/*
- * File: drivers/net/bfin_mac.c
- * Based on:
- * Maintainer:
- * Bryan Wu <bryan.wu@analog.com>
+ * Blackfin On-Chip MAC Driver
*
- * Original author:
- * Luke Yang <luke.yang@analog.com>
+ * Copyright 2004-2007 Analog Devices Inc.
*
- * Created:
- * Description:
+ * Enter bugs at http://blackfin.uclinux.org/
*
- * Modified:
- * 2006-12-19 Aidan Williams, multicast hash support
- * Copyright 2004-2006 Analog Devices Inc.
- *
- * Bugs: Enter bugs at http://blackfin.uclinux.org/
- *
- * This program is free software ; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation ; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY ; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program ; see the file COPYING.
- * If not, write to the Free Software Foundation,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * Licensed under the GPL-2 or later.
*/
#include <linux/init.h>
#include <linux/crc32.h>
#include <linux/device.h>
#include <linux/spinlock.h>
-#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/phy.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
#include <linux/skbuff.h>
#include <linux/platform_device.h>
#include <asm/dma.h>
#include <linux/dma-mapping.h>
+#include <asm/dpmc.h>
#include <asm/blackfin.h>
#include <asm/cacheflush.h>
#include <asm/portmux.h>
#define DRV_NAME "bfin_mac"
#define DRV_VERSION "1.1"
#define DRV_AUTHOR "Bryan Wu, Luke Yang"
-#define DRV_DESC "Blackfin BF53[67] on-chip Ethernet MAC driver"
+#define DRV_DESC "Blackfin on-chip Ethernet MAC driver"
MODULE_AUTHOR(DRV_AUTHOR);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION(DRV_DESC);
+MODULE_ALIAS("platform:bfin_mac");
#if defined(CONFIG_BFIN_MAC_USE_L1)
# define bfin_mac_alloc(dma_handle, size) l1_data_sram_zalloc(size)
static struct net_dma_desc_tx *tx_desc;
static struct net_dma_desc_rx *rx_desc;
-static void bf537mac_disable(void);
-static void bf537mac_enable(void);
+#if defined(CONFIG_BFIN_MAC_RMII)
+static u16 pin_req[] = P_RMII0;
+#else
+static u16 pin_req[] = P_MII0;
+#endif
+
+static void bfin_mac_disable(void);
+static void bfin_mac_enable(void);
static void desc_list_free(void)
{
struct dma_descriptor *b = &(r->desc_b);
/* allocate a new skb for next time receive */
- new_skb = dev_alloc_skb(PKT_BUF_SZ + 2);
+ new_skb = dev_alloc_skb(PKT_BUF_SZ + NET_IP_ALIGN);
if (!new_skb) {
printk(KERN_NOTICE DRV_NAME
": init: low on mem - packet dropped\n");
goto init_error;
}
- skb_reserve(new_skb, 2);
+ skb_reserve(new_skb, NET_IP_ALIGN);
r->skb = new_skb;
/*
/*---PHY CONTROL AND CONFIGURATION-----------------------------------------*/
-/* Set FER regs to MUX in Ethernet pins */
-static int setup_pin_mux(int action)
-{
-#if defined(CONFIG_BFIN_MAC_RMII)
- u16 pin_req[] = P_RMII0;
-#else
- u16 pin_req[] = P_MII0;
-#endif
-
- if (action) {
- if (peripheral_request_list(pin_req, DRV_NAME)) {
- printk(KERN_ERR DRV_NAME
- ": Requesting Peripherals failed\n");
- return -EFAULT;
- }
- } else
- peripheral_free_list(pin_req);
-
- return 0;
-}
-
/*
* MII operations
*/
/* Wait until the previous MDC/MDIO transaction has completed */
-static void mdio_poll(void)
+static void bfin_mdio_poll(void)
{
int timeout_cnt = MAX_TIMEOUT_CNT;
}
/* Read an off-chip register in a PHY through the MDC/MDIO port */
-static int mdiobus_read(struct mii_bus *bus, int phy_addr, int regnum)
+static int bfin_mdiobus_read(struct mii_bus *bus, int phy_addr, int regnum)
{
- mdio_poll();
+ bfin_mdio_poll();
/* read mode */
bfin_write_EMAC_STAADD(SET_PHYAD((u16) phy_addr) |
SET_REGAD((u16) regnum) |
STABUSY);
- mdio_poll();
+ bfin_mdio_poll();
return (int) bfin_read_EMAC_STADAT();
}
/* Write an off-chip register in a PHY through the MDC/MDIO port */
-static int mdiobus_write(struct mii_bus *bus, int phy_addr, int regnum,
- u16 value)
+static int bfin_mdiobus_write(struct mii_bus *bus, int phy_addr, int regnum,
+ u16 value)
{
- mdio_poll();
+ bfin_mdio_poll();
bfin_write_EMAC_STADAT((u32) value);
STAOP |
STABUSY);
- mdio_poll();
+ bfin_mdio_poll();
return 0;
}
-static int mdiobus_reset(struct mii_bus *bus)
+static int bfin_mdiobus_reset(struct mii_bus *bus)
{
return 0;
}
-static void bf537_adjust_link(struct net_device *dev)
+static void bfin_mac_adjust_link(struct net_device *dev)
{
- struct bf537mac_local *lp = netdev_priv(dev);
+ struct bfin_mac_local *lp = netdev_priv(dev);
struct phy_device *phydev = lp->phydev;
unsigned long flags;
int new_state = 0;
if (!lp->old_link) {
new_state = 1;
lp->old_link = 1;
- netif_schedule(dev);
}
} else if (lp->old_link) {
new_state = 1;
static int mii_probe(struct net_device *dev)
{
- struct bf537mac_local *lp = netdev_priv(dev);
+ struct bfin_mac_local *lp = netdev_priv(dev);
struct phy_device *phydev = NULL;
unsigned short sysctl;
int i;
u32 sclk, mdc_div;
/* Enable PHY output early */
- if (!(bfin_read_VR_CTL() & PHYCLKOE))
- bfin_write_VR_CTL(bfin_read_VR_CTL() | PHYCLKOE);
+ if (!(bfin_read_VR_CTL() & CLKBUFOE))
+ bfin_write_VR_CTL(bfin_read_VR_CTL() | CLKBUFOE);
sclk = get_sclk();
mdc_div = ((sclk / MDC_CLK) / 2) - 1;
sysctl = bfin_read_EMAC_SYSCTL();
- sysctl |= SET_MDCDIV(mdc_div);
+ sysctl = (sysctl & ~MDCDIV) | SET_MDCDIV(mdc_div);
bfin_write_EMAC_SYSCTL(sysctl);
/* search for connect PHY device */
for (i = 0; i < PHY_MAX_ADDR; i++) {
- struct phy_device *const tmp_phydev = lp->mii_bus.phy_map[i];
+ struct phy_device *const tmp_phydev = lp->mii_bus->phy_map[i];
if (!tmp_phydev)
continue; /* no PHY here... */
}
#if defined(CONFIG_BFIN_MAC_RMII)
- phydev = phy_connect(dev, phydev->dev.bus_id, &bf537_adjust_link, 0,
- PHY_INTERFACE_MODE_RMII);
+ phydev = phy_connect(dev, dev_name(&phydev->dev), &bfin_mac_adjust_link,
+ 0, PHY_INTERFACE_MODE_RMII);
#else
- phydev = phy_connect(dev, phydev->dev.bus_id, &bf537_adjust_link, 0,
- PHY_INTERFACE_MODE_MII);
+ phydev = phy_connect(dev, dev_name(&phydev->dev), &bfin_mac_adjust_link,
+ 0, PHY_INTERFACE_MODE_MII);
#endif
if (IS_ERR(phydev)) {
printk(KERN_INFO "%s: attached PHY driver [%s] "
"(mii_bus:phy_addr=%s, irq=%d, mdc_clk=%dHz(mdc_div=%d)"
"@sclk=%dMHz)\n",
- DRV_NAME, phydev->drv->name, phydev->dev.bus_id, phydev->irq,
+ DRV_NAME, phydev->drv->name, dev_name(&phydev->dev), phydev->irq,
MDC_CLK, mdc_div, sclk/1000000);
return 0;
}
+/*
+ * Ethtool support
+ */
+
+static int
+bfin_mac_ethtool_getsettings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct bfin_mac_local *lp = netdev_priv(dev);
+
+ if (lp->phydev)
+ return phy_ethtool_gset(lp->phydev, cmd);
+
+ return -EINVAL;
+}
+
+static int
+bfin_mac_ethtool_setsettings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct bfin_mac_local *lp = netdev_priv(dev);
+
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
+ if (lp->phydev)
+ return phy_ethtool_sset(lp->phydev, cmd);
+
+ return -EINVAL;
+}
+
+static void bfin_mac_ethtool_getdrvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *info)
+{
+ strcpy(info->driver, DRV_NAME);
+ strcpy(info->version, DRV_VERSION);
+ strcpy(info->fw_version, "N/A");
+ strcpy(info->bus_info, dev_name(&dev->dev));
+}
+
+static const struct ethtool_ops bfin_mac_ethtool_ops = {
+ .get_settings = bfin_mac_ethtool_getsettings,
+ .set_settings = bfin_mac_ethtool_setsettings,
+ .get_link = ethtool_op_get_link,
+ .get_drvinfo = bfin_mac_ethtool_getdrvinfo,
+};
+
/**************************************************************************/
void setup_system_regs(struct net_device *dev)
{
bfin_write_EMAC_ADDRHI(addr_hi);
}
-static int bf537mac_set_mac_address(struct net_device *dev, void *p)
+static int bfin_mac_set_mac_address(struct net_device *dev, void *p)
{
struct sockaddr *addr = p;
if (netif_running(dev))
{
int timeout_cnt = MAX_TIMEOUT_CNT;
- if (tx_list_head->status.status_word != 0
- && current_tx_ptr != tx_list_head) {
+ if (tx_list_head->status.status_word != 0 &&
+ current_tx_ptr != tx_list_head) {
goto adjust_head; /* released something, just return; */
}
*/
if (current_tx_ptr->next->next == tx_list_head) {
while (tx_list_head->status.status_word == 0) {
- mdelay(1);
- if (tx_list_head->status.status_word != 0
- || !(bfin_read_DMA2_IRQ_STATUS() & 0x08)) {
+ udelay(10);
+ if (tx_list_head->status.status_word != 0 ||
+ !(bfin_read_DMA2_IRQ_STATUS() & DMA_RUN)) {
goto adjust_head;
}
if (timeout_cnt-- < 0) {
": no sk_buff in a transmitted frame!\n");
}
tx_list_head = tx_list_head->next;
- } while (tx_list_head->status.status_word != 0
- && current_tx_ptr != tx_list_head);
+ } while (tx_list_head->status.status_word != 0 &&
+ current_tx_ptr != tx_list_head);
return;
}
-static int bf537mac_hard_start_xmit(struct sk_buff *skb,
+static int bfin_mac_hard_start_xmit(struct sk_buff *skb,
struct net_device *dev)
{
- struct bf537mac_local *lp = netdev_priv(dev);
- unsigned int data;
-
+ u16 *data;
+ u32 data_align = (unsigned long)(skb->data) & 0x3;
current_tx_ptr->skb = skb;
- /*
- * Is skb->data always 16-bit aligned?
- * Do we need to memcpy((char *)(tail->packet + 2), skb->data, len)?
- */
- if ((((unsigned int)(skb->data)) & 0x02) == 2) {
+ if (data_align == 0x2) {
/* move skb->data to current_tx_ptr payload */
- data = (unsigned int)(skb->data) - 2;
- *((unsigned short *)data) = (unsigned short)(skb->len);
- current_tx_ptr->desc_a.start_addr = (unsigned long)data;
+ data = (u16 *)(skb->data) - 1;
+ *data = (u16)(skb->len);
+ current_tx_ptr->desc_a.start_addr = (u32)data;
/* this is important! */
- blackfin_dcache_flush_range(data, (data + (skb->len)) + 2);
-
+ blackfin_dcache_flush_range((u32)data,
+ (u32)((u8 *)data + skb->len + 4));
} else {
- *((unsigned short *)(current_tx_ptr->packet)) =
- (unsigned short)(skb->len);
- memcpy((char *)(current_tx_ptr->packet + 2), skb->data,
- (skb->len));
+ *((u16 *)(current_tx_ptr->packet)) = (u16)(skb->len);
+ memcpy((u8 *)(current_tx_ptr->packet + 2), skb->data,
+ skb->len);
current_tx_ptr->desc_a.start_addr =
- (unsigned long)current_tx_ptr->packet;
+ (u32)current_tx_ptr->packet;
if (current_tx_ptr->status.status_word != 0)
current_tx_ptr->status.status_word = 0;
- blackfin_dcache_flush_range((unsigned int)current_tx_ptr->
- packet,
- (unsigned int)(current_tx_ptr->
- packet + skb->len) +
- 2);
+ blackfin_dcache_flush_range(
+ (u32)current_tx_ptr->packet,
+ (u32)(current_tx_ptr->packet + skb->len + 2));
}
+ /* make sure the internal data buffers in the core are drained
+ * so that the DMA descriptors are completely written when the
+ * DMA engine goes to fetch them below
+ */
+ SSYNC();
+
/* enable this packet's dma */
current_tx_ptr->desc_a.config |= DMAEN;
/* tx dma is running, just return */
- if (bfin_read_DMA2_IRQ_STATUS() & 0x08)
+ if (bfin_read_DMA2_IRQ_STATUS() & DMA_RUN)
goto out;
/* tx dma is not running */
dev->trans_start = jiffies;
dev->stats.tx_packets++;
dev->stats.tx_bytes += (skb->len);
- return 0;
+ return NETDEV_TX_OK;
}
-static void bf537mac_rx(struct net_device *dev)
+static void bfin_mac_rx(struct net_device *dev)
{
struct sk_buff *skb, *new_skb;
- struct bf537mac_local *lp = netdev_priv(dev);
unsigned short len;
/* allocate a new skb for next time receive */
skb = current_rx_ptr->skb;
- new_skb = dev_alloc_skb(PKT_BUF_SZ + 2);
+ new_skb = dev_alloc_skb(PKT_BUF_SZ + NET_IP_ALIGN);
if (!new_skb) {
printk(KERN_NOTICE DRV_NAME
": rx: low on mem - packet dropped\n");
goto out;
}
/* reserve 2 bytes for RXDWA padding */
- skb_reserve(new_skb, 2);
+ skb_reserve(new_skb, NET_IP_ALIGN);
current_rx_ptr->skb = new_skb;
current_rx_ptr->desc_a.start_addr = (unsigned long)new_skb->data - 2;
+ /* Invidate the data cache of skb->data range when it is write back
+ * cache. It will prevent overwritting the new data from DMA
+ */
+ blackfin_dcache_invalidate_range((unsigned long)new_skb->head,
+ (unsigned long)new_skb->end);
+
len = (unsigned short)((current_rx_ptr->status.status_word) & RX_FRLEN);
skb_put(skb, len);
blackfin_dcache_invalidate_range((unsigned long)skb->head,
(unsigned long)skb->tail);
- dev->last_rx = jiffies;
- skb->dev = dev;
skb->protocol = eth_type_trans(skb, dev);
#if defined(BFIN_MAC_CSUM_OFFLOAD)
skb->csum = current_rx_ptr->status.ip_payload_csum;
}
/* interrupt routine to handle rx and error signal */
-static irqreturn_t bf537mac_interrupt(int irq, void *dev_id)
+static irqreturn_t bfin_mac_interrupt(int irq, void *dev_id)
{
struct net_device *dev = dev_id;
int number = 0;
}
real_rx:
- bf537mac_rx(dev);
+ bfin_mac_rx(dev);
number++;
goto get_one_packet;
}
#ifdef CONFIG_NET_POLL_CONTROLLER
-static void bf537mac_poll(struct net_device *dev)
+static void bfin_mac_poll(struct net_device *dev)
{
disable_irq(IRQ_MAC_RX);
- bf537mac_interrupt(IRQ_MAC_RX, dev);
+ bfin_mac_interrupt(IRQ_MAC_RX, dev);
enable_irq(IRQ_MAC_RX);
}
#endif /* CONFIG_NET_POLL_CONTROLLER */
-static void bf537mac_disable(void)
+static void bfin_mac_disable(void)
{
unsigned int opmode;
/*
* Enable Interrupts, Receive, and Transmit
*/
-static void bf537mac_enable(void)
+static void bfin_mac_enable(void)
{
u32 opmode;
- pr_debug("%s: %s\n", DRV_NAME, __FUNCTION__);
+ pr_debug("%s: %s\n", DRV_NAME, __func__);
/* Set RX DMA */
bfin_write_DMA1_NEXT_DESC_PTR(&(rx_list_head->desc_a));
bfin_write_DMA1_CONFIG(rx_list_head->desc_a.config);
/* Wait MII done */
- mdio_poll();
+ bfin_mdio_poll();
/* We enable only RX here */
/* ASTP : Enable Automatic Pad Stripping
#if defined(CONFIG_BFIN_MAC_RMII)
opmode |= RMII; /* For Now only 100MBit are supported */
-#ifdef CONFIG_BF_REV_0_2
+#if (defined(CONFIG_BF537) || defined(CONFIG_BF536)) && CONFIG_BF_REV_0_2
opmode |= TE;
#endif
#endif
}
/* Our watchdog timed out. Called by the networking layer */
-static void bf537mac_timeout(struct net_device *dev)
+static void bfin_mac_timeout(struct net_device *dev)
{
- pr_debug("%s: %s\n", dev->name, __FUNCTION__);
+ pr_debug("%s: %s\n", dev->name, __func__);
- bf537mac_disable();
+ bfin_mac_disable();
/* reset tx queue */
tx_list_tail = tx_list_head->next;
- bf537mac_enable();
+ bfin_mac_enable();
/* We can accept TX packets again */
dev->trans_start = jiffies;
netif_wake_queue(dev);
}
-static void bf537mac_multicast_hash(struct net_device *dev)
+static void bfin_mac_multicast_hash(struct net_device *dev)
{
u32 emac_hashhi, emac_hashlo;
- struct dev_mc_list *dmi = dev->mc_list;
+ struct dev_mc_list *dmi;
char *addrs;
- int i;
u32 crc;
emac_hashhi = emac_hashlo = 0;
- for (i = 0; i < dev->mc_count; i++) {
+ netdev_for_each_mc_addr(dmi, dev) {
addrs = dmi->dmi_addr;
- dmi = dmi->next;
/* skip non-multicast addresses */
if (!(*addrs & 1))
* promiscuous mode (for TCPDUMP and cousins) or accept
* a select set of multicast packets
*/
-static void bf537mac_set_multicast_list(struct net_device *dev)
+static void bfin_mac_set_multicast_list(struct net_device *dev)
{
u32 sysctl;
sysctl = bfin_read_EMAC_OPMODE();
sysctl |= PAM;
bfin_write_EMAC_OPMODE(sysctl);
- } else if (dev->mc_count) {
+ } else if (!netdev_mc_empty(dev)) {
/* set up multicast hash table */
sysctl = bfin_read_EMAC_OPMODE();
sysctl |= HM;
bfin_write_EMAC_OPMODE(sysctl);
- bf537mac_multicast_hash(dev);
+ bfin_mac_multicast_hash(dev);
} else {
/* clear promisc or multicast mode */
sysctl = bfin_read_EMAC_OPMODE();
/*
* this puts the device in an inactive state
*/
-static void bf537mac_shutdown(struct net_device *dev)
+static void bfin_mac_shutdown(struct net_device *dev)
{
/* Turn off the EMAC */
bfin_write_EMAC_OPMODE(0x00000000);
*
* Set up everything, reset the card, etc..
*/
-static int bf537mac_open(struct net_device *dev)
+static int bfin_mac_open(struct net_device *dev)
{
- struct bf537mac_local *lp = netdev_priv(dev);
+ struct bfin_mac_local *lp = netdev_priv(dev);
int retval;
- pr_debug("%s: %s\n", dev->name, __FUNCTION__);
+ pr_debug("%s: %s\n", dev->name, __func__);
/*
* Check that the address is valid. If its not, refuse
return retval;
phy_start(lp->phydev);
+ phy_write(lp->phydev, MII_BMCR, BMCR_RESET);
setup_system_regs(dev);
- bf537mac_disable();
- bf537mac_enable();
-
+ setup_mac_addr(dev->dev_addr);
+ bfin_mac_disable();
+ bfin_mac_enable();
pr_debug("hardware init finished\n");
netif_start_queue(dev);
netif_carrier_on(dev);
}
/*
- *
* this makes the board clean up everything that it can
* and not talk to the outside world. Caused by
* an 'ifconfig ethX down'
*/
-static int bf537mac_close(struct net_device *dev)
+static int bfin_mac_close(struct net_device *dev)
{
- struct bf537mac_local *lp = netdev_priv(dev);
- pr_debug("%s: %s\n", dev->name, __FUNCTION__);
+ struct bfin_mac_local *lp = netdev_priv(dev);
+ pr_debug("%s: %s\n", dev->name, __func__);
netif_stop_queue(dev);
netif_carrier_off(dev);
phy_stop(lp->phydev);
+ phy_write(lp->phydev, MII_BMCR, BMCR_PDOWN);
/* clear everything */
- bf537mac_shutdown(dev);
+ bfin_mac_shutdown(dev);
/* free the rx/tx buffers */
desc_list_free();
return 0;
}
-static int __init bf537mac_probe(struct net_device *dev)
+static const struct net_device_ops bfin_mac_netdev_ops = {
+ .ndo_open = bfin_mac_open,
+ .ndo_stop = bfin_mac_close,
+ .ndo_start_xmit = bfin_mac_hard_start_xmit,
+ .ndo_set_mac_address = bfin_mac_set_mac_address,
+ .ndo_tx_timeout = bfin_mac_timeout,
+ .ndo_set_multicast_list = bfin_mac_set_multicast_list,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_change_mtu = eth_change_mtu,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = bfin_mac_poll,
+#endif
+};
+
+static int __devinit bfin_mac_probe(struct platform_device *pdev)
{
- struct bf537mac_local *lp = netdev_priv(dev);
- int retval;
- int i;
+ struct net_device *ndev;
+ struct bfin_mac_local *lp;
+ struct platform_device *pd;
+ int rc;
+
+ ndev = alloc_etherdev(sizeof(struct bfin_mac_local));
+ if (!ndev) {
+ dev_err(&pdev->dev, "Cannot allocate net device!\n");
+ return -ENOMEM;
+ }
+
+ SET_NETDEV_DEV(ndev, &pdev->dev);
+ platform_set_drvdata(pdev, ndev);
+ lp = netdev_priv(ndev);
/* Grab the MAC address in the MAC */
- *(__le32 *) (&(dev->dev_addr[0])) = cpu_to_le32(bfin_read_EMAC_ADDRLO());
- *(__le16 *) (&(dev->dev_addr[4])) = cpu_to_le16((u16) bfin_read_EMAC_ADDRHI());
+ *(__le32 *) (&(ndev->dev_addr[0])) = cpu_to_le32(bfin_read_EMAC_ADDRLO());
+ *(__le16 *) (&(ndev->dev_addr[4])) = cpu_to_le16((u16) bfin_read_EMAC_ADDRHI());
/* probe mac */
/*todo: how to proble? which is revision_register */
bfin_write_EMAC_ADDRLO(0x12345678);
if (bfin_read_EMAC_ADDRLO() != 0x12345678) {
- pr_debug("can't detect bf537 mac!\n");
- retval = -ENODEV;
- goto err_out;
+ dev_err(&pdev->dev, "Cannot detect Blackfin on-chip ethernet MAC controller!\n");
+ rc = -ENODEV;
+ goto out_err_probe_mac;
}
- /* set the GPIO pins to Ethernet mode */
- retval = setup_pin_mux(1);
- if (retval)
- return retval;
- /*Is it valid? (Did bootloader initialize it?) */
- if (!is_valid_ether_addr(dev->dev_addr)) {
- /* Grab the MAC from the board somehow - this is done in the
- arch/blackfin/mach-bf537/boards/eth_mac.c */
- bfin_get_ether_addr(dev->dev_addr);
- }
+ /*
+ * Is it valid? (Did bootloader initialize it?)
+ * Grab the MAC from the board somehow
+ * this is done in the arch/blackfin/mach-bfxxx/boards/eth_mac.c
+ */
+ if (!is_valid_ether_addr(ndev->dev_addr))
+ bfin_get_ether_addr(ndev->dev_addr);
/* If still not valid, get a random one */
- if (!is_valid_ether_addr(dev->dev_addr)) {
- random_ether_addr(dev->dev_addr);
- }
+ if (!is_valid_ether_addr(ndev->dev_addr))
+ random_ether_addr(ndev->dev_addr);
- setup_mac_addr(dev->dev_addr);
-
- /* MDIO bus initial */
- lp->mii_bus.priv = dev;
- lp->mii_bus.read = mdiobus_read;
- lp->mii_bus.write = mdiobus_write;
- lp->mii_bus.reset = mdiobus_reset;
- lp->mii_bus.name = "bfin_mac_mdio";
- lp->mii_bus.id = 0;
- lp->mii_bus.irq = kmalloc(sizeof(int)*PHY_MAX_ADDR, GFP_KERNEL);
- for (i = 0; i < PHY_MAX_ADDR; ++i)
- lp->mii_bus.irq[i] = PHY_POLL;
-
- mdiobus_register(&lp->mii_bus);
+ setup_mac_addr(ndev->dev_addr);
- retval = mii_probe(dev);
- if (retval)
- return retval;
+ if (!pdev->dev.platform_data) {
+ dev_err(&pdev->dev, "Cannot get platform device bfin_mii_bus!\n");
+ rc = -ENODEV;
+ goto out_err_probe_mac;
+ }
+ pd = pdev->dev.platform_data;
+ lp->mii_bus = platform_get_drvdata(pd);
+ lp->mii_bus->priv = ndev;
+
+ rc = mii_probe(ndev);
+ if (rc) {
+ dev_err(&pdev->dev, "MII Probe failed!\n");
+ goto out_err_mii_probe;
+ }
/* Fill in the fields of the device structure with ethernet values. */
- ether_setup(dev);
-
- dev->open = bf537mac_open;
- dev->stop = bf537mac_close;
- dev->hard_start_xmit = bf537mac_hard_start_xmit;
- dev->set_mac_address = bf537mac_set_mac_address;
- dev->tx_timeout = bf537mac_timeout;
- dev->set_multicast_list = bf537mac_set_multicast_list;
-#ifdef CONFIG_NET_POLL_CONTROLLER
- dev->poll_controller = bf537mac_poll;
-#endif
+ ether_setup(ndev);
+
+ ndev->netdev_ops = &bfin_mac_netdev_ops;
+ ndev->ethtool_ops = &bfin_mac_ethtool_ops;
spin_lock_init(&lp->lock);
/* now, enable interrupts */
/* register irq handler */
- if (request_irq
- (IRQ_MAC_RX, bf537mac_interrupt, IRQF_DISABLED | IRQF_SHARED,
- "BFIN537_MAC_RX", dev)) {
- printk(KERN_WARNING DRV_NAME
- ": Unable to attach BlackFin MAC RX interrupt\n");
- return -EBUSY;
+ rc = request_irq(IRQ_MAC_RX, bfin_mac_interrupt,
+ IRQF_DISABLED, "EMAC_RX", ndev);
+ if (rc) {
+ dev_err(&pdev->dev, "Cannot request Blackfin MAC RX IRQ!\n");
+ rc = -EBUSY;
+ goto out_err_request_irq;
}
-
- retval = register_netdev(dev);
- if (retval == 0) {
- /* now, print out the card info, in a short format.. */
- printk(KERN_INFO "%s: Version %s, %s\n",
- DRV_NAME, DRV_VERSION, DRV_DESC);
- }
-
-err_out:
- return retval;
-}
-
-static int bfin_mac_probe(struct platform_device *pdev)
-{
- struct net_device *ndev;
-
- ndev = alloc_etherdev(sizeof(struct bf537mac_local));
- if (!ndev) {
- printk(KERN_WARNING DRV_NAME ": could not allocate device\n");
- return -ENOMEM;
+ rc = register_netdev(ndev);
+ if (rc) {
+ dev_err(&pdev->dev, "Cannot register net device!\n");
+ goto out_err_reg_ndev;
}
- SET_NETDEV_DEV(ndev, &pdev->dev);
+ /* now, print out the card info, in a short format.. */
+ dev_info(&pdev->dev, "%s, Version %s\n", DRV_DESC, DRV_VERSION);
- platform_set_drvdata(pdev, ndev);
+ return 0;
- if (bf537mac_probe(ndev) != 0) {
- platform_set_drvdata(pdev, NULL);
- free_netdev(ndev);
- printk(KERN_WARNING DRV_NAME ": not found\n");
- return -ENODEV;
- }
+out_err_reg_ndev:
+ free_irq(IRQ_MAC_RX, ndev);
+out_err_request_irq:
+out_err_mii_probe:
+ mdiobus_unregister(lp->mii_bus);
+ mdiobus_free(lp->mii_bus);
+ peripheral_free_list(pin_req);
+out_err_probe_mac:
+ platform_set_drvdata(pdev, NULL);
+ free_netdev(ndev);
- return 0;
+ return rc;
}
-static int bfin_mac_remove(struct platform_device *pdev)
+static int __devexit bfin_mac_remove(struct platform_device *pdev)
{
struct net_device *ndev = platform_get_drvdata(pdev);
+ struct bfin_mac_local *lp = netdev_priv(ndev);
platform_set_drvdata(pdev, NULL);
+ lp->mii_bus->priv = NULL;
+
unregister_netdev(ndev);
free_irq(IRQ_MAC_RX, ndev);
free_netdev(ndev);
- setup_pin_mux(0);
+ peripheral_free_list(pin_req);
return 0;
}
struct net_device *net_dev = platform_get_drvdata(pdev);
if (netif_running(net_dev))
- bf537mac_close(net_dev);
+ bfin_mac_close(net_dev);
return 0;
}
struct net_device *net_dev = platform_get_drvdata(pdev);
if (netif_running(net_dev))
- bf537mac_open(net_dev);
+ bfin_mac_open(net_dev);
return 0;
}
#define bfin_mac_resume NULL
#endif /* CONFIG_PM */
+static int __devinit bfin_mii_bus_probe(struct platform_device *pdev)
+{
+ struct mii_bus *miibus;
+ int rc, i;
+
+ /*
+ * We are setting up a network card,
+ * so set the GPIO pins to Ethernet mode
+ */
+ rc = peripheral_request_list(pin_req, DRV_NAME);
+ if (rc) {
+ dev_err(&pdev->dev, "Requesting peripherals failed!\n");
+ return rc;
+ }
+
+ rc = -ENOMEM;
+ miibus = mdiobus_alloc();
+ if (miibus == NULL)
+ goto out_err_alloc;
+ miibus->read = bfin_mdiobus_read;
+ miibus->write = bfin_mdiobus_write;
+ miibus->reset = bfin_mdiobus_reset;
+
+ miibus->parent = &pdev->dev;
+ miibus->name = "bfin_mii_bus";
+ snprintf(miibus->id, MII_BUS_ID_SIZE, "0");
+ miibus->irq = kmalloc(sizeof(int)*PHY_MAX_ADDR, GFP_KERNEL);
+ if (miibus->irq == NULL)
+ goto out_err_alloc;
+ for (i = 0; i < PHY_MAX_ADDR; ++i)
+ miibus->irq[i] = PHY_POLL;
+
+ rc = mdiobus_register(miibus);
+ if (rc) {
+ dev_err(&pdev->dev, "Cannot register MDIO bus!\n");
+ goto out_err_mdiobus_register;
+ }
+
+ platform_set_drvdata(pdev, miibus);
+ return 0;
+
+out_err_mdiobus_register:
+ mdiobus_free(miibus);
+out_err_alloc:
+ peripheral_free_list(pin_req);
+
+ return rc;
+}
+
+static int __devexit bfin_mii_bus_remove(struct platform_device *pdev)
+{
+ struct mii_bus *miibus = platform_get_drvdata(pdev);
+ platform_set_drvdata(pdev, NULL);
+ mdiobus_unregister(miibus);
+ mdiobus_free(miibus);
+ peripheral_free_list(pin_req);
+ return 0;
+}
+
+static struct platform_driver bfin_mii_bus_driver = {
+ .probe = bfin_mii_bus_probe,
+ .remove = __devexit_p(bfin_mii_bus_remove),
+ .driver = {
+ .name = "bfin_mii_bus",
+ .owner = THIS_MODULE,
+ },
+};
+
static struct platform_driver bfin_mac_driver = {
.probe = bfin_mac_probe,
- .remove = bfin_mac_remove,
+ .remove = __devexit_p(bfin_mac_remove),
.resume = bfin_mac_resume,
.suspend = bfin_mac_suspend,
.driver = {
- .name = DRV_NAME,
- },
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+ },
};
static int __init bfin_mac_init(void)
{
- return platform_driver_register(&bfin_mac_driver);
+ int ret;
+ ret = platform_driver_register(&bfin_mii_bus_driver);
+ if (!ret)
+ return platform_driver_register(&bfin_mac_driver);
+ return -ENODEV;
}
module_init(bfin_mac_init);
static void __exit bfin_mac_cleanup(void)
{
platform_driver_unregister(&bfin_mac_driver);
+ platform_driver_unregister(&bfin_mii_bus_driver);
}
module_exit(bfin_mac_cleanup);
+
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff