drivers/mtd/nand/nand_spl_load.c

   1 /*
   2  * Copyright (C) 2011
   3  * Heiko Schocher, DENX Software Engineering, hs@denx.de.
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <nand.h>
  10
  11 /*
  12  * The main entry for NAND booting. It's necessary that SDRAM is already
  13  * configured and available since this code loads the main U-Boot image
  14  * from NAND into SDRAM and starts it from there.
  15  */
  16 void nand_boot(void)
  17 {
  18         __attribute__((noreturn)) void (*uboot)(void);
  19
  20         /*
  21          * Load U-Boot image from NAND into RAM
  22          */
  23         nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
  24                         CONFIG_SYS_NAND_U_BOOT_SIZE,
  25                         (void *)CONFIG_SYS_NAND_U_BOOT_DST);
  26
  27 #ifdef CONFIG_NAND_ENV_DST
  28         nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
  29                         (void *)CONFIG_NAND_ENV_DST);
  30
  31 #ifdef CONFIG_ENV_OFFSET_REDUND
  32         nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND, CONFIG_ENV_SIZE,
  33                         (void *)CONFIG_NAND_ENV_DST + CONFIG_ENV_SIZE);
  34 #endif
  35 #endif
  36
  37         /*
  38          * Jump to U-Boot image
  39          */
  40         uboot = (void *)CONFIG_SYS_NAND_U_BOOT_START;
  41         (*uboot)();
  42 }