[u-boot.git] / cmd / spl.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2011
 * Corscience GmbH & Co. KG - Simon Schwarz <[email protected]>
 */

#include <common.h>
#include <command.h>
#include <cmd_spl.h>
#include <env.h>
#include <image.h>
#include <log.h>
#include <linux/libfdt.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 struct cmd_tbl 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(struct cmd_tbl *cmdtp, int flag, int argc,
		      char *const argv[])
{
	const struct cmd_tbl *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) && ((long)c->cmd <= SPL_EXPORT_LAST)) {
		argc -= 2;
		argv += 2;
		if (call_bootm(argc, argv, subcmd_list[(long)c->cmd]))
			return -1;
		switch ((long)c->cmd) {
#ifdef CONFIG_OF_LIBFDT
		case SPL_EXPORT_FDT:
			printf("Argument image is now in RAM: 0x%p\n",
				(void *)images.ft_addr);
			env_set_addr("fdtargsaddr", images.ft_addr);
			env_set_hex("fdtargslen", fdt_totalsize(images.ft_addr));
#ifdef CONFIG_CMD_SPL_WRITE_SIZE
			if (fdt_totalsize(images.ft_addr) >
			    CONFIG_CMD_SPL_WRITE_SIZE)
				puts("WARN: FDT size > CMD_SPL_WRITE_SIZE\n");
#endif
			break;
#endif
		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 struct cmd_tbl cmd_spl_sub[] = {
	U_BOOT_CMD_MKENT(export, 0, 1, (void *)SPL_EXPORT, "", ""),
};

static int do_spl(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
	const struct cmd_tbl *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 = (long)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]\n"
	"\timg\t\t\"atags\" or \"fdt\"\n"
	"\tkernel_addr\taddress where a kernel image is stored.\n"
	"\t\t\tkernel is loaded as part of the boot process, but it is not started.\n"
	"\tinitrd_addr\taddress of initial ramdisk\n"
	"\t\t\tcan be set to \"-\" if fdt_addr without initrd_addr is used.\n"
	"\tfdt_addr\tin case of fdt, the address of the device tree.\n"
	);
Commit	Line	Data
83d290c5	1	// SPDX-License-Identifier: GPL-2.0+
1648a375 SS	2	/*
	3	* Copyright (C) 2011
	4	* Corscience GmbH & Co. KG - Simon Schwarz <[email protected]>
1648a375 SS	5	*/
	6
	7	#include <common.h>
	8	#include <command.h>
	9	#include <cmd_spl.h>
c7694dd4	10	#include <env.h>
4d72caa5	11	#include <image.h>
f7ae49fc	12	#include <log.h>
b08c8c48	13	#include <linux/libfdt.h>
1648a375 SS	14
	15	DECLARE_GLOBAL_DATA_PTR;
	16
	17	static const char **subcmd_list[] = {
	18
	19	[SPL_EXPORT_FDT] = (const char * []) {
	20	#ifdef CONFIG_OF_LIBFDT
	21	"start",
	22	"loados",
	23	#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
	24	"ramdisk",
	25	#endif
	26	"fdt",
	27	"cmdline",
	28	"bdt",
	29	"prep",
	30	#endif
	31	NULL,
	32	},
	33	[SPL_EXPORT_ATAGS] = (const char * []) {
	34	#if defined(CONFIG_SETUP_MEMORY_TAGS) \|\| \
	35	defined(CONFIG_CMDLINE_TAG) \|\| \
	36	defined(CONFIG_INITRD_TAG) \|\| \
	37	defined(CONFIG_SERIAL_TAG) \|\| \
	38	defined(CONFIG_REVISION_TAG)
	39	"start",
	40	"loados",
	41	#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
	42	"ramdisk",
	43	#endif
	44	"cmdline",
	45	"bdt",
	46	"prep",
	47	#endif
	48	NULL,
	49	},
	50	NULL
	51	};
	52
	53	/* Calls bootm with the parameters given */
09140113	54	static int call_bootm(int argc, char const argv[], const char subcommand[])
1648a375 SS	55	{
	56	char *bootm_argv[5];
	57
	58	int i = 0;
	59	int ret = 0;
	60	int j;
	61
	62	/* create paramter array */
	63	bootm_argv[0] = "do_bootm";
	64	switch (argc) {
	65	case 3:
	66	bootm_argv[4] = argv[2]; /* fdt addr */
	67	case 2:
	68	bootm_argv[3] = argv[1]; /* initrd addr */
	69	case 1:
	70	bootm_argv[2] = argv[0]; /* kernel addr */
	71	}
	72
	73
	74	/*
	75	* - do the work -
	76	* exec subcommands of do_bootm to init the images
	77	* data structure
	78	*/
	79	while (subcommand[i] != NULL) {
	80	bootm_argv[1] = (char *)subcommand[i];
	81	debug("args %d: %s %s ", argc, bootm_argv[0], bootm_argv[1]);
	82	for (j = 0; j < argc; j++)
	83	debug("%s ", bootm_argv[j + 2]);
	84	debug("\n");
	85
	86	ret = do_bootm(find_cmd("do_bootm"), 0, argc+2,
	87	bootm_argv);
	88	debug("Subcommand retcode: %d\n", ret);
	89	i++;
	90	}
	91
	92	if (ret) {
	93	printf("ERROR prep subcommand failed!\n");
	94	return -1;
	95	}
	96
	97	return 0;
	98	}
	99
09140113	100	static struct cmd_tbl cmd_spl_export_sub[] = {
1648a375 SS	101	U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)SPL_EXPORT_FDT, "", ""),
	102	U_BOOT_CMD_MKENT(atags, 0, 1, (void *)SPL_EXPORT_ATAGS, "", ""),
	103	};
	104
09140113 SG	105	static int spl_export(struct cmd_tbl *cmdtp, int flag, int argc,
09140113 SG	106	char *const argv[])
1648a375	107	{
09140113	108	const struct cmd_tbl *c;
1648a375 SS	109
	110	if (argc < 2) /* no subcommand */
	111	return cmd_usage(cmdtp);
	112
	113	c = find_cmd_tbl(argv[1], &cmd_spl_export_sub[0],
	114	ARRAY_SIZE(cmd_spl_export_sub));
d1f2ee70	115	if ((c) && ((long)c->cmd <= SPL_EXPORT_LAST)) {
1648a375 SS	116	argc -= 2;
1648a375 SS	117	argv += 2;
d1f2ee70	118	if (call_bootm(argc, argv, subcmd_list[(long)c->cmd]))
1648a375	119	return -1;
d1f2ee70	120	switch ((long)c->cmd) {
bf3d58bb	121	#ifdef CONFIG_OF_LIBFDT
1648a375 SS	122	case SPL_EXPORT_FDT:
	123	printf("Argument image is now in RAM: 0x%p\n",
	124	(void *)images.ft_addr);
767cb74a AG	125	env_set_addr("fdtargsaddr", images.ft_addr);
767cb74a AG	126	env_set_hex("fdtargslen", fdt_totalsize(images.ft_addr));
b65ac633	127	#ifdef CONFIG_CMD_SPL_WRITE_SIZE
767cb74a AG	128	if (fdt_totalsize(images.ft_addr) >
	129	CONFIG_CMD_SPL_WRITE_SIZE)
	130	puts("WARN: FDT size > CMD_SPL_WRITE_SIZE\n");
b65ac633	131	#endif
1648a375	132	break;
bf3d58bb	133	#endif
1648a375 SS	134	case SPL_EXPORT_ATAGS:
	135	printf("Argument image is now in RAM at: 0x%p\n",
	136	(void *)gd->bd->bi_boot_params);
	137	break;
	138	}
	139	} else {
	140	/* Unrecognized command */
	141	return cmd_usage(cmdtp);
	142	}
	143
	144	return 0;
	145	}
	146
09140113	147	static struct cmd_tbl cmd_spl_sub[] = {
1648a375 SS	148	U_BOOT_CMD_MKENT(export, 0, 1, (void *)SPL_EXPORT, "", ""),
	149	};
	150
09140113	151	static int do_spl(struct cmd_tbl cmdtp, int flag, int argc, char const argv[])
1648a375	152	{
09140113	153	const struct cmd_tbl *c;
1648a375 SS	154	int cmd;
	155
	156	if (argc < 2) /* no subcommand */
	157	return cmd_usage(cmdtp);
	158
	159	c = find_cmd_tbl(argv[1], &cmd_spl_sub[0], ARRAY_SIZE(cmd_spl_sub));
	160	if (c) {
d1f2ee70	161	cmd = (long)c->cmd;
1648a375 SS	162	switch (cmd) {
	163	case SPL_EXPORT:
	164	argc--;
	165	argv++;
	166	if (spl_export(cmdtp, flag, argc, argv))
	167	printf("Subcommand failed\n");
	168	break;
	169	default:
	170	/* unrecognized command */
	171	return cmd_usage(cmdtp);
	172	}
	173	} else {
	174	/* Unrecognized command */
	175	return cmd_usage(cmdtp);
	176	}
	177	return 0;
	178	}
	179
	180	U_BOOT_CMD(
	181	spl, 6 , 1, do_spl, "SPL configuration",
28786eb9 SB	182	"export <img=atags\|fdt> [kernel_addr] [initrd_addr] [fdt_addr]\n"
	183	"\timg\t\t\"atags\" or \"fdt\"\n"
	184	"\tkernel_addr\taddress where a kernel image is stored.\n"
	185	"\t\t\tkernel is loaded as part of the boot process, but it is not started.\n"
	186	"\tinitrd_addr\taddress of initial ramdisk\n"
	187	"\t\t\tcan be set to \"-\" if fdt_addr without initrd_addr is used.\n"
	188	"\tfdt_addr\tin case of fdt, the address of the device tree.\n"
	189	);