3 * Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de>
5 * SPDX-License-Identifier: GPL-2.0+
11 #include <linux/libfdt.h>
13 DECLARE_GLOBAL_DATA_PTR;
15 static const char **subcmd_list[] = {
17 [SPL_EXPORT_FDT] = (const char * []) {
18 #ifdef CONFIG_OF_LIBFDT
21 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
31 [SPL_EXPORT_ATAGS] = (const char * []) {
32 #if defined(CONFIG_SETUP_MEMORY_TAGS) || \
33 defined(CONFIG_CMDLINE_TAG) || \
34 defined(CONFIG_INITRD_TAG) || \
35 defined(CONFIG_SERIAL_TAG) || \
36 defined(CONFIG_REVISION_TAG)
39 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
51 /* Calls bootm with the parameters given */
52 static int call_bootm(int argc, char * const argv[], const char *subcommand[])
60 /* create paramter array */
61 bootm_argv[0] = "do_bootm";
64 bootm_argv[4] = argv[2]; /* fdt addr */
66 bootm_argv[3] = argv[1]; /* initrd addr */
68 bootm_argv[2] = argv[0]; /* kernel addr */
74 * exec subcommands of do_bootm to init the images
77 while (subcommand[i] != NULL) {
78 bootm_argv[1] = (char *)subcommand[i];
79 debug("args %d: %s %s ", argc, bootm_argv[0], bootm_argv[1]);
80 for (j = 0; j < argc; j++)
81 debug("%s ", bootm_argv[j + 2]);
84 ret = do_bootm(find_cmd("do_bootm"), 0, argc+2,
86 debug("Subcommand retcode: %d\n", ret);
91 printf("ERROR prep subcommand failed!\n");
98 static cmd_tbl_t cmd_spl_export_sub[] = {
99 U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)SPL_EXPORT_FDT, "", ""),
100 U_BOOT_CMD_MKENT(atags, 0, 1, (void *)SPL_EXPORT_ATAGS, "", ""),
103 static int spl_export(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
107 if (argc < 2) /* no subcommand */
108 return cmd_usage(cmdtp);
110 c = find_cmd_tbl(argv[1], &cmd_spl_export_sub[0],
111 ARRAY_SIZE(cmd_spl_export_sub));
112 if ((c) && ((long)c->cmd <= SPL_EXPORT_LAST)) {
115 if (call_bootm(argc, argv, subcmd_list[(long)c->cmd]))
117 switch ((long)c->cmd) {
118 #ifdef CONFIG_OF_LIBFDT
120 printf("Argument image is now in RAM: 0x%p\n",
121 (void *)images.ft_addr);
122 env_set_addr("fdtargsaddr", images.ft_addr);
123 env_set_hex("fdtargslen", fdt_totalsize(images.ft_addr));
124 #ifdef CONFIG_CMD_SPL_WRITE_SIZE
125 if (fdt_totalsize(images.ft_addr) >
126 CONFIG_CMD_SPL_WRITE_SIZE)
127 puts("WARN: FDT size > CMD_SPL_WRITE_SIZE\n");
131 case SPL_EXPORT_ATAGS:
132 printf("Argument image is now in RAM at: 0x%p\n",
133 (void *)gd->bd->bi_boot_params);
137 /* Unrecognized command */
138 return cmd_usage(cmdtp);
144 static cmd_tbl_t cmd_spl_sub[] = {
145 U_BOOT_CMD_MKENT(export, 0, 1, (void *)SPL_EXPORT, "", ""),
148 static int do_spl(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
153 if (argc < 2) /* no subcommand */
154 return cmd_usage(cmdtp);
156 c = find_cmd_tbl(argv[1], &cmd_spl_sub[0], ARRAY_SIZE(cmd_spl_sub));
163 if (spl_export(cmdtp, flag, argc, argv))
164 printf("Subcommand failed\n");
167 /* unrecognized command */
168 return cmd_usage(cmdtp);
171 /* Unrecognized command */
172 return cmd_usage(cmdtp);
178 spl, 6 , 1, do_spl, "SPL configuration",
179 "export <img=atags|fdt> [kernel_addr] [initrd_addr] [fdt_addr]\n"
180 "\timg\t\t\"atags\" or \"fdt\"\n"
181 "\tkernel_addr\taddress where a kernel image is stored.\n"
182 "\t\t\tkernel is loaded as part of the boot process, but it is not started.\n"
183 "\tinitrd_addr\taddress of initial ramdisk\n"
184 "\t\t\tcan be set to \"-\" if fdt_addr without initrd_addr is used.\n"
185 "\tfdt_addr\tin case of fdt, the address of the device tree.\n"