
42dfe7a1 | 776 | #ifdef CONFIG_LBA48 |
c40b2956 WD |
777 | if (lba48) { |
778 | /* write high bits */ | |
34c202c7 WD |
779 | ide_outb(device, ATA_SECT_CNT, 0); |
780 | ide_outb(device, ATA_LBA_LOW, (blknr >> 24) & 0xFF); | |
6d0f6bcf | 781 | #ifdef CONFIG_SYS_64BIT_LBA |
34c202c7 WD |
782 | ide_outb(device, ATA_LBA_MID, (blknr >> 32) & 0xFF); |
783 | ide_outb(device, ATA_LBA_HIGH, (blknr >> 40) & 0xFF); | |
413bf586 | 784 | #else |
34c202c7 WD |
785 | ide_outb(device, ATA_LBA_MID, 0); |
786 | ide_outb(device, ATA_LBA_HIGH, 0); | |
413bf586 | 787 | #endif |
c40b2956 WD |
788 | } |
789 | #endif | |
34c202c7 WD |
790 | ide_outb(device, ATA_SECT_CNT, 1); |
791 | ide_outb(device, ATA_LBA_LOW, (blknr >> 0) & 0xFF); | |
792 | ide_outb(device, ATA_LBA_MID, (blknr >> 8) & 0xFF); | |
793 | ide_outb(device, ATA_LBA_HIGH, (blknr >> 16) & 0xFF); | |
c40b2956 | 794 | |
42dfe7a1 | 795 | #ifdef CONFIG_LBA48 |
c40b2956 | 796 | if (lba48) { |
34c202c7 WD |
797 | ide_outb(device, ATA_DEV_HD, |
798 | ATA_LBA | ATA_DEVICE(device)); | |
799 | ide_outb(device, ATA_COMMAND, ATA_CMD_READ_EXT); | |
c40b2956 WD |
800 | |
801 | } else | |
802 | #endif | |
803 | { | |
34c202c7 WD |
804 | ide_outb(device, ATA_DEV_HD, ATA_LBA | |
805 | ATA_DEVICE(device) | ((blknr >> 24) & 0xF)); | |
806 | ide_outb(device, ATA_COMMAND, ATA_CMD_READ); | |
c40b2956 | 807 | } |
c609719b | 808 | |
34c202c7 | 809 | udelay(50); |
c609719b | 810 | |
34c202c7 WD |
811 | if (pwrsave) { |
812 | /* may take up to 4 sec */ | |
813 | c = ide_wait(device, IDE_SPIN_UP_TIME_OUT); | |
814 | pwrsave = 0; | |
c609719b | 815 | } else { |
34c202c7 WD |
816 | /* can't take over 500 ms */ |
817 | c = ide_wait(device, IDE_TIME_OUT); | |
c609719b WD |
818 | } |
819 | ||
34c202c7 WD |
820 | if ((c & (ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR)) != |
821 | ATA_STAT_DRQ) { | |
ff8fef56 SS |
822 | printf("Error (no IRQ) dev %d blk " LBAF ": status " |
823 | "%#02x\n", device, blknr, c); | |
c609719b WD |
824 | break; |
825 | } | |
826 | ||
f5b82c0f | 827 | ide_input_data(device, buffer, ATA_SECTORWORDS); |
34c202c7 | 828 | (void) ide_inb(device, ATA_STATUS); /* clear IRQ */ |
c609719b WD |
829 | |
830 | ++n; | |
831 | ++blknr; | |
0b94504d | 832 | buffer += ATA_BLOCKSIZE; |
c609719b WD |
833 | } |
834 | IDE_READ_E: | |
34c202c7 | 835 | ide_led(DEVICE_LED(device), 0); /* LED off */ |
c609719b WD |
836 | return (n); |
837 | } | |
838 | ||
839 | /* ------------------------------------------------------------------------- */ | |
840 | ||
841 | ||
4101f687 | 842 | ulong ide_write(struct blk_desc *block_dev, lbaint_t blknr, lbaint_t blkcnt, |
7c4213f6 | 843 | const void *buffer) |
c609719b | 844 | { |
7c4213f6 | 845 | int device = block_dev->dev; |
c609719b WD |
846 | ulong n = 0; |
847 | unsigned char c; | |
34c202c7 | 848 | |
42dfe7a1 | 849 | #ifdef CONFIG_LBA48 |
c40b2956 WD |
850 | unsigned char lba48 = 0; |
851 | ||
413bf586 | 852 | if (blknr & 0x0000fffff0000000ULL) { |
c40b2956 WD |
853 | /* more than 28 bits used, use 48bit mode */ |
854 | lba48 = 1; | |
855 | } | |
856 | #endif | |
c609719b | 857 | |
34c202c7 | 858 | ide_led(DEVICE_LED(device), 1); /* LED on */ |
c609719b WD |
859 | |
860 | /* Select device | |
861 | */ | |
34c202c7 | 862 | ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device)); |
c609719b WD |
863 | |
864 | while (blkcnt-- > 0) { | |
865 | ||
34c202c7 | 866 | c = ide_wait(device, IDE_TIME_OUT); |
c609719b WD |
867 | |
868 | if (c & ATA_STAT_BUSY) { | |
34c202c7 | 869 | printf("IDE read: device %d not ready\n", device); |
c609719b WD |
870 | goto WR_OUT; |
871 | } | |
42dfe7a1 | 872 | #ifdef CONFIG_LBA48 |
c40b2956 WD |
873 | if (lba48) { |
874 | /* write high bits */ | |
34c202c7 WD |
875 | ide_outb(device, ATA_SECT_CNT, 0); |
876 | ide_outb(device, ATA_LBA_LOW, (blknr >> 24) & 0xFF); | |
6d0f6bcf | 877 | #ifdef CONFIG_SYS_64BIT_LBA |
34c202c7 WD |
878 | ide_outb(device, ATA_LBA_MID, (blknr >> 32) & 0xFF); |
879 | ide_outb(device, ATA_LBA_HIGH, (blknr >> 40) & 0xFF); | |
413bf586 | 880 | #else |
34c202c7 WD |
881 | ide_outb(device, ATA_LBA_MID, 0); |
882 | ide_outb(device, ATA_LBA_HIGH, 0); | |
413bf586 | 883 | #endif |
c40b2956 WD |
884 | } |
885 | #endif | |
34c202c7 WD |
886 | ide_outb(device, ATA_SECT_CNT, 1); |
887 | ide_outb(device, ATA_LBA_LOW, (blknr >> 0) & 0xFF); | |
888 | ide_outb(device, ATA_LBA_MID, (blknr >> 8) & 0xFF); | |
889 | ide_outb(device, ATA_LBA_HIGH, (blknr >> 16) & 0xFF); | |
c40b2956 | 890 | |
42dfe7a1 | 891 | #ifdef CONFIG_LBA48 |
c40b2956 | 892 | if (lba48) { |
34c202c7 WD |
893 | ide_outb(device, ATA_DEV_HD, |
894 | ATA_LBA | ATA_DEVICE(device)); | |
895 | ide_outb(device, ATA_COMMAND, ATA_CMD_WRITE_EXT); | |
c40b2956 WD |
896 | |
897 | } else | |
898 | #endif | |
899 | { | |
34c202c7 WD |
900 | ide_outb(device, ATA_DEV_HD, ATA_LBA | |
901 | ATA_DEVICE(device) | ((blknr >> 24) & 0xF)); | |
902 | ide_outb(device, ATA_COMMAND, ATA_CMD_WRITE); | |
c40b2956 | 903 | } |
c609719b | 904 | |
34c202c7 | 905 | udelay(50); |
c609719b | 906 | |
34c202c7 WD |
907 | /* can't take over 500 ms */ |
908 | c = ide_wait(device, IDE_TIME_OUT); | |
c609719b | 909 | |
34c202c7 WD |
910 | if ((c & (ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR)) != |
911 | ATA_STAT_DRQ) { | |
ff8fef56 SS |
912 | printf("Error (no IRQ) dev %d blk " LBAF ": status " |
913 | "%#02x\n", device, blknr, c); | |
c609719b WD |
914 | goto WR_OUT; |
915 | } | |
916 | ||
f5b82c0f | 917 | ide_output_data(device, buffer, ATA_SECTORWORDS); |
34c202c7 | 918 | c = ide_inb(device, ATA_STATUS); /* clear IRQ */ |
c609719b WD |
919 | ++n; |
920 | ++blknr; | |
0b94504d | 921 | buffer += ATA_BLOCKSIZE; |
c609719b WD |
922 | } |
923 | WR_OUT: | |
34c202c7 | 924 | ide_led(DEVICE_LED(device), 0); /* LED off */ |
c609719b WD |
925 | return (n); |
926 | } | |
927 | ||
928 | /* ------------------------------------------------------------------------- */ | |
929 | ||
930 | /* | |
931 | * copy src to dest, skipping leading and trailing blanks and null | |
932 | * terminate the string | |
7d7ce412 | 933 | * "len" is the size of available memory including the terminating '\0' |
c609719b | 934 | */ |
34c202c7 WD |
935 | static void ident_cpy(unsigned char *dst, unsigned char *src, |
936 | unsigned int len) | |
c609719b | 937 | { |
7d7ce412 WD |
938 | unsigned char *end, *last; |
939 | ||
940 | last = dst; | |
34c202c7 | 941 | end = src + len - 1; |
7d7ce412 WD |
942 | |
943 | /* reserve space for '\0' */ | |
944 | if (len < 2) | |
945 | goto OUT; | |
efa329cb | 946 | |
7d7ce412 | 947 | /* skip leading white space */ |
34c202c7 | 948 | while ((*src) && (src < end) && (*src == ' ')) |
7d7ce412 WD |
949 | ++src; |
950 | ||
951 | /* copy string, omitting trailing white space */ | |
34c202c7 | 952 | while ((*src) && (src < end)) { |
7d7ce412 WD |
953 | *dst++ = *src; |
954 | if (*src++ != ' ') | |
955 | last = dst; | |
c609719b | 956 | } |
7d7ce412 WD |
957 | OUT: |
958 | *last = '\0'; | |
c609719b WD |
959 | } |
960 | ||
961 | /* ------------------------------------------------------------------------- */ | |
962 | ||
963 | /* | |
964 | * Wait until Busy bit is off, or timeout (in ms) | |
965 | * Return last status | |
966 | */ | |
34c202c7 | 967 | static uchar ide_wait(int dev, ulong t) |
c609719b | 968 | { |
34c202c7 | 969 | ulong delay = 10 * t; /* poll every 100 us */ |
c609719b WD |
970 | uchar c; |
971 | ||
2262cfee | 972 | while ((c = ide_inb(dev, ATA_STATUS)) & ATA_STAT_BUSY) { |
34c202c7 WD |
973 | udelay(100); |
974 | if (delay-- == 0) | |
c609719b | 975 | break; |
c609719b WD |
976 | } |
977 | return (c); | |
978 | } | |
979 | ||
980 | /* ------------------------------------------------------------------------- */ | |
981 | ||
982 | #ifdef CONFIG_IDE_RESET | |
983 | extern void ide_set_reset(int idereset); | |
984 | ||
34c202c7 | 985 | static void ide_reset(void) |
c609719b | 986 | { |
c609719b WD |
987 | int i; |
988 | ||
989 | curr_device = -1; | |
34c202c7 | 990 | for (i = 0; i < CONFIG_SYS_IDE_MAXBUS; ++i) |
c609719b | 991 | ide_bus_ok[i] = 0; |
34c202c7 | 992 | for (i = 0; i < CONFIG_SYS_IDE_MAXDEVICE; ++i) |
c609719b WD |
993 | ide_dev_desc[i].type = DEV_TYPE_UNKNOWN; |
994 | ||
34c202c7 | 995 | ide_set_reset(1); /* assert reset */ |
c609719b | 996 | |
e175eacc MK |
997 | /* the reset signal shall be asserted for et least 25 us */ |
998 | udelay(25); | |
999 | ||
c609719b WD |
1000 | WATCHDOG_RESET(); |
1001 | ||
c609719b WD |
1002 | /* de-assert RESET signal */ |
1003 | ide_set_reset(0); | |
1004 | ||
1005 | /* wait 250 ms */ | |
34c202c7 WD |
1006 | for (i = 0; i < 250; ++i) |
1007 | udelay(1000); | |
c609719b WD |
1008 | } |
1009 | ||
34c202c7 | 1010 | #endif /* CONFIG_IDE_RESET */ |
c609719b WD |
1011 | |
1012 | /* ------------------------------------------------------------------------- */ | |
1013 | ||
3887c3fb HS |
1014 | #if defined(CONFIG_OF_IDE_FIXUP) |
1015 | int ide_device_present(int dev) | |
1016 | { | |
1017 | if (dev >= CONFIG_SYS_IDE_MAXBUS) | |
1018 | return 0; | |
1019 | return (ide_dev_desc[dev].type == DEV_TYPE_UNKNOWN ? 0 : 1); | |
1020 | } | |
1021 | #endif | |
c609719b WD |
1022 | /* ------------------------------------------------------------------------- */ |
1023 | ||
1024 | #ifdef CONFIG_ATAPI | |
1025 | /**************************************************************************** | |
1026 | * ATAPI Support | |
1027 | */ | |
1028 | ||
f2a37fcd | 1029 | #if defined(CONFIG_IDE_SWAP_IO) |
c609719b WD |
1030 | /* since ATAPI may use commands with not 4 bytes alligned length |
1031 | * we have our own transfer functions, 2 bytes alligned */ | |
288afdc9 | 1032 | __weak void ide_output_data_shorts(int dev, ushort *sect_buf, int shorts) |
c609719b | 1033 | { |
34c202c7 WD |
1034 | ushort *dbuf; |
1035 | volatile ushort *pbuf; | |
c609719b | 1036 | |
34c202c7 WD |
1037 | pbuf = (ushort *) (ATA_CURR_BASE(dev) + ATA_DATA_REG); |
1038 | dbuf = (ushort *) sect_buf; | |
db01a2ea | 1039 | |
34c202c7 WD |
1040 | debug("in output data shorts base for read is %lx\n", |
1041 | (unsigned long) pbuf); | |
db01a2ea | 1042 | |
c609719b | 1043 | while (shorts--) { |
5cf91d6b | 1044 | EIEIO; |
1a344f29 | 1045 | *pbuf = *dbuf++; |
c609719b | 1046 | } |
1a344f29 WD |
1047 | } |
1048 | ||
288afdc9 | 1049 | __weak void ide_input_data_shorts(int dev, ushort *sect_buf, int shorts) |
1a344f29 | 1050 | { |
34c202c7 WD |
1051 | ushort *dbuf; |
1052 | volatile ushort *pbuf; | |
1a344f29 | 1053 | |
34c202c7 WD |
1054 | pbuf = (ushort *) (ATA_CURR_BASE(dev) + ATA_DATA_REG); |
1055 | dbuf = (ushort *) sect_buf; | |
1a344f29 | 1056 | |
34c202c7 WD |
1057 | debug("in input data shorts base for read is %lx\n", |
1058 | (unsigned long) pbuf); | |
1a344f29 WD |
1059 | |
1060 | while (shorts--) { | |
1061 | EIEIO; | |
1062 | *dbuf++ = *pbuf; | |
1063 | } | |
c609719b WD |
1064 | } |
1065 | ||
34c202c7 | 1066 | #else /* ! CONFIG_IDE_SWAP_IO */ |
288afdc9 | 1067 | __weak void ide_output_data_shorts(int dev, ushort *sect_buf, int shorts) |
2262cfee | 1068 | { |
34c202c7 | 1069 | outsw(ATA_CURR_BASE(dev) + ATA_DATA_REG, sect_buf, shorts); |
2262cfee WD |
1070 | } |
1071 | ||
288afdc9 | 1072 | __weak void ide_input_data_shorts(int dev, ushort *sect_buf, int shorts) |
2262cfee | 1073 | { |
34c202c7 | 1074 | insw(ATA_CURR_BASE(dev) + ATA_DATA_REG, sect_buf, shorts); |
2262cfee WD |
1075 | } |
1076 | ||
34c202c7 | 1077 | #endif /* CONFIG_IDE_SWAP_IO */ |
2262cfee | 1078 | |
c609719b WD |
1079 | /* |
1080 | * Wait until (Status & mask) == res, or timeout (in ms) | |
1081 | * Return last status | |
1082 | * This is used since some ATAPI CD ROMs clears their Busy Bit first | |
1083 | * and then they set their DRQ Bit | |
1084 | */ | |
34c202c7 | 1085 | static uchar atapi_wait_mask(int dev, ulong t, uchar mask, uchar res) |
c609719b | 1086 | { |
34c202c7 | 1087 | ulong delay = 10 * t; /* poll every 100 us */ |
c609719b WD |
1088 | uchar c; |
1089 | ||
34c202c7 WD |
1090 | /* prevents to read the status before valid */ |
1091 | c = ide_inb(dev, ATA_DEV_CTL); | |
1092 | ||
2262cfee | 1093 | while (((c = ide_inb(dev, ATA_STATUS)) & mask) != res) { |
c609719b | 1094 | /* break if error occurs (doesn't make sense to wait more) */ |
34c202c7 | 1095 | if ((c & ATA_STAT_ERR) == ATA_STAT_ERR) |
c609719b | 1096 | break; |
34c202c7 WD |
1097 | udelay(100); |
1098 | if (delay-- == 0) | |
c609719b | 1099 | break; |
c609719b WD |
1100 | } |
1101 | return (c); | |
1102 | } | |
1103 | ||
1104 | /* | |
1105 | * issue an atapi command | |
1106 | */ | |
34c202c7 WD |
1107 | unsigned char atapi_issue(int device, unsigned char *ccb, int ccblen, |
1108 | unsigned char *buffer, int buflen) | |
c609719b | 1109 | { |
34c202c7 | 1110 | unsigned char c, err, mask, res; |
c609719b | 1111 | int n; |
34c202c7 WD |
1112 | |
1113 | ide_led(DEVICE_LED(device), 1); /* LED on */ | |
c609719b WD |
1114 | |
1115 | /* Select device | |
1116 | */ | |
34c202c7 | 1117 | mask = ATA_STAT_BUSY | ATA_STAT_DRQ; |
c609719b | 1118 | res = 0; |
34c202c7 WD |
1119 | ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device)); |
1120 | c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res); | |
c609719b | 1121 | if ((c & mask) != res) { |
34c202c7 WD |
1122 | printf("ATAPI_ISSUE: device %d not ready status %X\n", device, |
1123 | c); | |
1124 | err = 0xFF; | |
c609719b WD |
1125 | goto AI_OUT; |
1126 | } | |
1127 | /* write taskfile */ | |
34c202c7 WD |
1128 | ide_outb(device, ATA_ERROR_REG, 0); /* no DMA, no overlaped */ |
1129 | ide_outb(device, ATA_SECT_CNT, 0); | |
1130 | ide_outb(device, ATA_SECT_NUM, 0); | |
1131 | ide_outb(device, ATA_CYL_LOW, (unsigned char) (buflen & 0xFF)); | |
1132 | ide_outb(device, ATA_CYL_HIGH, | |
1133 | (unsigned char) ((buflen >> 8) & 0xFF)); | |
1134 | ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device)); | |
1135 | ||
1136 | ide_outb(device, ATA_COMMAND, ATAPI_CMD_PACKET); | |
1137 | udelay(50); | |
1138 | ||
1139 | mask = ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR; | |
c609719b | 1140 | res = ATA_STAT_DRQ; |
34c202c7 | 1141 | c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res); |
c609719b | 1142 | |
34c202c7 WD |
1143 | if ((c & mask) != res) { /* DRQ must be 1, BSY 0 */ |
1144 | printf("ATAPI_ISSUE: Error (no IRQ) before sending ccb dev %d status 0x%02x\n", | |
1145 | device, c); | |
1146 | err = 0xFF; | |
c609719b WD |
1147 | goto AI_OUT; |
1148 | } | |
1149 | ||
34c202c7 | 1150 | /* write command block */ |
f5b82c0f | 1151 | ide_output_data_shorts(device, (unsigned short *) ccb, ccblen / 2); |
34c202c7 | 1152 | |
53677ef1 | 1153 | /* ATAPI Command written wait for completition */ |
34c202c7 | 1154 | udelay(5000); /* device must set bsy */ |
c609719b | 1155 | |
34c202c7 WD |
1156 | mask = ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR; |
1157 | /* | |
1158 | * if no data wait for DRQ = 0 BSY = 0 | |
1159 | * if data wait for DRQ = 1 BSY = 0 | |
1160 | */ | |
1161 | res = 0; | |
1162 | if (buflen) | |
c609719b | 1163 | res = ATA_STAT_DRQ; |
34c202c7 WD |
1164 | c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res); |
1165 | if ((c & mask) != res) { | |
c609719b | 1166 | if (c & ATA_STAT_ERR) { |
34c202c7 WD |
1167 | err = (ide_inb(device, ATA_ERROR_REG)) >> 4; |
1168 | debug("atapi_issue 1 returned sense key %X status %02X\n", | |
1169 | err, c); | |
c609719b | 1170 | } else { |
34c202c7 WD |
1171 | printf("ATAPI_ISSUE: (no DRQ) after sending ccb (%x) status 0x%02x\n", |
1172 | ccb[0], c); | |
1173 | err = 0xFF; | |
c609719b WD |
1174 | } |
1175 | goto AI_OUT; | |
1176 | } | |
34c202c7 WD |
1177 | n = ide_inb(device, ATA_CYL_HIGH); |
1178 | n <<= 8; | |
1179 | n += ide_inb(device, ATA_CYL_LOW); | |
1180 | if (n > buflen) { | |
1181 | printf("ERROR, transfer bytes %d requested only %d\n", n, | |
1182 | buflen); | |
1183 | err = 0xff; | |
c609719b WD |
1184 | goto AI_OUT; |
1185 | } | |
34c202c7 WD |
1186 | if ((n == 0) && (buflen < 0)) { |
1187 | printf("ERROR, transfer bytes %d requested %d\n", n, buflen); | |
1188 | err = 0xff; | |
c609719b WD |
1189 | goto AI_OUT; |
1190 | } | |
34c202c7 WD |
1191 | if (n != buflen) { |
1192 | debug("WARNING, transfer bytes %d not equal with requested %d\n", | |
1193 | n, buflen); | |
c609719b | 1194 | } |
34c202c7 WD |
1195 | if (n != 0) { /* data transfer */ |
1196 | debug("ATAPI_ISSUE: %d Bytes to transfer\n", n); | |
1197 | /* we transfer shorts */ | |
1198 | n >>= 1; | |
c609719b | 1199 | /* ok now decide if it is an in or output */ |
34c202c7 WD |
1200 | if ((ide_inb(device, ATA_SECT_CNT) & 0x02) == 0) { |
1201 | debug("Write to device\n"); | |
f5b82c0f PH |
1202 | ide_output_data_shorts(device, |
1203 | (unsigned short *) buffer, n); | |
c609719b | 1204 | } else { |
34c202c7 | 1205 | debug("Read from device @ %p shorts %d\n", buffer, n); |
f5b82c0f PH |
1206 | ide_input_data_shorts(device, |
1207 | (unsigned short *) buffer, n); | |
c609719b WD |
1208 | } |
1209 | } | |
34c202c7 WD |
1210 | udelay(5000); /* seems that some CD ROMs need this... */ |
1211 | mask = ATA_STAT_BUSY | ATA_STAT_ERR; | |
1212 | res = 0; | |
1213 | c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res); | |
c609719b | 1214 | if ((c & ATA_STAT_ERR) == ATA_STAT_ERR) { |
34c202c7 WD |
1215 | err = (ide_inb(device, ATA_ERROR_REG) >> 4); |
1216 | debug("atapi_issue 2 returned sense key %X status %X\n", err, | |
1217 | c); | |
c609719b WD |
1218 | } else { |
1219 | err = 0; | |
1220 | } | |
1221 | AI_OUT: | |
34c202c7 | 1222 | ide_led(DEVICE_LED(device), 0); /* LED off */ |
c609719b WD |
1223 | return (err); |
1224 | } | |
1225 | ||
1226 | /* | |
1227 | * sending the command to atapi_issue. If an status other than good | |
1228 | * returns, an request_sense will be issued | |
1229 | */ | |
1230 | ||
53677ef1 | 1231 | #define ATAPI_DRIVE_NOT_READY 100 |
c609719b WD |
1232 | #define ATAPI_UNIT_ATTN 10 |
1233 | ||
34c202c7 WD |
1234 | unsigned char atapi_issue_autoreq(int device, |
1235 | unsigned char *ccb, | |
1236 | int ccblen, | |
1237 | unsigned char *buffer, int buflen) | |
c609719b | 1238 | { |
34c202c7 WD |
1239 | unsigned char sense_data[18], sense_ccb[12]; |
1240 | unsigned char res, key, asc, ascq; | |
1241 | int notready, unitattn; | |
c609719b | 1242 | |
34c202c7 WD |
1243 | unitattn = ATAPI_UNIT_ATTN; |
1244 | notready = ATAPI_DRIVE_NOT_READY; | |
c609719b WD |
1245 | |
1246 | retry: | |
34c202c7 WD |
1247 | res = atapi_issue(device, ccb, ccblen, buffer, buflen); |
1248 | if (res == 0) | |
1249 | return 0; /* Ok */ | |
1250 | ||
1251 | if (res == 0xFF) | |
1252 | return 0xFF; /* error */ | |
1253 | ||
1254 | debug("(auto_req)atapi_issue returned sense key %X\n", res); | |
1255 | ||
1256 | memset(sense_ccb, 0, sizeof(sense_ccb)); | |
1257 | memset(sense_data, 0, sizeof(sense_data)); | |
1258 | sense_ccb[0] = ATAPI_CMD_REQ_SENSE; | |
1259 | sense_ccb[4] = 18; /* allocation Length */ | |
1260 | ||
1261 | res = atapi_issue(device, sense_ccb, 12, sense_data, 18); | |
1262 | key = (sense_data[2] & 0xF); | |
1263 | asc = (sense_data[12]); | |
1264 | ascq = (sense_data[13]); | |
1265 | ||
1266 | debug("ATAPI_CMD_REQ_SENSE returned %x\n", res); | |
1267 | debug(" Sense page: %02X key %02X ASC %02X ASCQ %02X\n", | |
1268 | sense_data[0], key, asc, ascq); | |
1269 | ||
1270 | if ((key == 0)) | |
1271 | return 0; /* ok device ready */ | |
1272 | ||
1273 | if ((key == 6) || (asc == 0x29) || (asc == 0x28)) { /* Unit Attention */ | |
1274 | if (unitattn-- > 0) { | |
1275 | udelay(200 * 1000); | |
c609719b WD |
1276 | goto retry; |
1277 | } | |
34c202c7 | 1278 | printf("Unit Attention, tried %d\n", ATAPI_UNIT_ATTN); |
c609719b WD |
1279 | goto error; |
1280 | } | |
34c202c7 WD |
1281 | if ((asc == 0x4) && (ascq == 0x1)) { |
1282 | /* not ready, but will be ready soon */ | |
1283 | if (notready-- > 0) { | |
1284 | udelay(200 * 1000); | |
c609719b WD |
1285 | goto retry; |
1286 | } | |
34c202c7 WD |
1287 | printf("Drive not ready, tried %d times\n", |
1288 | ATAPI_DRIVE_NOT_READY); | |
c609719b WD |
1289 | goto error; |
1290 | } | |
34c202c7 WD |
1291 | if (asc == 0x3a) { |
1292 | debug("Media not present\n"); | |
c609719b WD |
1293 | goto error; |
1294 | } | |
c7de829c | 1295 | |
34c202c7 WD |
1296 | printf("ERROR: Unknown Sense key %02X ASC %02X ASCQ %02X\n", key, asc, |
1297 | ascq); | |
c609719b | 1298 | error: |
34c202c7 | 1299 | debug("ERROR Sense key %02X ASC %02X ASCQ %02X\n", key, asc, ascq); |
c609719b WD |
1300 | return (0xFF); |
1301 | } | |
1302 | ||
1303 | ||
4101f687 | 1304 | static void atapi_inquiry(struct blk_desc *dev_desc) |
c609719b | 1305 | { |
34c202c7 WD |
1306 | unsigned char ccb[12]; /* Command descriptor block */ |
1307 | unsigned char iobuf[64]; /* temp buf */ | |
c609719b WD |
1308 | unsigned char c; |
1309 | int device; | |
1310 | ||
34c202c7 WD |
1311 | device = dev_desc->dev; |
1312 | dev_desc->type = DEV_TYPE_UNKNOWN; /* not yet valid */ | |
1313 | dev_desc->block_read = atapi_read; | |
c609719b | 1314 | |
34c202c7 WD |
1315 | memset(ccb, 0, sizeof(ccb)); |
1316 | memset(iobuf, 0, sizeof(iobuf)); | |
c609719b | 1317 | |
34c202c7 WD |
1318 | ccb[0] = ATAPI_CMD_INQUIRY; |
1319 | ccb[4] = 40; /* allocation Legnth */ | |
1320 | c = atapi_issue_autoreq(device, ccb, 12, (unsigned char *) iobuf, 40); | |
c609719b | 1321 | |
34c202c7 WD |
1322 | debug("ATAPI_CMD_INQUIRY returned %x\n", c); |
1323 | if (c != 0) | |
c609719b WD |
1324 | return; |
1325 | ||
1326 | /* copy device ident strings */ | |
34c202c7 WD |
1327 | ident_cpy((unsigned char *) dev_desc->vendor, &iobuf[8], 8); |
1328 | ident_cpy((unsigned char *) dev_desc->product, &iobuf[16], 16); | |
1329 | ident_cpy((unsigned char *) dev_desc->revision, &iobuf[32], 5); | |
c609719b | 1330 | |
34c202c7 WD |
1331 | dev_desc->lun = 0; |
1332 | dev_desc->lba = 0; | |
1333 | dev_desc->blksz = 0; | |
0472fbfd | 1334 | dev_desc->log2blksz = LOG2_INVALID(typeof(dev_desc->log2blksz)); |
34c202c7 | 1335 | dev_desc->type = iobuf[0] & 0x1f; |
c609719b | 1336 | |
34c202c7 | 1337 | if ((iobuf[1] & 0x80) == 0x80) |
c609719b WD |
1338 | dev_desc->removable = 1; |
1339 | else | |
1340 | dev_desc->removable = 0; | |
1341 | ||
34c202c7 WD |
1342 | memset(ccb, 0, sizeof(ccb)); |
1343 | memset(iobuf, 0, sizeof(iobuf)); | |
1344 | ccb[0] = ATAPI_CMD_START_STOP; | |
1345 | ccb[4] = 0x03; /* start */ | |
c609719b | 1346 | |
34c202c7 | 1347 | c = atapi_issue_autoreq(device, ccb, 12, (unsigned char *) iobuf, 0); |
c609719b | 1348 | |
34c202c7 WD |
1349 | debug("ATAPI_CMD_START_STOP returned %x\n", c); |
1350 | if (c != 0) | |
c609719b WD |
1351 | return; |
1352 | ||
34c202c7 WD |
1353 | memset(ccb, 0, sizeof(ccb)); |
1354 | memset(iobuf, 0, sizeof(iobuf)); | |
1355 | c = atapi_issue_autoreq(device, ccb, 12, (unsigned char *) iobuf, 0); | |
c609719b | 1356 | |
34c202c7 WD |
1357 | debug("ATAPI_CMD_UNIT_TEST_READY returned %x\n", c); |
1358 | if (c != 0) | |
c609719b WD |
1359 | return; |
1360 | ||
34c202c7 WD |
1361 | memset(ccb, 0, sizeof(ccb)); |
1362 | memset(iobuf, 0, sizeof(iobuf)); | |
1363 | ccb[0] = ATAPI_CMD_READ_CAP; | |
1364 | c = atapi_issue_autoreq(device, ccb, 12, (unsigned char *) iobuf, 8); | |
1365 | debug("ATAPI_CMD_READ_CAP returned %x\n", c); | |
1366 | if (c != 0) | |
c609719b WD |
1367 | return; |
1368 | ||
34c202c7 WD |
1369 | debug("Read Cap: LBA %02X%02X%02X%02X blksize %02X%02X%02X%02X\n", |
1370 | iobuf[0], iobuf[1], iobuf[2], iobuf[3], | |
1371 | iobuf[4], iobuf[5], iobuf[6], iobuf[7]); | |
1372 | ||
1373 | dev_desc->lba = ((unsigned long) iobuf[0] << 24) + | |
1374 | ((unsigned long) iobuf[1] << 16) + | |
1375 | ((unsigned long) iobuf[2] << 8) + ((unsigned long) iobuf[3]); | |
1376 | dev_desc->blksz = ((unsigned long) iobuf[4] << 24) + | |
1377 | ((unsigned long) iobuf[5] << 16) + | |
1378 | ((unsigned long) iobuf[6] << 8) + ((unsigned long) iobuf[7]); | |
0472fbfd | 1379 | dev_desc->log2blksz = LOG2(dev_desc->blksz); |
42dfe7a1 | 1380 | #ifdef CONFIG_LBA48 |
34c202c7 WD |
1381 | /* ATAPI devices cannot use 48bit addressing (ATA/ATAPI v7) */ |
1382 | dev_desc->lba48 = 0; | |
42dfe7a1 | 1383 | #endif |
c609719b WD |
1384 | return; |
1385 | } | |
1386 | ||
1387 | ||
1388 | /* | |
1389 | * atapi_read: | |
1390 | * we transfer only one block per command, since the multiple DRQ per | |
1391 | * command is not yet implemented | |
1392 | */ | |
1393 | #define ATAPI_READ_MAX_BYTES 2048 /* we read max 2kbytes */ | |
1394 | #define ATAPI_READ_BLOCK_SIZE 2048 /* assuming CD part */ | |
34c202c7 | 1395 | #define ATAPI_READ_MAX_BLOCK (ATAPI_READ_MAX_BYTES/ATAPI_READ_BLOCK_SIZE) |
c609719b | 1396 | |
4101f687 | 1397 | ulong atapi_read(struct blk_desc *block_dev, lbaint_t blknr, lbaint_t blkcnt, |
7c4213f6 | 1398 | void *buffer) |
c609719b | 1399 | { |
7c4213f6 | 1400 | int device = block_dev->dev; |
c609719b | 1401 | ulong n = 0; |
34c202c7 | 1402 | unsigned char ccb[12]; /* Command descriptor block */ |
c609719b WD |
1403 | ulong cnt; |
1404 | ||
77c2b210 | 1405 | debug("atapi_read dev %d start " LBAF " blocks " LBAF " buffer at %lX\n", |
34c202c7 | 1406 | device, blknr, blkcnt, (ulong) buffer); |
c609719b WD |
1407 | |
1408 | do { | |
34c202c7 WD |
1409 | if (blkcnt > ATAPI_READ_MAX_BLOCK) |
1410 | cnt = ATAPI_READ_MAX_BLOCK; | |
1411 | else | |
1412 | cnt = blkcnt; | |
1413 | ||
1414 | ccb[0] = ATAPI_CMD_READ_12; | |
1415 | ccb[1] = 0; /* reserved */ | |
1416 | ccb[2] = (unsigned char) (blknr >> 24) & 0xFF; /* MSB Block */ | |
1417 | ccb[3] = (unsigned char) (blknr >> 16) & 0xFF; /* */ | |
1418 | ccb[4] = (unsigned char) (blknr >> 8) & 0xFF; | |
1419 | ccb[5] = (unsigned char) blknr & 0xFF; /* LSB Block */ | |
1420 | ccb[6] = (unsigned char) (cnt >> 24) & 0xFF; /* MSB Block cnt */ | |
1421 | ccb[7] = (unsigned char) (cnt >> 16) & 0xFF; | |
1422 | ccb[8] = (unsigned char) (cnt >> 8) & 0xFF; | |
1423 | ccb[9] = (unsigned char) cnt & 0xFF; /* LSB Block */ | |
1424 | ccb[10] = 0; /* reserved */ | |
1425 | ccb[11] = 0; /* reserved */ | |
1426 | ||
1427 | if (atapi_issue_autoreq(device, ccb, 12, | |
1428 | (unsigned char *) buffer, | |
1429 | cnt * ATAPI_READ_BLOCK_SIZE) | |
1430 | == 0xFF) { | |
c609719b WD |
1431 | return (n); |
1432 | } | |
34c202c7 WD |
1433 | n += cnt; |
1434 | blkcnt -= cnt; | |
1435 | blknr += cnt; | |
1436 | buffer += (cnt * ATAPI_READ_BLOCK_SIZE); | |
c609719b WD |
1437 | } while (blkcnt > 0); |
1438 | return (n); | |
1439 | } | |
1440 | ||
1441 | /* ------------------------------------------------------------------------- */ | |
1442 | ||
1443 | #endif /* CONFIG_ATAPI */ | |
1444 | ||
34c202c7 WD |
1445 | U_BOOT_CMD(ide, 5, 1, do_ide, |
1446 | "IDE sub-system", | |
1447 | "reset - reset IDE controller\n" | |
1448 | "ide info - show available IDE devices\n" | |
1449 | "ide device [dev] - show or set current device\n" | |
1450 | "ide part [dev] - print partition table of one or all IDE devices\n" | |
1451 | "ide read addr blk# cnt\n" | |
1452 | "ide write addr blk# cnt - read/write `cnt'" | |
1453 | " blocks starting at block `blk#'\n" | |
1454 | " to/from memory address `addr'"); | |
1455 | ||
1456 | U_BOOT_CMD(diskboot, 3, 1, do_diskboot, | |
1457 | "boot from IDE device", "loadAddr dev:part"); |