Debug cannot enter main function when target is DDR
I have some questions about the U-boot. The hardware board is designed by myself. The SoC is 10AS016E4F27E3SG. I run the Bootloader on the board and print the following information： U-Boot 2014.10 (May 25 2018 - 14:37:47) CPU : Altera SOCFPGA Arria 10 Platform BOARD : Altera SOCFPGA Arria 10 Dev Kit I2C: ready DRAM: WARNING: Caches not enabled SOCFPGA DWMMC: 0 FPGA: writing socfpga.rbf ... Full Configuration Succeeded. DDRCAL: Success INFO : Skip relocation as SDRAM is non secure memory Reserving 2048 Bytes for IRQ stack at: ffe386e8 DRAM : 1 GiB WARNING: Caches not enabled Can I think that the DDR hardware circuit is correct? Debug can enter main function when target is onchip-ram but debug cannot enter main function when target is DDR,what should i do?