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11#include <common.h>
12#include <spi.h>
13#include <spi_flash.h>
14#include <errno.h>
15#include <spl.h>
16
17DECLARE_GLOBAL_DATA_PTR;
18
19#ifdef CONFIG_SPL_OS_BOOT
20
21
22
23
24static int spi_load_image_os(struct spl_image_info *spl_image,
25 struct spi_flash *flash,
26 struct image_header *header)
27{
28 int err;
29
30
31 spi_flash_read(flash, CONFIG_SYS_SPI_KERNEL_OFFS, sizeof(*header),
32 (void *)header);
33
34 if (image_get_magic(header) != IH_MAGIC)
35 return -1;
36
37 err = spl_parse_image_header(spl_image, header);
38 if (err)
39 return err;
40
41 spi_flash_read(flash, CONFIG_SYS_SPI_KERNEL_OFFS,
42 spl_image->size, (void *)spl_image->load_addr);
43
44
45 spi_flash_read(flash, CONFIG_SYS_SPI_ARGS_OFFS,
46 CONFIG_SYS_SPI_ARGS_SIZE,
47 (void *)CONFIG_SYS_SPL_ARGS_ADDR);
48
49 return 0;
50}
51#endif
52
53static ulong spl_spi_fit_read(struct spl_load_info *load, ulong sector,
54 ulong count, void *buf)
55{
56 struct spi_flash *flash = load->dev;
57 ulong ret;
58
59 ret = spi_flash_read(flash, sector, count, buf);
60 if (!ret)
61 return count;
62 else
63 return 0;
64}
65
66unsigned int __weak spl_spi_get_uboot_offs(struct spi_flash *flash)
67{
68 return CONFIG_SYS_SPI_U_BOOT_OFFS;
69}
70
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74
75
76static int spl_spi_load_image(struct spl_image_info *spl_image,
77 struct spl_boot_device *bootdev)
78{
79 int err = 0;
80 unsigned int payload_offs;
81 struct spi_flash *flash;
82 struct image_header *header;
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89
90 flash = spi_flash_probe(CONFIG_SF_DEFAULT_BUS,
91 CONFIG_SF_DEFAULT_CS,
92 CONFIG_SF_DEFAULT_SPEED,
93 CONFIG_SF_DEFAULT_MODE);
94 if (!flash) {
95 puts("SPI probe failed.\n");
96 return -ENODEV;
97 }
98
99 payload_offs = spl_spi_get_uboot_offs(flash);
100
101 header = spl_get_load_buffer(-sizeof(*header), sizeof(*header));
102
103#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
104 payload_offs = fdtdec_get_config_int(gd->fdt_blob,
105 "u-boot,spl-payload-offset",
106 payload_offs);
107#endif
108
109#ifdef CONFIG_SPL_OS_BOOT
110 if (spl_start_uboot() || spi_load_image_os(spl_image, flash, header))
111#endif
112 {
113
114 err = spi_flash_read(flash, payload_offs, sizeof(*header),
115 (void *)header);
116 if (err) {
117 debug("%s: Failed to read from SPI flash (err=%d)\n",
118 __func__, err);
119 return err;
120 }
121
122 if (IS_ENABLED(CONFIG_SPL_LOAD_FIT_FULL) &&
123 image_get_magic(header) == FDT_MAGIC) {
124 err = spi_flash_read(flash, payload_offs,
125 roundup(fdt_totalsize(header), 4),
126 (void *)CONFIG_SYS_LOAD_ADDR);
127 if (err)
128 return err;
129 err = spl_parse_image_header(spl_image,
130 (struct image_header *)CONFIG_SYS_LOAD_ADDR);
131 } else if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
132 image_get_magic(header) == FDT_MAGIC) {
133 struct spl_load_info load;
134
135 debug("Found FIT\n");
136 load.dev = flash;
137 load.priv = NULL;
138 load.filename = NULL;
139 load.bl_len = 1;
140 load.read = spl_spi_fit_read;
141 err = spl_load_simple_fit(spl_image, &load,
142 payload_offs,
143 header);
144 } else if (IS_ENABLED(CONFIG_SPL_LOAD_IMX_CONTAINER)) {
145 struct spl_load_info load;
146
147 load.dev = flash;
148 load.priv = NULL;
149 load.filename = NULL;
150 load.bl_len = 1;
151 load.read = spl_spi_fit_read;
152
153 err = spl_load_imx_container(spl_image, &load,
154 payload_offs);
155 } else {
156 err = spl_parse_image_header(spl_image, header);
157 if (err)
158 return err;
159 err = spi_flash_read(flash, payload_offs,
160 spl_image->size,
161 (void *)spl_image->load_addr);
162 }
163 }
164
165 return err;
166}
167
168SPL_LOAD_IMAGE_METHOD("SPI", 1, BOOT_DEVICE_SPI, spl_spi_load_image);
169