#include <linux/io.h>
#include <linux/irq.h>
#include <linux/clk.h>
+#include <linux/platform_device.h>
+#include <linux/phy.h>
+#include <linux/fec.h>
#include <asm/cacheflush.h>
#include "fec.h"
-#if defined(CONFIG_FEC2)
-#define FEC_MAX_PORTS 2
-#else
-#define FEC_MAX_PORTS 1
-#endif
-
#ifdef CONFIG_ARCH_MXC
#include <mach/hardware.h>
#define FEC_ALIGNMENT 0xf
#define FEC_ALIGNMENT 0x3
#endif
-#if defined(CONFIG_M5272)
-#define HAVE_mii_link_interrupt
-#endif
-
/*
* Define the fixed address of the FEC hardware.
*/
-static unsigned int fec_hw[] = {
#if defined(CONFIG_M5272)
- (MCF_MBAR + 0x840),
-#elif defined(CONFIG_M527x)
- (MCF_MBAR + 0x1000),
- (MCF_MBAR + 0x1800),
-#elif defined(CONFIG_M523x) || defined(CONFIG_M528x)
- (MCF_MBAR + 0x1000),
-#elif defined(CONFIG_M520x)
- (MCF_MBAR+0x30000),
-#elif defined(CONFIG_M532x)
- (MCF_MBAR+0xfc030000),
-#endif
-};
static unsigned char fec_mac_default[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
#else
#define FEC_FLASHMAC 0
#endif
-
-/* Forward declarations of some structures to support different PHYs
-*/
-
-typedef struct {
- uint mii_data;
- void (*funct)(uint mii_reg, struct net_device *dev);
-} phy_cmd_t;
-
-typedef struct {
- uint id;
- char *name;
-
- const phy_cmd_t *config;
- const phy_cmd_t *startup;
- const phy_cmd_t *ack_int;
- const phy_cmd_t *shutdown;
-} phy_info_t;
+#endif /* CONFIG_M5272 */
/* The number of Tx and Rx buffers. These are allocated from the page
* pool. The code may assume these are power of two, so it it best
#error "FEC: descriptor ring size constants too large"
#endif
-/* Interrupt events/masks.
-*/
+/* Interrupt events/masks. */
#define FEC_ENET_HBERR ((uint)0x80000000) /* Heartbeat error */
#define FEC_ENET_BABR ((uint)0x40000000) /* Babbling receiver */
#define FEC_ENET_BABT ((uint)0x20000000) /* Babbling transmitter */
*/
struct fec_enet_private {
/* Hardware registers of the FEC device */
- volatile fec_t *hwp;
+ void __iomem *hwp;
struct net_device *netdev;
+ struct clk *clk;
+
/* The saved address of a sent-in-place packet/buffer, for skfree(). */
unsigned char *tx_bounce[TX_RING_SIZE];
struct sk_buff* tx_skbuff[TX_RING_SIZE];
+ struct sk_buff* rx_skbuff[RX_RING_SIZE];
ushort skb_cur;
ushort skb_dirty;
- /* CPM dual port RAM relative addresses.
- */
+ /* CPM dual port RAM relative addresses */
dma_addr_t bd_dma;
- cbd_t *rx_bd_base; /* Address of Rx and Tx buffers. */
- cbd_t *tx_bd_base;
- cbd_t *cur_rx, *cur_tx; /* The next free ring entry */
- cbd_t *dirty_tx; /* The ring entries to be free()ed. */
+ /* Address of Rx and Tx buffers */
+ struct bufdesc *rx_bd_base;
+ struct bufdesc *tx_bd_base;
+ /* The next free ring entry */
+ struct bufdesc *cur_rx, *cur_tx;
+ /* The ring entries to be free()ed */
+ struct bufdesc *dirty_tx;
+
uint tx_full;
/* hold while accessing the HW like ringbuffer for tx/rx but not MAC */
spinlock_t hw_lock;
- /* hold while accessing the mii_list_t() elements */
- spinlock_t mii_lock;
- uint phy_id;
- uint phy_id_done;
- uint phy_status;
- uint phy_speed;
- phy_info_t const *phy;
- struct work_struct phy_task;
+ struct platform_device *pdev;
- uint sequence_done;
- uint mii_phy_task_queued;
-
- uint phy_addr;
+ int opened;
+ /* Phylib and MDIO interface */
+ struct mii_bus *mii_bus;
+ struct phy_device *phy_dev;
+ int mii_timeout;
+ uint phy_speed;
+ phy_interface_t phy_interface;
int index;
- int opened;
int link;
- int old_link;
int full_duplex;
};
-static int fec_enet_open(struct net_device *dev);
-static int fec_enet_start_xmit(struct sk_buff *skb, struct net_device *dev);
-static void fec_enet_mii(struct net_device *dev);
static irqreturn_t fec_enet_interrupt(int irq, void * dev_id);
static void fec_enet_tx(struct net_device *dev);
static void fec_enet_rx(struct net_device *dev);
static int fec_enet_close(struct net_device *dev);
-static void set_multicast_list(struct net_device *dev);
static void fec_restart(struct net_device *dev, int duplex);
static void fec_stop(struct net_device *dev);
-static void fec_set_mac_address(struct net_device *dev);
+/* FEC MII MMFR bits definition */
+#define FEC_MMFR_ST (1 << 30)
+#define FEC_MMFR_OP_READ (2 << 28)
+#define FEC_MMFR_OP_WRITE (1 << 28)
+#define FEC_MMFR_PA(v) ((v & 0x1f) << 23)
+#define FEC_MMFR_RA(v) ((v & 0x1f) << 18)
+#define FEC_MMFR_TA (2 << 16)
+#define FEC_MMFR_DATA(v) (v & 0xffff)
-/* MII processing. We keep this as simple as possible. Requests are
- * placed on the list (if there is room). When the request is finished
- * by the MII, an optional function may be called.
- */
-typedef struct mii_list {
- uint mii_regval;
- void (*mii_func)(uint val, struct net_device *dev);
- struct mii_list *mii_next;
-} mii_list_t;
-
-#define NMII 20
-static mii_list_t mii_cmds[NMII];
-static mii_list_t *mii_free;
-static mii_list_t *mii_head;
-static mii_list_t *mii_tail;
-
-static int mii_queue(struct net_device *dev, int request,
- void (*func)(uint, struct net_device *));
-
-/* 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
-
-/* Transmitter timeout.
-*/
-#define TX_TIMEOUT (2*HZ)
-
-/* Register definitions for the PHY.
-*/
-
-#define MII_REG_CR 0 /* Control Register */
-#define MII_REG_SR 1 /* Status Register */
-#define MII_REG_PHYIR1 2 /* PHY Identification Register 1 */
-#define MII_REG_PHYIR2 3 /* PHY Identification Register 2 */
-#define MII_REG_ANAR 4 /* A-N Advertisement Register */
-#define MII_REG_ANLPAR 5 /* A-N Link Partner Ability Register */
-#define MII_REG_ANER 6 /* A-N Expansion Register */
-#define MII_REG_ANNPTR 7 /* A-N Next Page Transmit Register */
-#define MII_REG_ANLPRNPR 8 /* A-N Link Partner Received Next Page Reg. */
-
-/* values for 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 */
+#define FEC_MII_TIMEOUT 10000
+/* Transmitter timeout */
+#define TX_TIMEOUT (2 * HZ)
static int
fec_enet_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
- struct fec_enet_private *fep;
- volatile fec_t *fecp;
- volatile cbd_t *bdp;
+ struct fec_enet_private *fep = netdev_priv(dev);
+ struct bufdesc *bdp;
+ void *bufaddr;
unsigned short status;
unsigned long flags;
- fep = netdev_priv(dev);
- fecp = (volatile fec_t*)dev->base_addr;
-
if (!fep->link) {
/* Link is down or autonegotiation is in progress. */
- return 1;
+ return NETDEV_TX_BUSY;
}
spin_lock_irqsave(&fep->hw_lock, flags);
bdp = fep->cur_tx;
status = bdp->cbd_sc;
-#ifndef final_version
+
if (status & BD_ENET_TX_READY) {
/* Ooops. All transmit buffers are full. Bail out.
* This should not happen, since dev->tbusy should be set.
*/
printk("%s: tx queue full!.\n", dev->name);
spin_unlock_irqrestore(&fep->hw_lock, flags);
- return 1;
+ return NETDEV_TX_BUSY;
}
-#endif
- /* Clear all of the status flags.
- */
+ /* Clear all of the status flags */
status &= ~BD_ENET_TX_STATS;
- /* Set buffer length and buffer pointer.
- */
- bdp->cbd_bufaddr = __pa(skb->data);
+ /* Set buffer length and buffer pointer */
+ bufaddr = skb->data;
bdp->cbd_datlen = skb->len;
/*
- * On some FEC implementations data must be aligned on
- * 4-byte boundaries. Use bounce buffers to copy data
- * and get it aligned. Ugh.
+ * On some FEC implementations data must be aligned on
+ * 4-byte boundaries. Use bounce buffers to copy data
+ * and get it aligned. Ugh.
*/
- if (bdp->cbd_bufaddr & FEC_ALIGNMENT) {
+ if (((unsigned long) bufaddr) & FEC_ALIGNMENT) {
unsigned int index;
index = bdp - fep->tx_bd_base;
memcpy(fep->tx_bounce[index], (void *)skb->data, skb->len);
- bdp->cbd_bufaddr = __pa(fep->tx_bounce[index]);
+ bufaddr = fep->tx_bounce[index];
}
- /* Save skb pointer.
- */
+ /* Save skb pointer */
fep->tx_skbuff[fep->skb_cur] = skb;
dev->stats.tx_bytes += skb->len;
/* Push the data cache so the CPM does not get stale memory
* data.
*/
- dma_sync_single(NULL, bdp->cbd_bufaddr,
- bdp->cbd_datlen, DMA_TO_DEVICE);
+ bdp->cbd_bufaddr = dma_map_single(&dev->dev, bufaddr,
+ FEC_ENET_TX_FRSIZE, DMA_TO_DEVICE);
/* Send it on its way. Tell FEC it's ready, interrupt when done,
* it's the last BD of the frame, and to put the CRC on the end.
*/
-
status |= (BD_ENET_TX_READY | BD_ENET_TX_INTR
| BD_ENET_TX_LAST | BD_ENET_TX_TC);
bdp->cbd_sc = status;
- dev->trans_start = jiffies;
-
/* Trigger transmission start */
- fecp->fec_x_des_active = 0;
+ writel(0, fep->hwp + FEC_X_DES_ACTIVE);
- /* If this was the last BD in the ring, start at the beginning again.
- */
- if (status & BD_ENET_TX_WRAP) {
+ /* If this was the last BD in the ring, start at the beginning again. */
+ if (status & BD_ENET_TX_WRAP)
bdp = fep->tx_bd_base;
- } else {
+ else
bdp++;
- }
if (bdp == fep->dirty_tx) {
fep->tx_full = 1;
netif_stop_queue(dev);
}
- fep->cur_tx = (cbd_t *)bdp;
+ fep->cur_tx = bdp;
spin_unlock_irqrestore(&fep->hw_lock, flags);
- return 0;
+ return NETDEV_TX_OK;
}
static void
{
struct fec_enet_private *fep = netdev_priv(dev);
- printk("%s: transmit timed out.\n", dev->name);
dev->stats.tx_errors++;
-#ifndef final_version
- {
- int i;
- cbd_t *bdp;
- printk("Ring data dump: cur_tx %lx%s, dirty_tx %lx cur_rx: %lx\n",
- (unsigned long)fep->cur_tx, fep->tx_full ? " (full)" : "",
- (unsigned long)fep->dirty_tx,
- (unsigned long)fep->cur_rx);
-
- bdp = fep->tx_bd_base;
- printk(" tx: %u buffers\n", TX_RING_SIZE);
- for (i = 0 ; i < TX_RING_SIZE; i++) {
- printk(" %08x: %04x %04x %08x\n",
- (uint) bdp,
- bdp->cbd_sc,
- bdp->cbd_datlen,
- (int) bdp->cbd_bufaddr);
- bdp++;
- }
-
- bdp = fep->rx_bd_base;
- printk(" rx: %lu buffers\n", (unsigned long) RX_RING_SIZE);
- for (i = 0 ; i < RX_RING_SIZE; i++) {
- printk(" %08x: %04x %04x %08x\n",
- (uint) bdp,
- bdp->cbd_sc,
- bdp->cbd_datlen,
- (int) bdp->cbd_bufaddr);
- bdp++;
- }
- }
-#endif
fec_restart(dev, fep->full_duplex);
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;
- volatile fec_t *fecp;
+ struct fec_enet_private *fep = netdev_priv(dev);
uint int_events;
irqreturn_t ret = IRQ_NONE;
- fecp = (volatile fec_t*)dev->base_addr;
-
- /* Get the interrupt events that caused us to be here.
- */
do {
- int_events = fecp->fec_ievent;
- fecp->fec_ievent = int_events;
+ int_events = readl(fep->hwp + FEC_IEVENT);
+ writel(int_events, fep->hwp + FEC_IEVENT);
- /* Handle receive event in its own function.
- */
if (int_events & FEC_ENET_RXF) {
ret = IRQ_HANDLED;
fec_enet_rx(dev);
}
/* Transmit OK, or non-fatal error. Update the buffer
- descriptors. FEC handles all errors, we just discover
- them as part of the transmit process.
- */
+ * descriptors. FEC handles all errors, we just discover
+ * them as part of the transmit process.
+ */
if (int_events & FEC_ENET_TXF) {
ret = IRQ_HANDLED;
fec_enet_tx(dev);
}
-
- if (int_events & FEC_ENET_MII) {
- ret = IRQ_HANDLED;
- fec_enet_mii(dev);
- }
-
} while (int_events);
return ret;
fec_enet_tx(struct net_device *dev)
{
struct fec_enet_private *fep;
- volatile cbd_t *bdp;
+ struct bufdesc *bdp;
unsigned short status;
struct sk_buff *skb;
fep = netdev_priv(dev);
- spin_lock_irq(&fep->hw_lock);
+ spin_lock(&fep->hw_lock);
bdp = fep->dirty_tx;
while (((status = bdp->cbd_sc) & BD_ENET_TX_READY) == 0) {
- if (bdp == fep->cur_tx && fep->tx_full == 0) break;
+ if (bdp == fep->cur_tx && fep->tx_full == 0)
+ break;
+
+ dma_unmap_single(&dev->dev, bdp->cbd_bufaddr, FEC_ENET_TX_FRSIZE, DMA_TO_DEVICE);
+ bdp->cbd_bufaddr = 0;
skb = fep->tx_skbuff[fep->skb_dirty];
/* Check for errors. */
dev->stats.tx_packets++;
}
-#ifndef final_version
if (status & BD_ENET_TX_READY)
printk("HEY! Enet xmit interrupt and TX_READY.\n");
-#endif
+
/* Deferred means some collisions occurred during transmit,
* but we eventually sent the packet OK.
*/
if (status & BD_ENET_TX_DEF)
dev->stats.collisions++;
- /* Free the sk buffer associated with this last transmit.
- */
+ /* Free the sk buffer associated with this last transmit */
dev_kfree_skb_any(skb);
fep->tx_skbuff[fep->skb_dirty] = NULL;
fep->skb_dirty = (fep->skb_dirty + 1) & TX_RING_MOD_MASK;
- /* Update pointer to next buffer descriptor to be transmitted.
- */
+ /* Update pointer to next buffer descriptor to be transmitted */
if (status & BD_ENET_TX_WRAP)
bdp = fep->tx_bd_base;
else
bdp++;
- /* Since we have freed up a buffer, the ring is no longer
- * full.
+ /* Since we have freed up a buffer, the ring is no longer full
*/
if (fep->tx_full) {
fep->tx_full = 0;
netif_wake_queue(dev);
}
}
- fep->dirty_tx = (cbd_t *)bdp;
- spin_unlock_irq(&fep->hw_lock);
+ fep->dirty_tx = bdp;
+ spin_unlock(&fep->hw_lock);
}
static void
fec_enet_rx(struct net_device *dev)
{
- struct fec_enet_private *fep;
- volatile fec_t *fecp;
- volatile cbd_t *bdp;
+ struct fec_enet_private *fep = netdev_priv(dev);
+ struct bufdesc *bdp;
unsigned short status;
struct sk_buff *skb;
ushort pkt_len;
flush_cache_all();
#endif
- fep = netdev_priv(dev);
- fecp = (volatile fec_t*)dev->base_addr;
-
- spin_lock_irq(&fep->hw_lock);
+ spin_lock(&fep->hw_lock);
/* 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;
-while (!((status = bdp->cbd_sc) & BD_ENET_RX_EMPTY)) {
+ while (!((status = bdp->cbd_sc) & BD_ENET_RX_EMPTY)) {
-#ifndef final_version
- /* Since we have allocated space to hold a complete frame,
- * the last indicator should be set.
- */
- if ((status & BD_ENET_RX_LAST) == 0)
- printk("FEC ENET: rcv is not +last\n");
-#endif
+ /* Since we have allocated space to hold a complete frame,
+ * the last indicator should be set.
+ */
+ if ((status & BD_ENET_RX_LAST) == 0)
+ printk("FEC ENET: rcv is not +last\n");
- if (!fep->opened)
- goto rx_processing_done;
+ if (!fep->opened)
+ goto rx_processing_done;
- /* Check for errors. */
- if (status & (BD_ENET_RX_LG | BD_ENET_RX_SH | BD_ENET_RX_NO |
+ /* Check for errors. */
+ if (status & (BD_ENET_RX_LG | BD_ENET_RX_SH | BD_ENET_RX_NO |
BD_ENET_RX_CR | BD_ENET_RX_OV)) {
- dev->stats.rx_errors++;
- if (status & (BD_ENET_RX_LG | BD_ENET_RX_SH)) {
- /* Frame too long or too short. */
- dev->stats.rx_length_errors++;
+ dev->stats.rx_errors++;
+ if (status & (BD_ENET_RX_LG | BD_ENET_RX_SH)) {
+ /* Frame too long or too short. */
+ dev->stats.rx_length_errors++;
+ }
+ if (status & BD_ENET_RX_NO) /* Frame alignment */
+ dev->stats.rx_frame_errors++;
+ if (status & BD_ENET_RX_CR) /* CRC Error */
+ dev->stats.rx_crc_errors++;
+ if (status & BD_ENET_RX_OV) /* FIFO overrun */
+ dev->stats.rx_fifo_errors++;
}
- if (status & BD_ENET_RX_NO) /* Frame alignment */
+
+ /* Report late collisions as a frame error.
+ * On this error, the BD is closed, but we don't know what we
+ * have in the buffer. So, just drop this frame on the floor.
+ */
+ if (status & BD_ENET_RX_CL) {
+ dev->stats.rx_errors++;
dev->stats.rx_frame_errors++;
- if (status & BD_ENET_RX_CR) /* CRC Error */
- dev->stats.rx_crc_errors++;
- if (status & BD_ENET_RX_OV) /* FIFO overrun */
- dev->stats.rx_fifo_errors++;
- }
+ goto rx_processing_done;
+ }
- /* Report late collisions as a frame error.
- * On this error, the BD is closed, but we don't know what we
- * have in the buffer. So, just drop this frame on the floor.
- */
- if (status & BD_ENET_RX_CL) {
- dev->stats.rx_errors++;
- dev->stats.rx_frame_errors++;
- goto rx_processing_done;
- }
+ /* Process the incoming frame. */
+ dev->stats.rx_packets++;
+ pkt_len = bdp->cbd_datlen;
+ dev->stats.rx_bytes += pkt_len;
+ data = (__u8*)__va(bdp->cbd_bufaddr);
- /* Process the incoming frame.
- */
- dev->stats.rx_packets++;
- pkt_len = bdp->cbd_datlen;
- dev->stats.rx_bytes += pkt_len;
- data = (__u8*)__va(bdp->cbd_bufaddr);
-
- dma_sync_single(NULL, (unsigned long)__pa(data),
- pkt_len - 4, DMA_FROM_DEVICE);
-
- /* This does 16 byte alignment, exactly what we need.
- * The packet length includes FCS, but we don't want to
- * include that when passing upstream as it messes up
- * bridging applications.
- */
- skb = dev_alloc_skb(pkt_len-4);
+ dma_unmap_single(NULL, bdp->cbd_bufaddr, bdp->cbd_datlen,
+ DMA_FROM_DEVICE);
- if (skb == NULL) {
- printk("%s: Memory squeeze, dropping packet.\n", dev->name);
- dev->stats.rx_dropped++;
- } else {
- skb_put(skb,pkt_len-4); /* Make room */
- skb_copy_to_linear_data(skb, data, pkt_len-4);
- skb->protocol=eth_type_trans(skb,dev);
- netif_rx(skb);
- }
- rx_processing_done:
+ /* This does 16 byte alignment, exactly what we need.
+ * The packet length includes FCS, but we don't want to
+ * include that when passing upstream as it messes up
+ * bridging applications.
+ */
+ skb = dev_alloc_skb(pkt_len - 4 + NET_IP_ALIGN);
- /* Clear the status flags for this buffer.
- */
- status &= ~BD_ENET_RX_STATS;
+ if (unlikely(!skb)) {
+ printk("%s: Memory squeeze, dropping packet.\n",
+ dev->name);
+ dev->stats.rx_dropped++;
+ } else {
+ skb_reserve(skb, NET_IP_ALIGN);
+ skb_put(skb, pkt_len - 4); /* Make room */
+ skb_copy_to_linear_data(skb, data, pkt_len - 4);
+ skb->protocol = eth_type_trans(skb, dev);
+ netif_rx(skb);
+ }
- /* Mark the buffer empty.
- */
- status |= BD_ENET_RX_EMPTY;
- bdp->cbd_sc = status;
+ bdp->cbd_bufaddr = dma_map_single(NULL, data, bdp->cbd_datlen,
+ DMA_FROM_DEVICE);
+rx_processing_done:
+ /* Clear the status flags for this buffer */
+ status &= ~BD_ENET_RX_STATS;
- /* Update BD pointer to next entry.
- */
- if (status & BD_ENET_RX_WRAP)
- bdp = fep->rx_bd_base;
- else
- bdp++;
+ /* Mark the buffer empty */
+ status |= BD_ENET_RX_EMPTY;
+ bdp->cbd_sc = status;
-#if 1
- /* 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.
- */
- fecp->fec_r_des_active = 0;
-#endif
- } /* while (!((status = bdp->cbd_sc) & BD_ENET_RX_EMPTY)) */
- fep->cur_rx = (cbd_t *)bdp;
-
-#if 0
- /* Doing this here will allow us to process all frames in the
- * ring before the FEC is allowed to put more there. On a heavily
- * loaded network, some frames may be lost. Unfortunately, this
- * increases the interrupt overhead since we can potentially work
- * our way back to the interrupt return only to come right back
- * here.
- */
- fecp->fec_r_des_active = 0;
-#endif
+ /* Update BD pointer to next entry */
+ if (status & BD_ENET_RX_WRAP)
+ bdp = fep->rx_bd_base;
+ else
+ bdp++;
+ /* 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.
+ */
+ writel(0, fep->hwp + FEC_R_DES_ACTIVE);
+ }
+ fep->cur_rx = bdp;
- spin_unlock_irq(&fep->hw_lock);
+ spin_unlock(&fep->hw_lock);
}
-
-/* called from interrupt context */
-static void
-fec_enet_mii(struct net_device *dev)
+/* ------------------------------------------------------------------------- */
+#ifdef CONFIG_M5272
+static void __inline__ fec_get_mac(struct net_device *dev)
{
- struct fec_enet_private *fep;
- volatile fec_t *ep;
- mii_list_t *mip;
- uint mii_reg;
+ struct fec_enet_private *fep = netdev_priv(dev);
+ unsigned char *iap, tmpaddr[ETH_ALEN];
- fep = netdev_priv(dev);
- spin_lock_irq(&fep->mii_lock);
+ if (FEC_FLASHMAC) {
+ /*
+ * Get MAC address from FLASH.
+ * If it is all 1's or 0's, use the default.
+ */
+ iap = (unsigned char *)FEC_FLASHMAC;
+ if ((iap[0] == 0) && (iap[1] == 0) && (iap[2] == 0) &&
+ (iap[3] == 0) && (iap[4] == 0) && (iap[5] == 0))
+ iap = fec_mac_default;
+ if ((iap[0] == 0xff) && (iap[1] == 0xff) && (iap[2] == 0xff) &&
+ (iap[3] == 0xff) && (iap[4] == 0xff) && (iap[5] == 0xff))
+ iap = fec_mac_default;
+ } else {
+ *((unsigned long *) &tmpaddr[0]) = readl(fep->hwp + FEC_ADDR_LOW);
+ *((unsigned short *) &tmpaddr[4]) = (readl(fep->hwp + FEC_ADDR_HIGH) >> 16);
+ iap = &tmpaddr[0];
+ }
- ep = fep->hwp;
- mii_reg = ep->fec_mii_data;
+ memcpy(dev->dev_addr, iap, ETH_ALEN);
- if ((mip = mii_head) == NULL) {
- printk("MII and no head!\n");
- goto unlock;
- }
+ /* Adjust MAC if using default MAC address */
+ if (iap == fec_mac_default)
+ dev->dev_addr[ETH_ALEN-1] = fec_mac_default[ETH_ALEN-1] + fep->index;
+}
+#endif
- if (mip->mii_func != NULL)
- (*(mip->mii_func))(mii_reg, dev);
+/* ------------------------------------------------------------------------- */
- mii_head = mip->mii_next;
- mip->mii_next = mii_free;
- mii_free = mip;
+/*
+ * Phy section
+ */
+static void fec_enet_adjust_link(struct net_device *dev)
+{
+ struct fec_enet_private *fep = netdev_priv(dev);
+ struct phy_device *phy_dev = fep->phy_dev;
+ unsigned long flags;
- if ((mip = mii_head) != NULL)
- ep->fec_mii_data = mip->mii_regval;
+ int status_change = 0;
-unlock:
- spin_unlock_irq(&fep->mii_lock);
-}
+ spin_lock_irqsave(&fep->hw_lock, flags);
-static int
-mii_queue(struct net_device *dev, int regval, void (*func)(uint, struct net_device *))
-{
- struct fec_enet_private *fep;
- unsigned long flags;
- mii_list_t *mip;
- int retval;
+ /* Prevent a state halted on mii error */
+ if (fep->mii_timeout && phy_dev->state == PHY_HALTED) {
+ phy_dev->state = PHY_RESUMING;
+ goto spin_unlock;
+ }
- /* Add PHY address to register command.
- */
- fep = netdev_priv(dev);
- spin_lock_irqsave(&fep->mii_lock, flags);
-
- regval |= fep->phy_addr << 23;
- retval = 0;
-
- if ((mip = mii_free) != NULL) {
- mii_free = mip->mii_next;
- mip->mii_regval = regval;
- mip->mii_func = func;
- mip->mii_next = NULL;
- if (mii_head) {
- mii_tail->mii_next = mip;
- mii_tail = mip;
- } else {
- mii_head = mii_tail = mip;
- fep->hwp->fec_mii_data = regval;
+ /* Duplex link change */
+ if (phy_dev->link) {
+ if (fep->full_duplex != phy_dev->duplex) {
+ fec_restart(dev, phy_dev->duplex);
+ status_change = 1;
}
- } else {
- retval = 1;
}
- spin_unlock_irqrestore(&fep->mii_lock, flags);
- return retval;
-}
+ /* Link on or off change */
+ if (phy_dev->link != fep->link) {
+ fep->link = phy_dev->link;
+ if (phy_dev->link)
+ fec_restart(dev, phy_dev->duplex);
+ else
+ fec_stop(dev);
+ status_change = 1;
+ }
-static void mii_do_cmd(struct net_device *dev, const phy_cmd_t *c)
-{
- if(!c)
- return;
+spin_unlock:
+ spin_unlock_irqrestore(&fep->hw_lock, flags);
- for (; c->mii_data != mk_mii_end; c++)
- mii_queue(dev, c->mii_data, c->funct);
+ if (status_change)
+ phy_print_status(phy_dev);
}
-static void mii_parse_sr(uint mii_reg, struct net_device *dev)
+/*
+ * NOTE: a MII transaction is during around 25 us, so polling it...
+ */
+static int fec_enet_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
{
- struct fec_enet_private *fep = netdev_priv(dev);
- volatile uint *s = &(fep->phy_status);
- uint status;
-
- status = *s & ~(PHY_STAT_LINK | PHY_STAT_FAULT | PHY_STAT_ANC);
-
- if (mii_reg & 0x0004)
- status |= PHY_STAT_LINK;
- if (mii_reg & 0x0010)
- status |= PHY_STAT_FAULT;
- if (mii_reg & 0x0020)
- status |= PHY_STAT_ANC;
- *s = status;
+ struct fec_enet_private *fep = bus->priv;
+ int timeout = FEC_MII_TIMEOUT;
+
+ fep->mii_timeout = 0;
+
+ /* clear MII end of transfer bit*/
+ writel(FEC_ENET_MII, fep->hwp + FEC_IEVENT);
+
+ /* start a read op */
+ writel(FEC_MMFR_ST | FEC_MMFR_OP_READ |
+ FEC_MMFR_PA(mii_id) | FEC_MMFR_RA(regnum) |
+ FEC_MMFR_TA, fep->hwp + FEC_MII_DATA);
+
+ /* wait for end of transfer */
+ while (!(readl(fep->hwp + FEC_IEVENT) & FEC_ENET_MII)) {
+ cpu_relax();
+ if (timeout-- < 0) {
+ fep->mii_timeout = 1;
+ printk(KERN_ERR "FEC: MDIO read timeout\n");
+ return -ETIMEDOUT;
+ }
+ }
+
+ /* return value */
+ return FEC_MMFR_DATA(readl(fep->hwp + FEC_MII_DATA));
}
-static void mii_parse_cr(uint mii_reg, struct net_device *dev)
+static int fec_enet_mdio_write(struct mii_bus *bus, int mii_id, int regnum,
+ u16 value)
{
- struct fec_enet_private *fep = netdev_priv(dev);
- volatile uint *s = &(fep->phy_status);
- uint status;
-
- status = *s & ~(PHY_CONF_ANE | PHY_CONF_LOOP);
+ struct fec_enet_private *fep = bus->priv;
+ int timeout = FEC_MII_TIMEOUT;
+
+ fep->mii_timeout = 0;
+
+ /* clear MII end of transfer bit*/
+ writel(FEC_ENET_MII, fep->hwp + FEC_IEVENT);
+
+ /* start a read op */
+ writel(FEC_MMFR_ST | FEC_MMFR_OP_READ |
+ FEC_MMFR_PA(mii_id) | FEC_MMFR_RA(regnum) |
+ FEC_MMFR_TA | FEC_MMFR_DATA(value),
+ fep->hwp + FEC_MII_DATA);
+
+ /* wait for end of transfer */
+ while (!(readl(fep->hwp + FEC_IEVENT) & FEC_ENET_MII)) {
+ cpu_relax();
+ if (timeout-- < 0) {
+ fep->mii_timeout = 1;
+ printk(KERN_ERR "FEC: MDIO write timeout\n");
+ return -ETIMEDOUT;
+ }
+ }
- if (mii_reg & 0x1000)
- status |= PHY_CONF_ANE;
- if (mii_reg & 0x4000)
- status |= PHY_CONF_LOOP;
- *s = status;
+ return 0;
}
-static void mii_parse_anar(uint mii_reg, struct net_device *dev)
+static int fec_enet_mdio_reset(struct mii_bus *bus)
{
- struct fec_enet_private *fep = netdev_priv(dev);
- volatile uint *s = &(fep->phy_status);
- uint status;
-
- status = *s & ~(PHY_CONF_SPMASK);
-
- if (mii_reg & 0x0020)
- status |= PHY_CONF_10HDX;
- if (mii_reg & 0x0040)
- status |= PHY_CONF_10FDX;
- if (mii_reg & 0x0080)
- status |= PHY_CONF_100HDX;
- if (mii_reg & 0x00100)
- status |= PHY_CONF_100FDX;
- *s = status;
+ return 0;
}
-/* ------------------------------------------------------------------------- */
-/* The Level one LXT970 is used by many boards */
-
-#define MII_LXT970_MIRROR 16 /* Mirror register */
-#define MII_LXT970_IER 17 /* Interrupt Enable Register */
-#define MII_LXT970_ISR 18 /* Interrupt Status Register */
-#define MII_LXT970_CONFIG 19 /* Configuration Register */
-#define MII_LXT970_CSR 20 /* Chip Status Register */
-
-static void mii_parse_lxt970_csr(uint mii_reg, struct net_device *dev)
+static int fec_enet_mii_probe(struct net_device *dev)
{
struct fec_enet_private *fep = netdev_priv(dev);
- volatile uint *s = &(fep->phy_status);
- uint status;
+ struct phy_device *phy_dev = NULL;
+ int phy_addr;
- status = *s & ~(PHY_STAT_SPMASK);
- if (mii_reg & 0x0800) {
- if (mii_reg & 0x1000)
- status |= PHY_STAT_100FDX;
- else
- status |= PHY_STAT_100HDX;
- } else {
- if (mii_reg & 0x1000)
- status |= PHY_STAT_10FDX;
- else
- status |= PHY_STAT_10HDX;
+ /* find the first phy */
+ for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) {
+ if (fep->mii_bus->phy_map[phy_addr]) {
+ phy_dev = fep->mii_bus->phy_map[phy_addr];
+ break;
+ }
}
- *s = status;
-}
-static phy_cmd_t const phy_cmd_lxt970_config[] = {
- { mk_mii_read(MII_REG_CR), mii_parse_cr },
- { mk_mii_read(MII_REG_ANAR), mii_parse_anar },
- { mk_mii_end, }
- };
-static phy_cmd_t const phy_cmd_lxt970_startup[] = { /* enable interrupts */
- { mk_mii_write(MII_LXT970_IER, 0x0002), NULL },
- { mk_mii_write(MII_REG_CR, 0x1200), NULL }, /* autonegotiate */
- { mk_mii_end, }
- };
-static phy_cmd_t const phy_cmd_lxt970_ack_int[] = {
- /* read SR and ISR to acknowledge */
- { mk_mii_read(MII_REG_SR), mii_parse_sr },
- { mk_mii_read(MII_LXT970_ISR), NULL },
-
- /* find out the current status */
- { mk_mii_read(MII_LXT970_CSR), mii_parse_lxt970_csr },
- { mk_mii_end, }
- };
-static phy_cmd_t const phy_cmd_lxt970_shutdown[] = { /* disable interrupts */
- { mk_mii_write(MII_LXT970_IER, 0x0000), NULL },
- { mk_mii_end, }
- };
-static phy_info_t const phy_info_lxt970 = {
- .id = 0x07810000,
- .name = "LXT970",
- .config = phy_cmd_lxt970_config,
- .startup = phy_cmd_lxt970_startup,
- .ack_int = phy_cmd_lxt970_ack_int,
- .shutdown = phy_cmd_lxt970_shutdown
-};
+ if (!phy_dev) {
+ printk(KERN_ERR "%s: no PHY found\n", dev->name);
+ return -ENODEV;
+ }
-/* ------------------------------------------------------------------------- */
-/* The Level one LXT971 is used on some of my custom boards */
+ /* attach the mac to the phy */
+ phy_dev = phy_connect(dev, dev_name(&phy_dev->dev),
+ &fec_enet_adjust_link, 0,
+ PHY_INTERFACE_MODE_MII);
+ if (IS_ERR(phy_dev)) {
+ printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name);
+ return PTR_ERR(phy_dev);
+ }
-/* register definitions for the 971 */
+ /* mask with MAC supported features */
+ phy_dev->supported &= PHY_BASIC_FEATURES;
+ phy_dev->advertising = phy_dev->supported;
-#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 */
+ fep->phy_dev = phy_dev;
+ fep->link = 0;
+ fep->full_duplex = 0;
-/*
- * I had some nice ideas of running the MDIO faster...
- * The 971 should support 8MHz and I tried it, but things acted really
- * weird, so 2.5 MHz ought to be enough for anyone...
- */
+ return 0;
+}
-static void mii_parse_lxt971_sr2(uint mii_reg, struct net_device *dev)
+static int fec_enet_mii_init(struct platform_device *pdev)
{
+ struct net_device *dev = platform_get_drvdata(pdev);
struct fec_enet_private *fep = netdev_priv(dev);
- volatile uint *s = &(fep->phy_status);
- uint status;
+ int err = -ENXIO, i;
- status = *s & ~(PHY_STAT_SPMASK | PHY_STAT_LINK | PHY_STAT_ANC);
+ fep->mii_timeout = 0;
- if (mii_reg & 0x0400) {
- fep->link = 1;
- status |= PHY_STAT_LINK;
- } else {
- fep->link = 0;
- }
- if (mii_reg & 0x0080)
- status |= PHY_STAT_ANC;
- if (mii_reg & 0x4000) {
- if (mii_reg & 0x0200)
- status |= PHY_STAT_100FDX;
- else
- status |= PHY_STAT_100HDX;
- } else {
- if (mii_reg & 0x0200)
- status |= PHY_STAT_10FDX;
- else
- status |= PHY_STAT_10HDX;
- }
- if (mii_reg & 0x0008)
- status |= PHY_STAT_FAULT;
+ /*
+ * Set MII speed to 2.5 MHz (= clk_get_rate() / 2 * phy_speed)
+ */
+ fep->phy_speed = DIV_ROUND_UP(clk_get_rate(fep->clk), 5000000) << 1;
+ writel(fep->phy_speed, fep->hwp + FEC_MII_SPEED);
- *s = status;
-}
+ fep->mii_bus = mdiobus_alloc();
+ if (fep->mii_bus == NULL) {
+ err = -ENOMEM;
+ goto err_out;
+ }
-static phy_cmd_t const phy_cmd_lxt971_config[] = {
- /* limit to 10MBit because my prototype board
- * doesn't work with 100. */
- { mk_mii_read(MII_REG_CR), mii_parse_cr },
- { mk_mii_read(MII_REG_ANAR), mii_parse_anar },
- { mk_mii_read(MII_LXT971_SR2), mii_parse_lxt971_sr2 },
- { mk_mii_end, }
- };
-static phy_cmd_t const phy_cmd_lxt971_startup[] = { /* enable interrupts */
- { mk_mii_write(MII_LXT971_IER, 0x00f2), NULL },
- { mk_mii_write(MII_REG_CR, 0x1200), NULL }, /* autonegotiate */
- { mk_mii_write(MII_LXT971_LCR, 0xd422), NULL }, /* LED config */
- /* Somehow does the 971 tell me that the link is down
- * the first read after power-up.
- * read here to get a valid value in ack_int */
- { mk_mii_read(MII_REG_SR), mii_parse_sr },
- { mk_mii_end, }
- };
-static phy_cmd_t const phy_cmd_lxt971_ack_int[] = {
- /* acknowledge the int before reading status ! */
- { mk_mii_read(MII_LXT971_ISR), NULL },
- /* find out the current status */
- { mk_mii_read(MII_REG_SR), mii_parse_sr },
- { mk_mii_read(MII_LXT971_SR2), mii_parse_lxt971_sr2 },
- { mk_mii_end, }
- };
-static phy_cmd_t const phy_cmd_lxt971_shutdown[] = { /* disable interrupts */
- { mk_mii_write(MII_LXT971_IER, 0x0000), NULL },
- { mk_mii_end, }
- };
-static phy_info_t const phy_info_lxt971 = {
- .id = 0x0001378e,
- .name = "LXT971",
- .config = phy_cmd_lxt971_config,
- .startup = phy_cmd_lxt971_startup,
- .ack_int = phy_cmd_lxt971_ack_int,
- .shutdown = phy_cmd_lxt971_shutdown
-};
+ fep->mii_bus->name = "fec_enet_mii_bus";
+ fep->mii_bus->read = fec_enet_mdio_read;
+ fep->mii_bus->write = fec_enet_mdio_write;
+ fep->mii_bus->reset = fec_enet_mdio_reset;
+ snprintf(fep->mii_bus->id, MII_BUS_ID_SIZE, "%x", pdev->id);
+ fep->mii_bus->priv = fep;
+ fep->mii_bus->parent = &pdev->dev;
+
+ fep->mii_bus->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL);
+ if (!fep->mii_bus->irq) {
+ err = -ENOMEM;
+ goto err_out_free_mdiobus;
+ }
-/* ------------------------------------------------------------------------- */
-/* The Quality Semiconductor QS6612 is used on the RPX CLLF */
+ for (i = 0; i < PHY_MAX_ADDR; i++)
+ fep->mii_bus->irq[i] = PHY_POLL;
-/* register definitions */
+ platform_set_drvdata(dev, fep->mii_bus);
-#define MII_QS6612_MCR 17 /* Mode Control Register */
-#define MII_QS6612_FTR 27 /* Factory Test Register */
-#define MII_QS6612_MCO 28 /* Misc. Control Register */
-#define MII_QS6612_ISR 29 /* Interrupt Source Register */
-#define MII_QS6612_IMR 30 /* Interrupt Mask Register */
-#define MII_QS6612_PCR 31 /* 100BaseTx PHY Control Reg. */
+ if (mdiobus_register(fep->mii_bus))
+ goto err_out_free_mdio_irq;
-static void mii_parse_qs6612_pcr(uint mii_reg, struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- volatile uint *s = &(fep->phy_status);
- uint status;
+ if (fec_enet_mii_probe(dev) != 0)
+ goto err_out_unregister_bus;
- status = *s & ~(PHY_STAT_SPMASK);
+ return 0;
- switch((mii_reg >> 2) & 7) {
- case 1: status |= PHY_STAT_10HDX; break;
- case 2: status |= PHY_STAT_100HDX; break;
- case 5: status |= PHY_STAT_10FDX; break;
- case 6: status |= PHY_STAT_100FDX; break;
+err_out_unregister_bus:
+ mdiobus_unregister(fep->mii_bus);
+err_out_free_mdio_irq:
+ kfree(fep->mii_bus->irq);
+err_out_free_mdiobus:
+ mdiobus_free(fep->mii_bus);
+err_out:
+ return err;
}
- *s = status;
+static void fec_enet_mii_remove(struct fec_enet_private *fep)
+{
+ if (fep->phy_dev)
+ phy_disconnect(fep->phy_dev);
+ mdiobus_unregister(fep->mii_bus);
+ kfree(fep->mii_bus->irq);
+ mdiobus_free(fep->mii_bus);
}
-static phy_cmd_t const phy_cmd_qs6612_config[] = {
- /* The PHY powers up isolated on the RPX,
- * so send a command to allow operation.
- */
- { mk_mii_write(MII_QS6612_PCR, 0x0dc0), NULL },
-
- /* parse cr and anar to get some info */
- { mk_mii_read(MII_REG_CR), mii_parse_cr },
- { mk_mii_read(MII_REG_ANAR), mii_parse_anar },
- { mk_mii_end, }
- };
-static phy_cmd_t const phy_cmd_qs6612_startup[] = { /* enable interrupts */
- { mk_mii_write(MII_QS6612_IMR, 0x003a), NULL },
- { mk_mii_write(MII_REG_CR, 0x1200), NULL }, /* autonegotiate */
- { mk_mii_end, }
- };
-static phy_cmd_t const phy_cmd_qs6612_ack_int[] = {
- /* we need to read ISR, SR and ANER to acknowledge */
- { mk_mii_read(MII_QS6612_ISR), NULL },
- { mk_mii_read(MII_REG_SR), mii_parse_sr },
- { mk_mii_read(MII_REG_ANER), NULL },
-
- /* read pcr to get info */
- { mk_mii_read(MII_QS6612_PCR), mii_parse_qs6612_pcr },
- { mk_mii_end, }
- };
-static phy_cmd_t const phy_cmd_qs6612_shutdown[] = { /* disable interrupts */
- { mk_mii_write(MII_QS6612_IMR, 0x0000), NULL },
- { mk_mii_end, }
- };
-static phy_info_t const phy_info_qs6612 = {
- .id = 0x00181440,
- .name = "QS6612",
- .config = phy_cmd_qs6612_config,
- .startup = phy_cmd_qs6612_startup,
- .ack_int = phy_cmd_qs6612_ack_int,
- .shutdown = phy_cmd_qs6612_shutdown
-};
-
-/* ------------------------------------------------------------------------- */
-/* AMD AM79C874 phy */
+static int fec_enet_get_settings(struct net_device *dev,
+ struct ethtool_cmd *cmd)
+{
+ struct fec_enet_private *fep = netdev_priv(dev);
+ struct phy_device *phydev = fep->phy_dev;
-/* register definitions for the 874 */
+ if (!phydev)
+ return -ENODEV;
-#define MII_AM79C874_MFR 16 /* Miscellaneous Feature Register */
-#define MII_AM79C874_ICSR 17 /* Interrupt/Status Register */
-#define MII_AM79C874_DR 18 /* Diagnostic Register */
-#define MII_AM79C874_PMLR 19 /* Power and Loopback Register */
-#define MII_AM79C874_MCR 21 /* ModeControl Register */
-#define MII_AM79C874_DC 23 /* Disconnect Counter */
-#define MII_AM79C874_REC 24 /* Recieve Error Counter */
+ return phy_ethtool_gset(phydev, cmd);
+}
-static void mii_parse_am79c874_dr(uint mii_reg, struct net_device *dev)
+static int fec_enet_set_settings(struct net_device *dev,
+ struct ethtool_cmd *cmd)
{
struct fec_enet_private *fep = netdev_priv(dev);
- volatile uint *s = &(fep->phy_status);
- uint status;
+ struct phy_device *phydev = fep->phy_dev;
- status = *s & ~(PHY_STAT_SPMASK | PHY_STAT_ANC);
+ if (!phydev)
+ return -ENODEV;
- if (mii_reg & 0x0080)
- status |= PHY_STAT_ANC;
- if (mii_reg & 0x0400)
- status |= ((mii_reg & 0x0800) ? PHY_STAT_100FDX : PHY_STAT_100HDX);
- else
- status |= ((mii_reg & 0x0800) ? PHY_STAT_10FDX : PHY_STAT_10HDX);
+ return phy_ethtool_sset(phydev, cmd);
+}
+
+static void fec_enet_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *info)
+{
+ struct fec_enet_private *fep = netdev_priv(dev);
- *s = status;
+ strcpy(info->driver, fep->pdev->dev.driver->name);
+ strcpy(info->version, "Revision: 1.0");
+ strcpy(info->bus_info, dev_name(&dev->dev));
}
-static phy_cmd_t const phy_cmd_am79c874_config[] = {
- { mk_mii_read(MII_REG_CR), mii_parse_cr },
- { mk_mii_read(MII_REG_ANAR), mii_parse_anar },
- { mk_mii_read(MII_AM79C874_DR), mii_parse_am79c874_dr },
- { mk_mii_end, }
- };
-static phy_cmd_t const phy_cmd_am79c874_startup[] = { /* enable interrupts */
- { mk_mii_write(MII_AM79C874_ICSR, 0xff00), NULL },
- { mk_mii_write(MII_REG_CR, 0x1200), NULL }, /* autonegotiate */
- { mk_mii_read(MII_REG_SR), mii_parse_sr },
- { mk_mii_end, }
- };
-static phy_cmd_t const phy_cmd_am79c874_ack_int[] = {
- /* find out the current status */
- { mk_mii_read(MII_REG_SR), mii_parse_sr },
- { mk_mii_read(MII_AM79C874_DR), mii_parse_am79c874_dr },
- /* we only need to read ISR to acknowledge */
- { mk_mii_read(MII_AM79C874_ICSR), NULL },
- { mk_mii_end, }
- };
-static phy_cmd_t const phy_cmd_am79c874_shutdown[] = { /* disable interrupts */
- { mk_mii_write(MII_AM79C874_ICSR, 0x0000), NULL },
- { mk_mii_end, }
- };
-static phy_info_t const phy_info_am79c874 = {
- .id = 0x00022561,
- .name = "AM79C874",
- .config = phy_cmd_am79c874_config,
- .startup = phy_cmd_am79c874_startup,
- .ack_int = phy_cmd_am79c874_ack_int,
- .shutdown = phy_cmd_am79c874_shutdown
+static struct ethtool_ops fec_enet_ethtool_ops = {
+ .get_settings = fec_enet_get_settings,
+ .set_settings = fec_enet_set_settings,
+ .get_drvinfo = fec_enet_get_drvinfo,
+ .get_link = ethtool_op_get_link,
};
+static int fec_enet_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+{
+ struct fec_enet_private *fep = netdev_priv(dev);
+ struct phy_device *phydev = fep->phy_dev;
-/* ------------------------------------------------------------------------- */
-/* Kendin KS8721BL phy */
-
-/* register definitions for the 8721 */
-
-#define MII_KS8721BL_RXERCR 21
-#define MII_KS8721BL_ICSR 27
-#define MII_KS8721BL_PHYCR 31
-
-static phy_cmd_t const phy_cmd_ks8721bl_config[] = {
- { mk_mii_read(MII_REG_CR), mii_parse_cr },
- { mk_mii_read(MII_REG_ANAR), mii_parse_anar },
- { mk_mii_end, }
- };
-static phy_cmd_t const phy_cmd_ks8721bl_startup[] = { /* enable interrupts */
- { mk_mii_write(MII_KS8721BL_ICSR, 0xff00), NULL },
- { mk_mii_write(MII_REG_CR, 0x1200), NULL }, /* autonegotiate */
- { mk_mii_read(MII_REG_SR), mii_parse_sr },
- { mk_mii_end, }
- };
-static phy_cmd_t const phy_cmd_ks8721bl_ack_int[] = {
- /* find out the current status */
- { mk_mii_read(MII_REG_SR), mii_parse_sr },
- /* we only need to read ISR to acknowledge */
- { mk_mii_read(MII_KS8721BL_ICSR), NULL },
- { mk_mii_end, }
- };
-static phy_cmd_t const phy_cmd_ks8721bl_shutdown[] = { /* disable interrupts */
- { mk_mii_write(MII_KS8721BL_ICSR, 0x0000), NULL },
- { mk_mii_end, }
- };
-static phy_info_t const phy_info_ks8721bl = {
- .id = 0x00022161,
- .name = "KS8721BL",
- .config = phy_cmd_ks8721bl_config,
- .startup = phy_cmd_ks8721bl_startup,
- .ack_int = phy_cmd_ks8721bl_ack_int,
- .shutdown = phy_cmd_ks8721bl_shutdown
-};
+ if (!netif_running(dev))
+ return -EINVAL;
-/* ------------------------------------------------------------------------- */
-/* register definitions for the DP83848 */
+ if (!phydev)
+ return -ENODEV;
-#define MII_DP8384X_PHYSTST 16 /* PHY Status Register */
+ return phy_mii_ioctl(phydev, if_mii(rq), cmd);
+}
-static void mii_parse_dp8384x_sr2(uint mii_reg, struct net_device *dev)
+static void fec_enet_free_buffers(struct net_device *dev)
{
struct fec_enet_private *fep = netdev_priv(dev);
- volatile uint *s = &(fep->phy_status);
-
- *s &= ~(PHY_STAT_SPMASK | PHY_STAT_LINK | PHY_STAT_ANC);
-
- /* Link up */
- if (mii_reg & 0x0001) {
- fep->link = 1;
- *s |= PHY_STAT_LINK;
- } else
- fep->link = 0;
- /* Status of link */
- if (mii_reg & 0x0010) /* Autonegotioation complete */
- *s |= PHY_STAT_ANC;
- if (mii_reg & 0x0002) { /* 10MBps? */
- if (mii_reg & 0x0004) /* Full Duplex? */
- *s |= PHY_STAT_10FDX;
- else
- *s |= PHY_STAT_10HDX;
- } else { /* 100 Mbps? */
- if (mii_reg & 0x0004) /* Full Duplex? */
- *s |= PHY_STAT_100FDX;
- else
- *s |= PHY_STAT_100HDX;
+ int i;
+ struct sk_buff *skb;
+ struct bufdesc *bdp;
+
+ bdp = fep->rx_bd_base;
+ for (i = 0; i < RX_RING_SIZE; i++) {
+ skb = fep->rx_skbuff[i];
+
+ if (bdp->cbd_bufaddr)
+ dma_unmap_single(&dev->dev, bdp->cbd_bufaddr,
+ FEC_ENET_RX_FRSIZE, DMA_FROM_DEVICE);
+ if (skb)
+ dev_kfree_skb(skb);
+ bdp++;
}
- if (mii_reg & 0x0008)
- *s |= PHY_STAT_FAULT;
+
+ bdp = fep->tx_bd_base;
+ for (i = 0; i < TX_RING_SIZE; i++)
+ kfree(fep->tx_bounce[i]);
}
-static phy_info_t phy_info_dp83848= {
- 0x020005c9,
- "DP83848",
+static int fec_enet_alloc_buffers(struct net_device *dev)
+{
+ struct fec_enet_private *fep = netdev_priv(dev);
+ int i;
+ struct sk_buff *skb;
+ struct bufdesc *bdp;
- (const phy_cmd_t []) { /* config */
- { mk_mii_read(MII_REG_CR), mii_parse_cr },
- { mk_mii_read(MII_REG_ANAR), mii_parse_anar },
- { mk_mii_read(MII_DP8384X_PHYSTST), mii_parse_dp8384x_sr2 },
- { mk_mii_end, }
- },
- (const phy_cmd_t []) { /* startup - enable interrupts */
- { mk_mii_write(MII_REG_CR, 0x1200), NULL }, /* autonegotiate */
- { mk_mii_read(MII_REG_SR), mii_parse_sr },
- { mk_mii_end, }
- },
- (const phy_cmd_t []) { /* ack_int - never happens, no interrupt */
- { mk_mii_end, }
- },
- (const phy_cmd_t []) { /* shutdown */
- { mk_mii_end, }
- },
-};
+ bdp = fep->rx_bd_base;
+ for (i = 0; i < RX_RING_SIZE; i++) {
+ skb = dev_alloc_skb(FEC_ENET_RX_FRSIZE);
+ if (!skb) {
+ fec_enet_free_buffers(dev);
+ return -ENOMEM;
+ }
+ fep->rx_skbuff[i] = skb;
-/* ------------------------------------------------------------------------- */
+ bdp->cbd_bufaddr = dma_map_single(&dev->dev, skb->data,
+ FEC_ENET_RX_FRSIZE, DMA_FROM_DEVICE);
+ bdp->cbd_sc = BD_ENET_RX_EMPTY;
+ bdp++;
+ }
-static phy_info_t const * const phy_info[] = {
- &phy_info_lxt970,
- &phy_info_lxt971,
- &phy_info_qs6612,
- &phy_info_am79c874,
- &phy_info_ks8721bl,
- &phy_info_dp83848,
- NULL
-};
+ /* Set the last buffer to wrap. */
+ bdp--;
+ bdp->cbd_sc |= BD_SC_WRAP;
-/* ------------------------------------------------------------------------- */
-#ifdef HAVE_mii_link_interrupt
-static irqreturn_t
-mii_link_interrupt(int irq, void * dev_id);
-#endif
+ bdp = fep->tx_bd_base;
+ for (i = 0; i < TX_RING_SIZE; i++) {
+ fep->tx_bounce[i] = kmalloc(FEC_ENET_TX_FRSIZE, GFP_KERNEL);
-#if defined(CONFIG_M5272)
-/*
- * Code specific to Coldfire 5272 setup.
- */
-static void __inline__ fec_request_intrs(struct net_device *dev)
-{
- volatile unsigned long *icrp;
- static const struct idesc {
- char *name;
- unsigned short irq;
- irq_handler_t handler;
- } *idp, id[] = {
- { "fec(RX)", 86, fec_enet_interrupt },
- { "fec(TX)", 87, fec_enet_interrupt },
- { "fec(OTHER)", 88, fec_enet_interrupt },
- { "fec(MII)", 66, mii_link_interrupt },
- { NULL },
- };
-
- /* Setup interrupt handlers. */
- for (idp = id; idp->name; idp++) {
- if (request_irq(idp->irq, idp->handler, IRQF_DISABLED, idp->name, dev) != 0)
- printk("FEC: Could not allocate %s IRQ(%d)!\n", idp->name, idp->irq);
+ bdp->cbd_sc = 0;
+ bdp->cbd_bufaddr = 0;
+ bdp++;
}
- /* Unmask interrupt at ColdFire 5272 SIM */
- icrp = (volatile unsigned long *) (MCF_MBAR + MCFSIM_ICR3);
- *icrp = 0x00000ddd;
- icrp = (volatile unsigned long *) (MCF_MBAR + MCFSIM_ICR1);
- *icrp = 0x0d000000;
+ /* Set the last buffer to wrap. */
+ bdp--;
+ bdp->cbd_sc |= BD_SC_WRAP;
+
+ return 0;
}
-static void __inline__ fec_set_mii(struct net_device *dev, struct fec_enet_private *fep)
+static int
+fec_enet_open(struct net_device *dev)
{
- volatile fec_t *fecp;
-
- fecp = fep->hwp;
- fecp->fec_r_cntrl = OPT_FRAME_SIZE | 0x04;
- fecp->fec_x_cntrl = 0x00;
+ struct fec_enet_private *fep = netdev_priv(dev);
+ int ret;
- /*
- * Set MII speed to 2.5 MHz
- * See 5272 manual section 11.5.8: MSCR
+ /* I should reset the ring buffers here, but I don't yet know
+ * a simple way to do that.
*/
- fep->phy_speed = ((((MCF_CLK / 4) / (2500000 / 10)) + 5) / 10) * 2;
- fecp->fec_mii_speed = fep->phy_speed;
- fec_restart(dev, 0);
-}
-
-static void __inline__ fec_get_mac(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- volatile fec_t *fecp;
- unsigned char *iap, tmpaddr[ETH_ALEN];
-
- fecp = fep->hwp;
-
- if (FEC_FLASHMAC) {
- /*
- * Get MAC address from FLASH.
- * If it is all 1's or 0's, use the default.
- */
- iap = (unsigned char *)FEC_FLASHMAC;
- if ((iap[0] == 0) && (iap[1] == 0) && (iap[2] == 0) &&
- (iap[3] == 0) && (iap[4] == 0) && (iap[5] == 0))
- iap = fec_mac_default;
- if ((iap[0] == 0xff) && (iap[1] == 0xff) && (iap[2] == 0xff) &&
- (iap[3] == 0xff) && (iap[4] == 0xff) && (iap[5] == 0xff))
- iap = fec_mac_default;
- } else {
- *((unsigned long *) &tmpaddr[0]) = fecp->fec_addr_low;
- *((unsigned short *) &tmpaddr[4]) = (fecp->fec_addr_high >> 16);
- iap = &tmpaddr[0];
- }
-
- memcpy(dev->dev_addr, iap, ETH_ALEN);
-
- /* Adjust MAC if using default MAC address */
- if (iap == fec_mac_default)
- dev->dev_addr[ETH_ALEN-1] = fec_mac_default[ETH_ALEN-1] + fep->index;
-}
-
-static void __inline__ fec_disable_phy_intr(void)
-{
- volatile unsigned long *icrp;
- icrp = (volatile unsigned long *) (MCF_MBAR + MCFSIM_ICR1);
- *icrp = 0x08000000;
-}
-
-static void __inline__ fec_phy_ack_intr(void)
-{
- volatile unsigned long *icrp;
- /* Acknowledge the interrupt */
- icrp = (volatile unsigned long *) (MCF_MBAR + MCFSIM_ICR1);
- *icrp = 0x0d000000;
-}
-
-/* ------------------------------------------------------------------------- */
-
-#elif defined(CONFIG_M523x) || defined(CONFIG_M527x) || defined(CONFIG_M528x)
-
-/*
- * Code specific to Coldfire 5230/5231/5232/5234/5235,
- * the 5270/5271/5274/5275 and 5280/5282 setups.
- */
-static void __inline__ fec_request_intrs(struct net_device *dev)
-{
- struct fec_enet_private *fep;
- int b;
- static const struct idesc {
- char *name;
- unsigned short irq;
- } *idp, id[] = {
- { "fec(TXF)", 23 },
- { "fec(RXF)", 27 },
- { "fec(MII)", 29 },
- { NULL },
- };
-
- fep = netdev_priv(dev);
- b = (fep->index) ? 128 : 64;
-
- /* Setup interrupt handlers. */
- for (idp = id; idp->name; idp++) {
- if (request_irq(b+idp->irq, fec_enet_interrupt, IRQF_DISABLED, idp->name, dev) != 0)
- printk("FEC: Could not allocate %s IRQ(%d)!\n", idp->name, b+idp->irq);
- }
-
- /* Unmask interrupts at ColdFire 5280/5282 interrupt controller */
- {
- volatile unsigned char *icrp;
- volatile unsigned long *imrp;
- int i, ilip;
-
- b = (fep->index) ? MCFICM_INTC1 : MCFICM_INTC0;
- icrp = (volatile unsigned char *) (MCF_IPSBAR + b +
- MCFINTC_ICR0);
- for (i = 23, ilip = 0x28; (i < 36); i++)
- icrp[i] = ilip--;
-
- imrp = (volatile unsigned long *) (MCF_IPSBAR + b +
- MCFINTC_IMRH);
- *imrp &= ~0x0000000f;
- imrp = (volatile unsigned long *) (MCF_IPSBAR + b +
- MCFINTC_IMRL);
- *imrp &= ~0xff800001;
- }
-
-#if defined(CONFIG_M528x)
- /* Set up gpio outputs for MII lines */
- {
- volatile u16 *gpio_paspar;
- volatile u8 *gpio_pehlpar;
-
- gpio_paspar = (volatile u16 *) (MCF_IPSBAR + 0x100056);
- gpio_pehlpar = (volatile u16 *) (MCF_IPSBAR + 0x100058);
- *gpio_paspar |= 0x0f00;
- *gpio_pehlpar = 0xc0;
- }
-#endif
-
-#if defined(CONFIG_M527x)
- /* Set up gpio outputs for MII lines */
- {
- volatile u8 *gpio_par_fec;
- volatile u16 *gpio_par_feci2c;
-
- gpio_par_feci2c = (volatile u16 *)(MCF_IPSBAR + 0x100082);
- /* Set up gpio outputs for FEC0 MII lines */
- gpio_par_fec = (volatile u8 *)(MCF_IPSBAR + 0x100078);
-
- *gpio_par_feci2c |= 0x0f00;
- *gpio_par_fec |= 0xc0;
-
-#if defined(CONFIG_FEC2)
- /* Set up gpio outputs for FEC1 MII lines */
- gpio_par_fec = (volatile u8 *)(MCF_IPSBAR + 0x100079);
-
- *gpio_par_feci2c |= 0x00a0;
- *gpio_par_fec |= 0xc0;
-#endif /* CONFIG_FEC2 */
- }
-#endif /* CONFIG_M527x */
-}
-
-static void __inline__ fec_set_mii(struct net_device *dev, struct fec_enet_private *fep)
-{
- volatile fec_t *fecp;
-
- fecp = fep->hwp;
- fecp->fec_r_cntrl = OPT_FRAME_SIZE | 0x04;
- fecp->fec_x_cntrl = 0x00;
-
- /*
- * Set MII speed to 2.5 MHz
- * See 5282 manual section 17.5.4.7: MSCR
- */
- fep->phy_speed = ((((MCF_CLK / 2) / (2500000 / 10)) + 5) / 10) * 2;
- fecp->fec_mii_speed = fep->phy_speed;
-
- fec_restart(dev, 0);
-}
-
-static void __inline__ fec_get_mac(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- volatile fec_t *fecp;
- unsigned char *iap, tmpaddr[ETH_ALEN];
-
- fecp = fep->hwp;
-
- if (FEC_FLASHMAC) {
- /*
- * Get MAC address from FLASH.
- * If it is all 1's or 0's, use the default.
- */
- iap = FEC_FLASHMAC;
- if ((iap[0] == 0) && (iap[1] == 0) && (iap[2] == 0) &&
- (iap[3] == 0) && (iap[4] == 0) && (iap[5] == 0))
- iap = fec_mac_default;
- if ((iap[0] == 0xff) && (iap[1] == 0xff) && (iap[2] == 0xff) &&
- (iap[3] == 0xff) && (iap[4] == 0xff) && (iap[5] == 0xff))
- iap = fec_mac_default;
- } else {
- *((unsigned long *) &tmpaddr[0]) = fecp->fec_addr_low;
- *((unsigned short *) &tmpaddr[4]) = (fecp->fec_addr_high >> 16);
- iap = &tmpaddr[0];
- }
-
- memcpy(dev->dev_addr, iap, ETH_ALEN);
-
- /* Adjust MAC if using default MAC address */
- if (iap == fec_mac_default)
- dev->dev_addr[ETH_ALEN-1] = fec_mac_default[ETH_ALEN-1] + fep->index;
-}
-
-static void __inline__ fec_disable_phy_intr(void)
-{
-}
-
-static void __inline__ fec_phy_ack_intr(void)
-{
-}
-
-/* ------------------------------------------------------------------------- */
-
-#elif defined(CONFIG_M520x)
-
-/*
- * Code specific to Coldfire 520x
- */
-static void __inline__ fec_request_intrs(struct net_device *dev)
-{
- struct fec_enet_private *fep;
- int b;
- static const struct idesc {
- char *name;
- unsigned short irq;
- } *idp, id[] = {
- { "fec(TXF)", 23 },
- { "fec(RXF)", 27 },
- { "fec(MII)", 29 },
- { NULL },
- };
-
- fep = netdev_priv(dev);
- b = 64 + 13;
-
- /* Setup interrupt handlers. */
- for (idp = id; idp->name; idp++) {
- if (request_irq(b+idp->irq, fec_enet_interrupt, IRQF_DISABLED, idp->name,dev) != 0)
- printk("FEC: Could not allocate %s IRQ(%d)!\n", idp->name, b+idp->irq);
- }
-
- /* Unmask interrupts at ColdFire interrupt controller */
- {
- volatile unsigned char *icrp;
- volatile unsigned long *imrp;
-
- icrp = (volatile unsigned char *) (MCF_IPSBAR + MCFICM_INTC0 +
- MCFINTC_ICR0);
- for (b = 36; (b < 49); b++)
- icrp[b] = 0x04;
- imrp = (volatile unsigned long *) (MCF_IPSBAR + MCFICM_INTC0 +
- MCFINTC_IMRH);
- *imrp &= ~0x0001FFF0;
- }
- *(volatile unsigned char *)(MCF_IPSBAR + MCF_GPIO_PAR_FEC) |= 0xf0;
- *(volatile unsigned char *)(MCF_IPSBAR + MCF_GPIO_PAR_FECI2C) |= 0x0f;
-}
-
-static void __inline__ fec_set_mii(struct net_device *dev, struct fec_enet_private *fep)
-{
- volatile fec_t *fecp;
-
- fecp = fep->hwp;
- fecp->fec_r_cntrl = OPT_FRAME_SIZE | 0x04;
- fecp->fec_x_cntrl = 0x00;
-
- /*
- * Set MII speed to 2.5 MHz
- * See 5282 manual section 17.5.4.7: MSCR
- */
- fep->phy_speed = ((((MCF_CLK / 2) / (2500000 / 10)) + 5) / 10) * 2;
- fecp->fec_mii_speed = fep->phy_speed;
-
- fec_restart(dev, 0);
-}
-
-static void __inline__ fec_get_mac(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- volatile fec_t *fecp;
- unsigned char *iap, tmpaddr[ETH_ALEN];
-
- fecp = fep->hwp;
-
- if (FEC_FLASHMAC) {
- /*
- * Get MAC address from FLASH.
- * If it is all 1's or 0's, use the default.
- */
- iap = FEC_FLASHMAC;
- if ((iap[0] == 0) && (iap[1] == 0) && (iap[2] == 0) &&
- (iap[3] == 0) && (iap[4] == 0) && (iap[5] == 0))
- iap = fec_mac_default;
- if ((iap[0] == 0xff) && (iap[1] == 0xff) && (iap[2] == 0xff) &&
- (iap[3] == 0xff) && (iap[4] == 0xff) && (iap[5] == 0xff))
- iap = fec_mac_default;
- } else {
- *((unsigned long *) &tmpaddr[0]) = fecp->fec_addr_low;
- *((unsigned short *) &tmpaddr[4]) = (fecp->fec_addr_high >> 16);
- iap = &tmpaddr[0];
- }
-
- memcpy(dev->dev_addr, iap, ETH_ALEN);
-
- /* Adjust MAC if using default MAC address */
- if (iap == fec_mac_default)
- dev->dev_addr[ETH_ALEN-1] = fec_mac_default[ETH_ALEN-1] + fep->index;
-}
-
-static void __inline__ fec_disable_phy_intr(void)
-{
-}
-
-static void __inline__ fec_phy_ack_intr(void)
-{
-}
-
-/* ------------------------------------------------------------------------- */
-
-#elif defined(CONFIG_M532x)
-/*
- * Code specific for M532x
- */
-static void __inline__ fec_request_intrs(struct net_device *dev)
-{
- struct fec_enet_private *fep;
- int b;
- static const struct idesc {
- char *name;
- unsigned short irq;
- } *idp, id[] = {
- { "fec(TXF)", 36 },
- { "fec(RXF)", 40 },
- { "fec(MII)", 42 },
- { NULL },
- };
-
- fep = netdev_priv(dev);
- b = (fep->index) ? 128 : 64;
-
- /* Setup interrupt handlers. */
- for (idp = id; idp->name; idp++) {
- if (request_irq(b+idp->irq, fec_enet_interrupt, IRQF_DISABLED, idp->name,dev) != 0)
- printk("FEC: Could not allocate %s IRQ(%d)!\n",
- idp->name, b+idp->irq);
- }
-
- /* Unmask interrupts */
- MCF_INTC0_ICR36 = 0x2;
- MCF_INTC0_ICR37 = 0x2;
- MCF_INTC0_ICR38 = 0x2;
- MCF_INTC0_ICR39 = 0x2;
- MCF_INTC0_ICR40 = 0x2;
- MCF_INTC0_ICR41 = 0x2;
- MCF_INTC0_ICR42 = 0x2;
- MCF_INTC0_ICR43 = 0x2;
- MCF_INTC0_ICR44 = 0x2;
- MCF_INTC0_ICR45 = 0x2;
- MCF_INTC0_ICR46 = 0x2;
- MCF_INTC0_ICR47 = 0x2;
- MCF_INTC0_ICR48 = 0x2;
-
- MCF_INTC0_IMRH &= ~(
- MCF_INTC_IMRH_INT_MASK36 |
- MCF_INTC_IMRH_INT_MASK37 |
- MCF_INTC_IMRH_INT_MASK38 |
- MCF_INTC_IMRH_INT_MASK39 |
- MCF_INTC_IMRH_INT_MASK40 |
- MCF_INTC_IMRH_INT_MASK41 |
- MCF_INTC_IMRH_INT_MASK42 |
- MCF_INTC_IMRH_INT_MASK43 |
- MCF_INTC_IMRH_INT_MASK44 |
- MCF_INTC_IMRH_INT_MASK45 |
- MCF_INTC_IMRH_INT_MASK46 |
- MCF_INTC_IMRH_INT_MASK47 |
- MCF_INTC_IMRH_INT_MASK48 );
-
- /* Set up gpio outputs for MII lines */
- MCF_GPIO_PAR_FECI2C |= (0 |
- MCF_GPIO_PAR_FECI2C_PAR_MDC_EMDC |
- MCF_GPIO_PAR_FECI2C_PAR_MDIO_EMDIO);
- MCF_GPIO_PAR_FEC = (0 |
- MCF_GPIO_PAR_FEC_PAR_FEC_7W_FEC |
- MCF_GPIO_PAR_FEC_PAR_FEC_MII_FEC);
-}
-
-static void __inline__ fec_set_mii(struct net_device *dev, struct fec_enet_private *fep)
-{
- volatile fec_t *fecp;
-
- fecp = fep->hwp;
- fecp->fec_r_cntrl = OPT_FRAME_SIZE | 0x04;
- fecp->fec_x_cntrl = 0x00;
-
- /*
- * Set MII speed to 2.5 MHz
- */
- fep->phy_speed = ((((MCF_CLK / 2) / (2500000 / 10)) + 5) / 10) * 2;
- fecp->fec_mii_speed = fep->phy_speed;
-
- fec_restart(dev, 0);
-}
-
-static void __inline__ fec_get_mac(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- volatile fec_t *fecp;
- unsigned char *iap, tmpaddr[ETH_ALEN];
-
- fecp = fep->hwp;
-
- if (FEC_FLASHMAC) {
- /*
- * Get MAC address from FLASH.
- * If it is all 1's or 0's, use the default.
- */
- iap = FEC_FLASHMAC;
- if ((iap[0] == 0) && (iap[1] == 0) && (iap[2] == 0) &&
- (iap[3] == 0) && (iap[4] == 0) && (iap[5] == 0))
- iap = fec_mac_default;
- if ((iap[0] == 0xff) && (iap[1] == 0xff) && (iap[2] == 0xff) &&
- (iap[3] == 0xff) && (iap[4] == 0xff) && (iap[5] == 0xff))
- iap = fec_mac_default;
- } else {
- *((unsigned long *) &tmpaddr[0]) = fecp->fec_addr_low;
- *((unsigned short *) &tmpaddr[4]) = (fecp->fec_addr_high >> 16);
- iap = &tmpaddr[0];
- }
-
- memcpy(dev->dev_addr, iap, ETH_ALEN);
-
- /* Adjust MAC if using default MAC address */
- if (iap == fec_mac_default)
- dev->dev_addr[ETH_ALEN-1] = fec_mac_default[ETH_ALEN-1] + fep->index;
-}
-
-static void __inline__ fec_disable_phy_intr(void)
-{
-}
-
-static void __inline__ fec_phy_ack_intr(void)
-{
-}
-
-#endif
-
-/* ------------------------------------------------------------------------- */
-
-static void mii_display_status(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
- volatile uint *s = &(fep->phy_status);
-
- if (!fep->link && !fep->old_link) {
- /* Link is still down - don't print anything */
- return;
- }
-
- printk("%s: status: ", dev->name);
-
- if (!fep->link) {
- printk("link down");
- } else {
- printk("link up");
-
- switch(*s & PHY_STAT_SPMASK) {
- case PHY_STAT_100FDX: printk(", 100MBit Full Duplex"); break;
- case PHY_STAT_100HDX: printk(", 100MBit Half Duplex"); break;
- case PHY_STAT_10FDX: printk(", 10MBit Full Duplex"); break;
- case PHY_STAT_10HDX: printk(", 10MBit Half Duplex"); break;
- default:
- printk(", Unknown speed/duplex");
- }
-
- if (*s & PHY_STAT_ANC)
- printk(", auto-negotiation complete");
- }
-
- if (*s & PHY_STAT_FAULT)
- printk(", remote fault");
-
- printk(".\n");
-}
-
-static void mii_display_config(struct work_struct *work)
-{
- struct fec_enet_private *fep = container_of(work, struct fec_enet_private, phy_task);
- struct net_device *dev = fep->netdev;
- uint status = fep->phy_status;
-
- /*
- ** When we get here, phy_task is already removed from
- ** the workqueue. It is thus safe to allow to reuse it.
- */
- fep->mii_phy_task_queued = 0;
- printk("%s: config: auto-negotiation ", dev->name);
-
- if (status & PHY_CONF_ANE)
- printk("on");
- else
- printk("off");
-
- if (status & PHY_CONF_100FDX)
- printk(", 100FDX");
- if (status & PHY_CONF_100HDX)
- printk(", 100HDX");
- if (status & PHY_CONF_10FDX)
- printk(", 10FDX");
- if (status & PHY_CONF_10HDX)
- printk(", 10HDX");
- if (!(status & PHY_CONF_SPMASK))
- printk(", No speed/duplex selected?");
-
- if (status & PHY_CONF_LOOP)
- printk(", loopback enabled");
-
- printk(".\n");
-
- fep->sequence_done = 1;
-}
-
-static void mii_relink(struct work_struct *work)
-{
- struct fec_enet_private *fep = container_of(work, struct fec_enet_private, phy_task);
- struct net_device *dev = fep->netdev;
- int duplex;
-
- /*
- ** When we get here, phy_task is already removed from
- ** the workqueue. It is thus safe to allow to reuse it.
- */
- fep->mii_phy_task_queued = 0;
- fep->link = (fep->phy_status & PHY_STAT_LINK) ? 1 : 0;
- mii_display_status(dev);
- fep->old_link = fep->link;
-
- if (fep->link) {
- duplex = 0;
- if (fep->phy_status
- & (PHY_STAT_100FDX | PHY_STAT_10FDX))
- duplex = 1;
- fec_restart(dev, duplex);
- } else
- fec_stop(dev);
-
-#if 0
- enable_irq(fep->mii_irq);
-#endif
-
-}
-
-/* mii_queue_relink is called in interrupt context from mii_link_interrupt */
-static void mii_queue_relink(uint mii_reg, struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
-
- /*
- ** We cannot queue phy_task twice in the workqueue. It
- ** would cause an endless loop in the workqueue.
- ** Fortunately, if the last mii_relink entry has not yet been
- ** executed now, it will do the job for the current interrupt,
- ** which is just what we want.
- */
- if (fep->mii_phy_task_queued)
- return;
-
- fep->mii_phy_task_queued = 1;
- INIT_WORK(&fep->phy_task, mii_relink);
- schedule_work(&fep->phy_task);
-}
-
-/* mii_queue_config is called in interrupt context from fec_enet_mii */
-static void mii_queue_config(uint mii_reg, struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
-
- if (fep->mii_phy_task_queued)
- return;
-
- fep->mii_phy_task_queued = 1;
- INIT_WORK(&fep->phy_task, mii_display_config);
- schedule_work(&fep->phy_task);
-}
-
-phy_cmd_t const phy_cmd_relink[] = {
- { mk_mii_read(MII_REG_CR), mii_queue_relink },
- { mk_mii_end, }
- };
-phy_cmd_t const phy_cmd_config[] = {
- { mk_mii_read(MII_REG_CR), mii_queue_config },
- { mk_mii_end, }
- };
-
-/* Read remainder of PHY ID.
-*/
-static void
-mii_discover_phy3(uint mii_reg, struct net_device *dev)
-{
- struct fec_enet_private *fep;
- int i;
-
- fep = netdev_priv(dev);
- fep->phy_id |= (mii_reg & 0xffff);
- printk("fec: PHY @ 0x%x, ID 0x%08x", fep->phy_addr, fep->phy_id);
-
- for(i = 0; phy_info[i]; i++) {
- if(phy_info[i]->id == (fep->phy_id >> 4))
- break;
- }
-
- if (phy_info[i])
- printk(" -- %s\n", phy_info[i]->name);
- else
- printk(" -- unknown PHY!\n");
-
- fep->phy = phy_info[i];
- fep->phy_id_done = 1;
-}
-
-/* Scan all of the MII PHY addresses looking for someone to respond
- * with a valid ID. This usually happens quickly.
- */
-static void
-mii_discover_phy(uint mii_reg, struct net_device *dev)
-{
- struct fec_enet_private *fep;
- volatile fec_t *fecp;
- uint phytype;
-
- fep = netdev_priv(dev);
- fecp = fep->hwp;
-
- if (fep->phy_addr < 32) {
- if ((phytype = (mii_reg & 0xffff)) != 0xffff && phytype != 0) {
-
- /* Got first part of ID, now get remainder.
- */
- fep->phy_id = phytype << 16;
- mii_queue(dev, mk_mii_read(MII_REG_PHYIR2),
- mii_discover_phy3);
- } else {
- fep->phy_addr++;
- mii_queue(dev, mk_mii_read(MII_REG_PHYIR1),
- mii_discover_phy);
- }
- } else {
- printk("FEC: No PHY device found.\n");
- /* Disable external MII interface */
- fecp->fec_mii_speed = fep->phy_speed = 0;
- fec_disable_phy_intr();
- }
-}
-
-/* This interrupt occurs when the PHY detects a link change.
-*/
-#ifdef HAVE_mii_link_interrupt
-static irqreturn_t
-mii_link_interrupt(int irq, void * dev_id)
-{
- struct net_device *dev = dev_id;
- struct fec_enet_private *fep = netdev_priv(dev);
-
- fec_phy_ack_intr();
-
-#if 0
- disable_irq(fep->mii_irq); /* disable now, enable later */
-#endif
-
- mii_do_cmd(dev, fep->phy->ack_int);
- mii_do_cmd(dev, phy_cmd_relink); /* restart and display status */
-
- return IRQ_HANDLED;
-}
-#endif
-
-static int
-fec_enet_open(struct net_device *dev)
-{
- struct fec_enet_private *fep = netdev_priv(dev);
-
- /* I should reset the ring buffers here, but I don't yet know
- * a simple way to do that.
- */
- fec_set_mac_address(dev);
-
- fep->sequence_done = 0;
- fep->link = 0;
-
- if (fep->phy) {
- mii_do_cmd(dev, fep->phy->ack_int);
- mii_do_cmd(dev, fep->phy->config);
- mii_do_cmd(dev, phy_cmd_config); /* display configuration */
-
- /* Poll until the PHY tells us its configuration
- * (not link state).
- * Request is initiated by mii_do_cmd above, but answer
- * comes by interrupt.
- * This should take about 25 usec per register at 2.5 MHz,
- * and we read approximately 5 registers.
- */
- while(!fep->sequence_done)
- schedule();
-
- mii_do_cmd(dev, fep->phy->startup);
-
- /* Set the initial link state to true. A lot of hardware
- * based on this device does not implement a PHY interrupt,
- * so we are never notified of link change.
- */
- fep->link = 1;
- } else {
- fep->link = 1; /* lets just try it and see */
- /* no phy, go full duplex, it's most likely a hub chip */
- fec_restart(dev, 1);
- }
+ ret = fec_enet_alloc_buffers(dev);
+ if (ret)
+ return ret;
+ /* schedule a link state check */
+ phy_start(fep->phy_dev);
netif_start_queue(dev);
fep->opened = 1;
- return 0; /* Success */
+ return 0;
}
static int
{
struct fec_enet_private *fep = netdev_priv(dev);
- /* Don't know what to do yet.
- */
+ /* Don't know what to do yet. */
fep->opened = 0;
+ phy_stop(fep->phy_dev);
netif_stop_queue(dev);
fec_stop(dev);
+ fec_enet_free_buffers(dev);
+
return 0;
}
static void set_multicast_list(struct net_device *dev)
{
- struct fec_enet_private *fep;
- volatile fec_t *ep;
- struct dev_mc_list *dmi;
- unsigned int i, j, bit, data, crc;
+ struct fec_enet_private *fep = netdev_priv(dev);
+ struct netdev_hw_addr *ha;
+ unsigned int i, bit, data, crc, tmp;
unsigned char hash;
- fep = netdev_priv(dev);
- ep = fep->hwp;
+ if (dev->flags & IFF_PROMISC) {
+ tmp = readl(fep->hwp + FEC_R_CNTRL);
+ tmp |= 0x8;
+ writel(tmp, fep->hwp + FEC_R_CNTRL);
+ return;
+ }
- if (dev->flags&IFF_PROMISC) {
- ep->fec_r_cntrl |= 0x0008;
- } else {
+ tmp = readl(fep->hwp + FEC_R_CNTRL);
+ tmp &= ~0x8;
+ writel(tmp, fep->hwp + FEC_R_CNTRL);
- ep->fec_r_cntrl &= ~0x0008;
+ if (dev->flags & IFF_ALLMULTI) {
+ /* Catch all multicast addresses, so set the
+ * filter to all 1's
+ */
+ writel(0xffffffff, fep->hwp + FEC_GRP_HASH_TABLE_HIGH);
+ writel(0xffffffff, fep->hwp + FEC_GRP_HASH_TABLE_LOW);
- if (dev->flags & IFF_ALLMULTI) {
- /* Catch all multicast addresses, so set the
- * filter to all 1's.
- */
- ep->fec_grp_hash_table_high = 0xffffffff;
- ep->fec_grp_hash_table_low = 0xffffffff;
- } else {
- /* Clear filter and add the addresses in hash register.
- */
- ep->fec_grp_hash_table_high = 0;
- ep->fec_grp_hash_table_low = 0;
-
- dmi = dev->mc_list;
-
- for (j = 0; j < dev->mc_count; j++, dmi = dmi->next)
- {
- /* Only support group multicast for now.
- */
- if (!(dmi->dmi_addr[0] & 1))
- continue;
-
- /* calculate crc32 value of mac address
- */
- crc = 0xffffffff;
-
- for (i = 0; i < dmi->dmi_addrlen; i++)
- {
- data = dmi->dmi_addr[i];
- for (bit = 0; bit < 8; bit++, data >>= 1)
- {
- crc = (crc >> 1) ^
- (((crc ^ data) & 1) ? CRC32_POLY : 0);
- }
- }
-
- /* only upper 6 bits (HASH_BITS) are used
- which point to specific bit in he hash registers
- */
- hash = (crc >> (32 - HASH_BITS)) & 0x3f;
-
- if (hash > 31)
- ep->fec_grp_hash_table_high |= 1 << (hash - 32);
- else
- ep->fec_grp_hash_table_low |= 1 << hash;
+ return;
+ }
+
+ /* Clear filter and add the addresses in hash register
+ */
+ writel(0, fep->hwp + FEC_GRP_HASH_TABLE_HIGH);
+ writel(0, fep->hwp + FEC_GRP_HASH_TABLE_LOW);
+
+ netdev_for_each_mc_addr(ha, dev) {
+ /* Only support group multicast for now */
+ if (!(ha->addr[0] & 1))
+ continue;
+
+ /* calculate crc32 value of mac address */
+ crc = 0xffffffff;
+
+ for (i = 0; i < dev->addr_len; i++) {
+ data = ha->addr[i];
+ for (bit = 0; bit < 8; bit++, data >>= 1) {
+ crc = (crc >> 1) ^
+ (((crc ^ data) & 1) ? CRC32_POLY : 0);
}
}
+
+ /* only upper 6 bits (HASH_BITS) are used
+ * which point to specific bit in he hash registers
+ */
+ hash = (crc >> (32 - HASH_BITS)) & 0x3f;
+
+ if (hash > 31) {
+ tmp = readl(fep->hwp + FEC_GRP_HASH_TABLE_HIGH);
+ tmp |= 1 << (hash - 32);
+ writel(tmp, fep->hwp + FEC_GRP_HASH_TABLE_HIGH);
+ } else {
+ tmp = readl(fep->hwp + FEC_GRP_HASH_TABLE_LOW);
+ tmp |= 1 << hash;
+ writel(tmp, fep->hwp + FEC_GRP_HASH_TABLE_LOW);
+ }
}
}
-/* Set a MAC change in hardware.
- */
-static void
-fec_set_mac_address(struct net_device *dev)
+/* Set a MAC change in hardware. */
+static int
+fec_set_mac_address(struct net_device *dev, void *p)
{
- volatile fec_t *fecp;
+ struct fec_enet_private *fep = netdev_priv(dev);
+ struct sockaddr *addr = p;
- fecp = ((struct fec_enet_private *)netdev_priv(dev))->hwp;
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
- /* Set station address. */
- fecp->fec_addr_low = dev->dev_addr[3] | (dev->dev_addr[2] << 8) |
- (dev->dev_addr[1] << 16) | (dev->dev_addr[0] << 24);
- fecp->fec_addr_high = (dev->dev_addr[5] << 16) |
- (dev->dev_addr[4] << 24);
+ memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
+ writel(dev->dev_addr[3] | (dev->dev_addr[2] << 8) |
+ (dev->dev_addr[1] << 16) | (dev->dev_addr[0] << 24),
+ fep->hwp + FEC_ADDR_LOW);
+ writel((dev->dev_addr[5] << 16) | (dev->dev_addr[4] << 24),
+ fep->hwp + FEC_ADDR_HIGH);
+ return 0;
}
-/* Initialize the FEC Ethernet on 860T (or ColdFire 5272).
- */
+static const struct net_device_ops fec_netdev_ops = {
+ .ndo_open = fec_enet_open,
+ .ndo_stop = fec_enet_close,
+ .ndo_start_xmit = fec_enet_start_xmit,
+ .ndo_set_multicast_list = set_multicast_list,
+ .ndo_change_mtu = eth_change_mtu,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_tx_timeout = fec_timeout,
+ .ndo_set_mac_address = fec_set_mac_address,
+ .ndo_do_ioctl = fec_enet_ioctl,
+};
+
/*
* XXX: We need to clean up on failure exits here.
+ *
+ * index is only used in legacy code
*/
-int __init fec_enet_init(struct net_device *dev)
+static int fec_enet_init(struct net_device *dev, int index)
{
struct fec_enet_private *fep = netdev_priv(dev);
- unsigned long mem_addr;
- volatile cbd_t *bdp;
- cbd_t *cbd_base;
- volatile fec_t *fecp;
- int i, j;
- static int index = 0;
-
- /* Only allow us to be probed once. */
- if (index >= FEC_MAX_PORTS)
- return -ENXIO;
+ struct bufdesc *cbd_base;
+ struct bufdesc *bdp;
+ int i;
- /* Allocate memory for buffer descriptors.
- */
- mem_addr = (unsigned long)dma_alloc_coherent(NULL, PAGE_SIZE,
- &fep->bd_dma, GFP_KERNEL);
- if (mem_addr == 0) {
+ /* Allocate memory for buffer descriptors. */
+ cbd_base = dma_alloc_coherent(NULL, PAGE_SIZE, &fep->bd_dma,
+ GFP_KERNEL);
+ if (!cbd_base) {
printk("FEC: allocate descriptor memory failed?\n");
return -ENOMEM;
}
spin_lock_init(&fep->hw_lock);
- spin_lock_init(&fep->mii_lock);
-
- /* Create an Ethernet device instance.
- */
- fecp = (volatile fec_t *) fec_hw[index];
fep->index = index;
- fep->hwp = fecp;
+ fep->hwp = (void __iomem *)dev->base_addr;
fep->netdev = dev;
- /* Whack a reset. We should wait for this.
- */
- fecp->fec_ecntrl = 1;
- udelay(10);
-
- /* Set the Ethernet address. If using multiple Enets on the 8xx,
- * this needs some work to get unique addresses.
- *
- * This is our default MAC address unless the user changes
- * it via eth_mac_addr (our dev->set_mac_addr handler).
- */
+ /* Set the Ethernet address */
+#ifdef CONFIG_M5272
fec_get_mac(dev);
+#else
+ {
+ unsigned long l;
+ l = readl(fep->hwp + FEC_ADDR_LOW);
+ dev->dev_addr[0] = (unsigned char)((l & 0xFF000000) >> 24);
+ dev->dev_addr[1] = (unsigned char)((l & 0x00FF0000) >> 16);
+ dev->dev_addr[2] = (unsigned char)((l & 0x0000FF00) >> 8);
+ dev->dev_addr[3] = (unsigned char)((l & 0x000000FF) >> 0);
+ l = readl(fep->hwp + FEC_ADDR_HIGH);
+ dev->dev_addr[4] = (unsigned char)((l & 0xFF000000) >> 24);
+ dev->dev_addr[5] = (unsigned char)((l & 0x00FF0000) >> 16);
+ }
+#endif
- cbd_base = (cbd_t *)mem_addr;
- /* XXX: missing check for allocation failure */
-
- /* Set receive and transmit descriptor base.
- */
+ /* Set receive and transmit descriptor base. */
fep->rx_bd_base = cbd_base;
fep->tx_bd_base = cbd_base + RX_RING_SIZE;
- fep->dirty_tx = fep->cur_tx = fep->tx_bd_base;
- fep->cur_rx = fep->rx_bd_base;
-
- fep->skb_cur = fep->skb_dirty = 0;
+ /* The FEC Ethernet specific entries in the device structure */
+ dev->watchdog_timeo = TX_TIMEOUT;
+ dev->netdev_ops = &fec_netdev_ops;
+ dev->ethtool_ops = &fec_enet_ethtool_ops;
- /* Initialize the receive buffer descriptors.
- */
+ /* Initialize the receive buffer descriptors. */
bdp = fep->rx_bd_base;
- for (i=0; i<FEC_ENET_RX_PAGES; i++) {
-
- /* Allocate a page.
- */
- mem_addr = __get_free_page(GFP_KERNEL);
- /* XXX: missing check for allocation failure */
-
- /* Initialize the BD for every fragment in the page.
- */
- for (j=0; j<FEC_ENET_RX_FRPPG; j++) {
- bdp->cbd_sc = BD_ENET_RX_EMPTY;
- bdp->cbd_bufaddr = __pa(mem_addr);
- mem_addr += FEC_ENET_RX_FRSIZE;
- bdp++;
- }
+ for (i = 0; i < RX_RING_SIZE; i++) {
+
+ /* Initialize the BD for every fragment in the page. */
+ bdp->cbd_sc = 0;
+ bdp++;
}
- /* Set the last buffer to wrap.
- */
+ /* Set the last buffer to wrap */
bdp--;
bdp->cbd_sc |= BD_SC_WRAP;
- /* ...and the same for transmmit.
- */
+ /* ...and the same for transmit */
bdp = fep->tx_bd_base;
- for (i=0, j=FEC_ENET_TX_FRPPG; i<TX_RING_SIZE; i++) {
- if (j >= FEC_ENET_TX_FRPPG) {
- mem_addr = __get_free_page(GFP_KERNEL);
- j = 1;
- } else {
- mem_addr += FEC_ENET_TX_FRSIZE;
- j++;
- }
- fep->tx_bounce[i] = (unsigned char *) mem_addr;
+ for (i = 0; i < TX_RING_SIZE; i++) {
- /* Initialize the BD for every fragment in the page.
- */
+ /* Initialize the BD for every fragment in the page. */
bdp->cbd_sc = 0;
bdp->cbd_bufaddr = 0;
bdp++;
}
- /* Set the last buffer to wrap.
- */
+ /* Set the last buffer to wrap */
bdp--;
bdp->cbd_sc |= BD_SC_WRAP;
- /* Set receive and transmit descriptor base.
- */
- fecp->fec_r_des_start = fep->bd_dma;
- fecp->fec_x_des_start = (unsigned long)fep->bd_dma + sizeof(cbd_t)
- * RX_RING_SIZE;
-
- /* Install our interrupt handlers. This varies depending on
- * the architecture.
- */
- fec_request_intrs(dev);
-
- fecp->fec_grp_hash_table_high = 0;
- fecp->fec_grp_hash_table_low = 0;
- fecp->fec_r_buff_size = PKT_MAXBLR_SIZE;
- fecp->fec_ecntrl = 2;
- fecp->fec_r_des_active = 0;
-#ifndef CONFIG_M5272
- fecp->fec_hash_table_high = 0;
- fecp->fec_hash_table_low = 0;
-#endif
-
- dev->base_addr = (unsigned long)fecp;
-
- /* 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->set_multicast_list = set_multicast_list;
-
- for (i=0; i<NMII-1; i++)
- mii_cmds[i].mii_next = &mii_cmds[i+1];
- mii_free = mii_cmds;
-
- /* setup MII interface */
- fec_set_mii(dev, fep);
-
- /* Clear and enable interrupts */
- fecp->fec_ievent = 0xffc00000;
- fecp->fec_imask = (FEC_ENET_TXF | FEC_ENET_RXF | FEC_ENET_MII);
-
- /* Queue up command to detect the PHY and initialize the
- * remainder of the interface.
- */
- fep->phy_id_done = 0;
- fep->phy_addr = 0;
- mii_queue(dev, mk_mii_read(MII_REG_PHYIR1), mii_discover_phy);
+ fec_restart(dev, 0);
- index++;
return 0;
}
static void
fec_restart(struct net_device *dev, int duplex)
{
- struct fec_enet_private *fep;
- volatile cbd_t *bdp;
- volatile fec_t *fecp;
+ struct fec_enet_private *fep = netdev_priv(dev);
int i;
- fep = netdev_priv(dev);
- fecp = fep->hwp;
-
- /* Whack a reset. We should wait for this.
- */
- fecp->fec_ecntrl = 1;
+ /* Whack a reset. We should wait for this. */
+ writel(1, fep->hwp + FEC_ECNTRL);
udelay(10);
- /* Clear any outstanding interrupt.
- */
- fecp->fec_ievent = 0xffc00000;
-
- /* Set station address.
- */
- fec_set_mac_address(dev);
+ /* Clear any outstanding interrupt. */
+ writel(0xffc00000, fep->hwp + FEC_IEVENT);
- /* Reset all multicast.
- */
- fecp->fec_grp_hash_table_high = 0;
- fecp->fec_grp_hash_table_low = 0;
+ /* Reset all multicast. */
+ writel(0, fep->hwp + FEC_GRP_HASH_TABLE_HIGH);
+ writel(0, fep->hwp + FEC_GRP_HASH_TABLE_LOW);
+#ifndef CONFIG_M5272
+ writel(0, fep->hwp + FEC_HASH_TABLE_HIGH);
+ writel(0, fep->hwp + FEC_HASH_TABLE_LOW);
+#endif
- /* Set maximum receive buffer size.
- */
- fecp->fec_r_buff_size = PKT_MAXBLR_SIZE;
+ /* Set maximum receive buffer size. */
+ writel(PKT_MAXBLR_SIZE, fep->hwp + FEC_R_BUFF_SIZE);
- /* Set receive and transmit descriptor base.
- */
- fecp->fec_r_des_start = fep->bd_dma;
- fecp->fec_x_des_start = (unsigned long)fep->bd_dma + sizeof(cbd_t)
- * RX_RING_SIZE;
+ /* Set receive and transmit descriptor base. */
+ writel(fep->bd_dma, fep->hwp + FEC_R_DES_START);
+ writel((unsigned long)fep->bd_dma + sizeof(struct bufdesc) * RX_RING_SIZE,
+ fep->hwp + FEC_X_DES_START);
fep->dirty_tx = fep->cur_tx = fep->tx_bd_base;
fep->cur_rx = fep->rx_bd_base;
- /* Reset SKB transmit buffers.
- */
+ /* Reset SKB transmit buffers. */
fep->skb_cur = fep->skb_dirty = 0;
- for (i=0; i<=TX_RING_MOD_MASK; i++) {
- if (fep->tx_skbuff[i] != NULL) {
+ for (i = 0; i <= TX_RING_MOD_MASK; i++) {
+ if (fep->tx_skbuff[i]) {
dev_kfree_skb_any(fep->tx_skbuff[i]);
fep->tx_skbuff[i] = NULL;
}
}
- /* Initialize the receive buffer descriptors.
- */
- bdp = fep->rx_bd_base;
- for (i=0; i<RX_RING_SIZE; i++) {
-
- /* Initialize the BD for every fragment in the page.
- */
- bdp->cbd_sc = BD_ENET_RX_EMPTY;
- bdp++;
+ /* Enable MII mode */
+ if (duplex) {
+ /* MII enable / FD enable */
+ writel(OPT_FRAME_SIZE | 0x04, fep->hwp + FEC_R_CNTRL);
+ writel(0x04, fep->hwp + FEC_X_CNTRL);
+ } else {
+ /* MII enable / No Rcv on Xmit */
+ writel(OPT_FRAME_SIZE | 0x06, fep->hwp + FEC_R_CNTRL);
+ writel(0x0, fep->hwp + FEC_X_CNTRL);
}
+ fep->full_duplex = duplex;
- /* Set the last buffer to wrap.
- */
- bdp--;
- bdp->cbd_sc |= BD_SC_WRAP;
-
- /* ...and the same for transmmit.
- */
- bdp = fep->tx_bd_base;
- for (i=0; i<TX_RING_SIZE; i++) {
+ /* Set MII speed */
+ writel(fep->phy_speed, fep->hwp + FEC_MII_SPEED);
- /* Initialize the BD for every fragment in the page.
- */
- bdp->cbd_sc = 0;
- bdp->cbd_bufaddr = 0;
- bdp++;
- }
+#ifdef FEC_MIIGSK_ENR
+ if (fep->phy_interface == PHY_INTERFACE_MODE_RMII) {
+ /* disable the gasket and wait */
+ writel(0, fep->hwp + FEC_MIIGSK_ENR);
+ while (readl(fep->hwp + FEC_MIIGSK_ENR) & 4)
+ udelay(1);
- /* Set the last buffer to wrap.
- */
- bdp--;
- bdp->cbd_sc |= BD_SC_WRAP;
+ /* configure the gasket: RMII, 50 MHz, no loopback, no echo */
+ writel(1, fep->hwp + FEC_MIIGSK_CFGR);
- /* Enable MII mode.
- */
- if (duplex) {
- fecp->fec_r_cntrl = OPT_FRAME_SIZE | 0x04;/* MII enable */
- fecp->fec_x_cntrl = 0x04; /* FD enable */
- } else {
- /* MII enable|No Rcv on Xmit */
- fecp->fec_r_cntrl = OPT_FRAME_SIZE | 0x06;
- fecp->fec_x_cntrl = 0x00;
+ /* re-enable the gasket */
+ writel(2, fep->hwp + FEC_MIIGSK_ENR);
}
- fep->full_duplex = duplex;
-
- /* Set MII speed.
- */
- fecp->fec_mii_speed = fep->phy_speed;
+#endif
- /* And last, enable the transmit and receive processing.
- */
- fecp->fec_ecntrl = 2;
- fecp->fec_r_des_active = 0;
+ /* And last, enable the transmit and receive processing */
+ writel(2, fep->hwp + FEC_ECNTRL);
+ writel(0, fep->hwp + FEC_R_DES_ACTIVE);
- /* Enable interrupts we wish to service.
- */
- fecp->fec_imask = (FEC_ENET_TXF | FEC_ENET_RXF | FEC_ENET_MII);
+ /* Enable interrupts we wish to service */
+ writel(FEC_ENET_TXF | FEC_ENET_RXF, fep->hwp + FEC_IMASK);
}
static void
fec_stop(struct net_device *dev)
{
- volatile fec_t *fecp;
- struct fec_enet_private *fep;
-
- fep = netdev_priv(dev);
- fecp = fep->hwp;
+ struct fec_enet_private *fep = netdev_priv(dev);
- /*
- ** We cannot expect a graceful transmit stop without link !!!
- */
- if (fep->link)
- {
- fecp->fec_x_cntrl = 0x01; /* Graceful transmit stop */
+ /* We cannot expect a graceful transmit stop without link !!! */
+ if (fep->link) {
+ writel(1, fep->hwp + FEC_X_CNTRL); /* Graceful transmit stop */
udelay(10);
- if (!(fecp->fec_ievent & FEC_ENET_GRA))
+ if (!(readl(fep->hwp + FEC_IEVENT) & FEC_ENET_GRA))
printk("fec_stop : Graceful transmit stop did not complete !\n");
- }
+ }
- /* Whack a reset. We should wait for this.
- */
- fecp->fec_ecntrl = 1;
+ /* Whack a reset. We should wait for this. */
+ writel(1, fep->hwp + FEC_ECNTRL);
udelay(10);
- /* Clear outstanding MII command interrupts.
- */
- fecp->fec_ievent = FEC_ENET_MII;
+ /* Clear outstanding MII command interrupts. */
+ writel(FEC_ENET_MII, fep->hwp + FEC_IEVENT);
- fecp->fec_imask = FEC_ENET_MII;
- fecp->fec_mii_speed = fep->phy_speed;
+ writel(fep->phy_speed, fep->hwp + FEC_MII_SPEED);
}
-static int __init fec_enet_module_init(void)
+static int __devinit
+fec_probe(struct platform_device *pdev)
{
- struct net_device *dev;
- int i, err;
+ struct fec_enet_private *fep;
+ struct fec_platform_data *pdata;
+ struct net_device *ndev;
+ int i, irq, ret = 0;
+ struct resource *r;
- printk("FEC ENET Version 0.2\n");
+ r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!r)
+ return -ENXIO;
- for (i = 0; (i < FEC_MAX_PORTS); i++) {
- dev = alloc_etherdev(sizeof(struct fec_enet_private));
- if (!dev)
- return -ENOMEM;
- err = fec_enet_init(dev);
- if (err) {
- free_netdev(dev);
- continue;
+ r = request_mem_region(r->start, resource_size(r), pdev->name);
+ if (!r)
+ return -EBUSY;
+
+ /* Init network device */
+ ndev = alloc_etherdev(sizeof(struct fec_enet_private));
+ if (!ndev)
+ return -ENOMEM;
+
+ SET_NETDEV_DEV(ndev, &pdev->dev);
+
+ /* setup board info structure */
+ fep = netdev_priv(ndev);
+ memset(fep, 0, sizeof(*fep));
+
+ ndev->base_addr = (unsigned long)ioremap(r->start, resource_size(r));
+ fep->pdev = pdev;
+
+ if (!ndev->base_addr) {
+ ret = -ENOMEM;
+ goto failed_ioremap;
+ }
+
+ platform_set_drvdata(pdev, ndev);
+
+ pdata = pdev->dev.platform_data;
+ if (pdata)
+ fep->phy_interface = pdata->phy;
+
+ /* This device has up to three irqs on some platforms */
+ for (i = 0; i < 3; i++) {
+ irq = platform_get_irq(pdev, i);
+ if (i && irq < 0)
+ break;
+ ret = request_irq(irq, fec_enet_interrupt, IRQF_DISABLED, pdev->name, ndev);
+ if (ret) {
+ while (i >= 0) {
+ irq = platform_get_irq(pdev, i);
+ free_irq(irq, ndev);
+ i--;
+ }
+ goto failed_irq;
}
- if (register_netdev(dev) != 0) {
- /* XXX: missing cleanup here */
- free_netdev(dev);
- return -EIO;
+ }
+
+ fep->clk = clk_get(&pdev->dev, "fec_clk");
+ if (IS_ERR(fep->clk)) {
+ ret = PTR_ERR(fep->clk);
+ goto failed_clk;
+ }
+ clk_enable(fep->clk);
+
+ ret = fec_enet_init(ndev, 0);
+ if (ret)
+ goto failed_init;
+
+ ret = fec_enet_mii_init(pdev);
+ if (ret)
+ goto failed_mii_init;
+
+ ret = register_netdev(ndev);
+ if (ret)
+ goto failed_register;
+
+ printk(KERN_INFO "%s: Freescale FEC PHY driver [%s] "
+ "(mii_bus:phy_addr=%s, irq=%d)\n", ndev->name,
+ fep->phy_dev->drv->name, dev_name(&fep->phy_dev->dev),
+ fep->phy_dev->irq);
+
+ return 0;
+
+failed_register:
+ fec_enet_mii_remove(fep);
+failed_mii_init:
+failed_init:
+ clk_disable(fep->clk);
+ clk_put(fep->clk);
+failed_clk:
+ for (i = 0; i < 3; i++) {
+ irq = platform_get_irq(pdev, i);
+ if (irq > 0)
+ free_irq(irq, ndev);
+ }
+failed_irq:
+ iounmap((void __iomem *)ndev->base_addr);
+failed_ioremap:
+ free_netdev(ndev);
+
+ return ret;
+}
+
+static int __devexit
+fec_drv_remove(struct platform_device *pdev)
+{
+ struct net_device *ndev = platform_get_drvdata(pdev);
+ struct fec_enet_private *fep = netdev_priv(ndev);
+
+ platform_set_drvdata(pdev, NULL);
+
+ fec_stop(ndev);
+ fec_enet_mii_remove(fep);
+ clk_disable(fep->clk);
+ clk_put(fep->clk);
+ iounmap((void __iomem *)ndev->base_addr);
+ unregister_netdev(ndev);
+ free_netdev(ndev);
+ return 0;
+}
+
+static int
+fec_suspend(struct platform_device *dev, pm_message_t state)
+{
+ struct net_device *ndev = platform_get_drvdata(dev);
+ struct fec_enet_private *fep;
+
+ if (ndev) {
+ fep = netdev_priv(ndev);
+ if (netif_running(ndev)) {
+ netif_device_detach(ndev);
+ fec_stop(ndev);
}
+ }
+ return 0;
+}
+
+static int
+fec_resume(struct platform_device *dev)
+{
+ struct net_device *ndev = platform_get_drvdata(dev);
- printk("%s: ethernet %pM\n", dev->name, dev->dev_addr);
+ if (ndev) {
+ if (netif_running(ndev)) {
+ fec_enet_init(ndev, 0);
+ netif_device_attach(ndev);
+ }
}
return 0;
}
+static struct platform_driver fec_driver = {
+ .driver = {
+ .name = "fec",
+ .owner = THIS_MODULE,
+ },
+ .probe = fec_probe,
+ .remove = __devexit_p(fec_drv_remove),
+ .suspend = fec_suspend,
+ .resume = fec_resume,
+};
+
+static int __init
+fec_enet_module_init(void)
+{
+ printk(KERN_INFO "FEC Ethernet Driver\n");
+
+ return platform_driver_register(&fec_driver);
+}
+
+static void __exit
+fec_enet_cleanup(void)
+{
+ platform_driver_unregister(&fec_driver);
+}
+
+module_exit(fec_enet_cleanup);
module_init(fec_enet_module_init);
MODULE_LICENSE("GPL");
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff