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| author | Rouven Czerwinski <r.czerwinski@pengutronix.de> | 2020-01-28 06:38:20 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2020-01-30 06:22:28 +0100 |
| commit | 4b7c346be3b9ced3166a6290d8c2a5fac691d3f2 (patch) | |
| tree | c81ce1ca8d38cbfc9096c4bd7caf5be6b0304e08 /arch/arm/include | |
| parent | 7e73f9a3b89dcabb5737e2989ede1f7558dff9f1 (diff) | |
| download | barebox-4b7c346be3b9ced3166a6290d8c2a5fac691d3f2.tar.gz barebox-4b7c346be3b9ced3166a6290d8c2a5fac691d3f2.tar.xz | |
ARM: add optee early loading function
Add a OP-TEE early loading function which expects a pointer to a valid
tee binary and the device tree. OP-TEE will then be started and barebox
will continue to run in normal mode.
The function start_optee_early should be used in a boards lowlevel.c
file. Ensure that barebox has been relocated and a proper c environment
has been setup beforehand. Depending on the OP-TEE configuration, the
fdt will be modified. If the internal barebox device tree is passed,
OP-TEE will overwrite barebox PBL memory during this modification. Copy
the fdt to a save memory location beforehand to avoid a corruption of
barebox PBL memory.
This also moves the OP-TEE Kconfig symbols into a separate menu.
Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/barebox-arm.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/include/asm/barebox-arm.h b/arch/arm/include/asm/barebox-arm.h index 8b2ecd9ab2..599852d644 100644 --- a/arch/arm/include/asm/barebox-arm.h +++ b/arch/arm/include/asm/barebox-arm.h @@ -119,7 +119,7 @@ void *barebox_arm_boot_dtb(void); static inline unsigned long arm_mem_stack_top(unsigned long membase, unsigned long endmem) { - if (IS_ENABLED(CONFIG_BOOTM_OPTEE)) + if (IS_ENABLED(CONFIG_BOOTM_OPTEE) || IS_ENABLED(CONFIG_PBL_OPTEE)) endmem -= OPTEE_SIZE; return endmem - SZ_64K; |