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)
2 Configuration
2.6 Juno SoC configuration
ARM DEN0928F
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2-23
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