#include <asm/io.h>
#include "designware.h"
-static int configure_phy(struct eth_device *dev);
+#if !defined(CONFIG_PHYLIB)
+# error "DesignWare Ether MAC requires PHYLIB - missing CONFIG_PHYLIB"
+#endif
+
+static int dw_mdio_read(struct mii_dev *bus, int addr, int devad, int reg)
+{
+ struct eth_mac_regs *mac_p = bus->priv;
+ ulong start;
+ u16 miiaddr;
+ int timeout = CONFIG_MDIO_TIMEOUT;
+
+ miiaddr = ((addr << MIIADDRSHIFT) & MII_ADDRMSK) |
+ ((reg << MIIREGSHIFT) & MII_REGMSK);
+
+ writel(miiaddr | MII_CLKRANGE_150_250M | MII_BUSY, &mac_p->miiaddr);
+
+ start = get_timer(0);
+ while (get_timer(start) < timeout) {
+ if (!(readl(&mac_p->miiaddr) & MII_BUSY))
+ return readl(&mac_p->miidata);
+ udelay(10);
+ };
+
+ return -1;
+}
+
+static int dw_mdio_write(struct mii_dev *bus, int addr, int devad, int reg,
+ u16 val)
+{
+ struct eth_mac_regs *mac_p = bus->priv;
+ ulong start;
+ u16 miiaddr;
+ int ret = -1, timeout = CONFIG_MDIO_TIMEOUT;
+
+ writel(val, &mac_p->miidata);
+ miiaddr = ((addr << MIIADDRSHIFT) & MII_ADDRMSK) |
+ ((reg << MIIREGSHIFT) & MII_REGMSK) | MII_WRITE;
+
+ writel(miiaddr | MII_CLKRANGE_150_250M | MII_BUSY, &mac_p->miiaddr);
+
+ start = get_timer(0);
+ while (get_timer(start) < timeout) {
+ if (!(readl(&mac_p->miiaddr) & MII_BUSY)) {
+ ret = 0;
+ break;
+ }
+ udelay(10);
+ };
+
+ return ret;
+}
+
+static int dw_mdio_init(char *name, struct eth_mac_regs *mac_regs_p)
+{
+ struct mii_dev *bus = mdio_alloc();
+
+ if (!bus) {
+ printf("Failed to allocate MDIO bus\n");
+ return -1;
+ }
+
+ bus->read = dw_mdio_read;
+ bus->write = dw_mdio_write;
+ sprintf(bus->name, name);
+
+ bus->priv = (void *)mac_regs_p;
+
+ return mdio_register(bus);
+}
static void tx_descs_init(struct eth_device *dev)
{
priv->rx_currdescnum = 0;
}
-static void descs_init(struct eth_device *dev)
+static int dw_write_hwaddr(struct eth_device *dev)
{
- tx_descs_init(dev);
- rx_descs_init(dev);
+ struct dw_eth_dev *priv = dev->priv;
+ struct eth_mac_regs *mac_p = priv->mac_regs_p;
+ u32 macid_lo, macid_hi;
+ u8 *mac_id = &dev->enetaddr[0];
+
+ macid_lo = mac_id[0] + (mac_id[1] << 8) + (mac_id[2] << 16) +
+ (mac_id[3] << 24);
+ macid_hi = mac_id[4] + (mac_id[5] << 8);
+
+ writel(macid_hi, &mac_p->macaddr0hi);
+ writel(macid_lo, &mac_p->macaddr0lo);
+
+ return 0;
}
-static int mac_reset(struct eth_device *dev)
+static void dw_adjust_link(struct eth_mac_regs *mac_p,
+ struct phy_device *phydev)
{
- struct dw_eth_dev *priv = dev->priv;
- struct eth_mac_regs *mac_p = priv->mac_regs_p;
- struct eth_dma_regs *dma_p = priv->dma_regs_p;
+ u32 conf = readl(&mac_p->conf) | FRAMEBURSTENABLE | DISABLERXOWN;
- ulong start;
- int timeout = CONFIG_MACRESET_TIMEOUT;
+ if (!phydev->link) {
+ printf("%s: No link.\n", phydev->dev->name);
+ return;
+ }
- writel(readl(&dma_p->busmode) | DMAMAC_SRST, &dma_p->busmode);
+ if (phydev->speed != 1000)
+ conf |= MII_PORTSELECT;
- if (priv->interface != PHY_INTERFACE_MODE_RGMII)
- writel(MII_PORTSELECT, &mac_p->conf);
+ if (phydev->speed == 100)
+ conf |= FES_100;
- start = get_timer(0);
- while (get_timer(start) < timeout) {
- if (!(readl(&dma_p->busmode) & DMAMAC_SRST))
- return 0;
+ if (phydev->duplex)
+ conf |= FULLDPLXMODE;
- /* Try again after 10usec */
- udelay(10);
- };
+ writel(conf, &mac_p->conf);
- return -1;
+ printf("Speed: %d, %s duplex%s\n", phydev->speed,
+ (phydev->duplex) ? "full" : "half",
+ (phydev->port == PORT_FIBRE) ? ", fiber mode" : "");
}
-static int dw_write_hwaddr(struct eth_device *dev)
+static void dw_eth_halt(struct eth_device *dev)
{
struct dw_eth_dev *priv = dev->priv;
struct eth_mac_regs *mac_p = priv->mac_regs_p;
- u32 macid_lo, macid_hi;
- u8 *mac_id = &dev->enetaddr[0];
+ struct eth_dma_regs *dma_p = priv->dma_regs_p;
- macid_lo = mac_id[0] + (mac_id[1] << 8) + \
- (mac_id[2] << 16) + (mac_id[3] << 24);
- macid_hi = mac_id[4] + (mac_id[5] << 8);
+ writel(readl(&mac_p->conf) & ~(RXENABLE | TXENABLE), &mac_p->conf);
+ writel(readl(&dma_p->opmode) & ~(RXSTART | TXSTART), &dma_p->opmode);
- writel(macid_hi, &mac_p->macaddr0hi);
- writel(macid_lo, &mac_p->macaddr0lo);
-
- return 0;
+ phy_shutdown(priv->phydev);
}
static int dw_eth_init(struct eth_device *dev, bd_t *bis)
struct dw_eth_dev *priv = dev->priv;
struct eth_mac_regs *mac_p = priv->mac_regs_p;
struct eth_dma_regs *dma_p = priv->dma_regs_p;
- u32 conf;
+ unsigned int start;
- if (priv->phy_configured != 1)
- configure_phy(dev);
+ writel(readl(&dma_p->busmode) | DMAMAC_SRST, &dma_p->busmode);
- /* Print link status only once */
- if (!priv->link_printed) {
- printf("ENET Speed is %d Mbps - %s duplex connection\n",
- priv->speed, (priv->duplex == HALF) ? "HALF" : "FULL");
- priv->link_printed = 1;
- }
+ start = get_timer(0);
+ while (readl(&dma_p->busmode) & DMAMAC_SRST) {
+ if (get_timer(start) >= CONFIG_MACRESET_TIMEOUT)
+ return -1;
- /* Reset ethernet hardware */
- if (mac_reset(dev) < 0)
- return -1;
+ mdelay(100);
+ };
- /* Resore the HW MAC address as it has been lost during MAC reset */
+ /* Soft reset above clears HW address registers.
+ * So we have to set it here once again */
dw_write_hwaddr(dev);
- writel(FIXEDBURST | PRIORXTX_41 | BURST_16,
- &dma_p->busmode);
-
- writel(readl(&dma_p->opmode) | FLUSHTXFIFO | STOREFORWARD |
- TXSECONDFRAME, &dma_p->opmode);
+ rx_descs_init(dev);
+ tx_descs_init(dev);
- conf = FRAMEBURSTENABLE | DISABLERXOWN;
+ writel(FIXEDBURST | PRIORXTX_41 | BURST_16, &dma_p->busmode);
- if (priv->speed != 1000)
- conf |= MII_PORTSELECT;
+ writel(readl(&dma_p->opmode) | FLUSHTXFIFO | STOREFORWARD,
+ &dma_p->opmode);
- if ((priv->interface != PHY_INTERFACE_MODE_MII) &&
- (priv->interface != PHY_INTERFACE_MODE_GMII)) {
+ writel(readl(&dma_p->opmode) | RXSTART | TXSTART, &dma_p->opmode);
- if (priv->speed == 100)
- conf |= FES_100;
+ /* Start up the PHY */
+ if (phy_startup(priv->phydev)) {
+ printf("Could not initialize PHY %s\n",
+ priv->phydev->dev->name);
+ return -1;
}
- if (priv->duplex == FULL)
- conf |= FULLDPLXMODE;
-
- writel(conf, &mac_p->conf);
+ dw_adjust_link(mac_p, priv->phydev);
- descs_init(dev);
-
- /*
- * Start/Enable xfer at dma as well as mac level
- */
- writel(readl(&dma_p->opmode) | RXSTART, &dma_p->opmode);
- writel(readl(&dma_p->opmode) | TXSTART, &dma_p->opmode);
+ if (!priv->phydev->link)
+ return -1;
writel(readl(&mac_p->conf) | RXENABLE | TXENABLE, &mac_p->conf);
return length;
}
-static void dw_eth_halt(struct eth_device *dev)
-{
- struct dw_eth_dev *priv = dev->priv;
-
- mac_reset(dev);
- priv->tx_currdescnum = priv->rx_currdescnum = 0;
-}
-
-static int eth_mdio_read(struct eth_device *dev, u8 addr, u8 reg, u16 *val)
+static int dw_phy_init(struct eth_device *dev)
{
struct dw_eth_dev *priv = dev->priv;
- struct eth_mac_regs *mac_p = priv->mac_regs_p;
- ulong start;
- u32 miiaddr;
- int timeout = CONFIG_MDIO_TIMEOUT;
-
- miiaddr = ((addr << MIIADDRSHIFT) & MII_ADDRMSK) | \
- ((reg << MIIREGSHIFT) & MII_REGMSK);
-
- writel(miiaddr | MII_CLKRANGE_150_250M | MII_BUSY, &mac_p->miiaddr);
-
- start = get_timer(0);
- while (get_timer(start) < timeout) {
- if (!(readl(&mac_p->miiaddr) & MII_BUSY)) {
- *val = readl(&mac_p->miidata);
- return 0;
- }
+ struct phy_device *phydev;
+ int mask = 0xffffffff;
- /* Try again after 10usec */
- udelay(10);
- };
-
- return -1;
-}
-
-static int eth_mdio_write(struct eth_device *dev, u8 addr, u8 reg, u16 val)
-{
- struct dw_eth_dev *priv = dev->priv;
- struct eth_mac_regs *mac_p = priv->mac_regs_p;
- ulong start;
- u32 miiaddr;
- int ret = -1, timeout = CONFIG_MDIO_TIMEOUT;
- u16 value;
-
- writel(val, &mac_p->miidata);
- miiaddr = ((addr << MIIADDRSHIFT) & MII_ADDRMSK) | \
- ((reg << MIIREGSHIFT) & MII_REGMSK) | MII_WRITE;
-
- writel(miiaddr | MII_CLKRANGE_150_250M | MII_BUSY, &mac_p->miiaddr);
-
- start = get_timer(0);
- while (get_timer(start) < timeout) {
- if (!(readl(&mac_p->miiaddr) & MII_BUSY)) {
- ret = 0;
- break;
- }
-
- /* Try again after 10usec */
- udelay(10);
- };
-
- /* Needed as a fix for ST-Phy */
- eth_mdio_read(dev, addr, reg, &value);
-
- return ret;
-}
-
-#if defined(CONFIG_DW_SEARCH_PHY)
-static int find_phy(struct eth_device *dev)
-{
- int phy_addr = 0;
- u16 ctrl, oldctrl;
-
- do {
- eth_mdio_read(dev, phy_addr, MII_BMCR, &ctrl);
- oldctrl = ctrl & BMCR_ANENABLE;
-
- ctrl ^= BMCR_ANENABLE;
- eth_mdio_write(dev, phy_addr, MII_BMCR, ctrl);
- eth_mdio_read(dev, phy_addr, MII_BMCR, &ctrl);
- ctrl &= BMCR_ANENABLE;
-
- if (ctrl == oldctrl) {
- phy_addr++;
- } else {
- ctrl ^= BMCR_ANENABLE;
- eth_mdio_write(dev, phy_addr, MII_BMCR, ctrl);
-
- return phy_addr;
- }
- } while (phy_addr < 32);
-
- return -1;
-}
+#ifdef CONFIG_PHY_ADDR
+ mask = 1 << CONFIG_PHY_ADDR;
#endif
-static int dw_reset_phy(struct eth_device *dev)
-{
- struct dw_eth_dev *priv = dev->priv;
- u16 ctrl;
- ulong start;
- int timeout = CONFIG_PHYRESET_TIMEOUT;
- u32 phy_addr = priv->address;
-
- eth_mdio_write(dev, phy_addr, MII_BMCR, BMCR_RESET);
-
- start = get_timer(0);
- while (get_timer(start) < timeout) {
- eth_mdio_read(dev, phy_addr, MII_BMCR, &ctrl);
- if (!(ctrl & BMCR_RESET))
- break;
-
- /* Try again after 10usec */
- udelay(10);
- };
-
- if (get_timer(start) >= CONFIG_PHYRESET_TIMEOUT)
+ phydev = phy_find_by_mask(priv->bus, mask, priv->interface);
+ if (!phydev)
return -1;
-#ifdef CONFIG_PHY_RESET_DELAY
- udelay(CONFIG_PHY_RESET_DELAY);
-#endif
- return 0;
-}
+ phydev->supported &= PHY_GBIT_FEATURES;
+ phydev->advertising = phydev->supported;
-/*
- * Add weak default function for board specific PHY configuration
- */
-int __weak designware_board_phy_init(struct eth_device *dev, int phy_addr,
- int (*mii_write)(struct eth_device *, u8, u8, u16),
- int dw_reset_phy(struct eth_device *))
-{
- return 0;
-}
+ priv->phydev = phydev;
+ phy_config(phydev);
-static int configure_phy(struct eth_device *dev)
-{
- struct dw_eth_dev *priv = dev->priv;
- int phy_addr;
- u16 bmcr;
-#if defined(CONFIG_DW_AUTONEG)
- u16 bmsr;
- u32 timeout;
- ulong start;
-#endif
-
-#if defined(CONFIG_DW_SEARCH_PHY)
- phy_addr = find_phy(dev);
- if (phy_addr >= 0)
- priv->address = phy_addr;
- else
- return -1;
-#else
- phy_addr = priv->address;
-#endif
-
- /*
- * Some boards need board specific PHY initialization. This is
- * after the main driver init code but before the auto negotiation
- * is run.
- */
- if (designware_board_phy_init(dev, phy_addr,
- eth_mdio_write, dw_reset_phy) < 0)
- return -1;
-
- if (dw_reset_phy(dev) < 0)
- return -1;
-
-#if defined(CONFIG_DW_AUTONEG)
- /* Set Auto-Neg Advertisement capabilities to 10/100 half/full */
- eth_mdio_write(dev, phy_addr, MII_ADVERTISE, 0x1E1);
-
- bmcr = BMCR_ANENABLE | BMCR_ANRESTART;
-#else
- bmcr = BMCR_SPEED100 | BMCR_FULLDPLX;
-
-#if defined(CONFIG_DW_SPEED10M)
- bmcr &= ~BMCR_SPEED100;
-#endif
-#if defined(CONFIG_DW_DUPLEXHALF)
- bmcr &= ~BMCR_FULLDPLX;
-#endif
-#endif
- if (eth_mdio_write(dev, phy_addr, MII_BMCR, bmcr) < 0)
- return -1;
-
- /* Read the phy status register and populate priv structure */
-#if defined(CONFIG_DW_AUTONEG)
- timeout = CONFIG_AUTONEG_TIMEOUT;
- start = get_timer(0);
- puts("Waiting for PHY auto negotiation to complete");
- while (get_timer(start) < timeout) {
- eth_mdio_read(dev, phy_addr, MII_BMSR, &bmsr);
- if (bmsr & BMSR_ANEGCOMPLETE) {
- priv->phy_configured = 1;
- break;
- }
-
- /* Print dot all 1s to show progress */
- if ((get_timer(start) % 1000) == 0)
- putc('.');
-
- /* Try again after 1msec */
- udelay(1000);
- };
-
- if (!(bmsr & BMSR_ANEGCOMPLETE))
- puts(" TIMEOUT!\n");
- else
- puts(" done\n");
-#else
- priv->phy_configured = 1;
-#endif
-
- priv->speed = miiphy_speed(dev->name, phy_addr);
- priv->duplex = miiphy_duplex(dev->name, phy_addr);
-
- return 0;
-}
-
-#if defined(CONFIG_MII)
-static int dw_mii_read(const char *devname, u8 addr, u8 reg, u16 *val)
-{
- struct eth_device *dev;
-
- dev = eth_get_dev_by_name(devname);
- if (dev)
- eth_mdio_read(dev, addr, reg, val);
-
- return 0;
-}
-
-static int dw_mii_write(const char *devname, u8 addr, u8 reg, u16 val)
-{
- struct eth_device *dev;
-
- dev = eth_get_dev_by_name(devname);
- if (dev)
- eth_mdio_write(dev, addr, reg, val);
-
- return 0;
+ return 1;
}
-#endif
-int designware_initialize(u32 id, ulong base_addr, u32 phy_addr, u32 interface)
+int designware_initialize(ulong base_addr, u32 interface)
{
struct eth_device *dev;
struct dw_eth_dev *priv;
memset(dev, 0, sizeof(struct eth_device));
memset(priv, 0, sizeof(struct dw_eth_dev));
- sprintf(dev->name, "mii%d", id);
+ sprintf(dev->name, "dwmac.%lx", base_addr);
dev->iobase = (int)base_addr;
dev->priv = priv;
- eth_getenv_enetaddr_by_index("eth", id, &dev->enetaddr[0]);
-
priv->dev = dev;
priv->mac_regs_p = (struct eth_mac_regs *)base_addr;
priv->dma_regs_p = (struct eth_dma_regs *)(base_addr +
DW_DMA_BASE_OFFSET);
- priv->address = phy_addr;
- priv->phy_configured = 0;
- priv->interface = interface;
dev->init = dw_eth_init;
dev->send = dw_eth_send;
eth_register(dev);
-#if defined(CONFIG_MII)
- miiphy_register(dev->name, dw_mii_read, dw_mii_write);
-#endif
- return 1;
+ priv->interface = interface;
+
+ dw_mdio_init(dev->name, priv->mac_regs_p);
+ priv->bus = miiphy_get_dev_by_name(dev->name);
+
+ return dw_phy_init(dev);
}
projects / karo-tx-uboot.git / blobdiff