From ad01b7d480a4a135f974afd5c617c417e0b0542f Mon Sep 17 00:00:00 2001 From: Giuseppe CAVALLARO Date: Mon, 23 Aug 2010 20:40:42 +0000 Subject: stmmac: make ioaddr 'void __iomem *' rather than unsigned long This avoids unnecessary casting and adds the ioaddr in the private structure. This patch also removes many warning when compile the driver. Signed-off-by: Giuseppe Cavallaro Signed-off-by: David S. Miller --- include/linux/stmmac.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux/stmmac.h') diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h index 632ff7c03280..a4adf0de6ed6 100644 --- a/include/linux/stmmac.h +++ b/include/linux/stmmac.h @@ -35,7 +35,7 @@ struct plat_stmmacenet_data { int has_gmac; int enh_desc; void (*fix_mac_speed)(void *priv, unsigned int speed); - void (*bus_setup)(unsigned long ioaddr); + void (*bus_setup)(void __iomem *ioaddr); #ifdef CONFIG_STM_DRIVERS struct stm_pad_config *pad_config; #endif -- cgit v1.2.3 From dfb8fb96ae2b5126cd0c08c0ccd7c42e1f46568a Mon Sep 17 00:00:00 2001 From: Giuseppe CAVALLARO Date: Fri, 17 Sep 2010 03:23:39 +0000 Subject: stmmac: add CSR Clock range selection This patch adds the CSR Clock range selection. Original patch from Johannes Stezenbach fixed the CSR in the stmmac_mdio. We agreed to provide this through the platform instead of. Also thanks to Johannes for having tested it on ARM. Signed-off-by: Giuseppe Cavallaro Signed-off-by: Johannes Stezenbach Signed-off-by: David S. Miller --- drivers/net/stmmac/stmmac.h | 1 + drivers/net/stmmac/stmmac_main.c | 1 + drivers/net/stmmac/stmmac_mdio.c | 5 +++-- include/linux/stmmac.h | 1 + 4 files changed, 6 insertions(+), 2 deletions(-) (limited to 'include/linux/stmmac.h') diff --git a/drivers/net/stmmac/stmmac.h b/drivers/net/stmmac/stmmac.h index d0ddab0d21c2..12d1cb00c0d7 100644 --- a/drivers/net/stmmac/stmmac.h +++ b/drivers/net/stmmac/stmmac.h @@ -78,6 +78,7 @@ struct stmmac_priv { unsigned int flow_ctrl; unsigned int pause; struct mii_bus *mii; + int mii_clk_csr; u32 msg_enable; spinlock_t lock; diff --git a/drivers/net/stmmac/stmmac_main.c b/drivers/net/stmmac/stmmac_main.c index 03c160c6d75c..a169b1441d50 100644 --- a/drivers/net/stmmac/stmmac_main.c +++ b/drivers/net/stmmac/stmmac_main.c @@ -1704,6 +1704,7 @@ static int stmmac_dvr_probe(struct platform_device *pdev) plat_dat = pdev->dev.platform_data; priv->bus_id = plat_dat->bus_id; priv->pbl = plat_dat->pbl; /* TLI */ + priv->mii_clk_csr = plat_dat->clk_csr; priv->is_gmac = plat_dat->has_gmac; /* GMAC is on board */ priv->enh_desc = plat_dat->enh_desc; priv->ioaddr = addr; diff --git a/drivers/net/stmmac/stmmac_mdio.c b/drivers/net/stmmac/stmmac_mdio.c index 03dea1401571..d7441616357d 100644 --- a/drivers/net/stmmac/stmmac_mdio.c +++ b/drivers/net/stmmac/stmmac_mdio.c @@ -53,7 +53,7 @@ static int stmmac_mdio_read(struct mii_bus *bus, int phyaddr, int phyreg) int data; u16 regValue = (((phyaddr << 11) & (0x0000F800)) | ((phyreg << 6) & (0x000007C0))); - regValue |= MII_BUSY; /* in case of GMAC */ + regValue |= MII_BUSY | ((priv->mii_clk_csr & 7) << 2); do {} while (((readl(priv->ioaddr + mii_address)) & MII_BUSY) == 1); writel(regValue, priv->ioaddr + mii_address); @@ -85,7 +85,8 @@ static int stmmac_mdio_write(struct mii_bus *bus, int phyaddr, int phyreg, (((phyaddr << 11) & (0x0000F800)) | ((phyreg << 6) & (0x000007C0))) | MII_WRITE; - value |= MII_BUSY; + value |= MII_BUSY | ((priv->mii_clk_csr & 7) << 2); + /* Wait until any existing MII operation is complete */ do {} while (((readl(priv->ioaddr + mii_address)) & MII_BUSY) == 1); diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h index a4adf0de6ed6..c87c88ccffc0 100644 --- a/include/linux/stmmac.h +++ b/include/linux/stmmac.h @@ -32,6 +32,7 @@ struct plat_stmmacenet_data { int bus_id; int pbl; + int clk_csr; int has_gmac; int enh_desc; void (*fix_mac_speed)(void *priv, unsigned int speed); -- cgit v1.2.3 From ebbb293f8b3021ae2009fcb7cb3b8a52fb5fd06a Mon Sep 17 00:00:00 2001 From: Giuseppe CAVALLARO Date: Fri, 17 Sep 2010 03:23:40 +0000 Subject: stmmac: consolidate and tidy-up the COE support The first version of the driver had hard-coded the logic for handling the checksum offloading. This was designed according to the chips included in the STM platforms where: o MAC10/100 supports no COE at all. o GMAC fully supports RX/TX COE. This is not good for other chip configurations where, for example, the mac10/100 supports the tx csum in HW or when the GMAC has no IPC. Thanks to Johannes Stezenbach; he provided me a first draft of this patch that only reviewed the IPC for the GMAC devices. This patch also helps on SPEAr platforms where the MAC10/100 can perform the TX csum in HW. Thanks to Deepak SIKRI for his support on this. In the end, GMAC devices for STM platforms have a bugged Jumbo frame support that needs to have the Tx COE disabled for oversized frames (due to limited buffer sizes). This information is also passed through the driver's platform structure. Signed-off-by: Giuseppe Cavallaro Signed-off-by: Johannes Stezenbach Signed-off-by: Deepak SIKRI Signed-off-by: David S. Miller --- drivers/net/stmmac/common.h | 4 +-- drivers/net/stmmac/dwmac1000.h | 2 +- drivers/net/stmmac/dwmac1000_core.c | 13 ++++++++ drivers/net/stmmac/dwmac100_core.c | 6 ++++ drivers/net/stmmac/stmmac.h | 4 ++- drivers/net/stmmac/stmmac_ethtool.c | 2 +- drivers/net/stmmac/stmmac_main.c | 66 ++++++++++++++++++------------------- include/linux/stmmac.h | 2 ++ 8 files changed, 60 insertions(+), 39 deletions(-) (limited to 'include/linux/stmmac.h') diff --git a/drivers/net/stmmac/common.h b/drivers/net/stmmac/common.h index e8cbcb5c206e..673ef86a063f 100644 --- a/drivers/net/stmmac/common.h +++ b/drivers/net/stmmac/common.h @@ -102,8 +102,6 @@ struct stmmac_extra_stats { #define SF_DMA_MODE 1 /* DMA STORE-AND-FORWARD Operation Mode */ -#define HW_CSUM 1 -#define NO_HW_CSUM 0 enum rx_frame_status { /* IPC status */ good_frame = 0, discard_frame = 1, @@ -205,6 +203,8 @@ struct stmmac_dma_ops { struct stmmac_ops { /* MAC core initialization */ void (*core_init) (void __iomem *ioaddr) ____cacheline_aligned; + /* Support checksum offload engine */ + int (*rx_coe) (void __iomem *ioaddr); /* Dump MAC registers */ void (*dump_regs) (void __iomem *ioaddr); /* Handle extra events on specific interrupts hw dependent */ diff --git a/drivers/net/stmmac/dwmac1000.h b/drivers/net/stmmac/dwmac1000.h index 8b20b19971cb..81ee4fd04386 100644 --- a/drivers/net/stmmac/dwmac1000.h +++ b/drivers/net/stmmac/dwmac1000.h @@ -99,7 +99,7 @@ enum inter_frame_gap { #define GMAC_CONTROL_RE 0x00000004 /* Receiver Enable */ #define GMAC_CORE_INIT (GMAC_CONTROL_JD | GMAC_CONTROL_PS | GMAC_CONTROL_ACS | \ - GMAC_CONTROL_IPC | GMAC_CONTROL_JE | GMAC_CONTROL_BE) + GMAC_CONTROL_JE | GMAC_CONTROL_BE) /* GMAC Frame Filter defines */ #define GMAC_FRAME_FILTER_PR 0x00000001 /* Promiscuous Mode */ diff --git a/drivers/net/stmmac/dwmac1000_core.c b/drivers/net/stmmac/dwmac1000_core.c index f1f426146f40..c18c85993179 100644 --- a/drivers/net/stmmac/dwmac1000_core.c +++ b/drivers/net/stmmac/dwmac1000_core.c @@ -50,6 +50,18 @@ static void dwmac1000_core_init(void __iomem *ioaddr) #endif } +static int dwmac1000_rx_coe_supported(void __iomem *ioaddr) +{ + u32 value = readl(ioaddr + GMAC_CONTROL); + + value |= GMAC_CONTROL_IPC; + writel(value, ioaddr + GMAC_CONTROL); + + value = readl(ioaddr + GMAC_CONTROL); + + return !!(value & GMAC_CONTROL_IPC); +} + static void dwmac1000_dump_regs(void __iomem *ioaddr) { int i; @@ -202,6 +214,7 @@ static void dwmac1000_irq_status(void __iomem *ioaddr) struct stmmac_ops dwmac1000_ops = { .core_init = dwmac1000_core_init, + .rx_coe = dwmac1000_rx_coe_supported, .dump_regs = dwmac1000_dump_regs, .host_irq_status = dwmac1000_irq_status, .set_filter = dwmac1000_set_filter, diff --git a/drivers/net/stmmac/dwmac100_core.c b/drivers/net/stmmac/dwmac100_core.c index db06c04ce480..58a914b27003 100644 --- a/drivers/net/stmmac/dwmac100_core.c +++ b/drivers/net/stmmac/dwmac100_core.c @@ -42,6 +42,11 @@ static void dwmac100_core_init(void __iomem *ioaddr) #endif } +static int dwmac100_rx_coe_supported(void __iomem *ioaddr) +{ + return 0; +} + static void dwmac100_dump_mac_regs(void __iomem *ioaddr) { pr_info("\t----------------------------------------------\n" @@ -165,6 +170,7 @@ static void dwmac100_pmt(void __iomem *ioaddr, unsigned long mode) struct stmmac_ops dwmac100_ops = { .core_init = dwmac100_core_init, + .rx_coe = dwmac100_rx_coe_supported, .dump_regs = dwmac100_dump_mac_regs, .host_irq_status = dwmac100_irq_status, .set_filter = dwmac100_set_filter, diff --git a/drivers/net/stmmac/stmmac.h b/drivers/net/stmmac/stmmac.h index 12d1cb00c0d7..92154ff7d702 100644 --- a/drivers/net/stmmac/stmmac.h +++ b/drivers/net/stmmac/stmmac.h @@ -51,7 +51,6 @@ struct stmmac_priv { int is_gmac; dma_addr_t dma_rx_phy; unsigned int dma_rx_size; - int rx_csum; unsigned int dma_buf_sz; struct device *device; struct mac_device_info *hw; @@ -92,6 +91,9 @@ struct stmmac_priv { struct vlan_group *vlgrp; #endif int enh_desc; + int rx_coe; + int bugged_jumbo; + int no_csum_insertion; }; #ifdef CONFIG_STM_DRIVERS diff --git a/drivers/net/stmmac/stmmac_ethtool.c b/drivers/net/stmmac/stmmac_ethtool.c index 63b68e61afce..b32c16ae55c6 100644 --- a/drivers/net/stmmac/stmmac_ethtool.c +++ b/drivers/net/stmmac/stmmac_ethtool.c @@ -209,7 +209,7 @@ u32 stmmac_ethtool_get_rx_csum(struct net_device *dev) { struct stmmac_priv *priv = netdev_priv(dev); - return priv->rx_csum; + return priv->rx_coe; } static void diff --git a/drivers/net/stmmac/stmmac_main.c b/drivers/net/stmmac/stmmac_main.c index a169b1441d50..a908f7201aae 100644 --- a/drivers/net/stmmac/stmmac_main.c +++ b/drivers/net/stmmac/stmmac_main.c @@ -134,13 +134,6 @@ static int buf_sz = DMA_BUFFER_SIZE; module_param(buf_sz, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(buf_sz, "DMA buffer size"); -/* In case of Giga ETH, we can enable/disable the COE for the - * transmit HW checksum computation. - * Note that, if tx csum is off in HW, SG will be still supported. */ -static int tx_coe = HW_CSUM; -module_param(tx_coe, int, S_IRUGO | S_IWUSR); -MODULE_PARM_DESC(tx_coe, "GMAC COE type 2 [on/off]"); - static const u32 default_msg_level = (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN | NETIF_MSG_TIMER); @@ -569,29 +562,22 @@ static void free_dma_desc_resources(struct stmmac_priv *priv) * stmmac_dma_operation_mode - HW DMA operation mode * @priv : pointer to the private device structure. * Description: it sets the DMA operation mode: tx/rx DMA thresholds - * or Store-And-Forward capability. It also verifies the COE for the - * transmission in case of Giga ETH. + * or Store-And-Forward capability. */ static void stmmac_dma_operation_mode(struct stmmac_priv *priv) { - if (!priv->is_gmac) { - /* MAC 10/100 */ - priv->hw->dma->dma_mode(priv->ioaddr, tc, 0); - priv->tx_coe = NO_HW_CSUM; - } else { - if ((priv->dev->mtu <= ETH_DATA_LEN) && (tx_coe)) { - priv->hw->dma->dma_mode(priv->ioaddr, - SF_DMA_MODE, SF_DMA_MODE); - tc = SF_DMA_MODE; - priv->tx_coe = HW_CSUM; - } else { - /* Checksum computation is performed in software. */ - priv->hw->dma->dma_mode(priv->ioaddr, tc, - SF_DMA_MODE); - priv->tx_coe = NO_HW_CSUM; - } - } - tx_coe = priv->tx_coe; + if (likely((priv->tx_coe) && (!priv->no_csum_insertion))) { + /* In case of GMAC, SF mode has to be enabled + * to perform the TX COE. This depends on: + * 1) TX COE if actually supported + * 2) There is no bugged Jumbo frame support + * that needs to not insert csum in the TDES. + */ + priv->hw->dma->dma_mode(priv->ioaddr, + SF_DMA_MODE, SF_DMA_MODE); + tc = SF_DMA_MODE; + } else + priv->hw->dma->dma_mode(priv->ioaddr, tc, SF_DMA_MODE); } /** @@ -858,6 +844,12 @@ static int stmmac_open(struct net_device *dev) /* Initialize the MAC Core */ priv->hw->mac->core_init(priv->ioaddr); + priv->rx_coe = priv->hw->mac->rx_coe(priv->ioaddr); + if (priv->rx_coe) + pr_info("stmmac: Rx Checksum Offload Engine supported\n"); + if (priv->tx_coe) + pr_info("\tTX Checksum insertion supported\n"); + priv->shutdown = 0; /* Initialise the MMC (if present) to disable all interrupts. */ @@ -1066,7 +1058,7 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev) return stmmac_sw_tso(priv, skb); if (likely((skb->ip_summed == CHECKSUM_PARTIAL))) { - if (likely(priv->tx_coe == NO_HW_CSUM)) + if (unlikely((!priv->tx_coe) || (priv->no_csum_insertion))) skb_checksum_help(skb); else csum_insertion = 1; @@ -1390,6 +1382,15 @@ static int stmmac_change_mtu(struct net_device *dev, int new_mtu) return -EINVAL; } + /* Some GMAC devices have a bugged Jumbo frame support that + * needs to have the Tx COE disabled for oversized frames + * (due to limited buffer sizes). In this case we disable + * the TX csum insertionin the TDES and not use SF. */ + if ((priv->bugged_jumbo) && (priv->dev->mtu > ETH_DATA_LEN)) + priv->no_csum_insertion = 1; + else + priv->no_csum_insertion = 0; + dev->mtu = new_mtu; return 0; @@ -1510,9 +1511,6 @@ static int stmmac_probe(struct net_device *dev) #endif priv->msg_enable = netif_msg_init(debug, default_msg_level); - if (priv->is_gmac) - priv->rx_csum = 1; - if (flow_ctrl) priv->flow_ctrl = FLOW_AUTO; /* RX/TX pause on */ @@ -1662,7 +1660,7 @@ static int stmmac_dvr_probe(struct platform_device *pdev) ret = -ENODEV; goto out; } - pr_info("done!\n"); + pr_info("\tdone!\n"); if (!request_mem_region(res->start, resource_size(res), pdev->name)) { @@ -1705,6 +1703,8 @@ static int stmmac_dvr_probe(struct platform_device *pdev) priv->bus_id = plat_dat->bus_id; priv->pbl = plat_dat->pbl; /* TLI */ priv->mii_clk_csr = plat_dat->clk_csr; + priv->tx_coe = plat_dat->tx_coe; + priv->bugged_jumbo = plat_dat->bugged_jumbo; priv->is_gmac = plat_dat->has_gmac; /* GMAC is on board */ priv->enh_desc = plat_dat->enh_desc; priv->ioaddr = addr; @@ -1966,8 +1966,6 @@ static int __init stmmac_cmdline_opt(char *str) strict_strtoul(opt + 7, 0, (unsigned long *)&buf_sz); else if (!strncmp(opt, "tc:", 3)) strict_strtoul(opt + 3, 0, (unsigned long *)&tc); - else if (!strncmp(opt, "tx_coe:", 7)) - strict_strtoul(opt + 7, 0, (unsigned long *)&tx_coe); else if (!strncmp(opt, "watchdog:", 9)) strict_strtoul(opt + 9, 0, (unsigned long *)&watchdog); else if (!strncmp(opt, "flow_ctrl:", 10)) diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h index c87c88ccffc0..1d8baf719211 100644 --- a/include/linux/stmmac.h +++ b/include/linux/stmmac.h @@ -35,6 +35,8 @@ struct plat_stmmacenet_data { int clk_csr; int has_gmac; int enh_desc; + int tx_coe; + int bugged_jumbo; void (*fix_mac_speed)(void *priv, unsigned int speed); void (*bus_setup)(void __iomem *ioaddr); #ifdef CONFIG_STM_DRIVERS -- cgit v1.2.3 From 543876c92837a8b208b5c99ec225c1f5a581900e Mon Sep 17 00:00:00 2001 From: Giuseppe Cavallaro Date: Fri, 24 Sep 2010 21:27:41 -0700 Subject: stmmac: review the wake-up support If the PM support is available this is passed through the platform instead to be hard-coded in the core files. WoL on Magic Frame can be enabled by using the ethtool support. Signed-off-by: Giuseppe Cavallaro Signed-off-by: David S. Miller --- drivers/net/stmmac/common.h | 1 - drivers/net/stmmac/dwmac1000_core.c | 1 - drivers/net/stmmac/dwmac100_core.c | 1 - drivers/net/stmmac/stmmac_ethtool.c | 14 +++++++++----- drivers/net/stmmac/stmmac_main.c | 26 ++++++++++++++------------ include/linux/stmmac.h | 1 + 6 files changed, 24 insertions(+), 20 deletions(-) (limited to 'include/linux/stmmac.h') diff --git a/drivers/net/stmmac/common.h b/drivers/net/stmmac/common.h index 673ef86a063f..dec7ce40c27a 100644 --- a/drivers/net/stmmac/common.h +++ b/drivers/net/stmmac/common.h @@ -238,7 +238,6 @@ struct mac_device_info { struct stmmac_ops *mac; struct stmmac_desc_ops *desc; struct stmmac_dma_ops *dma; - unsigned int pmt; /* support Power-Down */ struct mii_regs mii; /* MII register Addresses */ struct mac_link link; }; diff --git a/drivers/net/stmmac/dwmac1000_core.c b/drivers/net/stmmac/dwmac1000_core.c index c18c85993179..65667b692024 100644 --- a/drivers/net/stmmac/dwmac1000_core.c +++ b/drivers/net/stmmac/dwmac1000_core.c @@ -239,7 +239,6 @@ struct mac_device_info *dwmac1000_setup(void __iomem *ioaddr) mac->mac = &dwmac1000_ops; mac->dma = &dwmac1000_dma_ops; - mac->pmt = PMT_SUPPORTED; mac->link.port = GMAC_CONTROL_PS; mac->link.duplex = GMAC_CONTROL_DM; mac->link.speed = GMAC_CONTROL_FES; diff --git a/drivers/net/stmmac/dwmac100_core.c b/drivers/net/stmmac/dwmac100_core.c index 58a914b27003..94eeccf3a8a0 100644 --- a/drivers/net/stmmac/dwmac100_core.c +++ b/drivers/net/stmmac/dwmac100_core.c @@ -193,7 +193,6 @@ struct mac_device_info *dwmac100_setup(void __iomem *ioaddr) mac->mac = &dwmac100_ops; mac->dma = &dwmac100_dma_ops; - mac->pmt = PMT_NOT_SUPPORTED; mac->link.port = MAC_CONTROL_PS; mac->link.duplex = MAC_CONTROL_F; mac->link.speed = 0; diff --git a/drivers/net/stmmac/stmmac_ethtool.c b/drivers/net/stmmac/stmmac_ethtool.c index b32c16ae55c6..25a7e385f8ec 100644 --- a/drivers/net/stmmac/stmmac_ethtool.c +++ b/drivers/net/stmmac/stmmac_ethtool.c @@ -322,7 +322,7 @@ static void stmmac_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) struct stmmac_priv *priv = netdev_priv(dev); spin_lock_irq(&priv->lock); - if (priv->wolenabled == PMT_SUPPORTED) { + if (device_can_wakeup(priv->device)) { wol->supported = WAKE_MAGIC; wol->wolopts = priv->wolopts; } @@ -334,16 +334,20 @@ static int stmmac_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) struct stmmac_priv *priv = netdev_priv(dev); u32 support = WAKE_MAGIC; - if (priv->wolenabled == PMT_NOT_SUPPORTED) + if (!device_can_wakeup(priv->device)) return -EINVAL; if (wol->wolopts & ~support) return -EINVAL; - if (wol->wolopts == 0) - device_set_wakeup_enable(priv->device, 0); - else + if (wol->wolopts) { + pr_info("stmmac: wakeup enable\n"); device_set_wakeup_enable(priv->device, 1); + enable_irq_wake(dev->irq); + } else { + device_set_wakeup_enable(priv->device, 0); + disable_irq_wake(dev->irq); + } spin_lock_irq(&priv->lock); priv->wolopts = wol->wolopts; diff --git a/drivers/net/stmmac/stmmac_main.c b/drivers/net/stmmac/stmmac_main.c index a908f7201aae..823b9e6431d5 100644 --- a/drivers/net/stmmac/stmmac_main.c +++ b/drivers/net/stmmac/stmmac_main.c @@ -1568,9 +1568,8 @@ static int stmmac_mac_device_setup(struct net_device *dev) priv->hw = device; - priv->wolenabled = priv->hw->pmt; /* PMT supported */ - if (priv->wolenabled == PMT_SUPPORTED) - priv->wolopts = WAKE_MAGIC; /* Magic Frame */ + if (device_can_wakeup(priv->device)) + priv->wolopts = WAKE_MAGIC; /* Magic Frame as default */ return 0; } @@ -1709,6 +1708,12 @@ static int stmmac_dvr_probe(struct platform_device *pdev) priv->enh_desc = plat_dat->enh_desc; priv->ioaddr = addr; + /* PMT module is not integrated in all the MAC devices. */ + if (plat_dat->pmt) { + pr_info("\tPMT module supported\n"); + device_set_wakeup_capable(&pdev->dev, 1); + } + platform_set_drvdata(pdev, ndev); /* Set the I/O base addr */ @@ -1836,13 +1841,11 @@ static int stmmac_suspend(struct platform_device *pdev, pm_message_t state) stmmac_mac_disable_tx(priv->ioaddr); - if (device_may_wakeup(&(pdev->dev))) { - /* Enable Power down mode by programming the PMT regs */ - if (priv->wolenabled == PMT_SUPPORTED) - priv->hw->mac->pmt(priv->ioaddr, priv->wolopts); - } else { + /* Enable Power down mode by programming the PMT regs */ + if (device_can_wakeup(priv->device)) + priv->hw->mac->pmt(priv->ioaddr, priv->wolopts); + else stmmac_mac_disable_rx(priv->ioaddr); - } } else { priv->shutdown = 1; /* Although this can appear slightly redundant it actually @@ -1877,9 +1880,8 @@ static int stmmac_resume(struct platform_device *pdev) * is received. Anyway, it's better to manually clear * this bit because it can generate problems while resuming * from another devices (e.g. serial console). */ - if (device_may_wakeup(&(pdev->dev))) - if (priv->wolenabled == PMT_SUPPORTED) - priv->hw->mac->pmt(priv->ioaddr, 0); + if (device_can_wakeup(priv->device)) + priv->hw->mac->pmt(priv->ioaddr, 0); netif_device_attach(dev); diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h index 1d8baf719211..d66c61774d95 100644 --- a/include/linux/stmmac.h +++ b/include/linux/stmmac.h @@ -37,6 +37,7 @@ struct plat_stmmacenet_data { int enh_desc; int tx_coe; int bugged_jumbo; + int pmt; void (*fix_mac_speed)(void *priv, unsigned int speed); void (*bus_setup)(void __iomem *ioaddr); #ifdef CONFIG_STM_DRIVERS -- cgit v1.2.3