2 * (C) Copyright 2008 Semihalf
4 * (C) Copyright 2000-2005
5 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
7 * SPDX-License-Identifier: GPL-2.0+
8 ********************************************************************
9 * NOTE: This header file defines an interface to U-Boot. Including
10 * this (unmodified) header file in another file is considered normal
11 * use of U-Boot, and does *not* fall under the heading of "derived
13 ********************************************************************
20 #include <asm/byteorder.h>
22 /* Define this to avoid #ifdefs later on */
27 /* new uImage format support enabled on host */
29 #define CONFIG_OF_LIBFDT 1
30 #define CONFIG_FIT_VERBOSE 1 /* enable fit_format_{error,warning}() */
32 #define IMAGE_ENABLE_IGNORE 0
33 #define IMAGE_INDENT_STRING ""
38 #include <asm/u-boot.h>
41 /* Take notice of the 'ignore' property for hashes */
42 #define IMAGE_ENABLE_IGNORE 1
43 #define IMAGE_INDENT_STRING " "
45 #endif /* USE_HOSTCC */
47 #if defined(CONFIG_FIT)
49 #include <fdt_support.h>
50 # ifdef CONFIG_SPL_BUILD
51 # ifdef CONFIG_SPL_CRC32_SUPPORT
52 # define IMAGE_ENABLE_CRC32 1
54 # ifdef CONFIG_SPL_MD5_SUPPORT
55 # define IMAGE_ENABLE_MD5 1
57 # ifdef CONFIG_SPL_SHA1_SUPPORT
58 # define IMAGE_ENABLE_SHA1 1
61 # define CONFIG_CRC32 /* FIT images need CRC32 support */
62 # define CONFIG_MD5 /* and MD5 */
63 # define CONFIG_SHA1 /* and SHA1 */
64 # define IMAGE_ENABLE_CRC32 1
65 # define IMAGE_ENABLE_MD5 1
66 # define IMAGE_ENABLE_SHA1 1
69 #ifndef IMAGE_ENABLE_CRC32
70 #define IMAGE_ENABLE_CRC32 0
73 #ifndef IMAGE_ENABLE_MD5
74 #define IMAGE_ENABLE_MD5 0
77 #ifndef IMAGE_ENABLE_SHA1
78 #define IMAGE_ENABLE_SHA1 0
81 #endif /* CONFIG_FIT */
83 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
84 # define IMAGE_ENABLE_RAMDISK_HIGH 1
86 # define IMAGE_ENABLE_RAMDISK_HIGH 0
89 #ifdef CONFIG_OF_LIBFDT
90 # define IMAGE_ENABLE_OF_LIBFDT 1
92 # define IMAGE_ENABLE_OF_LIBFDT 0
95 #ifdef CONFIG_SYS_BOOT_GET_CMDLINE
96 # define IMAGE_BOOT_GET_CMDLINE 1
98 # define IMAGE_BOOT_GET_CMDLINE 0
101 #ifdef CONFIG_OF_BOARD_SETUP
102 # define IMAAGE_OF_BOARD_SETUP 1
104 # define IMAAGE_OF_BOARD_SETUP 0
108 * Operating System Codes
110 #define IH_OS_INVALID 0 /* Invalid OS */
111 #define IH_OS_OPENBSD 1 /* OpenBSD */
112 #define IH_OS_NETBSD 2 /* NetBSD */
113 #define IH_OS_FREEBSD 3 /* FreeBSD */
114 #define IH_OS_4_4BSD 4 /* 4.4BSD */
115 #define IH_OS_LINUX 5 /* Linux */
116 #define IH_OS_SVR4 6 /* SVR4 */
117 #define IH_OS_ESIX 7 /* Esix */
118 #define IH_OS_SOLARIS 8 /* Solaris */
119 #define IH_OS_IRIX 9 /* Irix */
120 #define IH_OS_SCO 10 /* SCO */
121 #define IH_OS_DELL 11 /* Dell */
122 #define IH_OS_NCR 12 /* NCR */
123 #define IH_OS_LYNXOS 13 /* LynxOS */
124 #define IH_OS_VXWORKS 14 /* VxWorks */
125 #define IH_OS_PSOS 15 /* pSOS */
126 #define IH_OS_QNX 16 /* QNX */
127 #define IH_OS_U_BOOT 17 /* Firmware */
128 #define IH_OS_RTEMS 18 /* RTEMS */
129 #define IH_OS_ARTOS 19 /* ARTOS */
130 #define IH_OS_UNITY 20 /* Unity OS */
131 #define IH_OS_INTEGRITY 21 /* INTEGRITY */
132 #define IH_OS_OSE 22 /* OSE */
133 #define IH_OS_PLAN9 23 /* Plan 9 */
136 * CPU Architecture Codes (supported by Linux)
138 #define IH_ARCH_INVALID 0 /* Invalid CPU */
139 #define IH_ARCH_ALPHA 1 /* Alpha */
140 #define IH_ARCH_ARM 2 /* ARM */
141 #define IH_ARCH_I386 3 /* Intel x86 */
142 #define IH_ARCH_IA64 4 /* IA64 */
143 #define IH_ARCH_MIPS 5 /* MIPS */
144 #define IH_ARCH_MIPS64 6 /* MIPS 64 Bit */
145 #define IH_ARCH_PPC 7 /* PowerPC */
146 #define IH_ARCH_S390 8 /* IBM S390 */
147 #define IH_ARCH_SH 9 /* SuperH */
148 #define IH_ARCH_SPARC 10 /* Sparc */
149 #define IH_ARCH_SPARC64 11 /* Sparc 64 Bit */
150 #define IH_ARCH_M68K 12 /* M68K */
151 #define IH_ARCH_MICROBLAZE 14 /* MicroBlaze */
152 #define IH_ARCH_NIOS2 15 /* Nios-II */
153 #define IH_ARCH_BLACKFIN 16 /* Blackfin */
154 #define IH_ARCH_AVR32 17 /* AVR32 */
155 #define IH_ARCH_ST200 18 /* STMicroelectronics ST200 */
156 #define IH_ARCH_SANDBOX 19 /* Sandbox architecture (test only) */
157 #define IH_ARCH_NDS32 20 /* ANDES Technology - NDS32 */
158 #define IH_ARCH_OPENRISC 21 /* OpenRISC 1000 */
163 * "Standalone Programs" are directly runnable in the environment
164 * provided by U-Boot; it is expected that (if they behave
165 * well) you can continue to work in U-Boot after return from
166 * the Standalone Program.
167 * "OS Kernel Images" are usually images of some Embedded OS which
168 * will take over control completely. Usually these programs
169 * will install their own set of exception handlers, device
170 * drivers, set up the MMU, etc. - this means, that you cannot
171 * expect to re-enter U-Boot except by resetting the CPU.
172 * "RAMDisk Images" are more or less just data blocks, and their
173 * parameters (address, size) are passed to an OS kernel that is
175 * "Multi-File Images" contain several images, typically an OS
176 * (Linux) kernel image and one or more data images like
177 * RAMDisks. This construct is useful for instance when you want
178 * to boot over the network using BOOTP etc., where the boot
179 * server provides just a single image file, but you want to get
180 * for instance an OS kernel and a RAMDisk image.
182 * "Multi-File Images" start with a list of image sizes, each
183 * image size (in bytes) specified by an "uint32_t" in network
184 * byte order. This list is terminated by an "(uint32_t)0".
185 * Immediately after the terminating 0 follow the images, one by
186 * one, all aligned on "uint32_t" boundaries (size rounded up to
187 * a multiple of 4 bytes - except for the last file).
189 * "Firmware Images" are binary images containing firmware (like
190 * U-Boot or FPGA images) which usually will be programmed to
193 * "Script files" are command sequences that will be executed by
194 * U-Boot's command interpreter; this feature is especially
195 * useful when you configure U-Boot to use a real shell (hush)
196 * as command interpreter (=> Shell Scripts).
199 #define IH_TYPE_INVALID 0 /* Invalid Image */
200 #define IH_TYPE_STANDALONE 1 /* Standalone Program */
201 #define IH_TYPE_KERNEL 2 /* OS Kernel Image */
202 #define IH_TYPE_RAMDISK 3 /* RAMDisk Image */
203 #define IH_TYPE_MULTI 4 /* Multi-File Image */
204 #define IH_TYPE_FIRMWARE 5 /* Firmware Image */
205 #define IH_TYPE_SCRIPT 6 /* Script file */
206 #define IH_TYPE_FILESYSTEM 7 /* Filesystem Image (any type) */
207 #define IH_TYPE_FLATDT 8 /* Binary Flat Device Tree Blob */
208 #define IH_TYPE_KWBIMAGE 9 /* Kirkwood Boot Image */
209 #define IH_TYPE_IMXIMAGE 10 /* Freescale IMXBoot Image */
210 #define IH_TYPE_UBLIMAGE 11 /* Davinci UBL Image */
211 #define IH_TYPE_OMAPIMAGE 12 /* TI OMAP Config Header Image */
212 #define IH_TYPE_AISIMAGE 13 /* TI Davinci AIS Image */
213 #define IH_TYPE_KERNEL_NOLOAD 14 /* OS Kernel Image, can run from any load address */
214 #define IH_TYPE_PBLIMAGE 15 /* Freescale PBL Boot Image */
219 #define IH_COMP_NONE 0 /* No Compression Used */
220 #define IH_COMP_GZIP 1 /* gzip Compression Used */
221 #define IH_COMP_BZIP2 2 /* bzip2 Compression Used */
222 #define IH_COMP_LZMA 3 /* lzma Compression Used */
223 #define IH_COMP_LZO 4 /* lzo Compression Used */
225 #define IH_MAGIC 0x27051956 /* Image Magic Number */
226 #define IH_NMLEN 32 /* Image Name Length */
228 /* Reused from common.h */
229 #define ROUND(a, b) (((a) + (b) - 1) & ~((b) - 1))
232 * Legacy format image header,
233 * all data in network byte order (aka natural aka bigendian).
235 typedef struct image_header {
236 __be32 ih_magic; /* Image Header Magic Number */
237 __be32 ih_hcrc; /* Image Header CRC Checksum */
238 __be32 ih_time; /* Image Creation Timestamp */
239 __be32 ih_size; /* Image Data Size */
240 __be32 ih_load; /* Data Load Address */
241 __be32 ih_ep; /* Entry Point Address */
242 __be32 ih_dcrc; /* Image Data CRC Checksum */
243 uint8_t ih_os; /* Operating System */
244 uint8_t ih_arch; /* CPU architecture */
245 uint8_t ih_type; /* Image Type */
246 uint8_t ih_comp; /* Compression Type */
247 uint8_t ih_name[IH_NMLEN]; /* Image Name */
250 typedef struct image_info {
251 ulong start, end; /* start/end of blob */
252 ulong image_start, image_len; /* start of image within blob, len of image */
253 ulong load; /* load addr for the image */
254 uint8_t comp, type, os; /* compression, type of image, os type */
258 * Legacy and FIT format headers used by do_bootm() and do_bootm_<os>()
261 typedef struct bootm_headers {
263 * Legacy os image header, if it is a multi component image
264 * then boot_get_ramdisk() and get_fdt() will attempt to get
265 * data from second and third component accordingly.
267 image_header_t *legacy_hdr_os; /* image header pointer */
268 image_header_t legacy_hdr_os_copy; /* header copy */
269 ulong legacy_hdr_valid;
271 #if defined(CONFIG_FIT)
272 const char *fit_uname_cfg; /* configuration node unit name */
274 void *fit_hdr_os; /* os FIT image header */
275 const char *fit_uname_os; /* os subimage node unit name */
276 int fit_noffset_os; /* os subimage node offset */
278 void *fit_hdr_rd; /* init ramdisk FIT image header */
279 const char *fit_uname_rd; /* init ramdisk subimage node unit name */
280 int fit_noffset_rd; /* init ramdisk subimage node offset */
282 void *fit_hdr_fdt; /* FDT blob FIT image header */
283 const char *fit_uname_fdt; /* FDT blob subimage node unit name */
284 int fit_noffset_fdt;/* FDT blob subimage node offset */
288 image_info_t os; /* os image info */
289 ulong ep; /* entry point of OS */
291 ulong rd_start, rd_end;/* ramdisk start/end */
293 char *ft_addr; /* flat dev tree address */
294 ulong ft_len; /* length of flat device tree */
303 int verify; /* getenv("verify")[0] != 'n' */
305 #define BOOTM_STATE_START (0x00000001)
306 #define BOOTM_STATE_FINDOS (0x00000002)
307 #define BOOTM_STATE_FINDOTHER (0x00000004)
308 #define BOOTM_STATE_LOADOS (0x00000008)
309 #define BOOTM_STATE_RAMDISK (0x00000010)
310 #define BOOTM_STATE_FDT (0x00000020)
311 #define BOOTM_STATE_OS_CMDLINE (0x00000040)
312 #define BOOTM_STATE_OS_BD_T (0x00000080)
313 #define BOOTM_STATE_OS_PREP (0x00000100)
314 #define BOOTM_STATE_OS_FAKE_GO (0x00000200) /* 'Almost' run the OS */
315 #define BOOTM_STATE_OS_GO (0x00000400)
319 struct lmb lmb; /* for memory mgmt */
323 extern bootm_headers_t images;
326 * Some systems (for example LWMON) have very short watchdog periods;
327 * we must make sure to split long operations like memmove() or
328 * checksum calculations into reasonable chunks.
331 #define CHUNKSZ (64 * 1024)
334 #ifndef CHUNKSZ_CRC32
335 #define CHUNKSZ_CRC32 (64 * 1024)
339 #define CHUNKSZ_MD5 (64 * 1024)
343 #define CHUNKSZ_SHA1 (64 * 1024)
346 #define uimage_to_cpu(x) be32_to_cpu(x)
347 #define cpu_to_uimage(x) cpu_to_be32(x)
350 * Translation table for entries of a specific type; used by
351 * get_table_entry_id() and get_table_entry_name().
353 typedef struct table_entry {
355 char *sname; /* short (input) name to find table entry */
356 char *lname; /* long (output) name to print for messages */
360 * get_table_entry_id() scans the translation table trying to find an
361 * entry that matches the given short name. If a matching entry is
362 * found, it's id is returned to the caller.
364 int get_table_entry_id(const table_entry_t *table,
365 const char *table_name, const char *name);
367 * get_table_entry_name() scans the translation table trying to find
368 * an entry that matches the given id. If a matching entry is found,
369 * its long name is returned to the caller.
371 char *get_table_entry_name(const table_entry_t *table, char *msg, int id);
373 const char *genimg_get_os_name(uint8_t os);
374 const char *genimg_get_arch_name(uint8_t arch);
375 const char *genimg_get_type_name(uint8_t type);
376 const char *genimg_get_comp_name(uint8_t comp);
377 int genimg_get_os_id(const char *name);
378 int genimg_get_arch_id(const char *name);
379 int genimg_get_type_id(const char *name);
380 int genimg_get_comp_id(const char *name);
381 void genimg_print_size(uint32_t size);
383 #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || \
385 #define IMAGE_ENABLE_TIMESTAMP 1
387 #define IMAGE_ENABLE_TIMESTAMP 0
389 void genimg_print_time(time_t timestamp);
391 /* What to do with a image load address ('load = <> 'in the FIT) */
393 FIT_LOAD_IGNORED, /* Ignore load address */
394 FIT_LOAD_OPTIONAL, /* Can be provided, but optional */
395 FIT_LOAD_REQUIRED, /* Must be provided */
399 /* Image format types, returned by _get_format() routine */
400 #define IMAGE_FORMAT_INVALID 0x00
401 #define IMAGE_FORMAT_LEGACY 0x01 /* legacy image_header based format */
402 #define IMAGE_FORMAT_FIT 0x02 /* new, libfdt based format */
404 int genimg_get_format(const void *img_addr);
405 int genimg_has_config(bootm_headers_t *images);
406 ulong genimg_get_image(ulong img_addr);
408 int boot_get_ramdisk(int argc, char * const argv[], bootm_headers_t *images,
409 uint8_t arch, ulong *rd_start, ulong *rd_end);
412 * fit_image_load() - load an image from a FIT
414 * This deals with all aspects of loading an image from a FIT, including
415 * selecting the right image based on configuration, verifying it, printing
416 * out progress messages, checking the type/arch/os and optionally copying it
417 * to the right load address.
419 * @param images Boot images structure
420 * @param prop_name Property name to look up (FIT_..._PROP)
421 * @param addr Address of FIT in memory
422 * @param fit_unamep On entry this is the requested image name
423 * (e.g. "kernel@1") or NULL to use the default. On exit
424 * points to the selected image name
425 * @param fit_uname_configp On entry this is the requested configuration
426 * name (e.g. "conf@1") or NULL to use the default. On
427 * exit points to the selected configuration name.
428 * @param arch Expected architecture (IH_ARCH_...)
429 * @param image_type Required image type (IH_TYPE_...). If this is
430 * IH_TYPE_KERNEL then we allow IH_TYPE_KERNEL_NOLOAD
432 * @param bootstage_id ID of starting bootstage to use for progress updates.
433 * This will be added to the BOOTSTAGE_SUB values when
434 * calling bootstage_mark()
435 * @param load_op Decribes what to do with the load address
436 * @param datap Returns address of loaded image
437 * @param lenp Returns length of loaded image
439 int fit_image_load(bootm_headers_t *images, const char *prop_name, ulong addr,
440 const char **fit_unamep, const char **fit_uname_configp,
441 int arch, int image_type, int bootstage_id,
442 enum fit_load_op load_op, ulong *datap, ulong *lenp);
445 * fit_get_node_from_config() - Look up an image a FIT by type
447 * This looks in the selected conf@ node (images->fit_uname_cfg) for a
448 * particular image type (e.g. "kernel") and then finds the image that is
451 * For example, for something like:
460 * kernel = "kernel@1";
464 * the function will return the node offset of the kernel@1 node, assuming
465 * that conf@1 is the chosen configuration.
467 * @param images Boot images structure
468 * @param prop_name Property name to look up (FIT_..._PROP)
469 * @param addr Address of FIT in memory
471 int fit_get_node_from_config(bootm_headers_t *images, const char *prop_name,
474 int boot_get_fdt(int flag, int argc, char * const argv[], uint8_t arch,
475 bootm_headers_t *images,
476 char **of_flat_tree, ulong *of_size);
477 void boot_fdt_add_mem_rsv_regions(struct lmb *lmb, void *fdt_blob);
478 int boot_relocate_fdt(struct lmb *lmb, char **of_flat_tree, ulong *of_size);
480 int boot_ramdisk_high(struct lmb *lmb, ulong rd_data, ulong rd_len,
481 ulong *initrd_start, ulong *initrd_end);
482 int boot_get_cmdline(struct lmb *lmb, ulong *cmd_start, ulong *cmd_end);
483 #ifdef CONFIG_SYS_BOOT_GET_KBD
484 int boot_get_kbd(struct lmb *lmb, bd_t **kbd);
485 #endif /* CONFIG_SYS_BOOT_GET_KBD */
486 #endif /* !USE_HOSTCC */
488 /*******************************************************************/
489 /* Legacy format specific code (prefixed with image_) */
490 /*******************************************************************/
491 static inline uint32_t image_get_header_size(void)
493 return (sizeof(image_header_t));
496 #define image_get_hdr_l(f) \
497 static inline uint32_t image_get_##f(const image_header_t *hdr) \
499 return uimage_to_cpu(hdr->ih_##f); \
501 image_get_hdr_l(magic) /* image_get_magic */
502 image_get_hdr_l(hcrc) /* image_get_hcrc */
503 image_get_hdr_l(time) /* image_get_time */
504 image_get_hdr_l(size) /* image_get_size */
505 image_get_hdr_l(load) /* image_get_load */
506 image_get_hdr_l(ep) /* image_get_ep */
507 image_get_hdr_l(dcrc) /* image_get_dcrc */
509 #define image_get_hdr_b(f) \
510 static inline uint8_t image_get_##f(const image_header_t *hdr) \
512 return hdr->ih_##f; \
514 image_get_hdr_b(os) /* image_get_os */
515 image_get_hdr_b(arch) /* image_get_arch */
516 image_get_hdr_b(type) /* image_get_type */
517 image_get_hdr_b(comp) /* image_get_comp */
519 static inline char *image_get_name(const image_header_t *hdr)
521 return (char *)hdr->ih_name;
524 static inline uint32_t image_get_data_size(const image_header_t *hdr)
526 return image_get_size(hdr);
530 * image_get_data - get image payload start address
533 * image_get_data() returns address of the image payload. For single
534 * component images it is image data start. For multi component
535 * images it points to the null terminated table of sub-images sizes.
538 * image payload data start address
540 static inline ulong image_get_data(const image_header_t *hdr)
542 return ((ulong)hdr + image_get_header_size());
545 static inline uint32_t image_get_image_size(const image_header_t *hdr)
547 return (image_get_size(hdr) + image_get_header_size());
549 static inline ulong image_get_image_end(const image_header_t *hdr)
551 return ((ulong)hdr + image_get_image_size(hdr));
554 #define image_set_hdr_l(f) \
555 static inline void image_set_##f(image_header_t *hdr, uint32_t val) \
557 hdr->ih_##f = cpu_to_uimage(val); \
559 image_set_hdr_l(magic) /* image_set_magic */
560 image_set_hdr_l(hcrc) /* image_set_hcrc */
561 image_set_hdr_l(time) /* image_set_time */
562 image_set_hdr_l(size) /* image_set_size */
563 image_set_hdr_l(load) /* image_set_load */
564 image_set_hdr_l(ep) /* image_set_ep */
565 image_set_hdr_l(dcrc) /* image_set_dcrc */
567 #define image_set_hdr_b(f) \
568 static inline void image_set_##f(image_header_t *hdr, uint8_t val) \
572 image_set_hdr_b(os) /* image_set_os */
573 image_set_hdr_b(arch) /* image_set_arch */
574 image_set_hdr_b(type) /* image_set_type */
575 image_set_hdr_b(comp) /* image_set_comp */
577 static inline void image_set_name(image_header_t *hdr, const char *name)
579 strncpy(image_get_name(hdr), name, IH_NMLEN);
582 int image_check_hcrc(const image_header_t *hdr);
583 int image_check_dcrc(const image_header_t *hdr);
585 ulong getenv_bootm_low(void);
586 phys_size_t getenv_bootm_size(void);
587 phys_size_t getenv_bootm_mapsize(void);
588 void memmove_wd(void *to, void *from, size_t len, ulong chunksz);
591 static inline int image_check_magic(const image_header_t *hdr)
593 return (image_get_magic(hdr) == IH_MAGIC);
595 static inline int image_check_type(const image_header_t *hdr, uint8_t type)
597 return (image_get_type(hdr) == type);
599 static inline int image_check_arch(const image_header_t *hdr, uint8_t arch)
601 return (image_get_arch(hdr) == arch);
603 static inline int image_check_os(const image_header_t *hdr, uint8_t os)
605 return (image_get_os(hdr) == os);
608 ulong image_multi_count(const image_header_t *hdr);
609 void image_multi_getimg(const image_header_t *hdr, ulong idx,
610 ulong *data, ulong *len);
612 void image_print_contents(const void *hdr);
615 static inline int image_check_target_arch(const image_header_t *hdr)
617 #ifndef IH_ARCH_DEFAULT
618 # error "please define IH_ARCH_DEFAULT in your arch asm/u-boot.h"
620 return image_check_arch(hdr, IH_ARCH_DEFAULT);
622 #endif /* USE_HOSTCC */
625 * Set up properties in the FDT
627 * This sets up properties in the FDT that is to be passed to linux.
629 * @images: Images information
630 * @blob: FDT to update
631 * @of_size: Size of the FDT
632 * @lmb: Points to logical memory block structure
633 * @return 0 if ok, <0 on failure
635 int image_setup_libfdt(bootm_headers_t *images, void *blob,
636 int of_size, struct lmb *lmb);
639 * Set up the FDT to use for booting a kernel
641 * This performs ramdisk setup, sets up the FDT if required, and adds
642 * paramters to the FDT if libfdt is available.
644 * @param images Images information
645 * @return 0 if ok, <0 on failure
647 int image_setup_linux(bootm_headers_t *images);
650 * bootz_setup() - Extract stat and size of a Linux xImage
652 * @image: Address of image
653 * @start: Returns start address of image
654 * @end : Returns end address of image
655 * @return 0 if OK, 1 if the image was not recognised
657 int bootz_setup(ulong image, ulong *start, ulong *end);
660 /*******************************************************************/
661 /* New uImage format specific code (prefixed with fit_) */
662 /*******************************************************************/
663 #if defined(CONFIG_FIT)
665 #define FIT_IMAGES_PATH "/images"
666 #define FIT_CONFS_PATH "/configurations"
668 /* hash/signature node */
669 #define FIT_HASH_NODENAME "hash"
670 #define FIT_ALGO_PROP "algo"
671 #define FIT_VALUE_PROP "value"
672 #define FIT_IGNORE_PROP "uboot-ignore"
673 #define FIT_SIG_NODENAME "signature"
676 #define FIT_DATA_PROP "data"
677 #define FIT_TIMESTAMP_PROP "timestamp"
678 #define FIT_DESC_PROP "description"
679 #define FIT_ARCH_PROP "arch"
680 #define FIT_TYPE_PROP "type"
681 #define FIT_OS_PROP "os"
682 #define FIT_COMP_PROP "compression"
683 #define FIT_ENTRY_PROP "entry"
684 #define FIT_LOAD_PROP "load"
686 /* configuration node */
687 #define FIT_KERNEL_PROP "kernel"
688 #define FIT_RAMDISK_PROP "ramdisk"
689 #define FIT_FDT_PROP "fdt"
690 #define FIT_DEFAULT_PROP "default"
692 #define FIT_MAX_HASH_LEN 20 /* max(crc32_len(4), sha1_len(20)) */
694 /* cmdline argument format parsing */
695 int fit_parse_conf(const char *spec, ulong addr_curr,
696 ulong *addr, const char **conf_name);
697 int fit_parse_subimage(const char *spec, ulong addr_curr,
698 ulong *addr, const char **image_name);
700 void fit_print_contents(const void *fit);
701 void fit_image_print(const void *fit, int noffset, const char *p);
704 * fit_get_end - get FIT image size
705 * @fit: pointer to the FIT format image header
708 * size of the FIT image (blob) in memory
710 static inline ulong fit_get_size(const void *fit)
712 return fdt_totalsize(fit);
716 * fit_get_end - get FIT image end
717 * @fit: pointer to the FIT format image header
720 * end address of the FIT image (blob) in memory
722 static inline ulong fit_get_end(const void *fit)
724 return (ulong)fit + fdt_totalsize(fit);
728 * fit_get_name - get FIT node name
729 * @fit: pointer to the FIT format image header
733 * pointer to node name, on success
735 static inline const char *fit_get_name(const void *fit_hdr,
736 int noffset, int *len)
738 return fdt_get_name(fit_hdr, noffset, len);
741 int fit_get_desc(const void *fit, int noffset, char **desc);
742 int fit_get_timestamp(const void *fit, int noffset, time_t *timestamp);
744 int fit_image_get_node(const void *fit, const char *image_uname);
745 int fit_image_get_os(const void *fit, int noffset, uint8_t *os);
746 int fit_image_get_arch(const void *fit, int noffset, uint8_t *arch);
747 int fit_image_get_type(const void *fit, int noffset, uint8_t *type);
748 int fit_image_get_comp(const void *fit, int noffset, uint8_t *comp);
749 int fit_image_get_load(const void *fit, int noffset, ulong *load);
750 int fit_image_get_entry(const void *fit, int noffset, ulong *entry);
751 int fit_image_get_data(const void *fit, int noffset,
752 const void **data, size_t *size);
754 int fit_image_hash_get_algo(const void *fit, int noffset, char **algo);
755 int fit_image_hash_get_value(const void *fit, int noffset, uint8_t **value,
758 int fit_set_timestamp(void *fit, int noffset, time_t timestamp);
761 * fit_add_verification_data() - add verification data to FIT image nodes
763 * @keydir: Directory containing keys
764 * @kwydest: FDT blob to write public key information to
765 * @fit: Pointer to the FIT format image header
766 * @comment: Comment to add to signature nodes
767 * @require_keys: Mark all keys as 'required'
769 * Adds hash values for all component images in the FIT blob.
770 * Hashes are calculated for all component images which have hash subnodes
771 * with algorithm property set to one of the supported hash algorithms.
773 * Also add signatures if signature nodes are present.
777 * libfdt error code, on failure
779 int fit_add_verification_data(const char *keydir, void *keydest, void *fit,
780 const char *comment, int require_keys);
782 int fit_image_verify(const void *fit, int noffset);
783 int fit_config_verify(const void *fit, int conf_noffset);
784 int fit_all_image_verify(const void *fit);
785 int fit_image_check_os(const void *fit, int noffset, uint8_t os);
786 int fit_image_check_arch(const void *fit, int noffset, uint8_t arch);
787 int fit_image_check_type(const void *fit, int noffset, uint8_t type);
788 int fit_image_check_comp(const void *fit, int noffset, uint8_t comp);
789 int fit_check_format(const void *fit);
791 int fit_conf_find_compat(const void *fit, const void *fdt);
792 int fit_conf_get_node(const void *fit, const char *conf_uname);
795 * fit_conf_get_prop_node() - Get node refered to by a configuration
797 * @noffset: Offset of conf@xxx node to check
798 * @prop_name: Property to read from the conf node
800 * The conf@ nodes contain references to other nodes, using properties
801 * like 'kernel = "kernel@1"'. Given such a property name (e.g. "kernel"),
802 * return the offset of the node referred to (e.g. offset of node
803 * "/images/kernel@1".
805 int fit_conf_get_prop_node(const void *fit, int noffset,
806 const char *prop_name);
808 void fit_conf_print(const void *fit, int noffset, const char *p);
810 int fit_check_ramdisk(const void *fit, int os_noffset,
811 uint8_t arch, int verify);
813 int calculate_hash(const void *data, int data_len, const char *algo,
814 uint8_t *value, int *value_len);
817 * At present we only support signing on the host, and verification on the
820 #if defined(CONFIG_FIT_SIGNATURE)
822 # define IMAGE_ENABLE_SIGN 1
823 # define IMAGE_ENABLE_VERIFY 0
825 # define IMAGE_ENABLE_SIGN 0
826 # define IMAGE_ENABLE_VERIFY 1
829 # define IMAGE_ENABLE_SIGN 0
830 # define IMAGE_ENABLE_VERIFY 0
834 # define gd_fdt_blob() NULL
836 # define gd_fdt_blob() (gd->fdt_blob)
839 #ifdef CONFIG_FIT_BEST_MATCH
840 #define IMAGE_ENABLE_BEST_MATCH 1
842 #define IMAGE_ENABLE_BEST_MATCH 0
845 /* Information passed to the signing routines */
846 struct image_sign_info {
847 const char *keydir; /* Directory conaining keys */
848 const char *keyname; /* Name of key to use */
849 void *fit; /* Pointer to FIT blob */
850 int node_offset; /* Offset of signature node */
851 struct image_sig_algo *algo; /* Algorithm information */
852 const void *fdt_blob; /* FDT containing public keys */
853 int required_keynode; /* Node offset of key to use: -1=any */
854 const char *require_keys; /* Value for 'required' property */
857 /* A part of an image, used for hashing */
858 struct image_region {
863 struct image_sig_algo {
864 const char *name; /* Name of algorithm */
867 * sign() - calculate and return signature for given input data
869 * @info: Specifies key and FIT information
870 * @data: Pointer to the input data
871 * @data_len: Data length
872 * @sigp: Set to an allocated buffer holding the signature
873 * @sig_len: Set to length of the calculated hash
875 * This computes input data signature according to selected algorithm.
876 * Resulting signature value is placed in an allocated buffer, the
877 * pointer is returned as *sigp. The length of the calculated
878 * signature is returned via the sig_len pointer argument. The caller
881 * @return: 0, on success, -ve on error
883 int (*sign)(struct image_sign_info *info,
884 const struct image_region region[],
885 int region_count, uint8_t **sigp, uint *sig_len);
888 * add_verify_data() - Add verification information to FDT
890 * Add public key information to the FDT node, suitable for
891 * verification at run-time. The information added depends on the
892 * algorithm being used.
894 * @info: Specifies key and FIT information
895 * @keydest: Destination FDT blob for public key data
896 * @return: 0, on success, -ve on error
898 int (*add_verify_data)(struct image_sign_info *info, void *keydest);
901 * verify() - Verify a signature against some data
903 * @info: Specifies key and FIT information
904 * @data: Pointer to the input data
905 * @data_len: Data length
907 * @sig_len: Number of bytes in signature
908 * @return 0 if verified, -ve on error
910 int (*verify)(struct image_sign_info *info,
911 const struct image_region region[], int region_count,
912 uint8_t *sig, uint sig_len);
916 * image_get_sig_algo() - Look up a signature algortihm
918 * @param name Name of algorithm
919 * @return pointer to algorithm information, or NULL if not found
921 struct image_sig_algo *image_get_sig_algo(const char *name);
924 * fit_image_verify_required_sigs() - Verify signatures marked as 'required'
927 * @image_noffset: Offset of image node to check
928 * @data: Image data to check
929 * @size: Size of image data
930 * @sig_blob: FDT containing public keys
931 * @no_sigsp: Returns 1 if no signatures were required, and
932 * therefore nothing was checked. The caller may wish
933 * to fall back to other mechanisms, or refuse to
935 * @return 0 if all verified ok, <0 on error
937 int fit_image_verify_required_sigs(const void *fit, int image_noffset,
938 const char *data, size_t size, const void *sig_blob,
942 * fit_image_check_sig() - Check a single image signature node
945 * @noffset: Offset of signature node to check
946 * @data: Image data to check
947 * @size: Size of image data
948 * @required_keynode: Offset in the control FDT of the required key node,
949 * if any. If this is given, then the image wil not
950 * pass verification unless that key is used. If this is
951 * -1 then any signature will do.
952 * @err_msgp: In the event of an error, this will be pointed to a
953 * help error string to display to the user.
954 * @return 0 if all verified ok, <0 on error
956 int fit_image_check_sig(const void *fit, int noffset, const void *data,
957 size_t size, int required_keynode, char **err_msgp);
960 * fit_region_make_list() - Make a list of regions to hash
962 * Given a list of FIT regions (offset, size) provided by libfdt, create
963 * a list of regions (void *, size) for use by the signature creationg
964 * and verification code.
966 * @fit: FIT image to process
967 * @fdt_regions: Regions as returned by libfdt
968 * @count: Number of regions returned by libfdt
969 * @region: Place to put list of regions (NULL to allocate it)
970 * @return pointer to list of regions, or NULL if out of memory
972 struct image_region *fit_region_make_list(const void *fit,
973 struct fdt_region *fdt_regions, int count,
974 struct image_region *region);
976 static inline int fit_image_check_target_arch(const void *fdt, int node)
978 return fit_image_check_arch(fdt, node, IH_ARCH_DEFAULT);
981 #ifdef CONFIG_FIT_VERBOSE
982 #define fit_unsupported(msg) printf("! %s:%d " \
983 "FIT images not supported for '%s'\n", \
984 __FILE__, __LINE__, (msg))
986 #define fit_unsupported_reset(msg) printf("! %s:%d " \
987 "FIT images not supported for '%s' " \
988 "- must reset board to recover!\n", \
989 __FILE__, __LINE__, (msg))
991 #define fit_unsupported(msg)
992 #define fit_unsupported_reset(msg)
993 #endif /* CONFIG_FIT_VERBOSE */
994 #endif /* CONFIG_FIT */
996 #endif /* __IMAGE_H__ */