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Loading u-boot to the secondary core

Yusuf Kara
Prodigy 40 points

Dear all , I am trying to load u-boot to the CortexA15_3 which is the second core of ARM core pack. I can connect the core 0 through debugger but for core 1 I did not. Why ?

http://processors.wiki.ti.com/index.php/MCSDK_UG_Chapter_Exploring#Running_U-Boot.2C_Boot_Monitor_and_Linux_Kernel_on_EVM 

  • 0
    TI__Mastermind 43955 points

    Hi Yusuf kara,

    First, We would like to know the purpose of connecting it to the second core of ARM, CoretexA15_3

    I don't think we can connect the second core to the debugger. It will get an error message as "Connect to PRSC failed".

     

    Regards,

    Shankari

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  • 0 in reply to Shankari G
    Prodigy 40 points

    I want to use both 4 ARM Cores seperately in AMP mode. I want to execute the linux on core 0 and core 1. And I want to execute  bare metal programs on core3  or core 4. Yes I got the same message for Core 1 "Connect to PRSC failed". But if I use mon_power and power the core 1 up then I can connect.

  • 0 in reply to Yusuf Kara
    TI__Mastermind 43955 points

    Hi Yusuf,

    Thanks for the information.

    After connecting to CortexA15_3 ( i.e., core 1), through CCS,

    You can modify the loadlin-evm-uboot.js, load it for the second time and try to load the u-boot.bin to the secondary core.

    For example:- ( one of the modifications in  loadlin-evm-uboot.js )

    1. Change the below line as

    var sessionName       = "Texas Instruments XDS2xx USB Emulator_0/CortexA15_1";

    var sessionName       = "Texas Instruments XDS2xx USB Emulator_0/CortexA15_3";

    Try trace through the entire *.js and look for modification needed.

    Please update us how it goes.

    Regards,

    Shankari

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