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Diffstat (limited to 'common/cmd_spl.c')
| -rw-r--r-- | common/cmd_spl.c | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/common/cmd_spl.c b/common/cmd_spl.c new file mode 100644 index 000000000..9ec054af3 --- /dev/null +++ b/common/cmd_spl.c @@ -0,0 +1,188 @@ +/* + * Copyright (C) 2011 + * Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.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 <cmd_spl.h> + +DECLARE_GLOBAL_DATA_PTR; + +static const char **subcmd_list[] = { + + [SPL_EXPORT_FDT] = (const char * []) { +#ifdef CONFIG_OF_LIBFDT + "start", + "loados", + #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH + "ramdisk", + #endif + "fdt", + "cmdline", + "bdt", + "prep", +#endif + NULL, + }, + [SPL_EXPORT_ATAGS] = (const char * []) { +#if defined(CONFIG_SETUP_MEMORY_TAGS) || \ + defined(CONFIG_CMDLINE_TAG) || \ + defined(CONFIG_INITRD_TAG) || \ + defined(CONFIG_SERIAL_TAG) || \ + defined(CONFIG_REVISION_TAG) + "start", + "loados", +#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH + "ramdisk", +#endif + "cmdline", + "bdt", + "prep", +#endif + NULL, + }, + NULL +}; + +/* Calls bootm with the parameters given */ +static int call_bootm(int argc, char * const argv[], const char *subcommand[]) +{ + char *bootm_argv[5]; + + int i = 0; + int ret = 0; + int j; + + /* create paramter array */ + bootm_argv[0] = "do_bootm"; + switch (argc) { + case 3: + bootm_argv[4] = argv[2]; /* fdt addr */ + case 2: + bootm_argv[3] = argv[1]; /* initrd addr */ + case 1: + bootm_argv[2] = argv[0]; /* kernel addr */ + } + + + /* + * - do the work - + * exec subcommands of do_bootm to init the images + * data structure + */ + while (subcommand[i] != NULL) { + bootm_argv[1] = (char *)subcommand[i]; + debug("args %d: %s %s ", argc, bootm_argv[0], bootm_argv[1]); + for (j = 0; j < argc; j++) + debug("%s ", bootm_argv[j + 2]); + debug("\n"); + + ret = do_bootm(find_cmd("do_bootm"), 0, argc+2, + bootm_argv); + debug("Subcommand retcode: %d\n", ret); + i++; + } + + if (ret) { + printf("ERROR prep subcommand failed!\n"); + return -1; + } + + return 0; +} + +static cmd_tbl_t cmd_spl_export_sub[] = { + U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)SPL_EXPORT_FDT, "", ""), + U_BOOT_CMD_MKENT(atags, 0, 1, (void *)SPL_EXPORT_ATAGS, "", ""), +}; + +static int spl_export(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + const cmd_tbl_t *c; + + if (argc < 2) /* no subcommand */ + return cmd_usage(cmdtp); + + c = find_cmd_tbl(argv[1], &cmd_spl_export_sub[0], + ARRAY_SIZE(cmd_spl_export_sub)); + if ((c) && ((int)c->cmd <= SPL_EXPORT_LAST)) { + argc -= 2; + argv += 2; + if (call_bootm(argc, argv, subcmd_list[(int)c->cmd])) + return -1; + switch ((int)c->cmd) { + case SPL_EXPORT_FDT: + printf("Argument image is now in RAM: 0x%p\n", + (void *)images.ft_addr); + break; + case SPL_EXPORT_ATAGS: + printf("Argument image is now in RAM at: 0x%p\n", + (void *)gd->bd->bi_boot_params); + break; + } + } else { + /* Unrecognized command */ + return cmd_usage(cmdtp); + } + + return 0; +} + +static cmd_tbl_t cmd_spl_sub[] = { + U_BOOT_CMD_MKENT(export, 0, 1, (void *)SPL_EXPORT, "", ""), +}; + +static int do_spl(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + const cmd_tbl_t *c; + int cmd; + + if (argc < 2) /* no subcommand */ + return cmd_usage(cmdtp); + + c = find_cmd_tbl(argv[1], &cmd_spl_sub[0], ARRAY_SIZE(cmd_spl_sub)); + if (c) { + cmd = (int)c->cmd; + switch (cmd) { + case SPL_EXPORT: + argc--; + argv++; + if (spl_export(cmdtp, flag, argc, argv)) + printf("Subcommand failed\n"); + break; + default: + /* unrecognized command */ + return cmd_usage(cmdtp); + } + } else { + /* Unrecognized command */ + return cmd_usage(cmdtp); + } + return 0; +} + +U_BOOT_CMD( + spl, 6 , 1, do_spl, "SPL configuration", + "export <img=atags|fdt> [kernel_addr] [initrd_addr] " + "[fdt_addr if <img> = fdt] - export a kernel parameter image\n" + "\t initrd_img can be set to \"-\" if fdt_addr without initrd img is" + "used"); |