diff options
Diffstat (limited to 'cpu/ppc4xx/440gx_enet.c')
| -rw-r--r-- | cpu/ppc4xx/440gx_enet.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/cpu/ppc4xx/440gx_enet.c b/cpu/ppc4xx/440gx_enet.c index 91cf240ac..54b25a56c 100644 --- a/cpu/ppc4xx/440gx_enet.c +++ b/cpu/ppc4xx/440gx_enet.c @@ -437,6 +437,22 @@ static int ppc_440x_eth_init (struct eth_device *dev, bd_t * bis) */ if ( ((devnum == 2) || (devnum ==3)) && (4 == ethgroup) ) { miiphy_write (reg, 23, 0x1200); + /* + * Vitesse VSC8201/Cicada CIS8201 errata: + * Interoperability problem with Intel 82547EI phys + * This work around (provided by Vitesse) changes + * the default timer convergence from 8ms to 12ms + */ + miiphy_write (reg, 0x1f, 0x2a30); + miiphy_write (reg, 0x08, 0x0200); + miiphy_write (reg, 0x1f, 0x52b5); + miiphy_write (reg, 0x02, 0x0004); + miiphy_write (reg, 0x01, 0x0671); + miiphy_write (reg, 0x00, 0x8fae); + miiphy_write (reg, 0x1f, 0x2a30); + miiphy_write (reg, 0x08, 0x0000); + miiphy_write (reg, 0x1f, 0x0000); + /* end Vitesse/Cicada errata */ } #endif #endif @@ -917,7 +933,7 @@ int enetInt (struct eth_device *dev) mtdcr (uic0sr, UIC_MTE); } /* handle MAL RX EOB interupt from a receive */ - /* check for EOB on valid channels */ + /* check for EOB on valid channels */ if (my_uic0msr & UIC_MRE) { mal_rx_eob = mfdcr (malrxeobisr); if ((mal_rx_eob & (0x80000000 >> hw_p->devnum)) != 0) { /* call emac routine for channel x */ @@ -1033,9 +1049,9 @@ static void enet_rcv (struct eth_device *dev, unsigned long malisr) MAX_ERR_LOG) hw_p->rx_err_index = 0; - } /* emac_erros */ + } /* emac_erros */ } /* data_len < max mtu */ - } /* if data_len */ + } /* if data_len */ if (!data_len) { /* no data */ hw_p->rx[i].ctrl |= MAL_RX_CTRL_EMPTY; /* Free Recv Buffer */ |