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srio boot问题咨询



请问一下,现在我们是用evm6678同交换芯片连接,想通过ppc经过srio来boot你们的evm。将evm的跳线拨成srio boot模式,系统上电后,通过仿真器看evm的srio的端口状态寄存器0x290b158,怎么显示全零呢?难道evm不自己初始化srio端口吗?物理层不通,ppc怎么通过srio加载程序呢?望解惑,谢谢