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.
276 lines
6.6 KiB
276 lines
6.6 KiB
/*
|
|
* (C) Copyright 2003
|
|
* 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
|
|
*
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <cmd_boot.h>
|
|
#include <image.h>
|
|
#include <zlib.h>
|
|
#include <asm/byteorder.h>
|
|
#include <asm/addrspace.h>
|
|
|
|
#define LINUX_MAX_ENVS 256
|
|
#define LINUX_MAX_ARGS 256
|
|
|
|
#ifdef CONFIG_SHOW_BOOT_PROGRESS
|
|
# include <status_led.h>
|
|
# define SHOW_BOOT_PROGRESS(arg) show_boot_progress(arg)
|
|
#else
|
|
# define SHOW_BOOT_PROGRESS(arg)
|
|
#endif
|
|
|
|
extern image_header_t header; /* from cmd_bootm.c */
|
|
|
|
static int linux_argc;
|
|
static char ** linux_argv;
|
|
|
|
static char ** linux_env;
|
|
static char * linux_env_p;
|
|
static int linux_env_idx;
|
|
|
|
static void linux_params_init (ulong start, char * commandline);
|
|
static void linux_env_set (char * env_name, char * env_val);
|
|
|
|
|
|
void do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
|
|
ulong addr, ulong *len_ptr, int verify)
|
|
{
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
ulong len = 0, checksum;
|
|
ulong initrd_start, initrd_end;
|
|
ulong data;
|
|
void (*theKernel)(int, char **, char **, int *);
|
|
image_header_t *hdr = &header;
|
|
char *commandline = getenv("bootargs");
|
|
char env_buf[12];
|
|
|
|
theKernel = (void (*)(int, char **, char **, int *))ntohl(hdr->ih_ep);
|
|
|
|
/*
|
|
* Check if there is an initrd image
|
|
*/
|
|
if (argc >= 3) {
|
|
SHOW_BOOT_PROGRESS (9);
|
|
|
|
addr = simple_strtoul(argv[2], NULL, 16);
|
|
|
|
printf ("## Loading Ramdisk Image at %08lx ...\n", addr);
|
|
|
|
/* Copy header so we can blank CRC field for re-calculation */
|
|
memcpy (&header, (char *)addr, sizeof(image_header_t));
|
|
|
|
if (ntohl(hdr->ih_magic) != IH_MAGIC) {
|
|
printf ("Bad Magic Number\n");
|
|
SHOW_BOOT_PROGRESS (-10);
|
|
do_reset (cmdtp, flag, argc, argv);
|
|
}
|
|
|
|
data = (ulong)&header;
|
|
len = sizeof(image_header_t);
|
|
|
|
checksum = ntohl(hdr->ih_hcrc);
|
|
hdr->ih_hcrc = 0;
|
|
|
|
if (crc32 (0, (char *)data, len) != checksum) {
|
|
printf ("Bad Header Checksum\n");
|
|
SHOW_BOOT_PROGRESS (-11);
|
|
do_reset (cmdtp, flag, argc, argv);
|
|
}
|
|
|
|
SHOW_BOOT_PROGRESS (10);
|
|
|
|
print_image_hdr (hdr);
|
|
|
|
data = addr + sizeof(image_header_t);
|
|
len = ntohl(hdr->ih_size);
|
|
|
|
if (verify) {
|
|
ulong csum = 0;
|
|
|
|
printf (" Verifying Checksum ... ");
|
|
csum = crc32 (0, (char *)data, len);
|
|
if (csum != ntohl(hdr->ih_dcrc)) {
|
|
printf ("Bad Data CRC\n");
|
|
SHOW_BOOT_PROGRESS (-12);
|
|
do_reset (cmdtp, flag, argc, argv);
|
|
}
|
|
printf ("OK\n");
|
|
}
|
|
|
|
SHOW_BOOT_PROGRESS (11);
|
|
|
|
if ((hdr->ih_os != IH_OS_LINUX) ||
|
|
(hdr->ih_arch != IH_CPU_MIPS) ||
|
|
(hdr->ih_type != IH_TYPE_RAMDISK) ) {
|
|
printf ("No Linux MIPS Ramdisk Image\n");
|
|
SHOW_BOOT_PROGRESS (-13);
|
|
do_reset (cmdtp, flag, argc, argv);
|
|
}
|
|
|
|
/*
|
|
* Now check if we have a multifile image
|
|
*/
|
|
} else if ((hdr->ih_type==IH_TYPE_MULTI) && (len_ptr[1])) {
|
|
ulong tail = ntohl(len_ptr[0]) % 4;
|
|
int i;
|
|
|
|
SHOW_BOOT_PROGRESS (13);
|
|
|
|
/* skip kernel length and terminator */
|
|
data = (ulong)(&len_ptr[2]);
|
|
/* skip any additional image length fields */
|
|
for (i=1; len_ptr[i]; ++i)
|
|
data += 4;
|
|
/* add kernel length, and align */
|
|
data += ntohl(len_ptr[0]);
|
|
if (tail) {
|
|
data += 4 - tail;
|
|
}
|
|
|
|
len = ntohl(len_ptr[1]);
|
|
|
|
} else {
|
|
/*
|
|
* no initrd image
|
|
*/
|
|
SHOW_BOOT_PROGRESS (14);
|
|
|
|
data = 0;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
if (!data) {
|
|
printf ("No initrd\n");
|
|
}
|
|
#endif
|
|
|
|
if (data) {
|
|
initrd_start = data;
|
|
initrd_end = initrd_start + len;
|
|
} else {
|
|
initrd_start = 0;
|
|
initrd_end = 0;
|
|
}
|
|
|
|
SHOW_BOOT_PROGRESS (15);
|
|
|
|
#ifdef DEBUG
|
|
printf ("## Transferring control to Linux (at address %08lx) ...\n",
|
|
(ulong)theKernel);
|
|
#endif
|
|
|
|
linux_params_init (PHYSADDR(gd->bd->bi_boot_params), commandline);
|
|
|
|
sprintf (env_buf, "%lu", gd->ram_size >> 20);
|
|
linux_env_set ("memsize", env_buf);
|
|
|
|
sprintf (env_buf, "0x%08X", (uint)PHYSADDR(initrd_start));
|
|
linux_env_set ("initrd_start", env_buf);
|
|
|
|
sprintf (env_buf, "0x%X", (uint)(initrd_end - initrd_start));
|
|
linux_env_set ("initrd_size", env_buf);
|
|
|
|
sprintf (env_buf, "0x%08X", (uint)(gd->bd->bi_flashstart));
|
|
linux_env_set ("flash_start", env_buf);
|
|
|
|
sprintf (env_buf, "0x%X", (uint)(gd->bd->bi_flashsize));
|
|
linux_env_set ("flash_size", env_buf);
|
|
|
|
/* we assume that the kernel is in place */
|
|
printf("\nStarting kernel ...\n\n");
|
|
|
|
theKernel(linux_argc, linux_argv, linux_env, 0);
|
|
}
|
|
|
|
static void linux_params_init (ulong start, char * line)
|
|
{
|
|
char * next, * quote, * argp;
|
|
|
|
linux_argc = 1;
|
|
linux_argv = (char **) start;
|
|
linux_argv[0] = 0;
|
|
argp = (char *)(linux_argv + LINUX_MAX_ARGS);
|
|
|
|
next = line;
|
|
|
|
while (line && *line && linux_argc < LINUX_MAX_ARGS)
|
|
{
|
|
quote = strchr (line, '"');
|
|
next = strchr (line, ' ');
|
|
|
|
while (next != NULL && quote != NULL && quote < next)
|
|
{
|
|
/* we found a left quote before the next blank
|
|
* now we have to find the matching right quote
|
|
*/
|
|
next = strchr (quote + 1, '"');
|
|
if (next != NULL)
|
|
{
|
|
quote = strchr (next + 1, '"');
|
|
next = strchr (next + 1, ' ');
|
|
}
|
|
}
|
|
|
|
if (next == NULL)
|
|
{
|
|
next = line + strlen (line);
|
|
}
|
|
|
|
linux_argv [linux_argc] = argp;
|
|
memcpy (argp, line, next - line);
|
|
argp [next - line] = 0;
|
|
|
|
argp += next - line + 1;
|
|
linux_argc ++;
|
|
|
|
if (*next) next ++;
|
|
|
|
line = next;
|
|
}
|
|
|
|
linux_env = (char **)(((ulong)argp + 15) & ~15);
|
|
linux_env [0] = 0;
|
|
linux_env_p = (char *)(linux_env + LINUX_MAX_ENVS);
|
|
linux_env_idx = 0;
|
|
}
|
|
|
|
static void linux_env_set (char * env_name, char * env_val)
|
|
{
|
|
if (linux_env_idx < LINUX_MAX_ENVS - 1)
|
|
{
|
|
linux_env [linux_env_idx] = linux_env_p;
|
|
|
|
strcpy (linux_env_p, env_name);
|
|
linux_env_p += strlen (env_name);
|
|
|
|
strcpy (linux_env_p, "=");
|
|
linux_env_p += 1;
|
|
|
|
strcpy (linux_env_p, env_val);
|
|
linux_env_p += strlen (env_val);
|
|
|
|
linux_env_p ++;
|
|
linux_env [++ linux_env_idx] = 0;
|
|
}
|
|
}
|
|
|