Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

[linux-2.6] / drivers / net / bfin_mac.c

diff --git a/drivers/net/bfin_mac.c b/drivers/net/bfin_mac.c
index c6586cdb8b95976449c241a2d7c09e5933d2f7bd..717dcc1aa1e97acb8bfddf2e44e97cc51cb8a8f7 100644 (file)
--- a/drivers/net/bfin_mac.c
+++ b/drivers/net/bfin_mac.c
@@ -1,35 +1,11 @@
 /*
- * File:       drivers/net/bfin_mac.c
- * Based on:
- * Maintainer:
- *             Bryan Wu <bryan.wu@analog.com>
+ * Blackfin On-Chip MAC Driver
  *
- * Original author:
- *             Luke Yang <luke.yang@analog.com>
+ * Copyright 2004-2007 Analog Devices Inc.
  *
- * Created:
- * Description:
+ * Enter bugs at http://blackfin.uclinux.org/
  *
- * Modified:
- *             2006-12-19 Aidan Williams, multicast hash support
- *             Copyright 2004-2006 Analog Devices Inc.
- *
- * Bugs:       Enter bugs at http://blackfin.uclinux.org/
- *
- * This program is free software ;  you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation ;  either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY ;  without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program ;  see the file COPYING.
- * If not, write to the Free Software Foundation,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * Licensed under the GPL-2 or later.
  */
 
 #include <linux/init.h>
@@ -66,7 +42,7 @@
 #define DRV_NAME       "bfin_mac"
 #define DRV_VERSION    "1.1"
 #define DRV_AUTHOR     "Bryan Wu, Luke Yang"
-#define DRV_DESC       "Blackfin BF53[67] on-chip Ethernet MAC driver"
+#define DRV_DESC       "Blackfin BF53[67] BF527 on-chip Ethernet MAC driver"
 
 MODULE_AUTHOR(DRV_AUTHOR);
 MODULE_LICENSE("GPL");
@@ -432,7 +408,7 @@ static int mii_probe(struct net_device *dev)
        mdc_div = ((sclk / MDC_CLK) / 2) - 1;
 
        sysctl = bfin_read_EMAC_SYSCTL();
-       sysctl |= SET_MDCDIV(mdc_div);
+       sysctl = (sysctl & ~MDCDIV) | SET_MDCDIV(mdc_div);
        bfin_write_EMAC_SYSCTL(sysctl);
 
        /* search for connect PHY device */
@@ -599,7 +575,6 @@ adjust_head:
 static int bf537mac_hard_start_xmit(struct sk_buff *skb,
                                struct net_device *dev)
 {
-       struct bf537mac_local *lp = netdev_priv(dev);
        unsigned int data;
 
        current_tx_ptr->skb = skb;
@@ -658,7 +633,6 @@ out:
 static void bf537mac_rx(struct net_device *dev)
 {
        struct sk_buff *skb, *new_skb;
-       struct bf537mac_local *lp = netdev_priv(dev);
        unsigned short len;
 
        /* allocate a new skb for next time receive */
@@ -675,6 +649,12 @@ static void bf537mac_rx(struct net_device *dev)
        current_rx_ptr->skb = new_skb;
        current_rx_ptr->desc_a.start_addr = (unsigned long)new_skb->data - 2;
 
+       /* Invidate the data cache of skb->data range when it is write back
+        * cache. It will prevent overwritting the new data from DMA
+        */
+       blackfin_dcache_invalidate_range((unsigned long)new_skb->head,
+                                        (unsigned long)new_skb->end);
+
        len = (unsigned short)((current_rx_ptr->status.status_word) & RX_FRLEN);
        skb_put(skb, len);
        blackfin_dcache_invalidate_range((unsigned long)skb->head,
@@ -776,7 +756,7 @@ static void bf537mac_enable(void)
 
 #if defined(CONFIG_BFIN_MAC_RMII)
        opmode |= RMII; /* For Now only 100MBit are supported */
-#ifdef CONFIG_BF_REV_0_2
+#if (defined(CONFIG_BF537) || defined(CONFIG_BF536)) && CONFIG_BF_REV_0_2
        opmode |= TE;
 #endif
 #endif
@@ -908,10 +888,10 @@ static int bf537mac_open(struct net_device *dev)
                return retval;
 
        phy_start(lp->phydev);
+       phy_write(lp->phydev, MII_BMCR, BMCR_RESET);
        setup_system_regs(dev);
        bf537mac_disable();
        bf537mac_enable();
-
        pr_debug("hardware init finished\n");
        netif_start_queue(dev);
        netif_carrier_on(dev);
@@ -934,6 +914,7 @@ static int bf537mac_close(struct net_device *dev)
        netif_carrier_off(dev);
 
        phy_stop(lp->phydev);
+       phy_write(lp->phydev, MII_BMCR, BMCR_PDOWN);
 
        /* clear everything */
        bf537mac_shutdown(dev);
@@ -988,7 +969,7 @@ static int __init bf537mac_probe(struct net_device *dev)
        lp->mii_bus.write = mdiobus_write;
        lp->mii_bus.reset = mdiobus_reset;
        lp->mii_bus.name = "bfin_mac_mdio";
-       lp->mii_bus.id = 0;
+       snprintf(lp->mii_bus.id, MII_BUS_ID_SIZE, "0");
        lp->mii_bus.irq = kmalloc(sizeof(int)*PHY_MAX_ADDR, GFP_KERNEL);
        for (i = 0; i < PHY_MAX_ADDR; ++i)
                lp->mii_bus.irq[i] = PHY_POLL;
@@ -1018,7 +999,7 @@ static int __init bf537mac_probe(struct net_device *dev)
        /* register irq handler */
        if (request_irq
            (IRQ_MAC_RX, bf537mac_interrupt, IRQF_DISABLED | IRQF_SHARED,
-            "BFIN537_MAC_RX", dev)) {
+            "EMAC_RX", dev)) {
                printk(KERN_WARNING DRV_NAME
                       ": Unable to attach BlackFin MAC RX interrupt\n");
                return -EBUSY;