Fast Models Reference Manual - ARM Information Center

Peripheral and Interface Components
Parameters
Table 5-110 lists the parameters for the IntelStrataFlashJ3 component.
Table 5-110 IntelStrataFlashJ3 configuration parameters
Parameter
name
Description
Type
Allowed
value
Default
value
size
Set the size of the
component in bytes
Integer
must be a
power of 2
64MB
Registers
In normal operation the IntelStrataFlashJ3 component has no user visible registers. The device
responds to the Common Flash Interface protocol which allows the device to be programmed at
runtime. See general flash programming documentation on how to use the interface.
Debug features
The IntelStrataFlashJ3 component can be read/written using normal debugWrites.
Verification and testing
The IntelStrataFlashJ3 component has been tested as part of the VE example system using VE
test suites and by booting operating systems.
Performance
The IntelStrataFlashJ3 component is not expected to significantly affect the performance of a
PV system.
Library dependencies
The IntelStrataFlashJ3 component has no dependencies on external libraries.
5.4.40 VFS2 component
The Virtual File System (VFS), implemented in the VFS2 component, is a virtual device that
provides access to parts of the underlying host filesystem through a target OS-specific driver.
The component is virtual, so you might need to write your own driver. Example drivers are
provided in Fast Models, or are available from ARM. These drivers are for bare metal, written
in C++, and for Linux, written in C. Much of the driver code can be reused for porting to other
operating systems.
There are two use cases for the VFS component, which are more fully described in the text files
that accompany the examples:
• Using a Linux kernel patch to add the supplied VFS driver to Linux. This example can be
requested from ARM.
• Writing a driver for a different OS. See the WritingADriver.txt file in the VFS2/docs
directory.
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