Hi, I'm now porting coreboot to CubieTruck, a development board with an Allwinner A20 SoC. I use Mr.Nuke's code[1] and Allwinner's user manual for reference.However, when I modified the code and tested with the board, the console gave only two lines of message and it get stuck. So I thought DRAM init failed. I put some printks at bootblock_media.c, and found the bug occurs at line 118[2], which showed the access of a certain memory space caused the error. So I need to know how to check if the DRAM init works.
Thanks Iru Cai [1] https://github.com/mrnuke/coreboot/tree/cubie_mmc [2] https://github.com/mrnuke/coreboot/blob/cubie_mmc/src/cpu/allwinner/a10/bootblock_media.c#L118
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