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Message-Id: <1239795145-27558-8-git-send-email-s.hauer@pengutronix.de>
Date: Wed, 15 Apr 2009 13:32:20 +0200
From: Sascha Hauer <s.hauer@...gutronix.de>
To: netdev@...r.kernel.org
Cc: Greg Ungerer <gerg@...pgear.com>,
Sascha Hauer <s.hauer@...gutronix.de>
Subject: [PATCH 07/12] fec: refactor init function
fec_enet_init() does the hardware initialisation and then calls
fec_restart() which does the same initialisation again, so we
can safely remove the initialisation from fec_enet_init().
Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de>
---
drivers/net/fec.c | 39 ++++-----------------------------------
1 files changed, 4 insertions(+), 35 deletions(-)
diff --git a/drivers/net/fec.c b/drivers/net/fec.c
index b72df48..a3037ab 100644
--- a/drivers/net/fec.c
+++ b/drivers/net/fec.c
@@ -1616,10 +1616,6 @@ int __init fec_enet_init(struct net_device *dev, int index)
fep->hwp = (void __iomem *)dev->base_addr;
fep->netdev = dev;
- /* Whack a reset. We should wait for this. */
- writel(1, fep->hwp + FEC_ECNTRL);
- udelay(10);
-
/* Set the Ethernet address */
#ifdef CONFIG_M5272
fec_get_mac(dev);
@@ -1641,11 +1637,6 @@ int __init fec_enet_init(struct net_device *dev, int index)
fep->rx_bd_base = cbd_base;
fep->tx_bd_base = cbd_base + RX_RING_SIZE;
- fep->dirty_tx = fep->cur_tx = fep->tx_bd_base;
- fep->cur_rx = fep->rx_bd_base;
-
- fep->skb_cur = fep->skb_dirty = 0;
-
/* Initialize the receive buffer descriptors. */
bdp = fep->rx_bd_base;
for (i=0; i<FEC_ENET_RX_PAGES; i++) {
@@ -1689,25 +1680,9 @@ int __init fec_enet_init(struct net_device *dev, int index)
bdp--;
bdp->cbd_sc |= BD_SC_WRAP;
- /* Set receive and transmit descriptor base */
- writel(fep->bd_dma, fep->hwp + FEC_R_DES_START);
- writel((unsigned long)fep->bd_dma + sizeof(struct bufdesc) * RX_RING_SIZE,
- fep->hwp + FEC_X_DES_START);
-
#ifdef HAVE_mii_link_interrupt
fec_request_mii_intr(dev);
#endif
-
- writel(0, fep->hwp + FEC_GRP_HASH_TABLE_HIGH);
- writel(0, fep->hwp + FEC_GRP_HASH_TABLE_LOW);
- writel(PKT_MAXBLR_SIZE, fep->hwp + FEC_R_BUFF_SIZE);
- writel(2, fep->hwp + FEC_ECNTRL);
- writel(0, fep->hwp + FEC_R_DES_ACTIVE);
-#ifndef CONFIG_M5272
- writel(0, fep->hwp + FEC_HASH_TABLE_HIGH);
- writel(0, fep->hwp + FEC_HASH_TABLE_LOW);
-#endif
-
/* The FEC Ethernet specific entries in the device structure */
dev->open = fec_enet_open;
dev->hard_start_xmit = fec_enet_start_xmit;
@@ -1720,21 +1695,11 @@ int __init fec_enet_init(struct net_device *dev, int index)
mii_cmds[i].mii_next = &mii_cmds[i+1];
mii_free = mii_cmds;
- /* setup MII interface */
- writel(OPT_FRAME_SIZE | 0x04, fep->hwp + FEC_R_CNTRL);
- writel(0, fep->hwp + FEC_X_CNTRL);
-
/* Set MII speed to 2.5 MHz */
fep->phy_speed = ((((clk_get_rate(fep->clk) / 2 + 4999999)
/ 2500000) / 2) & 0x3F) << 1;
- writel(fep->phy_speed, fep->hwp + FEC_MII_SPEED);
fec_restart(dev, 0);
- /* Clear and enable interrupts */
- writel(0xffc00000, fep->hwp + FEC_IEVENT);
- writel(FEC_ENET_TXF | FEC_ENET_RXF | FEC_ENET_MII,
- fep->hwp + FEC_IMASK);
-
/* Queue up command to detect the PHY and initialize the
* remainder of the interface.
*/
@@ -1769,6 +1734,10 @@ fec_restart(struct net_device *dev, int duplex)
/* Reset all multicast. */
writel(0, fep->hwp + FEC_GRP_HASH_TABLE_HIGH);
writel(0, fep->hwp + FEC_GRP_HASH_TABLE_LOW);
+#ifndef CONFIG_M5272
+ writel(0, fep->hwp + FEC_HASH_TABLE_HIGH);
+ writel(0, fep->hwp + FEC_HASH_TABLE_LOW);
+#endif
/* Set maximum receive buffer size. */
writel(PKT_MAXBLR_SIZE, fep->hwp + FEC_R_BUFF_SIZE);
--
1.6.2.1
--
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