2011-04-01 12:20:15 +00:00
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#include <common.h>
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#include <command.h>
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#include <fs.h>
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2011-12-12 09:43:33 +00:00
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#include <of.h>
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2011-04-01 12:20:15 +00:00
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#include <fcntl.h>
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#include <errno.h>
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#include <malloc.h>
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2011-08-17 17:57:47 +00:00
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#include <sizes.h>
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2011-04-01 12:20:15 +00:00
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#include <asm/byteorder.h>
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#include <asm/armlinux.h>
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#include <asm/system.h>
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2011-08-17 17:57:47 +00:00
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#include <asm-generic/memory_layout.h>
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2011-09-23 09:00:51 +00:00
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#include <memory.h>
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2011-04-01 12:20:15 +00:00
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struct zimage_header {
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u32 unused[9];
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u32 magic;
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u32 start;
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u32 end;
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};
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#define ZIMAGE_MAGIC 0x016F2818
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2011-12-21 13:18:57 +00:00
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static int do_bootz(int argc, char *argv[])
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2011-04-01 12:20:15 +00:00
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{
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int fd, ret, swap = 0;
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2011-08-17 17:57:47 +00:00
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struct zimage_header __header, *header;
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2011-04-01 12:20:15 +00:00
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void *zimage;
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2011-12-12 09:43:33 +00:00
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void *oftree = NULL;
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2011-04-01 12:20:15 +00:00
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u32 end;
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2011-08-17 17:57:47 +00:00
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int usemap = 0;
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2011-09-23 09:00:51 +00:00
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struct memory_bank *bank = list_first_entry(&memory_banks, struct memory_bank, list);
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2012-10-15 17:20:40 +00:00
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struct resource *res = NULL;
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2011-04-01 12:20:15 +00:00
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2011-12-21 13:17:26 +00:00
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if (argc != 2)
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return COMMAND_ERROR_USAGE;
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2011-04-01 12:20:15 +00:00
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fd = open(argv[1], O_RDONLY);
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if (fd < 0) {
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perror("open");
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return 1;
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}
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2011-08-17 17:57:47 +00:00
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/*
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* We can save the memcpy of the zImage if it already is in
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* the first 128MB of SDRAM.
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*/
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zimage = memmap(fd, PROT_READ);
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2011-09-23 09:00:51 +00:00
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if (zimage && (unsigned long)zimage >= bank->start &&
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(unsigned long)zimage < bank->start + SZ_128M) {
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2011-08-17 17:57:47 +00:00
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usemap = 1;
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header = zimage;
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}
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if (!usemap) {
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header = &__header;
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2011-10-14 12:11:28 +00:00
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ret = read(fd, header, sizeof(*header));
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2011-08-17 17:57:47 +00:00
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if (ret < sizeof(*header)) {
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printf("could not read %s\n", argv[1]);
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goto err_out;
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}
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2011-04-01 12:20:15 +00:00
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}
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2011-08-17 17:57:47 +00:00
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switch (header->magic) {
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2011-04-01 12:20:15 +00:00
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#ifdef CONFIG_BOOT_ENDIANNESS_SWITCH
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case swab32(ZIMAGE_MAGIC):
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swap = 1;
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/* fall through */
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#endif
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case ZIMAGE_MAGIC:
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break;
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default:
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2011-08-17 17:57:47 +00:00
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printf("invalid magic 0x%08x\n", header->magic);
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2011-04-01 12:20:15 +00:00
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goto err_out;
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}
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2011-08-17 17:57:47 +00:00
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end = header->end;
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2011-04-01 12:20:15 +00:00
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if (swap)
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end = swab32(end);
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2011-08-17 17:57:47 +00:00
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if (!usemap) {
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2011-09-23 09:00:51 +00:00
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if (bank->size <= SZ_128M) {
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2011-08-17 17:57:47 +00:00
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zimage = xmalloc(end);
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} else {
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2011-09-23 09:00:51 +00:00
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zimage = (void *)bank->start + SZ_8M;
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2012-10-15 17:20:40 +00:00
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res = request_sdram_region("zimage",
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bank->start + SZ_8M, end);
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if (!res) {
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printf("can't request region for kernel\n");
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2011-08-17 17:57:47 +00:00
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goto err_out1;
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}
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}
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2011-10-14 12:37:56 +00:00
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memcpy(zimage, header, sizeof(*header));
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2011-08-17 17:57:47 +00:00
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2011-10-14 12:37:56 +00:00
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ret = read(fd, zimage + sizeof(*header), end - sizeof(*header));
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if (ret < end - sizeof(*header)) {
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2011-08-17 17:57:47 +00:00
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printf("could not read %s\n", argv[1]);
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2012-10-15 17:20:40 +00:00
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goto err_out2;
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2011-08-17 17:57:47 +00:00
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}
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2011-04-01 12:20:15 +00:00
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}
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if (swap) {
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void *ptr;
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for (ptr = zimage; ptr < zimage + end; ptr += 4)
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*(u32 *)ptr = swab32(*(u32 *)ptr);
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}
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printf("loaded zImage from %s with size %d\n", argv[1], end);
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2011-12-12 09:43:33 +00:00
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#ifdef CONFIG_OFTREE
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2013-01-10 13:37:17 +00:00
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oftree = of_get_fixed_tree(NULL);
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2011-12-12 09:43:33 +00:00
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#endif
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2011-04-01 12:20:15 +00:00
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2011-12-12 09:43:33 +00:00
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start_linux(zimage, swap, 0, 0, oftree);
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2011-04-01 12:20:15 +00:00
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return 0;
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2012-10-15 17:20:40 +00:00
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err_out2:
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if (res)
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release_sdram_region(res);
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2011-04-01 12:20:15 +00:00
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err_out1:
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free(zimage);
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err_out:
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close(fd);
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return 1;
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}
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BAREBOX_CMD_START(bootz)
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.cmd = do_bootz,
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commands: harmonize in-barebox documentation
This patch does probably too much, but it's hard (and very
cumbersome/time consuming) to break it out. What is does is this:
* each command has one short description, e.g. "list MUX configuration"
* made sure the short descriptions start lowercase
* each command has one usage. That string contains just the
options, e.g. "[-npn]". It's not part of the long help text.
* that is, it doesn't say "[OPTIONS]" anymore, every usable option
is listed by character in this (short) option string (the long
description is in the long help text, as before)
* help texts have been reworked, to make them
- sometimes smaller
- sometimes describe the options better
- more often present themselves in a nicer format
* all long help texts are now created with BUSYBOX_CMD_HELP_
macros, no more 'static const __maybe_unused char cmd_foobar_help[]'
* made sure the long help texts starts uppercase
* because cmdtp->name and cmdtp->opts together provide the new usage,
all "Usage: foobar" texts have been removed from the long help texts
* BUSYBOX_CMD_HELP_TEXT() provides the trailing newline by itself, this
is nicer in the source code
* BUSYBOX_CMD_HELP_OPT() provides the trailing newline by itself
* made sure no line gets longer than 77 characters
* delibertely renamed cmdtp->usage, so that we can get compile-time
errors (e.g. in out-of-tree modules that use register_command()
* the 'help' command can now always emit the usage, even without
compiled long help texts
* 'help -v' gives a list of commands with their short description, this
is similar like the old "help" command before my patchset
* 'help -a' gives out help of all commands
Signed-off-by: Holger Schurig <holgerschurig@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2014-05-13 08:28:42 +00:00
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BAREBOX_CMD_DESC("boot Linux zImage")
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BAREBOX_CMD_OPTS("FILE")
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commands: group 'help' output
The old output of "help" was just producing a long list, that usually
scrolled of the screen (even on a X11 terminal). This list is more
compact, and also sorted by groups.
The old output format (plus grouping) is now available with 'help -v'.
Example:
Information commands:
?, devinfo, help, iomem, meminfo, version
Boot commands:
boot, bootm, go, loadb, loads, loadx, loady, saves, uimage
...
Signed-off-by: Holger Schurig <holgerschurig@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2014-05-13 14:14:05 +00:00
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BAREBOX_CMD_GROUP(CMD_GRP_BOOT)
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2011-04-01 12:20:15 +00:00
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BAREBOX_CMD_END
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