启动时只打印这些log，是哪里有问题啊
[115]rank1 config same as rank0
[118]DRAM BOOT DRIVE INFO: %s
[121]DRAM CLK = 792 MHz
[123]DRAM Type = 3 (2:DDR2,3:DDR3)
[126]DRAMC ZQ value: 0x7b7bfb
[129]DRAM ODT value: 0x42.
[131]ddr_efuse_type: 0x0
[134]DRAM SIZE =1024 M
[138]DRAM simple test OK.