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

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2011
 * Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de>
 */

#include <common.h>
#include <command.h>
#include <cmd_spl.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 cmd_tbl_t 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(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	const cmd_tbl_t *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 cmd_tbl_t cmd_spl_sub[] = {
	U_BOOT_CMD_MKENT(export, 0, 1, (void *)SPL_EXPORT, "", ""),
};

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