1Amlogic Meson S905x (GXL) 2========================= 3 4The Amlogic Meson S905x is a SoC with a quad core Arm Cortex-A53 running at 51.5Ghz. It also contains a Cortex-M3 used as SCP. 6 7This port is a minimal implementation of BL31 capable of booting mainline U-Boot 8and Linux: 9 10- SCPI support. 11- Basic PSCI support (CPU_ON, CPU_OFF, SYSTEM_RESET, SYSTEM_OFF). Note that CPU0 12 can't be turned off, so there is a workaround to hide this from the caller. 13- GICv2 driver set up. 14- Basic SIP services (read efuse data, enable/disable JTAG). 15 16In order to build it: 17 18.. code:: shell 19 20 CROSS_COMPILE=aarch64-linux-gnu- make DEBUG=1 PLAT=gxl 21 22Or, if willing to boot from U-Boot SPL (using standard params handling): 23 24.. code:: shell 25 26 CROSS_COMPILE=aarch64-linux-gnu- make DEBUG=1 PLAT=gxl AML_STDPARAMS=1 27 28This port has been tested on a Lepotato. After building it, follow the 29instructions in the `gxlimg repository`_ or `U-Boot repository`_, replacing the 30mentioned **bl31.img** by the one built from this port. 31 32.. _gxlimg repository: https://github.com/repk/gxlimg/blob/master/README 33.. _U-Boot repository: https://github.com/u-boot/u-boot/blob/master/doc/board/amlogic/p212.rst 34