Intel® Arria® 10 SoC UEFI Boot Loader User Guide

ID 683536
Date 12/15/2017
Document Table of Contents

1.10. Pit Stop Utility Guide

Approximate time: 10 minutes

You can use the Pit Stop Utility to debug the Intel® Arria® 10 SoC UEFI Bootloader. This tool is available during the on-chip RAM boot phase after the HPS initialization and prior to booting to the subsequent SDRAM boot phase. When enabled, the tool prompts you with the message “Press any key in N seconds to enter Pit Stop utility”. This light weight command-line interpreter provides a fixed list of useful debug commands, such as:

  • Memory related commands: memory read, memory write, memory dump and memory compare.
  • QSPI/NAND Flash commands: probe, read, write, erase and update.
  • SD/MMC commands: block read and write.
  • FAT32 file system commands: list files, HEX dump of file and reading an entire file into memory.
  • CPU jump command: hands off to a program loaded at a specific memory offset address.