1 /* 2 * Copyright (C) 2011 3 * Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de> 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 #include <common.h> 8 #include <config.h> 9 #include <spl.h> 10 #include <asm/io.h> 11 #include <nand.h> 12 13 void spl_nand_load_image(void) 14 { 15 struct image_header *header; 16 int *src __attribute__((unused)); 17 int *dst __attribute__((unused)); 18 19 debug("spl: nand - using hw ecc\n"); 20 nand_init(); 21 22 /*use CONFIG_SYS_TEXT_BASE as temporary storage area */ 23 header = (struct image_header *)(CONFIG_SYS_TEXT_BASE); 24 #ifdef CONFIG_SPL_OS_BOOT 25 if (!spl_start_uboot()) { 26 /* 27 * load parameter image 28 * load to temp position since nand_spl_load_image reads 29 * a whole block which is typically larger than 30 * CONFIG_CMD_SPL_WRITE_SIZE therefore may overwrite 31 * following sections like BSS 32 */ 33 nand_spl_load_image(CONFIG_CMD_SPL_NAND_OFS, 34 CONFIG_CMD_SPL_WRITE_SIZE, 35 (void *)CONFIG_SYS_TEXT_BASE); 36 /* copy to destintion */ 37 for (dst = (int *)CONFIG_SYS_SPL_ARGS_ADDR, 38 src = (int *)CONFIG_SYS_TEXT_BASE; 39 src < (int *)(CONFIG_SYS_TEXT_BASE + 40 CONFIG_CMD_SPL_WRITE_SIZE); 41 src++, dst++) { 42 writel(readl(src), dst); 43 } 44 45 /* load linux */ 46 nand_spl_load_image(CONFIG_SYS_NAND_SPL_KERNEL_OFFS, 47 CONFIG_SYS_NAND_PAGE_SIZE, (void *)header); 48 spl_parse_image_header(header); 49 if (header->ih_os == IH_OS_LINUX) { 50 /* happy - was a linux */ 51 nand_spl_load_image(CONFIG_SYS_NAND_SPL_KERNEL_OFFS, 52 spl_image.size, (void *)spl_image.load_addr); 53 nand_deselect(); 54 return; 55 } else { 56 puts("The Expected Linux image was not " 57 "found. Please check your NAND " 58 "configuration.\n"); 59 puts("Trying to start u-boot now...\n"); 60 } 61 } 62 #endif 63 #ifdef CONFIG_NAND_ENV_DST 64 nand_spl_load_image(CONFIG_ENV_OFFSET, 65 CONFIG_SYS_NAND_PAGE_SIZE, (void *)header); 66 spl_parse_image_header(header); 67 nand_spl_load_image(CONFIG_ENV_OFFSET, spl_image.size, 68 (void *)spl_image.load_addr); 69 #ifdef CONFIG_ENV_OFFSET_REDUND 70 nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND, 71 CONFIG_SYS_NAND_PAGE_SIZE, (void *)header); 72 spl_parse_image_header(header); 73 nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND, spl_image.size, 74 (void *)spl_image.load_addr); 75 #endif 76 #endif 77 /* Load u-boot */ 78 nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS, 79 CONFIG_SYS_NAND_PAGE_SIZE, (void *)header); 80 spl_parse_image_header(header); 81 nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS, 82 spl_image.size, (void *)spl_image.load_addr); 83 nand_deselect(); 84 } 85