[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 * []) {
#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	*/
	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 * []) {
6493fa4c	35	#ifdef CONFIG_SUPPORT_PASSING_ATAGS
1648a375 SS	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 */
09140113	51	static int call_bootm(int argc, char const argv[], const char subcommand[])
1648a375 SS	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
09140113	97	static struct cmd_tbl cmd_spl_export_sub[] = {
1648a375 SS	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
09140113 SG	102	static int spl_export(struct cmd_tbl *cmdtp, int flag, int argc,
09140113 SG	103	char *const argv[])
1648a375	104	{
09140113	105	const struct cmd_tbl *c;
1648a375 SS	106
	107	if (argc < 2) /* no subcommand */
	108	return cmd_usage(cmdtp);
	109
	110	c = find_cmd_tbl(argv[1], &cmd_spl_export_sub[0],
	111	ARRAY_SIZE(cmd_spl_export_sub));
d1f2ee70	112	if ((c) && ((long)c->cmd <= SPL_EXPORT_LAST)) {
1648a375 SS	113	argc -= 2;
1648a375 SS	114	argv += 2;
d1f2ee70	115	if (call_bootm(argc, argv, subcmd_list[(long)c->cmd]))
1648a375	116	return -1;
d1f2ee70	117	switch ((long)c->cmd) {
bf3d58bb	118	#ifdef CONFIG_OF_LIBFDT
1648a375 SS	119	case SPL_EXPORT_FDT:
	120	printf("Argument image is now in RAM: 0x%p\n",
	121	(void *)images.ft_addr);
767cb74a AG	122	env_set_addr("fdtargsaddr", images.ft_addr);
767cb74a AG	123	env_set_hex("fdtargslen", fdt_totalsize(images.ft_addr));
b65ac633	124	#ifdef CONFIG_CMD_SPL_WRITE_SIZE
767cb74a AG	125	if (fdt_totalsize(images.ft_addr) >
	126	CONFIG_CMD_SPL_WRITE_SIZE)
	127	puts("WARN: FDT size > CMD_SPL_WRITE_SIZE\n");
b65ac633	128	#endif
1648a375	129	break;
bf3d58bb	130	#endif
1648a375 SS	131	case SPL_EXPORT_ATAGS:
	132	printf("Argument image is now in RAM at: 0x%p\n",
	133	(void *)gd->bd->bi_boot_params);
	134	break;
	135	}
	136	} else {
	137	/* Unrecognized command */
	138	return cmd_usage(cmdtp);
	139	}
	140
	141	return 0;
	142	}
	143
09140113	144	static struct cmd_tbl cmd_spl_sub[] = {
1648a375 SS	145	U_BOOT_CMD_MKENT(export, 0, 1, (void *)SPL_EXPORT, "", ""),
	146	};
	147
09140113	148	static int do_spl(struct cmd_tbl cmdtp, int flag, int argc, char const argv[])
1648a375	149	{
09140113	150	const struct cmd_tbl *c;
1648a375 SS	151	int cmd;
	152
	153	if (argc < 2) /* no subcommand */
	154	return cmd_usage(cmdtp);
	155
	156	c = find_cmd_tbl(argv[1], &cmd_spl_sub[0], ARRAY_SIZE(cmd_spl_sub));
	157	if (c) {
d1f2ee70	158	cmd = (long)c->cmd;
1648a375 SS	159	switch (cmd) {
	160	case SPL_EXPORT:
	161	argc--;
	162	argv++;
	163	if (spl_export(cmdtp, flag, argc, argv))
	164	printf("Subcommand failed\n");
	165	break;
	166	default:
	167	/* unrecognized command */
	168	return cmd_usage(cmdtp);
	169	}
	170	} else {
	171	/* Unrecognized command */
	172	return cmd_usage(cmdtp);
	173	}
	174	return 0;
	175	}
	176
	177	U_BOOT_CMD(
	178	spl, 6 , 1, do_spl, "SPL configuration",
28786eb9 SB	179	"export <img=atags\|fdt> [kernel_addr] [initrd_addr] [fdt_addr]\n"
	180	"\timg\t\t\"atags\" or \"fdt\"\n"
	181	"\tkernel_addr\taddress where a kernel image is stored.\n"
	182	"\t\t\tkernel is loaded as part of the boot process, but it is not started.\n"
	183	"\tinitrd_addr\taddress of initial ramdisk\n"
	184	"\t\t\tcan be set to \"-\" if fdt_addr without initrd_addr is used.\n"
	185	"\tfdt_addr\tin case of fdt, the address of the device tree.\n"
	186	);