Intel® Stratix® 10 Hard Processor System Remote System Update User Guide

ID 683021
Date 11/10/2021

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Document Table of Contents

6.2. Decision Firmware Data

The decision firmware data contains parameters taken from the SOF file used for the factory image, which includes the QSPI clock configuration, the force factory load pin, the value of max_retry parameter and the selected behavior for the HPS watchdog.

There is one copy of the decision firmware data, and it is protected by a checksum. If the decision firmware detects that the decision firmware data has been corrupted, it loads the factory image, and reports the error through RSU_STATUS with a special error code.

Once you see that the decision firmware data is corrupted, you can recover it by running either a factory update image or a decision firmware update image. Both options update the decision firmware and the decision firmware data, while the factory update image also updates the factory image.