# SPDX-License-Identifier: GPL-2.0 # # Copyright (c) 2018, Luca Ceresoli if ARCH_ZYNQ || ARCH_ZYNQMP config XILINX_PS_INIT_FILE string "Zynq/ZynqMP PS init file(s) location" help On Zynq and ZynqMP U-Boot SPL (or U-Boot proper if ZYNQMP_PSU_INIT_ENABLED is set) is responsible for some basic initializations, such as enabling peripherals and configuring pinmuxes. The PS init file (called psu_init_gpl.c on ZynqMP, ps7_init_gpl.c for Zynq-7000) contains the code for such initializations. U-Boot contains PS init files for some boards, but each of them describes only one specific configuration. Users of a different board, or needing a different configuration, can generate custom files using the Xilinx development tools. There are three ways to give a PS init file to U-Boot: 1. Set this variable to the path, either relative to the source tree or absolute, where the psu_init_gpl.c or ps7_init_gpl.c file is located. U-Boot will build this file. 2. If you leave an empty string here, U-Boot will use board/xilinx/zynq/$(CONFIG_DEFAULT_DEVICE_TREE)/ps7_init_gpl.c for Zynq-7000, or board/xilinx/zynqmp/$(CONFIG_DEFAULT_DEVICE_TREE)/psu_init_gpl.c for ZynqMP. 3. If the above file does not exist, U-Boot will use board/xilinx/zynq/ps7_init_gpl.c for Zynq-7000, or board/xilinx/zynqmp/psu_init_gpl.c for ZynqMP. This file is not provided by U-Boot, you have to copy it there before the build. endif