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https://github.com/brain-hackers/u-boot-brain
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![Tom Rini](/assets/img/avatar_default.png)
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
186 lines
4.1 KiB
C
186 lines
4.1 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 <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 cmd_tbl_t 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(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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const cmd_tbl_t *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 cmd_tbl_t 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(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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const cmd_tbl_t *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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