[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 <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 * []) {
#ifdef CONFIG_SUPPORT_PASSING_ATAGS
		"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	*/
1648a375 SS	6
1648a375 SS	7	#include <command.h>
1648a375 SS	8	#include <cmd_spl.h>
c7694dd4	9	#include <env.h>
4d72caa5	10	#include <image.h>
f7ae49fc	11	#include <log.h>
401d1c4f	12	#include <asm/global_data.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 * []) {
6493fa4c	34	#ifdef CONFIG_SUPPORT_PASSING_ATAGS
1648a375 SS	35	"start",
	36	"loados",
	37	#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
	38	"ramdisk",
	39	#endif
	40	"cmdline",
	41	"bdt",
	42	"prep",
	43	#endif
	44	NULL,
	45	},
	46	NULL
	47	};
	48
	49	/* Calls bootm with the parameters given */
09140113	50	static int call_bootm(int argc, char const argv[], const char subcommand[])
1648a375 SS	51	{
	52	char *bootm_argv[5];
	53
	54	int i = 0;
	55	int ret = 0;
	56	int j;
	57
	58	/* create paramter array */
	59	bootm_argv[0] = "do_bootm";
	60	switch (argc) {
	61	case 3:
	62	bootm_argv[4] = argv[2]; /* fdt addr */
	63	case 2:
	64	bootm_argv[3] = argv[1]; /* initrd addr */
	65	case 1:
	66	bootm_argv[2] = argv[0]; /* kernel addr */
	67	}
	68
	69
	70	/*
	71	* - do the work -
	72	* exec subcommands of do_bootm to init the images
	73	* data structure
	74	*/
	75	while (subcommand[i] != NULL) {
	76	bootm_argv[1] = (char *)subcommand[i];
	77	debug("args %d: %s %s ", argc, bootm_argv[0], bootm_argv[1]);
	78	for (j = 0; j < argc; j++)
	79	debug("%s ", bootm_argv[j + 2]);
	80	debug("\n");
	81
	82	ret = do_bootm(find_cmd("do_bootm"), 0, argc+2,
	83	bootm_argv);
	84	debug("Subcommand retcode: %d\n", ret);
	85	i++;
	86	}
	87
	88	if (ret) {
	89	printf("ERROR prep subcommand failed!\n");
	90	return -1;
	91	}
	92
	93	return 0;
	94	}
	95
09140113	96	static struct cmd_tbl cmd_spl_export_sub[] = {
1648a375 SS	97	U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)SPL_EXPORT_FDT, "", ""),
	98	U_BOOT_CMD_MKENT(atags, 0, 1, (void *)SPL_EXPORT_ATAGS, "", ""),
	99	};
	100
09140113 SG	101	static int spl_export(struct cmd_tbl *cmdtp, int flag, int argc,
09140113 SG	102	char *const argv[])
1648a375	103	{
09140113	104	const struct cmd_tbl *c;
1648a375 SS	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
09140113	143	static struct cmd_tbl cmd_spl_sub[] = {
1648a375 SS	144	U_BOOT_CMD_MKENT(export, 0, 1, (void *)SPL_EXPORT, "", ""),
	145	};
	146
09140113	147	static int do_spl(struct cmd_tbl cmdtp, int flag, int argc, char const argv[])
1648a375	148	{
09140113	149	const struct cmd_tbl *c;
1648a375 SS	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	);