[J-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 <asm/global_data.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>
401d1c4f	13	#include <asm/global_data.h>
b08c8c48	14	#include <linux/libfdt.h>
1648a375 SS	15
	16	DECLARE_GLOBAL_DATA_PTR;
	17
	18	static const char **subcmd_list[] = {
	19
	20	[SPL_EXPORT_FDT] = (const char * []) {
	21	#ifdef CONFIG_OF_LIBFDT
	22	"start",
	23	"loados",
	24	#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
	25	"ramdisk",
	26	#endif
	27	"fdt",
	28	"cmdline",
	29	"bdt",
	30	"prep",
	31	#endif
	32	NULL,
	33	},
	34	[SPL_EXPORT_ATAGS] = (const char * []) {
	35	#if defined(CONFIG_SETUP_MEMORY_TAGS) \|\| \
	36	defined(CONFIG_CMDLINE_TAG) \|\| \
	37	defined(CONFIG_INITRD_TAG) \|\| \
	38	defined(CONFIG_SERIAL_TAG) \|\| \
	39	defined(CONFIG_REVISION_TAG)
	40	"start",
	41	"loados",
	42	#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
	43	"ramdisk",
	44	#endif
	45	"cmdline",
	46	"bdt",
	47	"prep",
	48	#endif
	49	NULL,
	50	},
	51	NULL
	52	};
	53
	54	/* Calls bootm with the parameters given */
09140113	55	static int call_bootm(int argc, char const argv[], const char subcommand[])
1648a375 SS	56	{
	57	char *bootm_argv[5];
	58
	59	int i = 0;
	60	int ret = 0;
	61	int j;
	62
	63	/* create paramter array */
	64	bootm_argv[0] = "do_bootm";
	65	switch (argc) {
	66	case 3:
	67	bootm_argv[4] = argv[2]; /* fdt addr */
	68	case 2:
	69	bootm_argv[3] = argv[1]; /* initrd addr */
	70	case 1:
	71	bootm_argv[2] = argv[0]; /* kernel addr */
	72	}
	73
	74
	75	/*
	76	* - do the work -
	77	* exec subcommands of do_bootm to init the images
	78	* data structure
	79	*/
	80	while (subcommand[i] != NULL) {
	81	bootm_argv[1] = (char *)subcommand[i];
	82	debug("args %d: %s %s ", argc, bootm_argv[0], bootm_argv[1]);
	83	for (j = 0; j < argc; j++)
	84	debug("%s ", bootm_argv[j + 2]);
	85	debug("\n");
	86
	87	ret = do_bootm(find_cmd("do_bootm"), 0, argc+2,
	88	bootm_argv);
	89	debug("Subcommand retcode: %d\n", ret);
	90	i++;
	91	}
	92
	93	if (ret) {
	94	printf("ERROR prep subcommand failed!\n");
	95	return -1;
	96	}
	97
	98	return 0;
	99	}
	100
09140113	101	static struct cmd_tbl cmd_spl_export_sub[] = {
1648a375 SS	102	U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)SPL_EXPORT_FDT, "", ""),
	103	U_BOOT_CMD_MKENT(atags, 0, 1, (void *)SPL_EXPORT_ATAGS, "", ""),
	104	};
	105
09140113 SG	106	static int spl_export(struct cmd_tbl *cmdtp, int flag, int argc,
09140113 SG	107	char *const argv[])
1648a375	108	{
09140113	109	const struct cmd_tbl *c;
1648a375 SS	110
	111	if (argc < 2) /* no subcommand */
	112	return cmd_usage(cmdtp);
	113
	114	c = find_cmd_tbl(argv[1], &cmd_spl_export_sub[0],
	115	ARRAY_SIZE(cmd_spl_export_sub));
d1f2ee70	116	if ((c) && ((long)c->cmd <= SPL_EXPORT_LAST)) {
1648a375 SS	117	argc -= 2;
1648a375 SS	118	argv += 2;
d1f2ee70	119	if (call_bootm(argc, argv, subcmd_list[(long)c->cmd]))
1648a375	120	return -1;
d1f2ee70	121	switch ((long)c->cmd) {
bf3d58bb	122	#ifdef CONFIG_OF_LIBFDT
1648a375 SS	123	case SPL_EXPORT_FDT:
	124	printf("Argument image is now in RAM: 0x%p\n",
	125	(void *)images.ft_addr);
767cb74a AG	126	env_set_addr("fdtargsaddr", images.ft_addr);
767cb74a AG	127	env_set_hex("fdtargslen", fdt_totalsize(images.ft_addr));
b65ac633	128	#ifdef CONFIG_CMD_SPL_WRITE_SIZE
767cb74a AG	129	if (fdt_totalsize(images.ft_addr) >
	130	CONFIG_CMD_SPL_WRITE_SIZE)
	131	puts("WARN: FDT size > CMD_SPL_WRITE_SIZE\n");
b65ac633	132	#endif
1648a375	133	break;
bf3d58bb	134	#endif
1648a375 SS	135	case SPL_EXPORT_ATAGS:
	136	printf("Argument image is now in RAM at: 0x%p\n",
	137	(void *)gd->bd->bi_boot_params);
	138	break;
	139	}
	140	} else {
	141	/* Unrecognized command */
	142	return cmd_usage(cmdtp);
	143	}
	144
	145	return 0;
	146	}
	147
09140113	148	static struct cmd_tbl cmd_spl_sub[] = {
1648a375 SS	149	U_BOOT_CMD_MKENT(export, 0, 1, (void *)SPL_EXPORT, "", ""),
	150	};
	151
09140113	152	static int do_spl(struct cmd_tbl cmdtp, int flag, int argc, char const argv[])
1648a375	153	{
09140113	154	const struct cmd_tbl *c;
1648a375 SS	155	int cmd;
	156
	157	if (argc < 2) /* no subcommand */
	158	return cmd_usage(cmdtp);
	159
	160	c = find_cmd_tbl(argv[1], &cmd_spl_sub[0], ARRAY_SIZE(cmd_spl_sub));
	161	if (c) {
d1f2ee70	162	cmd = (long)c->cmd;
1648a375 SS	163	switch (cmd) {
	164	case SPL_EXPORT:
	165	argc--;
	166	argv++;
	167	if (spl_export(cmdtp, flag, argc, argv))
	168	printf("Subcommand failed\n");
	169	break;
	170	default:
	171	/* unrecognized command */
	172	return cmd_usage(cmdtp);
	173	}
	174	} else {
	175	/* Unrecognized command */
	176	return cmd_usage(cmdtp);
	177	}
	178	return 0;
	179	}
	180
	181	U_BOOT_CMD(
	182	spl, 6 , 1, do_spl, "SPL configuration",
28786eb9 SB	183	"export <img=atags\|fdt> [kernel_addr] [initrd_addr] [fdt_addr]\n"
	184	"\timg\t\t\"atags\" or \"fdt\"\n"
	185	"\tkernel_addr\taddress where a kernel image is stored.\n"
	186	"\t\t\tkernel is loaded as part of the boot process, but it is not started.\n"
	187	"\tinitrd_addr\taddress of initial ramdisk\n"
	188	"\t\t\tcan be set to \"-\" if fdt_addr without initrd_addr is used.\n"
	189	"\tfdt_addr\tin case of fdt, the address of the device tree.\n"
	190	);