net: add altera triple speeds ethernet mac driver

This driver supports the Altera triple speeds 10/100/1000 ethernet
mac.

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>

1 files changed, 935 insertions, 0 deletions

diff --git a/drivers/net/altera_tse.c b/drivers/net/altera_tse.c
new file mode 100644
index 0000000000..59279049aa
--- /dev/null
+++ b/drivers/net/altera_tse.c
@@ -0,0 +1,935 @@
+/*
+ * Altera 10/100/1000 triple speed ethernet mac driver
+ *
+ * Copyright (C) 2008 Altera Corporation.
+ * Copyright (C) 2010 Thomas Chou <thomas@wytron.com.tw>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <config.h>
+#include <common.h>
+#include <malloc.h>
+#include <net.h>
+#include <command.h>
+#include <asm/cache.h>
+#include <asm/dma-mapping.h>
+#include <miiphy.h>
+#include "altera_tse.h"
+
+/* sgdma debug - print descriptor */
+static void alt_sgdma_print_desc(volatile struct alt_sgdma_descriptor *desc)
+{
+	debug("SGDMA DEBUG :\n");
+	debug("desc->source : 0x%x \n", (unsigned int)desc->source);
+	debug("desc->destination : 0x%x \n", (unsigned int)desc->destination);
+	debug("desc->next : 0x%x \n", (unsigned int)desc->next);
+	debug("desc->source_pad : 0x%x \n", (unsigned int)desc->source_pad);
+	debug("desc->destination_pad : 0x%x \n",
+	      (unsigned int)desc->destination_pad);
+	debug("desc->next_pad : 0x%x \n", (unsigned int)desc->next_pad);
+	debug("desc->bytes_to_transfer : 0x%x \n",
+	      (unsigned int)desc->bytes_to_transfer);
+	debug("desc->actual_bytes_transferred : 0x%x \n",
+	      (unsigned int)desc->actual_bytes_transferred);
+	debug("desc->descriptor_status : 0x%x \n",
+	      (unsigned int)desc->descriptor_status);
+	debug("desc->descriptor_control : 0x%x \n",
+	      (unsigned int)desc->descriptor_control);
+}
+
+/* This is a generic routine that the SGDMA mode-specific routines
+ * call to populate a descriptor.
+ * arg1	    :pointer to first SGDMA descriptor.
+ * arg2	    :pointer to next  SGDMA descriptor.
+ * arg3	    :Address to where data to be written.
+ * arg4	    :Address from where data to be read.
+ * arg5	    :no of byte to transaction.
+ * arg6	    :variable indicating to generate start of packet or not
+ * arg7	    :read fixed
+ * arg8	    :write fixed
+ * arg9	    :read burst
+ * arg10    :write burst
+ * arg11    :atlantic_channel number
+ */
+static void alt_sgdma_construct_descriptor_burst(
+	volatile struct alt_sgdma_descriptor *desc,
+	volatile struct alt_sgdma_descriptor *next,
+	unsigned int *read_addr,
+	unsigned int *write_addr,
+	unsigned short length_or_eop,
+	int generate_eop,
+	int read_fixed,
+	int write_fixed_or_sop,
+	int read_burst,
+	int write_burst,
+	unsigned char atlantic_channel)
+{
+	/*
+	 * Mark the "next" descriptor as "not" owned by hardware. This prevents
+	 * The SGDMA controller from continuing to process the chain. This is
+	 * done as a single IO write to bypass cache, without flushing
+	 * the entire descriptor, since only the 8-bit descriptor status must
+	 * be flushed.
+	 */
+	if (!next)
+		debug("Next descriptor not defined!!\n");
+
+	next->descriptor_control = (next->descriptor_control &
+		~ALT_SGDMA_DESCRIPTOR_CONTROL_OWNED_BY_HW_MSK);
+
+	desc->source = (unsigned int *)((unsigned int)read_addr & 0x1FFFFFFF);
+	desc->destination =
+	    (unsigned int *)((unsigned int)write_addr & 0x1FFFFFFF);
+	desc->next = (unsigned int *)((unsigned int)next & 0x1FFFFFFF);
+	desc->source_pad = 0x0;
+	desc->destination_pad = 0x0;
+	desc->next_pad = 0x0;
+	desc->bytes_to_transfer = length_or_eop;
+	desc->actual_bytes_transferred = 0;
+	desc->descriptor_status = 0x0;
+
+	/* SGDMA burst not currently supported */
+	desc->read_burst = 0;
+	desc->write_burst = 0;
+
+	/*
+	 * Set the descriptor control block as follows:
+	 * - Set "owned by hardware" bit
+	 * - Optionally set "generate EOP" bit
+	 * - Optionally set the "read from fixed address" bit
+	 * - Optionally set the "write to fixed address bit (which serves
+	 *   serves as a "generate SOP" control bit in memory-to-stream mode).
+	 * - Set the 4-bit atlantic channel, if specified
+	 *
+	 * Note this step is performed after all other descriptor information
+	 * has been filled out so that, if the controller already happens to be
+	 * pointing at this descriptor, it will not run (via the "owned by
+	 * hardware" bit) until all other descriptor has been set up.
+	 */
+
+	desc->descriptor_control =
+	    ((ALT_SGDMA_DESCRIPTOR_CONTROL_OWNED_BY_HW_MSK) |
+	     (generate_eop ?
+	      ALT_SGDMA_DESCRIPTOR_CONTROL_GENERATE_EOP_MSK : 0x0) |
+	     (read_fixed ?
+	      ALT_SGDMA_DESCRIPTOR_CONTROL_READ_FIXED_ADDRESS_MSK : 0x0) |
+	     (write_fixed_or_sop ?
+	      ALT_SGDMA_DESCRIPTOR_CONTROL_WRITE_FIXED_ADDRESS_MSK : 0x0) |
+	     (atlantic_channel ? ((atlantic_channel & 0x0F) << 3) : 0)
+		    );
+}
+
+static int alt_sgdma_do_sync_transfer(volatile struct alt_sgdma_registers *dev,
+			       volatile struct alt_sgdma_descriptor *desc)
+{
+	unsigned int status;
+	int counter = 0;
+
+	/* Wait for any pending transfers to complete */
+	alt_sgdma_print_desc(desc);
+	status = dev->status;
+
+	counter = 0;
+	while (dev->status & ALT_SGDMA_STATUS_BUSY_MSK) {
+		if (counter++ > ALT_TSE_SGDMA_BUSY_WATCHDOG_CNTR)
+			break;
+	}
+
+	if (counter >= ALT_TSE_SGDMA_BUSY_WATCHDOG_CNTR)
+		debug("Timeout waiting sgdma in do sync!\n");
+
+	/*
+	 * Clear any (previous) status register information
+	 * that might occlude our error checking later.
+	 */
+	dev->status = 0xFF;
+
+	/* Point the controller at the descriptor */
+	dev->next_descriptor_pointer = (unsigned int)desc & 0x1FFFFFFF;
+	debug("next desc in sgdma 0x%x\n",
+	      (unsigned int)dev->next_descriptor_pointer);
+
+	/*
+	 * Set up SGDMA controller to:
+	 * - Disable interrupt generation
+	 * - Run once a valid descriptor is written to controller
+	 * - Stop on an error with any particular descriptor
+	 */
+	dev->control = (ALT_SGDMA_CONTROL_RUN_MSK |
+			ALT_SGDMA_CONTROL_STOP_DMA_ER_MSK);
+
+	/* Wait for the descriptor (chain) to complete */
+	status = dev->status;
+	debug("wait for sgdma....");
+	while (dev->status & ALT_SGDMA_STATUS_BUSY_MSK)
+		;
+	debug("done\n");
+
+	/* Clear Run */
+	dev->control = (dev->control & (~ALT_SGDMA_CONTROL_RUN_MSK));
+
+	/* Get & clear status register contents */
+	status = dev->status;
+	dev->status = 0xFF;
+
+	/* we really should check if the transfer completes properly */
+	debug("tx sgdma status = 0x%x", status);
+	return 0;
+}
+
+static int alt_sgdma_do_async_transfer(volatile struct alt_sgdma_registers *dev,
+				volatile struct alt_sgdma_descriptor *desc)
+{
+	unsigned int status;
+	int counter = 0;
+
+	/* Wait for any pending transfers to complete */
+	alt_sgdma_print_desc(desc);
+	status = dev->status;
+
+	counter = 0;
+	while (dev->status & ALT_SGDMA_STATUS_BUSY_MSK) {
+		if (counter++ > ALT_TSE_SGDMA_BUSY_WATCHDOG_CNTR)
+			break;
+	}
+
+	if (counter >= ALT_TSE_SGDMA_BUSY_WATCHDOG_CNTR)
+		debug("Timeout waiting sgdma in do async!\n");
+
+	/*
+	 * Clear any (previous) status register information
+	 * that might occlude our error checking later.
+	 */
+	dev->status = 0xFF;
+
+	/* Point the controller at the descriptor */
+	dev->next_descriptor_pointer = (unsigned int)desc & 0x1FFFFFFF;
+
+	/*
+	 * Set up SGDMA controller to:
+	 * - Disable interrupt generation
+	 * - Run once a valid descriptor is written to controller
+	 * - Stop on an error with any particular descriptor
+	 */
+	dev->control = (ALT_SGDMA_CONTROL_RUN_MSK |
+			ALT_SGDMA_CONTROL_STOP_DMA_ER_MSK);
+
+	/* we really should check if the transfer completes properly */
+	return 0;
+}
+
+/* u-boot interface */
+static int tse_adjust_link(struct altera_tse_priv *priv)
+{
+	unsigned int refvar;
+
+	refvar = priv->mac_dev->command_config.image;
+
+	if (!(priv->duplexity))
+		refvar |= ALTERA_TSE_CMD_HD_ENA_MSK;
+	else
+		refvar &= ~ALTERA_TSE_CMD_HD_ENA_MSK;
+
+	switch (priv->speed) {
+	case 1000:
+		refvar |= ALTERA_TSE_CMD_ETH_SPEED_MSK;
+		refvar &= ~ALTERA_TSE_CMD_ENA_10_MSK;
+		break;
+	case 100:
+		refvar &= ~ALTERA_TSE_CMD_ETH_SPEED_MSK;
+		refvar &= ~ALTERA_TSE_CMD_ENA_10_MSK;
+		break;
+	case 10:
+		refvar &= ~ALTERA_TSE_CMD_ETH_SPEED_MSK;
+		refvar |= ALTERA_TSE_CMD_ENA_10_MSK;
+		break;
+	}
+	priv->mac_dev->command_config.image = refvar;
+
+	return 0;
+}
+
+static int tse_eth_send(struct eth_device *dev,
+			volatile void *packet, int length)
+{
+	struct altera_tse_priv *priv = dev->priv;
+	volatile struct alt_sgdma_registers *tx_sgdma = priv->sgdma_tx;
+	volatile struct alt_sgdma_descriptor *tx_desc =
+	    (volatile struct alt_sgdma_descriptor *)priv->tx_desc;
+
+	volatile struct alt_sgdma_descriptor *tx_desc_cur =
+	    (volatile struct alt_sgdma_descriptor *)&tx_desc[0];
+
+	flush_dcache((unsigned long)packet, length);
+	alt_sgdma_construct_descriptor_burst(
+		(volatile struct alt_sgdma_descriptor *)&tx_desc[0],
+		(volatile struct alt_sgdma_descriptor *)&tx_desc[1],
+		(unsigned int *)packet,	/* read addr */
+		(unsigned int *)0,
+		length,	/* length or EOP ,will change for each tx */
+		0x1,	/* gen eop */
+		0x0,	/* read fixed */
+		0x1,	/* write fixed or sop */
+		0x0,	/* read burst */
+		0x0,	/* write burst */
+		0x0	/* channel */
+		);
+	debug("TX Packet @ 0x%x,0x%x bytes", (unsigned int)packet, length);
+
+	/* send the packet */
+	debug("sending packet\n");
+	alt_sgdma_do_sync_transfer(tx_sgdma, tx_desc_cur);
+	debug("sent %d bytes\n", tx_desc_cur->actual_bytes_transferred);
+	return tx_desc_cur->actual_bytes_transferred;
+}
+
+static int tse_eth_rx(struct eth_device *dev)
+{
+	int packet_length = 0;
+	struct altera_tse_priv *priv = dev->priv;
+	volatile struct alt_sgdma_descriptor *rx_desc =
+	    (volatile struct alt_sgdma_descriptor *)priv->rx_desc;
+	volatile struct alt_sgdma_descriptor *rx_desc_cur = &rx_desc[0];
+
+	if (rx_desc_cur->descriptor_status &
+	    ALT_SGDMA_DESCRIPTOR_STATUS_TERMINATED_BY_EOP_MSK) {
+		debug("got packet\n");
+		packet_length = rx_desc->actual_bytes_transferred;
+		NetReceive(NetRxPackets[0], packet_length);
+
+		/* start descriptor again */
+		flush_dcache((unsigned long)(NetRxPackets[0]), PKTSIZE_ALIGN);
+		alt_sgdma_construct_descriptor_burst(
+			(volatile struct alt_sgdma_descriptor *)&rx_desc[0],
+			(volatile struct alt_sgdma_descriptor *)&rx_desc[1],
+			(unsigned int)0x0,	/* read addr */
+			(unsigned int *)NetRxPackets[0],
+			0x0,	/* length or EOP */
+			0x0,	/* gen eop */
+			0x0,	/* read fixed */
+			0x0,	/* write fixed or sop */
+			0x0,	/* read burst */
+			0x0,	/* write burst */
+			0x0	/* channel */
+		    );
+
+		/* setup the sgdma */
+		alt_sgdma_do_async_transfer(priv->sgdma_rx, &rx_desc[0]);
+	}
+
+	return -1;
+}
+
+static void tse_eth_halt(struct eth_device *dev)
+{
+	/* don't do anything! */
+	/* this gets called after each uboot  */
+	/* network command.  don't need to reset the thing all of the time */
+}
+
+static void tse_eth_reset(struct eth_device *dev)
+{
+	/* stop sgdmas, disable tse receive */
+	struct altera_tse_priv *priv = dev->priv;
+	volatile struct alt_tse_mac *mac_dev = priv->mac_dev;
+	volatile struct alt_sgdma_registers *rx_sgdma = priv->sgdma_rx;
+	volatile struct alt_sgdma_registers *tx_sgdma = priv->sgdma_tx;
+	int counter;
+	volatile struct alt_sgdma_descriptor *rx_desc =
+	    (volatile struct alt_sgdma_descriptor *)&priv->rx_desc[0];
+
+	/* clear rx desc & wait for sgdma to complete */
+	rx_desc->descriptor_control = 0;
+	rx_sgdma->control = 0;
+	counter = 0;
+	while (rx_sgdma->status & ALT_SGDMA_STATUS_BUSY_MSK) {
+		if (counter++ > ALT_TSE_SGDMA_BUSY_WATCHDOG_CNTR)
+			break;
+	}
+
+	if (counter >= ALT_TSE_SGDMA_BUSY_WATCHDOG_CNTR) {
+		debug("Timeout waiting for rx sgdma!\n");
+		rx_sgdma->control &= ALT_SGDMA_CONTROL_SOFTWARERESET_MSK;
+		rx_sgdma->control &= ALT_SGDMA_CONTROL_SOFTWARERESET_MSK;
+	}
+
+	counter = 0;
+	tx_sgdma->control = 0;
+	while (tx_sgdma->status & ALT_SGDMA_STATUS_BUSY_MSK) {
+		if (counter++ > ALT_TSE_SGDMA_BUSY_WATCHDOG_CNTR)
+			break;
+	}
+
+	if (counter >= ALT_TSE_SGDMA_BUSY_WATCHDOG_CNTR) {
+		debug("Timeout waiting for tx sgdma!\n");
+		tx_sgdma->control &= ALT_SGDMA_CONTROL_SOFTWARERESET_MSK;
+		tx_sgdma->control &= ALT_SGDMA_CONTROL_SOFTWARERESET_MSK;
+	}
+	/* reset the mac */
+	mac_dev->command_config.bits.transmit_enable = 1;
+	mac_dev->command_config.bits.receive_enable = 1;
+	mac_dev->command_config.bits.software_reset = 1;
+
+	counter = 0;
+	while (mac_dev->command_config.bits.software_reset) {
+		if (counter++ > ALT_TSE_SW_RESET_WATCHDOG_CNTR)
+			break;
+	}
+
+	if (counter >= ALT_TSE_SW_RESET_WATCHDOG_CNTR)
+		debug("TSEMAC SW reset bit never cleared!\n");
+}
+
+static int tse_mdio_read(struct altera_tse_priv *priv, unsigned int regnum)
+{
+	volatile struct alt_tse_mac *mac_dev;
+	unsigned int *mdio_regs;
+	unsigned int data;
+	u16 value;
+
+	mac_dev = priv->mac_dev;
+
+	/* set mdio address */
+	mac_dev->mdio_phy1_addr = priv->phyaddr;
+	mdio_regs = (unsigned int *)&mac_dev->mdio_phy1;
+
+	/* get the data */
+	data = mdio_regs[regnum];
+
+	value = data & 0xffff;
+
+	return value;
+}
+
+static int tse_mdio_write(struct altera_tse_priv *priv, unsigned int regnum,
+		   unsigned int value)
+{
+	volatile struct alt_tse_mac *mac_dev;
+	unsigned int *mdio_regs;
+	unsigned int data;
+
+	mac_dev = priv->mac_dev;
+
+	/* set mdio address */
+	mac_dev->mdio_phy1_addr = priv->phyaddr;
+	mdio_regs = (unsigned int *)&mac_dev->mdio_phy1;
+
+	/* get the data */
+	data = (unsigned int)value;
+
+	mdio_regs[regnum] = data;
+
+	return 0;
+}
+
+/* MDIO access to phy */
+#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) && !defined(BITBANGMII)
+static int altera_tse_miiphy_write(char *devname, unsigned char addr,
+				   unsigned char reg, unsigned short value)
+{
+	struct eth_device *dev;
+	struct altera_tse_priv *priv;
+	dev = eth_get_dev_by_name(devname);
+	priv = dev->priv;
+
+	tse_mdio_write(priv, (uint) reg, (uint) value);
+
+	return 0;
+}
+
+static int altera_tse_miiphy_read(char *devname, unsigned char addr,
+				  unsigned char reg, unsigned short *value)
+{
+	struct eth_device *dev;
+	struct altera_tse_priv *priv;
+	volatile struct alt_tse_mac *mac_dev;
+	unsigned int *mdio_regs;
+
+	dev = eth_get_dev_by_name(devname);
+	priv = dev->priv;
+
+	mac_dev = priv->mac_dev;
+	mac_dev->mdio_phy1_addr = (int)addr;
+	mdio_regs = (unsigned int *)&mac_dev->mdio_phy1;
+
+	*value = 0xffff & mdio_regs[reg];
+
+	return 0;
+
+}
+#endif
+
+/*
+ * Also copied from tsec.c
+ */
+/* Parse the status register for link, and then do
+ * auto-negotiation
+ */
+static uint mii_parse_sr(uint mii_reg, struct altera_tse_priv *priv)
+{
+	/*
+	 * Wait if the link is up, and autonegotiation is in progress
+	 * (ie - we're capable and it's not done)
+	 */
+	mii_reg = tse_mdio_read(priv, MIIM_STATUS);
+
+	if (!(mii_reg & MIIM_STATUS_LINK) && (mii_reg & PHY_BMSR_AUTN_ABLE)
+	    && !(mii_reg & PHY_BMSR_AUTN_COMP)) {
+		int i = 0;
+
+		puts("Waiting for PHY auto negotiation to complete");
+		while (!(mii_reg & PHY_BMSR_AUTN_COMP)) {
+			/*
+			 * Timeout reached ?
+			 */
+			if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
+				puts(" TIMEOUT !\n");
+				priv->link = 0;
+				return 0;
+			}
+
+			if ((i++ % 1000) == 0)
+				putc('.');
+			udelay(1000);	/* 1 ms */
+			mii_reg = tse_mdio_read(priv, MIIM_STATUS);
+		}
+		puts(" done\n");
+		priv->link = 1;
+		udelay(500000);	/* another 500 ms (results in faster booting) */
+	} else {
+		if (mii_reg & MIIM_STATUS_LINK) {
+			debug("Link is up\n");
+			priv->link = 1;
+		} else {
+			debug("Link is down\n");
+			priv->link = 0;
+		}
+	}
+
+	return 0;
+}
+
+/* Parse the 88E1011's status register for speed and duplex
+ * information
+ */
+static uint mii_parse_88E1011_psr(uint mii_reg, struct altera_tse_priv *priv)
+{
+	uint speed;
+
+	mii_reg = tse_mdio_read(priv, MIIM_88E1011_PHY_STATUS);
+
+	if ((mii_reg & MIIM_88E1011_PHYSTAT_LINK) &&
+	    !(mii_reg & MIIM_88E1011_PHYSTAT_SPDDONE)) {
+		int i = 0;
+
+		puts("Waiting for PHY realtime link");
+		while (!(mii_reg & MIIM_88E1011_PHYSTAT_SPDDONE)) {
+			/* Timeout reached ? */
+			if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
+				puts(" TIMEOUT !\n");
+				priv->link = 0;
+				break;
+			}
+
+			if ((i++ == 1000) == 0) {
+				i = 0;
+				puts(".");
+			}
+			udelay(1000);	/* 1 ms */
+			mii_reg = tse_mdio_read(priv, MIIM_88E1011_PHY_STATUS);
+		}
+		puts(" done\n");
+		udelay(500000);	/* another 500 ms (results in faster booting) */
+	} else {
+		if (mii_reg & MIIM_88E1011_PHYSTAT_LINK)
+			priv->link = 1;
+		else
+			priv->link = 0;
+	}
+
+	if (mii_reg & MIIM_88E1011_PHYSTAT_DUPLEX)
+		priv->duplexity = 1;
+	else
+		priv->duplexity = 0;
+
+	speed = (mii_reg & MIIM_88E1011_PHYSTAT_SPEED);
+
+	switch (speed) {
+	case MIIM_88E1011_PHYSTAT_GBIT:
+		priv->speed = 1000;
+		debug("PHY Speed is 1000Mbit\n");
+		break;
+	case MIIM_88E1011_PHYSTAT_100:
+		debug("PHY Speed is 100Mbit\n");
+		priv->speed = 100;
+		break;
+	default:
+		debug("PHY Speed is 10Mbit\n");
+		priv->speed = 10;
+	}
+
+	return 0;
+}
+
+static uint mii_m88e1111s_setmode_sr(uint mii_reg, struct altera_tse_priv *priv)
+{
+	uint mii_data = tse_mdio_read(priv, mii_reg);
+	mii_data &= 0xfff0;
+	mii_data |= 0xb;
+	return mii_data;
+}
+
+static uint mii_m88e1111s_setmode_cr(uint mii_reg, struct altera_tse_priv *priv)
+{
+	uint mii_data = tse_mdio_read(priv, mii_reg);
+	mii_data &= ~0x82;
+	mii_data |= 0x82;
+	return mii_data;
+}
+
+/*
+ * Returns which value to write to the control register.
+ * For 10/100, the value is slightly different
+ */
+static uint mii_cr_init(uint mii_reg, struct altera_tse_priv *priv)
+{
+	return MIIM_CONTROL_INIT;
+}
+
+/*
+ * PHY & MDIO code
+ * Need to add SGMII stuff
+ *
+ */
+
+static struct phy_info phy_info_M88E1111S = {
+	0x01410cc,
+	"Marvell 88E1111S",
+	4,
+	(struct phy_cmd[]){	/* config */
+			   /* Reset and configure the PHY */
+			   {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
+			   {MIIM_88E1111_PHY_EXT_SR, 0x848f,
+			    &mii_m88e1111s_setmode_sr},
+			   /* Delay RGMII TX and RX */
+			   {MIIM_88E1111_PHY_EXT_CR, 0x0cd2,
+			    &mii_m88e1111s_setmode_cr},
+			   {MIIM_GBIT_CONTROL, MIIM_GBIT_CONTROL_INIT, NULL},
+			   {MIIM_ANAR, MIIM_ANAR_INIT, NULL},
+			   {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
+			   {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
+			   {miim_end,}
+			   },
+	(struct phy_cmd[]){	/* startup */
+			   /* Status is read once to clear old link state */
+			   {MIIM_STATUS, miim_read, NULL},
+			   /* Auto-negotiate */
+			   {MIIM_STATUS, miim_read, &mii_parse_sr},
+			   /* Read the status */
+			   {MIIM_88E1011_PHY_STATUS, miim_read,
+			    &mii_parse_88E1011_psr},
+			   {miim_end,}
+			   },
+	(struct phy_cmd[]){	/* shutdown */
+			   {miim_end,}
+			   },
+};
+
+/* a generic flavor.  */
+static struct phy_info phy_info_generic = {
+	0,
+	"Unknown/Generic PHY",
+	32,
+	(struct phy_cmd[]){	/* config */
+			   {PHY_BMCR, PHY_BMCR_RESET, NULL},
+			   {PHY_BMCR, PHY_BMCR_AUTON | PHY_BMCR_RST_NEG, NULL},
+			   {miim_end,}
+			   },
+	(struct phy_cmd[]){	/* startup */
+			   {PHY_BMSR, miim_read, NULL},
+			   {PHY_BMSR, miim_read, &mii_parse_sr},
+			   {miim_end,}
+			   },
+	(struct phy_cmd[]){	/* shutdown */
+			   {miim_end,}
+			   }
+};
+
+static struct phy_info *phy_info[] = {
+	&phy_info_M88E1111S,
+	NULL
+};
+
+ /* Grab the identifier of the device's PHY, and search through
+  * all of the known PHYs to see if one matches.	 If so, return
+  * it, if not, return NULL
+  */
+static struct phy_info *get_phy_info(struct eth_device *dev)
+{
+	struct altera_tse_priv *priv = (struct altera_tse_priv *)dev->priv;
+	uint phy_reg, phy_ID;
+	int i;
+	struct phy_info *theInfo = NULL;
+
+	/* Grab the bits from PHYIR1, and put them in the upper half */
+	phy_reg = tse_mdio_read(priv, MIIM_PHYIR1);
+	phy_ID = (phy_reg & 0xffff) << 16;
+
+	/* Grab the bits from PHYIR2, and put them in the lower half */
+	phy_reg = tse_mdio_read(priv, MIIM_PHYIR2);
+	phy_ID |= (phy_reg & 0xffff);
+
+	/* loop through all the known PHY types, and find one that */
+	/* matches the ID we read from the PHY. */
+	for (i = 0; phy_info[i]; i++) {
+		if (phy_info[i]->id == (phy_ID >> phy_info[i]->shift)) {
+			theInfo = phy_info[i];
+			break;
+		}
+	}
+
+	if (theInfo == NULL) {
+		theInfo = &phy_info_generic;
+		debug("%s: No support for PHY id %x; assuming generic\n",
+		      dev->name, phy_ID);
+	} else
+		debug("%s: PHY is %s (%x)\n", dev->name, theInfo->name, phy_ID);
+
+	return theInfo;
+}
+
+/* Execute the given series of commands on the given device's
+ * PHY, running functions as necessary
+ */
+static void phy_run_commands(struct altera_tse_priv *priv, struct phy_cmd *cmd)
+{
+	int i;
+	uint result;
+
+	for (i = 0; cmd->mii_reg != miim_end; i++) {
+		if (cmd->mii_data == miim_read) {
+			result = tse_mdio_read(priv, cmd->mii_reg);
+
+			if (cmd->funct != NULL)
+				(*(cmd->funct)) (result, priv);
+
+		} else {
+			if (cmd->funct != NULL)
+				result = (*(cmd->funct)) (cmd->mii_reg, priv);
+			else
+				result = cmd->mii_data;
+
+			tse_mdio_write(priv, cmd->mii_reg, result);
+
+		}
+		cmd++;
+	}
+}
+
+/* Phy init code */
+static int init_phy(struct eth_device *dev)
+{
+	struct altera_tse_priv *priv = (struct altera_tse_priv *)dev->priv;
+	struct phy_info *curphy;
+
+	/* Get the cmd structure corresponding to the attached
+	 * PHY */
+	curphy = get_phy_info(dev);
+
+	if (curphy == NULL) {
+		priv->phyinfo = NULL;
+		debug("%s: No PHY found\n", dev->name);
+
+		return 0;
+	} else
+		debug("%s found\n", curphy->name);
+	priv->phyinfo = curphy;
+
+	phy_run_commands(priv, priv->phyinfo->config);
+
+	return 1;
+}
+
+static int tse_eth_init(struct eth_device *dev, bd_t * bd)
+{
+	int dat;
+	struct altera_tse_priv *priv = dev->priv;
+	volatile struct alt_tse_mac *mac_dev = priv->mac_dev;
+	volatile struct alt_sgdma_descriptor *tx_desc = priv->tx_desc;
+	volatile struct alt_sgdma_descriptor *rx_desc = priv->rx_desc;
+	volatile struct alt_sgdma_descriptor *rx_desc_cur =
+	    (volatile struct alt_sgdma_descriptor *)&rx_desc[0];
+
+	/* stop controller */
+	debug("Reseting TSE & SGDMAs\n");
+	tse_eth_reset(dev);
+
+	/* start the phy */
+	debug("Configuring PHY\n");
+	phy_run_commands(priv, priv->phyinfo->startup);
+
+	/* need to create sgdma */
+	debug("Configuring tx desc\n");
+	alt_sgdma_construct_descriptor_burst(
+		(volatile struct alt_sgdma_descriptor *)&tx_desc[0],
+		(volatile struct alt_sgdma_descriptor *)&tx_desc[1],
+		(unsigned int *)NULL,	/* read addr */
+		(unsigned int *)0,
+		0,	/* length or EOP ,will change for each tx */
+		0x1,	/* gen eop */
+		0x0,	/* read fixed */
+		0x1,	/* write fixed or sop */
+		0x0,	/* read burst */
+		0x0,	/* write burst */
+		0x0	/* channel */
+		);
+	debug("Configuring rx desc\n");
+	flush_dcache((unsigned long)(NetRxPackets[0]), PKTSIZE_ALIGN);
+	alt_sgdma_construct_descriptor_burst(
+		(volatile struct alt_sgdma_descriptor *)&rx_desc[0],
+		(volatile struct alt_sgdma_descriptor *)&rx_desc[1],
+		(unsigned int)0x0,	/* read addr */
+		(unsigned int *)NetRxPackets[0],
+		0x0,	/* length or EOP */
+		0x0,	/* gen eop */
+		0x0,	/* read fixed */
+		0x0,	/* write fixed or sop */
+		0x0,	/* read burst */
+		0x0,	/* write burst */
+		0x0	/* channel */
+		);
+	/* start rx async transfer */
+	debug("Starting rx sgdma\n");
+	alt_sgdma_do_async_transfer(priv->sgdma_rx, rx_desc_cur);
+
+	/* start TSE */
+	debug("Configuring TSE Mac\n");
+	/* Initialize MAC registers */
+	mac_dev->max_frame_length = PKTSIZE_ALIGN;
+	mac_dev->rx_almost_empty_threshold = 8;
+	mac_dev->rx_almost_full_threshold = 8;
+	mac_dev->tx_almost_empty_threshold = 8;
+	mac_dev->tx_almost_full_threshold = 3;
+	mac_dev->tx_sel_empty_threshold =
+	    CONFIG_SYS_ALTERA_TSE_TX_FIFO - 16;
+	mac_dev->tx_sel_full_threshold = 0;
+	mac_dev->rx_sel_empty_threshold =
+	    CONFIG_SYS_ALTERA_TSE_TX_FIFO - 16;
+	mac_dev->rx_sel_full_threshold = 0;
+
+	/* NO Shift */
+	mac_dev->rx_cmd_stat.bits.rx_shift16 = 0;
+	mac_dev->tx_cmd_stat.bits.tx_shift16 = 0;
+
+	/* enable MAC */
+	dat = 0;
+	dat = ALTERA_TSE_CMD_TX_ENA_MSK | ALTERA_TSE_CMD_RX_ENA_MSK;
+
+	mac_dev->command_config.image = dat;
+
+	/* Set the MAC address */
+	debug("Setting MAC address to 0x%x%x%x%x%x%x\n",
+	      dev->enetaddr[5], dev->enetaddr[4],
+	      dev->enetaddr[3], dev->enetaddr[2],
+	      dev->enetaddr[1], dev->enetaddr[0]);
+	mac_dev->mac_addr_0 = ((dev->enetaddr[3]) << 24 |
+			       (dev->enetaddr[2]) << 16 |
+			       (dev->enetaddr[1]) << 8 | (dev->enetaddr[0]));
+
+	mac_dev->mac_addr_1 = ((dev->enetaddr[5] << 8 |
+				(dev->enetaddr[4])) & 0xFFFF);
+
+	/* Set the MAC address */
+	mac_dev->supp_mac_addr_0_0 = mac_dev->mac_addr_0;
+	mac_dev->supp_mac_addr_0_1 = mac_dev->mac_addr_1;
+
+	/* Set the MAC address */
+	mac_dev->supp_mac_addr_1_0 = mac_dev->mac_addr_0;
+	mac_dev->supp_mac_addr_1_1 = mac_dev->mac_addr_1;
+
+	/* Set the MAC address */
+	mac_dev->supp_mac_addr_2_0 = mac_dev->mac_addr_0;
+	mac_dev->supp_mac_addr_2_1 = mac_dev->mac_addr_1;
+
+	/* Set the MAC address */
+	mac_dev->supp_mac_addr_3_0 = mac_dev->mac_addr_0;
+	mac_dev->supp_mac_addr_3_1 = mac_dev->mac_addr_1;
+
+	/* configure the TSE core  */
+	/*  -- output clocks,  */
+	/*  -- and later config stuff for SGMII */
+	if (priv->link) {
+		debug("Adjusting TSE to link speed\n");
+		tse_adjust_link(priv);
+	}
+
+	return priv->link ? 0 : -1;
+}
+
+/* TSE init code */
+int altera_tse_initialize(u8 dev_num, int mac_base,
+			  int sgdma_rx_base, int sgdma_tx_base)
+{
+	struct altera_tse_priv *priv;
+	struct eth_device *dev;
+	struct alt_sgdma_descriptor *rx_desc;
+	struct alt_sgdma_descriptor *tx_desc;
+	unsigned long dma_handle;
+
+	dev = (struct eth_device *)malloc(sizeof *dev);
+
+	if (NULL == dev)
+		return 0;
+
+	memset(dev, 0, sizeof *dev);
+
+	priv = malloc(sizeof(*priv));
+
+	if (!priv) {
+		free(dev);
+		return 0;
+	}
+	tx_desc = dma_alloc_coherent(sizeof(*tx_desc) * (3 + PKTBUFSRX),
+				     &dma_handle);
+	rx_desc = tx_desc + 2;
+	debug("tx desc: address = 0x%x\n", (unsigned int)tx_desc);
+	debug("rx desc: address = 0x%x\n", (unsigned int)rx_desc);
+
+	if (!tx_desc) {
+		free(priv);
+		free(dev);
+		return 0;
+	}
+	memset(rx_desc, 0, (sizeof *rx_desc) * (PKTBUFSRX + 1));
+	memset(tx_desc, 0, (sizeof *tx_desc) * 2);
+
+	/* initialize tse priv */
+	priv->mac_dev = (volatile struct alt_tse_mac *)mac_base;
+	priv->sgdma_rx = (volatile struct alt_sgdma_registers *)sgdma_rx_base;
+	priv->sgdma_tx = (volatile struct alt_sgdma_registers *)sgdma_tx_base;
+	priv->phyaddr = CONFIG_SYS_ALTERA_TSE_PHY_ADDR;
+	priv->flags = CONFIG_SYS_ALTERA_TSE_FLAGS;
+	priv->rx_desc = rx_desc;
+	priv->tx_desc = tx_desc;
+
+	/* init eth structure */
+	dev->priv = priv;
+	dev->init = tse_eth_init;
+	dev->halt = tse_eth_halt;
+	dev->send = tse_eth_send;
+	dev->recv = tse_eth_rx;
+	sprintf(dev->name, "%s-%hu", "ALTERA_TSE", dev_num);
+
+	eth_register(dev);
+
+#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) && !defined(BITBANGMII)
+	miiphy_register(dev->name, altera_tse_miiphy_read,
+			altera_tse_miiphy_write);
+#endif
+
+	init_phy(dev);
+
+	return 1;
+}