diff options
Diffstat (limited to 'arch/arm/cpu/armv7/imx-common/cmd_bmode.c')
-rw-r--r-- | arch/arm/cpu/armv7/imx-common/cmd_bmode.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/imx-common/cmd_bmode.c b/arch/arm/cpu/armv7/imx-common/cmd_bmode.c new file mode 100644 index 0000000..02fe72e --- /dev/null +++ b/arch/arm/cpu/armv7/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; + } +} |