diff options
Diffstat (limited to 'arch/arm/imx-common/cmd_bmode.c')
| -rw-r--r-- | arch/arm/imx-common/cmd_bmode.c | 119 | 
1 files changed, 119 insertions, 0 deletions
| diff --git a/arch/arm/imx-common/cmd_bmode.c b/arch/arm/imx-common/cmd_bmode.c new file mode 100644 index 000000000..02fe72ed7 --- /dev/null +++ b/arch/arm/imx-common/cmd_bmode.c @@ -0,0 +1,119 @@ +/* + * Copyright (C) 2012 Boundary Devices Inc. + * + * 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 <asm/errno.h> +#include <asm/io.h> +#include <asm/imx-common/boot_mode.h> +#include <malloc.h> + +static const struct boot_mode *modes[2]; + +static const struct boot_mode *search_modes(char *arg) +{ +	int i; + +	for (i = 0; i < ARRAY_SIZE(modes); i++) { +		const struct boot_mode *p = modes[i]; +		if (p) { +			while (p->name) { +				if (!strcmp(p->name, arg)) +					return p; +				p++; +			} +		} +	} +	return NULL; +} + +static int create_usage(char *dest) +{ +	int i; +	int size = 0; + +	for (i = 0; i < ARRAY_SIZE(modes); i++) { +		const struct boot_mode *p = modes[i]; +		if (p) { +			while (p->name) { +				int len = strlen(p->name); +				if (dest) { +					memcpy(dest, p->name, len); +					dest += len; +					*dest++ = '|'; +				} +				size += len + 1; +				p++; +			} +		} +	} +	if (dest) +		memcpy(dest - 1, " [noreset]", 11);	/* include trailing 0 */ +	size += 10; +	return size; +} + +static int do_boot_mode(cmd_tbl_t *cmdtp, int flag, int argc, +		char * const argv[]) +{ +	const struct boot_mode *p; +	int reset_requested = 1; + +	if (argc < 2) +		return CMD_RET_USAGE; +	p = search_modes(argv[1]); +	if (!p) +		return CMD_RET_USAGE; +	if (argc == 3) { +		if (strcmp(argv[2], "noreset")) +			return CMD_RET_USAGE; +		reset_requested = 0; +	} + +	boot_mode_apply(p->cfg_val); +	if (reset_requested && p->cfg_val) +		do_reset(NULL, 0, 0, NULL); +	return 0; +} + +U_BOOT_CMD( +	bmode, 3, 0, do_boot_mode, +	NULL, +	""); + +void add_board_boot_modes(const struct boot_mode *p) +{ +	int size; +	char *dest; + +	if (__u_boot_cmd_bmode.usage) { +		free(__u_boot_cmd_bmode.usage); +		__u_boot_cmd_bmode.usage = NULL; +	} + +	modes[0] = p; +	modes[1] = soc_boot_modes; +	size = create_usage(NULL); +	dest = malloc(size); +	if (dest) { +		create_usage(dest); +		__u_boot_cmd_bmode.usage = dest; +	} +} |