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board: sl28: add OP-TEE Trusted OS support (bl32)

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Add support to load the OP-TEE Trusted OS by the SPL.

Signed-off-by: Michael Walle <michael@walle.cc>
This commit is contained in:
Michael Walle 2020-11-18 17:46:02 +01:00 committed by Tom Rini
parent e057760f38
commit 4c450daf7d
3 changed files with 66 additions and 0 deletions
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36
arch/arm/dts/fsl-ls1028a-kontron-sl28-u-boot.dtsi
View file

@ -138,6 +138,42 @@
};
#endif
#ifdef CONFIG_SL28_SPL_LOADS_OPTEE_BL32
&binman {
fit {
images {
bl32 {
description = "OP-TEE Trusted OS (bl32)";
type = "firmware";
arch = "arm";
os = "tee";
compression = "none";
load = <CONFIG_SL28_BL32_ENTRY_ADDR>;
entry = <CONFIG_SL28_BL32_ENTRY_ADDR>;
blob-ext {
filename = "tee.bin";
};
};
};
configurations {
conf-1 {
loadables = "uboot", "bl32";
};
conf-2 {
loadables = "uboot", "bl32";
};
conf-3 {
loadables = "uboot", "bl32";
};
};
};
};
#endif
&i2c0 {
rtc: rtc@32 {
};

23
board/kontron/sl28/Kconfig
View file

@ -25,4 +25,27 @@ config SL28_SPL_LOADS_ATF_BL31
Enable this to load a BL31 image by the SPL. You have to
provde a bl31.bin in u-boot's root directory.
if SL28_SPL_LOADS_ATF_BL31
config SL28_BL31_ENTRY_ADDR
hex "Entry point of the BL31 image"
default 0xfbe00000
endif
config SL28_SPL_LOADS_OPTEE_BL32
bool "SPL loads OP-TEE Trusted OS as BL32"
depends on SL28_SPL_LOADS_ATF_BL31
help
Enable this to load a BL32 image by the SPL. You have to
provde a tee.bin in u-boot's root directory.
if SL28_SPL_LOADS_OPTEE_BL32
config SL28_BL32_ENTRY_ADDR
hex "Entry point of the BL32 image"
default 0xfc000000
endif
endif

7
board/kontron/sl28/sl28.c
View file

@ -50,6 +50,7 @@ int ft_board_setup(void *blob, struct bd_info *bd)
u64 base[CONFIG_NR_DRAM_BANKS];
u64 size[CONFIG_NR_DRAM_BANKS];
int nbanks = CONFIG_NR_DRAM_BANKS;
int node;
int i;
ft_cpu_setup(blob, bd);
@ -64,5 +65,11 @@ int ft_board_setup(void *blob, struct bd_info *bd)
fdt_fixup_icid(blob);
if (CONFIG_IS_ENABLED(SL28_SPL_LOADS_OPTEE_BL32)) {
node = fdt_node_offset_by_compatible(blob, -1, "linaro,optee-tz");
if (node)
fdt_set_node_status(blob, node, FDT_STATUS_OKAY, 0);
}
return 0;
}