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ffec: Avoid AXI bus issues due to a MAC reset

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Sebastian Huber
2017-09-27 09:42:10 +02:00
parent ba0b05902b
commit e2e4bf4999
1 changed files with 8 additions and 1 deletions
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7
freebsd/sys/dev/ffec/if_ffec.c
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@@ -1656,6 +1656,13 @@ ffec_attach(device_t dev)
ffec_get_hwaddr(sc, eaddr); ffec_get_hwaddr(sc, eaddr);
/* Reset the hardware. Disables all interrupts. */ /* Reset the hardware. Disables all interrupts. */
if (sc->fectype & FECFLAG_AVB)
/*
* Avoid AXI bus issues due to a MAC reset, see Linux for more
* details.
*/
WR4(sc, FEC_ECR_REG, 0);
else
WR4(sc, FEC_ECR_REG, FEC_ECR_RESET); WR4(sc, FEC_ECR_REG, FEC_ECR_RESET);
/* Setup interrupt handler. */ /* Setup interrupt handler. */