X-Git-Url: http://bbs.cooldavid.org/git/?a=blobdiff_plain;f=drivers%2Fnet%2Fstmmac%2Fstmmac_main.c;h=b806cd3515b43f36c7cfd84bef45926bb32b6e40;hb=293bb1c41b728d4aa248fe8a0acd2b9066ff5c34;hp=823b9e6431d5f29a3b23a45be8bdbda962a61565;hpb=3a99c6319064af3f2e18eb929f638d555dbf7a62;p=net-next-2.6.git

diff --git a/drivers/net/stmmac/stmmac_main.c b/drivers/net/stmmac/stmmac_main.c
index 823b9e6431d..b806cd3515b 100644
--- a/drivers/net/stmmac/stmmac_main.c
+++ b/drivers/net/stmmac/stmmac_main.c
@@ -186,6 +186,18 @@ static inline u32 stmmac_tx_avail(struct stmmac_priv *priv)
 	return priv->dirty_tx + priv->dma_tx_size - priv->cur_tx - 1;
 }
 
+/* On some ST platforms, some HW system configuraton registers have to be
+ * set according to the link speed negotiated.
+ */
+static inline void stmmac_hw_fix_mac_speed(struct stmmac_priv *priv)
+{
+	struct phy_device *phydev = priv->phydev;
+
+	if (likely(priv->plat->fix_mac_speed))
+		priv->plat->fix_mac_speed(priv->plat->bsp_priv,
+					  phydev->speed);
+}
+
 /**
  * stmmac_adjust_link
  * @dev: net device structure
@@ -228,15 +240,13 @@ static void stmmac_adjust_link(struct net_device *dev)
 			new_state = 1;
 			switch (phydev->speed) {
 			case 1000:
-				if (likely(priv->is_gmac))
+				if (likely(priv->plat->has_gmac))
 					ctrl &= ~priv->hw->link.port;
-				if (likely(priv->fix_mac_speed))
-					priv->fix_mac_speed(priv->bsp_priv,
-							    phydev->speed);
+				stmmac_hw_fix_mac_speed(priv);
 				break;
 			case 100:
 			case 10:
-				if (priv->is_gmac) {
+				if (priv->plat->has_gmac) {
 					ctrl |= priv->hw->link.port;
 					if (phydev->speed == SPEED_100) {
 						ctrl |= priv->hw->link.speed;
@@ -246,9 +256,7 @@ static void stmmac_adjust_link(struct net_device *dev)
 				} else {
 					ctrl &= ~priv->hw->link.port;
 				}
-				if (likely(priv->fix_mac_speed))
-					priv->fix_mac_speed(priv->bsp_priv,
-							    phydev->speed);
+				stmmac_hw_fix_mac_speed(priv);
 				break;
 			default:
 				if (netif_msg_link(priv))
@@ -305,7 +313,7 @@ static int stmmac_init_phy(struct net_device *dev)
 		return 0;
 	}
 
-	snprintf(bus_id, MII_BUS_ID_SIZE, "%x", priv->bus_id);
+	snprintf(bus_id, MII_BUS_ID_SIZE, "%x", priv->plat->bus_id);
 	snprintf(phy_id, MII_BUS_ID_SIZE + 3, PHY_ID_FMT, bus_id,
 		 priv->phy_addr);
 	pr_debug("stmmac_init_phy:  trying to attach to %s\n", phy_id);
@@ -337,33 +345,19 @@ static int stmmac_init_phy(struct net_device *dev)
 	return 0;
 }
 
-static inline void stmmac_mac_enable_rx(void __iomem *ioaddr)
+static inline void stmmac_enable_mac(void __iomem *ioaddr)
 {
 	u32 value = readl(ioaddr + MAC_CTRL_REG);
-	value |= MAC_RNABLE_RX;
-	/* Set the RE (receive enable bit into the MAC CTRL register).  */
-	writel(value, ioaddr + MAC_CTRL_REG);
-}
 
-static inline void stmmac_mac_enable_tx(void __iomem *ioaddr)
-{
-	u32 value = readl(ioaddr + MAC_CTRL_REG);
-	value |= MAC_ENABLE_TX;
-	/* Set the TE (transmit enable bit into the MAC CTRL register).  */
+	value |= MAC_RNABLE_RX | MAC_ENABLE_TX;
 	writel(value, ioaddr + MAC_CTRL_REG);
 }
 
-static inline void stmmac_mac_disable_rx(void __iomem *ioaddr)
+static inline void stmmac_disable_mac(void __iomem *ioaddr)
 {
 	u32 value = readl(ioaddr + MAC_CTRL_REG);
-	value &= ~MAC_RNABLE_RX;
-	writel(value, ioaddr + MAC_CTRL_REG);
-}
 
-static inline void stmmac_mac_disable_tx(void __iomem *ioaddr)
-{
-	u32 value = readl(ioaddr + MAC_CTRL_REG);
-	value &= ~MAC_ENABLE_TX;
+	value &= ~(MAC_ENABLE_TX | MAC_RNABLE_RX);
 	writel(value, ioaddr + MAC_CTRL_REG);
 }
 
@@ -566,7 +560,7 @@ static void free_dma_desc_resources(struct stmmac_priv *priv)
  */
 static void stmmac_dma_operation_mode(struct stmmac_priv *priv)
 {
-	if (likely((priv->tx_coe) && (!priv->no_csum_insertion))) {
+	if (likely((priv->plat->tx_coe) && (!priv->no_csum_insertion))) {
 		/* In case of GMAC, SF mode has to be enabled
 		 * to perform the TX COE. This depends on:
 		 * 1) TX COE if actually supported
@@ -828,7 +822,7 @@ static int stmmac_open(struct net_device *dev)
 	init_dma_desc_rings(dev);
 
 	/* DMA initialization and SW reset */
-	if (unlikely(priv->hw->dma->init(priv->ioaddr, priv->pbl,
+	if (unlikely(priv->hw->dma->init(priv->ioaddr, priv->plat->pbl,
 					 priv->dma_tx_phy,
 					 priv->dma_rx_phy) < 0)) {
 
@@ -839,15 +833,15 @@ static int stmmac_open(struct net_device *dev)
 	/* Copy the MAC addr into the HW  */
 	priv->hw->mac->set_umac_addr(priv->ioaddr, dev->dev_addr, 0);
 	/* If required, perform hw setup of the bus. */
-	if (priv->bus_setup)
-		priv->bus_setup(priv->ioaddr);
+	if (priv->plat->bus_setup)
+		priv->plat->bus_setup(priv->ioaddr);
 	/* Initialize the MAC Core */
 	priv->hw->mac->core_init(priv->ioaddr);
 
 	priv->rx_coe = priv->hw->mac->rx_coe(priv->ioaddr);
 	if (priv->rx_coe)
 		pr_info("stmmac: Rx Checksum Offload Engine supported\n");
-	if (priv->tx_coe)
+	if (priv->plat->tx_coe)
 		pr_info("\tTX Checksum insertion supported\n");
 
 	priv->shutdown = 0;
@@ -857,8 +851,7 @@ static int stmmac_open(struct net_device *dev)
 	writel(0xffffffff, priv->ioaddr + MMC_LOW_INTR_MASK);
 
 	/* Enable the MAC Rx/Tx */
-	stmmac_mac_enable_rx(priv->ioaddr);
-	stmmac_mac_enable_tx(priv->ioaddr);
+	stmmac_enable_mac(priv->ioaddr);
 
 	/* Set the HW DMA mode and the COE */
 	stmmac_dma_operation_mode(priv);
@@ -928,9 +921,8 @@ static int stmmac_release(struct net_device *dev)
 	/* Release and free the Rx/Tx resources */
 	free_dma_desc_resources(priv);
 
-	/* Disable the MAC core */
-	stmmac_mac_disable_tx(priv->ioaddr);
-	stmmac_mac_disable_rx(priv->ioaddr);
+	/* Disable the MAC Rx/Tx */
+	stmmac_disable_mac(priv->ioaddr);
 
 	netif_carrier_off(dev);
 
@@ -1058,7 +1050,8 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev)
 		return stmmac_sw_tso(priv, skb);
 
 	if (likely((skb->ip_summed == CHECKSUM_PARTIAL))) {
-		if (unlikely((!priv->tx_coe) || (priv->no_csum_insertion)))
+		if (unlikely((!priv->plat->tx_coe) ||
+			     (priv->no_csum_insertion)))
 			skb_checksum_help(skb);
 		else
 			csum_insertion = 1;
@@ -1162,7 +1155,7 @@ static inline void stmmac_rx_refill(struct stmmac_priv *priv)
 					   DMA_FROM_DEVICE);
 
 			(p + entry)->des2 = priv->rx_skbuff_dma[entry];
-			if (unlikely(priv->is_gmac)) {
+			if (unlikely(priv->plat->has_gmac)) {
 				if (bfsize >= BUF_SIZE_8KiB)
 					(p + entry)->des3 =
 					    (p + entry)->des2 + BUF_SIZE_8KiB;
@@ -1372,7 +1365,7 @@ static int stmmac_change_mtu(struct net_device *dev, int new_mtu)
 		return -EBUSY;
 	}
 
-	if (priv->is_gmac)
+	if (priv->plat->has_gmac)
 		max_mtu = JUMBO_LEN;
 	else
 		max_mtu = ETH_DATA_LEN;
@@ -1386,7 +1379,7 @@ static int stmmac_change_mtu(struct net_device *dev, int new_mtu)
 	 * needs to have the Tx COE disabled for oversized frames
 	 * (due to limited buffer sizes). In this case we disable
 	 * the TX csum insertionin the TDES and not use SF. */
-	if ((priv->bugged_jumbo) && (priv->dev->mtu > ETH_DATA_LEN))
+	if ((priv->plat->bugged_jumbo) && (priv->dev->mtu > ETH_DATA_LEN))
 		priv->no_csum_insertion = 1;
 	else
 		priv->no_csum_insertion = 0;
@@ -1406,7 +1399,7 @@ static irqreturn_t stmmac_interrupt(int irq, void *dev_id)
 		return IRQ_NONE;
 	}
 
-	if (priv->is_gmac)
+	if (priv->plat->has_gmac)
 		/* To handle GMAC own interrupts */
 		priv->hw->mac->host_irq_status((void __iomem *) dev->base_addr);
 
@@ -1552,7 +1545,7 @@ static int stmmac_mac_device_setup(struct net_device *dev)
 
 	struct mac_device_info *device;
 
-	if (priv->is_gmac)
+	if (priv->plat->has_gmac)
 		device = dwmac1000_setup(priv->ioaddr);
 	else
 		device = dwmac100_setup(priv->ioaddr);
@@ -1560,7 +1553,7 @@ static int stmmac_mac_device_setup(struct net_device *dev)
 	if (!device)
 		return -ENOMEM;
 
-	if (priv->enh_desc) {
+	if (priv->plat->enh_desc) {
 		device->desc = &enh_desc_ops;
 		pr_info("\tEnhanced descriptor structure\n");
 	} else
@@ -1614,7 +1607,7 @@ static int stmmac_associate_phy(struct device *dev, void *data)
 		plat_dat->bus_id);
 
 	/* Check that this phy is for the MAC being initialised */
-	if (priv->bus_id != plat_dat->bus_id)
+	if (priv->plat->bus_id != plat_dat->bus_id)
 		return 0;
 
 	/* OK, this PHY is connected to the MAC.
@@ -1650,7 +1643,7 @@ static int stmmac_dvr_probe(struct platform_device *pdev)
 	struct resource *res;
 	void __iomem *addr = NULL;
 	struct net_device *ndev = NULL;
-	struct stmmac_priv *priv;
+	struct stmmac_priv *priv = NULL;
 	struct plat_stmmacenet_data *plat_dat;
 
 	pr_info("STMMAC driver:\n\tplatform registration... ");
@@ -1699,13 +1692,9 @@ static int stmmac_dvr_probe(struct platform_device *pdev)
 	priv->device = &(pdev->dev);
 	priv->dev = ndev;
 	plat_dat = pdev->dev.platform_data;
-	priv->bus_id = plat_dat->bus_id;
-	priv->pbl = plat_dat->pbl;	/* TLI */
-	priv->mii_clk_csr = plat_dat->clk_csr;
-	priv->tx_coe = plat_dat->tx_coe;
-	priv->bugged_jumbo = plat_dat->bugged_jumbo;
-	priv->is_gmac = plat_dat->has_gmac;	/* GMAC is on board */
-	priv->enh_desc = plat_dat->enh_desc;
+
+	priv->plat = plat_dat;
+
 	priv->ioaddr = addr;
 
 	/* PMT module is not integrated in all the MAC devices. */
@@ -1719,10 +1708,12 @@ static int stmmac_dvr_probe(struct platform_device *pdev)
 	/* Set the I/O base addr */
 	ndev->base_addr = (unsigned long)addr;
 
-	/* Verify embedded resource for the platform */
-	ret = stmmac_claim_resource(pdev);
-	if (ret < 0)
-		goto out;
+	/* Custom initialisation */
+	if (priv->plat->init) {
+		ret = priv->plat->init(pdev);
+		if (unlikely(ret))
+			goto out;
+	}
 
 	/* MAC HW revice detection */
 	ret = stmmac_mac_device_setup(ndev);
@@ -1743,16 +1734,12 @@ static int stmmac_dvr_probe(struct platform_device *pdev)
 		goto out;
 	}
 
-	priv->fix_mac_speed = plat_dat->fix_mac_speed;
-	priv->bus_setup = plat_dat->bus_setup;
-	priv->bsp_priv = plat_dat->bsp_priv;
-
 	pr_info("\t%s - (dev. name: %s - id: %d, IRQ #%d\n"
 	       "\tIO base addr: 0x%p)\n", ndev->name, pdev->name,
 	       pdev->id, ndev->irq, addr);
 
 	/* MDIO bus Registration */
-	pr_debug("\tMDIO bus (id: %d)...", priv->bus_id);
+	pr_debug("\tMDIO bus (id: %d)...", priv->plat->bus_id);
 	ret = stmmac_mdio_register(ndev);
 	if (ret < 0)
 		goto out;
@@ -1760,6 +1747,9 @@ static int stmmac_dvr_probe(struct platform_device *pdev)
 
 out:
 	if (ret < 0) {
+		if (priv->plat->exit)
+			priv->plat->exit(pdev);
+
 		platform_set_drvdata(pdev, NULL);
 		release_mem_region(res->start, resource_size(res));
 		if (addr != NULL)
@@ -1787,13 +1777,15 @@ static int stmmac_dvr_remove(struct platform_device *pdev)
 	priv->hw->dma->stop_rx(priv->ioaddr);
 	priv->hw->dma->stop_tx(priv->ioaddr);
 
-	stmmac_mac_disable_rx(priv->ioaddr);
-	stmmac_mac_disable_tx(priv->ioaddr);
+	stmmac_disable_mac(priv->ioaddr);
 
 	netif_carrier_off(ndev);
 
 	stmmac_mdio_unregister(ndev);
 
+	if (priv->plat->exit)
+		priv->plat->exit(pdev);
+
 	platform_set_drvdata(pdev, NULL);
 	unregister_netdev(ndev);
 
@@ -1839,13 +1831,11 @@ static int stmmac_suspend(struct platform_device *pdev, pm_message_t state)
 					     dis_ic);
 		priv->hw->desc->init_tx_desc(priv->dma_tx, priv->dma_tx_size);
 
-		stmmac_mac_disable_tx(priv->ioaddr);
-
 		/* Enable Power down mode by programming the PMT regs */
 		if (device_can_wakeup(priv->device))
 			priv->hw->mac->pmt(priv->ioaddr, priv->wolopts);
 		else
-			stmmac_mac_disable_rx(priv->ioaddr);
+			stmmac_disable_mac(priv->ioaddr);
 	} else {
 		priv->shutdown = 1;
 		/* Although this can appear slightly redundant it actually
@@ -1886,8 +1876,7 @@ static int stmmac_resume(struct platform_device *pdev)
 	netif_device_attach(dev);
 
 	/* Enable the MAC and DMA */
-	stmmac_mac_enable_rx(priv->ioaddr);
-	stmmac_mac_enable_tx(priv->ioaddr);
+	stmmac_enable_mac(priv->ioaddr);
 	priv->hw->dma->start_tx(priv->ioaddr);
 	priv->hw->dma->start_rx(priv->ioaddr);