wdenk | 1249065 | 2004-04-18 21:13:41 +0000 | [diff] [blame] | 1 | /* |
Michal Simek | 922ce20 | 2007-03-11 13:48:24 +0100 | [diff] [blame] | 2 | * (C) Copyright 2007 Michal Simek |
wdenk | 1249065 | 2004-04-18 21:13:41 +0000 | [diff] [blame] | 3 | * (C) Copyright 2004 Atmark Techno, Inc. |
| 4 | * |
Michal Simek | 922ce20 | 2007-03-11 13:48:24 +0100 | [diff] [blame] | 5 | * Michal SIMEK <monstr@monstr.eu> |
wdenk | 1249065 | 2004-04-18 21:13:41 +0000 | [diff] [blame] | 6 | * Yasushi SHOJI <yashi@atmark-techno.com> |
| 7 | * |
| 8 | * See file CREDITS for list of people who contributed to this |
| 9 | * project. |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or |
| 12 | * modify it under the terms of the GNU General Public License as |
| 13 | * published by the Free Software Foundation; either version 2 of |
| 14 | * the License, or (at your option) any later version. |
| 15 | * |
| 16 | * This program is distributed in the hope that it will be useful, |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
Michal Simek | 922ce20 | 2007-03-11 13:48:24 +0100 | [diff] [blame] | 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
wdenk | 1249065 | 2004-04-18 21:13:41 +0000 | [diff] [blame] | 19 | * GNU General Public License for more details. |
| 20 | * |
| 21 | * You should have received a copy of the GNU General Public License |
| 22 | * along with this program; if not, write to the Free Software |
| 23 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 24 | * MA 02111-1307 USA |
| 25 | */ |
| 26 | |
| 27 | #include <common.h> |
| 28 | #include <command.h> |
Michal Simek | 922ce20 | 2007-03-11 13:48:24 +0100 | [diff] [blame] | 29 | #include <image.h> |
Jean-Christophe PLAGNIOL-VILLARD | 6bb9449 | 2009-04-04 12:49:11 +0200 | [diff] [blame] | 30 | #include <u-boot/zlib.h> |
Michal Simek | 922ce20 | 2007-03-11 13:48:24 +0100 | [diff] [blame] | 31 | #include <asm/byteorder.h> |
wdenk | 1249065 | 2004-04-18 21:13:41 +0000 | [diff] [blame] | 32 | |
Michal Simek | 922ce20 | 2007-03-11 13:48:24 +0100 | [diff] [blame] | 33 | DECLARE_GLOBAL_DATA_PTR; |
| 34 | |
Wolfgang Denk | 6262d021 | 2010-06-28 22:00:46 +0200 | [diff] [blame] | 35 | int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images) |
wdenk | 1249065 | 2004-04-18 21:13:41 +0000 | [diff] [blame] | 36 | { |
Michal Simek | 922ce20 | 2007-03-11 13:48:24 +0100 | [diff] [blame] | 37 | /* First parameter is mapped to $r5 for kernel boot args */ |
Arun Bhanu | 2304c05 | 2010-04-15 18:27:17 +0800 | [diff] [blame] | 38 | void (*theKernel) (char *, ulong, ulong); |
Marian Balakowicz | dbdd16a | 2008-02-04 08:28:09 +0100 | [diff] [blame] | 39 | char *commandline = getenv ("bootargs"); |
Arun Bhanu | 2304c05 | 2010-04-15 18:27:17 +0800 | [diff] [blame] | 40 | ulong rd_data_start, rd_data_end; |
Michal Simek | 922ce20 | 2007-03-11 13:48:24 +0100 | [diff] [blame] | 41 | |
Kumar Gala | 18178bc | 2008-10-21 17:25:45 -0500 | [diff] [blame] | 42 | if ((flag != 0) && (flag != BOOTM_STATE_OS_GO)) |
| 43 | return 1; |
| 44 | |
Arun Bhanu | 2304c05 | 2010-04-15 18:27:17 +0800 | [diff] [blame] | 45 | int ret; |
| 46 | |
| 47 | char *of_flat_tree = NULL; |
| 48 | #if defined(CONFIG_OF_LIBFDT) |
John Rigby | 708e667 | 2010-10-13 13:57:34 -0600 | [diff] [blame] | 49 | /* did generic code already find a device tree? */ |
| 50 | if (images->ft_len) |
| 51 | of_flat_tree = images->ft_addr; |
Arun Bhanu | 2304c05 | 2010-04-15 18:27:17 +0800 | [diff] [blame] | 52 | #endif |
| 53 | |
| 54 | theKernel = (void (*)(char *, ulong, ulong))images->ep; |
| 55 | |
| 56 | /* find ramdisk */ |
| 57 | ret = boot_get_ramdisk (argc, argv, images, IH_ARCH_MICROBLAZE, |
| 58 | &rd_data_start, &rd_data_end); |
| 59 | if (ret) |
| 60 | return 1; |
Michal Simek | 922ce20 | 2007-03-11 13:48:24 +0100 | [diff] [blame] | 61 | |
Simon Glass | 0169e6b | 2012-02-13 13:51:18 +0000 | [diff] [blame] | 62 | bootstage_mark(BOOTSTAGE_ID_RUN_OS); |
Michal Simek | 922ce20 | 2007-03-11 13:48:24 +0100 | [diff] [blame] | 63 | |
John Rigby | 708e667 | 2010-10-13 13:57:34 -0600 | [diff] [blame] | 64 | if (!of_flat_tree && argc > 3) |
| 65 | of_flat_tree = (char *)simple_strtoul(argv[3], NULL, 16); |
Michal Simek | 922ce20 | 2007-03-11 13:48:24 +0100 | [diff] [blame] | 66 | #ifdef DEBUG |
Arun Bhanu | 2304c05 | 2010-04-15 18:27:17 +0800 | [diff] [blame] | 67 | printf ("## Transferring control to Linux (at address 0x%08lx) " \ |
| 68 | "ramdisk 0x%08lx, FDT 0x%08lx...\n", |
| 69 | (ulong) theKernel, rd_data_start, (ulong) of_flat_tree); |
Michal Simek | 922ce20 | 2007-03-11 13:48:24 +0100 | [diff] [blame] | 70 | #endif |
| 71 | |
Michal Simek | 80c42c7 | 2010-04-16 12:01:32 +0200 | [diff] [blame] | 72 | #ifdef XILINX_USE_DCACHE |
Michal Simek | 80c42c7 | 2010-04-16 12:01:32 +0200 | [diff] [blame] | 73 | flush_cache(0, XILINX_DCACHE_BYTE_SIZE); |
Michal Simek | 80c42c7 | 2010-04-16 12:01:32 +0200 | [diff] [blame] | 74 | #endif |
Arun Bhanu | 2304c05 | 2010-04-15 18:27:17 +0800 | [diff] [blame] | 75 | /* |
| 76 | * Linux Kernel Parameters (passing device tree): |
| 77 | * r5: pointer to command line |
| 78 | * r6: pointer to ramdisk |
| 79 | * r7: pointer to the fdt, followed by the board info data |
| 80 | */ |
| 81 | theKernel (commandline, rd_data_start, (ulong) of_flat_tree); |
Marian Balakowicz | df8ff33 | 2008-03-12 10:33:00 +0100 | [diff] [blame] | 82 | /* does not return */ |
Jean-Christophe PLAGNIOL-VILLARD | 7ed7a27 | 2008-09-10 22:48:09 +0200 | [diff] [blame] | 83 | |
Kumar Gala | 48626aa | 2008-08-15 08:24:45 -0500 | [diff] [blame] | 84 | return 1; |
wdenk | 1249065 | 2004-04-18 21:13:41 +0000 | [diff] [blame] | 85 | } |