| Wolfgang Denk | 6cb142f | 2006-03-12 02:12:27 +0100 | [diff] [blame] | 1 | /* |
| 2 | * U-boot - bf533_linux.c |
| 3 | * |
| 4 | * Copyright (c) 2005 blackfin.uclinux.org |
| 5 | * |
| 6 | * (C) Copyright 2000-2004 |
| 7 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| 8 | * |
| 9 | * See file CREDITS for list of people who contributed to this |
| 10 | * project. |
| 11 | * |
| 12 | * This program is free software; you can redistribute it and/or |
| 13 | * modify it under the terms of the GNU General Public License as |
| 14 | * published by the Free Software Foundation; either version 2 of |
| 15 | * the License, or (at your option) any later version. |
| 16 | * |
| 17 | * This program is distributed in the hope that it will be useful, |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | * GNU General Public License for more details. |
| 21 | * |
| 22 | * You should have received a copy of the GNU General Public License |
| 23 | * along with this program; if not, write to the Free Software |
| 24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 25 | * MA 02111-1307 USA |
| 26 | */ |
| 27 | |
| 28 | /* Dummy functions, currently not in Use */ |
| 29 | |
| 30 | #include <common.h> |
| 31 | #include <command.h> |
| 32 | #include <image.h> |
| 33 | #include <zlib.h> |
| 34 | #include <asm/byteorder.h> |
| 35 | |
| 36 | #define LINUX_MAX_ENVS 256 |
| 37 | #define LINUX_MAX_ARGS 256 |
| 38 | |
| 39 | #ifdef CONFIG_SHOW_BOOT_PROGRESS |
| 40 | #include <status_led.h> |
| 41 | #define SHOW_BOOT_PROGRESS(arg) show_boot_progress(arg) |
| 42 | #else |
| 43 | #define SHOW_BOOT_PROGRESS(arg) |
| 44 | #endif |
| 45 | |
| 46 | #define CMD_LINE_ADDR 0xFF900000 /* L1 scratchpad */ |
| 47 | |
| 48 | #ifdef SHARED_RESOURCES |
| 49 | extern void swap_to(int device_id); |
| 50 | #endif |
| 51 | |
| 52 | static char *make_command_line(void); |
| 53 | |
| 54 | extern image_header_t header; |
| 55 | extern int do_reset(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]); |
| 56 | void do_bootm_linux(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[], |
| 57 | ulong addr, ulong * len_ptr, int verify) |
| 58 | { |
| 59 | int (*appl)(char *cmdline); |
| 60 | char *cmdline; |
| 61 | |
| 62 | #ifdef SHARED_RESOURCES |
| 63 | swap_to(FLASH); |
| 64 | #endif |
| 65 | |
| 66 | appl = (int (*)(char *))ntohl(header.ih_ep); |
| 67 | printf("Starting Kernel at = %x\n", appl); |
| 68 | cmdline = make_command_line(); |
| 69 | if(icache_status()){ |
| 70 | flush_instruction_cache(); |
| 71 | icache_disable(); |
| 72 | } |
| 73 | if(dcache_status()){ |
| 74 | flush_data_cache(); |
| 75 | dcache_disable(); |
| 76 | } |
| 77 | (*appl)(cmdline); |
| 78 | } |
| 79 | |
| 80 | char *make_command_line(void) |
| 81 | { |
| 82 | char *dest = (char *) CMD_LINE_ADDR; |
| 83 | char *bootargs; |
| 84 | |
| 85 | if ( (bootargs = getenv("bootargs")) == NULL ) |
| 86 | return NULL; |
| 87 | |
| 88 | strncpy(dest, bootargs, 0x1000); |
| 89 | dest[0xfff] = 0; |
| 90 | return dest; |
| 91 | } |