* In this function, the hardware should be initialized. * Called from tivaif_init(). * * @param netif the already initialized lwip network interface structure * for this ethernetif */
| 345 | * for this ethernetif |
| 346 | */ |
| 347 | static void |
| 348 | tivaif_hwinit(struct netif *psNetif) |
| 349 | { |
| 350 | uint16_t ui16Val; |
| 351 | |
| 352 | /* clear the EEE Link Active flag */ |
| 353 | #if EEE_SUPPORT |
| 354 | g_bEEELinkActive = false; |
| 355 | #endif |
| 356 | |
| 357 | /* Set MAC hardware address length */ |
| 358 | psNetif->hwaddr_len = ETHARP_HWADDR_LEN; |
| 359 | |
| 360 | /* Set MAC hardware address */ |
| 361 | EMACAddrGet(EMAC0_BASE, 0, &(psNetif->hwaddr[0])); |
| 362 | |
| 363 | /* Maximum transfer unit */ |
| 364 | psNetif->mtu = 1500; |
| 365 | |
| 366 | /* Device capabilities */ |
| 367 | psNetif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP; |
| 368 | |
| 369 | /* Initialize the DMA descriptors. */ |
| 370 | InitDMADescriptors(); |
| 371 | |
| 372 | #if defined(EMAC_PHY_IS_EXT_MII) || defined(EMAC_PHY_IS_EXT_RMII) |
| 373 | /* If PHY is external then reset the PHY before configuring it */ |
| 374 | EMACPHYWrite(EMAC0_BASE, PHY_PHYS_ADDR, EPHY_BMCR, |
| 375 | EPHY_BMCR_MIIRESET); |
| 376 | |
| 377 | while((EMACPHYRead(EMAC0_BASE, PHY_PHYS_ADDR, EPHY_BMCR) & |
| 378 | EPHY_BMCR_MIIRESET) == EPHY_BMCR_MIIRESET); |
| 379 | #endif |
| 380 | |
| 381 | /* Clear any stray PHY interrupts that may be set. */ |
| 382 | ui16Val = EMACPHYRead(EMAC0_BASE, PHY_PHYS_ADDR, EPHY_MISR1); |
| 383 | ui16Val = EMACPHYRead(EMAC0_BASE, PHY_PHYS_ADDR, EPHY_MISR2); |
| 384 | |
| 385 | /* Configure and enable the link status change interrupt in the PHY. */ |
| 386 | ui16Val = EMACPHYRead(EMAC0_BASE, PHY_PHYS_ADDR, EPHY_SCR); |
| 387 | ui16Val |= (EPHY_SCR_INTEN_EXT | EPHY_SCR_INTOE_EXT); |
| 388 | EMACPHYWrite(EMAC0_BASE, PHY_PHYS_ADDR, EPHY_SCR, ui16Val); |
| 389 | EMACPHYWrite(EMAC0_BASE, PHY_PHYS_ADDR, EPHY_MISR1, (EPHY_MISR1_LINKSTATEN | |
| 390 | EPHY_MISR1_SPEEDEN | EPHY_MISR1_DUPLEXMEN | EPHY_MISR1_ANCEN)); |
| 391 | |
| 392 | /* Read the PHY interrupt status to clear any stray events. */ |
| 393 | ui16Val = EMACPHYRead(EMAC0_BASE, PHY_PHYS_ADDR, EPHY_MISR1); |
| 394 | |
| 395 | /** |
| 396 | * Set MAC filtering options. We receive all broadcast and mui32ticast |
| 397 | * packets along with those addressed specifically for us. |
| 398 | */ |
| 399 | EMACFrameFilterSet(EMAC0_BASE, (EMAC_FRMFILTER_HASH_AND_PERFECT | |
| 400 | EMAC_FRMFILTER_PASS_MULTICAST)); |
| 401 | |
| 402 | #if LWIP_PTPD |
| 403 | // |
| 404 | // Enable timestamping on all received packets. |
no test coverage detected