![Andy Fleming](/assets/img/avatar_default.png)
Having the id field be an int was making more complex bus topologies excessively difficult. For now, just convert it to a string, and change all instances of "bus->id = val" to snprintf(id, MII_BUS_ID_LEN, "%x", val). Signed-off-by: Andy Fleming <afleming@freescale.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
1531 lines
33 KiB
C
1531 lines
33 KiB
C
/*
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* Combined Ethernet driver for Motorola MPC8xx and MPC82xx.
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*
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* Copyright (c) 2003 Intracom S.A.
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* by Pantelis Antoniou <panto@intracom.gr>
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*
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* 2005 (c) MontaVista Software, Inc.
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* Vitaly Bordug <vbordug@ru.mvista.com>
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*
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* Heavily based on original FEC driver by Dan Malek <dan@embeddededge.com>
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* and modifications by Joakim Tjernlund <joakim.tjernlund@lumentis.se>
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*
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* This file is licensed under the terms of the GNU General Public License
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* version 2. This program is licensed "as is" without any warranty of any
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* kind, whether express or implied.
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/string.h>
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#include <linux/ptrace.h>
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#include <linux/errno.h>
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#include <linux/ioport.h>
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#include <linux/slab.h>
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#include <linux/interrupt.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/skbuff.h>
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#include <linux/spinlock.h>
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#include <linux/mii.h>
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#include <linux/ethtool.h>
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#include <linux/bitops.h>
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#include <linux/fs.h>
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#include <linux/platform_device.h>
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#include <linux/phy.h>
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#include <linux/vmalloc.h>
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#include <asm/pgtable.h>
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#include <asm/irq.h>
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#include <asm/uaccess.h>
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#ifdef CONFIG_PPC_CPM_NEW_BINDING
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#include <asm/of_platform.h>
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#endif
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#include "fs_enet.h"
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/*************************************************/
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#ifndef CONFIG_PPC_CPM_NEW_BINDING
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static char version[] __devinitdata =
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DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")" "\n";
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#endif
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MODULE_AUTHOR("Pantelis Antoniou <panto@intracom.gr>");
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MODULE_DESCRIPTION("Freescale Ethernet Driver");
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MODULE_LICENSE("GPL");
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MODULE_VERSION(DRV_MODULE_VERSION);
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static int fs_enet_debug = -1; /* -1 == use FS_ENET_DEF_MSG_ENABLE as value */
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module_param(fs_enet_debug, int, 0);
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MODULE_PARM_DESC(fs_enet_debug,
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"Freescale bitmapped debugging message enable value");
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#ifdef CONFIG_NET_POLL_CONTROLLER
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static void fs_enet_netpoll(struct net_device *dev);
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#endif
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static void fs_set_multicast_list(struct net_device *dev)
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{
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struct fs_enet_private *fep = netdev_priv(dev);
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(*fep->ops->set_multicast_list)(dev);
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}
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static void skb_align(struct sk_buff *skb, int align)
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{
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int off = ((unsigned long)skb->data) & (align - 1);
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if (off)
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skb_reserve(skb, align - off);
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}
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/* NAPI receive function */
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static int fs_enet_rx_napi(struct napi_struct *napi, int budget)
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{
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struct fs_enet_private *fep = container_of(napi, struct fs_enet_private, napi);
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struct net_device *dev = fep->ndev;
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const struct fs_platform_info *fpi = fep->fpi;
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cbd_t __iomem *bdp;
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struct sk_buff *skb, *skbn, *skbt;
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int received = 0;
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u16 pkt_len, sc;
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int curidx;
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/*
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* First, grab all of the stats for the incoming packet.
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* These get messed up if we get called due to a busy condition.
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*/
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bdp = fep->cur_rx;
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/* clear RX status bits for napi*/
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(*fep->ops->napi_clear_rx_event)(dev);
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while (((sc = CBDR_SC(bdp)) & BD_ENET_RX_EMPTY) == 0) {
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curidx = bdp - fep->rx_bd_base;
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/*
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* Since we have allocated space to hold a complete frame,
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* the last indicator should be set.
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*/
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if ((sc & BD_ENET_RX_LAST) == 0)
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printk(KERN_WARNING DRV_MODULE_NAME
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": %s rcv is not +last\n",
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dev->name);
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/*
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* Check for errors.
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*/
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if (sc & (BD_ENET_RX_LG | BD_ENET_RX_SH | BD_ENET_RX_CL |
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BD_ENET_RX_NO | BD_ENET_RX_CR | BD_ENET_RX_OV)) {
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fep->stats.rx_errors++;
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/* Frame too long or too short. */
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if (sc & (BD_ENET_RX_LG | BD_ENET_RX_SH))
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fep->stats.rx_length_errors++;
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/* Frame alignment */
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if (sc & (BD_ENET_RX_NO | BD_ENET_RX_CL))
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fep->stats.rx_frame_errors++;
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/* CRC Error */
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if (sc & BD_ENET_RX_CR)
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fep->stats.rx_crc_errors++;
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/* FIFO overrun */
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if (sc & BD_ENET_RX_OV)
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fep->stats.rx_crc_errors++;
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skb = fep->rx_skbuff[curidx];
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dma_unmap_single(fep->dev, CBDR_BUFADDR(bdp),
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L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
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DMA_FROM_DEVICE);
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skbn = skb;
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} else {
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skb = fep->rx_skbuff[curidx];
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dma_unmap_single(fep->dev, CBDR_BUFADDR(bdp),
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L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
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DMA_FROM_DEVICE);
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/*
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* Process the incoming frame.
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*/
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fep->stats.rx_packets++;
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pkt_len = CBDR_DATLEN(bdp) - 4; /* remove CRC */
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fep->stats.rx_bytes += pkt_len + 4;
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if (pkt_len <= fpi->rx_copybreak) {
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/* +2 to make IP header L1 cache aligned */
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skbn = dev_alloc_skb(pkt_len + 2);
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if (skbn != NULL) {
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skb_reserve(skbn, 2); /* align IP header */
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skb_copy_from_linear_data(skb,
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skbn->data, pkt_len);
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/* swap */
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skbt = skb;
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skb = skbn;
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skbn = skbt;
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}
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} else {
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skbn = dev_alloc_skb(ENET_RX_FRSIZE);
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if (skbn)
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skb_align(skbn, ENET_RX_ALIGN);
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}
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if (skbn != NULL) {
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skb_put(skb, pkt_len); /* Make room */
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skb->protocol = eth_type_trans(skb, dev);
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received++;
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netif_receive_skb(skb);
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} else {
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printk(KERN_WARNING DRV_MODULE_NAME
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": %s Memory squeeze, dropping packet.\n",
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dev->name);
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fep->stats.rx_dropped++;
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skbn = skb;
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}
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}
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fep->rx_skbuff[curidx] = skbn;
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CBDW_BUFADDR(bdp, dma_map_single(fep->dev, skbn->data,
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L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
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DMA_FROM_DEVICE));
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CBDW_DATLEN(bdp, 0);
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CBDW_SC(bdp, (sc & ~BD_ENET_RX_STATS) | BD_ENET_RX_EMPTY);
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/*
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* Update BD pointer to next entry.
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*/
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if ((sc & BD_ENET_RX_WRAP) == 0)
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bdp++;
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else
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bdp = fep->rx_bd_base;
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(*fep->ops->rx_bd_done)(dev);
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if (received >= budget)
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break;
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}
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fep->cur_rx = bdp;
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if (received < budget) {
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/* done */
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netif_rx_complete(dev, napi);
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(*fep->ops->napi_enable_rx)(dev);
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}
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return received;
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}
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/* non NAPI receive function */
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static int fs_enet_rx_non_napi(struct net_device *dev)
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{
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struct fs_enet_private *fep = netdev_priv(dev);
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const struct fs_platform_info *fpi = fep->fpi;
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cbd_t __iomem *bdp;
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struct sk_buff *skb, *skbn, *skbt;
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int received = 0;
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u16 pkt_len, sc;
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int curidx;
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/*
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* First, grab all of the stats for the incoming packet.
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* These get messed up if we get called due to a busy condition.
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*/
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bdp = fep->cur_rx;
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while (((sc = CBDR_SC(bdp)) & BD_ENET_RX_EMPTY) == 0) {
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curidx = bdp - fep->rx_bd_base;
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/*
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* Since we have allocated space to hold a complete frame,
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* the last indicator should be set.
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*/
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if ((sc & BD_ENET_RX_LAST) == 0)
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printk(KERN_WARNING DRV_MODULE_NAME
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": %s rcv is not +last\n",
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dev->name);
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/*
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* Check for errors.
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*/
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if (sc & (BD_ENET_RX_LG | BD_ENET_RX_SH | BD_ENET_RX_CL |
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BD_ENET_RX_NO | BD_ENET_RX_CR | BD_ENET_RX_OV)) {
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fep->stats.rx_errors++;
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/* Frame too long or too short. */
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if (sc & (BD_ENET_RX_LG | BD_ENET_RX_SH))
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fep->stats.rx_length_errors++;
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/* Frame alignment */
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if (sc & (BD_ENET_RX_NO | BD_ENET_RX_CL))
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fep->stats.rx_frame_errors++;
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/* CRC Error */
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if (sc & BD_ENET_RX_CR)
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fep->stats.rx_crc_errors++;
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/* FIFO overrun */
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if (sc & BD_ENET_RX_OV)
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fep->stats.rx_crc_errors++;
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skb = fep->rx_skbuff[curidx];
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dma_unmap_single(fep->dev, CBDR_BUFADDR(bdp),
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L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
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DMA_FROM_DEVICE);
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skbn = skb;
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} else {
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skb = fep->rx_skbuff[curidx];
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dma_unmap_single(fep->dev, CBDR_BUFADDR(bdp),
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L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
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DMA_FROM_DEVICE);
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/*
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* Process the incoming frame.
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*/
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fep->stats.rx_packets++;
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pkt_len = CBDR_DATLEN(bdp) - 4; /* remove CRC */
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fep->stats.rx_bytes += pkt_len + 4;
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if (pkt_len <= fpi->rx_copybreak) {
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/* +2 to make IP header L1 cache aligned */
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skbn = dev_alloc_skb(pkt_len + 2);
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if (skbn != NULL) {
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skb_reserve(skbn, 2); /* align IP header */
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skb_copy_from_linear_data(skb,
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skbn->data, pkt_len);
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/* swap */
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skbt = skb;
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skb = skbn;
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skbn = skbt;
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}
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} else {
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skbn = dev_alloc_skb(ENET_RX_FRSIZE);
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if (skbn)
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skb_align(skbn, ENET_RX_ALIGN);
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}
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if (skbn != NULL) {
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skb_put(skb, pkt_len); /* Make room */
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skb->protocol = eth_type_trans(skb, dev);
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received++;
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netif_rx(skb);
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} else {
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printk(KERN_WARNING DRV_MODULE_NAME
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": %s Memory squeeze, dropping packet.\n",
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dev->name);
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fep->stats.rx_dropped++;
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skbn = skb;
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}
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}
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fep->rx_skbuff[curidx] = skbn;
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CBDW_BUFADDR(bdp, dma_map_single(fep->dev, skbn->data,
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L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
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DMA_FROM_DEVICE));
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CBDW_DATLEN(bdp, 0);
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CBDW_SC(bdp, (sc & ~BD_ENET_RX_STATS) | BD_ENET_RX_EMPTY);
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/*
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* Update BD pointer to next entry.
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*/
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if ((sc & BD_ENET_RX_WRAP) == 0)
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bdp++;
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else
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bdp = fep->rx_bd_base;
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(*fep->ops->rx_bd_done)(dev);
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}
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fep->cur_rx = bdp;
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return 0;
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}
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static void fs_enet_tx(struct net_device *dev)
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{
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struct fs_enet_private *fep = netdev_priv(dev);
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cbd_t __iomem *bdp;
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struct sk_buff *skb;
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int dirtyidx, do_wake, do_restart;
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u16 sc;
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spin_lock(&fep->tx_lock);
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bdp = fep->dirty_tx;
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do_wake = do_restart = 0;
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while (((sc = CBDR_SC(bdp)) & BD_ENET_TX_READY) == 0) {
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dirtyidx = bdp - fep->tx_bd_base;
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if (fep->tx_free == fep->tx_ring)
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break;
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skb = fep->tx_skbuff[dirtyidx];
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/*
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* Check for errors.
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*/
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if (sc & (BD_ENET_TX_HB | BD_ENET_TX_LC |
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BD_ENET_TX_RL | BD_ENET_TX_UN | BD_ENET_TX_CSL)) {
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if (sc & BD_ENET_TX_HB) /* No heartbeat */
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fep->stats.tx_heartbeat_errors++;
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if (sc & BD_ENET_TX_LC) /* Late collision */
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fep->stats.tx_window_errors++;
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if (sc & BD_ENET_TX_RL) /* Retrans limit */
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fep->stats.tx_aborted_errors++;
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if (sc & BD_ENET_TX_UN) /* Underrun */
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fep->stats.tx_fifo_errors++;
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if (sc & BD_ENET_TX_CSL) /* Carrier lost */
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fep->stats.tx_carrier_errors++;
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if (sc & (BD_ENET_TX_LC | BD_ENET_TX_RL | BD_ENET_TX_UN)) {
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fep->stats.tx_errors++;
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do_restart = 1;
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}
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} else
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fep->stats.tx_packets++;
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if (sc & BD_ENET_TX_READY)
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printk(KERN_WARNING DRV_MODULE_NAME
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": %s HEY! Enet xmit interrupt and TX_READY.\n",
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dev->name);
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/*
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* Deferred means some collisions occurred during transmit,
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* but we eventually sent the packet OK.
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*/
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if (sc & BD_ENET_TX_DEF)
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fep->stats.collisions++;
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/* unmap */
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dma_unmap_single(fep->dev, CBDR_BUFADDR(bdp),
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skb->len, DMA_TO_DEVICE);
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/*
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* Free the sk buffer associated with this last transmit.
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*/
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dev_kfree_skb_irq(skb);
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fep->tx_skbuff[dirtyidx] = NULL;
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/*
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* Update pointer to next buffer descriptor to be transmitted.
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*/
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if ((sc & BD_ENET_TX_WRAP) == 0)
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bdp++;
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else
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bdp = fep->tx_bd_base;
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/*
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* Since we have freed up a buffer, the ring is no longer
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* full.
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*/
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if (!fep->tx_free++)
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do_wake = 1;
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}
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fep->dirty_tx = bdp;
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if (do_restart)
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(*fep->ops->tx_restart)(dev);
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spin_unlock(&fep->tx_lock);
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if (do_wake)
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netif_wake_queue(dev);
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}
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/*
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* The interrupt handler.
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* This is called from the MPC core interrupt.
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*/
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static irqreturn_t
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fs_enet_interrupt(int irq, void *dev_id)
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{
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struct net_device *dev = dev_id;
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struct fs_enet_private *fep;
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const struct fs_platform_info *fpi;
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u32 int_events;
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u32 int_clr_events;
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int nr, napi_ok;
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int handled;
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fep = netdev_priv(dev);
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fpi = fep->fpi;
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nr = 0;
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while ((int_events = (*fep->ops->get_int_events)(dev)) != 0) {
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nr++;
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int_clr_events = int_events;
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if (fpi->use_napi)
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int_clr_events &= ~fep->ev_napi_rx;
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(*fep->ops->clear_int_events)(dev, int_clr_events);
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if (int_events & fep->ev_err)
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(*fep->ops->ev_error)(dev, int_events);
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if (int_events & fep->ev_rx) {
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if (!fpi->use_napi)
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fs_enet_rx_non_napi(dev);
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else {
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napi_ok = napi_schedule_prep(&fep->napi);
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(*fep->ops->napi_disable_rx)(dev);
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(*fep->ops->clear_int_events)(dev, fep->ev_napi_rx);
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/* NOTE: it is possible for FCCs in NAPI mode */
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/* to submit a spurious interrupt while in poll */
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if (napi_ok)
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__netif_rx_schedule(dev, &fep->napi);
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}
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}
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if (int_events & fep->ev_tx)
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fs_enet_tx(dev);
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}
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handled = nr > 0;
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return IRQ_RETVAL(handled);
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}
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|
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void fs_init_bds(struct net_device *dev)
|
|
{
|
|
struct fs_enet_private *fep = netdev_priv(dev);
|
|
cbd_t __iomem *bdp;
|
|
struct sk_buff *skb;
|
|
int i;
|
|
|
|
fs_cleanup_bds(dev);
|
|
|
|
fep->dirty_tx = fep->cur_tx = fep->tx_bd_base;
|
|
fep->tx_free = fep->tx_ring;
|
|
fep->cur_rx = fep->rx_bd_base;
|
|
|
|
/*
|
|
* Initialize the receive buffer descriptors.
|
|
*/
|
|
for (i = 0, bdp = fep->rx_bd_base; i < fep->rx_ring; i++, bdp++) {
|
|
skb = dev_alloc_skb(ENET_RX_FRSIZE);
|
|
if (skb == NULL) {
|
|
printk(KERN_WARNING DRV_MODULE_NAME
|
|
": %s Memory squeeze, unable to allocate skb\n",
|
|
dev->name);
|
|
break;
|
|
}
|
|
skb_align(skb, ENET_RX_ALIGN);
|
|
fep->rx_skbuff[i] = skb;
|
|
CBDW_BUFADDR(bdp,
|
|
dma_map_single(fep->dev, skb->data,
|
|
L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
|
|
DMA_FROM_DEVICE));
|
|
CBDW_DATLEN(bdp, 0); /* zero */
|
|
CBDW_SC(bdp, BD_ENET_RX_EMPTY |
|
|
((i < fep->rx_ring - 1) ? 0 : BD_SC_WRAP));
|
|
}
|
|
/*
|
|
* if we failed, fillup remainder
|
|
*/
|
|
for (; i < fep->rx_ring; i++, bdp++) {
|
|
fep->rx_skbuff[i] = NULL;
|
|
CBDW_SC(bdp, (i < fep->rx_ring - 1) ? 0 : BD_SC_WRAP);
|
|
}
|
|
|
|
/*
|
|
* ...and the same for transmit.
|
|
*/
|
|
for (i = 0, bdp = fep->tx_bd_base; i < fep->tx_ring; i++, bdp++) {
|
|
fep->tx_skbuff[i] = NULL;
|
|
CBDW_BUFADDR(bdp, 0);
|
|
CBDW_DATLEN(bdp, 0);
|
|
CBDW_SC(bdp, (i < fep->tx_ring - 1) ? 0 : BD_SC_WRAP);
|
|
}
|
|
}
|
|
|
|
void fs_cleanup_bds(struct net_device *dev)
|
|
{
|
|
struct fs_enet_private *fep = netdev_priv(dev);
|
|
struct sk_buff *skb;
|
|
cbd_t __iomem *bdp;
|
|
int i;
|
|
|
|
/*
|
|
* Reset SKB transmit buffers.
|
|
*/
|
|
for (i = 0, bdp = fep->tx_bd_base; i < fep->tx_ring; i++, bdp++) {
|
|
if ((skb = fep->tx_skbuff[i]) == NULL)
|
|
continue;
|
|
|
|
/* unmap */
|
|
dma_unmap_single(fep->dev, CBDR_BUFADDR(bdp),
|
|
skb->len, DMA_TO_DEVICE);
|
|
|
|
fep->tx_skbuff[i] = NULL;
|
|
dev_kfree_skb(skb);
|
|
}
|
|
|
|
/*
|
|
* Reset SKB receive buffers
|
|
*/
|
|
for (i = 0, bdp = fep->rx_bd_base; i < fep->rx_ring; i++, bdp++) {
|
|
if ((skb = fep->rx_skbuff[i]) == NULL)
|
|
continue;
|
|
|
|
/* unmap */
|
|
dma_unmap_single(fep->dev, CBDR_BUFADDR(bdp),
|
|
L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
|
|
DMA_FROM_DEVICE);
|
|
|
|
fep->rx_skbuff[i] = NULL;
|
|
|
|
dev_kfree_skb(skb);
|
|
}
|
|
}
|
|
|
|
/**********************************************************************************/
|
|
|
|
static int fs_enet_start_xmit(struct sk_buff *skb, struct net_device *dev)
|
|
{
|
|
struct fs_enet_private *fep = netdev_priv(dev);
|
|
cbd_t __iomem *bdp;
|
|
int curidx;
|
|
u16 sc;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&fep->tx_lock, flags);
|
|
|
|
/*
|
|
* Fill in a Tx ring entry
|
|
*/
|
|
bdp = fep->cur_tx;
|
|
|
|
if (!fep->tx_free || (CBDR_SC(bdp) & BD_ENET_TX_READY)) {
|
|
netif_stop_queue(dev);
|
|
spin_unlock_irqrestore(&fep->tx_lock, flags);
|
|
|
|
/*
|
|
* Ooops. All transmit buffers are full. Bail out.
|
|
* This should not happen, since the tx queue should be stopped.
|
|
*/
|
|
printk(KERN_WARNING DRV_MODULE_NAME
|
|
": %s tx queue full!.\n", dev->name);
|
|
return NETDEV_TX_BUSY;
|
|
}
|
|
|
|
curidx = bdp - fep->tx_bd_base;
|
|
/*
|
|
* Clear all of the status flags.
|
|
*/
|
|
CBDC_SC(bdp, BD_ENET_TX_STATS);
|
|
|
|
/*
|
|
* Save skb pointer.
|
|
*/
|
|
fep->tx_skbuff[curidx] = skb;
|
|
|
|
fep->stats.tx_bytes += skb->len;
|
|
|
|
/*
|
|
* Push the data cache so the CPM does not get stale memory data.
|
|
*/
|
|
CBDW_BUFADDR(bdp, dma_map_single(fep->dev,
|
|
skb->data, skb->len, DMA_TO_DEVICE));
|
|
CBDW_DATLEN(bdp, skb->len);
|
|
|
|
dev->trans_start = jiffies;
|
|
|
|
/*
|
|
* If this was the last BD in the ring, start at the beginning again.
|
|
*/
|
|
if ((CBDR_SC(bdp) & BD_ENET_TX_WRAP) == 0)
|
|
fep->cur_tx++;
|
|
else
|
|
fep->cur_tx = fep->tx_bd_base;
|
|
|
|
if (!--fep->tx_free)
|
|
netif_stop_queue(dev);
|
|
|
|
/* Trigger transmission start */
|
|
sc = BD_ENET_TX_READY | BD_ENET_TX_INTR |
|
|
BD_ENET_TX_LAST | BD_ENET_TX_TC;
|
|
|
|
/* note that while FEC does not have this bit
|
|
* it marks it as available for software use
|
|
* yay for hw reuse :) */
|
|
if (skb->len <= 60)
|
|
sc |= BD_ENET_TX_PAD;
|
|
CBDS_SC(bdp, sc);
|
|
|
|
(*fep->ops->tx_kickstart)(dev);
|
|
|
|
spin_unlock_irqrestore(&fep->tx_lock, flags);
|
|
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
static int fs_request_irq(struct net_device *dev, int irq, const char *name,
|
|
irq_handler_t irqf)
|
|
{
|
|
struct fs_enet_private *fep = netdev_priv(dev);
|
|
|
|
(*fep->ops->pre_request_irq)(dev, irq);
|
|
return request_irq(irq, irqf, IRQF_SHARED, name, dev);
|
|
}
|
|
|
|
static void fs_free_irq(struct net_device *dev, int irq)
|
|
{
|
|
struct fs_enet_private *fep = netdev_priv(dev);
|
|
|
|
free_irq(irq, dev);
|
|
(*fep->ops->post_free_irq)(dev, irq);
|
|
}
|
|
|
|
static void fs_timeout(struct net_device *dev)
|
|
{
|
|
struct fs_enet_private *fep = netdev_priv(dev);
|
|
unsigned long flags;
|
|
int wake = 0;
|
|
|
|
fep->stats.tx_errors++;
|
|
|
|
spin_lock_irqsave(&fep->lock, flags);
|
|
|
|
if (dev->flags & IFF_UP) {
|
|
phy_stop(fep->phydev);
|
|
(*fep->ops->stop)(dev);
|
|
(*fep->ops->restart)(dev);
|
|
phy_start(fep->phydev);
|
|
}
|
|
|
|
phy_start(fep->phydev);
|
|
wake = fep->tx_free && !(CBDR_SC(fep->cur_tx) & BD_ENET_TX_READY);
|
|
spin_unlock_irqrestore(&fep->lock, flags);
|
|
|
|
if (wake)
|
|
netif_wake_queue(dev);
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* generic link-change handler - should be sufficient for most cases
|
|
*-----------------------------------------------------------------------------*/
|
|
static void generic_adjust_link(struct net_device *dev)
|
|
{
|
|
struct fs_enet_private *fep = netdev_priv(dev);
|
|
struct phy_device *phydev = fep->phydev;
|
|
int new_state = 0;
|
|
|
|
if (phydev->link) {
|
|
/* adjust to duplex mode */
|
|
if (phydev->duplex != fep->oldduplex) {
|
|
new_state = 1;
|
|
fep->oldduplex = phydev->duplex;
|
|
}
|
|
|
|
if (phydev->speed != fep->oldspeed) {
|
|
new_state = 1;
|
|
fep->oldspeed = phydev->speed;
|
|
}
|
|
|
|
if (!fep->oldlink) {
|
|
new_state = 1;
|
|
fep->oldlink = 1;
|
|
netif_schedule(dev);
|
|
netif_carrier_on(dev);
|
|
netif_start_queue(dev);
|
|
}
|
|
|
|
if (new_state)
|
|
fep->ops->restart(dev);
|
|
} else if (fep->oldlink) {
|
|
new_state = 1;
|
|
fep->oldlink = 0;
|
|
fep->oldspeed = 0;
|
|
fep->oldduplex = -1;
|
|
netif_carrier_off(dev);
|
|
netif_stop_queue(dev);
|
|
}
|
|
|
|
if (new_state && netif_msg_link(fep))
|
|
phy_print_status(phydev);
|
|
}
|
|
|
|
|
|
static void fs_adjust_link(struct net_device *dev)
|
|
{
|
|
struct fs_enet_private *fep = netdev_priv(dev);
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&fep->lock, flags);
|
|
|
|
if(fep->ops->adjust_link)
|
|
fep->ops->adjust_link(dev);
|
|
else
|
|
generic_adjust_link(dev);
|
|
|
|
spin_unlock_irqrestore(&fep->lock, flags);
|
|
}
|
|
|
|
static int fs_init_phy(struct net_device *dev)
|
|
{
|
|
struct fs_enet_private *fep = netdev_priv(dev);
|
|
struct phy_device *phydev;
|
|
|
|
fep->oldlink = 0;
|
|
fep->oldspeed = 0;
|
|
fep->oldduplex = -1;
|
|
if(fep->fpi->bus_id)
|
|
phydev = phy_connect(dev, fep->fpi->bus_id, &fs_adjust_link, 0,
|
|
PHY_INTERFACE_MODE_MII);
|
|
else {
|
|
printk("No phy bus ID specified in BSP code\n");
|
|
return -EINVAL;
|
|
}
|
|
if (IS_ERR(phydev)) {
|
|
printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name);
|
|
return PTR_ERR(phydev);
|
|
}
|
|
|
|
fep->phydev = phydev;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int fs_enet_open(struct net_device *dev)
|
|
{
|
|
struct fs_enet_private *fep = netdev_priv(dev);
|
|
int r;
|
|
int err;
|
|
|
|
if (fep->fpi->use_napi)
|
|
napi_enable(&fep->napi);
|
|
|
|
/* Install our interrupt handler. */
|
|
r = fs_request_irq(dev, fep->interrupt, "fs_enet-mac", fs_enet_interrupt);
|
|
if (r != 0) {
|
|
printk(KERN_ERR DRV_MODULE_NAME
|
|
": %s Could not allocate FS_ENET IRQ!", dev->name);
|
|
if (fep->fpi->use_napi)
|
|
napi_disable(&fep->napi);
|
|
return -EINVAL;
|
|
}
|
|
|
|
err = fs_init_phy(dev);
|
|
if (err) {
|
|
if (fep->fpi->use_napi)
|
|
napi_disable(&fep->napi);
|
|
return err;
|
|
}
|
|
phy_start(fep->phydev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int fs_enet_close(struct net_device *dev)
|
|
{
|
|
struct fs_enet_private *fep = netdev_priv(dev);
|
|
unsigned long flags;
|
|
|
|
netif_stop_queue(dev);
|
|
netif_carrier_off(dev);
|
|
if (fep->fpi->use_napi)
|
|
napi_disable(&fep->napi);
|
|
phy_stop(fep->phydev);
|
|
|
|
spin_lock_irqsave(&fep->lock, flags);
|
|
spin_lock(&fep->tx_lock);
|
|
(*fep->ops->stop)(dev);
|
|
spin_unlock(&fep->tx_lock);
|
|
spin_unlock_irqrestore(&fep->lock, flags);
|
|
|
|
/* release any irqs */
|
|
phy_disconnect(fep->phydev);
|
|
fep->phydev = NULL;
|
|
fs_free_irq(dev, fep->interrupt);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct net_device_stats *fs_enet_get_stats(struct net_device *dev)
|
|
{
|
|
struct fs_enet_private *fep = netdev_priv(dev);
|
|
return &fep->stats;
|
|
}
|
|
|
|
/*************************************************************************/
|
|
|
|
static void fs_get_drvinfo(struct net_device *dev,
|
|
struct ethtool_drvinfo *info)
|
|
{
|
|
strcpy(info->driver, DRV_MODULE_NAME);
|
|
strcpy(info->version, DRV_MODULE_VERSION);
|
|
}
|
|
|
|
static int fs_get_regs_len(struct net_device *dev)
|
|
{
|
|
struct fs_enet_private *fep = netdev_priv(dev);
|
|
|
|
return (*fep->ops->get_regs_len)(dev);
|
|
}
|
|
|
|
static void fs_get_regs(struct net_device *dev, struct ethtool_regs *regs,
|
|
void *p)
|
|
{
|
|
struct fs_enet_private *fep = netdev_priv(dev);
|
|
unsigned long flags;
|
|
int r, len;
|
|
|
|
len = regs->len;
|
|
|
|
spin_lock_irqsave(&fep->lock, flags);
|
|
r = (*fep->ops->get_regs)(dev, p, &len);
|
|
spin_unlock_irqrestore(&fep->lock, flags);
|
|
|
|
if (r == 0)
|
|
regs->version = 0;
|
|
}
|
|
|
|
static int fs_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
|
|
{
|
|
struct fs_enet_private *fep = netdev_priv(dev);
|
|
|
|
if (!fep->phydev)
|
|
return -ENODEV;
|
|
|
|
return phy_ethtool_gset(fep->phydev, cmd);
|
|
}
|
|
|
|
static int fs_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
|
|
{
|
|
struct fs_enet_private *fep = netdev_priv(dev);
|
|
|
|
if (!fep->phydev)
|
|
return -ENODEV;
|
|
|
|
return phy_ethtool_sset(fep->phydev, cmd);
|
|
}
|
|
|
|
static int fs_nway_reset(struct net_device *dev)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static u32 fs_get_msglevel(struct net_device *dev)
|
|
{
|
|
struct fs_enet_private *fep = netdev_priv(dev);
|
|
return fep->msg_enable;
|
|
}
|
|
|
|
static void fs_set_msglevel(struct net_device *dev, u32 value)
|
|
{
|
|
struct fs_enet_private *fep = netdev_priv(dev);
|
|
fep->msg_enable = value;
|
|
}
|
|
|
|
static const struct ethtool_ops fs_ethtool_ops = {
|
|
.get_drvinfo = fs_get_drvinfo,
|
|
.get_regs_len = fs_get_regs_len,
|
|
.get_settings = fs_get_settings,
|
|
.set_settings = fs_set_settings,
|
|
.nway_reset = fs_nway_reset,
|
|
.get_link = ethtool_op_get_link,
|
|
.get_msglevel = fs_get_msglevel,
|
|
.set_msglevel = fs_set_msglevel,
|
|
.set_tx_csum = ethtool_op_set_tx_csum, /* local! */
|
|
.set_sg = ethtool_op_set_sg,
|
|
.get_regs = fs_get_regs,
|
|
};
|
|
|
|
static int fs_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
|
|
{
|
|
struct fs_enet_private *fep = netdev_priv(dev);
|
|
struct mii_ioctl_data *mii = (struct mii_ioctl_data *)&rq->ifr_data;
|
|
|
|
if (!netif_running(dev))
|
|
return -EINVAL;
|
|
|
|
return phy_mii_ioctl(fep->phydev, mii, cmd);
|
|
}
|
|
|
|
extern int fs_mii_connect(struct net_device *dev);
|
|
extern void fs_mii_disconnect(struct net_device *dev);
|
|
|
|
#ifndef CONFIG_PPC_CPM_NEW_BINDING
|
|
static struct net_device *fs_init_instance(struct device *dev,
|
|
struct fs_platform_info *fpi)
|
|
{
|
|
struct net_device *ndev = NULL;
|
|
struct fs_enet_private *fep = NULL;
|
|
int privsize, i, r, err = 0, registered = 0;
|
|
|
|
fpi->fs_no = fs_get_id(fpi);
|
|
/* guard */
|
|
if ((unsigned int)fpi->fs_no >= FS_MAX_INDEX)
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
privsize = sizeof(*fep) + (sizeof(struct sk_buff **) *
|
|
(fpi->rx_ring + fpi->tx_ring));
|
|
|
|
ndev = alloc_etherdev(privsize);
|
|
if (!ndev) {
|
|
err = -ENOMEM;
|
|
goto err;
|
|
}
|
|
|
|
fep = netdev_priv(ndev);
|
|
|
|
fep->dev = dev;
|
|
dev_set_drvdata(dev, ndev);
|
|
fep->fpi = fpi;
|
|
if (fpi->init_ioports)
|
|
fpi->init_ioports((struct fs_platform_info *)fpi);
|
|
|
|
#ifdef CONFIG_FS_ENET_HAS_FEC
|
|
if (fs_get_fec_index(fpi->fs_no) >= 0)
|
|
fep->ops = &fs_fec_ops;
|
|
#endif
|
|
|
|
#ifdef CONFIG_FS_ENET_HAS_SCC
|
|
if (fs_get_scc_index(fpi->fs_no) >=0)
|
|
fep->ops = &fs_scc_ops;
|
|
#endif
|
|
|
|
#ifdef CONFIG_FS_ENET_HAS_FCC
|
|
if (fs_get_fcc_index(fpi->fs_no) >= 0)
|
|
fep->ops = &fs_fcc_ops;
|
|
#endif
|
|
|
|
if (fep->ops == NULL) {
|
|
printk(KERN_ERR DRV_MODULE_NAME
|
|
": %s No matching ops found (%d).\n",
|
|
ndev->name, fpi->fs_no);
|
|
err = -EINVAL;
|
|
goto err;
|
|
}
|
|
|
|
r = (*fep->ops->setup_data)(ndev);
|
|
if (r != 0) {
|
|
printk(KERN_ERR DRV_MODULE_NAME
|
|
": %s setup_data failed\n",
|
|
ndev->name);
|
|
err = r;
|
|
goto err;
|
|
}
|
|
|
|
/* point rx_skbuff, tx_skbuff */
|
|
fep->rx_skbuff = (struct sk_buff **)&fep[1];
|
|
fep->tx_skbuff = fep->rx_skbuff + fpi->rx_ring;
|
|
|
|
/* init locks */
|
|
spin_lock_init(&fep->lock);
|
|
spin_lock_init(&fep->tx_lock);
|
|
|
|
/*
|
|
* Set the Ethernet address.
|
|
*/
|
|
for (i = 0; i < 6; i++)
|
|
ndev->dev_addr[i] = fpi->macaddr[i];
|
|
|
|
r = (*fep->ops->allocate_bd)(ndev);
|
|
|
|
if (fep->ring_base == NULL) {
|
|
printk(KERN_ERR DRV_MODULE_NAME
|
|
": %s buffer descriptor alloc failed (%d).\n", ndev->name, r);
|
|
err = r;
|
|
goto err;
|
|
}
|
|
|
|
/*
|
|
* Set receive and transmit descriptor base.
|
|
*/
|
|
fep->rx_bd_base = fep->ring_base;
|
|
fep->tx_bd_base = fep->rx_bd_base + fpi->rx_ring;
|
|
|
|
/* initialize ring size variables */
|
|
fep->tx_ring = fpi->tx_ring;
|
|
fep->rx_ring = fpi->rx_ring;
|
|
|
|
/*
|
|
* The FEC Ethernet specific entries in the device structure.
|
|
*/
|
|
ndev->open = fs_enet_open;
|
|
ndev->hard_start_xmit = fs_enet_start_xmit;
|
|
ndev->tx_timeout = fs_timeout;
|
|
ndev->watchdog_timeo = 2 * HZ;
|
|
ndev->stop = fs_enet_close;
|
|
ndev->get_stats = fs_enet_get_stats;
|
|
ndev->set_multicast_list = fs_set_multicast_list;
|
|
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
ndev->poll_controller = fs_enet_netpoll;
|
|
#endif
|
|
|
|
netif_napi_add(ndev, &fep->napi,
|
|
fs_enet_rx_napi, fpi->napi_weight);
|
|
|
|
ndev->ethtool_ops = &fs_ethtool_ops;
|
|
ndev->do_ioctl = fs_ioctl;
|
|
|
|
init_timer(&fep->phy_timer_list);
|
|
|
|
netif_carrier_off(ndev);
|
|
|
|
err = register_netdev(ndev);
|
|
if (err != 0) {
|
|
printk(KERN_ERR DRV_MODULE_NAME
|
|
": %s register_netdev failed.\n", ndev->name);
|
|
goto err;
|
|
}
|
|
registered = 1;
|
|
|
|
|
|
return ndev;
|
|
|
|
err:
|
|
if (ndev != NULL) {
|
|
if (registered)
|
|
unregister_netdev(ndev);
|
|
|
|
if (fep != NULL) {
|
|
(*fep->ops->free_bd)(ndev);
|
|
(*fep->ops->cleanup_data)(ndev);
|
|
}
|
|
|
|
free_netdev(ndev);
|
|
}
|
|
|
|
dev_set_drvdata(dev, NULL);
|
|
|
|
return ERR_PTR(err);
|
|
}
|
|
|
|
static int fs_cleanup_instance(struct net_device *ndev)
|
|
{
|
|
struct fs_enet_private *fep;
|
|
const struct fs_platform_info *fpi;
|
|
struct device *dev;
|
|
|
|
if (ndev == NULL)
|
|
return -EINVAL;
|
|
|
|
fep = netdev_priv(ndev);
|
|
if (fep == NULL)
|
|
return -EINVAL;
|
|
|
|
fpi = fep->fpi;
|
|
|
|
unregister_netdev(ndev);
|
|
|
|
dma_free_coherent(fep->dev, (fpi->tx_ring + fpi->rx_ring) * sizeof(cbd_t),
|
|
(void __force *)fep->ring_base, fep->ring_mem_addr);
|
|
|
|
/* reset it */
|
|
(*fep->ops->cleanup_data)(ndev);
|
|
|
|
dev = fep->dev;
|
|
if (dev != NULL) {
|
|
dev_set_drvdata(dev, NULL);
|
|
fep->dev = NULL;
|
|
}
|
|
|
|
free_netdev(ndev);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
/**************************************************************************************/
|
|
|
|
/* handy pointer to the immap */
|
|
void __iomem *fs_enet_immap = NULL;
|
|
|
|
static int setup_immap(void)
|
|
{
|
|
#ifdef CONFIG_CPM1
|
|
fs_enet_immap = ioremap(IMAP_ADDR, 0x4000);
|
|
WARN_ON(!fs_enet_immap);
|
|
#elif defined(CONFIG_CPM2)
|
|
fs_enet_immap = cpm2_immr;
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void cleanup_immap(void)
|
|
{
|
|
#if defined(CONFIG_CPM1)
|
|
iounmap(fs_enet_immap);
|
|
#endif
|
|
}
|
|
|
|
/**************************************************************************************/
|
|
|
|
#ifdef CONFIG_PPC_CPM_NEW_BINDING
|
|
static int __devinit find_phy(struct device_node *np,
|
|
struct fs_platform_info *fpi)
|
|
{
|
|
struct device_node *phynode, *mdionode;
|
|
struct resource res;
|
|
int ret = 0, len;
|
|
const u32 *data;
|
|
|
|
data = of_get_property(np, "fixed-link", NULL);
|
|
if (data) {
|
|
snprintf(fpi->bus_id, 16, "%x:%02x", 0, *data);
|
|
return 0;
|
|
}
|
|
|
|
data = of_get_property(np, "phy-handle", &len);
|
|
if (!data || len != 4)
|
|
return -EINVAL;
|
|
|
|
phynode = of_find_node_by_phandle(*data);
|
|
if (!phynode)
|
|
return -EINVAL;
|
|
|
|
mdionode = of_get_parent(phynode);
|
|
if (!mdionode)
|
|
goto out_put_phy;
|
|
|
|
ret = of_address_to_resource(mdionode, 0, &res);
|
|
if (ret)
|
|
goto out_put_mdio;
|
|
|
|
data = of_get_property(phynode, "reg", &len);
|
|
if (!data || len != 4)
|
|
goto out_put_mdio;
|
|
|
|
snprintf(fpi->bus_id, 16, "%x:%02x", res.start, *data);
|
|
|
|
out_put_mdio:
|
|
of_node_put(mdionode);
|
|
out_put_phy:
|
|
of_node_put(phynode);
|
|
return ret;
|
|
}
|
|
|
|
#ifdef CONFIG_FS_ENET_HAS_FEC
|
|
#define IS_FEC(match) ((match)->data == &fs_fec_ops)
|
|
#else
|
|
#define IS_FEC(match) 0
|
|
#endif
|
|
|
|
static int __devinit fs_enet_probe(struct of_device *ofdev,
|
|
const struct of_device_id *match)
|
|
{
|
|
struct net_device *ndev;
|
|
struct fs_enet_private *fep;
|
|
struct fs_platform_info *fpi;
|
|
const u32 *data;
|
|
const u8 *mac_addr;
|
|
int privsize, len, ret = -ENODEV;
|
|
|
|
fpi = kzalloc(sizeof(*fpi), GFP_KERNEL);
|
|
if (!fpi)
|
|
return -ENOMEM;
|
|
|
|
if (!IS_FEC(match)) {
|
|
data = of_get_property(ofdev->node, "fsl,cpm-command", &len);
|
|
if (!data || len != 4)
|
|
goto out_free_fpi;
|
|
|
|
fpi->cp_command = *data;
|
|
}
|
|
|
|
fpi->rx_ring = 32;
|
|
fpi->tx_ring = 32;
|
|
fpi->rx_copybreak = 240;
|
|
fpi->use_napi = 1;
|
|
fpi->napi_weight = 17;
|
|
|
|
ret = find_phy(ofdev->node, fpi);
|
|
if (ret)
|
|
goto out_free_fpi;
|
|
|
|
privsize = sizeof(*fep) +
|
|
sizeof(struct sk_buff **) *
|
|
(fpi->rx_ring + fpi->tx_ring);
|
|
|
|
ndev = alloc_etherdev(privsize);
|
|
if (!ndev) {
|
|
ret = -ENOMEM;
|
|
goto out_free_fpi;
|
|
}
|
|
|
|
dev_set_drvdata(&ofdev->dev, ndev);
|
|
|
|
fep = netdev_priv(ndev);
|
|
fep->dev = &ofdev->dev;
|
|
fep->ndev = ndev;
|
|
fep->fpi = fpi;
|
|
fep->ops = match->data;
|
|
|
|
ret = fep->ops->setup_data(ndev);
|
|
if (ret)
|
|
goto out_free_dev;
|
|
|
|
fep->rx_skbuff = (struct sk_buff **)&fep[1];
|
|
fep->tx_skbuff = fep->rx_skbuff + fpi->rx_ring;
|
|
|
|
spin_lock_init(&fep->lock);
|
|
spin_lock_init(&fep->tx_lock);
|
|
|
|
mac_addr = of_get_mac_address(ofdev->node);
|
|
if (mac_addr)
|
|
memcpy(ndev->dev_addr, mac_addr, 6);
|
|
|
|
ret = fep->ops->allocate_bd(ndev);
|
|
if (ret)
|
|
goto out_cleanup_data;
|
|
|
|
fep->rx_bd_base = fep->ring_base;
|
|
fep->tx_bd_base = fep->rx_bd_base + fpi->rx_ring;
|
|
|
|
fep->tx_ring = fpi->tx_ring;
|
|
fep->rx_ring = fpi->rx_ring;
|
|
|
|
ndev->open = fs_enet_open;
|
|
ndev->hard_start_xmit = fs_enet_start_xmit;
|
|
ndev->tx_timeout = fs_timeout;
|
|
ndev->watchdog_timeo = 2 * HZ;
|
|
ndev->stop = fs_enet_close;
|
|
ndev->get_stats = fs_enet_get_stats;
|
|
ndev->set_multicast_list = fs_set_multicast_list;
|
|
|
|
if (fpi->use_napi)
|
|
netif_napi_add(ndev, &fep->napi, fs_enet_rx_napi,
|
|
fpi->napi_weight);
|
|
|
|
ndev->ethtool_ops = &fs_ethtool_ops;
|
|
ndev->do_ioctl = fs_ioctl;
|
|
|
|
init_timer(&fep->phy_timer_list);
|
|
|
|
netif_carrier_off(ndev);
|
|
|
|
ret = register_netdev(ndev);
|
|
if (ret)
|
|
goto out_free_bd;
|
|
|
|
printk(KERN_INFO "%s: fs_enet: %02x:%02x:%02x:%02x:%02x:%02x\n",
|
|
ndev->name,
|
|
ndev->dev_addr[0], ndev->dev_addr[1], ndev->dev_addr[2],
|
|
ndev->dev_addr[3], ndev->dev_addr[4], ndev->dev_addr[5]);
|
|
|
|
return 0;
|
|
|
|
out_free_bd:
|
|
fep->ops->free_bd(ndev);
|
|
out_cleanup_data:
|
|
fep->ops->cleanup_data(ndev);
|
|
out_free_dev:
|
|
free_netdev(ndev);
|
|
dev_set_drvdata(&ofdev->dev, NULL);
|
|
out_free_fpi:
|
|
kfree(fpi);
|
|
return ret;
|
|
}
|
|
|
|
static int fs_enet_remove(struct of_device *ofdev)
|
|
{
|
|
struct net_device *ndev = dev_get_drvdata(&ofdev->dev);
|
|
struct fs_enet_private *fep = netdev_priv(ndev);
|
|
|
|
unregister_netdev(ndev);
|
|
|
|
fep->ops->free_bd(ndev);
|
|
fep->ops->cleanup_data(ndev);
|
|
dev_set_drvdata(fep->dev, NULL);
|
|
|
|
free_netdev(ndev);
|
|
return 0;
|
|
}
|
|
|
|
static struct of_device_id fs_enet_match[] = {
|
|
#ifdef CONFIG_FS_ENET_HAS_SCC
|
|
{
|
|
.compatible = "fsl,cpm1-scc-enet",
|
|
.data = (void *)&fs_scc_ops,
|
|
},
|
|
#endif
|
|
#ifdef CONFIG_FS_ENET_HAS_FCC
|
|
{
|
|
.compatible = "fsl,cpm2-fcc-enet",
|
|
.data = (void *)&fs_fcc_ops,
|
|
},
|
|
#endif
|
|
#ifdef CONFIG_FS_ENET_HAS_FEC
|
|
{
|
|
.compatible = "fsl,pq1-fec-enet",
|
|
.data = (void *)&fs_fec_ops,
|
|
},
|
|
#endif
|
|
{}
|
|
};
|
|
|
|
static struct of_platform_driver fs_enet_driver = {
|
|
.name = "fs_enet",
|
|
.match_table = fs_enet_match,
|
|
.probe = fs_enet_probe,
|
|
.remove = fs_enet_remove,
|
|
};
|
|
|
|
static int __init fs_init(void)
|
|
{
|
|
int r = setup_immap();
|
|
if (r != 0)
|
|
return r;
|
|
|
|
r = of_register_platform_driver(&fs_enet_driver);
|
|
if (r != 0)
|
|
goto out;
|
|
|
|
return 0;
|
|
|
|
out:
|
|
cleanup_immap();
|
|
return r;
|
|
}
|
|
|
|
static void __exit fs_cleanup(void)
|
|
{
|
|
of_unregister_platform_driver(&fs_enet_driver);
|
|
cleanup_immap();
|
|
}
|
|
#else
|
|
static int __devinit fs_enet_probe(struct device *dev)
|
|
{
|
|
struct net_device *ndev;
|
|
|
|
/* no fixup - no device */
|
|
if (dev->platform_data == NULL) {
|
|
printk(KERN_INFO "fs_enet: "
|
|
"probe called with no platform data; "
|
|
"remove unused devices\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
ndev = fs_init_instance(dev, dev->platform_data);
|
|
if (IS_ERR(ndev))
|
|
return PTR_ERR(ndev);
|
|
return 0;
|
|
}
|
|
|
|
static int fs_enet_remove(struct device *dev)
|
|
{
|
|
return fs_cleanup_instance(dev_get_drvdata(dev));
|
|
}
|
|
|
|
static struct device_driver fs_enet_fec_driver = {
|
|
.name = "fsl-cpm-fec",
|
|
.bus = &platform_bus_type,
|
|
.probe = fs_enet_probe,
|
|
.remove = fs_enet_remove,
|
|
#ifdef CONFIG_PM
|
|
/* .suspend = fs_enet_suspend, TODO */
|
|
/* .resume = fs_enet_resume, TODO */
|
|
#endif
|
|
};
|
|
|
|
static struct device_driver fs_enet_scc_driver = {
|
|
.name = "fsl-cpm-scc",
|
|
.bus = &platform_bus_type,
|
|
.probe = fs_enet_probe,
|
|
.remove = fs_enet_remove,
|
|
#ifdef CONFIG_PM
|
|
/* .suspend = fs_enet_suspend, TODO */
|
|
/* .resume = fs_enet_resume, TODO */
|
|
#endif
|
|
};
|
|
|
|
static struct device_driver fs_enet_fcc_driver = {
|
|
.name = "fsl-cpm-fcc",
|
|
.bus = &platform_bus_type,
|
|
.probe = fs_enet_probe,
|
|
.remove = fs_enet_remove,
|
|
#ifdef CONFIG_PM
|
|
/* .suspend = fs_enet_suspend, TODO */
|
|
/* .resume = fs_enet_resume, TODO */
|
|
#endif
|
|
};
|
|
|
|
static int __init fs_init(void)
|
|
{
|
|
int r;
|
|
|
|
printk(KERN_INFO
|
|
"%s", version);
|
|
|
|
r = setup_immap();
|
|
if (r != 0)
|
|
return r;
|
|
|
|
#ifdef CONFIG_FS_ENET_HAS_FCC
|
|
/* let's insert mii stuff */
|
|
r = fs_enet_mdio_bb_init();
|
|
|
|
if (r != 0) {
|
|
printk(KERN_ERR DRV_MODULE_NAME
|
|
"BB PHY init failed.\n");
|
|
return r;
|
|
}
|
|
r = driver_register(&fs_enet_fcc_driver);
|
|
if (r != 0)
|
|
goto err;
|
|
#endif
|
|
|
|
#ifdef CONFIG_FS_ENET_HAS_FEC
|
|
r = fs_enet_mdio_fec_init();
|
|
if (r != 0) {
|
|
printk(KERN_ERR DRV_MODULE_NAME
|
|
"FEC PHY init failed.\n");
|
|
return r;
|
|
}
|
|
|
|
r = driver_register(&fs_enet_fec_driver);
|
|
if (r != 0)
|
|
goto err;
|
|
#endif
|
|
|
|
#ifdef CONFIG_FS_ENET_HAS_SCC
|
|
r = driver_register(&fs_enet_scc_driver);
|
|
if (r != 0)
|
|
goto err;
|
|
#endif
|
|
|
|
return 0;
|
|
err:
|
|
cleanup_immap();
|
|
return r;
|
|
}
|
|
|
|
static void __exit fs_cleanup(void)
|
|
{
|
|
driver_unregister(&fs_enet_fec_driver);
|
|
driver_unregister(&fs_enet_fcc_driver);
|
|
driver_unregister(&fs_enet_scc_driver);
|
|
cleanup_immap();
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
static void fs_enet_netpoll(struct net_device *dev)
|
|
{
|
|
disable_irq(dev->irq);
|
|
fs_enet_interrupt(dev->irq, dev, NULL);
|
|
enable_irq(dev->irq);
|
|
}
|
|
#endif
|
|
|
|
/**************************************************************************************/
|
|
|
|
module_init(fs_init);
|
|
module_exit(fs_cleanup);
|