OPTEE is currently linked to a specific area of memory called the TrustZone
DRAM. This patch adds a CONFIG entry for the default address 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
address specified in the OPTEE build and the TZDRAM address specified in
U-Boot match-up.
Further patches will use TZDRAM address 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.odonog...@linaro.org>
Cc: Harinarayan Bhatta <harinara...@ti.com>
Cc: Andrew F. Davis <a...@ti.com>
Cc: Tom Rini <tr...@konsulko.com>
Cc: Kever Yang <kever.y...@rock-chips.com>
Cc: Philipp Tomsich <philipp.toms...@theobroma-systems.com>
---
lib/optee/Kconfig | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/lib/optee/Kconfig b/lib/optee/Kconfig
index 41c0ab7..a3b7332 100644
--- a/lib/optee/Kconfig
+++ b/lib/optee/Kconfig
@@ -14,3 +14,11 @@ config OPTEE_TZDRAM_SIZE
help
The size of pre-allocated Trust Zone DRAM to allocate for the OPTEE
runtime.
+
+config OPTEE_TZDRAM_BASE
+ hex "Base address of Trust-Zone RAM for the OPTEE image"
+ depends on OPTEE
+ default 0x9d000000
+ help
+ The base address of pre-allocated Trust Zone DRAM for
+ the OPTEE runtime.
--
2.7.4
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