diff options
Diffstat (limited to 'cpu/at91rm9200/at91rm9200_ether.c')
| -rw-r--r-- | cpu/at91rm9200/at91rm9200_ether.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/cpu/at91rm9200/at91rm9200_ether.c b/cpu/at91rm9200/at91rm9200_ether.c index 2ec888f213..0bc1d89ed0 100644 --- a/cpu/at91rm9200/at91rm9200_ether.c +++ b/cpu/at91rm9200/at91rm9200_ether.c @@ -210,6 +210,11 @@ int eth_init (bd_t * bd) p_mac->EMAC_CFG |= AT91C_EMAC_RMII; #endif +#if (AT91C_MASTER_CLOCK > 40000000) + /* MDIO clock must not exceed 2.5 MHz, so enable MCK divider */ + p_mac->EMAC_CFG |= AT91C_EMAC_CLK_HCLK_64; +#endif + p_mac->EMAC_CTL |= AT91C_EMAC_TE | AT91C_EMAC_RE; at91rm92000_GetPhyInterface (& PhyOps); |