Why does my Cyclone V SoC or Arria V SoC design hang on boot or fail SDRAM calibration?

Due to a problem, Cyclone® V SoC and Arria® V SoC devices may encounter the following issues for configurations with clock select (CSEL) pins set to values of  01, 10 or 11:

1. The HPS hangs during the BootROM stage and is unable to proceed to the Preloader stage.
2. HPS SDRAM calibration fails during the Preloader process.
   

A patch for the Quartus® II software / SoC EDS versions 13.1 and 14.0 is available to work around this problem,  follow the instructions below.

1. Download and install the patch from the appropriate link below
   • SoC EDS version 14.0
     • Download patch 0.01soc for SoC EDS version 14.0 for Windows (.exe)
     • Download patch 0.01soc for SoC EDS version 14.0 for Linux(.run)
     • Download the Readme for patch 0.01soc for SoC EDS version 14.0 (.txt)
   • SoC EDS version 13.1
     • Download patch 0.03soc for SoC EDS version 13.1 for Windows (.exe)
     • Download patch 0.03soc for SoC EDS version 13.1 for Linux(.run)
     • Download the Readme for patch 0.03soc for SoC EDS version 13.1 (.txt)
   • Notes:
     - Install the patch to <ACDS install path>/altera/<version>/ directory.
     - This patch uses the upper 4 Kbytes of the HPS on-chip RAM (OCRAM). Hence, your software that runs after Preloader must not modify the upper 4 Kbytes of the OCRAM.
     

• Connect the CSEL pins [1:0] to pull-down to ground resistors (4.7 kohm to 10 kohm) on the board, CSEL=00. In this CSEL mode the BootROM does not perform PLL configuration and the PLLs are in by-pass state upon power-up or cold reset.

• Regenerate the Preloader image
1. Launch embedded command shell
   
   • On Windows systems, run the batch file:  <SoCEDS installation Folder>\embedded\Embedded_Command_Shell.bat
   • On Linux systems, run the shell script:  <SoCEDS installation Folder>\embedded\embedded_command_shell.sh
2. In the command shell, change directory to <your_design_path>/software/spl_bsp
3. Type make clean-all
   
   • Note: This command removes the Preloader binary image and the uboot-socfpga folder which contains all Preloader source files. If you modified or added files into this folder previously,you should back-up those files and re-apply them after using this patch.
4. Type make
   
   • Note: Re-making the Preloader invokes extracting the Preloader source files from SoC EDS installation directory which contains the fix to this issue.