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# SPDX-License-Identifier: GPL-2.0
#
# Copyright (c) 2018, Luca Ceresoli <luca@lucaceresoli.net>
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
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