efi_loader: remove superfluous check in efi_setup_loaded_image()
[oweals/u-boot.git] / common / spl / spl_nand.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2011
4  * Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de>
5  */
6 #include <common.h>
7 #include <config.h>
8 #include <spl.h>
9 #include <asm/io.h>
10 #include <nand.h>
11 #include <linux/libfdt_env.h>
12 #include <fdt.h>
13
14 #if defined(CONFIG_SPL_NAND_RAW_ONLY)
15 static int spl_nand_load_image(struct spl_image_info *spl_image,
16                         struct spl_boot_device *bootdev)
17 {
18         nand_init();
19
20         nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
21                             CONFIG_SYS_NAND_U_BOOT_SIZE,
22                             (void *)CONFIG_SYS_NAND_U_BOOT_DST);
23         spl_set_header_raw_uboot(spl_image);
24         nand_deselect();
25
26         return 0;
27 }
28 #else
29
30 static ulong spl_nand_fit_read(struct spl_load_info *load, ulong offs,
31                                ulong size, void *dst)
32 {
33         int ret;
34
35         ret = nand_spl_load_image(offs, size, dst);
36         if (!ret)
37                 return size;
38         else
39                 return 0;
40 }
41
42 static int spl_nand_load_element(struct spl_image_info *spl_image,
43                                  int offset, struct image_header *header)
44 {
45         int err;
46
47         err = nand_spl_load_image(offset, sizeof(*header), (void *)header);
48         if (err)
49                 return err;
50
51         if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
52             image_get_magic(header) == FDT_MAGIC) {
53                 struct spl_load_info load;
54
55                 debug("Found FIT\n");
56                 load.dev = NULL;
57                 load.priv = NULL;
58                 load.filename = NULL;
59                 load.bl_len = 1;
60                 load.read = spl_nand_fit_read;
61                 return spl_load_simple_fit(spl_image, &load, offset, header);
62         } else {
63                 err = spl_parse_image_header(spl_image, header);
64                 if (err)
65                         return err;
66                 return nand_spl_load_image(offset, spl_image->size,
67                                            (void *)(ulong)spl_image->load_addr);
68         }
69 }
70
71 static int spl_nand_load_image(struct spl_image_info *spl_image,
72                                struct spl_boot_device *bootdev)
73 {
74         int err;
75         struct image_header *header;
76         int *src __attribute__((unused));
77         int *dst __attribute__((unused));
78
79 #ifdef CONFIG_SPL_NAND_SOFTECC
80         debug("spl: nand - using sw ecc\n");
81 #else
82         debug("spl: nand - using hw ecc\n");
83 #endif
84         nand_init();
85
86         header = spl_get_load_buffer(0, sizeof(*header));
87
88 #ifdef CONFIG_SPL_OS_BOOT
89         if (!spl_start_uboot()) {
90                 /*
91                  * load parameter image
92                  * load to temp position since nand_spl_load_image reads
93                  * a whole block which is typically larger than
94                  * CONFIG_CMD_SPL_WRITE_SIZE therefore may overwrite
95                  * following sections like BSS
96                  */
97                 nand_spl_load_image(CONFIG_CMD_SPL_NAND_OFS,
98                         CONFIG_CMD_SPL_WRITE_SIZE,
99                         (void *)CONFIG_SYS_TEXT_BASE);
100                 /* copy to destintion */
101                 for (dst = (int *)CONFIG_SYS_SPL_ARGS_ADDR,
102                                 src = (int *)CONFIG_SYS_TEXT_BASE;
103                                 src < (int *)(CONFIG_SYS_TEXT_BASE +
104                                 CONFIG_CMD_SPL_WRITE_SIZE);
105                                 src++, dst++) {
106                         writel(readl(src), dst);
107                 }
108
109                 /* load linux */
110                 nand_spl_load_image(CONFIG_SYS_NAND_SPL_KERNEL_OFFS,
111                         sizeof(*header), (void *)header);
112                 err = spl_parse_image_header(spl_image, header);
113                 if (err)
114                         return err;
115                 if (header->ih_os == IH_OS_LINUX) {
116                         /* happy - was a linux */
117                         err = nand_spl_load_image(
118                                 CONFIG_SYS_NAND_SPL_KERNEL_OFFS,
119                                 spl_image->size,
120                                 (void *)spl_image->load_addr);
121                         nand_deselect();
122                         return err;
123                 } else {
124                         puts("The Expected Linux image was not "
125                                 "found. Please check your NAND "
126                                 "configuration.\n");
127                         puts("Trying to start u-boot now...\n");
128                 }
129         }
130 #endif
131 #ifdef CONFIG_NAND_ENV_DST
132         spl_nand_load_element(spl_image, CONFIG_ENV_OFFSET, header);
133 #ifdef CONFIG_ENV_OFFSET_REDUND
134         spl_nand_load_element(spl_image, CONFIG_ENV_OFFSET_REDUND, header);
135 #endif
136 #endif
137         /* Load u-boot */
138         err = spl_nand_load_element(spl_image, CONFIG_SYS_NAND_U_BOOT_OFFS,
139                                     header);
140 #ifdef CONFIG_SYS_NAND_U_BOOT_OFFS_REDUND
141 #if CONFIG_SYS_NAND_U_BOOT_OFFS != CONFIG_SYS_NAND_U_BOOT_OFFS_REDUND
142         if (err)
143                 err = spl_nand_load_element(spl_image,
144                                             CONFIG_SYS_NAND_U_BOOT_OFFS_REDUND,
145                                             header);
146 #endif
147 #endif
148         nand_deselect();
149         return err;
150 }
151 #endif
152 /* Use priorty 1 so that Ubi can override this */
153 SPL_LOAD_IMAGE_METHOD("NAND", 1, BOOT_DEVICE_NAND, spl_nand_load_image);