PCAP DMA DEST ADDR 0xF800701C: 0xFFFFFFFF When I use U-Boot command "md" to inspect the memory I see that the two offsets are used, and I see a sort of magic number "be00_00ea" at both locations : Xilinx First Stage Boot Loader This time it appear that U-Boot uses the offset address 0x3FF3_7000. I searched on the web and I found that the address where U-Boot extracts itself is defined in include/configs/zynq-common.h by CONFIG_SYS_TEXT_BASE, which appear to be 0x400_0000.īut on an other website I saw that we can print the relocation address in debug mode, so I modified the file common/board_r.c and overwrote the function " initr_announce" to print the " gd->relocaddr" field.
According to the documentation, U-Boot, if loaded from flash, copies itself into RAM, and executes itself from there, but where ? In short, I followed all the steps described on Xilinx User Guide.īut now, before loading the kernel, I wanted to understand what was happening but I can't. Create a boot image containing the FSBL + bitstream + U-Boot (I downloaded the U-Boot sources from the xilinx Git repository).Generate FSBL and FPGA bitstream using the SDK,.So I used the Xilinx tool Vivado and the SDK to generate a BOOT.bin file that is written on an SD card step by step: I'm working on a Xilinx Zynq ZC702 evaluation kit and I'm trying to load a Linux kernel on it using U-Boot. I don't understand what is happening in RAM when loading U-Boot.
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