2 * (C) Copyright 2014 CompuLab, Ltd. <www.compulab.co.il>
4 * Authors: Igor Grinberg <grinberg@compulab.co.il>
6 * SPDX-License-Identifier: GPL-2.0+
13 #include <spi_flash.h>
17 #include <bmp_layout.h>
20 DECLARE_GLOBAL_DATA_PTR
;
22 #ifdef CONFIG_SPI_FLASH
23 static struct spi_flash
*sf
;
24 static int splash_sf_read_raw(u32 bmp_load_addr
, int offset
, size_t read_size
)
27 sf
= spi_flash_probe(CONFIG_SF_DEFAULT_BUS
,
29 CONFIG_SF_DEFAULT_SPEED
,
30 CONFIG_SF_DEFAULT_MODE
);
35 return spi_flash_read(sf
, offset
, read_size
, (void *)bmp_load_addr
);
38 static int splash_sf_read_raw(u32 bmp_load_addr
, int offset
, size_t read_size
)
40 debug("%s: sf support not available\n", __func__
);
45 #ifdef CONFIG_CMD_NAND
46 static int splash_nand_read_raw(u32 bmp_load_addr
, int offset
, size_t read_size
)
48 return nand_read_skip_bad(nand_info
[nand_curr_device
], offset
,
50 nand_info
[nand_curr_device
]->size
,
51 (u_char
*)bmp_load_addr
);
54 static int splash_nand_read_raw(u32 bmp_load_addr
, int offset
, size_t read_size
)
56 debug("%s: nand support not available\n", __func__
);
61 static int splash_storage_read_raw(struct splash_location
*location
,
62 u32 bmp_load_addr
, size_t read_size
)
69 offset
= location
->offset
;
70 switch (location
->storage
) {
71 case SPLASH_STORAGE_NAND
:
72 return splash_nand_read_raw(bmp_load_addr
, offset
, read_size
);
73 case SPLASH_STORAGE_SF
:
74 return splash_sf_read_raw(bmp_load_addr
, offset
, read_size
);
76 printf("Unknown splash location\n");
82 static int splash_load_raw(struct splash_location
*location
, u32 bmp_load_addr
)
84 struct bmp_header
*bmp_hdr
;
86 size_t bmp_size
, bmp_header_size
= sizeof(struct bmp_header
);
88 if (bmp_load_addr
+ bmp_header_size
>= gd
->start_addr_sp
)
89 goto splash_address_too_high
;
91 res
= splash_storage_read_raw(location
, bmp_load_addr
, bmp_header_size
);
95 bmp_hdr
= (struct bmp_header
*)bmp_load_addr
;
96 bmp_size
= le32_to_cpu(bmp_hdr
->file_size
);
98 if (bmp_load_addr
+ bmp_size
>= gd
->start_addr_sp
)
99 goto splash_address_too_high
;
101 return splash_storage_read_raw(location
, bmp_load_addr
, bmp_size
);
103 splash_address_too_high
:
104 printf("Error: splashimage address too high. Data overwrites U-Boot and/or placed beyond DRAM boundaries.\n");
109 static int splash_select_fs_dev(struct splash_location
*location
)
113 switch (location
->storage
) {
114 case SPLASH_STORAGE_MMC
:
115 res
= fs_set_blk_dev("mmc", location
->devpart
, FS_TYPE_ANY
);
117 case SPLASH_STORAGE_USB
:
118 res
= fs_set_blk_dev("usb", location
->devpart
, FS_TYPE_ANY
);
120 case SPLASH_STORAGE_SATA
:
121 res
= fs_set_blk_dev("sata", location
->devpart
, FS_TYPE_ANY
);
124 printf("Error: unsupported location storage.\n");
129 printf("Error: could not access storage.\n");
134 #ifdef CONFIG_USB_STORAGE
135 static int splash_init_usb(void)
143 return usb_stor_scan(1) < 0 ? -ENODEV
: 0;
146 static inline int splash_init_usb(void)
148 printf("Cannot load splash image: no USB support\n");
153 #ifdef CONFIG_CMD_SATA
154 static int splash_init_sata(void)
156 return sata_initialize();
159 static inline int splash_init_sata(void)
161 printf("Cannot load splash image: no SATA support\n");
166 #define SPLASH_SOURCE_DEFAULT_FILE_NAME "splash.bmp"
168 static int splash_load_fs(struct splash_location
*location
, u32 bmp_load_addr
)
174 splash_file
= getenv("splashfile");
176 splash_file
= SPLASH_SOURCE_DEFAULT_FILE_NAME
;
178 if (location
->storage
== SPLASH_STORAGE_USB
)
179 res
= splash_init_usb();
181 if (location
->storage
== SPLASH_STORAGE_SATA
)
182 res
= splash_init_sata();
187 res
= splash_select_fs_dev(location
);
191 res
= fs_size(splash_file
, &bmp_size
);
193 printf("Error (%d): cannot determine file size\n", res
);
197 if (bmp_load_addr
+ bmp_size
>= gd
->start_addr_sp
) {
198 printf("Error: splashimage address too high. Data overwrites U-Boot and/or placed beyond DRAM boundaries.\n");
202 splash_select_fs_dev(location
);
203 return fs_read(splash_file
, bmp_load_addr
, 0, 0, NULL
);
207 * select_splash_location - return the splash location based on board support
208 * and env variable "splashsource".
210 * @locations: An array of supported splash locations.
211 * @size: Size of splash_locations array.
213 * @return: If a null set of splash locations is given, or
214 * splashsource env variable is set to unsupported value
216 * If splashsource env variable is not defined
217 * return the first entry in splash_locations as default.
218 * If splashsource env variable contains a supported value
219 * return the location selected by splashsource.
221 static struct splash_location
*select_splash_location(
222 struct splash_location
*locations
, uint size
)
225 char *env_splashsource
;
227 if (!locations
|| size
== 0)
230 env_splashsource
= getenv("splashsource");
231 if (env_splashsource
== NULL
)
232 return &locations
[0];
234 for (i
= 0; i
< size
; i
++) {
235 if (!strcmp(locations
[i
].name
, env_splashsource
))
236 return &locations
[i
];
239 printf("splashsource env variable set to unsupported value\n");
244 * splash_source_load - load splash image from a supported location.
246 * Select a splash image location based on the value of splashsource environment
247 * variable and the board supported splash source locations, and load a
248 * splashimage to the address pointed to by splashimage environment variable.
250 * @locations: An array of supported splash locations.
251 * @size: Size of splash_locations array.
253 * @return: 0 on success, negative value on failure.
255 int splash_source_load(struct splash_location
*locations
, uint size
)
257 struct splash_location
*splash_location
;
258 char *env_splashimage_value
;
261 env_splashimage_value
= getenv("splashimage");
262 if (env_splashimage_value
== NULL
)
265 bmp_load_addr
= simple_strtoul(env_splashimage_value
, 0, 16);
266 if (bmp_load_addr
== 0) {
267 printf("Error: bad splashimage address specified\n");
271 splash_location
= select_splash_location(locations
, size
);
272 if (!splash_location
)
275 if (splash_location
->flags
& SPLASH_STORAGE_RAW
)
276 return splash_load_raw(splash_location
, bmp_load_addr
);
277 else if (splash_location
->flags
& SPLASH_STORAGE_FS
)
278 return splash_load_fs(splash_location
, bmp_load_addr
);