These patch series introduce a generic rng driver for Trustzone based kernel driver which would like to communicate with ATF SIP services. Patch #1 initials SMC fid table for Mediatek SIP interfaces and adds HWRNG related SMC call. Patch #2..3 adds mt67xx-rng kernel driver for Trustzone based SoCs. For Mediatek SoCs on ARMv8 with TrustZone enabled, peripherals like entropy sources is not accessible from normal world (linux) and rather accessible from secure world (ATF/TEE) only. This driver aims to provide a generic interface to ATF rng service. Neal Liu (3): soc: mediatek: add SMC fid table for SIP interface dt-bindings: rng: update bindings for MT67xx SoCs hwrng: add mt67xx-rng driver Documentation/devicetree/bindings/rng/mtk-rng.txt | 13 ++- drivers/char/hw_random/Kconfig | 16 ++++ drivers/char/hw_random/Makefile | 1 + drivers/char/hw_random/mt67xx-rng.c | 104 +++++++++++++++++++++ include/linux/soc/mediatek/mtk_sip_svc.h | 55 +++++++++++ 5 files changed, 186 insertions(+), 3 deletions(-) create mode 100644 drivers/char/hw_random/mt67xx-rng.c create mode 100644 include/linux/soc/mediatek/mtk_sip_svc.h -- 1.7.9.5
