stmmac: tidy-up stmmac_priv structure

This patch tidies-up the stmmac_priv structure
that had many fileds alredy defined in the
plat_stmmacenet_data structure.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

4 files changed, 44 insertions, 52 deletions

diff --git a/drivers/net/stmmac/stmmac.h b/drivers/net/stmmac/stmmac.h
index 79bdc2e13224..31575670d862 100644
--- a/drivers/net/stmmac/stmmac.h
+++ b/drivers/net/stmmac/stmmac.h
@@ -37,7 +37,6 @@ struct stmmac_priv {
         unsigned int cur_tx;
         unsigned int dirty_tx;
         unsigned int dma_tx_size;
-        int tx_coe;
         int tx_coalesce;
 
         struct dma_desc *dma_rx ;
@@ -48,7 +47,6 @@ struct stmmac_priv {
         struct sk_buff_head rx_recycle;
 
         struct net_device *dev;
-        int is_gmac;
         dma_addr_t dma_rx_phy;
         unsigned int dma_rx_size;
         unsigned int dma_buf_sz;
@@ -60,14 +58,11 @@ struct stmmac_priv {
         struct napi_struct napi;
 
         phy_interface_t phy_interface;
-        int pbl;
-        int bus_id;
         int phy_addr;
         int phy_mask;
         int (*phy_reset) (void *priv);
-        void (*fix_mac_speed) (void *priv, unsigned int speed);
-        void (*bus_setup)(void __iomem *ioaddr);
-        void *bsp_priv;
+        int rx_coe;
+        int no_csum_insertion;
 
         int phy_irq;
         struct phy_device *phydev;
@@ -77,7 +72,6 @@ struct stmmac_priv {
         unsigned int flow_ctrl;
         unsigned int pause;
         struct mii_bus *mii;
-        int mii_clk_csr;
 
         u32 msg_enable;
         spinlock_t lock;
@@ -90,10 +84,7 @@ struct stmmac_priv {
 #ifdef STMMAC_VLAN_TAG_USED
         struct vlan_group *vlgrp;
 #endif
-        int enh_desc;
-        int rx_coe;
-        int bugged_jumbo;
-        int no_csum_insertion;
+        struct plat_stmmacenet_data *plat;
 };
 
 #ifdef CONFIG_STM_DRIVERS
diff --git a/drivers/net/stmmac/stmmac_ethtool.c b/drivers/net/stmmac/stmmac_ethtool.c
index 6d65482e789a..f2695fd180ca 100644
--- a/drivers/net/stmmac/stmmac_ethtool.c
+++ b/drivers/net/stmmac/stmmac_ethtool.c
@@ -94,7 +94,7 @@ static void stmmac_ethtool_getdrvinfo(struct net_device *dev,
 {
         struct stmmac_priv *priv = netdev_priv(dev);
 
-        if (!priv->is_gmac)
+        if (!priv->plat->has_gmac)
                 strcpy(info->driver, MAC100_ETHTOOL_NAME);
         else
                 strcpy(info->driver, GMAC_ETHTOOL_NAME);
@@ -176,7 +176,7 @@ static void stmmac_ethtool_gregs(struct net_device *dev,
 
         memset(reg_space, 0x0, REG_SPACE_SIZE);
 
-        if (!priv->is_gmac) {
+        if (!priv->plat->has_gmac) {
                 /* MAC registers */
                 for (i = 0; i < 12; i++)
                         reg_space[i] = readl(priv->ioaddr + (i * 4));
diff --git a/drivers/net/stmmac/stmmac_main.c b/drivers/net/stmmac/stmmac_main.c
index 06bc6034ce81..29ba28660fa9 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);
@@ -552,7 +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
@@ -814,7 +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)) {
 
@@ -825,15 +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;
@@ -1042,7 +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;
@@ -1146,7 +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;
@@ -1356,7 +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;
@@ -1370,7 +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;
@@ -1390,7 +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);
 
@@ -1536,7 +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);
@@ -1544,7 +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
@@ -1598,7 +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.
@@ -1683,13 +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. */
@@ -1727,16 +1732,12 @@ 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;
diff --git a/drivers/net/stmmac/stmmac_mdio.c b/drivers/net/stmmac/stmmac_mdio.c
index d7441616357d..234b4068a1fc 100644
--- a/drivers/net/stmmac/stmmac_mdio.c
+++ b/drivers/net/stmmac/stmmac_mdio.c
@@ -53,7 +53,7 @@ static int stmmac_mdio_read(struct mii_bus *bus, int phyaddr, int phyreg)
         int data;
         u16 regValue = (((phyaddr << 11) & (0x0000F800)) |
                         ((phyreg << 6) & (0x000007C0)));
-        regValue |= MII_BUSY | ((priv->mii_clk_csr & 7) << 2);
+        regValue |= MII_BUSY | ((priv->plat->clk_csr & 7) << 2);
 
         do {} while (((readl(priv->ioaddr + mii_address)) & MII_BUSY) == 1);
         writel(regValue, priv->ioaddr + mii_address);
@@ -85,7 +85,7 @@ static int stmmac_mdio_write(struct mii_bus *bus, int phyaddr, int phyreg,
             (((phyaddr << 11) & (0x0000F800)) | ((phyreg << 6) & (0x000007C0)))
             | MII_WRITE;
 
-        value |= MII_BUSY | ((priv->mii_clk_csr & 7) << 2);
+        value |= MII_BUSY | ((priv->plat->clk_csr & 7) << 2);
 
 
         /* Wait until any existing MII operation is complete */
@@ -114,7 +114,7 @@ static int stmmac_mdio_reset(struct mii_bus *bus)
 
         if (priv->phy_reset) {
                 pr_debug("stmmac_mdio_reset: calling phy_reset\n");
-                priv->phy_reset(priv->bsp_priv);
+                priv->phy_reset(priv->plat->bsp_priv);
         }
 
         /* This is a workaround for problems with the STE101P PHY.
@@ -157,7 +157,7 @@ int stmmac_mdio_register(struct net_device *ndev)
         new_bus->read = &stmmac_mdio_read;
         new_bus->write = &stmmac_mdio_write;
         new_bus->reset = &stmmac_mdio_reset;
-        snprintf(new_bus->id, MII_BUS_ID_SIZE, "%x", priv->bus_id);
+        snprintf(new_bus->id, MII_BUS_ID_SIZE, "%x", priv->plat->bus_id);
         new_bus->priv = ndev;
         new_bus->irq = irqlist;
         new_bus->phy_mask = priv->phy_mask;