diff options
Diffstat (limited to 'drivers/net/ethernet/ti')
| -rw-r--r-- | drivers/net/ethernet/ti/Kconfig | 3 | ||||
| -rw-r--r-- | drivers/net/ethernet/ti/cpmac.c | 70 | ||||
| -rw-r--r-- | drivers/net/ethernet/ti/cpsw.c | 97 | ||||
| -rw-r--r-- | drivers/net/ethernet/ti/cpsw.h | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/ti/davinci_cpdma.c | 258 | ||||
| -rw-r--r-- | drivers/net/ethernet/ti/davinci_cpdma.h | 3 | ||||
| -rw-r--r-- | drivers/net/ethernet/ti/davinci_emac.c | 188 | ||||
| -rw-r--r-- | drivers/net/ethernet/ti/davinci_mdio.c | 169 | ||||
| -rw-r--r-- | drivers/net/ethernet/ti/tlan.c | 1 |
9 files changed, 294 insertions, 496 deletions
diff --git a/drivers/net/ethernet/ti/Kconfig b/drivers/net/ethernet/ti/Kconfig index e7f0b7d95b65..9904d740d528 100644 --- a/drivers/net/ethernet/ti/Kconfig +++ b/drivers/net/ethernet/ti/Kconfig @@ -48,8 +48,7 @@ config TI_DAVINCI_CPDMA will be called davinci_cpdma. This is recommended. config TI_CPSW_PHY_SEL - bool "TI CPSW Switch Phy sel Support" - depends on TI_CPSW + bool ---help--- This driver supports configuring of the phy mode connected to the CPSW. diff --git a/drivers/net/ethernet/ti/cpmac.c b/drivers/net/ethernet/ti/cpmac.c index 7eef45e6d70a..d300d536d06f 100644 --- a/drivers/net/ethernet/ti/cpmac.c +++ b/drivers/net/ethernet/ti/cpmac.c @@ -205,7 +205,6 @@ struct cpmac_priv { dma_addr_t dma_ring; void __iomem *regs; struct mii_bus *mii_bus; - struct phy_device *phy; char phy_name[MII_BUS_ID_SIZE + 3]; int oldlink, oldspeed, oldduplex; u32 msg_enable; @@ -830,37 +829,12 @@ static void cpmac_tx_timeout(struct net_device *dev) static int cpmac_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) { - struct cpmac_priv *priv = netdev_priv(dev); - if (!(netif_running(dev))) return -EINVAL; - if (!priv->phy) + if (!dev->phydev) return -EINVAL; - return phy_mii_ioctl(priv->phy, ifr, cmd); -} - -static int cpmac_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) -{ - struct cpmac_priv *priv = netdev_priv(dev); - - if (priv->phy) - return phy_ethtool_gset(priv->phy, cmd); - - return -EINVAL; -} - -static int cpmac_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) -{ - struct cpmac_priv *priv = netdev_priv(dev); - - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - - if (priv->phy) - return phy_ethtool_sset(priv->phy, cmd); - - return -EINVAL; + return phy_mii_ioctl(dev->phydev, ifr, cmd); } static void cpmac_get_ringparam(struct net_device *dev, @@ -900,12 +874,12 @@ static void cpmac_get_drvinfo(struct net_device *dev, } static const struct ethtool_ops cpmac_ethtool_ops = { - .get_settings = cpmac_get_settings, - .set_settings = cpmac_set_settings, .get_drvinfo = cpmac_get_drvinfo, .get_link = ethtool_op_get_link, .get_ringparam = cpmac_get_ringparam, .set_ringparam = cpmac_set_ringparam, + .get_link_ksettings = phy_ethtool_get_link_ksettings, + .set_link_ksettings = phy_ethtool_set_link_ksettings, }; static void cpmac_adjust_link(struct net_device *dev) @@ -914,16 +888,16 @@ static void cpmac_adjust_link(struct net_device *dev) int new_state = 0; spin_lock(&priv->lock); - if (priv->phy->link) { + if (dev->phydev->link) { netif_tx_start_all_queues(dev); - if (priv->phy->duplex != priv->oldduplex) { + if (dev->phydev->duplex != priv->oldduplex) { new_state = 1; - priv->oldduplex = priv->phy->duplex; + priv->oldduplex = dev->phydev->duplex; } - if (priv->phy->speed != priv->oldspeed) { + if (dev->phydev->speed != priv->oldspeed) { new_state = 1; - priv->oldspeed = priv->phy->speed; + priv->oldspeed = dev->phydev->speed; } if (!priv->oldlink) { @@ -938,7 +912,7 @@ static void cpmac_adjust_link(struct net_device *dev) } if (new_state && netif_msg_link(priv) && net_ratelimit()) - phy_print_status(priv->phy); + phy_print_status(dev->phydev); spin_unlock(&priv->lock); } @@ -1016,8 +990,8 @@ static int cpmac_open(struct net_device *dev) cpmac_hw_start(dev); napi_enable(&priv->napi); - priv->phy->state = PHY_CHANGELINK; - phy_start(priv->phy); + dev->phydev->state = PHY_CHANGELINK; + phy_start(dev->phydev); return 0; @@ -1032,8 +1006,10 @@ fail_desc: kfree_skb(priv->rx_head[i].skb); } } + dma_free_coherent(&dev->dev, sizeof(struct cpmac_desc) * size, + priv->desc_ring, priv->dma_ring); + fail_alloc: - kfree(priv->desc_ring); iounmap(priv->regs); fail_remap: @@ -1053,7 +1029,7 @@ static int cpmac_stop(struct net_device *dev) cancel_work_sync(&priv->reset_work); napi_disable(&priv->napi); - phy_stop(priv->phy); + phy_stop(dev->phydev); cpmac_hw_stop(dev); @@ -1106,6 +1082,7 @@ static int cpmac_probe(struct platform_device *pdev) struct cpmac_priv *priv; struct net_device *dev; struct plat_cpmac_data *pdata; + struct phy_device *phydev = NULL; pdata = dev_get_platdata(&pdev->dev); @@ -1142,7 +1119,7 @@ static int cpmac_probe(struct platform_device *pdev) mem = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs"); if (!mem) { rc = -ENODEV; - goto out; + goto fail; } dev->irq = platform_get_irq_byname(pdev, "irq"); @@ -1162,15 +1139,15 @@ static int cpmac_probe(struct platform_device *pdev) snprintf(priv->phy_name, MII_BUS_ID_SIZE, PHY_ID_FMT, mdio_bus_id, phy_id); - priv->phy = phy_connect(dev, priv->phy_name, cpmac_adjust_link, - PHY_INTERFACE_MODE_MII); + phydev = phy_connect(dev, priv->phy_name, cpmac_adjust_link, + PHY_INTERFACE_MODE_MII); - if (IS_ERR(priv->phy)) { + if (IS_ERR(phydev)) { if (netif_msg_drv(priv)) dev_err(&pdev->dev, "Could not attach to PHY\n"); - rc = PTR_ERR(priv->phy); - goto out; + rc = PTR_ERR(phydev); + goto fail; } rc = register_netdev(dev); @@ -1189,7 +1166,6 @@ static int cpmac_probe(struct platform_device *pdev) fail: free_netdev(dev); -out: return rc; } diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index 53190894f17a..1a93a1f28433 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -364,7 +364,6 @@ static inline void slave_write(struct cpsw_slave *slave, u32 val, u32 offset) } struct cpsw_priv { - spinlock_t lock; struct platform_device *pdev; struct net_device *ndev; struct napi_struct napi_rx; @@ -1244,6 +1243,7 @@ static void cpsw_slave_stop(struct cpsw_slave *slave, struct cpsw_priv *priv) slave->phy = NULL; cpsw_ale_control_set(priv->ale, slave_port, ALE_PORT_STATE, ALE_PORT_STATE_DISABLE); + soft_reset_slave(slave); } static int cpsw_ndo_open(struct net_device *ndev) @@ -1252,7 +1252,11 @@ static int cpsw_ndo_open(struct net_device *ndev) int i, ret; u32 reg; - pm_runtime_get_sync(&priv->pdev->dev); + ret = pm_runtime_get_sync(&priv->pdev->dev); + if (ret < 0) { + pm_runtime_put_noidle(&priv->pdev->dev); + return ret; + } if (!cpsw_common_res_usage_state(priv)) cpsw_intr_disable(priv); @@ -1278,6 +1282,7 @@ static int cpsw_ndo_open(struct net_device *ndev) if (!cpsw_common_res_usage_state(priv)) { struct cpsw_priv *priv_sl0 = cpsw_get_slave_priv(priv, 0); + int buf_num; /* setup tx dma to fixed prio and zero offset */ cpdma_control_set(priv->dma, CPDMA_TX_PRIO_FIXED, 1); @@ -1305,10 +1310,8 @@ static int cpsw_ndo_open(struct net_device *ndev) enable_irq(priv->irqs_table[0]); } - if (WARN_ON(!priv->data.rx_descs)) - priv->data.rx_descs = 128; - - for (i = 0; i < priv->data.rx_descs; i++) { + buf_num = cpdma_chan_get_rx_buf_num(priv->dma); + for (i = 0; i < buf_num; i++) { struct sk_buff *skb; ret = -ENOMEM; @@ -1611,10 +1614,17 @@ static int cpsw_ndo_set_mac_address(struct net_device *ndev, void *p) struct sockaddr *addr = (struct sockaddr *)p; int flags = 0; u16 vid = 0; + int ret; if (!is_valid_ether_addr(addr->sa_data)) return -EADDRNOTAVAIL; + ret = pm_runtime_get_sync(&priv->pdev->dev); + if (ret < 0) { + pm_runtime_put_noidle(&priv->pdev->dev); + return ret; + } + if (priv->data.dual_emac) { vid = priv->slaves[priv->emac_port].port_vlan; flags = ALE_VLAN; @@ -1629,6 +1639,8 @@ static int cpsw_ndo_set_mac_address(struct net_device *ndev, void *p) memcpy(ndev->dev_addr, priv->mac_addr, ETH_ALEN); for_each_slave(priv, cpsw_set_slave_mac, priv); + pm_runtime_put(&priv->pdev->dev); + return 0; } @@ -1693,10 +1705,17 @@ static int cpsw_ndo_vlan_rx_add_vid(struct net_device *ndev, __be16 proto, u16 vid) { struct cpsw_priv *priv = netdev_priv(ndev); + int ret; if (vid == priv->data.default_vlan) return 0; + ret = pm_runtime_get_sync(&priv->pdev->dev); + if (ret < 0) { + pm_runtime_put_noidle(&priv->pdev->dev); + return ret; + } + if (priv->data.dual_emac) { /* In dual EMAC, reserved VLAN id should not be used for * creating VLAN interfaces as this can break the dual @@ -1711,7 +1730,10 @@ static int cpsw_ndo_vlan_rx_add_vid(struct net_device *ndev, } dev_info(priv->dev, "Adding vlanid %d to vlan filter\n", vid); - return cpsw_add_vlan_ale_entry(priv, vid); + ret = cpsw_add_vlan_ale_entry(priv, vid); + + pm_runtime_put(&priv->pdev->dev); + return ret; } static int cpsw_ndo_vlan_rx_kill_vid(struct net_device *ndev, @@ -1723,6 +1745,12 @@ static int cpsw_ndo_vlan_rx_kill_vid(struct net_device *ndev, if (vid == priv->data.default_vlan) return 0; + ret = pm_runtime_get_sync(&priv->pdev->dev); + if (ret < 0) { + pm_runtime_put_noidle(&priv->pdev->dev); + return ret; + } + if (priv->data.dual_emac) { int i; @@ -1742,8 +1770,10 @@ static int cpsw_ndo_vlan_rx_kill_vid(struct net_device *ndev, if (ret != 0) return ret; - return cpsw_ale_del_mcast(priv->ale, priv->ndev->broadcast, - 0, ALE_VLAN, vid); + ret = cpsw_ale_del_mcast(priv->ale, priv->ndev->broadcast, + 0, ALE_VLAN, vid); + pm_runtime_put(&priv->pdev->dev); + return ret; } static const struct net_device_ops cpsw_netdev_ops = { @@ -1902,10 +1932,33 @@ static int cpsw_set_pauseparam(struct net_device *ndev, priv->tx_pause = pause->tx_pause ? true : false; for_each_slave(priv, _cpsw_adjust_link, priv, &link); - return 0; } +static int cpsw_ethtool_op_begin(struct net_device *ndev) +{ + struct cpsw_priv *priv = netdev_priv(ndev); + int ret; + + ret = pm_runtime_get_sync(&priv->pdev->dev); + if (ret < 0) { + cpsw_err(priv, drv, "ethtool begin failed %d\n", ret); + pm_runtime_put_noidle(&priv->pdev->dev); + } + + return ret; +} + +static void cpsw_ethtool_op_complete(struct net_device *ndev) +{ + struct cpsw_priv *priv = netdev_priv(ndev); + int ret; + + ret = pm_runtime_put(&priv->pdev->dev); + if (ret < 0) + cpsw_err(priv, drv, "ethtool complete failed %d\n", ret); +} + static const struct ethtool_ops cpsw_ethtool_ops = { .get_drvinfo = cpsw_get_drvinfo, .get_msglevel = cpsw_get_msglevel, @@ -1925,6 +1978,8 @@ static const struct ethtool_ops cpsw_ethtool_ops = { .set_wol = cpsw_set_wol, .get_regs_len = cpsw_get_regs_len, .get_regs = cpsw_get_regs, + .begin = cpsw_ethtool_op_begin, + .complete = cpsw_ethtool_op_complete, }; static void cpsw_slave_init(struct cpsw_slave *slave, struct cpsw_priv *priv, @@ -1999,12 +2054,6 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data, } data->bd_ram_size = prop; - if (of_property_read_u32(node, "rx_descs", &prop)) { - dev_err(&pdev->dev, "Missing rx_descs property in the DT.\n"); - return -EINVAL; - } - data->rx_descs = prop; - if (of_property_read_u32(node, "mac_control", &prop)) { dev_err(&pdev->dev, "Missing mac_control property in the DT.\n"); return -EINVAL; @@ -2022,7 +2071,7 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data, if (ret) dev_warn(&pdev->dev, "Doesn't have any child node\n"); - for_each_child_of_node(node, slave_node) { + for_each_available_child_of_node(node, slave_node) { struct cpsw_slave_data *slave_data = data->slave_data + i; const void *mac_addr = NULL; int lenp; @@ -2124,7 +2173,6 @@ static int cpsw_probe_dual_emac(struct platform_device *pdev, } priv_sl2 = netdev_priv(ndev); - spin_lock_init(&priv_sl2->lock); priv_sl2->data = *data; priv_sl2->pdev = pdev; priv_sl2->ndev = ndev; @@ -2243,7 +2291,6 @@ static int cpsw_probe(struct platform_device *pdev) platform_set_drvdata(pdev, ndev); priv = netdev_priv(ndev); - spin_lock_init(&priv->lock); priv->pdev = pdev; priv->ndev = ndev; priv->dev = &ndev->dev; @@ -2321,7 +2368,11 @@ static int cpsw_probe(struct platform_device *pdev) /* Need to enable clocks with runtime PM api to access module * registers */ - pm_runtime_get_sync(&pdev->dev); + ret = pm_runtime_get_sync(&pdev->dev); + if (ret < 0) { + pm_runtime_put_noidle(&pdev->dev); + goto clean_runtime_disable_ret; + } priv->version = readl(&priv->regs->id_ver); pm_runtime_put_sync(&pdev->dev); @@ -2554,16 +2605,12 @@ static int cpsw_suspend(struct device *dev) for (i = 0; i < priv->data.slaves; i++) { if (netif_running(priv->slaves[i].ndev)) cpsw_ndo_stop(priv->slaves[i].ndev); - soft_reset_slave(priv->slaves + i); } } else { if (netif_running(ndev)) cpsw_ndo_stop(ndev); - for_each_slave(priv, soft_reset_slave); } - pm_runtime_put_sync(&pdev->dev); - /* Select sleep pin state */ pinctrl_pm_select_sleep_state(&pdev->dev); @@ -2576,8 +2623,6 @@ static int cpsw_resume(struct device *dev) struct net_device *ndev = platform_get_drvdata(pdev); struct cpsw_priv *priv = netdev_priv(ndev); - pm_runtime_get_sync(&pdev->dev); - /* Select default pin state */ pinctrl_pm_select_default_state(&pdev->dev); diff --git a/drivers/net/ethernet/ti/cpsw.h b/drivers/net/ethernet/ti/cpsw.h index e50afd1b2eda..16b54c6f32c2 100644 --- a/drivers/net/ethernet/ti/cpsw.h +++ b/drivers/net/ethernet/ti/cpsw.h @@ -35,7 +35,6 @@ struct cpsw_platform_data { u32 cpts_clock_shift; /* convert input clock ticks to nanoseconds */ u32 ale_entries; /* ale table size */ u32 bd_ram_size; /*buffer descriptor ram size */ - u32 rx_descs; /* Number of Rx Descriptios */ u32 mac_control; /* Mac control register */ u16 default_vlan; /* Def VLAN for ALE lookup in VLAN aware mode*/ bool dual_emac; /* Enable Dual EMAC mode */ diff --git a/drivers/net/ethernet/ti/davinci_cpdma.c b/drivers/net/ethernet/ti/davinci_cpdma.c index 18bf3a8fdc50..73638f7a55d4 100644 --- a/drivers/net/ethernet/ti/davinci_cpdma.c +++ b/drivers/net/ethernet/ti/davinci_cpdma.c @@ -21,7 +21,7 @@ #include <linux/dma-mapping.h> #include <linux/io.h> #include <linux/delay.h> - +#include <linux/genalloc.h> #include "davinci_cpdma.h" /* DMA Registers */ @@ -87,9 +87,8 @@ struct cpdma_desc_pool { void *cpumap; /* dma_alloc map */ int desc_size, mem_size; int num_desc, used_desc; - unsigned long *bitmap; struct device *dev; - spinlock_t lock; + struct gen_pool *gen_pool; }; enum cpdma_state { @@ -98,8 +97,6 @@ enum cpdma_state { CPDMA_STATE_TEARDOWN, }; -static const char *cpdma_state_str[] = { "idle", "active", "teardown" }; - struct cpdma_ctlr { enum cpdma_state state; struct cpdma_params params; @@ -117,6 +114,7 @@ struct cpdma_chan { int chan_num; spinlock_t lock; int count; + u32 desc_num; u32 mask; cpdma_handler_fn handler; enum dma_data_direction dir; @@ -145,6 +143,19 @@ struct cpdma_chan { (directed << CPDMA_TO_PORT_SHIFT)); \ } while (0) +static void cpdma_desc_pool_destroy(struct cpdma_desc_pool *pool) +{ + if (!pool) + return; + + WARN_ON(pool->used_desc); + if (pool->cpumap) + dma_free_coherent(pool->dev, pool->mem_size, pool->cpumap, + pool->phys); + else + iounmap(pool->iomap); +} + /* * Utility constructs for a cpdma descriptor pool. Some devices (e.g. davinci * emac) have dedicated on-chip memory for these descriptors. Some other @@ -155,24 +166,25 @@ static struct cpdma_desc_pool * cpdma_desc_pool_create(struct device *dev, u32 phys, dma_addr_t hw_addr, int size, int align) { - int bitmap_size; struct cpdma_desc_pool *pool; + int ret; pool = devm_kzalloc(dev, sizeof(*pool), GFP_KERNEL); if (!pool) - goto fail; - - spin_lock_init(&pool->lock); + goto gen_pool_create_fail; pool->dev = dev; pool->mem_size = size; pool->desc_size = ALIGN(sizeof(struct cpdma_desc), align); pool->num_desc = size / pool->desc_size; - bitmap_size = (pool->num_desc / BITS_PER_LONG) * sizeof(long); - pool->bitmap = devm_kzalloc(dev, bitmap_size, GFP_KERNEL); - if (!pool->bitmap) - goto fail; + pool->gen_pool = devm_gen_pool_create(dev, ilog2(pool->desc_size), -1, + "cpdma"); + if (IS_ERR(pool->gen_pool)) { + dev_err(dev, "pool create failed %ld\n", + PTR_ERR(pool->gen_pool)); + goto gen_pool_create_fail; + } if (phys) { pool->phys = phys; @@ -185,24 +197,22 @@ cpdma_desc_pool_create(struct device *dev, u32 phys, dma_addr_t hw_addr, pool->phys = pool->hw_addr; /* assumes no IOMMU, don't use this value */ } - if (pool->iomap) - return pool; -fail: - return NULL; -} - -static void cpdma_desc_pool_destroy(struct cpdma_desc_pool *pool) -{ - if (!pool) - return; + if (!pool->iomap) + goto gen_pool_create_fail; - WARN_ON(pool->used_desc); - if (pool->cpumap) { - dma_free_coherent(pool->dev, pool->mem_size, pool->cpumap, - pool->phys); - } else { - iounmap(pool->iomap); + ret = gen_pool_add_virt(pool->gen_pool, (unsigned long)pool->iomap, + pool->phys, pool->mem_size, -1); + if (ret < 0) { + dev_err(dev, "pool add failed %d\n", ret); + goto gen_pool_add_virt_fail; } + + return pool; + +gen_pool_add_virt_fail: + cpdma_desc_pool_destroy(pool); +gen_pool_create_fail: + return NULL; } static inline dma_addr_t desc_phys(struct cpdma_desc_pool *pool, @@ -220,47 +230,23 @@ desc_from_phys(struct cpdma_desc_pool *pool, dma_addr_t dma) } static struct cpdma_desc __iomem * -cpdma_desc_alloc(struct cpdma_desc_pool *pool, int num_desc, bool is_rx) +cpdma_desc_alloc(struct cpdma_desc_pool *pool) { - unsigned long flags; - int index; - int desc_start; - int desc_end; struct cpdma_desc __iomem *desc = NULL; - spin_lock_irqsave(&pool->lock, flags); - - if (is_rx) { - desc_start = 0; - desc_end = pool->num_desc/2; - } else { - desc_start = pool->num_desc/2; - desc_end = pool->num_desc; - } - - index = bitmap_find_next_zero_area(pool->bitmap, - desc_end, desc_start, num_desc, 0); - if (index < desc_end) { - bitmap_set(pool->bitmap, index, num_desc); - desc = pool->iomap + pool->desc_size * index; + desc = (struct cpdma_desc __iomem *)gen_pool_alloc(pool->gen_pool, + pool->desc_size); + if (desc) pool->used_desc++; - } - spin_unlock_irqrestore(&pool->lock, flags); return desc; } static void cpdma_desc_free(struct cpdma_desc_pool *pool, struct cpdma_desc __iomem *desc, int num_desc) { - unsigned long flags, index; - - index = ((unsigned long)desc - (unsigned long)pool->iomap) / - pool->desc_size; - spin_lock_irqsave(&pool->lock, flags); - bitmap_clear(pool->bitmap, index, num_desc); + gen_pool_free(pool->gen_pool, (unsigned long)desc, pool->desc_size); pool->used_desc--; - spin_unlock_irqrestore(&pool->lock, flags); } struct cpdma_ctlr *cpdma_ctlr_create(struct cpdma_params *params) @@ -369,77 +355,6 @@ int cpdma_ctlr_stop(struct cpdma_ctlr *ctlr) } EXPORT_SYMBOL_GPL(cpdma_ctlr_stop); -int cpdma_ctlr_dump(struct cpdma_ctlr *ctlr) -{ - struct device *dev = ctlr->dev; - unsigned long flags; - int i; - - spin_lock_irqsave(&ctlr->lock, flags); - - dev_info(dev, "CPDMA: state: %s", cpdma_state_str[ctlr->state]); - - dev_info(dev, "CPDMA: txidver: %x", - dma_reg_read(ctlr, CPDMA_TXIDVER)); - dev_info(dev, "CPDMA: txcontrol: %x", - dma_reg_read(ctlr, CPDMA_TXCONTROL)); - dev_info(dev, "CPDMA: txteardown: %x", - dma_reg_read(ctlr, CPDMA_TXTEARDOWN)); - dev_info(dev, "CPDMA: rxidver: %x", - dma_reg_read(ctlr, CPDMA_RXIDVER)); - dev_info(dev, "CPDMA: rxcontrol: %x", - dma_reg_read(ctlr, CPDMA_RXCONTROL)); - dev_info(dev, "CPDMA: softreset: %x", - dma_reg_read(ctlr, CPDMA_SOFTRESET)); - dev_info(dev, "CPDMA: rxteardown: %x", - dma_reg_read(ctlr, CPDMA_RXTEARDOWN)); - dev_info(dev, "CPDMA: txintstatraw: %x", - dma_reg_read(ctlr, CPDMA_TXINTSTATRAW)); - dev_info(dev, "CPDMA: txintstatmasked: %x", - dma_reg_read(ctlr, CPDMA_TXINTSTATMASKED)); - dev_info(dev, "CPDMA: txintmaskset: %x", - dma_reg_read(ctlr, CPDMA_TXINTMASKSET)); - dev_info(dev, "CPDMA: txintmaskclear: %x", - dma_reg_read(ctlr, CPDMA_TXINTMASKCLEAR)); - dev_info(dev, "CPDMA: macinvector: %x", - dma_reg_read(ctlr, CPDMA_MACINVECTOR)); - dev_info(dev, "CPDMA: maceoivector: %x", - dma_reg_read(ctlr, CPDMA_MACEOIVECTOR)); - dev_info(dev, "CPDMA: rxintstatraw: %x", - dma_reg_read(ctlr, CPDMA_RXINTSTATRAW)); - dev_info(dev, "CPDMA: rxintstatmasked: %x", - dma_reg_read(ctlr, CPDMA_RXINTSTATMASKED)); - dev_info(dev, "CPDMA: rxintmaskset: %x", - dma_reg_read(ctlr, CPDMA_RXINTMASKSET)); - dev_info(dev, "CPDMA: rxintmaskclear: %x", - dma_reg_read(ctlr, CPDMA_RXINTMASKCLEAR)); - dev_info(dev, "CPDMA: dmaintstatraw: %x", - dma_reg_read(ctlr, CPDMA_DMAINTSTATRAW)); - dev_info(dev, "CPDMA: dmaintstatmasked: %x", - dma_reg_read(ctlr, CPDMA_DMAINTSTATMASKED)); - dev_info(dev, "CPDMA: dmaintmaskset: %x", - dma_reg_read(ctlr, CPDMA_DMAINTMASKSET)); - dev_info(dev, "CPDMA: dmaintmaskclear: %x", - dma_reg_read(ctlr, CPDMA_DMAINTMASKCLEAR)); - - if (!ctlr->params.has_ext_regs) { - dev_info(dev, "CPDMA: dmacontrol: %x", - dma_reg_read(ctlr, CPDMA_DMACONTROL)); - dev_info(dev, "CPDMA: dmastatus: %x", - dma_reg_read(ctlr, CPDMA_DMASTATUS)); - dev_info(dev, "CPDMA: rxbuffofs: %x", - dma_reg_read(ctlr, CPDMA_RXBUFFOFS)); - } - - for (i = 0; i < ARRAY_SIZE(ctlr->channels); i++) - if (ctlr->channels[i]) - cpdma_chan_dump(ctlr->channels[i]); - - spin_unlock_irqrestore(&ctlr->lock, flags); - return 0; -} -EXPORT_SYMBOL_GPL(cpdma_ctlr_dump); - int cpdma_ctlr_destroy(struct cpdma_ctlr *ctlr) { unsigned long flags; @@ -516,6 +431,7 @@ struct cpdma_chan *cpdma_chan_create(struct cpdma_ctlr *ctlr, int chan_num, chan->state = CPDMA_STATE_IDLE; chan->chan_num = chan_num; chan->handler = handler; + chan->desc_num = ctlr->pool->num_desc / 2; if (is_rx_chan(chan)) { chan->hdp = ctlr->params.rxhdp + offset; @@ -543,6 +459,12 @@ struct cpdma_chan *cpdma_chan_create(struct cpdma_ctlr *ctlr, int chan_num, } EXPORT_SYMBOL_GPL(cpdma_chan_create); +int cpdma_chan_get_rx_buf_num(struct cpdma_ctlr *ctlr) +{ + return ctlr->pool->num_desc / 2; +} +EXPORT_SYMBOL_GPL(cpdma_chan_get_rx_buf_num); + int cpdma_chan_destroy(struct cpdma_chan *chan) { struct cpdma_ctlr *ctlr; @@ -574,54 +496,6 @@ int cpdma_chan_get_stats(struct cpdma_chan *chan, } EXPORT_SYMBOL_GPL(cpdma_chan_get_stats); -int cpdma_chan_dump(struct cpdma_chan *chan) -{ - unsigned long flags; - struct device *dev = chan->ctlr->dev; - - spin_lock_irqsave(&chan->lock, flags); - - dev_info(dev, "channel %d (%s %d) state %s", - chan->chan_num, is_rx_chan(chan) ? "rx" : "tx", - chan_linear(chan), cpdma_state_str[chan->state]); - dev_info(dev, "\thdp: %x\n", chan_read(chan, hdp)); - dev_info(dev, "\tcp: %x\n", chan_read(chan, cp)); - if (chan->rxfree) { - dev_info(dev, "\trxfree: %x\n", - chan_read(chan, rxfree)); - } - - dev_info(dev, "\tstats head_enqueue: %d\n", - chan->stats.head_enqueue); - dev_info(dev, "\tstats tail_enqueue: %d\n", - chan->stats.tail_enqueue); - dev_info(dev, "\tstats pad_enqueue: %d\n", - chan->stats.pad_enqueue); - dev_info(dev, "\tstats misqueued: %d\n", - chan->stats.misqueued); - dev_info(dev, "\tstats desc_alloc_fail: %d\n", - chan->stats.desc_alloc_fail); - dev_info(dev, "\tstats pad_alloc_fail: %d\n", - chan->stats.pad_alloc_fail); - dev_info(dev, "\tstats runt_receive_buff: %d\n", - chan->stats.runt_receive_buff); - dev_info(dev, "\tstats runt_transmit_buff: %d\n", - chan->stats.runt_transmit_buff); - dev_info(dev, "\tstats empty_dequeue: %d\n", - chan->stats.empty_dequeue); - dev_info(dev, "\tstats busy_dequeue: %d\n", - chan->stats.busy_dequeue); - dev_info(dev, "\tstats good_dequeue: %d\n", - chan->stats.good_dequeue); - dev_info(dev, "\tstats requeue: %d\n", - chan->stats.requeue); - dev_info(dev, "\tstats teardown_dequeue: %d\n", - chan->stats.teardown_dequeue); - - spin_unlock_irqrestore(&chan->lock, flags); - return 0; -} - static void __cpdma_chan_submit(struct cpdma_chan *chan, struct cpdma_desc __iomem *desc) { @@ -675,7 +549,13 @@ int cpdma_chan_submit(struct cpdma_chan *chan, void *token, void *data, goto unlock_ret; } - desc = cpdma_desc_alloc(ctlr->pool, 1, is_rx_chan(chan)); + if (chan->count >= chan->desc_num) { + chan->stats.desc_alloc_fail++; + ret = -ENOMEM; + goto unlock_ret; + } + + desc = cpdma_desc_alloc(ctlr->pool); if (!desc) { chan->stats.desc_alloc_fail++; ret = -ENOMEM; @@ -721,24 +601,16 @@ EXPORT_SYMBOL_GPL(cpdma_chan_submit); bool cpdma_check_free_tx_desc(struct cpdma_chan *chan) { - unsigned long flags; - int index; - bool ret; struct cpdma_ctlr *ctlr = chan->ctlr; struct cpdma_desc_pool *pool = ctlr->pool; + bool free_tx_desc; + unsigned long flags; - spin_lock_irqsave(&pool->lock, flags); - - index = bitmap_find_next_zero_area(pool->bitmap, - pool->num_desc, pool->num_desc/2, 1, 0); - - if (index < pool->num_desc) - ret = true; - else - ret = false; - - spin_unlock_irqrestore(&pool->lock, flags); - return ret; + spin_lock_irqsave(&chan->lock, flags); + free_tx_desc = (chan->count < chan->desc_num) && + gen_pool_avail(pool->gen_pool); + spin_unlock_irqrestore(&chan->lock, flags); + return free_tx_desc; } EXPORT_SYMBOL_GPL(cpdma_check_free_tx_desc); diff --git a/drivers/net/ethernet/ti/davinci_cpdma.h b/drivers/net/ethernet/ti/davinci_cpdma.h index 86dee487f2f0..4b46cd6e9a3f 100644 --- a/drivers/net/ethernet/ti/davinci_cpdma.h +++ b/drivers/net/ethernet/ti/davinci_cpdma.h @@ -77,14 +77,13 @@ struct cpdma_ctlr *cpdma_ctlr_create(struct cpdma_params *params); int cpdma_ctlr_destroy(struct cpdma_ctlr *ctlr); int cpdma_ctlr_start(struct cpdma_ctlr *ctlr); int cpdma_ctlr_stop(struct cpdma_ctlr *ctlr); -int cpdma_ctlr_dump(struct cpdma_ctlr *ctlr); struct cpdma_chan *cpdma_chan_create(struct cpdma_ctlr *ctlr, int chan_num, cpdma_handler_fn handler); +int cpdma_chan_get_rx_buf_num(struct cpdma_ctlr *ctlr); int cpdma_chan_destroy(struct cpdma_chan *chan); int cpdma_chan_start(struct cpdma_chan *chan); int cpdma_chan_stop(struct cpdma_chan *chan); -int cpdma_chan_dump(struct cpdma_chan *chan); int cpdma_chan_get_stats(struct cpdma_chan *chan, struct cpdma_chan_stats *stats); diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c index f56d66e6ec15..6e305a82ed43 100644 --- a/drivers/net/ethernet/ti/davinci_emac.c +++ b/drivers/net/ethernet/ti/davinci_emac.c @@ -348,7 +348,6 @@ struct emac_priv { u32 rx_addr_type; const char *phy_id; struct device_node *phy_node; - struct phy_device *phydev; spinlock_t lock; /*platform specific members*/ void (*int_enable) (void); @@ -380,97 +379,6 @@ static char *emac_rxhost_errcodes[16] = { #define emac_ctrl_write(reg, val) iowrite32(val, (priv->ctrl_base + (reg))) /** - * emac_dump_regs - Dump important EMAC registers to debug terminal - * @priv: The DaVinci EMAC private adapter structure - * - * Executes ethtool set cmd & sets phy mode - * - */ -static void emac_dump_regs(struct emac_priv *priv) -{ - struct device *emac_dev = &priv->ndev->dev; - - /* Print important registers in EMAC */ - dev_info(emac_dev, "EMAC Basic registers\n"); - if (priv->version == EMAC_VERSION_1) { - dev_info(emac_dev, "EMAC: EWCTL: %08X, EWINTTCNT: %08X\n", - emac_ctrl_read(EMAC_CTRL_EWCTL), - emac_ctrl_read(EMAC_CTRL_EWINTTCNT)); - } - dev_info(emac_dev, "EMAC: EmuControl:%08X, FifoControl: %08X\n", - emac_read(EMAC_EMCONTROL), emac_read(EMAC_FIFOCONTROL)); - dev_info(emac_dev, "EMAC: MBPEnable:%08X, RXUnicastSet: %08X, "\ - "RXMaxLen=%08X\n", emac_read(EMAC_RXMBPENABLE), - emac_read(EMAC_RXUNICASTSET), emac_read(EMAC_RXMAXLEN)); - dev_info(emac_dev, "EMAC: MacControl:%08X, MacStatus: %08X, "\ - "MacConfig=%08X\n", emac_read(EMAC_MACCONTROL), - emac_read(EMAC_MACSTATUS), emac_read(EMAC_MACCONFIG)); - dev_info(emac_dev, "EMAC Statistics\n"); - dev_info(emac_dev, "EMAC: rx_good_frames:%d\n", - emac_read(EMAC_RXGOODFRAMES)); - dev_info(emac_dev, "EMAC: rx_broadcast_frames:%d\n", - emac_read(EMAC_RXBCASTFRAMES)); - dev_info(emac_dev, "EMAC: rx_multicast_frames:%d\n", - emac_read(EMAC_RXMCASTFRAMES)); - dev_info(emac_dev, "EMAC: rx_pause_frames:%d\n", - emac_read(EMAC_RXPAUSEFRAMES)); - dev_info(emac_dev, "EMAC: rx_crcerrors:%d\n", - emac_read(EMAC_RXCRCERRORS)); - dev_info(emac_dev, "EMAC: rx_align_code_errors:%d\n", - emac_read(EMAC_RXALIGNCODEERRORS)); - dev_info(emac_dev, "EMAC: rx_oversized_frames:%d\n", - emac_read(EMAC_RXOVERSIZED)); - dev_info(emac_dev, "EMAC: rx_jabber_frames:%d\n", - emac_read(EMAC_RXJABBER)); - dev_info(emac_dev, "EMAC: rx_undersized_frames:%d\n", - emac_read(EMAC_RXUNDERSIZED)); - dev_info(emac_dev, "EMAC: rx_fragments:%d\n", - emac_read(EMAC_RXFRAGMENTS)); - dev_info(emac_dev, "EMAC: rx_filtered_frames:%d\n", - emac_read(EMAC_RXFILTERED)); - dev_info(emac_dev, "EMAC: rx_qos_filtered_frames:%d\n", - emac_read(EMAC_RXQOSFILTERED)); - dev_info(emac_dev, "EMAC: rx_octets:%d\n", - emac_read(EMAC_RXOCTETS)); - dev_info(emac_dev, "EMAC: tx_goodframes:%d\n", - emac_read(EMAC_TXGOODFRAMES)); - dev_info(emac_dev, "EMAC: tx_bcastframes:%d\n", - emac_read(EMAC_TXBCASTFRAMES)); - dev_info(emac_dev, "EMAC: tx_mcastframes:%d\n", - emac_read(EMAC_TXMCASTFRAMES)); - dev_info(emac_dev, "EMAC: tx_pause_frames:%d\n", - emac_read(EMAC_TXPAUSEFRAMES)); - dev_info(emac_dev, "EMAC: tx_deferred_frames:%d\n", - emac_read(EMAC_TXDEFERRED)); - dev_info(emac_dev, "EMAC: tx_collision_frames:%d\n", - emac_read(EMAC_TXCOLLISION)); - dev_info(emac_dev, "EMAC: tx_single_coll_frames:%d\n", - emac_read(EMAC_TXSINGLECOLL)); - dev_info(emac_dev, "EMAC: tx_mult_coll_frames:%d\n", - emac_read(EMAC_TXMULTICOLL)); - dev_info(emac_dev, "EMAC: tx_excessive_collisions:%d\n", - emac_read(EMAC_TXEXCESSIVECOLL)); - dev_info(emac_dev, "EMAC: tx_late_collisions:%d\n", - emac_read(EMAC_TXLATECOLL)); - dev_info(emac_dev, "EMAC: tx_underrun:%d\n", - emac_read(EMAC_TXUNDERRUN)); - dev_info(emac_dev, "EMAC: tx_carrier_sense_errors:%d\n", - emac_read(EMAC_TXCARRIERSENSE)); - dev_info(emac_dev, "EMAC: tx_octets:%d\n", - emac_read(EMAC_TXOCTETS)); - dev_info(emac_dev, "EMAC: net_octets:%d\n", - emac_read(EMAC_NETOCTETS)); - dev_info(emac_dev, "EMAC: rx_sof_overruns:%d\n", - emac_read(EMAC_RXSOFOVERRUNS)); - dev_info(emac_dev, "EMAC: rx_mof_overruns:%d\n", - emac_read(EMAC_RXMOFOVERRUNS)); - dev_info(emac_dev, "EMAC: rx_dma_overruns:%d\n", - emac_read(EMAC_RXDMAOVERRUNS)); - - cpdma_ctlr_dump(priv->dma); -} - -/** * emac_get_drvinfo - Get EMAC driver information * @ndev: The DaVinci EMAC network adapter * @info: ethtool info structure containing name and version @@ -486,43 +394,6 @@ static void emac_get_drvinfo(struct net_device *ndev, } /** - * emac_get_settings - Get EMAC settings - * @ndev: The DaVinci EMAC network adapter - * @ecmd: ethtool command - * - * Executes ethool get command - * - */ -static int emac_get_settings(struct net_device *ndev, - struct ethtool_cmd *ecmd) -{ - struct emac_priv *priv = netdev_priv(ndev); - if (priv->phydev) - return phy_ethtool_gset(priv->phydev, ecmd); - else - return -EOPNOTSUPP; - -} - -/** - * emac_set_settings - Set EMAC settings - * @ndev: The DaVinci EMAC network adapter - * @ecmd: ethtool command - * - * Executes ethool set command - * - */ -static int emac_set_settings(struct net_device *ndev, struct ethtool_cmd *ecmd) -{ - struct emac_priv *priv = netdev_priv(ndev); - if (priv->phydev) - return phy_ethtool_sset(priv->phydev, ecmd); - else - return -EOPNOTSUPP; - -} - -/** * emac_get_coalesce - Get interrupt coalesce settings for this device * @ndev : The DaVinci EMAC network adapter * @coal : ethtool coalesce settings structure @@ -625,12 +496,12 @@ static int emac_set_coalesce(struct net_device *ndev, */ static const struct ethtool_ops ethtool_ops = { .get_drvinfo = emac_get_drvinfo, - .get_settings = emac_get_settings, - .set_settings = emac_set_settings, .get_link = ethtool_op_get_link, .get_coalesce = emac_get_coalesce, .set_coalesce = emac_set_coalesce, .get_ts_info = ethtool_op_get_ts_info, + .get_link_ksettings = phy_ethtool_get_link_ksettings, + .set_link_ksettings = phy_ethtool_set_link_ksettings, }; /** @@ -651,8 +522,8 @@ static void emac_update_phystatus(struct emac_priv *priv) mac_control = emac_read(EMAC_MACCONTROL); cur_duplex = (mac_control & EMAC_MACCONTROL_FULLDUPLEXEN) ? DUPLEX_FULL : DUPLEX_HALF; - if (priv->phydev) - new_duplex = priv->phydev->duplex; + if (ndev->phydev) + new_duplex = ndev->phydev->duplex; else new_duplex = DUPLEX_FULL; @@ -1134,8 +1005,6 @@ static void emac_dev_tx_timeout(struct net_device *ndev) if (netif_msg_tx_err(priv)) dev_err(emac_dev, "DaVinci EMAC: xmit timeout, restarting TX"); - emac_dump_regs(priv); - ndev->stats.tx_errors++; emac_int_disable(priv); cpdma_chan_stop(priv->txchan); @@ -1454,7 +1323,7 @@ static void emac_poll_controller(struct net_device *ndev) static void emac_adjust_link(struct net_device *ndev) { struct emac_priv *priv = netdev_priv(ndev); - struct phy_device *phydev = priv->phydev; + struct phy_device *phydev = ndev->phydev; unsigned long flags; int new_state = 0; @@ -1483,7 +1352,7 @@ static void emac_adjust_link(struct net_device *ndev) } if (new_state) { emac_update_phystatus(priv); - phy_print_status(priv->phydev); + phy_print_status(ndev->phydev); } spin_unlock_irqrestore(&priv->lock, flags); @@ -1505,15 +1374,13 @@ static void emac_adjust_link(struct net_device *ndev) */ static int emac_devioctl(struct net_device *ndev, struct ifreq *ifrq, int cmd) { - struct emac_priv *priv = netdev_priv(ndev); - if (!(netif_running(ndev))) return -EINVAL; /* TODO: Add phy read and write and private statistics get feature */ - if (priv->phydev) - return phy_mii_ioctl(priv->phydev, ifrq, cmd); + if (ndev->phydev) + return phy_mii_ioctl(ndev->phydev, ifrq, cmd); else return -EOPNOTSUPP; } @@ -1542,6 +1409,7 @@ static int emac_dev_open(struct net_device *ndev) int res_num = 0, irq_num = 0; int i = 0; struct emac_priv *priv = netdev_priv(ndev); + struct phy_device *phydev = NULL; ret = pm_runtime_get_sync(&priv->pdev->dev); if (ret < 0) { @@ -1607,12 +1475,10 @@ static int emac_dev_open(struct net_device *ndev) cpdma_ctlr_start(priv->dma); - priv->phydev = NULL; - if (priv->phy_node) { - priv->phydev = of_phy_connect(ndev, priv->phy_node, - &emac_adjust_link, 0, 0); - if (!priv->phydev) { + phydev = of_phy_connect(ndev, priv->phy_node, + &emac_adjust_link, 0, 0); + if (!phydev) { dev_err(emac_dev, "could not connect to phy %s\n", priv->phy_node->full_name); ret = -ENODEV; @@ -1621,7 +1487,7 @@ static int emac_dev_open(struct net_device *ndev) } /* use the first phy on the bus if pdata did not give us a phy id */ - if (!priv->phydev && !priv->phy_id) { + if (!phydev && !priv->phy_id) { struct device *phy; phy = bus_find_device(&mdio_bus_type, NULL, NULL, @@ -1630,16 +1496,15 @@ static int emac_dev_open(struct net_device *ndev) priv->phy_id = dev_name(phy); } - if (!priv->phydev && priv->phy_id && *priv->phy_id) { - priv->phydev = phy_connect(ndev, priv->phy_id, - &emac_adjust_link, - PHY_INTERFACE_MODE_MII); + if (!phydev && priv->phy_id && *priv->phy_id) { + phydev = phy_connect(ndev, priv->phy_id, + &emac_adjust_link, + PHY_INTERFACE_MODE_MII); - if (IS_ERR(priv->phydev)) { + if (IS_ERR(phydev)) { dev_err(emac_dev, "could not connect to phy %s\n", priv->phy_id); - ret = PTR_ERR(priv->phydev); - priv->phydev = NULL; + ret = PTR_ERR(phydev); goto err; } @@ -1647,10 +1512,10 @@ static int emac_dev_open(struct net_device *ndev) priv->speed = 0; priv->duplex = ~0; - phy_attached_info(priv->phydev); + phy_attached_info(phydev); } - if (!priv->phydev) { + if (!phydev) { /* No PHY , fix the link, speed and duplex settings */ dev_notice(emac_dev, "no phy, defaulting to 100/full\n"); priv->link = 1; @@ -1659,14 +1524,11 @@ static int emac_dev_open(struct net_device *ndev) emac_update_phystatus(priv); } - if (!netif_running(ndev)) /* debug only - to avoid compiler warning */ - emac_dump_regs(priv); - if (netif_msg_drv(priv)) dev_notice(emac_dev, "DaVinci EMAC: Opened %s\n", ndev->name); - if (priv->phydev) - phy_start(priv->phydev); + if (phydev) + phy_start(phydev); return 0; @@ -1717,8 +1579,8 @@ static int emac_dev_stop(struct net_device *ndev) cpdma_ctlr_stop(priv->dma); emac_write(EMAC_SOFTRESET, 1); - if (priv->phydev) - phy_disconnect(priv->phydev); + if (ndev->phydev) + phy_disconnect(ndev->phydev); /* Free IRQ */ while ((res = platform_get_resource(priv->pdev, IORESOURCE_IRQ, i))) { diff --git a/drivers/net/ethernet/ti/davinci_mdio.c b/drivers/net/ethernet/ti/davinci_mdio.c index 4e7c9b9b042a..33df340db1f1 100644 --- a/drivers/net/ethernet/ti/davinci_mdio.c +++ b/drivers/net/ethernet/ti/davinci_mdio.c @@ -53,6 +53,10 @@ #define DEF_OUT_FREQ 2200000 /* 2.2 MHz */ +struct davinci_mdio_of_param { + int autosuspend_delay_ms; +}; + struct davinci_mdio_regs { u32 version; u32 control; @@ -90,19 +94,19 @@ static const struct mdio_platform_data default_pdata = { struct davinci_mdio_data { struct mdio_platform_data pdata; struct davinci_mdio_regs __iomem *regs; - spinlock_t lock; struct clk *clk; struct device *dev; struct mii_bus *bus; - bool suspended; + bool active_in_suspend; unsigned long access_time; /* jiffies */ /* Indicates that driver shouldn't modify phy_mask in case * if MDIO bus is registered from DT. */ bool skip_scan; + u32 clk_div; }; -static void __davinci_mdio_reset(struct davinci_mdio_data *data) +static void davinci_mdio_init_clk(struct davinci_mdio_data *data) { u32 mdio_in, div, mdio_out_khz, access_time; @@ -111,9 +115,7 @@ static void __davinci_mdio_reset(struct davinci_mdio_data *data) if (div > CONTROL_MAX_DIV) div = CONTROL_MAX_DIV; - /* set enable and clock divider */ - __raw_writel(div | CONTROL_ENABLE, &data->regs->control); - + data->clk_div = div; /* * One mdio transaction consists of: * 32 bits of preamble @@ -134,12 +136,23 @@ static void __davinci_mdio_reset(struct davinci_mdio_data *data) data->access_time = 1; } +static void davinci_mdio_enable(struct davinci_mdio_data *data) +{ + /* set enable and clock divider */ + __raw_writel(data->clk_div | CONTROL_ENABLE, &data->regs->control); +} + static int davinci_mdio_reset(struct mii_bus *bus) { struct davinci_mdio_data *data = bus->priv; u32 phy_mask, ver; + int ret; - __davinci_mdio_reset(data); + ret = pm_runtime_get_sync(data->dev); + if (ret < 0) { + pm_runtime_put_noidle(data->dev); + return ret; + } /* wait for scan logic to settle */ msleep(PHY_MAX_ADDR * data->access_time); @@ -150,7 +163,7 @@ static int davinci_mdio_reset(struct mii_bus *bus) (ver >> 8) & 0xff, ver & 0xff); if (data->skip_scan) - return 0; + goto done; /* get phy mask from the alive register */ phy_mask = __raw_readl(&data->regs->alive); @@ -165,6 +178,10 @@ static int davinci_mdio_reset(struct mii_bus *bus) } data->bus->phy_mask = phy_mask; +done: + pm_runtime_mark_last_busy(data->dev); + pm_runtime_put_autosuspend(data->dev); + return 0; } @@ -190,7 +207,7 @@ static inline int wait_for_user_access(struct davinci_mdio_data *data) * operation */ dev_warn(data->dev, "resetting idled controller\n"); - __davinci_mdio_reset(data); + davinci_mdio_enable(data); return -EAGAIN; } @@ -225,11 +242,10 @@ static int davinci_mdio_read(struct mii_bus *bus, int phy_id, int phy_reg) if (phy_reg & ~PHY_REG_MASK || phy_id & ~PHY_ID_MASK) return -EINVAL; - spin_lock(&data->lock); - - if (data->suspended) { - spin_unlock(&data->lock); - return -ENODEV; + ret = pm_runtime_get_sync(data->dev); + if (ret < 0) { + pm_runtime_put_noidle(data->dev); + return ret; } reg = (USERACCESS_GO | USERACCESS_READ | (phy_reg << 21) | @@ -255,8 +271,8 @@ static int davinci_mdio_read(struct mii_bus *bus, int phy_id, int phy_reg) break; } - spin_unlock(&data->lock); - + pm_runtime_mark_last_busy(data->dev); + pm_runtime_put_autosuspend(data->dev); return ret; } @@ -270,11 +286,10 @@ static int davinci_mdio_write(struct mii_bus *bus, int phy_id, if (phy_reg & ~PHY_REG_MASK || phy_id & ~PHY_ID_MASK) return -EINVAL; - spin_lock(&data->lock); - - if (data->suspended) { - spin_unlock(&data->lock); - return -ENODEV; + ret = pm_runtime_get_sync(data->dev); + if (ret < 0) { + pm_runtime_put_noidle(data->dev); + return ret; } reg = (USERACCESS_GO | USERACCESS_WRITE | (phy_reg << 21) | @@ -295,9 +310,10 @@ static int davinci_mdio_write(struct mii_bus *bus, int phy_id, break; } - spin_unlock(&data->lock); + pm_runtime_mark_last_busy(data->dev); + pm_runtime_put_autosuspend(data->dev); - return 0; + return ret; } #if IS_ENABLED(CONFIG_OF) @@ -320,6 +336,19 @@ static int davinci_mdio_probe_dt(struct mdio_platform_data *data, } #endif +#if IS_ENABLED(CONFIG_OF) +static const struct davinci_mdio_of_param of_cpsw_mdio_data = { + .autosuspend_delay_ms = 100, +}; + +static const struct of_device_id davinci_mdio_of_mtable[] = { + { .compatible = "ti,davinci_mdio", }, + { .compatible = "ti,cpsw-mdio", .data = &of_cpsw_mdio_data}, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(of, davinci_mdio_of_mtable); +#endif + static int davinci_mdio_probe(struct platform_device *pdev) { struct mdio_platform_data *pdata = dev_get_platdata(&pdev->dev); @@ -328,6 +357,7 @@ static int davinci_mdio_probe(struct platform_device *pdev) struct resource *res; struct phy_device *phy; int ret, addr; + int autosuspend_delay_ms = -1; data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); if (!data) @@ -340,9 +370,22 @@ static int davinci_mdio_probe(struct platform_device *pdev) } if (dev->of_node) { - if (davinci_mdio_probe_dt(&data->pdata, pdev)) - data->pdata = default_pdata; + const struct of_device_id *of_id; + + ret = davinci_mdio_probe_dt(&data->pdata, pdev); + if (ret) + return ret; snprintf(data->bus->id, MII_BUS_ID_SIZE, "%s", pdev->name); + + of_id = of_match_device(davinci_mdio_of_mtable, &pdev->dev); + if (of_id) { + const struct davinci_mdio_of_param *of_mdio_data; + + of_mdio_data = of_id->data; + if (of_mdio_data) + autosuspend_delay_ms = + of_mdio_data->autosuspend_delay_ms; + } } else { data->pdata = pdata ? (*pdata) : default_pdata; snprintf(data->bus->id, MII_BUS_ID_SIZE, "%s-%x", @@ -356,26 +399,25 @@ static int davinci_mdio_probe(struct platform_device *pdev) data->bus->parent = dev; data->bus->priv = data; - pm_runtime_enable(&pdev->dev); - pm_runtime_get_sync(&pdev->dev); data->clk = devm_clk_get(dev, "fck"); if (IS_ERR(data->clk)) { dev_err(dev, "failed to get device clock\n"); - ret = PTR_ERR(data->clk); - data->clk = NULL; - goto bail_out; + return PTR_ERR(data->clk); } dev_set_drvdata(dev, data); data->dev = dev; - spin_lock_init(&data->lock); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); data->regs = devm_ioremap_resource(dev, res); - if (IS_ERR(data->regs)) { - ret = PTR_ERR(data->regs); - goto bail_out; - } + if (IS_ERR(data->regs)) + return PTR_ERR(data->regs); + + davinci_mdio_init_clk(data); + + pm_runtime_set_autosuspend_delay(&pdev->dev, autosuspend_delay_ms); + pm_runtime_use_autosuspend(&pdev->dev); + pm_runtime_enable(&pdev->dev); /* register the mii bus * Create PHYs from DT only in case if PHY child nodes are explicitly @@ -404,9 +446,8 @@ static int davinci_mdio_probe(struct platform_device *pdev) return 0; bail_out: - pm_runtime_put_sync(&pdev->dev); + pm_runtime_dont_use_autosuspend(&pdev->dev); pm_runtime_disable(&pdev->dev); - return ret; } @@ -417,29 +458,47 @@ static int davinci_mdio_remove(struct platform_device *pdev) if (data->bus) mdiobus_unregister(data->bus); - pm_runtime_put_sync(&pdev->dev); + pm_runtime_dont_use_autosuspend(&pdev->dev); pm_runtime_disable(&pdev->dev); return 0; } -#ifdef CONFIG_PM_SLEEP -static int davinci_mdio_suspend(struct device *dev) +#ifdef CONFIG_PM +static int davinci_mdio_runtime_suspend(struct device *dev) { struct davinci_mdio_data *data = dev_get_drvdata(dev); u32 ctrl; - spin_lock(&data->lock); - /* shutdown the scan state machine */ ctrl = __raw_readl(&data->regs->control); ctrl &= ~CONTROL_ENABLE; __raw_writel(ctrl, &data->regs->control); wait_for_idle(data); - data->suspended = true; - spin_unlock(&data->lock); - pm_runtime_put_sync(data->dev); + return 0; +} + +static int davinci_mdio_runtime_resume(struct device *dev) +{ + struct davinci_mdio_data *data = dev_get_drvdata(dev); + + davinci_mdio_enable(data); + return 0; +} +#endif + +#ifdef CONFIG_PM_SLEEP +static int davinci_mdio_suspend(struct device *dev) +{ + struct davinci_mdio_data *data = dev_get_drvdata(dev); + int ret = 0; + + data->active_in_suspend = !pm_runtime_status_suspended(dev); + if (data->active_in_suspend) + ret = pm_runtime_force_suspend(dev); + if (ret < 0) + return ret; /* Select sleep pin state */ pinctrl_pm_select_sleep_state(dev); @@ -454,31 +513,19 @@ static int davinci_mdio_resume(struct device *dev) /* Select default pin state */ pinctrl_pm_select_default_state(dev); - pm_runtime_get_sync(data->dev); - - spin_lock(&data->lock); - /* restart the scan state machine */ - __davinci_mdio_reset(data); - - data->suspended = false; - spin_unlock(&data->lock); + if (data->active_in_suspend) + pm_runtime_force_resume(dev); return 0; } #endif static const struct dev_pm_ops davinci_mdio_pm_ops = { + SET_RUNTIME_PM_OPS(davinci_mdio_runtime_suspend, + davinci_mdio_runtime_resume, NULL) SET_LATE_SYSTEM_SLEEP_PM_OPS(davinci_mdio_suspend, davinci_mdio_resume) }; -#if IS_ENABLED(CONFIG_OF) -static const struct of_device_id davinci_mdio_of_mtable[] = { - { .compatible = "ti,davinci_mdio", }, - { /* sentinel */ }, -}; -MODULE_DEVICE_TABLE(of, davinci_mdio_of_mtable); -#endif - static struct platform_driver davinci_mdio_driver = { .driver = { .name = "davinci_mdio", diff --git a/drivers/net/ethernet/ti/tlan.c b/drivers/net/ethernet/ti/tlan.c index 561703317312..ece0ea0f6b38 100644 --- a/drivers/net/ethernet/ti/tlan.c +++ b/drivers/net/ethernet/ti/tlan.c @@ -1651,7 +1651,6 @@ static u32 tlan_handle_tx_eoc(struct net_device *dev, u16 host_int) dma_addr_t head_list_phys; u32 ack = 1; - host_int = 0; if (priv->tlan_rev < 0x30) { TLAN_DBG(TLAN_DEBUG_TX, "TRANSMIT: handling TX EOC (Head=%d Tail=%d) -- IRQ\n", |