1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
@startuml
box "BL1 common code"
participant bl1_main
participant bl_common
end box
box "arm platform code" #LightBlue
participant fvp_bl1_setup
participant arm_bl1_setup
participant arm_io_storage
end box
box "platform common code"
participant plat_bl1_common
participant fconf_dyn_cfg_getter
participant fconf
end box
bl1_main -> fvp_bl1_setup : bl1_platform_setup()
fvp_bl1_setup -> arm_bl1_setup : arm_bl1_platform_setup()
arm_bl1_setup -> arm_io_storage : plat_arm_io_setup()
note over arm_io_storage : register and setup fip
arm_bl1_setup -> fconf : set_config_info(fw_config_base, max_size, FW_CONFIG_ID)
note over fconf
set fw_config information
(address, size, image_id)
in global dtb_infos array.
end note
activate fconf
arm_bl1_setup -> fconf : fconf_load_config(FW_CONFIG_ID)
fconf -> fconf : FCONF_GET_PROPERTY(dyn_cfg, dtb, FW_CONFIG_ID)
fconf -> fconf_dyn_cfg_getter: dyn_cfg_dtb_info_getter(FW_CONFIG_ID)
fconf_dyn_cfg_getter -> fconf: fw_config_info
fconf -> bl_common : load_auth_image(FW_CONFIG_ID, &image_info)
activate bl_common
note over bl_common
load and auth image from fip
with info from plat_io_policy
end note
bl_common -> arm_io_storage
arm_io_storage -> fconf: FCONF_GET_PROPERTY(arm, arm_io_policies, FW_CONFIG_ID)
note over fconf: use statically defined policies in bl1
fconf <- bl_common : image_info
deactivate bl_common
note over fconf : get fw_config_dtb from image_info
arm_bl1_setup -> fconf: FCONF_GET_PROPERTY(dyn_cfg, dtb, FW_CONFIG_ID)
fconf -> fconf_dyn_cfg_getter: dyn_cfg_dtb_info_getter(FW_CONFIG_ID)
fconf_dyn_cfg_getter -> arm_bl1_setup: fw_config_info
arm_bl1_setup -> fconf_dyn_cfg_getter: populate_dtb_registry(uintptr_t dtb)
arm_bl1_setup -> fconf: fconf_load_config(TB_FW_CONFIG_ID)
fconf -> fconf : FCONF_GET_PROPERTY(dyn_cfg, dtb, TB_FW_CONFIG_ID)
fconf -> fconf_dyn_cfg_getter: dyn_cfg_dtb_info_getter(TB_FW_CONFIG_ID)
fconf_dyn_cfg_getter -> fconf: tb_fw_config_info
fconf -> bl_common : load_auth_image(TB_FW_CONFIG_ID, &image_info)
activate bl_common
note over bl_common
load and auth image from fip
with info from plat_io_policy
end note
bl_common -> arm_io_storage
arm_io_storage -> fconf: FCONF_GET_PROPERTY(arm, arm_io_policies, TB_FW_CONFIG_ID)
note over fconf: use statically defined policies in bl1
fconf <- bl_common : image_info
deactivate bl_common
note over fconf : get tb_fw_config_dtb from image_info
fconf -> arm_bl1_setup
arm_bl1_setup -> plat_bl1_common : bl1_plat_get_image_desc(BL2_IMAGE_ID)
arm_bl1_setup <- plat_bl1_common : BL2_IMAGE_DESC
note over arm_bl1_setup
set ep_info.args.arg0 of BL2_IMAGE_DESC
to FW_CONFIG base address
end note
deactivate fconf
== load & auth, prepare and jump to BL2 ==
@enduml
|
