static int at91_ether_set_ethaddr(struct eth_device *eth, unsigned char *adr)
{
int i;
/* The CSB337 originally used a version of the MicroMonitor bootloader
* which saved Ethernet addresses in the "wrong" order. Operating
* systems (like Linux) know this, and apply a workaround. Replicate
* that MicroMonitor behavior so we avoid needing to make such OS code
* care about which bootloader was used.
*/
if (machine_is_csb337()) {
at91_emac_write(AT91_EMAC_SA2H,
(adr[0] << 8) | (adr[1]));
at91_emac_write(AT91_EMAC_SA2L,
(adr[2] << 24) | (adr[3] << 16)
| (adr[4] << 8) | (adr[5]));
} else {
at91_emac_write(AT91_EMAC_SA2L,
(adr[3] << 24) | (adr[2] << 16)
| (adr[1] << 8) | (adr[0]));
at91_emac_write(AT91_EMAC_SA2H,
(adr[5] << 8) | (adr[4]));
}
for (i = 0; i < 5; i++)
debug ("%02x:", adr[i]);
debug ("%02x\n", adr[5]);
return 0;
}
int eth_init (bd_t * bd)
{
int ret;
int i;
uchar enetaddr[6];
p_mac = AT91C_BASE_EMAC;
/* PIO Disable Register */
*AT91C_PIOA_PDR = AT91C_PA16_EMDIO | AT91C_PA15_EMDC | AT91C_PA14_ERXER |
AT91C_PA13_ERX1 | AT91C_PA12_ERX0 | AT91C_PA11_ECRS_ECRSDV |
AT91C_PA10_ETX1 | AT91C_PA9_ETX0 | AT91C_PA8_ETXEN |
AT91C_PA7_ETXCK_EREFCK;
#ifdef CONFIG_AT91C_USE_RMII
*AT91C_PIOB_PDR = AT91C_PB19_ERXCK;
*AT91C_PIOB_BSR = AT91C_PB19_ERXCK;
#else
*AT91C_PIOB_PDR = AT91C_PB19_ERXCK | AT91C_PB18_ECOL | AT91C_PB17_ERXDV |
AT91C_PB16_ERX3 | AT91C_PB15_ERX2 | AT91C_PB14_ETXER |
AT91C_PB13_ETX3 | AT91C_PB12_ETX2;
/* Select B Register */
*AT91C_PIOB_BSR = AT91C_PB19_ERXCK | AT91C_PB18_ECOL |
AT91C_PB17_ERXDV | AT91C_PB16_ERX3 | AT91C_PB15_ERX2 |
AT91C_PB14_ETXER | AT91C_PB13_ETX3 | AT91C_PB12_ETX2;
#endif
*AT91C_PMC_PCER = 1 << AT91C_ID_EMAC; /* Peripheral Clock Enable Register */
p_mac->EMAC_CFG |= AT91C_EMAC_CSR; /* Clear statistics */
/* Init Ethernet buffers */
for (i = 0; i < RBF_FRAMEMAX; i++) {
rbfdt[i].addr = (unsigned long)rbf_framebuf[i];
rbfdt[i].size = 0;
}
rbfdt[RBF_FRAMEMAX - 1].addr |= RBF_WRAP;
rbfp = &rbfdt[0];
eth_getenv_enetaddr("ethaddr", enetaddr);
/* The CSB337 originally used a version of the MicroMonitor bootloader
* which saved Ethernet addresses in the "wrong" order. Operating
* systems (like Linux) know this, and apply a workaround. Replicate
* that MicroMonitor behavior so we avoid needing to make such OS code
* care about which bootloader was used.
*/
if (machine_is_csb337()) {
p_mac->EMAC_SA2H = (enetaddr[0] << 8) | (enetaddr[1]);
p_mac->EMAC_SA2L = (enetaddr[2] << 24) | (enetaddr[3] << 16)
| (enetaddr[4] << 8) | (enetaddr[5]);
} else {
p_mac->EMAC_SA2L = (enetaddr[3] << 24) | (enetaddr[2] << 16)
| (enetaddr[1] << 8) | (enetaddr[0]);
p_mac->EMAC_SA2H = (enetaddr[5] << 8) | (enetaddr[4]);
}
p_mac->EMAC_RBQP = (long) (&rbfdt[0]);
p_mac->EMAC_RSR &= ~(AT91C_EMAC_RSR_OVR | AT91C_EMAC_REC | AT91C_EMAC_BNA);
p_mac->EMAC_CFG = (p_mac->EMAC_CFG | AT91C_EMAC_CAF | AT91C_EMAC_NBC)
& ~AT91C_EMAC_CLK;
#ifdef CONFIG_AT91C_USE_RMII
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;
at91rm9200_GetPhyInterface (& PhyOps);
if (!PhyOps.IsPhyConnected (p_mac))
printf ("PHY not connected!!\n\r");
/* MII management start from here */
if (!(p_mac->EMAC_SR & AT91C_EMAC_LINK)) {
if (!(ret = PhyOps.Init (p_mac))) {
printf ("MAC: error during MII initialization\n");
return 0;
}
} else {
printf ("No link\n\r");
return 0;
}
return 0;
}
