Add support for the second Ethernet interface for the 'PPChameleon' board.

2 files changed, 494 insertions, 353 deletions

diff --git a/cpu/ppc4xx/405gp_enet.c b/cpu/ppc4xx/405gp_enet.c
index 65036d1..da45558 100644
--- a/cpu/ppc4xx/405gp_enet.c
+++ b/cpu/ppc4xx/405gp_enet.c
@@ -86,17 +86,17 @@
 #if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
   ( defined(CONFIG_440)   && !defined(CONFIG_NET_MULTI))
 
+#if !defined(CONFIG_NET_MULTI) || !defined(CONFIG_405EP)
+/* 405GP, 440 with !CONFIG_NET_MULTI. For 440 only EMAC0 is supported */
+#define EMAC_NUM_DEV        1
+#else
+/* 440EP && CONFIG_NET_MULTI */
+#define EMAC_NUM_DEV        2
+#endif
+
 #define EMAC_RESET_TIMEOUT 1000	/* 1000 ms reset timeout */
 #define PHY_AUTONEGOTIATE_TIMEOUT 4000	/* 4000 ms autonegotiate timeout */
 
-#define NUM_TX_BUFF 1
-/* AS.HARNOIS
- * Use PKTBUFSRX (include/net.h) instead of setting NUM_RX_BUFF again
- * These both variables are used to define the same thing!
- * #define NUM_RX_BUFF 4
- */
-#define NUM_RX_BUFF PKTBUFSRX
-
 /* Ethernet Transmit and Receive Buffers */
 /* AS.HARNOIS
  * In the same way ENET_MAX_MTU and ENET_MAX_MTU_ALIGNED are set from
@@ -105,11 +105,9 @@
 #define ENET_MAX_MTU           PKTSIZE
 #define ENET_MAX_MTU_ALIGNED   PKTSIZE_ALIGN
 
-static char *txbuf_ptr;
-
 /* define the number of channels implemented */
-#define EMAC_RXCHL      1
-#define EMAC_TXCHL      1
+#define EMAC_RXCHL      EMAC_NUM_DEV
+#define EMAC_TXCHL      EMAC_NUM_DEV
 
 /*-----------------------------------------------------------------------------+
  * Defines for MAL/EMAC interrupt conditions as reported in the UIC (Universal
@@ -118,92 +116,66 @@ static char *txbuf_ptr;
 #define MAL_UIC_ERR ( UIC_MAL_SERR | UIC_MAL_TXDE  | UIC_MAL_RXDE)
 #define MAL_UIC_DEF  (UIC_MAL_RXEOB | MAL_UIC_ERR)
 #define EMAC_UIC_DEF UIC_ENET
+#define EMAC_UIC_DEF1 UIC_ENET1
+#define SEL_UIC_DEF(p) (p ? UIC_ENET1 : UIC_ENET )
+
 
 /*-----------------------------------------------------------------------------+
  * Global variables. TX and RX descriptors and buffers.
  *-----------------------------------------------------------------------------*/
-static volatile mal_desc_t *tx;
-static volatile mal_desc_t *rx;
-static mal_desc_t *alloc_tx_buf = NULL;
-static mal_desc_t *alloc_rx_buf = NULL;
-
 /* IER globals */
-static unsigned long emac_ier;
-static unsigned long mal_ier;
-
-
-/* Statistic Areas */
-#define MAX_ERR_LOG 10
-struct emac_stats {
-	int data_len_err;
-	int rx_frames;
-	int rx;
-	int rx_prot_err;
-};
-
-static struct stats {			/* Statistic Block */
-	struct emac_stats emac;
-	int int_err;
-	short tx_err_log[MAX_ERR_LOG];
-	short rx_err_log[MAX_ERR_LOG];
-} stats;
-
-static int first_init = 0;
-
-static int tx_err_index = 0;	/* Transmit Error Index for tx_err_log */
-static int rx_err_index = 0;	/* Receive Error Index for rx_err_log */
-
-static int rx_slot = 0;			/* MAL Receive Slot */
-static int rx_i_index = 0;		/* Receive Interrupt Queue Index */
-static int rx_u_index = 0;		/* Receive User Queue Index */
-static int rx_ready[NUM_RX_BUFF];	/* Receive Ready Queue */
-
-static int tx_slot = 0;			/* MAL Transmit Slot */
-static int tx_i_index = 0;		/* Transmit Interrupt Queue Index */
-static int tx_u_index = 0;		/* Transmit User Queue Index */
-static int tx_run[NUM_TX_BUFF];	/* Transmit Running Queue */
-
-#undef INFO_405_ENET
-#ifdef INFO_405_ENET
-static int packetSent = 0;
-static int packetReceived = 0;
-static int packetHandled = 0;
-#endif
-
-static char emac_hwd_addr[ENET_ADDR_LENGTH];
-
-static bd_t *bis_save = NULL;	/* for eth_init upon mal error */
+static uint32_t mal_ier;
 
-static int is_receiving = 0;	/* sync with eth interrupt */
-static int print_speed = 1;	/* print speed message upon start */
+#if !defined(CONFIG_NET_MULTI)
+struct eth_device *emac0_dev;
+#endif
 
 /*-----------------------------------------------------------------------------+
  * Prototypes and externals.
  *-----------------------------------------------------------------------------*/
-static void enet_rcv (unsigned long malisr);
-static int  enetInt(void);
-static void mal_err (unsigned long isr, unsigned long uic, unsigned long mal_def,
-	      unsigned long mal_errr);
-static void emac_err (unsigned long isr);
+static void enet_rcv (struct eth_device *dev, unsigned long malisr);
+
+int enetInt (struct eth_device *dev);
+static void mal_err (struct eth_device *dev, unsigned long isr,
+		     unsigned long uic, unsigned long maldef,
+		     unsigned long mal_errr);
+static void emac_err (struct eth_device *dev, unsigned long isr);
 
+/*-----------------------------------------------------------------------------+
+| ppc_405x_eth_halt
+| Disable MAL channel, and EMACn
+|
+|
++-----------------------------------------------------------------------------*/
 static void ppc_4xx_eth_halt (struct eth_device *dev)
 {
-	mtdcr (malier, 0x00000000);	/* disable mal interrupts */
-	out32 (EMAC_IER, 0x00000000);	/* disable emac interrupts */
+	EMAC_405_HW_PST hw_p = dev->priv;
+	uint32_t failsafe = 10000;
 
-	/* 1st reset MAL */
-	mtdcr (malmcr, MAL_CR_MMSR);
+	mtdcr (malier, 0x00000000); /* disable mal interrupts */
+	out32 (EMAC_IER + hw_p->hw_addr, 0x00000000);	/* disable emac interrupts */
+
+	/* 1st reset MAL channel */
+	/* Note: writing a 0 to a channel has no effect */
+	mtdcr (maltxcarr, (MAL_CR_MMSR >> (hw_p->devnum * 2)));
+	mtdcr (malrxcarr, (MAL_CR_MMSR >> hw_p->devnum));
 
 	/* wait for reset */
-	while (mfdcr (malmcr) & MAL_CR_MMSR) {
-	};
+	while (mfdcr (malrxcasr) & (MAL_CR_MMSR >> hw_p->devnum)) {
+		udelay (1000);	/* Delay 1 MS so as not to hammer the register */
+		failsafe--;
+		if (failsafe == 0)
+			break;
+
+	}
 
 	/* EMAC RESET */
-	out32 (EMAC_M0, EMAC_M0_SRST);
+	out32 (EMAC_M0 + hw_p->hw_addr, EMAC_M0_SRST);
 
-	print_speed = 1;		/* print speed message again next time */
-}
+	hw_p->print_speed = 1;	/* print speed message again next time */
 
+	return;
+}
 
 static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
 {
@@ -212,63 +184,108 @@ static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
 	unsigned long msr;
 	unsigned long speed;
 	unsigned long duplex;
+	unsigned long failsafe;
 	unsigned mode_reg;
+	unsigned short devnum;
 	unsigned short reg_short;
 
+	EMAC_405_HW_PST hw_p = dev->priv;
+	/* before doing anything, figure out if we have a MAC address */
+	/* if not, bail */
+	if (memcmp (dev->enetaddr, "\0\0\0\0\0\0", 6) == 0)
+		return -1;
+
 	msr = mfmsr ();
 	mtmsr (msr & ~(MSR_EE));	/* disable interrupts */
 
+	devnum = hw_p->devnum;
+
 #ifdef INFO_405_ENET
 	/* AS.HARNOIS
 	 * We should have :
-	 * packetHandled <=  packetReceived <= packetHandled+PKTBUFSRX
-	 * In the most cases packetHandled = packetReceived, but it
+	 * hw_p->stats.pkts_handled <=  hw_p->stats.pkts_rx <= hw_p->stats.pkts_handled+PKTBUFSRX
+	 * In the most cases hw_p->stats.pkts_handled = hw_p->stats.pkts_rx, but it
 	 * is possible that new packets (without relationship with
 	 * current transfer) have got the time to arrived before
 	 * netloop calls eth_halt
 	 */
-	printf ("About preceeding transfer:\n"
+	printf ("About preceeding transfer (eth%d):\n"
 		"- Sent packet number %d\n"
 		"- Received packet number %d\n"
 		"- Handled packet number %d\n",
-		packetSent, packetReceived, packetHandled);
-	packetSent = 0;
-	packetReceived = 0;
-	packetHandled = 0;
+		hw_p->devnum,
+		hw_p->stats.pkts_tx,
+		hw_p->stats.pkts_rx, hw_p->stats.pkts_handled);
+
+	hw_p->stats.pkts_tx = 0;
+	hw_p->stats.pkts_rx = 0;
+	hw_p->stats.pkts_handled = 0;
 #endif
 
 	/* MAL RESET */
-	mtdcr (malmcr, MAL_CR_MMSR);
+	 mtdcr (malmcr, MAL_CR_MMSR);
+	 /* wait for reset */
+	 while (mfdcr (malmcr) & MAL_CR_MMSR) {
+	 };
+#if defined(CONFIG_440)
+	 /* set RMII mode */
+	 out32 (ZMII_FER, ZMII_RMII | ZMII_MDI0);
+#endif /* CONFIG_440 */
+
+	/* MAL Channel RESET */
+	/* 1st reset MAL channel */
+	/* Note: writing a 0 to a channel has no effect */
+	mtdcr (maltxcarr, (MAL_TXRX_CASR >> (hw_p->devnum * 2)));
+	mtdcr (malrxcarr, (MAL_TXRX_CASR >> hw_p->devnum));
+
+	/* wait for reset */
+	/* TBS:  should have udelay and failsafe here */
+	failsafe = 10000;
 	/* wait for reset */
-	while (mfdcr (malmcr) & MAL_CR_MMSR) {
-	};
+	while (mfdcr (malrxcasr) & (MAL_CR_MMSR >> hw_p->devnum)) {
+		udelay (1000);	/* Delay 1 MS so as not to hammer the register */
+		failsafe--;
+		if (failsafe == 0)
+			break;
 
-	tx_err_index = 0;		/* Transmit Error Index for tx_err_log */
-	rx_err_index = 0;		/* Receive Error Index for rx_err_log */
+	}
 
-	rx_slot = 0;			/* MAL Receive Slot */
-	rx_i_index = 0;			/* Receive Interrupt Queue Index */
-	rx_u_index = 0;			/* Receive User Queue Index */
+	hw_p->tx_err_index = 0;	/* Transmit Error Index for tx_err_log */
+	hw_p->rx_err_index = 0;	/* Receive Error Index for rx_err_log */
 
-	tx_slot = 0;			/* MAL Transmit Slot */
-	tx_i_index = 0;			/* Transmit Interrupt Queue Index */
-	tx_u_index = 0;			/* Transmit User Queue Index */
+	hw_p->rx_slot = 0;	/* MAL Receive Slot */
+	hw_p->rx_i_index = 0;	/* Receive Interrupt Queue Index */
+	hw_p->rx_u_index = 0;	/* Receive User Queue Index */
 
-#if defined(CONFIG_440)
-	/* set RMII mode */
-	out32 (ZMII_FER, ZMII_RMII | ZMII_MDI0);
-#endif /* CONFIG_440 */
+	hw_p->tx_slot = 0;	/* MAL Transmit Slot */
+	hw_p->tx_i_index = 0;	/* Transmit Interrupt Queue Index */
+	hw_p->tx_u_index = 0;	/* Transmit User Queue Index */
 
-	/* EMAC RESET */
-	out32 (EMAC_M0, EMAC_M0_SRST);
+	__asm__ volatile ("eieio");
 
+	/* reset emac so we have access to the phy */
+
+	out32 (EMAC_M0 + hw_p->hw_addr, EMAC_M0_SRST);
+	__asm__ volatile ("eieio");
+
+	failsafe = 1000;
+	while ((in32 (EMAC_M0 + hw_p->hw_addr) & (EMAC_M0_SRST)) && failsafe) {
+		udelay (1000);
+		failsafe--;
+	}
+
+#if defined(CONFIG_NET_MULTI)
+	reg = hw_p->devnum ? CONFIG_PHY1_ADDR : CONFIG_PHY_ADDR;
+#else
+	reg = CONFIG_PHY_ADDR;
+#endif
 	/* wait for PHY to complete auto negotiation */
 	reg_short = 0;
 #ifndef CONFIG_CS8952_PHY
-	miiphy_read (CONFIG_PHY_ADDR, PHY_BMSR, &reg_short);
+	miiphy_read (reg, PHY_BMSR, &reg_short);
 
 	/*
-	 * Wait if PHY is able of autonegotiation and autonegotiation is not complete
+	 * Wait if PHY is capable of autonegotiation and autonegotiation is not complete
 	 */
 	if ((reg_short & PHY_BMSR_AUTN_ABLE)
 	    && !(reg_short & PHY_BMSR_AUTN_COMP)) {
@@ -283,36 +300,39 @@ static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
 				break;
 			}
 
-			if ((i++ % 1000) == 0)
+			if ((i++ % 1000) == 0) {
 				putc ('.');
+			}
 			udelay (1000);	/* 1 ms */
-			miiphy_read (CONFIG_PHY_ADDR, PHY_BMSR, &reg_short);
+			miiphy_read (reg, PHY_BMSR, &reg_short);
 		}
 		puts (" done\n");
 		udelay (500000);	/* another 500 ms (results in faster booting) */
 	}
 #endif
-	speed = miiphy_speed (CONFIG_PHY_ADDR);
-	duplex = miiphy_duplex (CONFIG_PHY_ADDR);
-	if (print_speed) {
-		print_speed = 0;
+	speed = miiphy_speed (reg);
+	duplex = miiphy_duplex (reg);
+
+	if (hw_p->print_speed) {
+		hw_p->print_speed = 0;
 		printf ("ENET Speed is %d Mbps - %s duplex connection\n",
 			(int) speed, (duplex == HALF) ? "HALF" : "FULL");
 	}
 
-	/* set the Mal configuration reg */
 #if defined(CONFIG_440)
 	/* Errata 1.12: MAL_1 -- Disable MAL bursting */
-	if( get_pvr() == PVR_440GP_RB )
-	    mtdcr (malmcr, MAL_CR_OPBBL | MAL_CR_LEA | MAL_CR_PLBLT_DEFAULT);
+	if( get_pvr() == PVR_440GP_RB)
+		mtdcr (malmcr, MAL_CR_OPBBL | MAL_CR_LEA | MAL_CR_PLBLT_DEFAULT);
 	else
 #else
 	mtdcr (malmcr, MAL_CR_PLBB | MAL_CR_OPBBL | MAL_CR_LEA | MAL_CR_PLBLT_DEFAULT);
 #endif
 
 	/* Free "old" buffers */
-	if (alloc_tx_buf) free(alloc_tx_buf);
-	if (alloc_rx_buf) free(alloc_rx_buf);
+	if (hw_p->alloc_tx_buf)
+		free (hw_p->alloc_tx_buf);
+	if (hw_p->alloc_rx_buf)
+		free (hw_p->alloc_rx_buf);
 
 	/*
 	 * Malloc MAL buffer desciptors, make sure they are
@@ -320,93 +340,108 @@ static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
 	 * (401/403/IOP480 = 16, 405 = 32)
 	 * and doesn't cross cache block boundaries.
 	 */
-	alloc_tx_buf = (mal_desc_t *)malloc((sizeof(mal_desc_t) * NUM_TX_BUFF) +
-					    ((2 * CFG_CACHELINE_SIZE) - 2));
-	if (((int)alloc_tx_buf & CACHELINE_MASK) != 0) {
-		tx = (mal_desc_t *)((int)alloc_tx_buf + CFG_CACHELINE_SIZE -
-				    ((int)alloc_tx_buf & CACHELINE_MASK));
+	hw_p->alloc_tx_buf =
+		(mal_desc_t *) malloc ((sizeof (mal_desc_t) * NUM_TX_BUFF) +
+				       ((2 * CFG_CACHELINE_SIZE) - 2));
+	if (((int) hw_p->alloc_tx_buf & CACHELINE_MASK) != 0) {
+		hw_p->tx =
+			(mal_desc_t *) ((int) hw_p->alloc_tx_buf +
+					CFG_CACHELINE_SIZE -
+					((int) hw_p->
+					 alloc_tx_buf & CACHELINE_MASK));
 	} else {
-		tx = alloc_tx_buf;
+		hw_p->tx = hw_p->alloc_tx_buf;
 	}
 
-	alloc_rx_buf = (mal_desc_t *)malloc((sizeof(mal_desc_t) * NUM_RX_BUFF) +
-					    ((2 * CFG_CACHELINE_SIZE) - 2));
-	if (((int)alloc_rx_buf & CACHELINE_MASK) != 0) {
-		rx = (mal_desc_t *)((int)alloc_rx_buf + CFG_CACHELINE_SIZE -
-				    ((int)alloc_rx_buf & CACHELINE_MASK));
+	hw_p->alloc_rx_buf =
+		(mal_desc_t *) malloc ((sizeof (mal_desc_t) * NUM_RX_BUFF) +
+				       ((2 * CFG_CACHELINE_SIZE) - 2));
+	if (((int) hw_p->alloc_rx_buf & CACHELINE_MASK) != 0) {
+		hw_p->rx =
+			(mal_desc_t *) ((int) hw_p->alloc_rx_buf +
+					CFG_CACHELINE_SIZE -
+					((int) hw_p->
+					 alloc_rx_buf & CACHELINE_MASK));
 	} else {
-		rx = alloc_rx_buf;
+		hw_p->rx = hw_p->alloc_rx_buf;
 	}
 
 	for (i = 0; i < NUM_TX_BUFF; i++) {
-		tx[i].ctrl = 0;
-		tx[i].data_len = 0;
-		if (first_init == 0)
-			txbuf_ptr = (char *) malloc (ENET_MAX_MTU_ALIGNED);
-		tx[i].data_ptr = txbuf_ptr;
+		hw_p->tx[i].ctrl = 0;
+		hw_p->tx[i].data_len = 0;
+		if (hw_p->first_init == 0)
+			hw_p->txbuf_ptr =
+				(char *) malloc (ENET_MAX_MTU_ALIGNED);
+		hw_p->tx[i].data_ptr = hw_p->txbuf_ptr;
 		if ((NUM_TX_BUFF - 1) == i)
-			tx[i].ctrl |= MAL_TX_CTRL_WRAP;
-		tx_run[i] = -1;
+			hw_p->tx[i].ctrl |= MAL_TX_CTRL_WRAP;
+		hw_p->tx_run[i] = -1;
 #if 0
-		printf ("TX_BUFF %d @ 0x%08lx\n", i, (ulong) tx[i].data_ptr);
+		printf ("TX_BUFF %d @ 0x%08lx\n", i,
+			(ulong) hw_p->tx[i].data_ptr);
 #endif
 	}
 
 	for (i = 0; i < NUM_RX_BUFF; i++) {
-		rx[i].ctrl = 0;
-		rx[i].data_len = 0;
+		hw_p->rx[i].ctrl = 0;
+		hw_p->rx[i].data_len = 0;
 		/*       rx[i].data_ptr = (char *) &rx_buff[i]; */
-		rx[i].data_ptr = (char *) NetRxPackets[i];
+		hw_p->rx[i].data_ptr = (char *) NetRxPackets[i];
 		if ((NUM_RX_BUFF - 1) == i)
-			rx[i].ctrl |= MAL_RX_CTRL_WRAP;
-		rx[i].ctrl |= MAL_RX_CTRL_EMPTY | MAL_RX_CTRL_INTR;
-		rx_ready[i] = -1;
+			hw_p->rx[i].ctrl |= MAL_RX_CTRL_WRAP;
+		hw_p->rx[i].ctrl |= MAL_RX_CTRL_EMPTY | MAL_RX_CTRL_INTR;
+		hw_p->rx_ready[i] = -1;
 #if 0
 		printf ("RX_BUFF %d @ 0x%08lx\n", i, (ulong) rx[i].data_ptr);
 #endif
 	}
 
-	memcpy (emac_hwd_addr, bis->bi_enetaddr, ENET_ADDR_LENGTH);
-
 	reg = 0x00000000;
-
-	reg |= emac_hwd_addr[0];	/* set high address */
+	reg |= dev->enetaddr[0];	/* set high address */
 	reg = reg << 8;
-	reg |= emac_hwd_addr[1];
+	reg |= dev->enetaddr[1];
 
-	out32 (EMAC_IAH, reg);
+	out32 (EMAC_IAH + hw_p->hw_addr, reg);
 
 	reg = 0x00000000;
-	reg |= emac_hwd_addr[2];	/* set low address  */
+	reg |= dev->enetaddr[2];	/* set low address  */
 	reg = reg << 8;
-	reg |= emac_hwd_addr[3];
+	reg |= dev->enetaddr[3];
 	reg = reg << 8;
-	reg |= emac_hwd_addr[4];
+	reg |= dev->enetaddr[4];
 	reg = reg << 8;
-	reg |= emac_hwd_addr[5];
-
-	out32 (EMAC_IAL, reg);
-
-	/* setup MAL tx & rx channel pointers */
-	mtdcr (maltxctp0r, tx);
-	mtdcr (malrxctp0r, rx);
-
-	/* Reset transmit and receive channels */
-	mtdcr (malrxcarr, 0x80000000);	/* 2 channels */
-	mtdcr (maltxcarr, 0x80000000);	/* 2 channels */
+	reg |= dev->enetaddr[5];
+
+	out32 (EMAC_IAL + hw_p->hw_addr, reg);
+	switch (devnum) {
+	case 1:
+		/* setup MAL tx & rx channel pointers */
+		/* For 405EP, the EMAC1 tx channel 0 is MAL tx channel 2 */
+		mtdcr (maltxctp2r, hw_p->tx);
+		mtdcr (malrxctp1r, hw_p->rx);
+		/* set RX buffer size */
+		mtdcr (malrcbs1, ENET_MAX_MTU_ALIGNED / 16);
+		break;
+	case 0:
+	default:
+		/* setup MAL tx & rx channel pointers */
+		mtdcr (maltxctp0r, hw_p->tx);
+		mtdcr (malrxctp0r, hw_p->rx);
+		/* set RX buffer size */
+		mtdcr (malrcbs0, ENET_MAX_MTU_ALIGNED / 16);
+		break;
+	}
 
 	/* Enable MAL transmit and receive channels */
-	mtdcr (maltxcasr, 0x80000000);	/* 1 channel */
-	mtdcr (malrxcasr, 0x80000000);	/* 1 channel */
-
-	/* set RX buffer size */
-	mtdcr (malrcbs0, ENET_MAX_MTU_ALIGNED / 16);
+	mtdcr (maltxcasr, (MAL_TXRX_CASR >> (hw_p->devnum * 2)));
+	mtdcr (malrxcasr, (MAL_TXRX_CASR >> hw_p->devnum));
 
 	/* set transmit enable & receive enable */
-	out32 (EMAC_M0, EMAC_M0_TXE | EMAC_M0_RXE);
+	out32 (EMAC_M0 + hw_p->hw_addr, EMAC_M0_TXE | EMAC_M0_RXE);
 
 	/* set receive fifo to 4k and tx fifo to 2k */
-	mode_reg = EMAC_M1_RFS_4K | EMAC_M1_TX_FIFO_2K;
+	mode_reg = in32 (EMAC_M1 + hw_p->hw_addr);
+	mode_reg |= EMAC_M1_RFS_4K | EMAC_M1_TX_FIFO_2K;
 
 	/* set speed */
 	if (speed == _100BASET)
@@ -416,7 +451,7 @@ static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
 	if (duplex == FULL)
 		mode_reg = mode_reg | 0x80000000 | EMAC_M1_IST;
 
-	out32 (EMAC_M1, mode_reg);
+	out32 (EMAC_M1 + hw_p->hw_addr, mode_reg);
 
 #if defined(CONFIG_440)
 	/* set speed in the ZMII bridge */
@@ -427,67 +462,53 @@ static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
 #endif
 
 	/* Enable broadcast and indvidual address */
-	out32 (EMAC_RXM, EMAC_RMR_BAE | EMAC_RMR_IAE
-	       /*| EMAC_RMR_ARRP| EMAC_RMR_SFCS | EMAC_RMR_SP */ );
+	/* TBS: enabling runts as some misbehaved nics will send runts */
+	out32 (EMAC_RXM + hw_p->hw_addr, EMAC_RMR_BAE | EMAC_RMR_IAE);
 
 	/* we probably need to set the tx mode1 reg? maybe at tx time */
 
 	/* set transmit request threshold register */
-	out32 (EMAC_TRTR, 0x18000000);	/* 256 byte threshold */
+	out32 (EMAC_TRTR + hw_p->hw_addr, 0x18000000);	/* 256 byte threshold */
 
-	/* set receive  low/high water mark register */
 #if defined(CONFIG_440)
 	/* 440GP has a 64 byte burst length */
-	out32 (EMAC_RX_HI_LO_WMARK, 0x80009000);
-	out32 (EMAC_TXM1,           0xf8640000);
-#else /* CONFIG_440 */
+	out32 (EMAC_RX_HI_LO_WMARK + hw_p->hw_addr, 0x0f002000);
+	out32 (EMAC_TXM1 + hw_p->hw_addr, 0xf8640000);
+#else
 	/* 405s have a 16 byte burst length */
-	out32 (EMAC_RX_HI_LO_WMARK, 0x0f002000);
-#endif /* CONFIG_440 */
+	out32 (EMAC_RX_HI_LO_WMARK + hw_p->hw_addr, 0x0f002000);
+#endif
+
 
 	/* Frame gap set */
-	out32 (EMAC_I_FRAME_GAP_REG, 0x00000008);
+	out32 (EMAC_I_FRAME_GAP_REG + hw_p->hw_addr, 0x00000008);
+
+	/* Set EMAC IER */
+	hw_p->emac_ier = EMAC_ISR_PTLE | EMAC_ISR_BFCS |
+		EMAC_ISR_ORE | EMAC_ISR_IRE;
+	if (speed == _100BASET)
+		hw_p->emac_ier = hw_p->emac_ier | EMAC_ISR_SYE;
+
+	out32 (EMAC_ISR + hw_p->hw_addr, 0xffffffff);	/* clear pending interrupts */
+	out32 (EMAC_IER + hw_p->hw_addr, hw_p->emac_ier);
 
-	if (first_init == 0) {
+	if (hw_p->first_init == 0) {
 		/*
 		 * Connect interrupt service routines
 		 */
-		irq_install_handler (VECNUM_EWU0, (interrupt_handler_t *) enetInt, NULL);
-		irq_install_handler (VECNUM_MS, (interrupt_handler_t *) enetInt, NULL);
-		irq_install_handler (VECNUM_MTE, (interrupt_handler_t *) enetInt, NULL);
-		irq_install_handler (VECNUM_MRE, (interrupt_handler_t *) enetInt, NULL);
-		irq_install_handler (VECNUM_TXDE, (interrupt_handler_t *) enetInt, NULL);
-		irq_install_handler (VECNUM_RXDE, (interrupt_handler_t *) enetInt, NULL);
-		irq_install_handler (VECNUM_ETH0, (interrupt_handler_t *) enetInt, NULL);
+#if !defined(CONFIG_405EP)
+		/* 405EP has one EWU interrupt */
+		irq_install_handler (VECNUM_EWU0 + (hw_p->devnum * 2),
+				     (interrupt_handler_t *) enetInt, dev);
+#endif
+		irq_install_handler (VECNUM_ETH0 + (hw_p->devnum * 2),
+				     (interrupt_handler_t *) enetInt, dev);
 	}
 
-	/* set up interrupt handler */
-	/* setup interrupt controler to take interrupts from the MAL &
-	   EMAC */
-	mtdcr (uicsr, 0xffffffff);	/* clear pending interrupts */
-	mtdcr (uicer, mfdcr (uicer) | MAL_UIC_DEF | EMAC_UIC_DEF);
-
-	/* set the MAL IER ??? names may change with new spec ??? */
-	mal_ier = MAL_IER_DE | MAL_IER_NE | MAL_IER_TE | MAL_IER_OPBE |
-		MAL_IER_PLBE;
-	mtdcr (malesr, 0xffffffff);	/* clear pending interrupts */
-	mtdcr (maltxdeir, 0xffffffff);	/* clear pending interrupts */
-	mtdcr (malrxdeir, 0xffffffff);	/* clear pending interrupts */
-	mtdcr (malier, mal_ier);
-
-	/* Set EMAC IER */
-	emac_ier = EMAC_ISR_PTLE | EMAC_ISR_BFCS |
-		EMAC_ISR_PTLE | EMAC_ISR_ORE  | EMAC_ISR_IRE;
-	if (speed == _100BASET)
-		emac_ier = emac_ier | EMAC_ISR_SYE;
-
-	out32 (EMAC_ISR, 0xffffffff);	/* clear pending interrupts */
-	out32 (EMAC_IER, emac_ier);
+	mtmsr (msr);		/* enable interrupts again */
 
-	mtmsr (msr);				/* enable interrupts again */
-
-	bis_save = bis;
-	first_init = 1;
+	hw_p->bis = bis;
+	hw_p->first_init = 1;
 
 	return (1);
 }
@@ -498,39 +519,43 @@ static int ppc_4xx_eth_send (struct eth_device *dev, volatile void *ptr, int len
 	struct enet_frame *ef_ptr;
 	ulong time_start, time_now;
 	unsigned long temp_txm0;
+	EMAC_405_HW_PST hw_p = dev->priv;
 
 	ef_ptr = (struct enet_frame *) ptr;
 
 	/*-----------------------------------------------------------------------+
 	 *  Copy in our address into the frame.
 	 *-----------------------------------------------------------------------*/
-	(void) memcpy (ef_ptr->source_addr, emac_hwd_addr, ENET_ADDR_LENGTH);
+	(void) memcpy (ef_ptr->source_addr, dev->enetaddr, ENET_ADDR_LENGTH);
 
 	/*-----------------------------------------------------------------------+
 	 * If frame is too long or too short, modify length.
 	 *-----------------------------------------------------------------------*/
+	/* TBS: where does the fragment go???? */
 	if (len > ENET_MAX_MTU)
 		len = ENET_MAX_MTU;
 
 	/*   memcpy ((void *) &tx_buff[tx_slot], (const void *) ptr, len); */
-	memcpy ((void *) txbuf_ptr, (const void *) ptr, len);
+	memcpy ((void *) hw_p->txbuf_ptr, (const void *) ptr, len);
 
 	/*-----------------------------------------------------------------------+
 	 * set TX Buffer busy, and send it
 	 *-----------------------------------------------------------------------*/
-	tx[tx_slot].ctrl = (MAL_TX_CTRL_LAST |
-			    EMAC_TX_CTRL_GFCS | EMAC_TX_CTRL_GP) &
+	hw_p->tx[hw_p->tx_slot].ctrl = (MAL_TX_CTRL_LAST |
+					EMAC_TX_CTRL_GFCS | EMAC_TX_CTRL_GP) &
 		~(EMAC_TX_CTRL_ISA | EMAC_TX_CTRL_RSA);
-	if ((NUM_TX_BUFF - 1) == tx_slot)
-		tx[tx_slot].ctrl |= MAL_TX_CTRL_WRAP;
+	if ((NUM_TX_BUFF - 1) == hw_p->tx_slot)
+		hw_p->tx[hw_p->tx_slot].ctrl |= MAL_TX_CTRL_WRAP;
+
+	hw_p->tx[hw_p->tx_slot].data_len = (short) len;
+	hw_p->tx[hw_p->tx_slot].ctrl |= MAL_TX_CTRL_READY;
 
-	tx[tx_slot].data_len = (short) len;
-	tx[tx_slot].ctrl |= MAL_TX_CTRL_READY;
+	__asm__ volatile ("eieio");
 
-    __asm__ volatile ("eieio");
-	out32 (EMAC_TXM0, in32 (EMAC_TXM0) | EMAC_TXM0_GNP0);
+	out32 (EMAC_TXM0 + hw_p->hw_addr,
+	       in32 (EMAC_TXM0 + hw_p->hw_addr) | EMAC_TXM0_GNP0);
 #ifdef INFO_405_ENET
-	packetSent++;
+	hw_p->stats.pkts_tx++;
 #endif
 
 	/*-----------------------------------------------------------------------+
@@ -538,7 +563,7 @@ static int ppc_4xx_eth_send (struct eth_device *dev, volatile void *ptr, int len
 	 *-----------------------------------------------------------------------*/
 	time_start = get_timer (0);
 	while (1) {
-		temp_txm0 = in32 (EMAC_TXM0);
+		temp_txm0 = in32 (EMAC_TXM0 + hw_p->hw_addr);
 		/* loop until either TINT turns on or 3 seconds elapse */
 		if ((temp_txm0 & EMAC_TXM0_GNP0) != 0) {
 			/* transmit is done, so now check for errors
@@ -555,15 +580,8 @@ static int ppc_4xx_eth_send (struct eth_device *dev, volatile void *ptr, int len
 	}
 }
 
-
 #if defined(CONFIG_440)
-/*-----------------------------------------------------------------------------+
-| EnetInt.
-| EnetInt is the interrupt handler.  It will determine the
-| cause of the interrupt and call the apporpriate servive
-| routine.
-+-----------------------------------------------------------------------------*/
-int enetInt ()
+int enetInt (struct eth_device *dev)
 {
 	int serviced;
 	int rc = -1;				/* default to not us */
@@ -571,6 +589,18 @@ int enetInt ()
 	unsigned long emac_isr = 0;
 	unsigned long mal_rx_eob;
 	unsigned long my_uic0msr, my_uic1msr;
+	EMAC_405_HW_PST hw_p;
+
+	/*
+	 * Because the mal is generic, we need to get the current
+	 * eth device
+	 */
+#if defined(CONFIG_NET_MULTI)
+	dev = eth_get_dev();
+#else
+	dev = emac0_dev;
+#endif
+	hw_p = dev->priv;
 
 	/* enter loop that stays in interrupt code until nothing to service */
 	do {
@@ -593,20 +623,20 @@ int enetInt ()
 			mal_isr = mfdcr (malesr);
 			/* look for mal error */
 			if (my_uic1msr & (UIC_MS | UIC_MTDE | UIC_MRDE)) {
-				mal_err (mal_isr, my_uic0msr, MAL_UIC_DEF, MAL_UIC_ERR);
+				mal_err (dev, mal_isr, my_uic0msr, MAL_UIC_DEF, MAL_UIC_ERR);
 				serviced = 1;
 				rc = 0;
 			}
 		}
 		if (UIC_ETH0 & my_uic1msr) {	/* look for EMAC errors */
-			emac_isr = in32 (EMAC_ISR);
-			if ((emac_ier & emac_isr) != 0) {
-				emac_err (emac_isr);
+			emac_isr = in32 (EMAC_ISR + hw_p->hw_addr);
+			if ((hw_p->emac_ier & emac_isr) != 0) {
+				emac_err (dev, emac_isr);
 				serviced = 1;
 				rc = 0;
 			}
 		}
-		if ((emac_ier & emac_isr)
+		if ((hw_p->emac_ier & emac_isr)
 		    || (my_uic1msr & (UIC_MS | UIC_MTDE | UIC_MRDE))) {
 			mtdcr (uic0sr, UIC_MRE); /* Clear */
 			mtdcr (uic1sr, UIC_ETH0 | UIC_MS | UIC_MTDE | UIC_MRDE); /* Clear */
@@ -617,10 +647,10 @@ int enetInt ()
 		/* check for EOB on valid channels            */
 		if (my_uic0msr & UIC_MRE) {
 			mal_rx_eob = mfdcr (malrxeobisr);
-			if ((mal_rx_eob & 0x80000000) != 0) {	/* call emac routine for channel 0 */
+			if ((mal_rx_eob & (0x80000000 >> hw_p->devnum)) != 0) {	/* call emac routine for channel 0 */
 				/* clear EOB
 				   mtdcr(malrxeobisr, mal_rx_eob); */
-				enet_rcv (emac_isr);
+				enet_rcv (dev, emac_isr);
 				/* indicate that we serviced an interrupt */
 				serviced = 1;
 				rc = 0;
@@ -632,187 +662,206 @@ int enetInt ()
 
 	return (rc);
 }
+
 #else /* CONFIG_440 */
-/*-----------------------------------------------------------------------------+
- * EnetInt.
- * EnetInt is the interrupt handler.  It will determine the
- * cause of the interrupt and call the apporpriate servive
- * routine.
- *-----------------------------------------------------------------------------*/
-int enetInt ()
+
+int enetInt (struct eth_device *dev)
 {
 	int serviced;
-	int rc = -1;				/* default to not us */
+	int rc = -1;		/* default to not us */
 	unsigned long mal_isr;
 	unsigned long emac_isr = 0;
 	unsigned long mal_rx_eob;
 	unsigned long my_uicmsr;
 
+	EMAC_405_HW_PST hw_p;
+
+	/*
+	 * Because the mal is generic, we need to get the current
+	 * eth device
+	 */
+#if defined(CONFIG_NET_MULTI)
+	dev = eth_get_dev();
+#else
+	dev = emac0_dev;
+#endif
+
+	hw_p = dev->priv;
+
 	/* enter loop that stays in interrupt code until nothing to service */
 	do {
 		serviced = 0;
 
 		my_uicmsr = mfdcr (uicmsr);
+
 		if ((my_uicmsr & (MAL_UIC_DEF | EMAC_UIC_DEF)) == 0) {	/* not for us */
 			return (rc);
 		}
-
-
 		/* get and clear controller status interrupts */
 		/* look at Mal and EMAC interrupts */
 		if ((MAL_UIC_DEF & my_uicmsr) != 0) {	/* we have a MAL interrupt */
 			mal_isr = mfdcr (malesr);
 			/* look for mal error */
 			if ((my_uicmsr & MAL_UIC_ERR) != 0) {
-				mal_err (mal_isr, my_uicmsr, MAL_UIC_DEF, MAL_UIC_ERR);
+				mal_err (dev, mal_isr, my_uicmsr, MAL_UIC_DEF, MAL_UIC_ERR);
 				serviced = 1;
 				rc = 0;
 			}
 		}
-		if ((EMAC_UIC_DEF & my_uicmsr) != 0) {	/* look for EMAC errors */
-			emac_isr = in32 (EMAC_ISR);
-			if ((emac_ier & emac_isr) != 0) {
-				emac_err (emac_isr);
+
+		/* port by port dispatch of emac interrupts */
+
+		if ((SEL_UIC_DEF(hw_p->devnum) & my_uicmsr) != 0) {	/* look for EMAC errors */
+			emac_isr = in32 (EMAC_ISR + hw_p->hw_addr);
+			if ((hw_p->emac_ier & emac_isr) != 0) {
+				emac_err (dev, emac_isr);
 				serviced = 1;
 				rc = 0;
 			}
 		}
-		if (((emac_ier & emac_isr) != 0) | ((MAL_UIC_ERR & my_uicmsr) != 0)) {
-			mtdcr (uicsr, MAL_UIC_DEF | EMAC_UIC_DEF); /* Clear */
+		if (((hw_p->emac_ier & emac_isr) != 0) || ((MAL_UIC_ERR & my_uicmsr) != 0)) {
+			mtdcr (uicsr, MAL_UIC_DEF | SEL_UIC_DEF(hw_p->devnum)); /* Clear */
 			return (rc);		/* we had errors so get out */
 		}
 
-
+		/* handle MAX TX EOB interrupt from a tx */
+		if (my_uicmsr & UIC_MAL_TXEOB) {
+			mal_rx_eob = mfdcr (maltxeobisr);
+			mtdcr (maltxeobisr, mal_rx_eob);
+			mtdcr (uicsr, UIC_MAL_TXEOB);
+		}
 		/* handle MAL RX EOB  interupt from a receive */
-		/* check for EOB on valid channels            */
-		if ((my_uicmsr & UIC_MAL_RXEOB) != 0) {
+		/* check for EOB on valid channels	      */
+		if (my_uicmsr & UIC_MAL_RXEOB)
+		{
 			mal_rx_eob = mfdcr (malrxeobisr);
-			if ((mal_rx_eob & 0x80000000) != 0) {	/* call emac routine for channel 0 */
+			if ((mal_rx_eob & (0x80000000 >> hw_p->devnum)) != 0) {	/* call emac routine for channel x */
 				/* clear EOB
-				   mtdcr(malrxeobisr, mal_rx_eob); */
-				enet_rcv (emac_isr);
+				 mtdcr(malrxeobisr, mal_rx_eob); */
+				enet_rcv (dev, emac_isr);
 				/* indicate that we serviced an interrupt */
 				serviced = 1;
 				rc = 0;
 			}
 		}
-		mtdcr (uicsr, MAL_UIC_DEF | EMAC_UIC_DEF);	/* Clear */
+		mtdcr (uicsr, MAL_UIC_DEF|EMAC_UIC_DEF|EMAC_UIC_DEF1);	/* Clear */
 	}
 	while (serviced);
 
 	return (rc);
 }
-#endif /* CONFIG_440 */
-
+#endif
 /*-----------------------------------------------------------------------------+
  *  MAL Error Routine
  *-----------------------------------------------------------------------------*/
-static void mal_err (unsigned long isr, unsigned long uic, unsigned long maldef,
-	      unsigned long mal_errr)
+static void mal_err (struct eth_device *dev, unsigned long isr,
+		     unsigned long uic, unsigned long maldef,
+		     unsigned long mal_errr)
 {
-	mtdcr (malesr, isr);		/* clear interrupt */
+	EMAC_405_HW_PST hw_p = dev->priv;
+
+	mtdcr (malesr, isr);	/* clear interrupt */
 
 	/* clear DE interrupt */
 	mtdcr (maltxdeir, 0xC0000000);
 	mtdcr (malrxdeir, 0x80000000);
 
 #ifdef INFO_405_ENET
-	printf ("\nMAL error occured.... ISR = %lx UIC = = %lx  MAL_DEF = %lx  MAL_ERR= %lx \n",
-		isr, uic, maldef, mal_errr);
-#else
-#if 0
-	/*
-	 * MAL error is RX DE error (out of rx buffers)! This is OK here, upon
-	 * many incoming packets with only 4 rx buffers.
-	 */
-	printf ("M");			/* just to see something upon mal error */
-#endif
+	printf ("\nMAL error occured.... ISR = %lx UIC = = %lx  MAL_DEF = %lx  MAL_ERR= %lx \n", isr, uic, maldef, mal_errr);
 #endif
 
-	eth_init (bis_save);		/* start again... */
+	eth_init (hw_p->bis);	/* start again... */
 }
 
 /*-----------------------------------------------------------------------------+
  *  EMAC Error Routine
  *-----------------------------------------------------------------------------*/
-static void emac_err (unsigned long isr)
+static void emac_err (struct eth_device *dev, unsigned long isr)
 {
-	printf ("EMAC error occured.... ISR = %lx\n", isr);
-	out32 (EMAC_ISR, isr);
+	EMAC_405_HW_PST hw_p = dev->priv;
+
+	printf ("EMAC%d error occured.... ISR = %lx\n", hw_p->devnum, isr);
+	out32 (EMAC_ISR + hw_p->hw_addr, isr);
 }
 
 /*-----------------------------------------------------------------------------+
  *  enet_rcv() handles the ethernet receive data
  *-----------------------------------------------------------------------------*/
-static void enet_rcv (unsigned long malisr)
+static void enet_rcv (struct eth_device *dev, unsigned long malisr)
 {
 	struct enet_frame *ef_ptr;
 	unsigned long data_len;
 	unsigned long rx_eob_isr;
+	EMAC_405_HW_PST hw_p = dev->priv;
 
 	int handled = 0;
 	int i;
 	int loop_count = 0;
 
 	rx_eob_isr = mfdcr (malrxeobisr);
-	if ((0x80000000 >> (EMAC_RXCHL - 1)) & rx_eob_isr) {
+	if ((0x80000000 >> hw_p->devnum) & rx_eob_isr) {
 		/* clear EOB */
 		mtdcr (malrxeobisr, rx_eob_isr);
 
 		/* EMAC RX done */
-		while (1) {				/* do all */
-			i = rx_slot;
+		while (1) {	/* do all */
+			i = hw_p->rx_slot;
 
-			if ((MAL_RX_CTRL_EMPTY & rx[i].ctrl)
+			if ((MAL_RX_CTRL_EMPTY & hw_p->rx[i].ctrl)
 			    || (loop_count >= NUM_RX_BUFF))
 				break;
 			loop_count++;
-			rx_slot++;
-			if (NUM_RX_BUFF == rx_slot)
-				rx_slot = 0;
+			hw_p->rx_slot++;
+			if (NUM_RX_BUFF == hw_p->rx_slot)
+				hw_p->rx_slot = 0;
 			handled++;
-			data_len = (unsigned long) rx[i].data_len;	/* Get len */
+			data_len = (unsigned long) hw_p->rx[i].data_len;	/* Get len */
 			if (data_len) {
 				if (data_len > ENET_MAX_MTU)	/* Check len */
 					data_len = 0;
 				else {
-					if (EMAC_RX_ERRORS & rx[i].ctrl) {	/* Check Errors */
+					if (EMAC_RX_ERRORS & hw_p->rx[i].ctrl) {	/* Check Errors */
 						data_len = 0;
-						stats.rx_err_log[rx_err_index] = rx[i].ctrl;
-						rx_err_index++;
-						if (rx_err_index == MAX_ERR_LOG)
-							rx_err_index = 0;
-					}	/* emac_erros         */
-				}		/* data_len < max mtu */
-			}			/* if data_len        */
+						hw_p->stats.rx_err_log[hw_p->
+								       rx_err_index]
+							= hw_p->rx[i].ctrl;
+						hw_p->rx_err_index++;
+						if (hw_p->rx_err_index ==
+						    MAX_ERR_LOG)
+							hw_p->rx_err_index =
+								0;
+					}	/* emac_erros */
+				}	/* data_len < max mtu */
+			}	/* if data_len */
 			if (!data_len) {	/* no data */
-				rx[i].ctrl |= MAL_RX_CTRL_EMPTY;	/* Free Recv Buffer */
+				hw_p->rx[i].ctrl |= MAL_RX_CTRL_EMPTY;	/* Free Recv Buffer */
 
-				stats.emac.data_len_err++;	/* Error at Rx */
+				hw_p->stats.data_len_err++;	/* Error at Rx */
 			}
 
 			/* !data_len */
 			/* AS.HARNOIS */
 			/* Check if user has already eaten buffer */
 			/* if not => ERROR */
-			else if (rx_ready[rx_i_index] != -1) {
-				if (is_receiving)
+			else if (hw_p->rx_ready[hw_p->rx_i_index] != -1) {
+				if (hw_p->is_receiving)
 					printf ("ERROR : Receive buffers are full!\n");
 				break;
 			} else {
-				stats.emac.rx_frames++;
-				stats.emac.rx += data_len;
-				ef_ptr = (struct enet_frame *) rx[i].data_ptr;
+				hw_p->stats.rx_frames++;
+				hw_p->stats.rx += data_len;
+				ef_ptr = (struct enet_frame *) hw_p->rx[i].
+					data_ptr;
 #ifdef INFO_405_ENET
-				packetReceived++;
+				hw_p->stats.pkts_rx++;
 #endif
 				/* AS.HARNOIS
 				 * use ring buffer
 				 */
-				rx_ready[rx_i_index] = i;
-				rx_i_index++;
-				if (NUM_RX_BUFF == rx_i_index)
-					rx_i_index = 0;
+				hw_p->rx_ready[hw_p->rx_i_index] = i;
+				hw_p->rx_i_index++;
+				if (NUM_RX_BUFF == hw_p->rx_i_index)
+					hw_p->rx_i_index = 0;
 
 				/* printf("X");  /|* test-only *|/ */
 
@@ -820,10 +869,10 @@ static void enet_rcv (unsigned long malisr)
 				 * free receive buffer only when
 				 * buffer has been handled (eth_rx)
 				 rx[i].ctrl |= MAL_RX_CTRL_EMPTY;
-				*/
-			}			/* if data_len */
-		}				/* while */
-	}					/* if EMACK_RXCHL */
+				 */
+			}	/* if data_len */
+		}		/* while */
+	}			/* if EMACK_RXCHL */
 }
 
 
@@ -832,15 +881,16 @@ static int ppc_4xx_eth_rx (struct eth_device *dev)
 	int length;
 	int user_index;
 	unsigned long msr;
+	EMAC_405_HW_PST hw_p = dev->priv;
 
-	is_receiving = 1;			/* tell driver */
+	hw_p->is_receiving = 1;	/* tell driver */
 
 	for (;;) {
 		/* AS.HARNOIS
 		 * use ring buffer and
 		 * get index from rx buffer desciptor queue
 		 */
-		user_index = rx_ready[rx_u_index];
+		user_index = hw_p->rx_ready[hw_p->rx_u_index];
 		if (user_index == -1) {
 			length = -1;
 			break;	/* nothing received - leave for() loop */
@@ -849,72 +899,157 @@ static int ppc_4xx_eth_rx (struct eth_device *dev)
 		msr = mfmsr ();
 		mtmsr (msr & ~(MSR_EE));
 
-		length = rx[user_index].data_len;
+		length = hw_p->rx[user_index].data_len;
 
 		/* Pass the packet up to the protocol layers. */
 		/*       NetReceive(NetRxPackets[rxIdx], length - 4); */
 		/*       NetReceive(NetRxPackets[i], length); */
 		NetReceive (NetRxPackets[user_index], length - 4);
 		/* Free Recv Buffer */
-		rx[user_index].ctrl |= MAL_RX_CTRL_EMPTY;
+		hw_p->rx[user_index].ctrl |= MAL_RX_CTRL_EMPTY;
 		/* Free rx buffer descriptor queue */
-		rx_ready[rx_u_index] = -1;
-		rx_u_index++;
-		if (NUM_RX_BUFF == rx_u_index)
-			rx_u_index = 0;
+		hw_p->rx_ready[hw_p->rx_u_index] = -1;
+		hw_p->rx_u_index++;
+		if (NUM_RX_BUFF == hw_p->rx_u_index)
+			hw_p->rx_u_index = 0;
 
 #ifdef INFO_405_ENET
-		packetHandled++;
+		hw_p->stats.pkts_handled++;
 #endif
 
-		mtmsr (msr);			/* Enable IRQ's */
+		mtmsr (msr);	/* Enable IRQ's */
 	}
 
-	is_receiving = 0;			/* tell driver */
+	hw_p->is_receiving = 0;	/* tell driver */
 
 	return length;
 }
 
-#if defined(CONFIG_NET_MULTI)
-int ppc_4xx_eth_initialize(bd_t *bis)
+static int virgin = 0;
+int ppc_4xx_eth_initialize (bd_t * bis)
 {
 	struct eth_device *dev;
-	int                eth_num = 0;
+	int eth_num = 0;
 
-	dev = malloc (sizeof *dev);
-	if (dev == NULL) {
-		printf(__FUNCTION__ ": Cannot allocate eth_device\n");
-		return (-1);
-	}
+	EMAC_405_HW_PST hw = NULL;
 
-	sprintf(dev->name, "ppc_4xx_eth%d", eth_num);
-	dev->priv = (void *) eth_num;
-	dev->init = ppc_4xx_eth_init;
-	dev->halt = ppc_4xx_eth_halt;
-	dev->send = ppc_4xx_eth_send;
-	dev->recv = ppc_4xx_eth_rx;
+	for (eth_num = 0; eth_num < EMAC_NUM_DEV; eth_num++) {
+
+		/* Allocate device structure */
+		dev = (struct eth_device *) malloc (sizeof (*dev));
+		if (dev == NULL) {
+			printf ("ppc_405x_eth_initialize: "
+				"Cannot allocate eth_device %d\n", eth_num);
+			return (-1);
+		}
+		/* Allocate our private use data */
+		hw = (EMAC_405_HW_PST) malloc (sizeof (*hw));
+		if (hw == NULL) {
+			printf ("ppc_405x_eth_initialize: "
+				"Cannot allocate private hw data for eth_device %d",
+				eth_num);
+			free (dev);
+			return (-1);
+		}
 
-	eth_register (dev);
+		switch (eth_num) {
+		case 0:
+			hw->hw_addr = 0;
+			memcpy (dev->enetaddr, bis->bi_enetaddr, 6);
+			break;
+#if defined(CONFIG_NET_MULTI)
+		case 1:
+			hw->hw_addr = 0x100;
+			memcpy (dev->enetaddr, bis->bi_enet1addr, 6);
+			break;
+#endif
+		default:
+			hw->hw_addr = 0;
+			memcpy (dev->enetaddr, bis->bi_enetaddr, 6);
+			break;
+		}
+
+		hw->devnum = eth_num;
+		hw->print_speed = 1;
+
+		sprintf (dev->name, "ppc_405x_eth%d", eth_num);
+		dev->priv = (void *) hw;
+		dev->init = ppc_4xx_eth_init;
+		dev->halt = ppc_4xx_eth_halt;
+		dev->send = ppc_4xx_eth_send;
+		dev->recv = ppc_4xx_eth_rx;
+
+		if (0 == virgin) {
+			/* set the MAL IER ??? names may change with new spec ??? */
+			mal_ier =
+				MAL_IER_DE | MAL_IER_NE | MAL_IER_TE |
+				MAL_IER_OPBE | MAL_IER_PLBE;
+			mtdcr (malesr, 0xffffffff);	/* clear pending interrupts */
+			mtdcr (maltxdeir, 0xffffffff);	/* clear pending interrupts */
+			mtdcr (malrxdeir, 0xffffffff);	/* clear pending interrupts */
+			mtdcr (malier, mal_ier);
+
+#if defined(CONFIG_405EP)
+			/* 405EP has one EWU interrupt */
+			irq_install_handler (VECNUM_EWU0,
+					     (interrupt_handler_t *) enetInt,
+					     dev);
+#endif
+			/* install MAL interrupt handler */
+			irq_install_handler (VECNUM_MS,
+					     (interrupt_handler_t *) enetInt,
+					     dev);
+			irq_install_handler (VECNUM_MTE,
+					     (interrupt_handler_t *) enetInt,
+					     dev);
+			irq_install_handler (VECNUM_MRE,
+					     (interrupt_handler_t *) enetInt,
+					     dev);
+			irq_install_handler (VECNUM_TXDE,
+					     (interrupt_handler_t *) enetInt,
+					     dev);
+			irq_install_handler (VECNUM_RXDE,
+					     (interrupt_handler_t *) enetInt,
+					     dev);
+			virgin = 1;
+		}
+
+#if defined(CONFIG_NET_MULTI)
+		eth_register (dev);
+#else
+		emac0_dev = dev;
+#endif
+
+	}			/* end for each supported device */
+
+	return (1);
 }
-#else /* !defined(CONFIG_NET_MULTI) */
-void eth_halt (void)
-{
-	ppc_4xx_eth_halt(NULL);
+
+#if !defined(CONFIG_NET_MULTI)
+void eth_halt (void) {
+	if (emac0_dev) {
+		ppc_4xx_eth_halt(emac0_dev);
+		free(emac0_dev);
+		emac0_dev = NULL;
+	}
 }
 
 int eth_init (bd_t *bis)
 {
-	return (ppc_4xx_eth_init(NULL, bis));
+	ppc_4xx_eth_initialize(bis);
+	return(ppc_4xx_eth_init(emac0_dev, bis));
 }
+
 int eth_send(volatile void *packet, int length)
 {
-	return (ppc_4xx_eth_send(NULL, packet, length));
+
+	return (ppc_4xx_eth_send(emac0_dev, packet, length));
 }
 
 int eth_rx(void)
 {
-	return (ppc_4xx_eth_rx(NULL));
+	return (ppc_4xx_eth_rx(emac0_dev));
 }
-#endif /* !defined(CONFIG_NET_MULTI) */
+#endif
 
-#endif	/* CONFIG_405GP */
+#endif /* CONFIG_405 */
diff --git a/cpu/ppc4xx/miiphy.c b/cpu/ppc4xx/miiphy.c
index 3d343ee..cb9dccd 100644
--- a/cpu/ppc4xx/miiphy.c
+++ b/cpu/ppc4xx/miiphy.c
@@ -48,8 +48,8 @@
 #include <405_mal.h>
 #include <miiphy.h>
 
-#if (defined(CONFIG_405GP) || defined(CONFIG_405EP) || defined(CONFIG_440)) \
-   && !defined (CONFIG_NET_MULTI)
+#if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
+  (defined(CONFIG_440) && !defined(CONFIG_NET_MULTI))
 
 /***********************************************************/
 /* Dump out to the screen PHY regs                         */
@@ -78,6 +78,12 @@ void miiphy_dump (unsigned char addr)
 
 /***********************************************************/
 /* read a phy reg and return the value with a rc           */
+/* Note: We are referencing to EMAC_STACR register         */
+/* @(EMAC_BASE + 92) because  of:                          */
+/* - 405EP has only STACR for EMAC0 pinned out             */
+/* - 405GP has onle one EMAC0                              */
+/* - For 440 this module gets compiled only for            */
+/*   !CONFIG_NET_MULTI, i.e. only EMAC0 is supported.      */
 /***********************************************************/
 
 int miiphy_read (unsigned char addr, unsigned char reg,