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

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

#include <common.h>
#include <command.h>
#include <cmd_spl.h>
#include <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));
			if (fdt_totalsize(images.ft_addr) >
			    CONFIG_CMD_SPL_WRITE_SIZE)
				puts("WARN: FDT size > CMD_SPL_WRITE_SIZE\n");
			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
1648a375 SS	1	/*
	2	* Copyright (C) 2011
	3	* Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de>
	4	*
1a459660	5	* SPDX-License-Identifier: GPL-2.0+
1648a375 SS	6	*/
	7
	8	#include <common.h>
	9	#include <command.h>
	10	#include <cmd_spl.h>
c3b572c4	11	#include <libfdt.h>
1648a375 SS	12
	13	DECLARE_GLOBAL_DATA_PTR;
	14
	15	static const char **subcmd_list[] = {
	16
	17	[SPL_EXPORT_FDT] = (const char * []) {
	18	#ifdef CONFIG_OF_LIBFDT
	19	"start",
	20	"loados",
	21	#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
	22	"ramdisk",
	23	#endif
	24	"fdt",
	25	"cmdline",
	26	"bdt",
	27	"prep",
	28	#endif
	29	NULL,
	30	},
	31	[SPL_EXPORT_ATAGS] = (const char * []) {
	32	#if defined(CONFIG_SETUP_MEMORY_TAGS) \|\| \
	33	defined(CONFIG_CMDLINE_TAG) \|\| \
	34	defined(CONFIG_INITRD_TAG) \|\| \
	35	defined(CONFIG_SERIAL_TAG) \|\| \
	36	defined(CONFIG_REVISION_TAG)
	37	"start",
	38	"loados",
	39	#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
	40	"ramdisk",
	41	#endif
	42	"cmdline",
	43	"bdt",
	44	"prep",
	45	#endif
	46	NULL,
	47	},
	48	NULL
	49	};
	50
	51	/* Calls bootm with the parameters given */
	52	static int call_bootm(int argc, char * const argv[], const char *subcommand[])
	53	{
	54	char *bootm_argv[5];
	55
	56	int i = 0;
	57	int ret = 0;
	58	int j;
	59
	60	/* create paramter array */
	61	bootm_argv[0] = "do_bootm";
	62	switch (argc) {
	63	case 3:
	64	bootm_argv[4] = argv[2]; /* fdt addr */
	65	case 2:
	66	bootm_argv[3] = argv[1]; /* initrd addr */
	67	case 1:
	68	bootm_argv[2] = argv[0]; /* kernel addr */
	69	}
	70
	71
	72	/*
	73	* - do the work -
	74	* exec subcommands of do_bootm to init the images
	75	* data structure
76	*/
77	while (subcommand[i] != NULL) {
78	bootm_argv[1] = (char *)subcommand[i];
79	debug("args %d: %s %s ", argc, bootm_argv[0], bootm_argv[1]);
80	for (j = 0; j < argc; j++)
81	debug("%s ", bootm_argv[j + 2]);
82	debug("\n");
83
84	ret = do_bootm(find_cmd("do_bootm"), 0, argc+2,
85	bootm_argv);
86	debug("Subcommand retcode: %d\n", ret);
87	i++;
88	}
89
90	if (ret) {
91	printf("ERROR prep subcommand failed!\n");
92	return -1;
93	}
94
95	return 0;
96	}
97
98	static cmd_tbl_t cmd_spl_export_sub[] = {
99	U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)SPL_EXPORT_FDT, "", ""),
100	U_BOOT_CMD_MKENT(atags, 0, 1, (void *)SPL_EXPORT_ATAGS, "", ""),
101	};
102
103	static int spl_export(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
104	{
105	const cmd_tbl_t *c;
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);
	123	env_set_hex("fdtargslen", fdt_totalsize(images.ft_addr));
	124	if (fdt_totalsize(images.ft_addr) >
	125	CONFIG_CMD_SPL_WRITE_SIZE)
	126	puts("WARN: FDT size > CMD_SPL_WRITE_SIZE\n");
1648a375	127	break;
bf3d58bb	128	#endif
1648a375 SS	129	case SPL_EXPORT_ATAGS:
	130	printf("Argument image is now in RAM at: 0x%p\n",
	131	(void *)gd->bd->bi_boot_params);
	132	break;
	133	}
	134	} else {
	135	/* Unrecognized command */
	136	return cmd_usage(cmdtp);
	137	}
	138
	139	return 0;
	140	}
	141
	142	static cmd_tbl_t cmd_spl_sub[] = {
	143	U_BOOT_CMD_MKENT(export, 0, 1, (void *)SPL_EXPORT, "", ""),
	144	};
	145
	146	static int do_spl(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
	147	{
	148	const cmd_tbl_t *c;
	149	int cmd;
	150
	151	if (argc < 2) /* no subcommand */
	152	return cmd_usage(cmdtp);
	153
	154	c = find_cmd_tbl(argv[1], &cmd_spl_sub[0], ARRAY_SIZE(cmd_spl_sub));
	155	if (c) {
d1f2ee70	156	cmd = (long)c->cmd;
1648a375 SS	157	switch (cmd) {
	158	case SPL_EXPORT:
	159	argc--;
	160	argv++;
	161	if (spl_export(cmdtp, flag, argc, argv))
	162	printf("Subcommand failed\n");
	163	break;
	164	default:
	165	/* unrecognized command */
	166	return cmd_usage(cmdtp);
	167	}
	168	} else {
	169	/* Unrecognized command */
	170	return cmd_usage(cmdtp);
	171	}
	172	return 0;
	173	}
	174
	175	U_BOOT_CMD(
	176	spl, 6 , 1, do_spl, "SPL configuration",
28786eb9 SB	177	"export <img=atags\|fdt> [kernel_addr] [initrd_addr] [fdt_addr]\n"
	178	"\timg\t\t\"atags\" or \"fdt\"\n"
	179	"\tkernel_addr\taddress where a kernel image is stored.\n"
	180	"\t\t\tkernel is loaded as part of the boot process, but it is not started.\n"
	181	"\tinitrd_addr\taddress of initial ramdisk\n"
	182	"\t\t\tcan be set to \"-\" if fdt_addr without initrd_addr is used.\n"
	183	"\tfdt_addr\tin case of fdt, the address of the device tree.\n"
	184	);