2.6 Juno SoC configuration

Some of the configuration settings for the Juno SoC are exposed through the board.txt file located in SITE1/HBI0262[B/C/D]. These include settings for PLL frequencies, clocks, and entry point addresses for the SCP and AP ROM firmware images.

The following example shows a typical board.txt file.

Note

ARM recommends that you do not modify any values in this file unless you have a specific need to do so. Incorrect values can result in instability or an inability to boot the SCP Firmware and ARM Trusted Firmware successfully.

Example 2-2 board.txt file

BOARD: HBI0262
TITLE: V2M-Juno DevChip Configuration File
[SCC REGISTERS]
TOTALSCCS: 9
SCC: 0x10C 0x00019300 ;A53 PLL Register 1
SCC: 0x0F8 0x0BEC0000 ;BL1 entry point
SCC: 0xA14 0x00000000 ;PCLKDBG_CONTROL DIV=1
SCC: 0x118 0x003F1000 ;SYS PLL Register 0 (1600MHz)
SCC: 0x11C 0x0001F100 ;SYS PLL Register 1
SCC: 0x100 0x003F1000 ;A57/A72 PLL Register 0 (800MHz)
SCC: 0x104 0x0001F300 ;A57/A72 PLL Register 1
SCC: 0x0FC 0xABE40000 ;BL0 entry point
SCC: 0x108 0x00331000 ;A53 PLL Register 0 (650MHz)
Non-ConfidentialPDF file icon PDF versionARM DEN0928F
Copyright © 2015 ARM. All rights reserved.