1 /* SPDX-License-Identifier: BSD-2-Clause */
2 /*
3  * OP-TEE related definitions
4  *
5  * (C) Copyright 2016 Linaro Limited
6  * Andrew F. Davis <andrew.davis@linaro.org>
7  */
8 
9 #ifndef	_OPTEE_H
10 #define _OPTEE_H
11 
12 #include <linux/errno.h>
13 #include <image.h>
14 
15 #define OPTEE_MAGIC             0x4554504f
16 #define OPTEE_VERSION           1
17 #define OPTEE_ARCH_ARM32        0
18 #define OPTEE_ARCH_ARM64        1
19 
20 struct optee_header {
21 	uint32_t magic;
22 	uint8_t version;
23 	uint8_t arch;
24 	uint16_t flags;
25 	uint32_t init_size;
26 	uint32_t init_load_addr_hi;
27 	uint32_t init_load_addr_lo;
28 	uint32_t init_mem_usage;
29 	uint32_t paged_size;
30 };
31 
32 static inline uint32_t
optee_image_get_entry_point(const struct legacy_img_hdr * hdr)33 optee_image_get_entry_point(const struct legacy_img_hdr *hdr)
34 {
35 	struct optee_header *optee_hdr = (struct optee_header *)(hdr + 1);
36 
37 	return optee_hdr->init_load_addr_lo;
38 }
39 
40 static inline uint32_t
optee_image_get_load_addr(const struct legacy_img_hdr * hdr)41 optee_image_get_load_addr(const struct legacy_img_hdr *hdr)
42 {
43 	return optee_image_get_entry_point(hdr) - sizeof(struct optee_header);
44 }
45 
46 #if defined(CONFIG_OPTEE_IMAGE)
47 int optee_verify_bootm_image(unsigned long image_addr,
48 			     unsigned long image_load_addr,
49 			     unsigned long image_len);
50 #else
optee_verify_bootm_image(unsigned long image_addr,unsigned long image_load_addr,unsigned long image_len)51 static inline int optee_verify_bootm_image(unsigned long image_addr,
52 					   unsigned long image_load_addr,
53 					   unsigned long image_len)
54 {
55 	return -EPERM;
56 }
57 #endif
58 
59 #if defined(CONFIG_OPTEE_LIB) && defined(CONFIG_OF_LIBFDT)
60 int optee_copy_fdt_nodes(void *new_blob);
61 #else
optee_copy_fdt_nodes(void * new_blob)62 static inline int optee_copy_fdt_nodes(void *new_blob)
63 {
64 	return 0;
65 }
66 #endif
67 
68 #endif /* _OPTEE_H */
69