From: Rui Miguel Silva rui.silva@linaro.org
We may have, the not yet considered, scenario where OPTEE is loaded before u-boot and *not* by u-boot, e.g, the boot flow using the ARM Trusted Firmware (ATF), where in the 32bit flow is: BootRom->ATF(BL2)->Optee(BL32)->u-boot(BL33)
In this case we need still to reserve the memory used by optee, to avoid for example to realocate ourself to the same address at the end of DRAM. So, we change here the dependencies on the OPTEE lib and we set the default size and base of TZRAM to zero.
Signed-off-by: Rui Miguel Silva rui.silva@linaro.org Signed-off-by: Bryan O'Donoghue bryan.odonoghue@linaro.org Cc: Fabio Estevam fabio.estevam@nxp.com Cc: Ryan Harkin ryan.harkin@linaro.org Cc: u-boot@lists.denx.de --- configs/warp7_defconfig | 2 ++ lib/optee/Kconfig | 8 ++++---- 2 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/configs/warp7_defconfig b/configs/warp7_defconfig index 15a66739f8..a1c0b69ea8 100644 --- a/configs/warp7_defconfig +++ b/configs/warp7_defconfig @@ -46,5 +46,7 @@ CONFIG_USB_ETH_CDC=y CONFIG_USBNET_HOST_ADDR="de:ad:be:af:00:00" CONFIG_OF_LIBFDT=y CONFIG_OPTEE=y +CONFIG_OPTEE_TZDRAM_SIZE=0x3000000 +CONFIG_OPTEE_TZDRAM_BASE=0x9d000000 CONFIG_OPTEE_LOAD_ADDR=0x84000000 CONFIG_BOOTM_OPTEE=y diff --git a/lib/optee/Kconfig b/lib/optee/Kconfig index 1e5ab45c3d..3773d89c31 100644 --- a/lib/optee/Kconfig +++ b/lib/optee/Kconfig @@ -10,21 +10,20 @@ config OPTEE config OPTEE_LOAD_ADDR hex "OPTEE load address" default 0x00000000 + depends on OPTEE help The load address of the bootable OPTEE binary.
config OPTEE_TZDRAM_SIZE hex "Amount of Trust-Zone RAM for the OPTEE image" - depends on OPTEE - default 0x3000000 + default 0x0000000 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 + default 0x00000000 help The base address of pre-allocated Trust Zone DRAM for the OPTEE runtime. @@ -32,6 +31,7 @@ config OPTEE_TZDRAM_BASE config BOOTM_OPTEE bool "Support OPTEE bootm command" select BOOTM_LINUX + depends on OPTEE default n help Select this command to enable chain-loading of a Linux kernel