[people/ms/u-boot.git] / common / cmd_spl.c

/*
 * Copyright (C) 2011
 * Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de>
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#include <common.h>
#include <command.h>
#include <cmd_spl.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) && ((int)c->cmd <= SPL_EXPORT_LAST)) {
		argc -= 2;
		argv += 2;
		if (call_bootm(argc, argv, subcmd_list[(int)c->cmd]))
			return -1;
		switch ((int)c->cmd) {
#ifdef CONFIG_OF_LIBFDT
		case SPL_EXPORT_FDT:
			printf("Argument image is now in RAM: 0x%p\n",
				(void *)images.ft_addr);
			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 = (int)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	*
	5	* See file CREDITS for list of people who contributed to this
	6	* project.
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License as
	10	* published by the Free Software Foundation; either version 2 of
	11	* the License, or (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	21	* MA 02111-1307 USA
	22	*/
	23
	24	#include <common.h>
	25	#include <command.h>
	26	#include <cmd_spl.h>
	27
	28	DECLARE_GLOBAL_DATA_PTR;
	29
	30	static const char **subcmd_list[] = {
	31
	32	[SPL_EXPORT_FDT] = (const char * []) {
	33	#ifdef CONFIG_OF_LIBFDT
	34	"start",
	35	"loados",
	36	#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
	37	"ramdisk",
	38	#endif
	39	"fdt",
	40	"cmdline",
	41	"bdt",
	42	"prep",
	43	#endif
	44	NULL,
	45	},
	46	[SPL_EXPORT_ATAGS] = (const char * []) {
	47	#if defined(CONFIG_SETUP_MEMORY_TAGS) \|\| \
	48	defined(CONFIG_CMDLINE_TAG) \|\| \
	49	defined(CONFIG_INITRD_TAG) \|\| \
	50	defined(CONFIG_SERIAL_TAG) \|\| \
	51	defined(CONFIG_REVISION_TAG)
	52	"start",
	53	"loados",
	54	#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
	55	"ramdisk",
	56	#endif
	57	"cmdline",
	58	"bdt",
	59	"prep",
	60	#endif
	61	NULL,
	62	},
	63	NULL
	64	};
65
66	/* Calls bootm with the parameters given */
67	static int call_bootm(int argc, char * const argv[], const char *subcommand[])
68	{
69	char *bootm_argv[5];
70
71	int i = 0;
72	int ret = 0;
73	int j;
74
75	/* create paramter array */
76	bootm_argv[0] = "do_bootm";
77	switch (argc) {
78	case 3:
79	bootm_argv[4] = argv[2]; /* fdt addr */
80	case 2:
81	bootm_argv[3] = argv[1]; /* initrd addr */
82	case 1:
83	bootm_argv[2] = argv[0]; /* kernel addr */
84	}
85
86
87	/*
88	* - do the work -
89	* exec subcommands of do_bootm to init the images
90	* data structure
91	*/
92	while (subcommand[i] != NULL) {
93	bootm_argv[1] = (char *)subcommand[i];
94	debug("args %d: %s %s ", argc, bootm_argv[0], bootm_argv[1]);
95	for (j = 0; j < argc; j++)
96	debug("%s ", bootm_argv[j + 2]);
97	debug("\n");
98
99	ret = do_bootm(find_cmd("do_bootm"), 0, argc+2,
100	bootm_argv);
101	debug("Subcommand retcode: %d\n", ret);
102	i++;
103	}
104
105	if (ret) {
106	printf("ERROR prep subcommand failed!\n");
107	return -1;
108	}
109
110	return 0;
111	}
112
113	static cmd_tbl_t cmd_spl_export_sub[] = {
114	U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)SPL_EXPORT_FDT, "", ""),
115	U_BOOT_CMD_MKENT(atags, 0, 1, (void *)SPL_EXPORT_ATAGS, "", ""),
116	};
117
118	static int spl_export(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
119	{
120	const cmd_tbl_t *c;
121
122	if (argc < 2) /* no subcommand */
123	return cmd_usage(cmdtp);
124
125	c = find_cmd_tbl(argv[1], &cmd_spl_export_sub[0],
126	ARRAY_SIZE(cmd_spl_export_sub));
127	if ((c) && ((int)c->cmd <= SPL_EXPORT_LAST)) {
128	argc -= 2;
129	argv += 2;
130	if (call_bootm(argc, argv, subcmd_list[(int)c->cmd]))
131	return -1;
132	switch ((int)c->cmd) {
bf3d58bb	133	#ifdef CONFIG_OF_LIBFDT
1648a375 SS	134	case SPL_EXPORT_FDT:
	135	printf("Argument image is now in RAM: 0x%p\n",
	136	(void *)images.ft_addr);
	137	break;
bf3d58bb	138	#endif
1648a375 SS	139	case SPL_EXPORT_ATAGS:
	140	printf("Argument image is now in RAM at: 0x%p\n",
	141	(void *)gd->bd->bi_boot_params);
	142	break;
	143	}
	144	} else {
	145	/* Unrecognized command */
	146	return cmd_usage(cmdtp);
	147	}
	148
	149	return 0;
	150	}
	151
	152	static cmd_tbl_t cmd_spl_sub[] = {
	153	U_BOOT_CMD_MKENT(export, 0, 1, (void *)SPL_EXPORT, "", ""),
	154	};
	155
	156	static int do_spl(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
	157	{
	158	const cmd_tbl_t *c;
	159	int cmd;
	160
	161	if (argc < 2) /* no subcommand */
	162	return cmd_usage(cmdtp);
	163
	164	c = find_cmd_tbl(argv[1], &cmd_spl_sub[0], ARRAY_SIZE(cmd_spl_sub));
	165	if (c) {
	166	cmd = (int)c->cmd;
	167	switch (cmd) {
	168	case SPL_EXPORT:
	169	argc--;
	170	argv++;
	171	if (spl_export(cmdtp, flag, argc, argv))
	172	printf("Subcommand failed\n");
	173	break;
	174	default:
	175	/* unrecognized command */
	176	return cmd_usage(cmdtp);
	177	}
	178	} else {
	179	/* Unrecognized command */
	180	return cmd_usage(cmdtp);
	181	}
	182	return 0;
	183	}
	184
	185	U_BOOT_CMD(
	186	spl, 6 , 1, do_spl, "SPL configuration",
28786eb9 SB	187	"export <img=atags\|fdt> [kernel_addr] [initrd_addr] [fdt_addr]\n"
	188	"\timg\t\t\"atags\" or \"fdt\"\n"
	189	"\tkernel_addr\taddress where a kernel image is stored.\n"
	190	"\t\t\tkernel is loaded as part of the boot process, but it is not started.\n"
	191	"\tinitrd_addr\taddress of initial ramdisk\n"
	192	"\t\t\tcan be set to \"-\" if fdt_addr without initrd_addr is used.\n"
	193	"\tfdt_addr\tin case of fdt, the address of the device tree.\n"
	194	);