1 // SPDX-License-Identifier: GPL-2.0+
4 * Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de>
8 #include <fdt_support.h>
14 #include <linux/libfdt_env.h>
17 uint32_t __weak spl_nand_get_uboot_raw_page(void)
19 return CONFIG_SYS_NAND_U_BOOT_OFFS;
22 #if defined(CONFIG_SPL_NAND_RAW_ONLY)
23 static int spl_nand_load_image(struct spl_image_info *spl_image,
24 struct spl_boot_device *bootdev)
28 printf("Loading U-Boot from 0x%08x (size 0x%08x) to 0x%08x\n",
29 CONFIG_SYS_NAND_U_BOOT_OFFS, CONFIG_SYS_NAND_U_BOOT_SIZE,
30 CONFIG_SYS_NAND_U_BOOT_DST);
32 nand_spl_load_image(spl_nand_get_uboot_raw_page(),
33 CONFIG_SYS_NAND_U_BOOT_SIZE,
34 (void *)CONFIG_SYS_NAND_U_BOOT_DST);
35 spl_set_header_raw_uboot(spl_image);
42 static ulong spl_nand_fit_read(struct spl_load_info *load, ulong offs,
43 ulong size, void *dst)
48 sector = *(int *)load->priv;
51 offs = sector + nand_spl_adjust_offset(sector, offs - sector);
52 err = nand_spl_load_image(offs, size, dst);
56 return size / load->bl_len;
59 struct mtd_info * __weak nand_get_mtd(void)
64 static int spl_nand_load_element(struct spl_image_info *spl_image,
65 struct spl_boot_device *bootdev,
66 int offset, struct image_header *header)
68 struct mtd_info *mtd = nand_get_mtd();
69 int bl_len = mtd ? mtd->writesize : 1;
72 err = nand_spl_load_image(offset, sizeof(*header), (void *)header);
76 if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
77 image_get_magic(header) == FDT_MAGIC) {
78 struct spl_load_info load;
85 load.read = spl_nand_fit_read;
86 return spl_load_simple_fit(spl_image, &load, offset / bl_len, header);
87 } else if (IS_ENABLED(CONFIG_SPL_LOAD_IMX_CONTAINER)) {
88 struct spl_load_info load;
94 load.read = spl_nand_fit_read;
95 return spl_load_imx_container(spl_image, &load, offset / bl_len);
97 err = spl_parse_image_header(spl_image, bootdev, header);
100 return nand_spl_load_image(offset, spl_image->size,
101 (void *)(ulong)spl_image->load_addr);
105 static int spl_nand_load_image(struct spl_image_info *spl_image,
106 struct spl_boot_device *bootdev)
109 struct image_header *header;
110 int *src __attribute__((unused));
111 int *dst __attribute__((unused));
113 #ifdef CONFIG_SPL_NAND_SOFTECC
114 debug("spl: nand - using sw ecc\n");
116 debug("spl: nand - using hw ecc\n");
120 header = spl_get_load_buffer(0, sizeof(*header));
122 #if CONFIG_IS_ENABLED(OS_BOOT)
123 if (!spl_start_uboot()) {
125 * load parameter image
126 * load to temp position since nand_spl_load_image reads
127 * a whole block which is typically larger than
128 * CONFIG_CMD_SPL_WRITE_SIZE therefore may overwrite
129 * following sections like BSS
131 nand_spl_load_image(CONFIG_CMD_SPL_NAND_OFS,
132 CONFIG_CMD_SPL_WRITE_SIZE,
133 (void *)CONFIG_SYS_TEXT_BASE);
134 /* copy to destintion */
135 for (dst = (int *)CONFIG_SYS_SPL_ARGS_ADDR,
136 src = (int *)CONFIG_SYS_TEXT_BASE;
137 src < (int *)(CONFIG_SYS_TEXT_BASE +
138 CONFIG_CMD_SPL_WRITE_SIZE);
140 writel(readl(src), dst);
144 nand_spl_load_image(CONFIG_SYS_NAND_SPL_KERNEL_OFFS,
145 sizeof(*header), (void *)header);
146 err = spl_parse_image_header(spl_image, bootdev, header);
149 if (header->ih_os == IH_OS_LINUX) {
150 /* happy - was a linux */
151 err = nand_spl_load_image(
152 CONFIG_SYS_NAND_SPL_KERNEL_OFFS,
154 (void *)spl_image->load_addr);
158 puts("The Expected Linux image was not "
159 "found. Please check your NAND "
161 puts("Trying to start u-boot now...\n");
165 #ifdef CONFIG_NAND_ENV_DST
166 spl_nand_load_element(spl_image, bootdev, CONFIG_ENV_OFFSET, header);
167 #ifdef CONFIG_ENV_OFFSET_REDUND
168 spl_nand_load_element(spl_image, bootdev, CONFIG_ENV_OFFSET_REDUND, header);
172 err = spl_nand_load_element(spl_image, bootdev, spl_nand_get_uboot_raw_page(),
174 #ifdef CONFIG_SYS_NAND_U_BOOT_OFFS_REDUND
175 #if CONFIG_SYS_NAND_U_BOOT_OFFS != CONFIG_SYS_NAND_U_BOOT_OFFS_REDUND
177 err = spl_nand_load_element(spl_image, bootdev,
178 CONFIG_SYS_NAND_U_BOOT_OFFS_REDUND,
186 /* Use priorty 1 so that Ubi can override this */
187 SPL_LOAD_IMAGE_METHOD("NAND", 1, BOOT_DEVICE_NAND, spl_nand_load_image);