[ar71xx] add SPI controller driver for the PB44 board

[openwrt.git] / target / linux / ar71xx / files / drivers / net / ag71xx / ag71xx_main.c

diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
index 01f9c03..e5eced2 100644 (file)
--- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
+++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
@@ -1,7 +1,7 @@
 /*
  *  Atheros AR71xx built-in ethernet mac driver
  *
- *  Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
  *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
  *
  *  Based on Atheros' AG7100 driver
@@ -296,17 +296,6 @@ static void ag71xx_hw_set_macaddr(struct ag71xx *ag, unsigned char *mac)
        ag71xx_wr(ag, AG71XX_REG_MAC_ADDR2, t);
 }
 
-#define AR71XX_MAC_CFG1_INIT   (MAC_CFG1_RXE | MAC_CFG1_TXE | \
-                                MAC_CFG1_SRX | MAC_CFG1_STX)
-#define AR71XX_FIFO_CFG5_INIT  0x0007ffef
-
-#define AR91XX_MAC_CFG1_INIT   (MAC_CFG1_RXE | MAC_CFG1_TXE | \
-                                MAC_CFG1_SRX | MAC_CFG1_STX | \
-                                MAC_CFG1_TFC | MAC_CFG1_RFC)
-#define AR91XX_FIFO_CFG5_INIT  0x0007efef
-
-#define FIFO_CFG0_INIT (FIFO_CFG0_ALL << FIFO_CFG0_ENABLE_SHIFT)
-
 static void ag71xx_dma_reset(struct ag71xx *ag)
 {
        int i;
@@ -342,6 +331,25 @@ static void ag71xx_dma_reset(struct ag71xx *ag)
        ag71xx_dump_dma_regs(ag);
 }
 
+#define MAC_CFG1_INIT  (MAC_CFG1_RXE | MAC_CFG1_TXE | \
+                        MAC_CFG1_SRX | MAC_CFG1_STX)
+
+#define FIFO_CFG0_INIT (FIFO_CFG0_ALL << FIFO_CFG0_ENABLE_SHIFT)
+
+#define FIFO_CFG4_INIT (FIFO_CFG4_DE | FIFO_CFG4_DV | FIFO_CFG4_FC | \
+                        FIFO_CFG4_CE | FIFO_CFG4_CR | FIFO_CFG4_LM | \
+                        FIFO_CFG4_LO | FIFO_CFG4_OK | FIFO_CFG4_MC | \
+                        FIFO_CFG4_BC | FIFO_CFG4_DR | FIFO_CFG4_LE | \
+                        FIFO_CFG4_CF | FIFO_CFG4_PF | FIFO_CFG4_UO | \
+                        FIFO_CFG4_VT)
+
+#define FIFO_CFG5_INIT (FIFO_CFG5_DE | FIFO_CFG5_DV | FIFO_CFG5_FC | \
+                        FIFO_CFG5_CE | FIFO_CFG5_LO | FIFO_CFG5_OK | \
+                        FIFO_CFG5_MC | FIFO_CFG5_BC | FIFO_CFG5_DR | \
+                        FIFO_CFG5_CF | FIFO_CFG5_PF | FIFO_CFG5_VT | \
+                        FIFO_CFG5_LE | FIFO_CFG5_FT | FIFO_CFG5_16 | \
+                        FIFO_CFG5_17 | FIFO_CFG5_SF)
+
 static void ag71xx_hw_init(struct ag71xx *ag)
 {
        struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
@@ -355,8 +363,7 @@ static void ag71xx_hw_init(struct ag71xx *ag)
        mdelay(100);
 
        /* setup MAC configuration registers */
-       ag71xx_wr(ag, AG71XX_REG_MAC_CFG1,
-               pdata->is_ar91xx ? AR91XX_MAC_CFG1_INIT : AR71XX_MAC_CFG1_INIT);
+       ag71xx_wr(ag, AG71XX_REG_MAC_CFG1, MAC_CFG1_INIT);
        ag71xx_sb(ag, AG71XX_REG_MAC_CFG2,
                  MAC_CFG2_PAD_CRC_EN | MAC_CFG2_LEN_CHECK);
 
@@ -370,10 +377,8 @@ static void ag71xx_hw_init(struct ag71xx *ag)
        ag71xx_wr(ag, AG71XX_REG_FIFO_CFG0, FIFO_CFG0_INIT);
        ag71xx_wr(ag, AG71XX_REG_FIFO_CFG1, 0x0fff0000);
        ag71xx_wr(ag, AG71XX_REG_FIFO_CFG2, 0x00001fff);
-       ag71xx_wr(ag, AG71XX_REG_FIFO_CFG4, 0x0000ffff);
-       ag71xx_wr(ag, AG71XX_REG_FIFO_CFG5,
-                       pdata->is_ar91xx ? AR91XX_FIFO_CFG5_INIT
-                                        : AR71XX_FIFO_CFG5_INIT);
+       ag71xx_wr(ag, AG71XX_REG_FIFO_CFG4, FIFO_CFG4_INIT);
+       ag71xx_wr(ag, AG71XX_REG_FIFO_CFG5, FIFO_CFG5_INIT);
 
        ag71xx_dma_reset(ag);
 }
@@ -468,6 +473,8 @@ static int ag71xx_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
        if (!ag71xx_desc_empty(desc))
                goto err_drop;
 
+       ag71xx_add_ar8216_header(ag, skb);
+
        if (skb->len <= 0) {
                DBG("%s: packet len is too small\n", ag->dev->name);
                goto err_drop;
@@ -642,15 +649,20 @@ static int ag71xx_rx_packets(struct ag71xx *ag, int limit)
                skb_put(skb, pktlen);
 
                skb->dev = dev;
-               skb->protocol = eth_type_trans(skb, dev);
                skb->ip_summed = CHECKSUM_NONE;
 
-               netif_receive_skb(skb);
-
                dev->last_rx = jiffies;
                dev->stats.rx_packets++;
                dev->stats.rx_bytes += pktlen;
 
+               if (ag71xx_remove_ar8216_header(ag, skb) != 0) {
+                       dev->stats.rx_dropped++;
+                       kfree_skb(skb);
+               } else {
+                       skb->protocol = eth_type_trans(skb, dev);
+                       netif_receive_skb(skb);
+               }
+
                ring->buf[i].skb = NULL;
                done++;
 
@@ -711,13 +723,13 @@ static int ag71xx_poll(struct napi_struct *napi, int limit)
                spin_lock_irqsave(&ag->lock, flags);
                ag71xx_int_enable(ag, AG71XX_INT_POLL);
                spin_unlock_irqrestore(&ag->lock, flags);
-               return 0;
+               return done;
        }
 
  more:
        DBG("%s: stay in polling mode, done=%d, limit=%d\n",
                        dev->name, done, limit);
-       return 1;
+       return done;
 
  oom:
        if (netif_msg_rx_err(ag))
@@ -792,7 +804,7 @@ static int __init ag71xx_probe(struct platform_device *pdev)
        ag = netdev_priv(dev);
        ag->pdev = pdev;
        ag->dev = dev;
-       ag->mii_bus = &ag71xx_mdio_bus->mii_bus;
+       ag->mii_bus = ag71xx_mdio_bus->mii_bus;
        ag->msg_enable = netif_msg_init(ag71xx_debug,
                                        AG71XX_DEFAULT_MSG_ENABLE);
        spin_lock_init(&ag->lock);
@@ -863,16 +875,9 @@ static int __init ag71xx_probe(struct platform_device *pdev)
        ag->oom_timer.data = (unsigned long) dev;
        ag->oom_timer.function = ag71xx_oom_timer_handler;
 
-       netif_napi_add(dev, &ag->napi, ag71xx_poll, AG71XX_NAPI_WEIGHT);
+       memcpy(dev->dev_addr, pdata->mac_addr, ETH_ALEN);
 
-       if (is_valid_ether_addr(pdata->mac_addr))
-               memcpy(dev->dev_addr, pdata->mac_addr, ETH_ALEN);
-       else {
-               dev->dev_addr[0] = 0xde;
-               dev->dev_addr[1] = 0xad;
-               get_random_bytes(&dev->dev_addr[2], 3);
-               dev->dev_addr[5] = pdev->id & 0xff;
-       }
+       netif_napi_add(dev, &ag->napi, ag71xx_poll, AG71XX_NAPI_WEIGHT);
 
        err = register_netdev(dev);
        if (err) {