diff options
Diffstat (limited to 'lib_m68k/bootm.c')
| -rw-r--r-- | lib_m68k/bootm.c | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/lib_m68k/bootm.c b/lib_m68k/bootm.c deleted file mode 100644 index e5ed6eb..0000000 --- a/lib_m68k/bootm.c +++ /dev/null @@ -1,146 +0,0 @@ -/* - * (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 <image.h> -#include <u-boot/zlib.h> -#include <bzlib.h> -#include <watchdog.h> -#include <environment.h> -#include <asm/byteorder.h> -#ifdef CONFIG_SHOW_BOOT_PROGRESS -# include <status_led.h> -#endif - -DECLARE_GLOBAL_DATA_PTR; - -#define PHYSADDR(x) x - -#define LINUX_MAX_ENVS 256 -#define LINUX_MAX_ARGS 256 - -static ulong get_sp (void); -static void set_clocks_in_mhz (bd_t *kbd); - -void arch_lmb_reserve(struct lmb *lmb) -{ - ulong sp; - - /* - * 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 CONFIG_SYS_BOOTMAPSZ settings), but in unused - * memory, which means far enough below the current stack - * pointer. - */ - sp = get_sp(); - debug ("## Current stack ends at 0x%08lx ", sp); - - /* adjust sp by 1K to be safe */ - sp -= 1024; - lmb_reserve(lmb, sp, (CONFIG_SYS_SDRAM_BASE + gd->ram_size - sp)); -} - -int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images) -{ - ulong rd_len; - ulong initrd_start, initrd_end; - int ret; - - ulong cmd_start, cmd_end; - ulong bootmap_base; - bd_t *kbd; - void (*kernel) (bd_t *, ulong, ulong, ulong, ulong); - struct lmb *lmb = &images->lmb; - - if ((flag != 0) && (flag != BOOTM_STATE_OS_GO)) - return 1; - - bootmap_base = getenv_bootm_low(); - - /* allocate space and init command line */ - ret = boot_get_cmdline (lmb, &cmd_start, &cmd_end, bootmap_base); - if (ret) { - puts("ERROR with allocation of cmdline\n"); - goto error; - } - - /* allocate space for kernel copy of board info */ - ret = boot_get_kbd (lmb, &kbd, bootmap_base); - if (ret) { - puts("ERROR with allocation of kernel bd\n"); - goto error; - } - set_clocks_in_mhz(kbd); - - kernel = (void (*)(bd_t *, ulong, ulong, ulong, ulong))images->ep; - - rd_len = images->rd_end - images->rd_start; - ret = boot_ramdisk_high (lmb, images->rd_start, rd_len, - &initrd_start, &initrd_end); - if (ret) - goto error; - - debug("## Transferring control to Linux (at address %08lx) ...\n", - (ulong) kernel); - - show_boot_progress (15); - - /* - * Linux Kernel Parameters (passing board info data): - * sp+00: Ignore, side effect of using jsr to jump to kernel - * sp+04: ptr to board info data - * sp+08: initrd_start or 0 if no initrd - * sp+12: initrd_end - unused if initrd_start is 0 - * sp+16: Start of command line string - * sp+20: End of command line string - */ - (*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end); - /* does not return */ -error: - return 1; -} - -static ulong get_sp (void) -{ - ulong sp; - - asm("movel %%a7, %%d0\n" - "movel %%d0, %0\n": "=d"(sp): :"%d0"); - - return sp; -} - -static void set_clocks_in_mhz (bd_t *kbd) -{ - char *s; - - if ((s = getenv("clocks_in_mhz")) != NULL) { - /* convert all clock information to MHz */ - kbd->bi_intfreq /= 1000000L; - kbd->bi_busfreq /= 1000000L; - } -} |