mirror of
https://github.com/brain-hackers/u-boot-brain
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190 lines
4.2 KiB
C
190 lines
4.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2011
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* Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de>
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*/
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#include <common.h>
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#include <command.h>
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#include <cmd_spl.h>
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#include <env.h>
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#include <image.h>
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#include <log.h>
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#include <linux/libfdt.h>
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DECLARE_GLOBAL_DATA_PTR;
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static const char **subcmd_list[] = {
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[SPL_EXPORT_FDT] = (const char * []) {
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#ifdef CONFIG_OF_LIBFDT
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"start",
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"loados",
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#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
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"ramdisk",
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#endif
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"fdt",
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"cmdline",
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"bdt",
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"prep",
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#endif
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NULL,
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},
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[SPL_EXPORT_ATAGS] = (const char * []) {
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#if defined(CONFIG_SETUP_MEMORY_TAGS) || \
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defined(CONFIG_CMDLINE_TAG) || \
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defined(CONFIG_INITRD_TAG) || \
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defined(CONFIG_SERIAL_TAG) || \
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defined(CONFIG_REVISION_TAG)
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"start",
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"loados",
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#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
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"ramdisk",
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#endif
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"cmdline",
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"bdt",
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"prep",
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#endif
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NULL,
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},
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NULL
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};
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/* Calls bootm with the parameters given */
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static int call_bootm(int argc, char *const argv[], const char *subcommand[])
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{
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char *bootm_argv[5];
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int i = 0;
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int ret = 0;
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int j;
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/* create paramter array */
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bootm_argv[0] = "do_bootm";
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switch (argc) {
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case 3:
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bootm_argv[4] = argv[2]; /* fdt addr */
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case 2:
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bootm_argv[3] = argv[1]; /* initrd addr */
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case 1:
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bootm_argv[2] = argv[0]; /* kernel addr */
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}
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/*
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* - do the work -
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* exec subcommands of do_bootm to init the images
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* data structure
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*/
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while (subcommand[i] != NULL) {
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bootm_argv[1] = (char *)subcommand[i];
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debug("args %d: %s %s ", argc, bootm_argv[0], bootm_argv[1]);
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for (j = 0; j < argc; j++)
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debug("%s ", bootm_argv[j + 2]);
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debug("\n");
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ret = do_bootm(find_cmd("do_bootm"), 0, argc+2,
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bootm_argv);
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debug("Subcommand retcode: %d\n", ret);
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i++;
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}
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if (ret) {
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printf("ERROR prep subcommand failed!\n");
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return -1;
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}
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return 0;
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}
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static struct cmd_tbl cmd_spl_export_sub[] = {
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U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)SPL_EXPORT_FDT, "", ""),
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U_BOOT_CMD_MKENT(atags, 0, 1, (void *)SPL_EXPORT_ATAGS, "", ""),
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};
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static int spl_export(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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const struct cmd_tbl *c;
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if (argc < 2) /* no subcommand */
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return cmd_usage(cmdtp);
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c = find_cmd_tbl(argv[1], &cmd_spl_export_sub[0],
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ARRAY_SIZE(cmd_spl_export_sub));
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if ((c) && ((long)c->cmd <= SPL_EXPORT_LAST)) {
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argc -= 2;
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argv += 2;
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if (call_bootm(argc, argv, subcmd_list[(long)c->cmd]))
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return -1;
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switch ((long)c->cmd) {
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#ifdef CONFIG_OF_LIBFDT
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case SPL_EXPORT_FDT:
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printf("Argument image is now in RAM: 0x%p\n",
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(void *)images.ft_addr);
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env_set_addr("fdtargsaddr", images.ft_addr);
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env_set_hex("fdtargslen", fdt_totalsize(images.ft_addr));
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#ifdef CONFIG_CMD_SPL_WRITE_SIZE
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if (fdt_totalsize(images.ft_addr) >
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CONFIG_CMD_SPL_WRITE_SIZE)
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puts("WARN: FDT size > CMD_SPL_WRITE_SIZE\n");
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#endif
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break;
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#endif
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case SPL_EXPORT_ATAGS:
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printf("Argument image is now in RAM at: 0x%p\n",
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(void *)gd->bd->bi_boot_params);
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break;
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}
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} else {
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/* Unrecognized command */
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return cmd_usage(cmdtp);
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}
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return 0;
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}
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static struct cmd_tbl cmd_spl_sub[] = {
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U_BOOT_CMD_MKENT(export, 0, 1, (void *)SPL_EXPORT, "", ""),
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};
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static int do_spl(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
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{
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const struct cmd_tbl *c;
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int cmd;
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if (argc < 2) /* no subcommand */
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return cmd_usage(cmdtp);
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c = find_cmd_tbl(argv[1], &cmd_spl_sub[0], ARRAY_SIZE(cmd_spl_sub));
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if (c) {
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cmd = (long)c->cmd;
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switch (cmd) {
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case SPL_EXPORT:
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argc--;
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argv++;
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if (spl_export(cmdtp, flag, argc, argv))
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printf("Subcommand failed\n");
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break;
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default:
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/* unrecognized command */
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return cmd_usage(cmdtp);
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}
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} else {
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/* Unrecognized command */
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return cmd_usage(cmdtp);
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}
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return 0;
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}
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U_BOOT_CMD(
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spl, 6 , 1, do_spl, "SPL configuration",
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"export <img=atags|fdt> [kernel_addr] [initrd_addr] [fdt_addr]\n"
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"\timg\t\t\"atags\" or \"fdt\"\n"
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"\tkernel_addr\taddress where a kernel image is stored.\n"
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"\t\t\tkernel is loaded as part of the boot process, but it is not started.\n"
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"\tinitrd_addr\taddress of initial ramdisk\n"
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"\t\t\tcan be set to \"-\" if fdt_addr without initrd_addr is used.\n"
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"\tfdt_addr\tin case of fdt, the address of the device tree.\n"
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);
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