2 * Copyright (c) 2000 Benno Rice <benno@jeamland.net>
3 * Copyright (c) 2000 Stephane Potvin <sepotvin@videotron.ca>
4 * Copyright (c) 2007-2008 Semihalf, Rafal Jaworowski <raj@semihalf.com>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
34 #include "api_public.h"
35 #include "bootstrap.h"
40 #define nitems(x) (sizeof((x)) / sizeof((x)[0]))
43 struct uboot_devdesc currdev;
44 struct arch_switch archsw; /* MI/MD interface boundary */
51 { "disk", DEV_TYP_STOR },
52 { "ide", DEV_TYP_STOR | DT_STOR_IDE },
53 { "mmc", DEV_TYP_STOR | DT_STOR_MMC },
54 { "sata", DEV_TYP_STOR | DT_STOR_SATA },
55 { "scsi", DEV_TYP_STOR | DT_STOR_SCSI },
56 { "usb", DEV_TYP_STOR | DT_STOR_USB },
57 { "net", DEV_TYP_NET }
61 extern char bootprog_name[];
62 extern char bootprog_rev[];
63 extern char bootprog_date[];
64 extern char bootprog_maker[];
66 extern unsigned char _etext[];
67 extern unsigned char _edata[];
68 extern unsigned char __bss_start[];
69 extern unsigned char __sbss_start[];
70 extern unsigned char __sbss_end[];
71 extern unsigned char _end[];
73 #ifdef LOADER_FDT_SUPPORT
74 extern int command_fdt_internal(int argc, char *argv[]);
78 dump_sig(struct api_signature *sig)
81 printf("signature:\n");
82 printf(" version\t= %d\n", sig->version);
83 printf(" checksum\t= 0x%08x\n", sig->checksum);
84 printf(" sc entry\t= 0x%08x\n", sig->syscall);
92 printf("\naddresses info:\n");
93 printf(" _etext (sdata) = 0x%08x\n", (uint32_t)_etext);
94 printf(" _edata = 0x%08x\n", (uint32_t)_edata);
95 printf(" __sbss_start = 0x%08x\n", (uint32_t)__sbss_start);
96 printf(" __sbss_end = 0x%08x\n", (uint32_t)__sbss_end);
97 printf(" __sbss_start = 0x%08x\n", (uint32_t)__bss_start);
98 printf(" _end = 0x%08x\n", (uint32_t)_end);
99 printf(" syscall entry = 0x%08x\n", (uint32_t)syscall_ptr);
104 memsize(struct sys_info *si, int flags)
110 for (i = 0; i < si->mr_no; i++)
111 if (si->mr[i].flags == flags && si->mr[i].size)
112 size += (si->mr[i].size);
122 int t[3] = { MR_ATTR_DRAM, MR_ATTR_FLASH, MR_ATTR_SRAM };
125 if ((si = ub_get_sys_info()) == NULL)
126 panic("could not retrieve system info");
128 for (i = 0; i < 3; i++) {
129 size = memsize(si, t[i]);
131 printf("%s: %lldMB\n", ub_mem_type(t[i]),
137 get_device_type(const char *devstr, int *devtype)
141 struct device_type *dt;
144 for (i = 0; i < nitems(device_types); i++) {
145 dt = &device_types[i];
146 namelen = strlen(dt->name);
147 if (strncmp(dt->name, devstr, namelen) == 0) {
149 return (devstr + namelen);
152 printf("Unknown device type '%s'\n", devstr);
160 device_typename(int type)
164 for (i = 0; i < nitems(device_types); i++)
165 if (device_types[i].type == type)
166 return (device_types[i].name);
168 return ("<unknown>");
172 * Parse a device string into type, unit, slice and partition numbers. A
173 * returned value of -1 for type indicates a search should be done for the
174 * first loadable device, otherwise a returned value of -1 for unit
175 * indicates a search should be done for the first loadable device of the
178 * The returned values for slice and partition are interpreted by
181 * Valid device strings: For device types:
183 * <type_name> DEV_TYP_STOR, DEV_TYP_NET
184 * <type_name><unit> DEV_TYP_STOR, DEV_TYP_NET
185 * <type_name><unit>: DEV_TYP_STOR, DEV_TYP_NET
186 * <type_name><unit>:<slice> DEV_TYP_STOR
187 * <type_name><unit>:<slice>. DEV_TYP_STOR
188 * <type_name><unit>:<slice>.<partition> DEV_TYP_STOR
190 * For valid type names, see the device_types array, above.
192 * Slice numbers are 1-based. 0 is a wildcard.
195 get_load_device(int *type, int *unit, int *slice, int *partition)
206 devstr = ub_env_get("loaderdev");
207 if (devstr == NULL) {
208 printf("U-Boot env: loaderdev not set, will probe all devices.\n");
211 printf("U-Boot env: loaderdev='%s'\n", devstr);
213 p = get_device_type(devstr, type);
215 /* Ignore optional spaces after the device name. */
219 /* Unknown device name, or a known name without unit number. */
220 if ((*type == -1) || (*p == '\0')) {
224 /* Malformed unit number. */
230 /* Guaranteed to extract a number from the string, as *p is a digit. */
231 *unit = strtol(p, &endp, 10);
234 /* Known device name with unit number and nothing else. */
239 /* Device string is malformed beyond unit number. */
248 /* No slice and partition specification. */
252 /* Only DEV_TYP_STOR devices can have a slice specification. */
253 if (!(*type & DEV_TYP_STOR)) {
259 *slice = strtoul(p, &endp, 10);
261 /* Malformed slice number. */
271 /* No partition specification. */
275 /* Device string is malformed beyond slice number. */
285 /* No partition specification. */
289 *partition = strtol(p, &endp, 10);
292 /* Full, valid device string. */
296 /* Junk beyond partition number. */
304 print_disk_probe_info()
309 if (currdev.d_disk.slice > 0)
310 sprintf(slice, "%d", currdev.d_disk.slice);
312 strcpy(slice, "<auto>");
314 if (currdev.d_disk.partition > 0)
315 sprintf(partition, "%d", currdev.d_disk.partition);
317 strcpy(partition, "<auto>");
319 printf(" Checking unit=%d slice=%s partition=%s...",
320 currdev.d_unit, slice, partition);
325 probe_disks(int devidx, int load_type, int load_unit, int load_slice,
328 int open_result, unit;
331 currdev.d_disk.slice = load_slice;
332 currdev.d_disk.partition = load_partition;
334 f.f_devdata = &currdev;
337 if (load_type == -1) {
338 printf(" Probing all disk devices...\n");
339 /* Try each disk in succession until one works. */
340 for (currdev.d_unit = 0; currdev.d_unit < UB_MAX_DEV;
342 print_disk_probe_info();
343 open_result = devsw[devidx]->dv_open(&f, &currdev);
344 if (open_result == 0) {
353 if (load_unit == -1) {
354 printf(" Probing all %s devices...\n", device_typename(load_type));
355 /* Try each disk of given type in succession until one works. */
356 for (unit = 0; unit < UB_MAX_DEV; unit++) {
357 currdev.d_unit = uboot_diskgetunit(load_type, unit);
358 if (currdev.d_unit == -1)
360 print_disk_probe_info();
361 open_result = devsw[devidx]->dv_open(&f, &currdev);
362 if (open_result == 0) {
371 if ((currdev.d_unit = uboot_diskgetunit(load_type, load_unit)) != -1) {
372 print_disk_probe_info();
373 open_result = devsw[devidx]->dv_open(&f,&currdev);
374 if (open_result == 0) {
381 printf(" Requested disk type/unit not found\n");
388 struct api_signature *sig = NULL;
389 int load_type, load_unit, load_slice, load_partition;
391 const char * loaderdev;
394 * If we can't find the magic signature and related info, exit with a
395 * unique error code that U-Boot reports as "## Application terminated,
396 * rc = 0xnnbadab1". Hopefully 'badab1' looks enough like "bad api" to
397 * provide a clue. It's better than 0xffffffff anyway.
399 if (!api_search_sig(&sig))
402 syscall_ptr = sig->syscall;
403 if (syscall_ptr == NULL)
406 if (sig->version > API_SIG_VERSION)
409 /* Clear BSS sections */
410 bzero(__sbss_start, __sbss_end - __sbss_start);
411 bzero(__bss_start, _end - __bss_start);
414 * Initialise the heap as early as possible. Once this is done,
415 * alloc() is usable. The stack is buried inside us, so this is safe.
417 setheap((void *)end, (void *)(end + 512 * 1024));
423 printf("Compatible U-Boot API signature found @%x\n", (uint32_t)sig);
426 printf("%s, Revision %s\n", bootprog_name, bootprog_rev);
427 printf("(%s, %s)\n", bootprog_maker, bootprog_date);
436 * Enumerate U-Boot devices
438 if ((devs_no = ub_dev_enum()) == 0)
439 panic("no U-Boot devices found");
440 printf("Number of U-Boot devices: %d\n", devs_no);
442 get_load_device(&load_type, &load_unit, &load_slice, &load_partition);
445 * March through the device switch probing for things.
447 for (i = 0; devsw[i] != NULL; i++) {
449 if (devsw[i]->dv_init == NULL)
451 if ((devsw[i]->dv_init)() != 0)
454 printf("Found U-Boot device: %s\n", devsw[i]->dv_name);
456 currdev.d_dev = devsw[i];
457 currdev.d_type = currdev.d_dev->dv_type;
460 if ((load_type == -1 || (load_type & DEV_TYP_STOR)) &&
461 strcmp(devsw[i]->dv_name, "disk") == 0) {
462 if (probe_disks(i, load_type, load_unit, load_slice,
463 load_partition) == 0)
467 if ((load_type == -1 || (load_type & DEV_TYP_NET)) &&
468 strcmp(devsw[i]->dv_name, "net") == 0)
473 * If we couldn't find a boot device, return an error to u-boot.
474 * U-boot may be running a boot script that can try something different
475 * so returning an error is better than forcing a reboot.
477 if (devsw[i] == NULL) {
478 printf("No boot device found!\n");
482 env_setenv("currdev", EV_VOLATILE, uboot_fmtdev(&currdev),
483 uboot_setcurrdev, env_nounset);
484 env_setenv("loaddev", EV_VOLATILE, uboot_fmtdev(&currdev),
485 env_noset, env_nounset);
487 setenv("LINES", "24", 1); /* optional */
488 setenv("prompt", "loader>", 1);
490 archsw.arch_getdev = uboot_getdev;
491 archsw.arch_copyin = uboot_copyin;
492 archsw.arch_copyout = uboot_copyout;
493 archsw.arch_readin = uboot_readin;
494 archsw.arch_autoload = uboot_autoload;
496 interact(); /* doesn't return */
502 COMMAND_SET(heap, "heap", "show heap usage", command_heap);
504 command_heap(int argc, char *argv[])
507 printf("heap base at %p, top at %p, used %d\n", end, sbrk(0),
513 COMMAND_SET(reboot, "reboot", "reboot the system", command_reboot);
515 command_reboot(int argc, char *argv[])
518 printf("Resetting...\n");
521 printf("Reset failed!\n");
525 COMMAND_SET(devinfo, "devinfo", "show U-Boot devices", command_devinfo);
527 command_devinfo(int argc, char *argv[])
531 if ((devs_no = ub_dev_enum()) == 0) {
532 command_errmsg = "no U-Boot devices found!?";
536 printf("U-Boot devices:\n");
537 for (i = 0; i < devs_no; i++) {
544 COMMAND_SET(sysinfo, "sysinfo", "show U-Boot system info", command_sysinfo);
546 command_sysinfo(int argc, char *argv[])
550 if ((si = ub_get_sys_info()) == NULL) {
551 command_errmsg = "could not retrieve U-Boot sys info!?";
555 printf("U-Boot system info:\n");
567 handle_uboot_env_var(enum ubenv_action action, const char * var)
573 * If the user prepended "uboot." (which is how they usually see these
574 * names) strip it off as a convenience.
576 if (strncmp(var, "uboot.", 6) == 0) {
577 snprintf(ubv, sizeof(ubv), "%s", &var[6]);
580 val = ub_env_get(var);
581 if (action == UBENV_SHOW) {
583 printf("uboot.%s is not set\n", var);
585 printf("uboot.%s=%s\n", var, val);
586 } else if (action == UBENV_IMPORT) {
588 snprintf(ubv, sizeof(ubv), "uboot.%s", var);
595 command_ubenv(int argc, char *argv[])
597 enum ubenv_action action;
601 action = UBENV_UNKNOWN;
603 if (strcasecmp(argv[1], "import") == 0)
604 action = UBENV_IMPORT;
605 else if (strcasecmp(argv[1], "show") == 0)
608 if (action == UBENV_UNKNOWN) {
609 command_errmsg = "usage: 'ubenv <import|show> [var ...]";
614 for (i = 2; i < argc; i++)
615 handle_uboot_env_var(action, argv[i]);
619 if ((var = ub_env_enum(var)) == NULL)
621 handle_uboot_env_var(action, var);
627 COMMAND_SET(ubenv, "ubenv", "show or import U-Boot env vars", command_ubenv);
629 #ifdef LOADER_FDT_SUPPORT
631 * Since proper fdt command handling function is defined in fdt_loader_cmd.c,
632 * and declaring it as extern is in contradiction with COMMAND_SET() macro
633 * (which uses static pointer), we're defining wrapper function, which
634 * calls the proper fdt handling routine.
637 command_fdt(int argc, char *argv[])
640 return (command_fdt_internal(argc, argv));
643 COMMAND_SET(fdt, "fdt", "flattened device tree handling", command_fdt);