upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
423 lines
11 KiB
423 lines
11 KiB
/*
|
|
* (C) Copyright 2008 Semihalf
|
|
*
|
|
* (C) Copyright 2000-2006
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
#define DEBUG
|
|
|
|
#include <common.h>
|
|
#include <watchdog.h>
|
|
#include <command.h>
|
|
#include <image.h>
|
|
#include <malloc.h>
|
|
#include <zlib.h>
|
|
#include <bzlib.h>
|
|
#include <environment.h>
|
|
#include <asm/byteorder.h>
|
|
|
|
#if defined(CONFIG_OF_LIBFDT)
|
|
#include <fdt.h>
|
|
#include <libfdt.h>
|
|
#include <fdt_support.h>
|
|
|
|
static void fdt_error (const char *msg);
|
|
#endif
|
|
|
|
#ifdef CONFIG_LOGBUFFER
|
|
#include <logbuff.h>
|
|
#endif
|
|
|
|
#ifdef CFG_INIT_RAM_LOCK
|
|
#include <asm/cache.h>
|
|
#endif
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
|
|
|
|
#if defined(CONFIG_CMD_BDI)
|
|
extern int do_bdinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
|
|
#endif
|
|
|
|
void __attribute__((noinline))
|
|
do_bootm_linux(cmd_tbl_t *cmdtp, int flag,
|
|
int argc, char *argv[],
|
|
image_header_t *hdr,
|
|
int verify)
|
|
{
|
|
ulong initrd_high;
|
|
int initrd_copy_to_ram = 1;
|
|
ulong initrd_start, initrd_end;
|
|
ulong rd_data_start, rd_data_end, rd_len;
|
|
|
|
ulong cmd_start, cmd_end;
|
|
char *cmdline;
|
|
|
|
ulong sp;
|
|
char *s;
|
|
bd_t *kbd;
|
|
void (*kernel)(bd_t *, ulong, ulong, ulong, ulong);
|
|
|
|
#if defined(CONFIG_OF_LIBFDT)
|
|
image_header_t *fdt_hdr;
|
|
char *of_flat_tree = NULL;
|
|
ulong of_data = 0;
|
|
#endif
|
|
|
|
if ((s = getenv ("initrd_high")) != NULL) {
|
|
/* a value of "no" or a similar string will act like 0,
|
|
* turning the "load high" feature off. This is intentional.
|
|
*/
|
|
initrd_high = simple_strtoul(s, NULL, 16);
|
|
if (initrd_high == ~0)
|
|
initrd_copy_to_ram = 0;
|
|
} else { /* not set, no restrictions to load high */
|
|
initrd_high = ~0;
|
|
}
|
|
|
|
#ifdef CONFIG_LOGBUFFER
|
|
kbd=gd->bd;
|
|
/* Prevent initrd from overwriting logbuffer */
|
|
if (initrd_high < (kbd->bi_memsize-LOGBUFF_LEN-LOGBUFF_OVERHEAD))
|
|
initrd_high = kbd->bi_memsize-LOGBUFF_LEN-LOGBUFF_OVERHEAD;
|
|
debug ("## Logbuffer at 0x%08lX ", kbd->bi_memsize-LOGBUFF_LEN);
|
|
#endif
|
|
|
|
/*
|
|
* Booting a (Linux) kernel image
|
|
*
|
|
* Allocate space for command line and board info - the
|
|
* address should be as high as possible within the reach of
|
|
* the kernel (see CFG_BOOTMAPSZ settings), but in unused
|
|
* memory, which means far enough below the current stack
|
|
* pointer.
|
|
*/
|
|
|
|
asm( "mr %0,1": "=r"(sp) : );
|
|
|
|
debug ("## Current stack ends at 0x%08lX ", sp);
|
|
|
|
sp -= 2048; /* just to be sure */
|
|
if (sp > CFG_BOOTMAPSZ)
|
|
sp = CFG_BOOTMAPSZ;
|
|
sp &= ~0xF;
|
|
|
|
debug ("=> set upper limit to 0x%08lX\n", sp);
|
|
|
|
cmdline = (char *)((sp - CFG_BARGSIZE) & ~0xF);
|
|
kbd = (bd_t *)(((ulong)cmdline - sizeof(bd_t)) & ~0xF);
|
|
|
|
if ((s = getenv("bootargs")) == NULL)
|
|
s = "";
|
|
|
|
strcpy (cmdline, s);
|
|
|
|
cmd_start = (ulong)&cmdline[0];
|
|
cmd_end = cmd_start + strlen(cmdline);
|
|
|
|
*kbd = *(gd->bd);
|
|
|
|
#ifdef DEBUG
|
|
printf ("## cmdline at 0x%08lX ... 0x%08lX\n", cmd_start, cmd_end);
|
|
|
|
#if defined(CONFIG_CMD_BDI)
|
|
do_bdinfo (NULL, 0, 0, NULL);
|
|
#endif
|
|
#endif
|
|
|
|
if ((s = getenv ("clocks_in_mhz")) != NULL) {
|
|
/* convert all clock information to MHz */
|
|
kbd->bi_intfreq /= 1000000L;
|
|
kbd->bi_busfreq /= 1000000L;
|
|
#if defined(CONFIG_MPC8220)
|
|
kbd->bi_inpfreq /= 1000000L;
|
|
kbd->bi_pcifreq /= 1000000L;
|
|
kbd->bi_pevfreq /= 1000000L;
|
|
kbd->bi_flbfreq /= 1000000L;
|
|
kbd->bi_vcofreq /= 1000000L;
|
|
#endif
|
|
#if defined(CONFIG_CPM2)
|
|
kbd->bi_cpmfreq /= 1000000L;
|
|
kbd->bi_brgfreq /= 1000000L;
|
|
kbd->bi_sccfreq /= 1000000L;
|
|
kbd->bi_vco /= 1000000L;
|
|
#endif
|
|
#if defined(CONFIG_MPC5xxx)
|
|
kbd->bi_ipbfreq /= 1000000L;
|
|
kbd->bi_pcifreq /= 1000000L;
|
|
#endif /* CONFIG_MPC5xxx */
|
|
}
|
|
|
|
kernel = (void (*)(bd_t *, ulong, ulong, ulong, ulong))image_get_ep (hdr);
|
|
|
|
get_ramdisk (cmdtp, flag, argc, argv, hdr, verify,
|
|
IH_ARCH_PPC, &rd_data_start, &rd_data_end);
|
|
rd_len = rd_data_end - rd_data_start;
|
|
|
|
#if defined(CONFIG_OF_LIBFDT)
|
|
if(argc > 3) {
|
|
of_flat_tree = (char *) simple_strtoul(argv[3], NULL, 16);
|
|
fdt_hdr = (image_header_t *)of_flat_tree;
|
|
|
|
if (fdt_check_header (of_flat_tree) == 0) {
|
|
#ifndef CFG_NO_FLASH
|
|
if (addr2info((ulong)of_flat_tree) != NULL)
|
|
of_data = (ulong)of_flat_tree;
|
|
#endif
|
|
} else if (image_check_magic (fdt_hdr)) {
|
|
ulong image_start, image_end;
|
|
ulong load_start, load_end;
|
|
|
|
printf ("## Flat Device Tree at %08lX\n", fdt_hdr);
|
|
print_image_hdr (fdt_hdr);
|
|
|
|
image_start = (ulong)fdt_hdr;
|
|
image_end = image_get_image_end (fdt_hdr);
|
|
|
|
load_start = image_get_load (fdt_hdr);
|
|
load_end = load_start + image_get_data_size (fdt_hdr);
|
|
|
|
if ((load_start < image_end) && (load_end > image_start)) {
|
|
fdt_error ("fdt overwritten");
|
|
do_reset (cmdtp, flag, argc, argv);
|
|
}
|
|
|
|
puts (" Verifying Checksum ... ");
|
|
if (!image_check_hcrc (fdt_hdr)) {
|
|
fdt_error ("fdt header checksum invalid");
|
|
do_reset (cmdtp, flag, argc, argv);
|
|
}
|
|
|
|
if (!image_check_dcrc (fdt_hdr)) {
|
|
fdt_error ("fdt checksum invalid");
|
|
do_reset (cmdtp, flag, argc, argv);
|
|
}
|
|
puts ("OK\n");
|
|
|
|
if (!image_check_type (fdt_hdr, IH_TYPE_FLATDT)) {
|
|
fdt_error ("uImage is not a fdt");
|
|
do_reset (cmdtp, flag, argc, argv);
|
|
}
|
|
if (image_get_comp (fdt_hdr) != IH_COMP_NONE) {
|
|
fdt_error ("uImage is compressed");
|
|
do_reset (cmdtp, flag, argc, argv);
|
|
}
|
|
if (fdt_check_header (of_flat_tree + image_get_header_size ()) != 0) {
|
|
fdt_error ("uImage data is not a fdt");
|
|
do_reset (cmdtp, flag, argc, argv);
|
|
}
|
|
|
|
memmove ((void *)image_get_load (fdt_hdr),
|
|
(void *)(of_flat_tree + image_get_header_size ()),
|
|
image_get_data_size (fdt_hdr));
|
|
|
|
of_flat_tree = (char *)image_get_load (fdt_hdr);
|
|
} else {
|
|
fdt_error ("Did not find a Flattened Device Tree");
|
|
do_reset (cmdtp, flag, argc, argv);
|
|
}
|
|
printf (" Booting using the fdt at 0x%x\n",
|
|
of_flat_tree);
|
|
} else if (image_check_type (hdr, IH_TYPE_MULTI)) {
|
|
ulong fdt_data, fdt_len;
|
|
|
|
image_multi_getimg (hdr, 2, &fdt_data, &fdt_len);
|
|
if (fdt_len) {
|
|
|
|
of_flat_tree = (char *)fdt_data;
|
|
|
|
#ifndef CFG_NO_FLASH
|
|
/* move the blob if it is in flash (set of_data to !null) */
|
|
if (addr2info ((ulong)of_flat_tree) != NULL)
|
|
of_data = (ulong)of_flat_tree;
|
|
#endif
|
|
|
|
if (fdt_check_header (of_flat_tree) != 0) {
|
|
fdt_error ("image is not a fdt");
|
|
do_reset (cmdtp, flag, argc, argv);
|
|
}
|
|
|
|
if (be32_to_cpu (fdt_totalsize (of_flat_tree)) != fdt_len) {
|
|
fdt_error ("fdt size != image size");
|
|
do_reset (cmdtp, flag, argc, argv);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (rd_data_start) {
|
|
if (!initrd_copy_to_ram) { /* zero-copy ramdisk support */
|
|
initrd_start = rd_data_start;
|
|
initrd_end = rd_data_end;
|
|
} else {
|
|
initrd_start = (ulong)kbd - rd_len;
|
|
initrd_start &= ~(4096 - 1); /* align on page */
|
|
|
|
if (initrd_high) {
|
|
ulong nsp;
|
|
|
|
/*
|
|
* the inital ramdisk does not need to be within
|
|
* CFG_BOOTMAPSZ as it is not accessed until after
|
|
* the mm system is initialised.
|
|
*
|
|
* do the stack bottom calculation again and see if
|
|
* the initrd will fit just below the monitor stack
|
|
* bottom without overwriting the area allocated
|
|
* above for command line args and board info.
|
|
*/
|
|
asm( "mr %0,1": "=r"(nsp) : );
|
|
nsp -= 2048; /* just to be sure */
|
|
nsp &= ~0xF;
|
|
if (nsp > initrd_high) /* limit as specified */
|
|
nsp = initrd_high;
|
|
nsp -= rd_len;
|
|
nsp &= ~(4096 - 1); /* align on page */
|
|
if (nsp >= sp)
|
|
initrd_start = nsp;
|
|
}
|
|
|
|
show_boot_progress (12);
|
|
|
|
debug ("## initrd at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n",
|
|
rd_data_start, rd_data_end - 1, rd_len, rd_len);
|
|
|
|
initrd_end = initrd_start + rd_len;
|
|
printf (" Loading Ramdisk to %08lx, end %08lx ... ",
|
|
initrd_start, initrd_end);
|
|
|
|
memmove_wd((void *)initrd_start,
|
|
(void *)rd_data_start, rd_len, CHUNKSZ);
|
|
|
|
puts ("OK\n");
|
|
}
|
|
} else {
|
|
initrd_start = 0;
|
|
initrd_end = 0;
|
|
}
|
|
|
|
#if defined(CONFIG_OF_LIBFDT)
|
|
|
|
#ifdef CFG_BOOTMAPSZ
|
|
/*
|
|
* The blob must be within CFG_BOOTMAPSZ,
|
|
* so we flag it to be copied if it is not.
|
|
*/
|
|
if (of_flat_tree >= (char *)CFG_BOOTMAPSZ)
|
|
of_data = (ulong)of_flat_tree;
|
|
#endif
|
|
|
|
/* move of_flat_tree if needed */
|
|
if (of_data) {
|
|
int err;
|
|
ulong of_start, of_len;
|
|
|
|
of_len = be32_to_cpu(fdt_totalsize(of_data));
|
|
|
|
/* position on a 4K boundary before the kbd */
|
|
of_start = (ulong)kbd - of_len;
|
|
of_start &= ~(4096 - 1); /* align on page */
|
|
debug ("## device tree at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n",
|
|
of_data, of_data + of_len - 1, of_len, of_len);
|
|
|
|
of_flat_tree = (char *)of_start;
|
|
printf (" Loading Device Tree to %08lx, end %08lx ... ",
|
|
of_start, of_start + of_len - 1);
|
|
err = fdt_open_into((void *)of_data, (void *)of_start, of_len);
|
|
if (err != 0) {
|
|
fdt_error ("fdt move failed");
|
|
do_reset (cmdtp, flag, argc, argv);
|
|
}
|
|
puts ("OK\n");
|
|
}
|
|
/*
|
|
* Add the chosen node if it doesn't exist, add the env and bd_t
|
|
* if the user wants it (the logic is in the subroutines).
|
|
*/
|
|
if (of_flat_tree) {
|
|
if (fdt_chosen(of_flat_tree, initrd_start, initrd_end, 0) < 0) {
|
|
fdt_error ("/chosen node create failed");
|
|
do_reset (cmdtp, flag, argc, argv);
|
|
}
|
|
#ifdef CONFIG_OF_HAS_UBOOT_ENV
|
|
if (fdt_env(of_flat_tree) < 0) {
|
|
fdt_error ("/u-boot-env node create failed");
|
|
do_reset (cmdtp, flag, argc, argv);
|
|
}
|
|
#endif
|
|
#ifdef CONFIG_OF_HAS_BD_T
|
|
if (fdt_bd_t(of_flat_tree) < 0) {
|
|
fdt_error ("/bd_t node create failed");
|
|
do_reset (cmdtp, flag, argc, argv);
|
|
}
|
|
#endif
|
|
#ifdef CONFIG_OF_BOARD_SETUP
|
|
/* Call the board-specific fixup routine */
|
|
ft_board_setup(of_flat_tree, gd->bd);
|
|
#endif
|
|
}
|
|
#endif /* CONFIG_OF_LIBFDT */
|
|
|
|
debug ("## Transferring control to Linux (at address %08lx) ...\n",
|
|
(ulong)kernel);
|
|
|
|
show_boot_progress (15);
|
|
|
|
#if defined(CFG_INIT_RAM_LOCK) && !defined(CONFIG_E500)
|
|
unlock_ram_in_cache();
|
|
#endif
|
|
|
|
#if defined(CONFIG_OF_LIBFDT)
|
|
if (of_flat_tree) { /* device tree; boot new style */
|
|
/*
|
|
* Linux Kernel Parameters (passing device tree):
|
|
* r3: pointer to the fdt, followed by the board info data
|
|
* r4: physical pointer to the kernel itself
|
|
* r5: NULL
|
|
* r6: NULL
|
|
* r7: NULL
|
|
*/
|
|
(*kernel) ((bd_t *)of_flat_tree, (ulong)kernel, 0, 0, 0);
|
|
/* does not return */
|
|
}
|
|
#endif
|
|
/*
|
|
* Linux Kernel Parameters (passing board info data):
|
|
* r3: ptr to board info data
|
|
* r4: initrd_start or 0 if no initrd
|
|
* r5: initrd_end - unused if r4 is 0
|
|
* r6: Start of command line string
|
|
* r7: End of command line string
|
|
*/
|
|
(*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end);
|
|
/* does not return */
|
|
}
|
|
|
|
#if defined(CONFIG_OF_LIBFDT)
|
|
static void fdt_error (const char *msg)
|
|
{
|
|
puts ("ERROR: ");
|
|
puts (msg);
|
|
puts (" - must RESET the board to recover.\n");
|
|
}
|
|
#endif
|
|
|