diff options
Diffstat (limited to 'drivers/mtd/nand')
| -rw-r--r-- | drivers/mtd/nand/Makefile | 3 | ||||
| -rw-r--r-- | drivers/mtd/nand/nand_spl_load.c | 56 |
2 files changed, 59 insertions, 0 deletions
diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile index 1eeba5c..28bd350 100644 --- a/drivers/mtd/nand/Makefile +++ b/drivers/mtd/nand/Makefile @@ -30,6 +30,9 @@ ifdef CONFIG_SPL_BUILD ifdef CONFIG_SPL_NAND_SIMPLE COBJS-y += nand_spl_simple.o endif +ifdef CONFIG_SPL_NAND_LOAD +COBJS-y += nand_spl_load.o +endif else COBJS-y += nand.o COBJS-y += nand_bbt.o diff --git a/drivers/mtd/nand/nand_spl_load.c b/drivers/mtd/nand/nand_spl_load.c new file mode 100644 index 0000000..ae8d5ac --- /dev/null +++ b/drivers/mtd/nand/nand_spl_load.c @@ -0,0 +1,56 @@ +/* + * Copyright (C) 2011 + * Heiko Schocher, DENX Software Engineering, hs@denx.de. + * + * 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 <nand.h> + +/* + * The main entry for NAND booting. It's necessary that SDRAM is already + * configured and available since this code loads the main U-Boot image + * from NAND into SDRAM and starts it from there. + */ +void nand_boot(void) +{ + int ret; + __attribute__((noreturn)) void (*uboot)(void); + + /* + * Load U-Boot image from NAND into RAM + */ + ret = nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS, + CONFIG_SYS_NAND_U_BOOT_SIZE, + (void *)CONFIG_SYS_NAND_U_BOOT_DST); + +#ifdef CONFIG_NAND_ENV_DST + ret = nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, + (void *)CONFIG_NAND_ENV_DST); + +#ifdef CONFIG_ENV_OFFSET_REDUND + ret = nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND, CONFIG_ENV_SIZE, + (void *)CONFIG_NAND_ENV_DST + CONFIG_ENV_SIZE); +#endif +#endif + + /* + * Jump to U-Boot image + */ + uboot = (void *)CONFIG_SYS_NAND_U_BOOT_START; + (*uboot)(); +} |