--- /dev/null
+/*
+ * 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 the RUN bit in the control register. This is needed
+ * to restart the SGDMA engine later on.
+ */
+ dev->control = 0;
+
+ /*
+ * 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, 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_range((unsigned long)packet,
+ (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_range((unsigned long)(NetRxPackets[0]),
+ (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 packet_length;
+ }
+
+ 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(const 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(const 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 & BMSR_ANEGCAPABLE)
+ && !(mii_reg & BMSR_ANEGCOMPLETE)) {
+ int i = 0;
+
+ puts("Waiting for PHY auto negotiation to complete");
+ while (!(mii_reg & BMSR_ANEGCOMPLETE)) {
+ /*
+ * 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;
+ if ((priv->flags >= 1) && (priv->flags <= 4))
+ mii_data |= 0xb;
+ else if (priv->flags == 5)
+ mii_data |= 0x4;
+
+ 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;
+ if ((priv->flags >= 1) && (priv->flags <= 4))
+ 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 */
+ {MII_BMCR, BMCR_RESET, NULL},
+ {MII_BMCR, BMCR_ANENABLE | BMCR_ANRESTART, NULL},
+ {miim_end,}
+ },
+ (struct phy_cmd[]){ /* startup */
+ {MII_BMSR, miim_read, NULL},
+ {MII_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_set_mac_address(struct eth_device *dev)
+{
+ struct altera_tse_priv *priv = dev->priv;
+ volatile struct alt_tse_mac *mac_dev = priv->mac_dev;
+
+ debug("Setting MAC address to 0x%02x%02x%02x%02x%02x%02x\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;
+ return 0;
+}
+
+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_range((unsigned long)(NetRxPackets[0]),
+ (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;
+
+ /* 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,
+ u32 sgdma_desc_base, u32 sgdma_desc_size)
+{
+ 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;
+ }
+ if (sgdma_desc_size) {
+ if (sgdma_desc_size < (sizeof(*tx_desc) * (3 + PKTBUFSRX))) {
+ printf("ALTERA_TSE-%hu: "
+ "descriptor memory is too small\n", dev_num);
+ free(priv);
+ free(dev);
+ return 0;
+ }
+ tx_desc = (struct alt_sgdma_descriptor *)sgdma_desc_base;
+ } else {
+ 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;
+ dev->write_hwaddr = tse_set_mac_address;
+ 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;
+}
Code Review / kvmfornfv.git / blobdiff