nixos-hardware/microchip/common/bsp/uboot.yaml

#
# HSS Payload Generator - sample configuration file
#

# First, we can optionally set a name for our image, otherwise one will be created
# dynamically
set-name: 'PolarFire-SoC-HSS::U-Boot'

#
# Next, we'll define the entry point addresses for each hart, as follows:
#
hart-entry-points: {u54_1: '0x80200000', u54_2: '0x80200000', u54_3: '0x80200000', u54_4: '0x80200000'}

#
# Finally, we'll define some payloads (source ELF files) that will be placed at certain
# regions in memory
# The payload section is defined with the keyword payloads, and then a number of
# individual
# payload descriptors.
#
# Each payload has a name (path to its ELF file), an owner-hart, and optionally 1-3
# secondary-harts.
#
# Additionally, it has a privilege mode in which it will start execution.
#  * Valid privilege modes are PRV_M, PRV_S and PRV_U.
#
#
# In the following example:
#  * test/u-boot-icicle-kit-es-2020.10-r0.bin is the Das U-Boot bootloader (binary +
#    concatenated DTB), and it runs on U54_1, U54_2 and U54_4.
#    It expects to start in PRV_S.
#
# Case only matters for the ELF path names, not the keywords.
#
payloads:
  u-boot.bin: {exec-addr: '0x80200000', owner-hart: u54_1, secondary-hart: u54_2, secondary-hart: u54_3, secondary-hart: u54_4, priv-mode: prv_s}