projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 507bbe3e | 1 | /* |
| cfc67116 | 2 | * (C) Copyright 2007 Michal Simek |
| 507bbe3e WD |
3 | * (C) Copyright 2004 Atmark Techno, Inc. |
| 4 | * | |
| cfc67116 | 5 | * Michal SIMEK <monstr@monstr.eu> |
| 507bbe3e WD |
6 | * Yasushi SHOJI <yashi@atmark-techno.com> |
| 7 | * | |
| 1a459660 | 8 | * SPDX-License-Identifier: GPL-2.0+ |
| 507bbe3e WD |
9 | */ |
| 10 | ||
| 11 | #include <common.h> | |
| 12 | #include <command.h> | |
| cfc67116 | 13 | #include <image.h> |
| a31e091a | 14 | #include <u-boot/zlib.h> |
| cfc67116 | 15 | #include <asm/byteorder.h> |
| 507bbe3e | 16 | |
| cfc67116 MS |
17 | DECLARE_GLOBAL_DATA_PTR; |
| 18 | ||
| 1e71fa43 MS |
19 | int do_bootm_linux(int flag, int argc, char * const argv[], |
| 20 | bootm_headers_t *images) | |
| 507bbe3e | 21 | { |
| cfc67116 | 22 | /* First parameter is mapped to $r5 for kernel boot args */ |
| 1e71fa43 MS |
23 | void (*thekernel) (char *, ulong, ulong); |
| 24 | char *commandline = getenv("bootargs"); | |
| 398b1d57 | 25 | ulong rd_data_start, rd_data_end; |
| cfc67116 | 26 | |
| 2cb0e55a AB |
27 | /* |
| 28 | * allow the PREP bootm subcommand, it is required for bootm to work | |
| 29 | */ | |
| 30 | if (flag & BOOTM_STATE_OS_PREP) | |
| 31 | return 0; | |
| 32 | ||
| 49c3a861 KG |
33 | if ((flag != 0) && (flag != BOOTM_STATE_OS_GO)) |
| 34 | return 1; | |
| 35 | ||
| 398b1d57 AB |
36 | int ret; |
| 37 | ||
| 38 | char *of_flat_tree = NULL; | |
| 39 | #if defined(CONFIG_OF_LIBFDT) | |
| 5a75e121 JR |
40 | /* did generic code already find a device tree? */ |
| 41 | if (images->ft_len) | |
| 42 | of_flat_tree = images->ft_addr; | |
| 398b1d57 AB |
43 | #endif |
| 44 | ||
| 1e71fa43 | 45 | thekernel = (void (*)(char *, ulong, ulong))images->ep; |
| 398b1d57 AB |
46 | |
| 47 | /* find ramdisk */ | |
| 1e71fa43 | 48 | ret = boot_get_ramdisk(argc, argv, images, IH_ARCH_MICROBLAZE, |
| 398b1d57 AB |
49 | &rd_data_start, &rd_data_end); |
| 50 | if (ret) | |
| 51 | return 1; | |
| cfc67116 | 52 | |
| 770605e4 | 53 | bootstage_mark(BOOTSTAGE_ID_RUN_OS); |
| cfc67116 | 54 | |
| 983c72f4 SG |
55 | if (!of_flat_tree && argc > 1) |
| 56 | of_flat_tree = (char *)simple_strtoul(argv[1], NULL, 16); | |
| a8425d52 MS |
57 | |
| 58 | /* fixup the initrd now that we know where it should be */ | |
| 59 | if (images->rd_start && images->rd_end && of_flat_tree) | |
| 60 | ret = fdt_initrd(of_flat_tree, images->rd_start, | |
| 61 | images->rd_end, 1); | |
| 62 | if (ret) | |
| 63 | return 1; | |
| 64 | ||
| cfc67116 | 65 | #ifdef DEBUG |
| 1e71fa43 MS |
66 | printf("## Transferring control to Linux (at address 0x%08lx) ", |
| 67 | (ulong)thekernel); | |
| 68 | printf("ramdisk 0x%08lx, FDT 0x%08lx...\n", | |
| 69 | rd_data_start, (ulong) of_flat_tree); | |
| cfc67116 MS |
70 | #endif |
| 71 | ||
| 9b4d9056 | 72 | #ifdef XILINX_USE_DCACHE |
| 9b4d9056 | 73 | flush_cache(0, XILINX_DCACHE_BYTE_SIZE); |
| 9b4d9056 | 74 | #endif |
| 398b1d57 AB |
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 | */ | |
| 1e71fa43 | 81 | thekernel(commandline, rd_data_start, (ulong)of_flat_tree); |
| cd7c596e | 82 | /* does not return */ |
| a3a08c0c | 83 | |
| 40d7e99d | 84 | return 1; |
| 507bbe3e | 85 | } |