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https://github.com/brain-hackers/u-boot-brain
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1a005b4ae4
U-Boot on xilinx boards is checking one address where DTB can be placed as the first location for DTB. Originally this code was developed for Versal where QEMU was putting generated DTB for U-Boot to use. The patch enables changing this address which is necessary for cases where default address is pointing to location (DDR) which is not present. The access to this location can cause exception. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
59 lines
2.0 KiB
Plaintext
59 lines
2.0 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0
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#
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# Copyright (c) 2018, Luca Ceresoli <luca@lucaceresoli.net>
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if ARCH_ZYNQ || ARCH_ZYNQMP
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config XILINX_PS_INIT_FILE
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string "Zynq/ZynqMP PS init file(s) location"
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help
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On Zynq and ZynqMP U-Boot SPL (or U-Boot proper if
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ZYNQMP_PSU_INIT_ENABLED is set) is responsible for some
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basic initializations, such as enabling peripherals and
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configuring pinmuxes. The PS init file (called
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psu_init_gpl.c on ZynqMP, ps7_init_gpl.c for Zynq-7000)
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contains the code for such initializations.
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U-Boot contains PS init files for some boards, but each of
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them describes only one specific configuration. Users of a
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different board, or needing a different configuration, can
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generate custom files using the Xilinx development tools.
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There are three ways to give a PS init file to U-Boot:
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1. Set this variable to the path, either relative to the
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source tree or absolute, where the psu_init_gpl.c or
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ps7_init_gpl.c file is located. U-Boot will build this
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file.
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2. If you leave an empty string here, U-Boot will use
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board/xilinx/zynq/$(CONFIG_DEFAULT_DEVICE_TREE)/ps7_init_gpl.c
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for Zynq-7000, or
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board/xilinx/zynqmp/$(CONFIG_DEFAULT_DEVICE_TREE)/psu_init_gpl.c
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for ZynqMP.
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3. If the above file does not exist, U-Boot will use
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board/xilinx/zynq/ps7_init_gpl.c for Zynq-7000, or
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board/xilinx/zynqmp/psu_init_gpl.c for ZynqMP. This file
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is not provided by U-Boot, you have to copy it there
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before the build.
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endif
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config XILINX_OF_BOARD_DTB_ADDR
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hex "Default DTB pickup address"
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default 0x1000 if ARCH_VERSAL
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default 0x100000 if ARCH_ZYNQ || ARCH_ZYNQMP
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depends on OF_BOARD || OF_SEPARATE
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help
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Offset in the memory where the board configuration DTB is placed.
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config BOOT_SCRIPT_OFFSET
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hex "Boot script offset"
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depends on ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_VERSAL
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default 0xFC0000 if ARCH_ZYNQ
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default 0x3E80000 if ARCH_ZYNQMP
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default 0x7F80000 if ARCH_VERSAL
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help
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Specifies distro boot script offset in NAND/NOR flash.
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