mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
53c69dec33
Currently "script_offset_f" env variable is hardcoded, this variable specifies from which offset of the flash boot.scr should be read/write. As flashes are of different sizes having a fixed offset makes it difficult to load other images into the flash which may overwrite the boot script or cannot utilize the full memory. This current fix creates a new config "CONFIG_BOOT_SCRIPT_OFFSET" which holds the offset address, overwrites the "script_offset_f" variable. Also removed existing variable with default values, as the default values are held by CONFIG_BOOT_SCRIPT_OFFSET Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com> 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
|
|
#
|
|
# 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.
|
|
|
|
config BOOT_SCRIPT_OFFSET
|
|
hex "Boot script offset"
|
|
depends on ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_VERSAL
|
|
default 0xFC0000 if ARCH_ZYNQ
|
|
default 0x3E80000 if ARCH_ZYNQMP
|
|
default 0x7F80000 if ARCH_VERSAL
|
|
help
|
|
Specifies distro boot script offset in NAND/NOR flash.
|