diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-25 18:41:32 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-25 18:41:32 -0700 |
commit | 4833c16dea61cb30d6f77dfec3067a08ba79b361 (patch) | |
tree | fdf6cd3a851bca2c8c9db2e751abd5eddfcb2f66 /drivers | |
parent | e0e170bd7ded2ec16e2813d63c0faff43193fde8 (diff) | |
parent | ad3e01a331435a06055cdaf19cc973dd138dc925 (diff) |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin:
Blackfin: fix inverted anomaly 05000481 logic
Blackfin: drop unused irq_panic()/DEBUG_ICACHE_CHECK
Blackfin: ppi/spi/twi headers: add missing __BFP undef
Blackfin: update defconfigs
Blackfin: bfin_twi.h: start a common TWI header
netdev: bfin_mac: push settings to platform resources
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/net/Kconfig | 8 | ||||
-rw-r--r-- | drivers/net/bfin_mac.c | 145 | ||||
-rw-r--r-- | drivers/net/bfin_mac.h | 2 |
3 files changed, 96 insertions, 59 deletions
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 702f598f495..86fe67fd49b 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -883,14 +883,6 @@ config BFIN_RX_DESC_NUM help Set the number of buffer packets used in driver. -config BFIN_MAC_RMII - bool "RMII PHY Interface" - depends on BFIN_MAC - default y if BFIN527_EZKIT - default n if BFIN537_STAMP - help - Use Reduced PHY MII Interface - config BFIN_MAC_USE_HWSTAMP bool "Use IEEE 1588 hwstamp" depends on BFIN_MAC && BF518 diff --git a/drivers/net/bfin_mac.c b/drivers/net/bfin_mac.c index f7233191162..ce1e5e9d06f 100644 --- a/drivers/net/bfin_mac.c +++ b/drivers/net/bfin_mac.c @@ -1,7 +1,7 @@ /* * Blackfin On-Chip MAC Driver * - * Copyright 2004-2007 Analog Devices Inc. + * Copyright 2004-2010 Analog Devices Inc. * * Enter bugs at http://blackfin.uclinux.org/ * @@ -23,7 +23,6 @@ #include <linux/device.h> #include <linux/spinlock.h> #include <linux/mii.h> -#include <linux/phy.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/ethtool.h> @@ -76,12 +75,6 @@ static struct net_dma_desc_tx *current_tx_ptr; static struct net_dma_desc_tx *tx_desc; static struct net_dma_desc_rx *rx_desc; -#if defined(CONFIG_BFIN_MAC_RMII) -static u16 pin_req[] = P_RMII0; -#else -static u16 pin_req[] = P_MII0; -#endif - static void desc_list_free(void) { struct net_dma_desc_rx *r; @@ -347,23 +340,23 @@ static void bfin_mac_adjust_link(struct net_device *dev) } if (phydev->speed != lp->old_speed) { -#if defined(CONFIG_BFIN_MAC_RMII) - u32 opmode = bfin_read_EMAC_OPMODE(); - switch (phydev->speed) { - case 10: - opmode |= RMII_10; - break; - case 100: - opmode &= ~(RMII_10); - break; - default: - printk(KERN_WARNING - "%s: Ack! Speed (%d) is not 10/100!\n", - DRV_NAME, phydev->speed); - break; + if (phydev->interface == PHY_INTERFACE_MODE_RMII) { + u32 opmode = bfin_read_EMAC_OPMODE(); + switch (phydev->speed) { + case 10: + opmode |= RMII_10; + break; + case 100: + opmode &= ~RMII_10; + break; + default: + printk(KERN_WARNING + "%s: Ack! Speed (%d) is not 10/100!\n", + DRV_NAME, phydev->speed); + break; + } + bfin_write_EMAC_OPMODE(opmode); } - bfin_write_EMAC_OPMODE(opmode); -#endif new_state = 1; lp->old_speed = phydev->speed; @@ -392,7 +385,7 @@ static void bfin_mac_adjust_link(struct net_device *dev) /* MDC = 2.5 MHz */ #define MDC_CLK 2500000 -static int mii_probe(struct net_device *dev) +static int mii_probe(struct net_device *dev, int phy_mode) { struct bfin_mac_local *lp = netdev_priv(dev); struct phy_device *phydev = NULL; @@ -411,8 +404,8 @@ static int mii_probe(struct net_device *dev) 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++) { + /* search for connected PHY device */ + for (i = 0; i < PHY_MAX_ADDR; ++i) { struct phy_device *const tmp_phydev = lp->mii_bus->phy_map[i]; if (!tmp_phydev) @@ -429,13 +422,14 @@ static int mii_probe(struct net_device *dev) return -ENODEV; } -#if defined(CONFIG_BFIN_MAC_RMII) - phydev = phy_connect(dev, dev_name(&phydev->dev), &bfin_mac_adjust_link, - 0, PHY_INTERFACE_MODE_RMII); -#else + if (phy_mode != PHY_INTERFACE_MODE_RMII && + phy_mode != PHY_INTERFACE_MODE_MII) { + printk(KERN_INFO "%s: Invalid phy interface mode\n", dev->name); + return -EINVAL; + } + phydev = phy_connect(dev, dev_name(&phydev->dev), &bfin_mac_adjust_link, - 0, PHY_INTERFACE_MODE_MII); -#endif + 0, phy_mode); if (IS_ERR(phydev)) { printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name); @@ -570,6 +564,8 @@ static const struct ethtool_ops bfin_mac_ethtool_ops = { /**************************************************************************/ void setup_system_regs(struct net_device *dev) { + struct bfin_mac_local *lp = netdev_priv(dev); + int i; unsigned short sysctl; /* @@ -577,6 +573,15 @@ void setup_system_regs(struct net_device *dev) * Configure checksum support and rcve frame word alignment */ sysctl = bfin_read_EMAC_SYSCTL(); + /* + * check if interrupt is requested for any PHY, + * enable PHY interrupt only if needed + */ + for (i = 0; i < PHY_MAX_ADDR; ++i) + if (lp->mii_bus->irq[i] != PHY_POLL) + break; + if (i < PHY_MAX_ADDR) + sysctl |= PHYIE; sysctl |= RXDWA; #if defined(BFIN_MAC_CSUM_OFFLOAD) sysctl |= RXCKS; @@ -1203,7 +1208,7 @@ static void bfin_mac_disable(void) /* * Enable Interrupts, Receive, and Transmit */ -static int bfin_mac_enable(void) +static int bfin_mac_enable(struct phy_device *phydev) { int ret; u32 opmode; @@ -1233,12 +1238,13 @@ static int bfin_mac_enable(void) opmode |= DRO | DC | PSF; opmode |= RE; -#if defined(CONFIG_BFIN_MAC_RMII) - opmode |= RMII; /* For Now only 100MBit are supported */ + if (phydev->interface == PHY_INTERFACE_MODE_RMII) { + opmode |= RMII; /* For Now only 100MBit are supported */ #if (defined(CONFIG_BF537) || defined(CONFIG_BF536)) && CONFIG_BF_REV_0_2 - opmode |= TE; -#endif + opmode |= TE; #endif + } + /* Turn on the EMAC rx */ bfin_write_EMAC_OPMODE(opmode); @@ -1270,7 +1276,7 @@ static void bfin_mac_timeout(struct net_device *dev) if (netif_queue_stopped(lp->ndev)) netif_wake_queue(lp->ndev); - bfin_mac_enable(); + bfin_mac_enable(lp->phydev); /* We can accept TX packets again */ dev->trans_start = jiffies; /* prevent tx timeout */ @@ -1342,11 +1348,19 @@ static void bfin_mac_set_multicast_list(struct net_device *dev) static int bfin_mac_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) { + struct bfin_mac_local *lp = netdev_priv(netdev); + + if (!netif_running(netdev)) + return -EINVAL; + switch (cmd) { case SIOCSHWTSTAMP: return bfin_mac_hwtstamp_ioctl(netdev, ifr, cmd); default: - return -EOPNOTSUPP; + if (lp->phydev) + return phy_mii_ioctl(lp->phydev, ifr, cmd); + else + return -EOPNOTSUPP; } } @@ -1394,7 +1408,7 @@ static int bfin_mac_open(struct net_device *dev) setup_mac_addr(dev->dev_addr); bfin_mac_disable(); - ret = bfin_mac_enable(); + ret = bfin_mac_enable(lp->phydev); if (ret) return ret; pr_debug("hardware init finished\n"); @@ -1450,6 +1464,7 @@ static int __devinit bfin_mac_probe(struct platform_device *pdev) struct net_device *ndev; struct bfin_mac_local *lp; struct platform_device *pd; + struct bfin_mii_bus_platform_data *mii_bus_data; int rc; ndev = alloc_etherdev(sizeof(struct bfin_mac_local)); @@ -1501,11 +1516,12 @@ static int __devinit bfin_mac_probe(struct platform_device *pdev) if (!lp->mii_bus) { dev_err(&pdev->dev, "Cannot get mii_bus!\n"); rc = -ENODEV; - goto out_err_mii_bus_probe; + goto out_err_probe_mac; } lp->mii_bus->priv = ndev; + mii_bus_data = pd->dev.platform_data; - rc = mii_probe(ndev); + rc = mii_probe(ndev, mii_bus_data->phy_mode); if (rc) { dev_err(&pdev->dev, "MII Probe failed!\n"); goto out_err_mii_probe; @@ -1552,8 +1568,6 @@ out_err_request_irq: out_err_mii_probe: mdiobus_unregister(lp->mii_bus); mdiobus_free(lp->mii_bus); -out_err_mii_bus_probe: - peripheral_free_list(pin_req); out_err_probe_mac: platform_set_drvdata(pdev, NULL); free_netdev(ndev); @@ -1576,8 +1590,6 @@ static int __devexit bfin_mac_remove(struct platform_device *pdev) free_netdev(ndev); - peripheral_free_list(pin_req); - return 0; } @@ -1623,12 +1635,21 @@ static int bfin_mac_resume(struct platform_device *pdev) static int __devinit bfin_mii_bus_probe(struct platform_device *pdev) { struct mii_bus *miibus; + struct bfin_mii_bus_platform_data *mii_bus_pd; + const unsigned short *pin_req; int rc, i; + mii_bus_pd = dev_get_platdata(&pdev->dev); + if (!mii_bus_pd) { + dev_err(&pdev->dev, "No peripherals in platform data!\n"); + return -EINVAL; + } + /* * We are setting up a network card, * so set the GPIO pins to Ethernet mode */ + pin_req = mii_bus_pd->mac_peripherals; rc = peripheral_request_list(pin_req, DRV_NAME); if (rc) { dev_err(&pdev->dev, "Requesting peripherals failed!\n"); @@ -1645,13 +1666,30 @@ static int __devinit bfin_mii_bus_probe(struct platform_device *pdev) miibus->parent = &pdev->dev; miibus->name = "bfin_mii_bus"; + miibus->phy_mask = mii_bus_pd->phy_mask; + 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) + if (!miibus->irq) + goto out_err_irq_alloc; + + for (i = rc; i < PHY_MAX_ADDR; ++i) miibus->irq[i] = PHY_POLL; + rc = clamp(mii_bus_pd->phydev_number, 0, PHY_MAX_ADDR); + if (rc != mii_bus_pd->phydev_number) + dev_err(&pdev->dev, "Invalid number (%i) of phydevs\n", + mii_bus_pd->phydev_number); + for (i = 0; i < rc; ++i) { + unsigned short phyaddr = mii_bus_pd->phydev_data[i].addr; + if (phyaddr < PHY_MAX_ADDR) + miibus->irq[phyaddr] = mii_bus_pd->phydev_data[i].irq; + else + dev_err(&pdev->dev, + "Invalid PHY address %i for phydev %i\n", + phyaddr, i); + } + rc = mdiobus_register(miibus); if (rc) { dev_err(&pdev->dev, "Cannot register MDIO bus!\n"); @@ -1663,6 +1701,7 @@ static int __devinit bfin_mii_bus_probe(struct platform_device *pdev) out_err_mdiobus_register: kfree(miibus->irq); +out_err_irq_alloc: mdiobus_free(miibus); out_err_alloc: peripheral_free_list(pin_req); @@ -1673,11 +1712,15 @@ out_err_alloc: static int __devexit bfin_mii_bus_remove(struct platform_device *pdev) { struct mii_bus *miibus = platform_get_drvdata(pdev); + struct bfin_mii_bus_platform_data *mii_bus_pd = + dev_get_platdata(&pdev->dev); + platform_set_drvdata(pdev, NULL); mdiobus_unregister(miibus); kfree(miibus->irq); mdiobus_free(miibus); - peripheral_free_list(pin_req); + peripheral_free_list(mii_bus_pd->mac_peripherals); + return 0; } diff --git a/drivers/net/bfin_mac.h b/drivers/net/bfin_mac.h index 04e4050df18..aed68bed236 100644 --- a/drivers/net/bfin_mac.h +++ b/drivers/net/bfin_mac.h @@ -14,6 +14,8 @@ #include <linux/clocksource.h> #include <linux/timecompare.h> #include <linux/timer.h> +#include <linux/etherdevice.h> +#include <linux/bfin_mac.h> #define BFIN_MAC_CSUM_OFFLOAD |