From: Abdellatif El Khlifi abdellatif.elkhlifi@arm.com
This patchset adds support for Arm FF-A (Arm Firmware Framework for Armv8-A v1.0).
FF-A support is generic by design and can be used by any Arm platform.
The features added are as follows:
1/ FF-A device driver 2/ armffa command 3/ FF-A Sandbox driver 4/ FF-A Sandbox test cases 5/ FF-A MM communication
The suggested design sees FF-A as a data bus allowing data exchange with the firmware running under TrustZone HW (such as Optee). The same approach was followed in the FF-A driver in Linux kernel (https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/driv...))
u-boot boards using FF-A can provide a device tree node in a <board>-u-boot.dtsi file. Since the node can not be hosted in Linux device tree, we suggest using u-boot device tree.
As a use case, we will send a commit enabling FF-A for the Corstone-1000 platform and providing the FF-A node in u-boot.dtsi files.
Corstone-1000: https://lore.kernel.org/u-boot/20220322104118.573537-1-rui.silva@linaro.org/
Cc: Tom Rini trini@konsulko.com
Abdellatif El Khlifi (6): arm_ffa: introduce Arm FF-A low-level driver arm_ffa: introduce armffa command arm_ffa: introduce the FF-A Sandbox driver arm_ffa: introduce Sandbox test cases for UCLASS_FFA arm_ffa: introduce armffa command Sandbox test arm_ffa: introduce FF-A MM communication
MAINTAINERS | 15 + arch/arm/cpu/armv8/cache.S | 16 + arch/arm/cpu/armv8/cache_v8.c | 3 +- arch/arm/cpu/armv8/smccc-call.S | 27 + arch/arm/lib/asm-offsets.c | 6 + arch/sandbox/dts/sandbox.dtsi | 10 + arch/sandbox/dts/test.dts | 10 + cmd/Kconfig | 10 + cmd/Makefile | 2 + cmd/armffa.c | 266 +++++ common/board_r.c | 7 + configs/sandbox64_defconfig | 2 + configs/sandbox_defconfig | 2 + doc/arch/sandbox.rst | 1 + drivers/Kconfig | 2 + drivers/Makefile | 1 + drivers/arm-ffa/Kconfig | 32 + drivers/arm-ffa/Makefile | 7 + drivers/arm-ffa/arm-ffa-uclass.c | 102 ++ drivers/arm-ffa/arm_ffa_prv.h | 200 ++++ drivers/arm-ffa/core.c | 1463 +++++++++++++++++++++++++ drivers/arm-ffa/sandbox.c | 735 +++++++++++++ drivers/arm-ffa/sandbox_arm_ffa_prv.h | 128 +++ include/arm_ffa.h | 197 ++++ include/arm_ffa_helper.h | 45 + include/dm/uclass-id.h | 1 + include/linux/arm-smccc.h | 28 +- include/mm_communication.h | 4 +- include/sandbox_arm_ffa.h | 31 + include/sandbox_arm_ffa_helper.h | 26 + lib/Kconfig | 1 + lib/Makefile | 1 + lib/arm-ffa/Kconfig | 6 + lib/arm-ffa/Makefile | 9 + lib/arm-ffa/arm_ffa_helper.c | 188 ++++ lib/arm-ffa/sandbox_arm_ffa_helper.c | 23 + lib/efi_loader/Kconfig | 14 +- lib/efi_loader/efi_boottime.c | 17 + lib/efi_loader/efi_variable_tee.c | 294 ++++- test/cmd/Makefile | 1 + test/cmd/armffa.c | 33 + test/cmd/armffa.h | 13 + test/dm/Makefile | 1 + test/dm/ffa.c | 424 +++++++ test/dm/ffa.h | 22 + 45 files changed, 4415 insertions(+), 11 deletions(-) create mode 100644 cmd/armffa.c create mode 100644 drivers/arm-ffa/Kconfig create mode 100644 drivers/arm-ffa/Makefile create mode 100644 drivers/arm-ffa/arm-ffa-uclass.c create mode 100644 drivers/arm-ffa/arm_ffa_prv.h create mode 100644 drivers/arm-ffa/core.c create mode 100644 drivers/arm-ffa/sandbox.c create mode 100644 drivers/arm-ffa/sandbox_arm_ffa_prv.h create mode 100644 include/arm_ffa.h create mode 100644 include/arm_ffa_helper.h create mode 100644 include/sandbox_arm_ffa.h create mode 100644 include/sandbox_arm_ffa_helper.h create mode 100644 lib/arm-ffa/Kconfig create mode 100644 lib/arm-ffa/Makefile create mode 100644 lib/arm-ffa/arm_ffa_helper.c create mode 100644 lib/arm-ffa/sandbox_arm_ffa_helper.c create mode 100644 test/cmd/armffa.c create mode 100644 test/cmd/armffa.h create mode 100644 test/dm/ffa.c create mode 100644 test/dm/ffa.h