Amlogic Meson S905 (GXBB) ========================= The Amlogic Meson S905 is a SoC with a quad core Arm Cortex-A53 running at 1.5Ghz. It also contains a Cortex-M3 used as SCP. This port is a minimal implementation of BL31 capable of booting mainline U-Boot and Linux: - SCPI support. - Basic PSCI support (CPU_ON, CPU_OFF, SYSTEM_RESET, SYSTEM_OFF). Note that CPU0 can't be turned off, so there is a workaround to hide this from the caller. - GICv2 driver set up. - Basic SIP services (read efuse data, enable/disable JTAG). In order to build it: :: CROSS_COMPILE=aarch64-linux-gnu- make DEBUG=1 PLAT=gxbb bl31 This port has been tested in a ODROID-C2. After building it, follow the instructions in the `U-Boot repository`_, replacing the mentioned **bl31.bin** by the one built from this port. .. _U-Boot repository: https://github.com/u-boot/u-boot/blob/master/board/amlogic/odroid-c2/README.odroid-c2