diff options
Diffstat (limited to 'target/linux/ar71xx/files/drivers/net/ag71xx')
| -rw-r--r-- | target/linux/ar71xx/files/drivers/net/ag71xx/Makefile | 2 | ||||
| -rw-r--r-- | target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h | 160 | ||||
| -rw-r--r-- | target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c | 84 | ||||
| -rw-r--r-- | target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_mdio.c | 226 | ||||
| -rw-r--r-- | target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_phy.c (renamed from target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_mii.c) | 236 |
5 files changed, 444 insertions, 264 deletions
diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/Makefile b/target/linux/ar71xx/files/drivers/net/ag71xx/Makefile index 452ee36cb..37c98d22a 100644 --- a/target/linux/ar71xx/files/drivers/net/ag71xx/Makefile +++ b/target/linux/ar71xx/files/drivers/net/ag71xx/Makefile @@ -4,4 +4,4 @@ obj-$(CONFIG_AG71XX) += ag71xx.o -ag71xx-objs := ag71xx_main.o ag71xx_mii.o ag71xx_ethtool.o +ag71xx-objs := ag71xx_main.o ag71xx_ethtool.o ag71xx_phy.o ag71xx_mdio.o diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h index 247667dc8..230e4816d 100644 --- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h +++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h @@ -15,6 +15,7 @@ #define __AG71XX_H #include <linux/kernel.h> +#include <linux/version.h> #include <linux/module.h> #include <linux/init.h> #include <linux/types.h> @@ -36,7 +37,7 @@ #define ETH_FCS_LEN 4 #define AG71XX_DRV_NAME "ag71xx" -#define AG71XX_DRV_VERSION "0.3.10" +#define AG71XX_DRV_VERSION "0.4.0" #define AG71XX_NAPI_TX 1 @@ -67,8 +68,8 @@ #define AG71XX_RX_RING_SIZE 128 -#undef DEBUG -#ifdef DEBUG +#undef AG71XX_DEBUG +#ifdef AG71XX_DEBUG #define DBG(fmt, args...) printk(KERN_DEBUG fmt, ## args) #else #define DBG(fmt, args...) do {} while (0) @@ -104,8 +105,15 @@ struct ag71xx_ring { unsigned int size; }; +struct ag71xx_mdio { + struct mii_bus mii_bus; + int mii_irq[PHY_MAX_ADDR]; + void __iomem *mdio_base; +}; + struct ag71xx { void __iomem *mac_base; + void __iomem *mac_base2; void __iomem *mii_ctrl; spinlock_t lock; @@ -116,8 +124,8 @@ struct ag71xx { struct ag71xx_ring rx_ring; struct ag71xx_ring tx_ring; + struct mii_bus *mii_bus; struct phy_device *phy_dev; - struct mii_bus mii_bus; unsigned int link; unsigned int speed; @@ -126,42 +134,20 @@ struct ag71xx { extern struct ethtool_ops ag71xx_ethtool_ops; -extern int ag71xx_mdio_init(struct ag71xx *ag, int id); -extern void ag71xx_mdio_cleanup(struct ag71xx *ag); -extern int ag71xx_mii_peek(struct ag71xx *ag); -extern void ag71xx_mii_ctrl_set_if(struct ag71xx *ag, unsigned int mii_if); -extern void ag71xx_mii_ctrl_set_speed(struct ag71xx *ag, unsigned int speed); -extern void ag71xx_link_update(struct ag71xx *ag); +extern struct ag71xx_mdio *ag71xx_mdio_bus; +extern int ag71xx_mdio_driver_init(void) __init; +extern void ag71xx_mdio_driver_exit(void); + +extern int ag71xx_phy_connect(struct ag71xx *ag); +extern void ag71xx_phy_disconnect(struct ag71xx *ag); +extern void ag71xx_phy_start(struct ag71xx *ag); +extern void ag71xx_phy_stop(struct ag71xx *ag); static inline struct ag71xx_platform_data *ag71xx_get_pdata(struct ag71xx *ag) { return ag->pdev->dev.platform_data; } -static inline void ag71xx_wr(struct ag71xx *ag, unsigned reg, u32 value) -{ - __raw_writel(value, ag->mac_base + reg); -} - -static inline u32 ag71xx_rr(struct ag71xx *ag, unsigned reg) -{ - return __raw_readl(ag->mac_base + reg); -} - -static inline void ag71xx_sb(struct ag71xx *ag, unsigned reg, u32 mask) -{ - void __iomem *r = ag->mac_base + reg; - - __raw_writel(__raw_readl(r) | mask, r); -} - -static inline void ag71xx_cb(struct ag71xx *ag, unsigned reg, u32 mask) -{ - void __iomem *r = ag->mac_base + reg; - - __raw_writel(__raw_readl(r) & ~mask, r); -} - static inline int ag71xx_desc_empty(struct ag71xx_desc *desc) { return ((desc->ctrl & DESC_EMPTY) != 0); @@ -242,6 +228,7 @@ static inline int ag71xx_desc_pktlen(struct ag71xx_desc *desc) #define MII_CFG_CLK_DIV_14 5 #define MII_CFG_CLK_DIV_20 6 #define MII_CFG_CLK_DIV_28 7 +#define MII_CFG_RESET BIT(31) #define MII_CMD_WRITE 0x0 #define MII_CMD_READ 0x1 @@ -263,12 +250,81 @@ static inline int ag71xx_desc_pktlen(struct ag71xx_desc *desc) #define FIFO_CFG5_BYTE_PER_CLK BIT(19) -#define MII_CTRL_SPEED_S 4 -#define MII_CTRL_SPEED_M 3 +#define MII_CTRL_IF_MASK 3 +#define MII_CTRL_SPEED_SHIFT 4 +#define MII_CTRL_SPEED_MASK 3 #define MII_CTRL_SPEED_10 0 #define MII_CTRL_SPEED_100 1 #define MII_CTRL_SPEED_1000 2 +static inline void ag71xx_wr(struct ag71xx *ag, unsigned reg, u32 value) +{ + switch (reg) { + case AG71XX_REG_MAC_CFG1 ... AG71XX_REG_MAC_MFL: + __raw_writel(value, ag->mac_base + reg); + break; + case AG71XX_REG_MAC_IFCTL ... AG71XX_REG_INT_STATUS: + reg -= AG71XX_REG_MAC_IFCTL; + __raw_writel(value, ag->mac_base2 + reg); + break; + default: + BUG(); + } +} + +static inline u32 ag71xx_rr(struct ag71xx *ag, unsigned reg) +{ + u32 ret; + + switch (reg) { + case AG71XX_REG_MAC_CFG1 ... AG71XX_REG_MAC_MFL: + ret = __raw_readl(ag->mac_base + reg); + break; + case AG71XX_REG_MAC_IFCTL ... AG71XX_REG_INT_STATUS: + reg -= AG71XX_REG_MAC_IFCTL; + ret = __raw_readl(ag->mac_base2 + reg); + break; + } + + return ret; +} + +static inline void ag71xx_sb(struct ag71xx *ag, unsigned reg, u32 mask) +{ + void __iomem *r; + + switch (reg) { + case AG71XX_REG_MAC_CFG1 ... AG71XX_REG_MAC_MFL: + r = ag->mac_base + reg; + __raw_writel(__raw_readl(r) | mask, r); + break; + case AG71XX_REG_MAC_IFCTL ... AG71XX_REG_INT_STATUS: + r = ag->mac_base2 + reg - AG71XX_REG_MAC_IFCTL; + __raw_writel(__raw_readl(r) | mask, r); + break; + default: + BUG(); + } +} + +static inline void ag71xx_cb(struct ag71xx *ag, unsigned reg, u32 mask) +{ + void __iomem *r; + + switch (reg) { + case AG71XX_REG_MAC_CFG1 ... AG71XX_REG_MAC_MFL: + r = ag->mac_base + reg; + __raw_writel(__raw_readl(r) & ~mask, r); + break; + case AG71XX_REG_MAC_IFCTL ... AG71XX_REG_INT_STATUS: + r = ag->mac_base2 + reg - AG71XX_REG_MAC_IFCTL; + __raw_writel(__raw_readl(r) & ~mask, r); + break; + default: + BUG(); + } +} + static inline void ag71xx_int_enable(struct ag71xx *ag, u32 ints) { ag71xx_sb(ag, AG71XX_REG_INT_ENABLE, ints); @@ -279,4 +335,36 @@ static inline void ag71xx_int_disable(struct ag71xx *ag, u32 ints) ag71xx_cb(ag, AG71XX_REG_INT_ENABLE, ints); } +static inline void ag71xx_mii_ctrl_wr(struct ag71xx *ag, u32 value) +{ + __raw_writel(value, ag->mii_ctrl); +} + +static inline u32 ag71xx_mii_ctrl_rr(struct ag71xx *ag) +{ + return __raw_readl(ag->mii_ctrl); +} + +static void inline ag71xx_mii_ctrl_set_if(struct ag71xx *ag, + unsigned int mii_if) +{ + u32 t; + + t = ag71xx_mii_ctrl_rr(ag); + t &= ~(MII_CTRL_IF_MASK); + t |= (mii_if & MII_CTRL_IF_MASK); + ag71xx_mii_ctrl_wr(ag, t); +} + +static void inline ag71xx_mii_ctrl_set_speed(struct ag71xx *ag, + unsigned int speed) +{ + u32 t; + + t = ag71xx_mii_ctrl_rr(ag); + t &= ~(MII_CTRL_SPEED_MASK << MII_CTRL_SPEED_SHIFT); + t |= (speed & MII_CTRL_SPEED_MASK) << MII_CTRL_SPEED_SHIFT; + ag71xx_mii_ctrl_wr(ag, t); +} + #endif /* _AG71XX_H */ diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c index 065f6033a..88ed22a42 100644 --- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c +++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c @@ -22,16 +22,6 @@ static void ag71xx_dump_regs(struct ag71xx *ag) ag71xx_rr(ag, AG71XX_REG_MAC_IPG), ag71xx_rr(ag, AG71XX_REG_MAC_HDX), ag71xx_rr(ag, AG71XX_REG_MAC_MFL)); - DBG("%s: mii_cfg=%08x, mii_cmd=%08x, mii_addr=%08x\n", - ag->dev->name, - ag71xx_rr(ag, AG71XX_REG_MII_CFG), - ag71xx_rr(ag, AG71XX_REG_MII_CMD), - ag71xx_rr(ag, AG71XX_REG_MII_ADDR)); - DBG("%s: mii_ctrl=%08x, mii_status=%08x, mii_ind=%08x\n", - ag->dev->name, - ag71xx_rr(ag, AG71XX_REG_MII_CTRL), - ag71xx_rr(ag, AG71XX_REG_MII_STATUS), - ag71xx_rr(ag, AG71XX_REG_MII_IND)); DBG("%s: mac_ifctl=%08x, mac_addr1=%08x, mac_addr2=%08x\n", ag->dev->name, ag71xx_rr(ag, AG71XX_REG_MAC_IFCTL), @@ -286,8 +276,6 @@ static void ag71xx_hw_init(struct ag71xx *ag) ag71xx_mii_ctrl_set_if(ag, pdata->mii_if); - ag71xx_wr(ag, AG71XX_REG_MII_CFG, MII_CFG_CLK_DIV_28); - ag71xx_wr(ag, AG71XX_REG_FIFO_CFG1, 0x0fff0000); ag71xx_wr(ag, AG71XX_REG_FIFO_CFG2, 0x00001fff); ag71xx_wr(ag, AG71XX_REG_FIFO_CFG4, 0x0000ffff); @@ -325,14 +313,7 @@ static int ag71xx_open(struct net_device *dev) napi_enable(&ag->napi); netif_carrier_off(dev); - if (ag->phy_dev) { - phy_start(ag->phy_dev); - } else { - ag->duplex = DUPLEX_FULL; - ag->speed = SPEED_100; - ag->link = 1; - ag71xx_link_update(ag); - } + ag71xx_phy_start(ag); ag71xx_wr(ag, AG71XX_REG_TX_DESC, ag->tx_ring.descs_dma); ag71xx_wr(ag, AG71XX_REG_RX_DESC, ag->rx_ring.descs_dma); @@ -362,14 +343,7 @@ static int ag71xx_stop(struct net_device *dev) ag71xx_hw_stop(ag); netif_carrier_off(dev); - if (ag->phy_dev) { - phy_stop(ag->phy_dev); - } else { - ag->duplex = -1; - ag->link = 0; - ag->speed = 0; - ag71xx_link_update(ag); - } + ag71xx_phy_stop(ag); napi_disable(&ag->napi); @@ -717,6 +691,7 @@ static int __init ag71xx_probe(struct platform_device *pdev) ag = netdev_priv(dev); ag->pdev = pdev; ag->dev = dev; + ag->mii_bus = &ag71xx_mdio_bus->mii_bus; spin_lock_init(&ag->lock); res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mac_base"); @@ -733,18 +708,32 @@ static int __init ag71xx_probe(struct platform_device *pdev) goto err_free_dev; } + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mac_base2"); + if (!res) { + dev_err(&pdev->dev, "no mac_base2 resource found\n"); + err = -ENXIO; + goto err_unmap_base1; + } + + ag->mac_base2 = ioremap_nocache(res->start, res->end - res->start + 1); + if (!ag->mac_base) { + dev_err(&pdev->dev, "unable to ioremap mac_base2\n"); + err = -ENOMEM; + goto err_unmap_base1; + } + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mii_ctrl"); if (!res) { dev_err(&pdev->dev, "no mii_ctrl resource found\n"); err = -ENXIO; - goto err_unmap_base; + goto err_unmap_base2; } ag->mii_ctrl = ioremap_nocache(res->start, res->end - res->start + 1); if (!ag->mii_ctrl) { dev_err(&pdev->dev, "unable to ioremap mii_ctrl\n"); err = -ENOMEM; - goto err_unmap_base; + goto err_unmap_base2; } dev->irq = platform_get_irq(pdev, 0); @@ -790,7 +779,14 @@ static int __init ag71xx_probe(struct platform_device *pdev) ag71xx_dump_regs(ag); - err = ag71xx_mdio_init(ag, pdev->id); + /* Reset the mdio bus explicitly */ + if (ag->mii_bus) { + mutex_lock(&ag->mii_bus->mdio_lock); + ag->mii_bus->reset(ag->mii_bus); + mutex_unlock(&ag->mii_bus->mdio_lock); + } + + err = ag71xx_phy_connect(ag); if (err) goto err_unregister_netdev; @@ -804,7 +800,9 @@ err_free_irq: free_irq(dev->irq, dev); err_unmap_mii_ctrl: iounmap(ag->mii_ctrl); -err_unmap_base: +err_unmap_base2: + iounmap(ag->mac_base2); +err_unmap_base1: iounmap(ag->mac_base); err_free_dev: kfree(dev); @@ -820,12 +818,11 @@ static int __exit ag71xx_remove(struct platform_device *pdev) if (dev) { struct ag71xx *ag = netdev_priv(dev); - if (ag->phy_dev) - phy_disconnect(ag->phy_dev); - ag71xx_mdio_cleanup(ag); + ag71xx_phy_disconnect(ag); unregister_netdev(dev); free_irq(dev->irq, dev); iounmap(ag->mii_ctrl); + iounmap(ag->mac_base2); iounmap(ag->mac_base); kfree(dev); platform_set_drvdata(pdev, NULL); @@ -844,7 +841,22 @@ static struct platform_driver ag71xx_driver = { static int __init ag71xx_module_init(void) { - return platform_driver_register(&ag71xx_driver); + int ret; + + ret = ag71xx_mdio_driver_init(); + if (ret) + goto err_out; + + ret = platform_driver_register(&ag71xx_driver); + if (ret) + goto err_mdio_exit; + + return 0; + +err_mdio_exit: + ag71xx_mdio_driver_exit(); +err_out: + return ret; } static void __exit ag71xx_module_exit(void) diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_mdio.c b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_mdio.c new file mode 100644 index 000000000..b58d3cb55 --- /dev/null +++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_mdio.c @@ -0,0 +1,226 @@ +/* + * Atheros AR71xx built-in ethernet mac driver + * + * Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org> + * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> + * + * Based on Atheros' AG7100 driver + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#include "ag71xx.h" + +#define AG71XX_MDIO_RETRY 1000 +#define AG71XX_MDIO_DELAY 5 + +struct ag71xx_mdio *ag71xx_mdio_bus; + +static inline void ag71xx_mdio_wr(struct ag71xx_mdio *am, unsigned reg, + u32 value) +{ + __raw_writel(value, am->mdio_base + reg - AG71XX_REG_MII_CFG); +} + +static inline u32 ag71xx_mdio_rr(struct ag71xx_mdio *am, unsigned reg) +{ + return __raw_readl(am->mdio_base + reg - AG71XX_REG_MII_CFG); +} + +static void ag71xx_mdio_dump_regs(struct ag71xx_mdio *am) +{ + DBG("%s: mii_cfg=%08x, mii_cmd=%08x, mii_addr=%08x\n", + am->mii_bus.name, + ag71xx_mdio_rr(am, AG71XX_REG_MII_CFG), + ag71xx_mdio_rr(am, AG71XX_REG_MII_CMD), + ag71xx_mdio_rr(am, AG71XX_REG_MII_ADDR)); + DBG("%s: mii_ctrl=%08x, mii_status=%08x, mii_ind=%08x\n", + am->mii_bus.name, + ag71xx_mdio_rr(am, AG71XX_REG_MII_CTRL), + ag71xx_mdio_rr(am, AG71XX_REG_MII_STATUS), + ag71xx_mdio_rr(am, AG71XX_REG_MII_IND)); +} + +static int ag71xx_mdio_mii_read(struct ag71xx_mdio *am, int addr, int reg) +{ + int ret; + int i; + + ag71xx_mdio_wr(am, AG71XX_REG_MII_CMD, MII_CMD_WRITE); + ag71xx_mdio_wr(am, AG71XX_REG_MII_ADDR, + ((addr & 0xff) << MII_ADDR_S) | (reg & 0xff)); + ag71xx_mdio_wr(am, AG71XX_REG_MII_CMD, MII_CMD_READ); + + i = AG71XX_MDIO_RETRY; + while (ag71xx_mdio_rr(am, AG71XX_REG_MII_IND) & MII_IND_BUSY) { + if (i-- == 0) { + printk(KERN_ERR "%s: mii_read timed out\n", + am->mii_bus.name); + ret = 0xffff; + goto out; + } + udelay(AG71XX_MDIO_DELAY); + } + + ret = ag71xx_mdio_rr(am, AG71XX_REG_MII_STATUS) & 0xffff; + ag71xx_mdio_wr(am, AG71XX_REG_MII_CMD, MII_CMD_WRITE); + + DBG("mii_read: addr=%04x, reg=%04x, value=%04x\n", addr, reg, ret); + +out: + return ret; +} + +static void ag71xx_mdio_mii_write(struct ag71xx_mdio *am, + int addr, int reg, u16 val) +{ + int i; + + DBG("mii_write: addr=%04x, reg=%04x, value=%04x\n", addr, reg, val); + + ag71xx_mdio_wr(am, AG71XX_REG_MII_ADDR, + ((addr & 0xff) << MII_ADDR_S) | (reg & 0xff)); + ag71xx_mdio_wr(am, AG71XX_REG_MII_CTRL, val); + + i = AG71XX_MDIO_RETRY; + while (ag71xx_mdio_rr(am, AG71XX_REG_MII_IND) & MII_IND_BUSY) { + if (i-- == 0) { + printk(KERN_ERR "%s: mii_write timed out\n", + am->mii_bus.name); + break; + } + udelay(AG71XX_MDIO_DELAY); + } +} + +static int ag71xx_mdio_reset(struct mii_bus *bus) +{ + struct ag71xx_mdio *am = bus->priv; + + ag71xx_mdio_wr(am, AG71XX_REG_MII_CFG, MII_CFG_RESET); + udelay(100); + + ag71xx_mdio_wr(am, AG71XX_REG_MII_CFG, MII_CFG_CLK_DIV_28); + udelay(100); + + return 0; +} + +static int ag71xx_mdio_read(struct mii_bus *bus, int addr, int reg) +{ + struct ag71xx_mdio *am = bus->priv; + + return ag71xx_mdio_mii_read(am, addr, reg); +} + +static int ag71xx_mdio_write(struct mii_bus *bus, int addr, int reg, u16 val) +{ + struct ag71xx_mdio *am = bus->priv; + + ag71xx_mdio_mii_write(am, addr, reg, val); + return 0; +} + +static int __init ag71xx_mdio_probe(struct platform_device *pdev) +{ + struct ag71xx_mdio_platform_data *pdata; + struct ag71xx_mdio *am; + struct resource *res; + int i; + int err; + + if (ag71xx_mdio_bus) + return -EBUSY; + + am = kzalloc(sizeof(*am), GFP_KERNEL); + if (!am) { + err = -ENOMEM; + goto err_out; + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(&pdev->dev, "no iomem resource found\n"); + err = -ENXIO; + goto err_out; + } + + am->mdio_base = ioremap_nocache(res->start, res->end - res->start + 1); + if (!am->mdio_base) { + dev_err(&pdev->dev, "unable to ioremap registers\n"); + err = -ENOMEM; + goto err_free_mdio; + } + + am->mii_bus.name = "ag71xx_mdio"; + am->mii_bus.read = ag71xx_mdio_read; + am->mii_bus.write = ag71xx_mdio_write; + am->mii_bus.reset = ag71xx_mdio_reset; + am->mii_bus.irq = am->mii_irq; +#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26)) + am->mii_bus.id = 0; +#else + snprintf(am->mii_bus.id, MII_BUS_ID_SIZE, "%x", 0); +#endif + am->mii_bus.priv = am; + am->mii_bus.dev = &pdev->dev; + + pdata = pdev->dev.platform_data; + if (pdata) + am->mii_bus.phy_mask = pdata->phy_mask; + + for (i = 0; i < PHY_MAX_ADDR; i++) + am->mii_irq[i] = PHY_POLL; + + err = mdiobus_register(&am->mii_bus); + if (err) + goto err_iounmap; + + ag71xx_mdio_dump_regs(am); + + platform_set_drvdata(pdev, am); + ag71xx_mdio_bus = am; + return 0; + +err_iounmap: + iounmap(am->mdio_base); +err_free_mdio: + kfree(am); +err_out: + return err; +} + +static int __exit ag71xx_mdio_remove(struct platform_device *pdev) +{ + struct ag71xx_mdio *am = platform_get_drvdata(pdev); + + if (am) { + ag71xx_mdio_bus = NULL; + mdiobus_unregister(&am->mii_bus); + iounmap(am->mdio_base); + kfree(am); + platform_set_drvdata(pdev, NULL); + } + + return 0; +} + +static struct platform_driver ag71xx_mdio_driver = { + .probe = ag71xx_mdio_probe, + .remove = __exit_p(ag71xx_mdio_remove), + .driver = { + .name = "ag71xx-mdio", + } +}; + +int ag71xx_mdio_driver_init(void) +{ + return platform_driver_register(&ag71xx_mdio_driver); +} + +void ag71xx_mdio_driver_exit(void) +{ + platform_driver_unregister(&ag71xx_mdio_driver); +} diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_mii.c b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_phy.c index 65940d201..b1838d578 100644 --- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_mii.c +++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_phy.c @@ -13,134 +13,23 @@ #include "ag71xx.h" -#define AG71XX_MII_RETRY 1000 -#define AG71XX_MII_DELAY 5 - -static inline void ag71xx_mii_ctrl_wr(struct ag71xx *ag, u32 value) -{ - __raw_writel(value, ag->mii_ctrl); -} - -static inline u32 ag71xx_mii_ctrl_rr(struct ag71xx *ag) -{ - return __raw_readl(ag->mii_ctrl); -} - -void ag71xx_mii_ctrl_set_if(struct ag71xx *ag, unsigned int mii_if) -{ - u32 t; - - t = ag71xx_mii_ctrl_rr(ag); - t &= ~(0x3); - t |= (mii_if & 0x3); - ag71xx_mii_ctrl_wr(ag, t); -} - -void ag71xx_mii_ctrl_set_speed(struct ag71xx *ag, unsigned int speed) -{ - u32 t; - - t = ag71xx_mii_ctrl_rr(ag); - t &= ~(0x3 << 4); - t |= (speed & 0x3) << 4; - ag71xx_mii_ctrl_wr(ag, t); -} - -static int ag71xx_mii_read(struct ag71xx *ag, int addr, int reg) -{ - int ret; - int i; - - ag71xx_wr(ag, AG71XX_REG_MII_CMD, MII_CMD_WRITE); - ag71xx_wr(ag, AG71XX_REG_MII_ADDR, - ((addr & 0xff) << MII_ADDR_S) | (reg & 0xff)); - ag71xx_wr(ag, AG71XX_REG_MII_CMD, MII_CMD_READ); - - i = AG71XX_MII_RETRY; - while (ag71xx_rr(ag, AG71XX_REG_MII_IND) & MII_IND_BUSY) { - if (i-- == 0) { - printk(KERN_ERR "%s: mii_read timed out\n", - ag->dev->name); - ret = 0xffff; - goto out; - } - udelay(AG71XX_MII_DELAY); - } - - ret = ag71xx_rr(ag, AG71XX_REG_MII_STATUS) & 0xffff; - ag71xx_wr(ag, AG71XX_REG_MII_CMD, MII_CMD_WRITE); - - DBG("mii_read: addr=%04x, reg=%04x, value=%04x\n", addr, reg, ret); - -out: - return ret; -} - -static void ag71xx_mii_write(struct ag71xx *ag, int addr, int reg, u16 val) -{ - int i; - - DBG("mii_write: addr=%04x, reg=%04x, value=%04x\n", addr, reg, val); - - ag71xx_wr(ag, AG71XX_REG_MII_ADDR, - ((addr & 0xff) << MII_ADDR_S) | (reg & 0xff)); - ag71xx_wr(ag, AG71XX_REG_MII_CTRL, val); - - i = AG71XX_MII_RETRY; - while (ag71xx_rr(ag, AG71XX_REG_MII_IND) & MII_IND_BUSY) { - if (i-- == 0) { - printk(KERN_ERR "%s: mii_write timed out\n", - ag->dev->name); - break; - } - udelay(AG71XX_MII_DELAY); - } -} - -int ag71xx_mii_peek(struct ag71xx *ag) -{ - int cnt; - int i; - - cnt = 0; - for (i = 0; i < PHY_MAX_ADDR; i++) { - u16 bmsr, id1, id2, bmcr, advert, lpa; - - bmsr = ag71xx_mii_read(ag, i, MII_BMSR); - bmcr = ag71xx_mii_read(ag, i, MII_BMCR); - id1 = ag71xx_mii_read(ag, i, MII_PHYSID1); - id2 = ag71xx_mii_read(ag, i, MII_PHYSID2); - advert = ag71xx_mii_read(ag, i, MII_ADVERTISE); - lpa = ag71xx_mii_read(ag, i, MII_LPA); - DBG("%s: phy%02d bmsr=%04x, bmcr=%04x, " - "id=%04x.%04x, advertise=%04x, lpa=%04x\n", - ag->dev->name, i, - bmsr, bmcr, id1, id2, advert, lpa); - - if ((bmsr | bmcr | id1 | id2 | advert | lpa) != 0) - cnt++; - } - - return cnt; -} - #define PLL_SEC_CONFIG 0x18050004 #define PLL_ETH0_INT_CLOCK 0x18050010 #define PLL_ETH1_INT_CLOCK 0x18050014 #define PLL_ETH_EXT_CLOCK 0x18050018 -#define ag7100_pll_shift(_ag) (((_ag)->pdev->id) ? 19 : 17) -#define ag7100_pll_offset(_ag) (((_ag)->pdev->id) ? PLL_ETH1_INT_CLOCK \ +#define ag71xx_pll_shift(_ag) (((_ag)->pdev->id) ? 19 : 17) +#define ag71xx_pll_offset(_ag) (((_ag)->pdev->id) ? PLL_ETH1_INT_CLOCK \ : PLL_ETH0_INT_CLOCK) static void ag71xx_set_pll(struct ag71xx *ag, u32 pll_val) { - void __iomem *pll_reg = ioremap_nocache(ag7100_pll_offset(ag), 4); + void __iomem *pll_reg = ioremap_nocache(ag71xx_pll_offset(ag), 4); void __iomem *pll_cfg = ioremap_nocache(PLL_SEC_CONFIG, 4); u32 s; u32 t; - s = ag7100_pll_shift(ag); + s = ag71xx_pll_shift(ag); t = __raw_readl(pll_cfg); t &= ~(3 << s); @@ -188,7 +77,7 @@ static unsigned char *ag71xx_speed_str(struct ag71xx *ag) #define PLL_VAL_10 0x09991999 #endif -void ag71xx_link_update(struct ag71xx *ag) +static void ag71xx_phy_link_update(struct ag71xx *ag) { u32 cfg2; u32 ifctl; @@ -264,7 +153,7 @@ void ag71xx_link_update(struct ag71xx *ag) ag71xx_mii_ctrl_rr(ag)); } -static void ag71xx_link_adjust(struct net_device *dev) +static void ag71xx_phy_link_adjust(struct net_device *dev) { struct ag71xx *ag = netdev_priv(dev); struct phy_device *phydev = ag->phy_dev; @@ -292,33 +181,36 @@ static void ag71xx_link_adjust(struct net_device *dev) ag->speed = phydev->speed; if (status_change) - ag71xx_link_update(ag); + ag71xx_phy_link_update(ag); spin_unlock_irqrestore(&ag->lock, flags); } -static int ag71xx_mdio_read(struct mii_bus *bus, int addr, int reg) +void ag71xx_phy_start(struct ag71xx *ag) { - struct ag71xx *ag = bus->priv; - - return ag71xx_mii_read(ag, addr, reg); -} - -static int ag71xx_mdio_write(struct mii_bus *bus, int addr, int reg, u16 val) -{ - struct ag71xx *ag = bus->priv; - - ag71xx_mii_write(ag, addr, reg, val); - return 0; + if (ag->phy_dev) { + phy_start(ag->phy_dev); + } else { + ag->duplex = DUPLEX_FULL; + ag->speed = SPEED_100; + ag->link = 1; + ag71xx_phy_link_update(ag); + } } -static int ag71xx_mdio_reset(struct mii_bus *bus) +void ag71xx_phy_stop(struct ag71xx *ag) { - /* TODO */ - return 0; + if (ag->phy_dev) { + phy_stop(ag->phy_dev); + } else { + ag->duplex = -1; + ag->link = 0; + ag->speed = 0; + ag71xx_phy_link_update(ag); + } } -static int ag71xx_mdio_probe(struct ag71xx *ag) +int ag71xx_phy_connect(struct ag71xx *ag) { struct net_device *dev = ag->dev; struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); @@ -326,22 +218,25 @@ static int ag71xx_mdio_probe(struct ag71xx *ag) int phy_count = 0; int phy_addr; - for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) { - if (!(pdata->phy_mask & (1 << phy_addr))) - continue; + if (ag->mii_bus) { + /* TODO: use mutex of the mdio bus */ + for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) { + if (!(pdata->phy_mask & (1 << phy_addr))) + continue; - if (ag->mii_bus.phy_map[phy_addr] == NULL) - continue; + if (ag->mii_bus->phy_map[phy_addr] == NULL) + continue; - DBG("%s: PHY found at %s, uid=%08x\n", - dev->name, - ag->mii_bus.phy_map[phy_addr]->dev.bus_id, - ag->mii_bus.phy_map[phy_addr]->phy_id); + DBG("%s: PHY found at %s, uid=%08x\n", + dev->name, + ag->mii_bus->phy_map[phy_addr]->dev.bus_id, + ag->mii_bus->phy_map[phy_addr]->phy_id); - if (phydev == NULL) - phydev = ag->mii_bus.phy_map[phy_addr]; + if (phydev == NULL) + phydev = ag->mii_bus->phy_map[phy_addr]; - phy_count++; + phy_count++; + } } switch (phy_count) { @@ -350,7 +245,7 @@ static int ag71xx_mdio_probe(struct ag71xx *ag) return -ENODEV; case 1: ag->phy_dev = phy_connect(dev, phydev->dev.bus_id, - &ag71xx_link_adjust, 0, pdata->phy_if_mode); + &ag71xx_phy_link_adjust, 0, pdata->phy_if_mode); if (IS_ERR(ag->phy_dev)) { printk(KERN_ERR "%s: could not connect to PHY at %s\n", @@ -388,49 +283,8 @@ static int ag71xx_mdio_probe(struct ag71xx *ag) return 0; } -int ag71xx_mdio_init(struct ag71xx *ag, int id) -{ - int err; - int i; - - ag->mii_bus.name = "ag71xx_mii"; - ag->mii_bus.read = ag71xx_mdio_read; - ag->mii_bus.write = ag71xx_mdio_write; - ag->mii_bus.reset = ag71xx_mdio_reset; - ag->mii_bus.id = id; - ag->mii_bus.priv = ag; - ag->mii_bus.dev = &ag->dev->dev; - - ag->mii_bus.irq = kmalloc(sizeof(*ag->mii_bus.irq) * PHY_MAX_ADDR, - GFP_KERNEL); - if (!ag->mii_bus.irq) { - err = -ENOMEM; - goto err_out; - } - - for (i = 0; i < PHY_MAX_ADDR; i++) - ag->mii_bus.irq[i] = PHY_POLL; - - err = mdiobus_register(&ag->mii_bus); - if (err) - goto err_free_irqs; - - err = ag71xx_mdio_probe(ag); - if (err) - goto err_unregister_bus; - - return 0; - -err_unregister_bus: - mdiobus_unregister(&ag->mii_bus); -err_free_irqs: - kfree(ag->mii_bus.irq); -err_out: - return err; -} - -void ag71xx_mdio_cleanup(struct ag71xx *ag) +void ag71xx_phy_disconnect(struct ag71xx *ag) { - mdiobus_unregister(&ag->mii_bus); - kfree(ag->mii_bus.irq); + if (ag->phy_dev) + phy_disconnect(ag->phy_dev); } |