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chaitusvk

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    How to Generate Device tree for Single core Cora Z7

    in Embedded Linux

    Posted

    i am generating device tree with

    " petalinux-create --type project --template zynq --name zybo_acu_linux"

    and config with

    " petalinux-config --get-hw-description ../zynq_acu/"

     

    But ... In device tree i have cpu 1 , PTM and Funnel associated with CPU1 which is not physically present 

        cpus {
    		#address-cells = <1>;
    		#size-cells = <0>;
     
    		cpu0: cpu@0 {
    			compatible = "arm,cortex-a9";
    			device_type = "cpu";
    			reg = <0>;
    			clocks = <&clkc 3>;
    			clock-latency = <1000>;
    			cpu0-supply = <&regulator_vccpint>;
    			operating-points = <
    				/* kHz    uV */
    				666667  1000000
    				333334  1000000
    			>;
    		};
     
    		cpu1: cpu@1 {
    			compatible = "arm,cortex-a9";
    			device_type = "cpu";
    			reg = <1>;
    			clocks = <&clkc 3>;
    		};
    	};
     
    ptm@f889d000 {
    			compatible = "arm,coresight-etm3x", "arm,primecell";
    			reg = <0xf889d000 0x1000>;
    			clocks = <&clkc 27>, <&clkc 46>, <&clkc 47>;
    			clock-names = "apb_pclk", "dbg_trc", "dbg_apb";
    			cpu = <&cpu1>;
    			out-ports {
    				port {
    					ptm1_out_port: endpoint {
    						remote-endpoint = <&funnel0_in_port1>;
    					};
    				};
    			};
    		};

    please help me how to generate proper device tree ...for Single core Cora Z7 i am using petalinux 2021.2

    How to Bulid petalinux for Zybo Z7 in 2021.2

    in Embedded Linux

    Posted

    HI

    i am  to embedded Linux i am trying to Build petalinux on  Zybo Z7 with just Zynq

     

    These Steps i followed

     

    1. Create Viavdo project With Zynq with TTC0 Enabled generated xsa

    2. Created Petalinux project with "petalinux-create --type project --template zynq --name test_peta"

    3. configured Petalinux with "petalinux-config --get-hw-description ../ "

          enabled

    a.image packing configuration to EXT4 (SD card) 

    b. premirror url to downlaoded files

    c. local state feeds to to downloded local sstate

    4. Bulid petalinux with : " petalinux-build" i am able to see files generated in images/linux with out any error

    5. Packaged with "petalinux-package --boot --fsbl images/linux/zynq_fsbl.elf --fpga project-spec/hw-description/design_1_wrapper.bit --uboot --force" i am able to see boot.bin generated

    6. formated the SD in to Two BOOT:fat32, rootfs:ext4 ..

    7. copied "BOOT.BIN,image.ub,boot.scr" to BOOT

    8. tar xvf rootfs.tar.gz -C /media/rootfs

     

    But , i am unable to boot petalinux, previously i used 2019.1 with that i amble to boot ...my green led was glowing then , now not glowing any thing extra i have to activate

    please help ...

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