From 35499baf3b3c6b9e5e9df0ed676a2cdae131946a Mon Sep 17 00:00:00 2001 From: Bryan O'Donoghue Date: Tue, 13 Mar 2018 16:50:29 +0000 Subject: [PATCH] optee: Add CONFIG_OPTEE_TZDRAM_BASE 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 Cc: Harinarayan Bhatta Cc: Andrew F. Davis Cc: Tom Rini Cc: Kever Yang Cc: Philipp Tomsich --- 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.