| # 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 |
| |
| config XILINX_OF_BOARD_DTB_ADDR |
| hex |
| default 0x1000 if ARCH_VERSAL |
| default 0x100000 if ARCH_ZYNQ || ARCH_ZYNQMP |
| depends on OF_BOARD |
| help |
| Offset in the memory where the board configuration DTB is placed. |