CPU1: failed to come online

[Altera_Forum]

Hi, 

 I'm faced with Soc bootloading issue when generating the preloader:  Context:  - Tools: QUARTUS_VERSION 15.0.0  - HW: Cyclone V - 5CSXFC6D6F31C6  - SW: boot from MMC  Before:  - A design works fine with two cores activated.  Action:  - From the working design, Preloader is been re-generated using bsp-editor.  Now:  - cpu0 activated, cpu1 failed to come online.  Question: how to activate cpu1 ?

[Altera_Forum]

Hi, did you added in the cpu start address from the DTS generation?

[Altera_Forum]

--- Quote Start ---  Hi, did you added in the cpu start address from the DTS generation?  --- Quote End ---    in "soc_system.dts" file:  hps_sysmgr: sysmgr@0xffd08000 {  compatible = "altr,sys-mgr-14.0", "altr,sys-mgr", "syscon";  reg = < 0xFFD08000 0x00004000 >;  cpu1-start-addr = < 4291854532 >; /* embeddedsw.dts.params.cpu1-start-addr type NUMBER */  }; //end sysmgr@0xffd08000 (hps_sysmgr)  dtc file has not replaced into mmc: it is the same before and after preloader re-generation.

[Altera_Forum]

check out for the key word "cpu1", be sure not to change the kernel version(in case if you rebuild your self). 

 http://rocketboards.org/foswiki/view/documentation/gsrdv151devicetreegenerator

[Altera_Forum]

DeviceTree file (dtc) and kernel image (zImage) have not been changed. The only change made on the SD card is preloader.

[Altera_Forum]

Preloader will leave cpu1 in default state / power on state which is in reset.  

cpu1 will be brought out by Linux from Linux.

[Altera_Forum]

That's probably right. But I don't manage to understand why regenerating preloader prevents linux to brought out cpu1.

[Altera_Forum]

--- Quote Start ---  DeviceTree file (dtc) and kernel image (zImage) have not been changed. The only change made on the SD card is preloader.  --- Quote End ---    hi, to enable the cpu1, you maybe need to enable this in device tree, and not the preloader. Maybe you can explain alittle more what are your ACTIONS did..