projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| e0f1fd4c SK |
1 | /* |
| 2 | * (C) Copyright 2011 Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> | |
| 3 | * | |
| 4 | * Based on microblaze implementation by: | |
| 5 | * (C) Copyright 2007 Michal Simek | |
| 6 | * (C) Copyright 2004 Atmark Techno, Inc. | |
| 7 | * | |
| 8 | * Michal SIMEK <monstr@monstr.eu> | |
| 9 | * Yasushi SHOJI <yashi@atmark-techno.com> | |
| 10 | * | |
| 11 | * See file CREDITS for list of people who contributed to this | |
| 12 | * project. | |
| 13 | * | |
| 14 | * This program is free software; you can redistribute it and/or | |
| 15 | * modify it under the terms of the GNU General Public License as | |
| 16 | * published by the Free Software Foundation; either version 2 of | |
| 17 | * the License, or (at your option) any later version. | |
| 18 | * | |
| 19 | * This program is distributed in the hope that it will be useful, | |
| 20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 22 | * GNU General Public License for more details. | |
| 23 | * | |
| 24 | * You should have received a copy of the GNU General Public License | |
| 25 | * along with this program; if not, write to the Free Software | |
| 26 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
| 27 | * MA 02111-1307 USA | |
| 28 | */ | |
| 29 | ||
| 30 | #include <common.h> | |
| 31 | #include <command.h> | |
| 32 | #include <image.h> | |
| 33 | #include <u-boot/zlib.h> | |
| 34 | #include <asm/byteorder.h> | |
| 35 | ||
| 36 | DECLARE_GLOBAL_DATA_PTR; | |
| 37 | ||
| 38 | int do_bootm_linux(int flag, int argc, char * const argv[], | |
| 39 | bootm_headers_t *images) | |
| 40 | { | |
| 41 | void (*kernel) (unsigned int); | |
| 42 | ulong rd_data_start, rd_data_end; | |
| 43 | ||
| 44 | if ((flag != 0) && (flag != BOOTM_STATE_OS_GO)) | |
| 45 | return 1; | |
| 46 | ||
| 47 | int ret; | |
| 48 | ||
| 49 | char *of_flat_tree = NULL; | |
| 50 | #if defined(CONFIG_OF_LIBFDT) | |
| 51 | /* did generic code already find a device tree? */ | |
| 52 | if (images->ft_len) | |
| 53 | of_flat_tree = images->ft_addr; | |
| 54 | #endif | |
| 55 | ||
| 56 | kernel = (void (*)(unsigned int))images->ep; | |
| 57 | ||
| 58 | /* find ramdisk */ | |
| 59 | ret = boot_get_ramdisk(argc, argv, images, IH_ARCH_OPENRISC, | |
| 60 | &rd_data_start, &rd_data_end); | |
| 61 | if (ret) | |
| 62 | return 1; | |
| 63 | ||
| 64 | show_boot_progress(15); | |
| 65 | ||
| 983c72f4 SG |
66 | if (!of_flat_tree && argc > 1) |
| 67 | of_flat_tree = (char *)simple_strtoul(argv[1], NULL, 16); | |
| e0f1fd4c SK |
68 | #ifdef DEBUG |
| 69 | printf("## Transferring control to Linux (at address 0x%08lx) " \ | |
| 70 | "ramdisk 0x%08lx, FDT 0x%08lx...\n", | |
| 71 | (ulong) kernel, rd_data_start, (ulong) of_flat_tree); | |
| 72 | #endif | |
| 73 | if (dcache_status() || icache_status()) | |
| 74 | flush_cache((ulong)kernel, max(checkdcache(), checkicache())); | |
| 75 | ||
| 76 | /* | |
| 77 | * Linux Kernel Parameters (passing device tree): | |
| 78 | * r3: pointer to the fdt, followed by the board info data | |
| 79 | */ | |
| 80 | kernel((unsigned int) of_flat_tree); | |
| 81 | /* does not return */ | |
| 82 | ||
| 83 | return 1; | |
| 84 | } |