From 4f1ceb4b46d523382f5a46622af9d3315a9b3e7f Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Wed, 15 Apr 2009 01:32:20 +0000 Subject: [PATCH] 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 Signed-off-by: David S. Miller --- drivers/net/fec.c | 39 ++++----------------------------------- 1 file changed, 4 insertions(+), 35 deletions(-) diff --git a/drivers/net/fec.c b/drivers/net/fec.c index 6ac1b90c5820..5ca2d6bcc23a 100644 --- a/drivers/net/fec.c +++ b/drivers/net/fec.c @@ -1615,10 +1615,6 @@ 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); @@ -1640,11 +1636,6 @@ 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; icbd_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; @@ -1719,21 +1694,11 @@ 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. */ @@ -1768,6 +1733,10 @@ 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); -- 2.20.1