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https://github.com/brain-hackers/u-boot-brain
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OPTEE is currently linked to a specific area of memory called the TrustZone DRAM. This patch adds a CONFIG entry for the default size of TrustZone DRAM that a board-port can over-ride. The region that U-Boot sets aside for the OPTEE run-time should be verified before attempting to hand off to the OPTEE run-time. Each board-port should carefully ensure that the TZDRAM size specified in the OPTEE build and the TZDRAM size specified in U-Boot match-up. Further patches will use TZDRAM size with other defines and variables to carry out a degree of automated verification in U-Boot prior to trying to boot an OPTEE image. Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Cc: Harinarayan Bhatta <harinarayan@ti.com> Cc: Andrew F. Davis <afd@ti.com> Cc: Tom Rini <trini@konsulko.com> Cc: Kever Yang <kever.yang@rock-chips.com> Cc: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Cc: Peng Fan <peng.fan@nxp.com> Tested-by: Peng Fan <peng.fan@nxp.com>
17 lines
541 B
Plaintext
17 lines
541 B
Plaintext
config OPTEE
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bool "Support OPTEE images"
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help
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U-Boot can be configured to boot OPTEE images.
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Selecting this option will enable shared OPTEE library code and
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enable an OPTEE specific bootm command that will perform additional
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OPTEE specific checks before booting an OPTEE image created with
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mkimage.
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config OPTEE_TZDRAM_SIZE
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hex "Amount of Trust-Zone RAM for the OPTEE image"
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depends on OPTEE
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default 0x3000000
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help
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The size of pre-allocated Trust Zone DRAM to allocate for the OPTEE
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runtime.
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