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dm8107的EMAC[1]_GMTCLK输出125M时钟



请问一下: 怎样配置能使dm8107的EMAC[1]_GMTCLK输出125M时钟

我现在的配置,选择时钟源为__raw_writel(0x0, RMII_REFCLK_SRC);  vedio0
vedio0的时钟我配置了125M
我用示波器测了EMAC[0]_GMTCLK能正常输出125M,但是EMAC[1]_GMTCLK不能,请问EMAC[1]_GMTCLK与EMAC[0]_GMTCLK在配置上有什么区别吗?pinmux我也设置了