1 /* 2 * Copyright (C) 2011 3 * Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de> 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #include <common.h> 9 #include <command.h> 10 #include <cmd_spl.h> 11 12 DECLARE_GLOBAL_DATA_PTR; 13 14 static const char **subcmd_list[] = { 15 16 [SPL_EXPORT_FDT] = (const char * []) { 17 #ifdef CONFIG_OF_LIBFDT 18 "start", 19 "loados", 20 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH 21 "ramdisk", 22 #endif 23 "fdt", 24 "cmdline", 25 "bdt", 26 "prep", 27 #endif 28 NULL, 29 }, 30 [SPL_EXPORT_ATAGS] = (const char * []) { 31 #if defined(CONFIG_SETUP_MEMORY_TAGS) || \ 32 defined(CONFIG_CMDLINE_TAG) || \ 33 defined(CONFIG_INITRD_TAG) || \ 34 defined(CONFIG_SERIAL_TAG) || \ 35 defined(CONFIG_REVISION_TAG) 36 "start", 37 "loados", 38 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH 39 "ramdisk", 40 #endif 41 "cmdline", 42 "bdt", 43 "prep", 44 #endif 45 NULL, 46 }, 47 NULL 48 }; 49 50 /* Calls bootm with the parameters given */ 51 static int call_bootm(int argc, char * const argv[], const char *subcommand[]) 52 { 53 char *bootm_argv[5]; 54 55 int i = 0; 56 int ret = 0; 57 int j; 58 59 /* create paramter array */ 60 bootm_argv[0] = "do_bootm"; 61 switch (argc) { 62 case 3: 63 bootm_argv[4] = argv[2]; /* fdt addr */ 64 case 2: 65 bootm_argv[3] = argv[1]; /* initrd addr */ 66 case 1: 67 bootm_argv[2] = argv[0]; /* kernel addr */ 68 } 69 70 71 /* 72 * - do the work - 73 * exec subcommands of do_bootm to init the images 74 * data structure 75 */ 76 while (subcommand[i] != NULL) { 77 bootm_argv[1] = (char *)subcommand[i]; 78 debug("args %d: %s %s ", argc, bootm_argv[0], bootm_argv[1]); 79 for (j = 0; j < argc; j++) 80 debug("%s ", bootm_argv[j + 2]); 81 debug("\n"); 82 83 ret = do_bootm(find_cmd("do_bootm"), 0, argc+2, 84 bootm_argv); 85 debug("Subcommand retcode: %d\n", ret); 86 i++; 87 } 88 89 if (ret) { 90 printf("ERROR prep subcommand failed!\n"); 91 return -1; 92 } 93 94 return 0; 95 } 96 97 static cmd_tbl_t cmd_spl_export_sub[] = { 98 U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)SPL_EXPORT_FDT, "", ""), 99 U_BOOT_CMD_MKENT(atags, 0, 1, (void *)SPL_EXPORT_ATAGS, "", ""), 100 }; 101 102 static int spl_export(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 103 { 104 const cmd_tbl_t *c; 105 106 if (argc < 2) /* no subcommand */ 107 return cmd_usage(cmdtp); 108 109 c = find_cmd_tbl(argv[1], &cmd_spl_export_sub[0], 110 ARRAY_SIZE(cmd_spl_export_sub)); 111 if ((c) && ((int)c->cmd <= SPL_EXPORT_LAST)) { 112 argc -= 2; 113 argv += 2; 114 if (call_bootm(argc, argv, subcmd_list[(int)c->cmd])) 115 return -1; 116 switch ((int)c->cmd) { 117 #ifdef CONFIG_OF_LIBFDT 118 case SPL_EXPORT_FDT: 119 printf("Argument image is now in RAM: 0x%p\n", 120 (void *)images.ft_addr); 121 env_set_addr("fdtargsaddr", images.ft_addr); 122 env_set_hex("fdtargslen", fdt_totalsize(images.ft_addr)); 123 if (fdt_totalsize(images.ft_addr) > 124 CONFIG_CMD_SPL_WRITE_SIZE) 125 puts("WARN: FDT size > CMD_SPL_WRITE_SIZE\n"); 126 break; 127 #endif 128 case SPL_EXPORT_ATAGS: 129 printf("Argument image is now in RAM at: 0x%p\n", 130 (void *)gd->bd->bi_boot_params); 131 break; 132 } 133 } else { 134 /* Unrecognized command */ 135 return cmd_usage(cmdtp); 136 } 137 138 return 0; 139 } 140 141 static cmd_tbl_t cmd_spl_sub[] = { 142 U_BOOT_CMD_MKENT(export, 0, 1, (void *)SPL_EXPORT, "", ""), 143 }; 144 145 static int do_spl(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 146 { 147 const cmd_tbl_t *c; 148 int cmd; 149 150 if (argc < 2) /* no subcommand */ 151 return cmd_usage(cmdtp); 152 153 c = find_cmd_tbl(argv[1], &cmd_spl_sub[0], ARRAY_SIZE(cmd_spl_sub)); 154 if (c) { 155 cmd = (int)c->cmd; 156 switch (cmd) { 157 case SPL_EXPORT: 158 argc--; 159 argv++; 160 if (spl_export(cmdtp, flag, argc, argv)) 161 printf("Subcommand failed\n"); 162 break; 163 default: 164 /* unrecognized command */ 165 return cmd_usage(cmdtp); 166 } 167 } else { 168 /* Unrecognized command */ 169 return cmd_usage(cmdtp); 170 } 171 return 0; 172 } 173 174 U_BOOT_CMD( 175 spl, 6 , 1, do_spl, "SPL configuration", 176 "export <img=atags|fdt> [kernel_addr] [initrd_addr] [fdt_addr]\n" 177 "\timg\t\t\"atags\" or \"fdt\"\n" 178 "\tkernel_addr\taddress where a kernel image is stored.\n" 179 "\t\t\tkernel is loaded as part of the boot process, but it is not started.\n" 180 "\tinitrd_addr\taddress of initial ramdisk\n" 181 "\t\t\tcan be set to \"-\" if fdt_addr without initrd_addr is used.\n" 182 "\tfdt_addr\tin case of fdt, the address of the device tree.\n" 183 ); 184