bcm570x.c

U-boot源码 ARM7启动代码

/*
 * Broadcom BCM570x Ethernet Driver for U-Boot.
 * Support 5701, 5702, 5703, and 5704. Single instance driver.
 * Copyright (C) 2002 James F. Dougherty ([e-mail])
 */

#include <common.h>

#if defined(CONFIG_CMD_NET) \
	&& (!defined(CONFIG_NET_MULTI)) && defined(CONFIG_BCM570x)

#ifdef CONFIG_BMW
#include <mpc824x.h>
#endif
#include <net.h>
#include "bcm570x_mm.h"
#include "bcm570x_autoneg.h"
#include <pci.h>
#include <malloc.h>

/*
 * PCI Registers and definitions.
 */
#define PCI_CMD_MASK	0xffff0000	/* mask to save status bits */
#define PCI_ANY_ID (~0)

/*
 * PCI memory base for Ethernet device as well as device Interrupt.
 */
#define BCM570X_MBAR 	0x80100000
#define BCM570X_ILINE   1

#define SECOND_USEC	1000000
#define MAX_PACKET_SIZE 1600
#define MAX_UNITS       4

/* Globals to this module */
int initialized = 0;
unsigned int ioBase = 0;
volatile PLM_DEVICE_BLOCK pDevice = NULL;	/* 570x softc */
volatile PUM_DEVICE_BLOCK pUmDevice = NULL;

/* Used to pass the full-duplex flag, etc. */
int line_speed[MAX_UNITS] = { 0, 0, 0, 0 };
static int full_duplex[MAX_UNITS] = { 1, 1, 1, 1 };
static int rx_flow_control[MAX_UNITS] = { 0, 0, 0, 0 };
static int tx_flow_control[MAX_UNITS] = { 0, 0, 0, 0 };
static int auto_flow_control[MAX_UNITS] = { 0, 0, 0, 0 };
static int tx_checksum[MAX_UNITS] = { 1, 1, 1, 1 };
static int rx_checksum[MAX_UNITS] = { 1, 1, 1, 1 };
static int auto_speed[MAX_UNITS] = { 1, 1, 1, 1 };

#if JUMBO_FRAMES
/* Jumbo MTU for interfaces. */
static int mtu[MAX_UNITS] = { 0, 0, 0, 0 };
#endif

/* Turn on Wake-on lan for a device unit */
static int enable_wol[MAX_UNITS] = { 0, 0, 0, 0 };

#define TX_DESC_CNT DEFAULT_TX_PACKET_DESC_COUNT
static unsigned int tx_pkt_desc_cnt[MAX_UNITS] =
    { TX_DESC_CNT, TX_DESC_CNT, TX_DESC_CNT, TX_DESC_CNT };

#define RX_DESC_CNT DEFAULT_STD_RCV_DESC_COUNT
static unsigned int rx_std_desc_cnt[MAX_UNITS] =
    { RX_DESC_CNT, RX_DESC_CNT, RX_DESC_CNT, RX_DESC_CNT };

static unsigned int rx_adaptive_coalesce[MAX_UNITS] = { 1, 1, 1, 1 };

#if T3_JUMBO_RCV_RCB_ENTRY_COUNT
#define JBO_DESC_CNT DEFAULT_JUMBO_RCV_DESC_COUNT
static unsigned int rx_jumbo_desc_cnt[MAX_UNITS] =
    { JBO_DESC_CNT, JBO_DESC_CNT, JBO_DESC_CNT, JBO_DESC_CNT };
#endif
#define RX_COAL_TK DEFAULT_RX_COALESCING_TICKS
static unsigned int rx_coalesce_ticks[MAX_UNITS] =
    { RX_COAL_TK, RX_COAL_TK, RX_COAL_TK, RX_COAL_TK };

#define RX_COAL_FM DEFAULT_RX_MAX_COALESCED_FRAMES
static unsigned int rx_max_coalesce_frames[MAX_UNITS] =
    { RX_COAL_FM, RX_COAL_FM, RX_COAL_FM, RX_COAL_FM };

#define TX_COAL_TK DEFAULT_TX_COALESCING_TICKS
static unsigned int tx_coalesce_ticks[MAX_UNITS] =
    { TX_COAL_TK, TX_COAL_TK, TX_COAL_TK, TX_COAL_TK };

#define TX_COAL_FM DEFAULT_TX_MAX_COALESCED_FRAMES
static unsigned int tx_max_coalesce_frames[MAX_UNITS] =
    { TX_COAL_FM, TX_COAL_FM, TX_COAL_FM, TX_COAL_FM };

#define ST_COAL_TK DEFAULT_STATS_COALESCING_TICKS
static unsigned int stats_coalesce_ticks[MAX_UNITS] =
    { ST_COAL_TK, ST_COAL_TK, ST_COAL_TK, ST_COAL_TK };

/*
 * Legitimate values for BCM570x device types
 */
typedef enum {
	BCM5700VIGIL = 0,
	BCM5700A6,
	BCM5700T6,
	BCM5700A9,
	BCM5700T9,
	BCM5700,
	BCM5701A5,
	BCM5701T1,
	BCM5701T8,
	BCM5701A7,
	BCM5701A10,
	BCM5701A12,
	BCM5701,
	BCM5702,
	BCM5703,
	BCM5703A31,
	TC996T,
	TC996ST,
	TC996SSX,
	TC996SX,
	TC996BT,
	TC997T,
	TC997SX,
	TC1000T,
	TC940BR01,
	TC942BR01,
	NC6770,
	NC7760,
	NC7770,
	NC7780
} board_t;

/* Chip-Rev names for each device-type */
static struct {
	char *name;
} chip_rev[] = {
	{
	"BCM5700VIGIL"}, {
	"BCM5700A6"}, {
	"BCM5700T6"}, {
	"BCM5700A9"}, {
	"BCM5700T9"}, {
	"BCM5700"}, {
	"BCM5701A5"}, {
	"BCM5701T1"}, {
	"BCM5701T8"}, {
	"BCM5701A7"}, {
	"BCM5701A10"}, {
	"BCM5701A12"}, {
	"BCM5701"}, {
	"BCM5702"}, {
	"BCM5703"}, {
	"BCM5703A31"}, {
	"TC996T"}, {
	"TC996ST"}, {
	"TC996SSX"}, {
	"TC996SX"}, {
	"TC996BT"}, {
	"TC997T"}, {
	"TC997SX"}, {
	"TC1000T"}, {
	"TC940BR01"}, {
	"TC942BR01"}, {
	"NC6770"}, {
	"NC7760"}, {
	"NC7770"}, {
	"NC7780"}, {
	0}
};

/* indexed by board_t, above */
static struct {
	char *name;
} board_info[] = {
	{
	"Broadcom Vigil B5700 1000Base-T"}, {
	"Broadcom BCM5700 1000Base-T"}, {
	"Broadcom BCM5700 1000Base-SX"}, {
	"Broadcom BCM5700 1000Base-SX"}, {
	"Broadcom BCM5700 1000Base-T"}, {
	"Broadcom BCM5700"}, {
	"Broadcom BCM5701 1000Base-T"}, {
	"Broadcom BCM5701 1000Base-T"}, {
	"Broadcom BCM5701 1000Base-T"}, {
	"Broadcom BCM5701 1000Base-SX"}, {
	"Broadcom BCM5701 1000Base-T"}, {
	"Broadcom BCM5701 1000Base-T"}, {
	"Broadcom BCM5701"}, {
	"Broadcom BCM5702 1000Base-T"}, {
	"Broadcom BCM5703 1000Base-T"}, {
	"Broadcom BCM5703 1000Base-SX"}, {
	"3Com 3C996 10/100/1000 Server NIC"}, {
	"3Com 3C996 10/100/1000 Server NIC"}, {
	"3Com 3C996 Gigabit Fiber-SX Server NIC"}, {
	"3Com 3C996 Gigabit Fiber-SX Server NIC"}, {
	"3Com 3C996B Gigabit Server NIC"}, {
	"3Com 3C997 Gigabit Server NIC"}, {
	"3Com 3C997 Gigabit Fiber-SX Server NIC"}, {
	"3Com 3C1000 Gigabit NIC"}, {
	"3Com 3C940 Gigabit LOM (21X21)"}, {
	"3Com 3C942 Gigabit LOM (31X31)"}, {
	"Compaq NC6770 Gigabit Server Adapter"}, {
	"Compaq NC7760 Gigabit Server Adapter"}, {
	"Compaq NC7770 Gigabit Server Adapter"}, {
	"Compaq NC7780 Gigabit Server Adapter"}, {
0},};

/* PCI Devices which use the 570x chipset */
struct pci_device_table {
	unsigned short vendor_id, device_id;	/* Vendor/DeviceID */
	unsigned short subvendor, subdevice;	/* Subsystem ID's or PCI_ANY_ID */
	unsigned int class, class_mask;	/* (class,subclass,prog-if) triplet */
	unsigned long board_id;	/* Data private to the driver */
	int io_size, min_latency;
} bcm570xDevices[] = {
	{
	0x14e4, 0x1644, 0x1014, 0x0277, 0, 0, BCM5700VIGIL, 128, 32}, {
	0x14e4, 0x1644, 0x14e4, 0x1644, 0, 0, BCM5700A6, 128, 32}, {
	0x14e4, 0x1644, 0x14e4, 0x2, 0, 0, BCM5700T6, 128, 32}, {
	0x14e4, 0x1644, 0x14e4, 0x3, 0, 0, BCM5700A9, 128, 32}, {
	0x14e4, 0x1644, 0x14e4, 0x4, 0, 0, BCM5700T9, 128, 32}, {
	0x14e4, 0x1644, 0x1028, 0xd1, 0, 0, BCM5700, 128, 32}, {
	0x14e4, 0x1644, 0x1028, 0x0106, 0, 0, BCM5700, 128, 32}, {
	0x14e4, 0x1644, 0x1028, 0x0109, 0, 0, BCM5700, 128, 32}, {
	0x14e4, 0x1644, 0x1028, 0x010a, 0, 0, BCM5700, 128, 32}, {
	0x14e4, 0x1644, 0x10b7, 0x1000, 0, 0, TC996T, 128, 32}, {
	0x14e4, 0x1644, 0x10b7, 0x1001, 0, 0, TC996ST, 128, 32}, {
	0x14e4, 0x1644, 0x10b7, 0x1002, 0, 0, TC996SSX, 128, 32}, {
	0x14e4, 0x1644, 0x10b7, 0x1003, 0, 0, TC997T, 128, 32}, {
	0x14e4, 0x1644, 0x10b7, 0x1005, 0, 0, TC997SX, 128, 32}, {
	0x14e4, 0x1644, 0x10b7, 0x1008, 0, 0, TC942BR01, 128, 32}, {
	0x14e4, 0x1644, PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5700, 128, 32}, {
	0x14e4, 0x1645, 0x14e4, 1, 0, 0, BCM5701A5, 128, 32}, {
	0x14e4, 0x1645, 0x14e4, 5, 0, 0, BCM5701T1, 128, 32}, {
	0x14e4, 0x1645, 0x14e4, 6, 0, 0, BCM5701T8, 128, 32}, {
	0x14e4, 0x1645, 0x14e4, 7, 0, 0, BCM5701A7, 128, 32}, {
	0x14e4, 0x1645, 0x14e4, 8, 0, 0, BCM5701A10, 128, 32}, {
	0x14e4, 0x1645, 0x14e4, 0x8008, 0, 0, BCM5701A12, 128, 32}, {
	0x14e4, 0x1645, 0x0e11, 0xc1, 0, 0, NC6770, 128, 32}, {
	0x14e4, 0x1645, 0x0e11, 0x7c, 0, 0, NC7770, 128, 32}, {
	0x14e4, 0x1645, 0x0e11, 0x85, 0, 0, NC7780, 128, 32}, {
	0x14e4, 0x1645, 0x1028, 0x0121, 0, 0, BCM5701, 128, 32}, {
	0x14e4, 0x1645, 0x10b7, 0x1004, 0, 0, TC996SX, 128, 32}, {
	0x14e4, 0x1645, 0x10b7, 0x1006, 0, 0, TC996BT, 128, 32}, {
	0x14e4, 0x1645, 0x10b7, 0x1007, 0, 0, TC1000T, 128, 32}, {
	0x14e4, 0x1645, 0x10b7, 0x1008, 0, 0, TC940BR01, 128, 32}, {
	0x14e4, 0x1645, PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5701, 128, 32}, {
	0x14e4, 0x1646, 0x14e4, 0x8009, 0, 0, BCM5702, 128, 32}, {
	0x14e4, 0x1646, 0x0e11, 0xbb, 0, 0, NC7760, 128, 32}, {
	0x14e4, 0x1646, PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5702, 128, 32}, {
	0x14e4, 0x16a6, 0x14e4, 0x8009, 0, 0, BCM5702, 128, 32}, {
	0x14e4, 0x16a6, 0x0e11, 0xbb, 0, 0, NC7760, 128, 32}, {
	0x14e4, 0x16a6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5702, 128, 32}, {
	0x14e4, 0x1647, 0x14e4, 0x0009, 0, 0, BCM5703, 128, 32}, {
	0x14e4, 0x1647, 0x14e4, 0x000a, 0, 0, BCM5703A31, 128, 32}, {
	0x14e4, 0x1647, 0x14e4, 0x000b, 0, 0, BCM5703, 128, 32}, {
	0x14e4, 0x1647, 0x14e4, 0x800a, 0, 0, BCM5703, 128, 32}, {
	0x14e4, 0x1647, 0x0e11, 0x9a, 0, 0, NC7770, 128, 32}, {
	0x14e4, 0x1647, 0x0e11, 0x99, 0, 0, NC7780, 128, 32}, {
	0x14e4, 0x1647, PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5703, 128, 32}, {
	0x14e4, 0x16a7, 0x14e4, 0x0009, 0, 0, BCM5703, 128, 32}, {
	0x14e4, 0x16a7, 0x14e4, 0x000a, 0, 0, BCM5703A31, 128, 32}, {
	0x14e4, 0x16a7, 0x14e4, 0x000b, 0, 0, BCM5703, 128, 32}, {
	0x14e4, 0x16a7, 0x14e4, 0x800a, 0, 0, BCM5703, 128, 32}, {
	0x14e4, 0x16a7, 0x0e11, 0x9a, 0, 0, NC7770, 128, 32}, {
	0x14e4, 0x16a7, 0x0e11, 0x99, 0, 0, NC7780, 128, 32}, {
	0x14e4, 0x16a7, PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5703, 128, 32}
};

#define n570xDevices   (sizeof(bcm570xDevices)/sizeof(bcm570xDevices[0]))

/*
 * Allocate a packet buffer from the bcm570x packet pool.
 */
void *bcm570xPktAlloc (int u, int pksize)
{
	return malloc (pksize);
}

/*
 * Free a packet previously allocated from the bcm570x packet
 * buffer pool.
 */
void bcm570xPktFree (int u, void *p)
{
	free (p);
}

int bcm570xReplenishRxBuffers (PUM_DEVICE_BLOCK pUmDevice)
{
	PLM_PACKET pPacket;
	PUM_PACKET pUmPacket;
	void *skb;
	int queue_rx = 0;
	int ret = 0;

	while ((pUmPacket = (PUM_PACKET)
		QQ_PopHead (&pUmDevice->rx_out_of_buf_q.Container)) != 0) {

		pPacket = (PLM_PACKET) pUmPacket;

		/* reuse an old skb */
		if (pUmPacket->skbuff) {
			QQ_PushTail (&pDevice->RxPacketFreeQ.Container,
				     pPacket);
			queue_rx = 1;
			continue;
		}
		if ((skb = bcm570xPktAlloc (pUmDevice->index,
					    pPacket->u.Rx.RxBufferSize + 2)) ==
		    0) {
			QQ_PushHead (&pUmDevice->rx_out_of_buf_q.Container,
				     pPacket);
			printf ("NOTICE: Out of RX memory.\n");
			ret = 1;
			break;
		}

		pUmPacket->skbuff = skb;
		QQ_PushTail (&pDevice->RxPacketFreeQ.Container, pPacket);
		queue_rx = 1;
	}

	if (queue_rx) {
		LM_QueueRxPackets (pDevice);
	}

	return ret;
}

/*
 * Probe, Map, and Init 570x device.
 */
int eth_init (bd_t * bis)
{
	int i, rv, devFound = FALSE;
	pci_dev_t devbusfn;
	unsigned short status;

	/* Find PCI device, if it exists, configure ...  */
	for (i = 0; i < n570xDevices; i++) {
		devbusfn = pci_find_device (bcm570xDevices[i].vendor_id,
					    bcm570xDevices[i].device_id, 0);
		if (devbusfn == -1) {
			continue;	/* No device of that vendor/device ID */
		} else {

			/* Set ILINE */
			pci_write_config_byte (devbusfn,
					       PCI_INTERRUPT_LINE,
					       BCM570X_ILINE);

			/*
			 * 0x10 - 0x14 define one 64-bit MBAR.
			 * 0x14 is the higher-order address bits of the BAR.
			 */
			pci_write_config_dword (devbusfn,
						PCI_BASE_ADDRESS_1, 0);

			ioBase = BCM570X_MBAR;

			pci_write_config_dword (devbusfn,
						PCI_BASE_ADDRESS_0, ioBase);

			/*
			 * Enable PCI memory, IO, and Master -- don't
			 * reset any status bits in doing so.
			 */
			pci_read_config_word (devbusfn, PCI_COMMAND, &status);

			status |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER;

			pci_write_config_word (devbusfn, PCI_COMMAND, status);

			printf
			    ("\n%s: bus %d, device %d, function %d: MBAR=0x%x\n",
			     board_info[bcm570xDevices[i].board_id].name,
			     PCI_BUS (devbusfn), PCI_DEV (devbusfn),
			     PCI_FUNC (devbusfn), ioBase);

			/* Allocate once, but always clear on init */
			if (!pDevice) {
				pDevice = malloc (sizeof (UM_DEVICE_BLOCK));
				pUmDevice = (PUM_DEVICE_BLOCK) pDevice;
				memset (pDevice, 0x0, sizeof (UM_DEVICE_BLOCK));
			}

			/* Configure pci dev structure */
			pUmDevice->pdev = devbusfn;
			pUmDevice->index = 0;
			pUmDevice->tx_pkt = 0;
			pUmDevice->rx_pkt = 0;
			devFound = TRUE;
			break;
		}
	}

	if (!devFound) {
		printf
		    ("eth_init: FAILURE: no BCM570x Ethernet devices found.\n");
		return -1;
	}

	/* Setup defaults for chip */
	pDevice->TaskToOffload = LM_TASK_OFFLOAD_NONE;

	if (pDevice->ChipRevId == T3_CHIP_ID_5700_B0) {
		pDevice->TaskToOffload = LM_TASK_OFFLOAD_NONE;
	} else {

		if (rx_checksum[i]) {
			pDevice->TaskToOffload |=
			    LM_TASK_OFFLOAD_RX_TCP_CHECKSUM |
			    LM_TASK_OFFLOAD_RX_UDP_CHECKSUM;
		}

		if (tx_checksum[i]) {
			pDevice->TaskToOffload |=
			    LM_TASK_OFFLOAD_TX_TCP_CHECKSUM |
			    LM_TASK_OFFLOAD_TX_UDP_CHECKSUM;
			pDevice->NoTxPseudoHdrChksum = TRUE;
		}
	}

	/* Set Device PCI Memory base address */
	pDevice->pMappedMemBase = (PLM_UINT8) ioBase;

	/* Pull down adapter info */
	if ((rv = LM_GetAdapterInfo (pDevice)) != LM_STATUS_SUCCESS) {
		printf ("bcm570xEnd: LM_GetAdapterInfo failed: rv=%d!\n", rv);
		return -2;
	}

	/* Lock not needed */
	pUmDevice->do_global_lock = 0;

	if (T3_ASIC_REV (pUmDevice->lm_dev.ChipRevId) == T3_ASIC_REV_5700) {
		/* The 5700 chip works best without interleaved register */
		/* accesses on certain machines. */
		pUmDevice->do_global_lock = 1;
	}

	/* Setup timer delays */
	if (T3_ASIC_REV (pDevice->ChipRevId) == T3_ASIC_REV_5701) {
		pDevice->UseTaggedStatus = TRUE;
		pUmDevice->timer_interval = CFG_HZ;
	} else {
		pUmDevice->timer_interval = CFG_HZ / 50;
	}

	/* Grab name .... */
	pUmDevice->name =
	    (char *)malloc (strlen (board_info[bcm570xDevices[i].board_id].name)
			    + 1);
	strcpy (pUmDevice->name, board_info[bcm570xDevices[i].board_id].name);

	memcpy (pDevice->NodeAddress, bis->bi_enetaddr, 6);
	LM_SetMacAddress (pDevice, bis->bi_enetaddr);
	/* Init queues  .. */
	QQ_InitQueue (&pUmDevice->rx_out_of_buf_q.Container,
		      MAX_RX_PACKET_DESC_COUNT);
	pUmDevice->rx_last_cnt = pUmDevice->tx_last_cnt = 0;

	/* delay for 4 seconds */
	pUmDevice->delayed_link_ind = (4 * CFG_HZ) / pUmDevice->timer_interval;

	pUmDevice->adaptive_expiry = CFG_HZ / pUmDevice->timer_interval;

	/* Sometimes we get spurious ints. after reset when link is down. */
	/* This field tells the isr to service the int. even if there is */
	/* no status block update. */
	pUmDevice->adapter_just_inited =
	    (3 * CFG_HZ) / pUmDevice->timer_interval;

	/* Initialize 570x */
	if (LM_InitializeAdapter (pDevice) != LM_STATUS_SUCCESS) {
		printf ("ERROR: Adapter initialization failed.\n");
		return ERROR;
	}

	/* Enable chip ISR */
	LM_EnableInterrupt (pDevice);

	/* Clear MC table */
	LM_MulticastClear (pDevice);

	/* Enable Multicast */
	LM_SetReceiveMask (pDevice,
			   pDevice->ReceiveMask | LM_ACCEPT_ALL_MULTICAST);

	pUmDevice->opened = 1;
	pUmDevice->tx_full = 0;
	pUmDevice->tx_pkt = 0;
	pUmDevice->rx_pkt = 0;
	printf ("eth%d: %s @0x%lx,",
		pDevice->index, pUmDevice->name, (unsigned long)ioBase);
	printf ("node addr ");
	for (i = 0; i < 6; i++) {
		printf ("%2.2x", pDevice->NodeAddress[i]);
	}
	printf ("\n");

	printf ("eth%d: ", pDevice->index);
	printf ("%s with ", chip_rev[bcm570xDevices[i].board_id].name);

	if ((pDevice->PhyId & PHY_ID_MASK) == PHY_BCM5400_PHY_ID)
		printf ("Broadcom BCM5400 Copper ");
	else if ((pDevice->PhyId & PHY_ID_MASK) == PHY_BCM5401_PHY_ID)
		printf ("Broadcom BCM5401 Copper ");
	else if ((pDevice->PhyId & PHY_ID_MASK) == PHY_BCM5411_PHY_ID)
		printf ("Broadcom BCM5411 Copper ");
	else if ((pDevice->PhyId & PHY_ID_MASK) == PHY_BCM5701_PHY_ID)
		printf ("Broadcom BCM5701 Integrated Copper ");
	else if ((pDevice->PhyId & PHY_ID_MASK) == PHY_BCM5703_PHY_ID)
		printf ("Broadcom BCM5703 Integrated Copper ");
	else if ((pDevice->PhyId & PHY_ID_MASK) == PHY_BCM8002_PHY_ID)
		printf ("Broadcom BCM8002 SerDes ");
	else if (pDevice->EnableTbi)
		printf ("Agilent HDMP-1636 SerDes ");
	else
		printf ("Unknown ");
	printf ("transceiver found\n");

	printf ("eth%d: %s, MTU: %d,",
		pDevice->index, pDevice->BusSpeedStr, 1500);

	if ((pDevice->ChipRevId != T3_CHIP_ID_5700_B0) && rx_checksum[i])
		printf ("Rx Checksum ON\n");
	else
		printf ("Rx Checksum OFF\n");
	initialized++;

	return 0;
}

/* Ethernet Interrupt service routine */