ALTERA DOES NOT WARRANT THAT THE FUNCTIONS CONTAINED IN THIS PATCH 
WILL MEET YOUR REQUIREMENTS, OR THAT THE OPERATION OF THIS PATCH 
WILL BE UNINTERRUPTED OR ERROR-FREE. 

//**************************************************************** 
quartus-10.1-0.11-readme.txt 
Readme file for Quartus II 10.1 Patch 0.11
Copyright (C) Altera Corporation 2010 All right reserved. 
Patch created on January 26 2011
Patch SPR#: 361417 
SPRs fixed: 361143
//**************************************************************** 

Problem:  The transceiver link for PCIe Gen2 mode
          may not be established because the rate switch
          controller may not be initialized correctly. 


Solution: This patch resolves the initialization problem by fixing
          the PCIe Gen2 IP megafunction, allowing the link to be
          established.

        o This fix updates the logic which drives the SERDES rateswitch
        	and tx_digitalreset ports; where the de-assertion of tx_digitalreset
          occurs only if the serdes output pll_loked is being stable
          for 127 clock cycles and updated the S4GX/GT and A2GZ reset controller
          logic to address a wider range of time after the release of
          PERST to the beginning of link negotiation.

        o This fix affects the following PCI Express configurations:
        	 - PCIe Gen 2 x1/x4/x8 modes (Stratix IV GX/GT)
        	 - PCIe Gen 2 x1/x4 modes (Arria II GZ)
        	 - Hard IP (PCIe compiler flow)
           - Soft IP (ALTGX based flow)
           
        o Device family : Stratix IV GX/GT
                          Arria II GZ

          You need to manually update the megafunction instantiation
          file to apply the fix.  Follow these steps:

          For PCI Express Compiler flow:
          1. Re-run the PCI Express compiler on your existing PCIe
             <variant>.v|vhd
   
          2. Update the PCI Express compiler generated serdes file ("
             <variant>_serdes.v|vhd); From the same project directory
             where the megafunction instantiation exists, run the
             command below from the command line: 

             qmegawiz -silent -wiz_override="enable_pcie_gen2_reset=true" <variant>_serdes.v|vhd
                     
          3. Recompile your project.


          For ALTGX based flow:
          1. Locate the ALTGX megafunction instantiation file.

          2. From the same project directory where the megafunction
             instantiation exists, run the command below from the
             command line.  This command will overwrite your
             megafunction instantiation.

             qmegawiz -silent -wiz_override="enable_pcie_gen2_reset=true" <filename>
             
             <filename> is the name of the ALTGX megafunction instantiation.

          3. Recompile your project.



Caution - You must either have previously installed the 
          Quartus II 10.1 software or must 
          install the Quartus II 10.1 software 
          before installing this patch. Otherwise, the patch will 
          not be installed correctly and the Quartus II 
          software will not run properly.