+++ /dev/null
-#ifndef FEC_8XX_H
-#define FEC_8XX_H
-
-#include <linux/mii.h>
-#include <linux/netdevice.h>
-
-#include <linux/types.h>
-
-/* HW info */
-
-/* CRC polynomium used by the FEC for the multicast group filtering */
-#define FEC_CRC_POLY 0x04C11DB7
-
-#define MII_ADVERTISE_HALF (ADVERTISE_100HALF | \
- ADVERTISE_10HALF | ADVERTISE_CSMA)
-#define MII_ADVERTISE_ALL (ADVERTISE_100FULL | \
- ADVERTISE_10FULL | MII_ADVERTISE_HALF)
-
-/* Interrupt events/masks.
-*/
-#define FEC_ENET_HBERR 0x80000000U /* Heartbeat error */
-#define FEC_ENET_BABR 0x40000000U /* Babbling receiver */
-#define FEC_ENET_BABT 0x20000000U /* Babbling transmitter */
-#define FEC_ENET_GRA 0x10000000U /* Graceful stop complete */
-#define FEC_ENET_TXF 0x08000000U /* Full frame transmitted */
-#define FEC_ENET_TXB 0x04000000U /* A buffer was transmitted */
-#define FEC_ENET_RXF 0x02000000U /* Full frame received */
-#define FEC_ENET_RXB 0x01000000U /* A buffer was received */
-#define FEC_ENET_MII 0x00800000U /* MII interrupt */
-#define FEC_ENET_EBERR 0x00400000U /* SDMA bus error */
-
-#define FEC_ECNTRL_PINMUX 0x00000004
-#define FEC_ECNTRL_ETHER_EN 0x00000002
-#define FEC_ECNTRL_RESET 0x00000001
-
-#define FEC_RCNTRL_BC_REJ 0x00000010
-#define FEC_RCNTRL_PROM 0x00000008
-#define FEC_RCNTRL_MII_MODE 0x00000004
-#define FEC_RCNTRL_DRT 0x00000002
-#define FEC_RCNTRL_LOOP 0x00000001
-
-#define FEC_TCNTRL_FDEN 0x00000004
-#define FEC_TCNTRL_HBC 0x00000002
-#define FEC_TCNTRL_GTS 0x00000001
-
-/* values for MII phy_status */
-
-#define PHY_CONF_ANE 0x0001 /* 1 auto-negotiation enabled */
-#define PHY_CONF_LOOP 0x0002 /* 1 loopback mode enabled */
-#define PHY_CONF_SPMASK 0x00f0 /* mask for speed */
-#define PHY_CONF_10HDX 0x0010 /* 10 Mbit half duplex supported */
-#define PHY_CONF_10FDX 0x0020 /* 10 Mbit full duplex supported */
-#define PHY_CONF_100HDX 0x0040 /* 100 Mbit half duplex supported */
-#define PHY_CONF_100FDX 0x0080 /* 100 Mbit full duplex supported */
-
-#define PHY_STAT_LINK 0x0100 /* 1 up - 0 down */
-#define PHY_STAT_FAULT 0x0200 /* 1 remote fault */
-#define PHY_STAT_ANC 0x0400 /* 1 auto-negotiation complete */
-#define PHY_STAT_SPMASK 0xf000 /* mask for speed */
-#define PHY_STAT_10HDX 0x1000 /* 10 Mbit half duplex selected */
-#define PHY_STAT_10FDX 0x2000 /* 10 Mbit full duplex selected */
-#define PHY_STAT_100HDX 0x4000 /* 100 Mbit half duplex selected */
-#define PHY_STAT_100FDX 0x8000 /* 100 Mbit full duplex selected */
-
-typedef struct phy_info {
- unsigned int id;
- const char *name;
- void (*startup) (struct net_device * dev);
- void (*shutdown) (struct net_device * dev);
- void (*ack_int) (struct net_device * dev);
-} phy_info_t;
-
-/* The FEC stores dest/src/type, data, and checksum for receive packets.
- */
-#define MAX_MTU 1508 /* Allow fullsized pppoe packets over VLAN */
-#define MIN_MTU 46 /* this is data size */
-#define CRC_LEN 4
-
-#define PKT_MAXBUF_SIZE (MAX_MTU+ETH_HLEN+CRC_LEN)
-#define PKT_MINBUF_SIZE (MIN_MTU+ETH_HLEN+CRC_LEN)
-
-/* Must be a multiple of 4 */
-#define PKT_MAXBLR_SIZE ((PKT_MAXBUF_SIZE+3) & ~3)
-/* This is needed so that invalidate_xxx wont invalidate too much */
-#define ENET_RX_FRSIZE L1_CACHE_ALIGN(PKT_MAXBUF_SIZE)
-
-/* platform interface */
-
-struct fec_platform_info {
- int fec_no; /* FEC index */
- int use_mdio; /* use external MII */
- int phy_addr; /* the phy address */
- int fec_irq, phy_irq; /* the irq for the controller */
- int rx_ring, tx_ring; /* number of buffers on rx */
- int sys_clk; /* system clock */
- __u8 macaddr[6]; /* mac address */
- int rx_copybreak; /* limit we copy small frames */
- int use_napi; /* use NAPI */
- int napi_weight; /* NAPI weight */
-};
-
-/* forward declaration */
-struct fec;
-
-struct fec_enet_private {
- spinlock_t lock; /* during all ops except TX pckt processing */
- spinlock_t tx_lock; /* during fec_start_xmit and fec_tx */
- struct net_device *dev;
- struct napi_struct napi;
- int fecno;
- struct fec *fecp;
- const struct fec_platform_info *fpi;
- int rx_ring, tx_ring;
- dma_addr_t ring_mem_addr;
- void *ring_base;
- struct sk_buff **rx_skbuff;
- struct sk_buff **tx_skbuff;
- cbd_t *rx_bd_base; /* Address of Rx and Tx buffers. */
- cbd_t *tx_bd_base;
- cbd_t *dirty_tx; /* ring entries to be free()ed. */
- cbd_t *cur_rx;
- cbd_t *cur_tx;
- int tx_free;
- struct net_device_stats stats;
- struct timer_list phy_timer_list;
- const struct phy_info *phy;
- unsigned int fec_phy_speed;
- __u32 msg_enable;
- struct mii_if_info mii_if;
-};
-
-/***************************************************************************/
-
-void fec_restart(struct net_device *dev, int duplex, int speed);
-void fec_stop(struct net_device *dev);
-
-/***************************************************************************/
-
-int fec_mii_read(struct net_device *dev, int phy_id, int location);
-void fec_mii_write(struct net_device *dev, int phy_id, int location, int value);
-
-int fec_mii_phy_id_detect(struct net_device *dev);
-void fec_mii_startup(struct net_device *dev);
-void fec_mii_shutdown(struct net_device *dev);
-void fec_mii_ack_int(struct net_device *dev);
-
-void fec_mii_link_status_change_check(struct net_device *dev, int init_media);
-
-/***************************************************************************/
-
-#define FEC1_NO 0x00
-#define FEC2_NO 0x01
-#define FEC3_NO 0x02
-
-int fec_8xx_init_one(const struct fec_platform_info *fpi,
- struct net_device **devp);
-int fec_8xx_cleanup_one(struct net_device *dev);
-
-/***************************************************************************/
-
-#define DRV_MODULE_NAME "fec_8xx"
-#define PFX DRV_MODULE_NAME ": "
-#define DRV_MODULE_VERSION "0.1"
-#define DRV_MODULE_RELDATE "May 6, 2004"
-
-/***************************************************************************/
-
-int fec_8xx_platform_init(void);
-void fec_8xx_platform_cleanup(void);
-
-/***************************************************************************/
-
-/* FEC access macros */
-#if defined(CONFIG_8xx)
-/* for a 8xx __raw_xxx's are sufficient */
-#define __fec_out32(addr, x) __raw_writel(x, addr)
-#define __fec_out16(addr, x) __raw_writew(x, addr)
-#define __fec_in32(addr) __raw_readl(addr)
-#define __fec_in16(addr) __raw_readw(addr)
-#else
-/* for others play it safe */
-#define __fec_out32(addr, x) out_be32(addr, x)
-#define __fec_out16(addr, x) out_be16(addr, x)
-#define __fec_in32(addr) in_be32(addr)
-#define __fec_in16(addr) in_be16(addr)
-#endif
-
-/* write */
-#define FW(_fecp, _reg, _v) __fec_out32(&(_fecp)->fec_ ## _reg, (_v))
-
-/* read */
-#define FR(_fecp, _reg) __fec_in32(&(_fecp)->fec_ ## _reg)
-
-/* set bits */
-#define FS(_fecp, _reg, _v) FW(_fecp, _reg, FR(_fecp, _reg) | (_v))
-
-/* clear bits */
-#define FC(_fecp, _reg, _v) FW(_fecp, _reg, FR(_fecp, _reg) & ~(_v))
-
-/* buffer descriptor access macros */
-
-/* write */
-#define CBDW_SC(_cbd, _sc) __fec_out16(&(_cbd)->cbd_sc, (_sc))
-#define CBDW_DATLEN(_cbd, _datlen) __fec_out16(&(_cbd)->cbd_datlen, (_datlen))
-#define CBDW_BUFADDR(_cbd, _bufaddr) __fec_out32(&(_cbd)->cbd_bufaddr, (_bufaddr))
-
-/* read */
-#define CBDR_SC(_cbd) __fec_in16(&(_cbd)->cbd_sc)
-#define CBDR_DATLEN(_cbd) __fec_in16(&(_cbd)->cbd_datlen)
-#define CBDR_BUFADDR(_cbd) __fec_in32(&(_cbd)->cbd_bufaddr)
-
-/* set bits */
-#define CBDS_SC(_cbd, _sc) CBDW_SC(_cbd, CBDR_SC(_cbd) | (_sc))
-
-/* clear bits */
-#define CBDC_SC(_cbd, _sc) CBDW_SC(_cbd, CBDR_SC(_cbd) & ~(_sc))
-
-/***************************************************************************/
-
-#endif
+++ /dev/null
-/*
- * Fast Ethernet Controller (FEC) driver for Motorola MPC8xx.
- *
- * Copyright (c) 2003 Intracom S.A.
- * by Pantelis Antoniou <panto@intracom.gr>
- *
- * Heavily based on original FEC driver by Dan Malek <dan@embeddededge.com>
- * and modifications by Joakim Tjernlund <joakim.tjernlund@lumentis.se>
- *
- * Released under the GPL
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/ptrace.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/spinlock.h>
-#include <linux/mii.h>
-#include <linux/ethtool.h>
-#include <linux/bitops.h>
-#include <linux/dma-mapping.h>
-
-#include <asm/8xx_immap.h>
-#include <asm/pgtable.h>
-#include <asm/mpc8xx.h>
-#include <asm/irq.h>
-#include <asm/uaccess.h>
-#include <asm/cpm1.h>
-
-#include "fec_8xx.h"
-
-/*************************************************/
-
-#define FEC_MAX_MULTICAST_ADDRS 64
-
-/*************************************************/
-
-static char version[] __devinitdata =
- DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")" "\n";
-
-MODULE_AUTHOR("Pantelis Antoniou <panto@intracom.gr>");
-MODULE_DESCRIPTION("Motorola 8xx FEC ethernet driver");
-MODULE_LICENSE("GPL");
-
-int fec_8xx_debug = -1; /* -1 == use FEC_8XX_DEF_MSG_ENABLE as value */
-module_param(fec_8xx_debug, int, 0);
-MODULE_PARM_DESC(fec_8xx_debug,
- "FEC 8xx bitmapped debugging message enable value");
-
-
-/*************************************************/
-
-/*
- * Delay to wait for FEC reset command to complete (in us)
- */
-#define FEC_RESET_DELAY 50
-
-/*****************************************************************************************/
-
-static void fec_whack_reset(fec_t * fecp)
-{
- int i;
-
- /*
- * Whack a reset. We should wait for this.
- */
- FW(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_RESET);
- for (i = 0;
- (FR(fecp, ecntrl) & FEC_ECNTRL_RESET) != 0 && i < FEC_RESET_DELAY;
- i++)
- udelay(1);
-
- if (i == FEC_RESET_DELAY)
- printk(KERN_WARNING "FEC Reset timeout!\n");
-
-}
-
-/****************************************************************************/
-
-/*
- * Transmitter timeout.
- */
-#define TX_TIMEOUT (2*HZ)
-
-/****************************************************************************/
-
-/*
- * Returns the CRC needed when filling in the hash table for
- * multicast group filtering
- * pAddr must point to a MAC address (6 bytes)
- */
-static __u32 fec_mulicast_calc_crc(char *pAddr)
-{
- u8 byte;
- int byte_count;
- int bit_count;
- __u32 crc = 0xffffffff;
- u8 msb;
-
- for (byte_count = 0; byte_count < 6; byte_count++) {
- byte = pAddr[byte_count];
- for (bit_count = 0; bit_count < 8; bit_count++) {
- msb = crc >> 31;
- crc <<= 1;
- if (msb ^ (byte & 0x1)) {
- crc ^= FEC_CRC_POLY;
- }
- byte >>= 1;
- }
- }
- return (crc);
-}
-
-/*
- * Set or clear the multicast filter for this adaptor.
- * Skeleton taken from sunlance driver.
- * The CPM Ethernet implementation allows Multicast as well as individual
- * MAC address filtering. Some of the drivers check to make sure it is
- * a group multicast address, and discard those that are not. I guess I
- * will do the same for now, but just remove the test if you want
- * individual filtering as well (do the upper net layers want or support
- * this kind of feature?).
- */
-static void fec_set_multicast_list(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- fec_t *fecp = fep->fecp;
- struct dev_mc_list *pmc;
- __u32 crc;
- int temp;
- __u32 csrVal;
- int hash_index;
- __u32 hthi, htlo;
- unsigned long flags;
-
-
- if ((dev->flags & IFF_PROMISC) != 0) {
-
- spin_lock_irqsave(&fep->lock, flags);
- FS(fecp, r_cntrl, FEC_RCNTRL_PROM);
- spin_unlock_irqrestore(&fep->lock, flags);
-
- /*
- * Log any net taps.
- */
- printk(KERN_WARNING DRV_MODULE_NAME
- ": %s: Promiscuous mode enabled.\n", dev->name);
- return;
-
- }
-
- if ((dev->flags & IFF_ALLMULTI) != 0 ||
- dev->mc_count > FEC_MAX_MULTICAST_ADDRS) {
- /*
- * Catch all multicast addresses, set the filter to all 1's.
- */
- hthi = 0xffffffffU;
- htlo = 0xffffffffU;
- } else {
- hthi = 0;
- htlo = 0;
-
- /*
- * Now populate the hash table
- */
- for (pmc = dev->mc_list; pmc != NULL; pmc = pmc->next) {
- crc = fec_mulicast_calc_crc(pmc->dmi_addr);
- temp = (crc & 0x3f) >> 1;
- hash_index = ((temp & 0x01) << 4) |
- ((temp & 0x02) << 2) |
- ((temp & 0x04)) |
- ((temp & 0x08) >> 2) |
- ((temp & 0x10) >> 4);
- csrVal = (1 << hash_index);
- if (crc & 1)
- hthi |= csrVal;
- else
- htlo |= csrVal;
- }
- }
-
- spin_lock_irqsave(&fep->lock, flags);
- FC(fecp, r_cntrl, FEC_RCNTRL_PROM);
- FW(fecp, hash_table_high, hthi);
- FW(fecp, hash_table_low, htlo);
- spin_unlock_irqrestore(&fep->lock, flags);
-}
-
-static int fec_set_mac_address(struct net_device *dev, void *addr)
-{
- struct sockaddr *mac = addr;
- struct fec_enet_private *fep = netdev_priv(dev);
- struct fec *fecp = fep->fecp;
- int i;
- __u32 addrhi, addrlo;
- unsigned long flags;
-
- /* Get pointer to SCC area in parameter RAM. */
- for (i = 0; i < 6; i++)
- dev->dev_addr[i] = mac->sa_data[i];
-
- /*
- * Set station address.
- */
- addrhi = ((__u32) dev->dev_addr[0] << 24) |
- ((__u32) dev->dev_addr[1] << 16) |
- ((__u32) dev->dev_addr[2] << 8) |
- (__u32) dev->dev_addr[3];
- addrlo = ((__u32) dev->dev_addr[4] << 24) |
- ((__u32) dev->dev_addr[5] << 16);
-
- spin_lock_irqsave(&fep->lock, flags);
- FW(fecp, addr_low, addrhi);
- FW(fecp, addr_high, addrlo);
- spin_unlock_irqrestore(&fep->lock, flags);
-
- return 0;
-}
-
-/*
- * This function is called to start or restart the FEC during a link
- * change. This only happens when switching between half and full
- * duplex.
- */
-void fec_restart(struct net_device *dev, int duplex, int speed)
-{
-#ifdef CONFIG_DUET
- immap_t *immap = (immap_t *) IMAP_ADDR;
- __u32 cptr;
-#endif
- struct fec_enet_private *fep = netdev_priv(dev);
- struct fec *fecp = fep->fecp;
- const struct fec_platform_info *fpi = fep->fpi;
- cbd_t *bdp;
- struct sk_buff *skb;
- int i;
- __u32 addrhi, addrlo;
-
- fec_whack_reset(fep->fecp);
-
- /*
- * Set station address.
- */
- addrhi = ((__u32) dev->dev_addr[0] << 24) |
- ((__u32) dev->dev_addr[1] << 16) |
- ((__u32) dev->dev_addr[2] << 8) |
- (__u32) dev->dev_addr[3];
- addrlo = ((__u32) dev->dev_addr[4] << 24) |
- ((__u32) dev->dev_addr[5] << 16);
- FW(fecp, addr_low, addrhi);
- FW(fecp, addr_high, addrlo);
-
- /*
- * Reset all multicast.
- */
- FW(fecp, hash_table_high, 0);
- FW(fecp, hash_table_low, 0);
-
- /*
- * Set maximum receive buffer size.
- */
- FW(fecp, r_buff_size, PKT_MAXBLR_SIZE);
- FW(fecp, r_hash, PKT_MAXBUF_SIZE);
-
- /*
- * Set receive and transmit descriptor base.
- */
- FW(fecp, r_des_start, iopa((__u32) (fep->rx_bd_base)));
- FW(fecp, x_des_start, iopa((__u32) (fep->tx_bd_base)));
-
- fep->dirty_tx = fep->cur_tx = fep->tx_bd_base;
- fep->tx_free = fep->tx_ring;
- fep->cur_rx = fep->rx_bd_base;
-
- /*
- * Reset SKB receive buffers
- */
- for (i = 0; i < fep->rx_ring; i++) {
- if ((skb = fep->rx_skbuff[i]) == NULL)
- continue;
- fep->rx_skbuff[i] = NULL;
- dev_kfree_skb(skb);
- }
-
- /*
- * 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);
- fep->stats.rx_dropped++;
- break;
- }
- fep->rx_skbuff[i] = skb;
- skb->dev = dev;
- CBDW_BUFADDR(bdp, dma_map_single(NULL, 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);
- }
-
- /*
- * Reset SKB transmit buffers.
- */
- for (i = 0; i < fep->tx_ring; i++) {
- if ((skb = fep->tx_skbuff[i]) == NULL)
- continue;
- fep->tx_skbuff[i] = NULL;
- dev_kfree_skb(skb);
- }
-
- /*
- * ...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, virt_to_bus(NULL));
- CBDW_DATLEN(bdp, 0);
- CBDW_SC(bdp, (i < fep->tx_ring - 1) ? 0 : BD_SC_WRAP);
- }
-
- /*
- * Enable big endian and don't care about SDMA FC.
- */
- FW(fecp, fun_code, 0x78000000);
-
- /*
- * Set MII speed.
- */
- FW(fecp, mii_speed, fep->fec_phy_speed);
-
- /*
- * Clear any outstanding interrupt.
- */
- FW(fecp, ievent, 0xffc0);
- FW(fecp, ivec, (fpi->fec_irq / 2) << 29);
-
- /*
- * adjust to speed (only for DUET & RMII)
- */
-#ifdef CONFIG_DUET
- cptr = in_be32(&immap->im_cpm.cp_cptr);
- switch (fpi->fec_no) {
- case 0:
- /*
- * check if in RMII mode
- */
- if ((cptr & 0x100) == 0)
- break;
-
- if (speed == 10)
- cptr |= 0x0000010;
- else if (speed == 100)
- cptr &= ~0x0000010;
- break;
- case 1:
- /*
- * check if in RMII mode
- */
- if ((cptr & 0x80) == 0)
- break;
-
- if (speed == 10)
- cptr |= 0x0000008;
- else if (speed == 100)
- cptr &= ~0x0000008;
- break;
- default:
- break;
- }
- out_be32(&immap->im_cpm.cp_cptr, cptr);
-#endif
-
- FW(fecp, r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */
- /*
- * adjust to duplex mode
- */
- if (duplex) {
- FC(fecp, r_cntrl, FEC_RCNTRL_DRT);
- FS(fecp, x_cntrl, FEC_TCNTRL_FDEN); /* FD enable */
- } else {
- FS(fecp, r_cntrl, FEC_RCNTRL_DRT);
- FC(fecp, x_cntrl, FEC_TCNTRL_FDEN); /* FD disable */
- }
-
- /*
- * Enable interrupts we wish to service.
- */
- FW(fecp, imask, FEC_ENET_TXF | FEC_ENET_TXB |
- FEC_ENET_RXF | FEC_ENET_RXB);
-
- /*
- * And last, enable the transmit and receive processing.
- */
- FW(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN);
- FW(fecp, r_des_active, 0x01000000);
-}
-
-void fec_stop(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- fec_t *fecp = fep->fecp;
- struct sk_buff *skb;
- int i;
-
- if ((FR(fecp, ecntrl) & FEC_ECNTRL_ETHER_EN) == 0)
- return; /* already down */
-
- FW(fecp, x_cntrl, 0x01); /* Graceful transmit stop */
- for (i = 0; ((FR(fecp, ievent) & 0x10000000) == 0) &&
- i < FEC_RESET_DELAY; i++)
- udelay(1);
-
- if (i == FEC_RESET_DELAY)
- printk(KERN_WARNING DRV_MODULE_NAME
- ": %s FEC timeout on graceful transmit stop\n",
- dev->name);
- /*
- * Disable FEC. Let only MII interrupts.
- */
- FW(fecp, imask, 0);
- FW(fecp, ecntrl, ~FEC_ECNTRL_ETHER_EN);
-
- /*
- * Reset SKB transmit buffers.
- */
- for (i = 0; i < fep->tx_ring; i++) {
- if ((skb = fep->tx_skbuff[i]) == NULL)
- continue;
- fep->tx_skbuff[i] = NULL;
- dev_kfree_skb(skb);
- }
-
- /*
- * Reset SKB receive buffers
- */
- for (i = 0; i < fep->rx_ring; i++) {
- if ((skb = fep->rx_skbuff[i]) == NULL)
- continue;
- fep->rx_skbuff[i] = NULL;
- dev_kfree_skb(skb);
- }
-}
-
-/* common receive function */
-static int fec_enet_rx_common(struct fec_enet_private *ep,
- struct net_device *dev, int budget)
-{
- fec_t *fecp = fep->fecp;
- const struct fec_platform_info *fpi = fep->fpi;
- cbd_t *bdp;
- struct sk_buff *skb, *skbn, *skbt;
- int received = 0;
- __u16 pkt_len, sc;
- int curidx;
-
- /*
- * First, grab all of the stats for the incoming packet.
- * These get messed up if we get called due to a busy condition.
- */
- bdp = fep->cur_rx;
-
- /* clear RX status bits for napi*/
- if (fpi->use_napi)
- FW(fecp, ievent, FEC_ENET_RXF | FEC_ENET_RXB);
-
- while (((sc = CBDR_SC(bdp)) & BD_ENET_RX_EMPTY) == 0) {
-
- curidx = bdp - fep->rx_bd_base;
-
- /*
- * Since we have allocated space to hold a complete frame,
- * the last indicator should be set.
- */
- if ((sc & BD_ENET_RX_LAST) == 0)
- printk(KERN_WARNING DRV_MODULE_NAME
- ": %s rcv is not +last\n",
- dev->name);
-
- /*
- * Check for errors.
- */
- if (sc & (BD_ENET_RX_LG | BD_ENET_RX_SH | BD_ENET_RX_CL |
- BD_ENET_RX_NO | BD_ENET_RX_CR | BD_ENET_RX_OV)) {
- fep->stats.rx_errors++;
- /* Frame too long or too short. */
- if (sc & (BD_ENET_RX_LG | BD_ENET_RX_SH))
- fep->stats.rx_length_errors++;
- /* Frame alignment */
- if (sc & (BD_ENET_RX_NO | BD_ENET_RX_CL))
- fep->stats.rx_frame_errors++;
- /* CRC Error */
- if (sc & BD_ENET_RX_CR)
- fep->stats.rx_crc_errors++;
- /* FIFO overrun */
- if (sc & BD_ENET_RX_OV)
- fep->stats.rx_crc_errors++;
-
- skbn = fep->rx_skbuff[curidx];
- BUG_ON(skbn == NULL);
-
- } else {
- skb = fep->rx_skbuff[curidx];
- BUG_ON(skb == NULL);
-
- /*
- * Process the incoming frame.
- */
- fep->stats.rx_packets++;
- pkt_len = CBDR_DATLEN(bdp) - 4; /* remove CRC */
- fep->stats.rx_bytes += pkt_len + 4;
-
- if (pkt_len <= fpi->rx_copybreak) {
- /* +2 to make IP header L1 cache aligned */
- skbn = dev_alloc_skb(pkt_len + 2);
- if (skbn != NULL) {
- skb_reserve(skbn, 2); /* align IP header */
- skb_copy_from_linear_data(skb,
- skbn->data,
- pkt_len);
- /* swap */
- skbt = skb;
- skb = skbn;
- skbn = skbt;
- }
- } else
- skbn = dev_alloc_skb(ENET_RX_FRSIZE);
-
- if (skbn != NULL) {
- skb_put(skb, pkt_len); /* Make room */
- skb->protocol = eth_type_trans(skb, dev);
- received++;
- if (!fpi->use_napi)
- netif_rx(skb);
- else
- netif_receive_skb(skb);
- } else {
- printk(KERN_WARNING DRV_MODULE_NAME
- ": %s Memory squeeze, dropping packet.\n",
- dev->name);
- fep->stats.rx_dropped++;
- skbn = skb;
- }
- }
-
- fep->rx_skbuff[curidx] = skbn;
- CBDW_BUFADDR(bdp, dma_map_single(NULL, skbn->data,
- L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
- DMA_FROM_DEVICE));
- CBDW_DATLEN(bdp, 0);
- CBDW_SC(bdp, (sc & ~BD_ENET_RX_STATS) | BD_ENET_RX_EMPTY);
-
- /*
- * Update BD pointer to next entry.
- */
- if ((sc & BD_ENET_RX_WRAP) == 0)
- bdp++;
- else
- bdp = fep->rx_bd_base;
-
- /*
- * Doing this here will keep the FEC running while we process
- * incoming frames. On a heavily loaded network, we should be
- * able to keep up at the expense of system resources.
- */
- FW(fecp, r_des_active, 0x01000000);
-
- if (received >= budget)
- break;
-
- }
-
- fep->cur_rx = bdp;
-
- if (fpi->use_napi) {
- if (received < budget) {
- netif_rx_complete(dev, &fep->napi);
-
- /* enable RX interrupt bits */
- FS(fecp, imask, FEC_ENET_RXF | FEC_ENET_RXB);
- }
- }
-
- return received;
-}
-
-static void fec_enet_tx(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- cbd_t *bdp;
- struct sk_buff *skb;
- int dirtyidx, do_wake;
- __u16 sc;
-
- spin_lock(&fep->lock);
- bdp = fep->dirty_tx;
-
- do_wake = 0;
- while (((sc = CBDR_SC(bdp)) & BD_ENET_TX_READY) == 0) {
-
- dirtyidx = bdp - fep->tx_bd_base;
-
- if (fep->tx_free == fep->tx_ring)
- break;
-
- skb = fep->tx_skbuff[dirtyidx];
-
- /*
- * Check for errors.
- */
- if (sc & (BD_ENET_TX_HB | BD_ENET_TX_LC |
- BD_ENET_TX_RL | BD_ENET_TX_UN | BD_ENET_TX_CSL)) {
- fep->stats.tx_errors++;
- if (sc & BD_ENET_TX_HB) /* No heartbeat */
- fep->stats.tx_heartbeat_errors++;
- if (sc & BD_ENET_TX_LC) /* Late collision */
- fep->stats.tx_window_errors++;
- if (sc & BD_ENET_TX_RL) /* Retrans limit */
- fep->stats.tx_aborted_errors++;
- if (sc & BD_ENET_TX_UN) /* Underrun */
- fep->stats.tx_fifo_errors++;
- if (sc & BD_ENET_TX_CSL) /* Carrier lost */
- fep->stats.tx_carrier_errors++;
- } else
- fep->stats.tx_packets++;
-
- if (sc & BD_ENET_TX_READY)
- printk(KERN_WARNING DRV_MODULE_NAME
- ": %s HEY! Enet xmit interrupt and TX_READY.\n",
- dev->name);
-
- /*
- * Deferred means some collisions occurred during transmit,
- * but we eventually sent the packet OK.
- */
- if (sc & BD_ENET_TX_DEF)
- fep->stats.collisions++;
-
- /*
- * Free the sk buffer associated with this last transmit.
- */
- dev_kfree_skb_irq(skb);
- fep->tx_skbuff[dirtyidx] = NULL;
-
- /*
- * Update pointer to next buffer descriptor to be transmitted.
- */
- if ((sc & BD_ENET_TX_WRAP) == 0)
- bdp++;
- else
- bdp = fep->tx_bd_base;
-
- /*
- * Since we have freed up a buffer, the ring is no longer
- * full.
- */
- if (!fep->tx_free++)
- do_wake = 1;
- }
-
- fep->dirty_tx = bdp;
-
- spin_unlock(&fep->lock);
-
- if (do_wake && netif_queue_stopped(dev))
- netif_wake_queue(dev);
-}
-
-/*
- * The interrupt handler.
- * This is called from the MPC core interrupt.
- */
-static irqreturn_t
-fec_enet_interrupt(int irq, void *dev_id)
-{
- struct net_device *dev = dev_id;
- struct fec_enet_private *fep;
- const struct fec_platform_info *fpi;
- fec_t *fecp;
- __u32 int_events;
- __u32 int_events_napi;
-
- if (unlikely(dev == NULL))
- return IRQ_NONE;
-
- fep = netdev_priv(dev);
- fecp = fep->fecp;
- fpi = fep->fpi;
-
- /*
- * Get the interrupt events that caused us to be here.
- */
- while ((int_events = FR(fecp, ievent) & FR(fecp, imask)) != 0) {
-
- if (!fpi->use_napi)
- FW(fecp, ievent, int_events);
- else {
- int_events_napi = int_events & ~(FEC_ENET_RXF | FEC_ENET_RXB);
- FW(fecp, ievent, int_events_napi);
- }
-
- if ((int_events & (FEC_ENET_HBERR | FEC_ENET_BABR |
- FEC_ENET_BABT | FEC_ENET_EBERR)) != 0)
- printk(KERN_WARNING DRV_MODULE_NAME
- ": %s FEC ERROR(s) 0x%x\n",
- dev->name, int_events);
-
- if ((int_events & FEC_ENET_RXF) != 0) {
- if (!fpi->use_napi)
- fec_enet_rx_common(fep, dev, ~0);
- else {
- if (netif_rx_schedule_prep(dev, &fep->napi)) {
- /* disable rx interrupts */
- FC(fecp, imask, FEC_ENET_RXF | FEC_ENET_RXB);
- __netif_rx_schedule(dev, &fep->napi);
- } else {
- printk(KERN_ERR DRV_MODULE_NAME
- ": %s driver bug! interrupt while in poll!\n",
- dev->name);
- FC(fecp, imask, FEC_ENET_RXF | FEC_ENET_RXB);
- }
- }
- }
-
- if ((int_events & FEC_ENET_TXF) != 0)
- fec_enet_tx(dev);
- }
-
- return IRQ_HANDLED;
-}
-
-/* This interrupt occurs when the PHY detects a link change. */
-static irqreturn_t
-fec_mii_link_interrupt(int irq, void *dev_id)
-{
- struct net_device *dev = dev_id;
- struct fec_enet_private *fep;
- const struct fec_platform_info *fpi;
-
- if (unlikely(dev == NULL))
- return IRQ_NONE;
-
- fep = netdev_priv(dev);
- fpi = fep->fpi;
-
- if (!fpi->use_mdio)
- return IRQ_NONE;
-
- /*
- * Acknowledge the interrupt if possible. If we have not
- * found the PHY yet we can't process or acknowledge the
- * interrupt now. Instead we ignore this interrupt for now,
- * which we can do since it is edge triggered. It will be
- * acknowledged later by fec_enet_open().
- */
- if (!fep->phy)
- return IRQ_NONE;
-
- fec_mii_ack_int(dev);
- fec_mii_link_status_change_check(dev, 0);
-
- return IRQ_HANDLED;
-}
-
-
-/**********************************************************************************/
-
-static int fec_enet_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- fec_t *fecp = fep->fecp;
- cbd_t *bdp;
- int curidx;
- 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 1;
- }
-
- 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(NULL, 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
- */
- CBDS_SC(bdp, BD_ENET_TX_READY | BD_ENET_TX_INTR |
- BD_ENET_TX_LAST | BD_ENET_TX_TC);
- FW(fecp, x_des_active, 0x01000000);
-
- spin_unlock_irqrestore(&fep->tx_lock, flags);
-
- return 0;
-}
-
-static void fec_timeout(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
-
- fep->stats.tx_errors++;
-
- if (fep->tx_free)
- netif_wake_queue(dev);
-
- /* check link status again */
- fec_mii_link_status_change_check(dev, 0);
-}
-
-static int fec_enet_open(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- const struct fec_platform_info *fpi = fep->fpi;
- unsigned long flags;
-
- napi_enable(&fep->napi);
-
- /* Install our interrupt handler. */
- if (request_irq(fpi->fec_irq, fec_enet_interrupt, 0, "fec", dev) != 0) {
- printk(KERN_ERR DRV_MODULE_NAME
- ": %s Could not allocate FEC IRQ!", dev->name);
- napi_disable(&fep->napi);
- return -EINVAL;
- }
-
- /* Install our phy interrupt handler */
- if (fpi->phy_irq != -1 &&
- request_irq(fpi->phy_irq, fec_mii_link_interrupt, 0, "fec-phy",
- dev) != 0) {
- printk(KERN_ERR DRV_MODULE_NAME
- ": %s Could not allocate PHY IRQ!", dev->name);
- free_irq(fpi->fec_irq, dev);
- napi_disable(&fep->napi);
- return -EINVAL;
- }
-
- if (fpi->use_mdio) {
- fec_mii_startup(dev);
- netif_carrier_off(dev);
- fec_mii_link_status_change_check(dev, 1);
- } else {
- spin_lock_irqsave(&fep->lock, flags);
- fec_restart(dev, 1, 100); /* XXX this sucks */
- spin_unlock_irqrestore(&fep->lock, flags);
-
- netif_carrier_on(dev);
- netif_start_queue(dev);
- }
- return 0;
-}
-
-static int fec_enet_close(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- const struct fec_platform_info *fpi = fep->fpi;
- unsigned long flags;
-
- netif_stop_queue(dev);
- napi_disable(&fep->napi);
- netif_carrier_off(dev);
-
- if (fpi->use_mdio)
- fec_mii_shutdown(dev);
-
- spin_lock_irqsave(&fep->lock, flags);
- fec_stop(dev);
- spin_unlock_irqrestore(&fep->lock, flags);
-
- /* release any irqs */
- if (fpi->phy_irq != -1)
- free_irq(fpi->phy_irq, dev);
- free_irq(fpi->fec_irq, dev);
-
- return 0;
-}
-
-static struct net_device_stats *fec_enet_get_stats(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- return &fep->stats;
-}
-
-static int fec_enet_poll(struct napi_struct *napi, int budget)
-{
- struct fec_enet_private *fep = container_of(napi, struct fec_enet_private, napi);
- struct net_device *dev = fep->dev;
-
- return fec_enet_rx_common(fep, dev, budget);
-}
-
-/*************************************************************************/
-
-static void fec_get_drvinfo(struct net_device *dev,
- struct ethtool_drvinfo *info)
-{
- strcpy(info->driver, DRV_MODULE_NAME);
- strcpy(info->version, DRV_MODULE_VERSION);
-}
-
-static int fec_get_regs_len(struct net_device *dev)
-{
- return sizeof(fec_t);
-}
-
-static void fec_get_regs(struct net_device *dev, struct ethtool_regs *regs,
- void *p)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- unsigned long flags;
-
- if (regs->len < sizeof(fec_t))
- return;
-
- regs->version = 0;
- spin_lock_irqsave(&fep->lock, flags);
- memcpy_fromio(p, fep->fecp, sizeof(fec_t));
- spin_unlock_irqrestore(&fep->lock, flags);
-}
-
-static int fec_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- unsigned long flags;
- int rc;
-
- spin_lock_irqsave(&fep->lock, flags);
- rc = mii_ethtool_gset(&fep->mii_if, cmd);
- spin_unlock_irqrestore(&fep->lock, flags);
-
- return rc;
-}
-
-static int fec_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- unsigned long flags;
- int rc;
-
- spin_lock_irqsave(&fep->lock, flags);
- rc = mii_ethtool_sset(&fep->mii_if, cmd);
- spin_unlock_irqrestore(&fep->lock, flags);
-
- return rc;
-}
-
-static int fec_nway_reset(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- return mii_nway_restart(&fep->mii_if);
-}
-
-static __u32 fec_get_msglevel(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- return fep->msg_enable;
-}
-
-static void fec_set_msglevel(struct net_device *dev, __u32 value)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- fep->msg_enable = value;
-}
-
-static const struct ethtool_ops fec_ethtool_ops = {
- .get_drvinfo = fec_get_drvinfo,
- .get_regs_len = fec_get_regs_len,
- .get_settings = fec_get_settings,
- .set_settings = fec_set_settings,
- .nway_reset = fec_nway_reset,
- .get_link = ethtool_op_get_link,
- .get_msglevel = fec_get_msglevel,
- .set_msglevel = fec_set_msglevel,
- .set_tx_csum = ethtool_op_set_tx_csum, /* local! */
- .set_sg = ethtool_op_set_sg,
- .get_regs = fec_get_regs,
-};
-
-static int fec_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- struct mii_ioctl_data *mii = (struct mii_ioctl_data *)&rq->ifr_data;
- unsigned long flags;
- int rc;
-
- if (!netif_running(dev))
- return -EINVAL;
-
- spin_lock_irqsave(&fep->lock, flags);
- rc = generic_mii_ioctl(&fep->mii_if, mii, cmd, NULL);
- spin_unlock_irqrestore(&fep->lock, flags);
- return rc;
-}
-
-int fec_8xx_init_one(const struct fec_platform_info *fpi,
- struct net_device **devp)
-{
- immap_t *immap = (immap_t *) IMAP_ADDR;
- static int fec_8xx_version_printed = 0;
- struct net_device *dev = NULL;
- struct fec_enet_private *fep = NULL;
- fec_t *fecp = NULL;
- int i;
- int err = 0;
- int registered = 0;
- __u32 siel;
-
- *devp = NULL;
-
- switch (fpi->fec_no) {
- case 0:
- fecp = &((immap_t *) IMAP_ADDR)->im_cpm.cp_fec;
- break;
-#ifdef CONFIG_DUET
- case 1:
- fecp = &((immap_t *) IMAP_ADDR)->im_cpm.cp_fec2;
- break;
-#endif
- default:
- return -EINVAL;
- }
-
- if (fec_8xx_version_printed++ == 0)
- printk(KERN_INFO "%s", version);
-
- i = sizeof(*fep) + (sizeof(struct sk_buff **) *
- (fpi->rx_ring + fpi->tx_ring));
-
- dev = alloc_etherdev(i);
- if (!dev) {
- err = -ENOMEM;
- goto err;
- }
-
- fep = netdev_priv(dev);
- fep->dev = dev;
-
- /* partial reset of FEC */
- fec_whack_reset(fecp);
-
- /* point rx_skbuff, tx_skbuff */
- fep->rx_skbuff = (struct sk_buff **)&fep[1];
- fep->tx_skbuff = fep->rx_skbuff + fpi->rx_ring;
-
- fep->fecp = fecp;
- fep->fpi = fpi;
-
- /* init locks */
- spin_lock_init(&fep->lock);
- spin_lock_init(&fep->tx_lock);
-
- /*
- * Set the Ethernet address.
- */
- for (i = 0; i < 6; i++)
- dev->dev_addr[i] = fpi->macaddr[i];
-
- fep->ring_base = dma_alloc_coherent(NULL,
- (fpi->tx_ring + fpi->rx_ring) *
- sizeof(cbd_t), &fep->ring_mem_addr,
- GFP_KERNEL);
- if (fep->ring_base == NULL) {
- printk(KERN_ERR DRV_MODULE_NAME
- ": %s dma alloc failed.\n", dev->name);
- err = -ENOMEM;
- 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;
-
- /* SIU interrupt */
- if (fpi->phy_irq != -1 &&
- (fpi->phy_irq >= SIU_IRQ0 && fpi->phy_irq < SIU_LEVEL7)) {
-
- siel = in_be32(&immap->im_siu_conf.sc_siel);
- if ((fpi->phy_irq & 1) == 0)
- siel |= (0x80000000 >> fpi->phy_irq);
- else
- siel &= ~(0x80000000 >> (fpi->phy_irq & ~1));
- out_be32(&immap->im_siu_conf.sc_siel, siel);
- }
-
- /*
- * The FEC Ethernet specific entries in the device structure.
- */
- dev->open = fec_enet_open;
- dev->hard_start_xmit = fec_enet_start_xmit;
- dev->tx_timeout = fec_timeout;
- dev->watchdog_timeo = TX_TIMEOUT;
- dev->stop = fec_enet_close;
- dev->get_stats = fec_enet_get_stats;
- dev->set_multicast_list = fec_set_multicast_list;
- dev->set_mac_address = fec_set_mac_address;
- netif_napi_add(dev, &fec->napi,
- fec_enet_poll, fpi->napi_weight);
-
- dev->ethtool_ops = &fec_ethtool_ops;
- dev->do_ioctl = fec_ioctl;
-
- fep->fec_phy_speed =
- ((((fpi->sys_clk + 4999999) / 2500000) / 2) & 0x3F) << 1;
-
- init_timer(&fep->phy_timer_list);
-
- /* partial reset of FEC so that only MII works */
- FW(fecp, mii_speed, fep->fec_phy_speed);
- FW(fecp, ievent, 0xffc0);
- FW(fecp, ivec, (fpi->fec_irq / 2) << 29);
- FW(fecp, imask, 0);
- FW(fecp, r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */
- FW(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN);
-
- netif_carrier_off(dev);
-
- err = register_netdev(dev);
- if (err != 0)
- goto err;
- registered = 1;
-
- if (fpi->use_mdio) {
- fep->mii_if.dev = dev;
- fep->mii_if.mdio_read = fec_mii_read;
- fep->mii_if.mdio_write = fec_mii_write;
- fep->mii_if.phy_id_mask = 0x1f;
- fep->mii_if.reg_num_mask = 0x1f;
- fep->mii_if.phy_id = fec_mii_phy_id_detect(dev);
- }
-
- *devp = dev;
-
- return 0;
-
- err:
- if (dev != NULL) {
- if (fecp != NULL)
- fec_whack_reset(fecp);
-
- if (registered)
- unregister_netdev(dev);
-
- if (fep != NULL) {
- if (fep->ring_base)
- dma_free_coherent(NULL,
- (fpi->tx_ring +
- fpi->rx_ring) *
- sizeof(cbd_t), fep->ring_base,
- fep->ring_mem_addr);
- }
- free_netdev(dev);
- }
- return err;
-}
-
-int fec_8xx_cleanup_one(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- fec_t *fecp = fep->fecp;
- const struct fec_platform_info *fpi = fep->fpi;
-
- fec_whack_reset(fecp);
-
- unregister_netdev(dev);
-
- dma_free_coherent(NULL, (fpi->tx_ring + fpi->rx_ring) * sizeof(cbd_t),
- fep->ring_base, fep->ring_mem_addr);
-
- free_netdev(dev);
-
- return 0;
-}
-
-/**************************************************************************************/
-/**************************************************************************************/
-/**************************************************************************************/
-
-static int __init fec_8xx_init(void)
-{
- return fec_8xx_platform_init();
-}
-
-static void __exit fec_8xx_cleanup(void)
-{
- fec_8xx_platform_cleanup();
-}
-
-/**************************************************************************************/
-/**************************************************************************************/
-/**************************************************************************************/
-
-module_init(fec_8xx_init);
-module_exit(fec_8xx_cleanup);
+++ /dev/null
-/*
- * Fast Ethernet Controller (FEC) driver for Motorola MPC8xx.
- *
- * Copyright (c) 2003 Intracom S.A.
- * by Pantelis Antoniou <panto@intracom.gr>
- *
- * Heavily based on original FEC driver by Dan Malek <dan@embeddededge.com>
- * and modifications by Joakim Tjernlund <joakim.tjernlund@lumentis.se>
- *
- * Released under the GPL
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/ptrace.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/spinlock.h>
-#include <linux/mii.h>
-#include <linux/ethtool.h>
-#include <linux/bitops.h>
-
-#include <asm/8xx_immap.h>
-#include <asm/pgtable.h>
-#include <asm/mpc8xx.h>
-#include <asm/irq.h>
-#include <asm/uaccess.h>
-#include <asm/cpm1.h>
-
-/*************************************************/
-
-#include "fec_8xx.h"
-
-/*************************************************/
-
-/* Make MII read/write commands for the FEC.
-*/
-#define mk_mii_read(REG) (0x60020000 | ((REG & 0x1f) << 18))
-#define mk_mii_write(REG, VAL) (0x50020000 | ((REG & 0x1f) << 18) | (VAL & 0xffff))
-#define mk_mii_end 0
-
-/*************************************************/
-
-/* XXX both FECs use the MII interface of FEC1 */
-static DEFINE_SPINLOCK(fec_mii_lock);
-
-#define FEC_MII_LOOPS 10000
-
-int fec_mii_read(struct net_device *dev, int phy_id, int location)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- fec_t *fecp;
- int i, ret = -1;
- unsigned long flags;
-
- /* XXX MII interface is only connected to FEC1 */
- fecp = &((immap_t *) IMAP_ADDR)->im_cpm.cp_fec;
-
- spin_lock_irqsave(&fec_mii_lock, flags);
-
- if ((FR(fecp, r_cntrl) & FEC_RCNTRL_MII_MODE) == 0) {
- FS(fecp, r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */
- FS(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN);
- FW(fecp, ievent, FEC_ENET_MII);
- }
-
- /* Add PHY address to register command. */
- FW(fecp, mii_speed, fep->fec_phy_speed);
- FW(fecp, mii_data, (phy_id << 23) | mk_mii_read(location));
-
- for (i = 0; i < FEC_MII_LOOPS; i++)
- if ((FR(fecp, ievent) & FEC_ENET_MII) != 0)
- break;
-
- if (i < FEC_MII_LOOPS) {
- FW(fecp, ievent, FEC_ENET_MII);
- ret = FR(fecp, mii_data) & 0xffff;
- }
-
- spin_unlock_irqrestore(&fec_mii_lock, flags);
-
- return ret;
-}
-
-void fec_mii_write(struct net_device *dev, int phy_id, int location, int value)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- fec_t *fecp;
- unsigned long flags;
- int i;
-
- /* XXX MII interface is only connected to FEC1 */
- fecp = &((immap_t *) IMAP_ADDR)->im_cpm.cp_fec;
-
- spin_lock_irqsave(&fec_mii_lock, flags);
-
- if ((FR(fecp, r_cntrl) & FEC_RCNTRL_MII_MODE) == 0) {
- FS(fecp, r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */
- FS(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN);
- FW(fecp, ievent, FEC_ENET_MII);
- }
-
- /* Add PHY address to register command. */
- FW(fecp, mii_speed, fep->fec_phy_speed); /* always adapt mii speed */
- FW(fecp, mii_data, (phy_id << 23) | mk_mii_write(location, value));
-
- for (i = 0; i < FEC_MII_LOOPS; i++)
- if ((FR(fecp, ievent) & FEC_ENET_MII) != 0)
- break;
-
- if (i < FEC_MII_LOOPS)
- FW(fecp, ievent, FEC_ENET_MII);
-
- spin_unlock_irqrestore(&fec_mii_lock, flags);
-}
-
-/*************************************************/
-
-#ifdef CONFIG_FEC_8XX_GENERIC_PHY
-
-/*
- * Generic PHY support.
- * Should work for all PHYs, but link change is detected by polling
- */
-
-static void generic_timer_callback(unsigned long data)
-{
- struct net_device *dev = (struct net_device *)data;
- struct fec_enet_private *fep = netdev_priv(dev);
-
- fep->phy_timer_list.expires = jiffies + HZ / 2;
-
- add_timer(&fep->phy_timer_list);
-
- fec_mii_link_status_change_check(dev, 0);
-}
-
-static void generic_startup(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
-
- fep->phy_timer_list.expires = jiffies + HZ / 2; /* every 500ms */
- fep->phy_timer_list.data = (unsigned long)dev;
- fep->phy_timer_list.function = generic_timer_callback;
- add_timer(&fep->phy_timer_list);
-}
-
-static void generic_shutdown(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
-
- del_timer_sync(&fep->phy_timer_list);
-}
-
-#endif
-
-#ifdef CONFIG_FEC_8XX_DM9161_PHY
-
-/* ------------------------------------------------------------------------- */
-/* The Davicom DM9161 is used on the NETTA board */
-
-/* register definitions */
-
-#define MII_DM9161_ACR 16 /* Aux. Config Register */
-#define MII_DM9161_ACSR 17 /* Aux. Config/Status Register */
-#define MII_DM9161_10TCSR 18 /* 10BaseT Config/Status Reg. */
-#define MII_DM9161_INTR 21 /* Interrupt Register */
-#define MII_DM9161_RECR 22 /* Receive Error Counter Reg. */
-#define MII_DM9161_DISCR 23 /* Disconnect Counter Register */
-
-static void dm9161_startup(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
-
- fec_mii_write(dev, fep->mii_if.phy_id, MII_DM9161_INTR, 0x0000);
-}
-
-static void dm9161_ack_int(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
-
- fec_mii_read(dev, fep->mii_if.phy_id, MII_DM9161_INTR);
-}
-
-static void dm9161_shutdown(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
-
- fec_mii_write(dev, fep->mii_if.phy_id, MII_DM9161_INTR, 0x0f00);
-}
-
-#endif
-
-#ifdef CONFIG_FEC_8XX_LXT971_PHY
-
-/* Support for LXT971/972 PHY */
-
-#define MII_LXT971_PCR 16 /* Port Control Register */
-#define MII_LXT971_SR2 17 /* Status Register 2 */
-#define MII_LXT971_IER 18 /* Interrupt Enable Register */
-#define MII_LXT971_ISR 19 /* Interrupt Status Register */
-#define MII_LXT971_LCR 20 /* LED Control Register */
-#define MII_LXT971_TCR 30 /* Transmit Control Register */
-
-static void lxt971_startup(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
-
- fec_mii_write(dev, fep->mii_if.phy_id, MII_LXT971_IER, 0x00F2);
-}
-
-static void lxt971_ack_int(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
-
- fec_mii_read(dev, fep->mii_if.phy_id, MII_LXT971_ISR);
-}
-
-static void lxt971_shutdown(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
-
- fec_mii_write(dev, fep->mii_if.phy_id, MII_LXT971_IER, 0x0000);
-}
-#endif
-
-/**********************************************************************************/
-
-static const struct phy_info phy_info[] = {
-#ifdef CONFIG_FEC_8XX_DM9161_PHY
- {
- .id = 0x00181b88,
- .name = "DM9161",
- .startup = dm9161_startup,
- .ack_int = dm9161_ack_int,
- .shutdown = dm9161_shutdown,
- },
-#endif
-#ifdef CONFIG_FEC_8XX_LXT971_PHY
- {
- .id = 0x0001378e,
- .name = "LXT971/972",
- .startup = lxt971_startup,
- .ack_int = lxt971_ack_int,
- .shutdown = lxt971_shutdown,
- },
-#endif
-#ifdef CONFIG_FEC_8XX_GENERIC_PHY
- {
- .id = 0,
- .name = "GENERIC",
- .startup = generic_startup,
- .shutdown = generic_shutdown,
- },
-#endif
-};
-
-/**********************************************************************************/
-
-int fec_mii_phy_id_detect(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- const struct fec_platform_info *fpi = fep->fpi;
- int i, r, start, end, phytype, physubtype;
- const struct phy_info *phy;
- int phy_hwid, phy_id;
-
- /* if no MDIO */
- if (fpi->use_mdio == 0)
- return -1;
-
- phy_hwid = -1;
- fep->phy = NULL;
-
- /* auto-detect? */
- if (fpi->phy_addr == -1) {
- start = 0;
- end = 32;
- } else { /* direct */
- start = fpi->phy_addr;
- end = start + 1;
- }
-
- for (phy_id = start; phy_id < end; phy_id++) {
- r = fec_mii_read(dev, phy_id, MII_PHYSID1);
- if (r == -1 || (phytype = (r & 0xffff)) == 0xffff)
- continue;
- r = fec_mii_read(dev, phy_id, MII_PHYSID2);
- if (r == -1 || (physubtype = (r & 0xffff)) == 0xffff)
- continue;
- phy_hwid = (phytype << 16) | physubtype;
- if (phy_hwid != -1)
- break;
- }
-
- if (phy_hwid == -1) {
- printk(KERN_ERR DRV_MODULE_NAME
- ": %s No PHY detected!\n", dev->name);
- return -1;
- }
-
- for (i = 0, phy = phy_info; i < ARRAY_SIZE(phy_info); i++, phy++)
- if (phy->id == (phy_hwid >> 4) || phy->id == 0)
- break;
-
- if (i >= ARRAY_SIZE(phy_info)) {
- printk(KERN_ERR DRV_MODULE_NAME
- ": %s PHY id 0x%08x is not supported!\n",
- dev->name, phy_hwid);
- return -1;
- }
-
- fep->phy = phy;
-
- printk(KERN_INFO DRV_MODULE_NAME
- ": %s Phy @ 0x%x, type %s (0x%08x)\n",
- dev->name, phy_id, fep->phy->name, phy_hwid);
-
- return phy_id;
-}
-
-void fec_mii_startup(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- const struct fec_platform_info *fpi = fep->fpi;
-
- if (!fpi->use_mdio || fep->phy == NULL)
- return;
-
- if (fep->phy->startup == NULL)
- return;
-
- (*fep->phy->startup) (dev);
-}
-
-void fec_mii_shutdown(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- const struct fec_platform_info *fpi = fep->fpi;
-
- if (!fpi->use_mdio || fep->phy == NULL)
- return;
-
- if (fep->phy->shutdown == NULL)
- return;
-
- (*fep->phy->shutdown) (dev);
-}
-
-void fec_mii_ack_int(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- const struct fec_platform_info *fpi = fep->fpi;
-
- if (!fpi->use_mdio || fep->phy == NULL)
- return;
-
- if (fep->phy->ack_int == NULL)
- return;
-
- (*fep->phy->ack_int) (dev);
-}
-
-/* helper function */
-static int mii_negotiated(struct mii_if_info *mii)
-{
- int advert, lpa, val;
-
- if (!mii_link_ok(mii))
- return 0;
-
- val = (*mii->mdio_read) (mii->dev, mii->phy_id, MII_BMSR);
- if ((val & BMSR_ANEGCOMPLETE) == 0)
- return 0;
-
- advert = (*mii->mdio_read) (mii->dev, mii->phy_id, MII_ADVERTISE);
- lpa = (*mii->mdio_read) (mii->dev, mii->phy_id, MII_LPA);
-
- return mii_nway_result(advert & lpa);
-}
-
-void fec_mii_link_status_change_check(struct net_device *dev, int init_media)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- unsigned int media;
- unsigned long flags;
-
- if (mii_check_media(&fep->mii_if, netif_msg_link(fep), init_media) == 0)
- return;
-
- media = mii_negotiated(&fep->mii_if);
-
- if (netif_carrier_ok(dev)) {
- spin_lock_irqsave(&fep->lock, flags);
- fec_restart(dev, !!(media & ADVERTISE_FULL),
- (media & (ADVERTISE_100FULL | ADVERTISE_100HALF)) ?
- 100 : 10);
- spin_unlock_irqrestore(&fep->lock, flags);
-
- netif_start_queue(dev);
- } else {
- netif_stop_queue(dev);
-
- spin_lock_irqsave(&fep->lock, flags);
- fec_stop(dev);
- spin_unlock_irqrestore(&fep->lock, flags);
-
- }
-}
projects / linux-2.6 / commitdiff