Amlogic Meson S905X2 (G12A) =========================== The Amlogic Meson S905X2 is a SoC with a quad core Arm Cortex-A53 running at ~1.8GHz. 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: .. code:: shell CROSS_COMPILE=aarch64-linux-gnu- make DEBUG=1 PLAT=g12a This port has been tested on a SEI510 board. After building it, follow the instructions in the `gxlimg repository` or `U-Boot repository`_, replacing the mentioned **bl31.img** by the one built from this port. .. _gxlimg repository: https://github.com/repk/gxlimg/blob/master/README.g12a .. _U-Boot repository: https://github.com/u-boot/u-boot/blob/master/board/amlogic/sei510/README