blob: 34b9d8afe675c5aa2aa2122e6716eda1697e3898 (
plain)
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
|
config OPTEE_LIB
bool "Support OPTEE library"
default y if OPTEE || OPTEE_IMAGE
help
Selecting this option will enable the shared OPTEE library code.
config HAS_TEE_IN_BUILD_ENV
def_bool $(success, test -n "$(TEE)")
select OPTEE_LIB if OF_CONTROL
select OF_LIBFDT if OF_CONTROL
help
It is typical whenever OP-TEE OS is loaded before U-Boot proper that
it modifies the FDT passed to U-Boot proper to add reserved-memory
nodes for the RAM it just reserved for itself.
U-Boot must copy those reserved-nodes in the FDT for the next OS to
boot.
Failing to do so will incur random crashes or device reboots once the
next OS is running.
This makes sure that whenever TEE is present in the environment,
meaning a TEE OS will be part of the boot flow, the copy made by the
OP-TEE lib will happen.
config OPTEE_IMAGE
bool "Support OPTEE images"
help
Selecting this option to boot OPTEE images.
This option enable the OPTEE specific checks done before booting
an OPTEE image created with mkimage
config OPTEE_TZDRAM_SIZE
hex "Amount of Trust-Zone RAM for the OPTEE image"
default 0x0000000
depends on OPTEE_LIB
help
The size of pre-allocated Trust Zone DRAM to allocate for the OPTEE
runtime.
config BOOTM_OPTEE
bool "Support OPTEE bootm command"
select BOOTM_LINUX
select OPTEE_IMAGE
help
Select this command to enable chain-loading of a Linux kernel
via an OPTEE firmware.
The bootflow is BootROM -> u-boot -> OPTEE -> Linux in this case.
|
