ARM Juno ARM, Getting Started Manual

2.3 

Flash memory programming

This section describes flash memory programming.

Note

If you are using the recovery images or following the Linaro software release instructions, the firmware
or configuration files do not need to be changed.

For an image file to be programmed into the V2M-Juno motherboard flash memory, it must first be
placed onto the SD card filesystem. Each image must also have a corresponding entry in the 

SITE1/

HBI0262[B/C/D]/images.txt

 file. This file is used by the V2M-Juno motherboard firmware to

determine which images to program into flash memory at boot time.

Note

ARM recommends that all SoC software images to be loaded are placed in the 

SOFTWARE

 directory of the

SD card.

The following example illustrates the required format for the 

images.txt file

. The number of entries

is likely to differ on a newly received V2M-Juno motherboard.

Example 2-1  Images.txt file format

TITLE: Versatile Express Images Configuration File

[IMAGES]

TOTALIMAGES: 2                     ;Number of Images (Max: 32)

NOR0UPDATE: AUTO                   ;Image Update:NONE/AUTO/FORCE

NOR0ADDRESS: 0x00000000            ;Image Flash Address

NOR0FILE: \SOFTWARE\fip.bin        ;Image File Name

NOR0LOAD: 00000000                 ;Image Load Address

NOR0ENTRY: 00000000                ;Image Entry Point

NOR1UPDATE: AUTO                   ;Image Update:NONE/AUTO/FORCE

NOR1ADDRESS: 0x03EC0000            ;Image Flash Address

NOR1FILE: \SOFTWARE\bl1.bin        ;Image File Name

NOR1LOAD: 00000000                 ;Image Load Address

NOR1ENTRY: 00000000                ;Image Entry Point

The

 TOTALIMAGES

 value informs the V2M-Juno motherboard firmware of the number of images to be

programmed into the flash memory of the board. It must match the number of entries that follow it. If the
value is too low, that is, smaller than the number of images, some images are not programmed into the
flash memory. If it is too high, then the behavior of the V2M-Juno motherboard firmware is 

UNDEFINED

.

Note

The numbering for images begins at zero. For example, 

NOR0UPDATE

, 

NOR1UPDATE

.

Each entry must have a consistent format that matches the examples that are given. The 

NOR[x]

 naming

prefix must increment with every new entry.

You can define a maximum of 32 entries, with 

NOR31

 being the highest possible prefix name. Above this

value, the behavior of the motherboard firmware is 

UNDEFINED

.

For each 

NOR[x]

 image, the following fields are required:

UPDATE

2 Configuration

2.3 Flash memory programming

ARM DEN0928F

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2-19

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