tigon3.c

U-boot源码 ARM7启动代码

	if ((Value32 >> 16) == 0x484b) {

		pDevice->NodeAddress[0] = (LM_UINT8) (Value32 >> 8);
		pDevice->NodeAddress[1] = (LM_UINT8) Value32;

		Value32 = MEM_RD_OFFSET (pDevice, T3_MAC_ADDR_LOW_MAILBOX);

		pDevice->NodeAddress[2] = (LM_UINT8) (Value32 >> 24);
		pDevice->NodeAddress[3] = (LM_UINT8) (Value32 >> 16);
		pDevice->NodeAddress[4] = (LM_UINT8) (Value32 >> 8);
		pDevice->NodeAddress[5] = (LM_UINT8) Value32;

		Status = LM_STATUS_SUCCESS;
	} else {
		Status = LM_NvramRead (pDevice, 0x7c, &Value32);
		if (Status == LM_STATUS_SUCCESS) {
			pDevice->NodeAddress[0] = (LM_UINT8) (Value32 >> 16);
			pDevice->NodeAddress[1] = (LM_UINT8) (Value32 >> 24);

			Status = LM_NvramRead (pDevice, 0x80, &Value32);

			pDevice->NodeAddress[2] = (LM_UINT8) Value32;
			pDevice->NodeAddress[3] = (LM_UINT8) (Value32 >> 8);
			pDevice->NodeAddress[4] = (LM_UINT8) (Value32 >> 16);
			pDevice->NodeAddress[5] = (LM_UINT8) (Value32 >> 24);
		}
	}

	/* Assign a default address. */
	if (Status != LM_STATUS_SUCCESS) {
#ifndef EMBEDDED
		printk (KERN_ERR
			"Cannot get MAC addr from NVRAM. Using default.\n");
#endif
		pDevice->NodeAddress[0] = 0x00;
		pDevice->NodeAddress[1] = 0x10;
		pDevice->NodeAddress[2] = 0x18;
		pDevice->NodeAddress[3] = 0x68;
		pDevice->NodeAddress[4] = 0x61;
		pDevice->NodeAddress[5] = 0x76;
	}

	pDevice->PermanentNodeAddress[0] = pDevice->NodeAddress[0];
	pDevice->PermanentNodeAddress[1] = pDevice->NodeAddress[1];
	pDevice->PermanentNodeAddress[2] = pDevice->NodeAddress[2];
	pDevice->PermanentNodeAddress[3] = pDevice->NodeAddress[3];
	pDevice->PermanentNodeAddress[4] = pDevice->NodeAddress[4];
	pDevice->PermanentNodeAddress[5] = pDevice->NodeAddress[5];

	/* Initialize the default values. */
	pDevice->NoTxPseudoHdrChksum = FALSE;
	pDevice->NoRxPseudoHdrChksum = FALSE;
	pDevice->NicSendBd = FALSE;
	pDevice->TxPacketDescCnt = DEFAULT_TX_PACKET_DESC_COUNT;
	pDevice->RxStdDescCnt = DEFAULT_STD_RCV_DESC_COUNT;
	pDevice->RxCoalescingTicks = DEFAULT_RX_COALESCING_TICKS;
	pDevice->TxCoalescingTicks = DEFAULT_TX_COALESCING_TICKS;
	pDevice->RxMaxCoalescedFrames = DEFAULT_RX_MAX_COALESCED_FRAMES;
	pDevice->TxMaxCoalescedFrames = DEFAULT_TX_MAX_COALESCED_FRAMES;
	pDevice->RxCoalescingTicksDuringInt = BAD_DEFAULT_VALUE;
	pDevice->TxCoalescingTicksDuringInt = BAD_DEFAULT_VALUE;
	pDevice->RxMaxCoalescedFramesDuringInt = BAD_DEFAULT_VALUE;
	pDevice->TxMaxCoalescedFramesDuringInt = BAD_DEFAULT_VALUE;
	pDevice->StatsCoalescingTicks = DEFAULT_STATS_COALESCING_TICKS;
	pDevice->EnableMWI = FALSE;
	pDevice->TxMtu = MAX_ETHERNET_PACKET_SIZE_NO_CRC;
	pDevice->RxMtu = MAX_ETHERNET_PACKET_SIZE_NO_CRC;
	pDevice->DisableAutoNeg = FALSE;
	pDevice->PhyIntMode = T3_PHY_INT_MODE_AUTO;
	pDevice->LinkChngMode = T3_LINK_CHNG_MODE_AUTO;
	pDevice->LedMode = LED_MODE_AUTO;
	pDevice->ResetPhyOnInit = TRUE;
	pDevice->DelayPciGrant = TRUE;
	pDevice->UseTaggedStatus = FALSE;
	pDevice->OneDmaAtOnce = BAD_DEFAULT_VALUE;

	pDevice->DmaMbufLowMark = T3_DEF_DMA_MBUF_LOW_WMARK_JUMBO;
	pDevice->RxMacMbufLowMark = T3_DEF_RX_MAC_MBUF_LOW_WMARK_JUMBO;
	pDevice->MbufHighMark = T3_DEF_MBUF_HIGH_WMARK_JUMBO;

	pDevice->RequestedMediaType = LM_REQUESTED_MEDIA_TYPE_AUTO;
	pDevice->TaskOffloadCap = LM_TASK_OFFLOAD_NONE;
	pDevice->FlowControlCap = LM_FLOW_CONTROL_AUTO_PAUSE;
	pDevice->EnableTbi = FALSE;
#if INCLUDE_TBI_SUPPORT
	pDevice->PollTbiLink = BAD_DEFAULT_VALUE;
#endif

	switch (T3_ASIC_REV (pDevice->ChipRevId)) {
	case T3_ASIC_REV_5704:
		pDevice->MbufBase = T3_NIC_MBUF_POOL_ADDR;
		pDevice->MbufSize = T3_NIC_MBUF_POOL_SIZE64;
		break;
	default:
		pDevice->MbufBase = T3_NIC_MBUF_POOL_ADDR;
		pDevice->MbufSize = T3_NIC_MBUF_POOL_SIZE96;
		break;
	}

	pDevice->LinkStatus = LM_STATUS_LINK_DOWN;
	pDevice->QueueRxPackets = TRUE;

	pDevice->EnableWireSpeed = TRUE;

#if T3_JUMBO_RCV_RCB_ENTRY_COUNT
	pDevice->RxJumboDescCnt = DEFAULT_JUMBO_RCV_DESC_COUNT;
#endif				/* T3_JUMBO_RCV_RCB_ENTRY_COUNT */

	/* Make this is a known adapter. */
	pAdapterInfo = LM_GetAdapterInfoBySsid (pDevice->SubsystemVendorId,
						pDevice->SubsystemId);

	pDevice->BondId = REG_RD (pDevice, Grc.MiscCfg) & GRC_MISC_BD_ID_MASK;
	if (pDevice->BondId != GRC_MISC_BD_ID_5700 &&
	    pDevice->BondId != GRC_MISC_BD_ID_5701 &&
	    pDevice->BondId != GRC_MISC_BD_ID_5702FE &&
	    pDevice->BondId != GRC_MISC_BD_ID_5703 &&
	    pDevice->BondId != GRC_MISC_BD_ID_5703S &&
	    pDevice->BondId != GRC_MISC_BD_ID_5704 &&
	    pDevice->BondId != GRC_MISC_BD_ID_5704CIOBE) {
		return LM_STATUS_UNKNOWN_ADAPTER;
	}

	pDevice->SplitModeEnable = SPLIT_MODE_DISABLE;
	if ((pDevice->ChipRevId == T3_CHIP_ID_5704_A0) &&
	    (pDevice->BondId == GRC_MISC_BD_ID_5704CIOBE)) {
		pDevice->SplitModeEnable = SPLIT_MODE_ENABLE;
		pDevice->SplitModeMaxReq = SPLIT_MODE_5704_MAX_REQ;
	}

	/* Get Eeprom info. */
	Value32 = MEM_RD_OFFSET (pDevice, T3_NIC_DATA_SIG_ADDR);
	if (Value32 == T3_NIC_DATA_SIG) {
		EeSigFound = TRUE;
		Value32 = MEM_RD_OFFSET (pDevice, T3_NIC_DATA_NIC_CFG_ADDR);

		/* Determine PHY type. */
		switch (Value32 & T3_NIC_CFG_PHY_TYPE_MASK) {
		case T3_NIC_CFG_PHY_TYPE_COPPER:
			EePhyTypeSerdes = FALSE;
			break;

		case T3_NIC_CFG_PHY_TYPE_FIBER:
			EePhyTypeSerdes = TRUE;
			break;

		default:
			EePhyTypeSerdes = FALSE;
			break;
		}

		/* Determine PHY led mode. */
		if (T3_ASIC_REV (pDevice->ChipRevId) == T3_ASIC_REV_5700 ||
		    T3_ASIC_REV (pDevice->ChipRevId) == T3_ASIC_REV_5701) {
			switch (Value32 & T3_NIC_CFG_LED_MODE_MASK) {
			case T3_NIC_CFG_LED_MODE_TRIPLE_SPEED:
				EePhyLedMode = LED_MODE_THREE_LINK;
				break;

			case T3_NIC_CFG_LED_MODE_LINK_SPEED:
				EePhyLedMode = LED_MODE_LINK10;
				break;

			default:
				EePhyLedMode = LED_MODE_AUTO;
				break;
			}
		} else {
			switch (Value32 & T3_NIC_CFG_LED_MODE_MASK) {
			case T3_NIC_CFG_LED_MODE_OPEN_DRAIN:
				EePhyLedMode = LED_MODE_OPEN_DRAIN;
				break;

			case T3_NIC_CFG_LED_MODE_OUTPUT:
				EePhyLedMode = LED_MODE_OUTPUT;
				break;

			default:
				EePhyLedMode = LED_MODE_AUTO;
				break;
			}
		}
		if (pDevice->ChipRevId == T3_CHIP_ID_5703_A1 ||
		    pDevice->ChipRevId == T3_CHIP_ID_5703_A2) {
			/* Enable EEPROM write protection. */
			if (Value32 & T3_NIC_EEPROM_WP) {
				pDevice->EepromWp = TRUE;
			}
		}

		/* Get the PHY Id. */
		Value32 = MEM_RD_OFFSET (pDevice, T3_NIC_DATA_PHY_ID_ADDR);
		if (Value32) {
			EePhyId = (((Value32 & T3_NIC_PHY_ID1_MASK) >> 16) &
				   PHY_ID1_OUI_MASK) << 10;

			Value32 = Value32 & T3_NIC_PHY_ID2_MASK;

			EePhyId |= ((Value32 & PHY_ID2_OUI_MASK) << 16) |
			    (Value32 & PHY_ID2_MODEL_MASK) | (Value32 &
							      PHY_ID2_REV_MASK);
		} else {
			EePhyId = 0;
		}
	} else {
		EeSigFound = FALSE;
	}

	/* Set the PHY address. */
	pDevice->PhyAddr = PHY_DEVICE_ID;

	/* Disable auto polling. */
	pDevice->MiMode = 0xc0000;
	REG_WR (pDevice, MacCtrl.MiMode, pDevice->MiMode);
	MM_Wait (40);

	/* Get the PHY id. */
	LM_ReadPhy (pDevice, PHY_ID1_REG, &Value32);
	pDevice->PhyId = (Value32 & PHY_ID1_OUI_MASK) << 10;

	LM_ReadPhy (pDevice, PHY_ID2_REG, &Value32);
	pDevice->PhyId |= ((Value32 & PHY_ID2_OUI_MASK) << 16) |
	    (Value32 & PHY_ID2_MODEL_MASK) | (Value32 & PHY_ID2_REV_MASK);

	/* Set the EnableTbi flag to false if we have a copper PHY. */
	switch (pDevice->PhyId & PHY_ID_MASK) {
	case PHY_BCM5400_PHY_ID:
		pDevice->EnableTbi = FALSE;
		break;

	case PHY_BCM5401_PHY_ID:
		pDevice->EnableTbi = FALSE;
		break;

	case PHY_BCM5411_PHY_ID:
		pDevice->EnableTbi = FALSE;
		break;

	case PHY_BCM5701_PHY_ID:
		pDevice->EnableTbi = FALSE;
		break;

	case PHY_BCM5703_PHY_ID:
		pDevice->EnableTbi = FALSE;
		break;

	case PHY_BCM5704_PHY_ID:
		pDevice->EnableTbi = FALSE;
		break;

	case PHY_BCM8002_PHY_ID:
		pDevice->EnableTbi = TRUE;
		break;

	default:

		if (pAdapterInfo) {
			pDevice->PhyId = pAdapterInfo->PhyId;
			pDevice->EnableTbi = pAdapterInfo->Serdes;
		} else if (EeSigFound) {
			pDevice->PhyId = EePhyId;
			pDevice->EnableTbi = EePhyTypeSerdes;
		}
		break;
	}

	/* Bail out if we don't know the copper PHY id. */
	if (UNKNOWN_PHY_ID (pDevice->PhyId) && !pDevice->EnableTbi) {
		return LM_STATUS_FAILURE;
	}

	if (T3_ASIC_REV (pDevice->ChipRevId) == T3_ASIC_REV_5703) {
		if ((pDevice->SavedCacheLineReg & 0xff00) < 0x4000) {
			pDevice->SavedCacheLineReg &= 0xffff00ff;
			pDevice->SavedCacheLineReg |= 0x4000;
		}
	}
	/* Change driver parameters. */
	Status = MM_GetConfig (pDevice);
	if (Status != LM_STATUS_SUCCESS) {
		return Status;
	}
#if INCLUDE_5701_AX_FIX
	if (pDevice->ChipRevId == T3_CHIP_ID_5701_A0 ||
	    pDevice->ChipRevId == T3_CHIP_ID_5701_B0) {
		pDevice->ResetPhyOnInit = TRUE;
	}
#endif

	/* Save the current phy link status. */
	if (!pDevice->EnableTbi) {
		LM_ReadPhy (pDevice, PHY_STATUS_REG, &Value32);
		LM_ReadPhy (pDevice, PHY_STATUS_REG, &Value32);

		/* If we don't have link reset the PHY. */
		if (!(Value32 & PHY_STATUS_LINK_PASS)
		    || pDevice->ResetPhyOnInit) {

			LM_WritePhy (pDevice, PHY_CTRL_REG, PHY_CTRL_PHY_RESET);

			for (j = 0; j < 100; j++) {
				MM_Wait (10);

				LM_ReadPhy (pDevice, PHY_CTRL_REG, &Value32);
				if (Value32 && !(Value32 & PHY_CTRL_PHY_RESET)) {
					MM_Wait (40);
					break;
				}
			}

#if INCLUDE_5701_AX_FIX
			/* 5701_AX_BX bug:  only advertises 10mb speed. */
			if (pDevice->ChipRevId == T3_CHIP_ID_5701_A0 ||
			    pDevice->ChipRevId == T3_CHIP_ID_5701_B0) {

				Value32 = PHY_AN_AD_PROTOCOL_802_3_CSMA_CD |
				    PHY_AN_AD_10BASET_HALF |
				    PHY_AN_AD_10BASET_FULL |
				    PHY_AN_AD_100BASETX_FULL |
				    PHY_AN_AD_100BASETX_HALF;
				Value32 |= GetPhyAdFlowCntrlSettings (pDevice);
				LM_WritePhy (pDevice, PHY_AN_AD_REG, Value32);
				pDevice->advertising = Value32;

				Value32 = BCM540X_AN_AD_1000BASET_HALF |
				    BCM540X_AN_AD_1000BASET_FULL |
				    BCM540X_CONFIG_AS_MASTER |
				    BCM540X_ENABLE_CONFIG_AS_MASTER;
				LM_WritePhy (pDevice,
					     BCM540X_1000BASET_CTRL_REG,
					     Value32);
				pDevice->advertising1000 = Value32;

				LM_WritePhy (pDevice, PHY_CTRL_REG,
					     PHY_CTRL_AUTO_NEG_ENABLE |
					     PHY_CTRL_RESTART_AUTO_NEG);
			}
#endif
			if (T3_ASIC_REV (pDevice->ChipRevId) ==
			    T3_ASIC_REV_5703) {
				LM_WritePhy (pDevice, 0x18, 0x0c00);
				LM_WritePhy (pDevice, 0x17, 0x201f);
				LM_WritePhy (pDevice, 0x15, 0x2aaa);
			}
			if (pDevice->ChipRevId == T3_CHIP_ID_5704_A0) {
				LM_WritePhy (pDevice, 0x1c, 0x8d68);
				LM_WritePhy (pDevice, 0x1c, 0x8d68);
			}
			/* Enable Ethernet@WireSpeed. */
			if (pDevice->EnableWireSpeed) {
				LM_WritePhy (pDevice, 0x18, 0x7007);
				LM_ReadPhy (pDevice, 0x18, &Value32);
				LM_WritePhy (pDevice, 0x18,
					     Value32 | BIT_15 | BIT_4);
			}
		}
	}

	/* Turn off tap power management. */
	if ((pDevice->PhyId & PHY_ID_MASK) == PHY_BCM5401_PHY_ID) {
		LM_WritePhy (pDevice, BCM5401_AUX_CTRL, 0x0c20);
		LM_WritePhy (pDevice, BCM540X_DSP_ADDRESS_REG, 0x0012);
		LM_WritePhy (pDevice, BCM540X_DSP_RW_PORT, 0x1804);
		LM_WritePhy (pDevice, BCM540X_DSP_ADDRESS_REG, 0x0013);
		LM_WritePhy (pDevice, BCM540X_DSP_RW_PORT, 0x1204);
		LM_WritePhy (pDevice, BCM540X_DSP_ADDRESS_REG, 0x8006);
		LM_WritePhy (pDevice, BCM540X_DSP_RW_PORT, 0x0132);
		LM_WritePhy (pDevice, BCM540X_DSP_ADDRESS_REG, 0x8006);
		LM_WritePhy (pDevice, BCM540X_DSP_RW_PORT, 0x0232);
		LM_WritePhy (pDevice, BCM540X_DSP_ADDRESS_REG, 0x201f);
		LM_WritePhy (pDevice, BCM540X_DSP_RW_PORT, 0x0a20);

		MM_Wait (40);
	}
#if INCLUDE_TBI_SUPPORT
	pDevice->IgnoreTbiLinkChange = FALSE;

	if (pDevice->EnableTbi) {
		pDevice->WakeUpModeCap = LM_WAKE_UP_MODE_NONE;
		pDevice->PhyIntMode = T3_PHY_INT_MODE_LINK_READY;
		if ((pDevice->PollTbiLink == BAD_DEFAULT_VALUE) ||
		    pDevice->DisableAutoNeg) {
			pDevice->PollTbiLink = FALSE;
		}
	} else {
		pDevice->PollTbiLink = FALSE;
	}
#endif				/* INCLUDE_TBI_SUPPORT */

	/* UseTaggedStatus is only valid for 5701 and later. */
	if (T3_ASIC_REV (pDevice->ChipRevId) == T3_ASIC_REV_5700) {
		pDevice->UseTaggedStatus = FALSE;

		pDevice->CoalesceMode = 0;
	} else {
		pDevice->CoalesceMode =
		    HOST_COALESCE_CLEAR_TICKS_ON_RX_BD_EVENT |
		    HOST_COALESCE_CLEAR_TICKS_ON_TX_BD_EVENT;
	}

	/* Set the status block size. */
	if (T3_CHIP_REV (pDevice->ChipRevId) != T3_CHIP_REV_5700_AX &&
	    T3_CHIP_REV (pDevice->ChipRevId) != T3_CHIP_REV_5700_BX) {
		pDevice->CoalesceMode |= HOST_COALESCE_32_BYTE_STATUS_MODE;
	}

	/* Check the DURING_INT coalescing ticks parameters. */
	if (pDevice->UseTaggedStatus) {
		if (pDevice->RxCoalescingTicksDuringInt == BAD_DEFAULT_VALUE) {
			pDevice->RxCoalescingTicksDuringInt =
			    DEFAULT_RX_COALESCING_TICKS_DURING_INT;
		}

		if (pDevice->TxCoalescingTicksDuringInt == BAD_DEFAULT_VALUE) {
			pDevice->TxCoalescingTicksDuringInt =
			    DEFAULT_TX_COALESCING_TICKS_DURING_INT;
		}

		if (pDevice->RxMaxCoalescedFramesDuringInt == BAD_DEFAULT_VALUE) {
			pDevice->RxMaxCoalescedFramesDuringInt =
			    DEFAULT_RX_MAX_COALESCED_FRAMES_DURING_INT;
		}