ARM RVDS 4.1 could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The following version: 4.1 is the most frequently downloaded one by the program users. The software lies within Development Tools, more precisely Debugging Tools. This program is an intellectual property of ARM Ltd.
From the developer:
The ARM® RVDS™ toolchain is a complete, end-to-end solution for software development supporting all ARM processors and ARM CoreSight™ debug technology. This full-featured product enables developers to begin software development, optimization and test ahead of silicon availability, significantly reducing application time-to-market and ensuring the highest degree of software quality.
You may want to check out more software, such as ARM, ARM DS-5 or GNU Tools for ARM Embedded Processors, which might be similar to ARM RVDS.