AM335x does not support multiple link interrupts...only MDIO_LINKINT[0] and MDIO_USERINT[0] are used on this device (see current TRM section 14.3.1.3.4). For multi-port configurations, it would be necessary to poll MDIOLINKINTRAW to discover link status changes (TRM 14.3.8.2) on both attached PHYs.
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