diff options
Diffstat (limited to 'drivers/net/ibm_newemac')
| -rw-r--r-- | drivers/net/ibm_newemac/Kconfig | 12 | ||||
| -rw-r--r-- | drivers/net/ibm_newemac/core.c | 42 | ||||
| -rw-r--r-- | drivers/net/ibm_newemac/core.h | 6 | ||||
| -rw-r--r-- | drivers/net/ibm_newemac/mal.c | 60 | ||||
| -rw-r--r-- | drivers/net/ibm_newemac/mal.h | 34 | ||||
| -rw-r--r-- | drivers/net/ibm_newemac/phy.c | 84 | ||||
| -rw-r--r-- | drivers/net/ibm_newemac/phy.h | 2 |
7 files changed, 226 insertions, 14 deletions
diff --git a/drivers/net/ibm_newemac/Kconfig b/drivers/net/ibm_newemac/Kconfig index bcec7320895..78a1628c989 100644 --- a/drivers/net/ibm_newemac/Kconfig +++ b/drivers/net/ibm_newemac/Kconfig @@ -62,3 +62,15 @@ config IBM_NEW_EMAC_TAH config IBM_NEW_EMAC_EMAC4 bool default n + +config IBM_NEW_EMAC_NO_FLOW_CTRL + bool + default n + +config IBM_NEW_EMAC_MAL_CLR_ICINTSTAT + bool + default n + +config IBM_NEW_EMAC_MAL_COMMON_ERR + bool + default n diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c index 58dfd32ccca..efcf21c9f5c 100644 --- a/drivers/net/ibm_newemac/core.c +++ b/drivers/net/ibm_newemac/core.c @@ -202,13 +202,15 @@ static inline int emac_phy_supports_gige(int phy_mode) { return phy_mode == PHY_MODE_GMII || phy_mode == PHY_MODE_RGMII || + phy_mode == PHY_MODE_SGMII || phy_mode == PHY_MODE_TBI || phy_mode == PHY_MODE_RTBI; } static inline int emac_phy_gpcs(int phy_mode) { - return phy_mode == PHY_MODE_TBI || + return phy_mode == PHY_MODE_SGMII || + phy_mode == PHY_MODE_TBI || phy_mode == PHY_MODE_RTBI; } @@ -562,8 +564,9 @@ static int emac_configure(struct emac_instance *dev) switch (dev->phy.speed) { case SPEED_1000: if (emac_phy_gpcs(dev->phy.mode)) { - mr1 |= EMAC_MR1_MF_1000GPCS | - EMAC_MR1_MF_IPPA(dev->phy.address); + mr1 |= EMAC_MR1_MF_1000GPCS | EMAC_MR1_MF_IPPA( + (dev->phy.gpcs_address != 0xffffffff) ? + dev->phy.gpcs_address : dev->phy.address); /* Put some arbitrary OUI, Manuf & Rev IDs so we can * identify this GPCS PHY later. @@ -675,8 +678,12 @@ static int emac_configure(struct emac_instance *dev) out_be32(&p->iser, r); /* We need to take GPCS PHY out of isolate mode after EMAC reset */ - if (emac_phy_gpcs(dev->phy.mode)) - emac_mii_reset_phy(&dev->phy); + if (emac_phy_gpcs(dev->phy.mode)) { + if (dev->phy.gpcs_address != 0xffffffff) + emac_mii_reset_gpcs(&dev->phy); + else + emac_mii_reset_phy(&dev->phy); + } return 0; } @@ -881,7 +888,9 @@ static int emac_mdio_read(struct net_device *ndev, int id, int reg) struct emac_instance *dev = netdev_priv(ndev); int res; - res = __emac_mdio_read(dev->mdio_instance ? dev->mdio_instance : dev, + res = __emac_mdio_read((dev->mdio_instance && + dev->phy.gpcs_address != id) ? + dev->mdio_instance : dev, (u8) id, (u8) reg); return res; } @@ -890,7 +899,9 @@ static void emac_mdio_write(struct net_device *ndev, int id, int reg, int val) { struct emac_instance *dev = netdev_priv(ndev); - __emac_mdio_write(dev->mdio_instance ? dev->mdio_instance : dev, + __emac_mdio_write((dev->mdio_instance && + dev->phy.gpcs_address != id) ? + dev->mdio_instance : dev, (u8) id, (u8) reg, (u16) val); } @@ -2382,7 +2393,11 @@ static int __devinit emac_init_phy(struct emac_instance *dev) * XXX I probably should move these settings to the dev tree */ dev->phy.address = -1; - dev->phy.features = SUPPORTED_100baseT_Full | SUPPORTED_MII; + dev->phy.features = SUPPORTED_MII; + if (emac_phy_supports_gige(dev->phy_mode)) + dev->phy.features |= SUPPORTED_1000baseT_Full; + else + dev->phy.features |= SUPPORTED_100baseT_Full; dev->phy.pause = 1; return 0; @@ -2421,7 +2436,9 @@ static int __devinit emac_init_phy(struct emac_instance *dev) * Note that the busy_phy_map is currently global * while it should probably be per-ASIC... */ - dev->phy.address = dev->cell_index; + dev->phy.gpcs_address = dev->gpcs_address; + if (dev->phy.gpcs_address == 0xffffffff) + dev->phy.address = dev->cell_index; } emac_configure(dev); @@ -2531,6 +2548,8 @@ static int __devinit emac_init_config(struct emac_instance *dev) dev->phy_address = 0xffffffff; if (emac_read_uint_prop(np, "phy-map", &dev->phy_map, 0)) dev->phy_map = 0xffffffff; + if (emac_read_uint_prop(np, "gpcs-address", &dev->gpcs_address, 0)) + dev->gpcs_address = 0xffffffff; if (emac_read_uint_prop(np->parent, "clock-frequency", &dev->opb_bus_freq, 1)) return -ENXIO; if (emac_read_uint_prop(np, "tah-device", &dev->tah_ph, 0)) @@ -2585,6 +2604,8 @@ static int __devinit emac_init_config(struct emac_instance *dev) if (of_device_is_compatible(np, "ibm,emac-440ep") || of_device_is_compatible(np, "ibm,emac-440gr")) dev->features |= EMAC_FTR_440EP_PHY_CLK_FIX; + if (of_device_is_compatible(np, "ibm,emac-405ez")) + dev->features |= EMAC_FTR_NO_FLOW_CONTROL_40x; } /* Fixup some feature bits based on the device tree */ @@ -2842,6 +2863,9 @@ static int __devinit emac_probe(struct of_device *ofdev, ndev->dev_addr[0], ndev->dev_addr[1], ndev->dev_addr[2], ndev->dev_addr[3], ndev->dev_addr[4], ndev->dev_addr[5]); + if (dev->phy_mode == PHY_MODE_SGMII) + printk(KERN_NOTICE "%s: in SGMII mode\n", ndev->name); + if (dev->phy.address >= 0) printk("%s: found %s PHY (0x%02x)\n", ndev->name, dev->phy.def->name, dev->phy.address); diff --git a/drivers/net/ibm_newemac/core.h b/drivers/net/ibm_newemac/core.h index 5ca70e55b6c..18d56c6c423 100644 --- a/drivers/net/ibm_newemac/core.h +++ b/drivers/net/ibm_newemac/core.h @@ -190,6 +190,9 @@ struct emac_instance { struct delayed_work link_work; int link_polling; + /* GPCS PHY infos */ + u32 gpcs_address; + /* Shared MDIO if any */ u32 mdio_ph; struct of_device *mdio_dev; @@ -345,6 +348,9 @@ enum { #ifdef CONFIG_IBM_NEW_EMAC_RGMII EMAC_FTR_HAS_RGMII | #endif +#ifdef CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL + EMAC_FTR_NO_FLOW_CONTROL_40x | +#endif EMAC_FTR_460EX_PHY_CLK_FIX | EMAC_FTR_440EP_PHY_CLK_FIX, }; diff --git a/drivers/net/ibm_newemac/mal.c b/drivers/net/ibm_newemac/mal.c index 10c267b2b96..1839d3f154a 100644 --- a/drivers/net/ibm_newemac/mal.c +++ b/drivers/net/ibm_newemac/mal.c @@ -28,6 +28,7 @@ #include <linux/delay.h> #include "core.h" +#include <asm/dcr-regs.h> static int mal_count; @@ -279,6 +280,10 @@ static irqreturn_t mal_txeob(int irq, void *dev_instance) mal_schedule_poll(mal); set_mal_dcrn(mal, MAL_TXEOBISR, r); + if (mal_has_feature(mal, MAL_FTR_CLEAR_ICINTSTAT)) + mtdcri(SDR0, DCRN_SDR_ICINTSTAT, + (mfdcri(SDR0, DCRN_SDR_ICINTSTAT) | ICINTSTAT_ICTX)); + return IRQ_HANDLED; } @@ -293,6 +298,10 @@ static irqreturn_t mal_rxeob(int irq, void *dev_instance) mal_schedule_poll(mal); set_mal_dcrn(mal, MAL_RXEOBISR, r); + if (mal_has_feature(mal, MAL_FTR_CLEAR_ICINTSTAT)) + mtdcri(SDR0, DCRN_SDR_ICINTSTAT, + (mfdcri(SDR0, DCRN_SDR_ICINTSTAT) | ICINTSTAT_ICRX)); + return IRQ_HANDLED; } @@ -336,6 +345,25 @@ static irqreturn_t mal_rxde(int irq, void *dev_instance) return IRQ_HANDLED; } +static irqreturn_t mal_int(int irq, void *dev_instance) +{ + struct mal_instance *mal = dev_instance; + u32 esr = get_mal_dcrn(mal, MAL_ESR); + + if (esr & MAL_ESR_EVB) { + /* descriptor error */ + if (esr & MAL_ESR_DE) { + if (esr & MAL_ESR_CIDT) + return mal_rxde(irq, dev_instance); + else + return mal_txde(irq, dev_instance); + } else { /* SERR */ + return mal_serr(irq, dev_instance); + } + } + return IRQ_HANDLED; +} + void mal_poll_disable(struct mal_instance *mal, struct mal_commac *commac) { /* Spinlock-type semantics: only one caller disable poll at a time */ @@ -493,6 +521,8 @@ static int __devinit mal_probe(struct of_device *ofdev, unsigned int dcr_base; const u32 *prop; u32 cfg; + unsigned long irqflags; + irq_handler_t hdlr_serr, hdlr_txde, hdlr_rxde; mal = kzalloc(sizeof(struct mal_instance), GFP_KERNEL); if (!mal) { @@ -542,11 +572,21 @@ static int __devinit mal_probe(struct of_device *ofdev, goto fail; } + if (of_device_is_compatible(ofdev->node, "ibm,mcmal-405ez")) + mal->features |= (MAL_FTR_CLEAR_ICINTSTAT | + MAL_FTR_COMMON_ERR_INT); + mal->txeob_irq = irq_of_parse_and_map(ofdev->node, 0); mal->rxeob_irq = irq_of_parse_and_map(ofdev->node, 1); mal->serr_irq = irq_of_parse_and_map(ofdev->node, 2); - mal->txde_irq = irq_of_parse_and_map(ofdev->node, 3); - mal->rxde_irq = irq_of_parse_and_map(ofdev->node, 4); + + if (mal_has_feature(mal, MAL_FTR_COMMON_ERR_INT)) { + mal->txde_irq = mal->rxde_irq = mal->serr_irq; + } else { + mal->txde_irq = irq_of_parse_and_map(ofdev->node, 3); + mal->rxde_irq = irq_of_parse_and_map(ofdev->node, 4); + } + if (mal->txeob_irq == NO_IRQ || mal->rxeob_irq == NO_IRQ || mal->serr_irq == NO_IRQ || mal->txde_irq == NO_IRQ || mal->rxde_irq == NO_IRQ) { @@ -608,16 +648,26 @@ static int __devinit mal_probe(struct of_device *ofdev, sizeof(struct mal_descriptor) * mal_rx_bd_offset(mal, i)); - err = request_irq(mal->serr_irq, mal_serr, 0, "MAL SERR", mal); + if (mal_has_feature(mal, MAL_FTR_COMMON_ERR_INT)) { + irqflags = IRQF_SHARED; + hdlr_serr = hdlr_txde = hdlr_rxde = mal_int; + } else { + irqflags = 0; + hdlr_serr = mal_serr; + hdlr_txde = mal_txde; + hdlr_rxde = mal_rxde; + } + + err = request_irq(mal->serr_irq, hdlr_serr, irqflags, "MAL SERR", mal); if (err) goto fail2; - err = request_irq(mal->txde_irq, mal_txde, 0, "MAL TX DE", mal); + err = request_irq(mal->txde_irq, hdlr_txde, irqflags, "MAL TX DE", mal); if (err) goto fail3; err = request_irq(mal->txeob_irq, mal_txeob, 0, "MAL TX EOB", mal); if (err) goto fail4; - err = request_irq(mal->rxde_irq, mal_rxde, 0, "MAL RX DE", mal); + err = request_irq(mal->rxde_irq, hdlr_rxde, irqflags, "MAL RX DE", mal); if (err) goto fail5; err = request_irq(mal->rxeob_irq, mal_rxeob, 0, "MAL RX EOB", mal); diff --git a/drivers/net/ibm_newemac/mal.h b/drivers/net/ibm_newemac/mal.h index 717dc38b685..2f0a8736084 100644 --- a/drivers/net/ibm_newemac/mal.h +++ b/drivers/net/ibm_newemac/mal.h @@ -213,6 +213,8 @@ struct mal_instance { struct of_device *ofdev; int index; spinlock_t lock; + + unsigned int features; }; static inline u32 get_mal_dcrn(struct mal_instance *mal, int reg) @@ -225,6 +227,38 @@ static inline void set_mal_dcrn(struct mal_instance *mal, int reg, u32 val) dcr_write(mal->dcr_host, reg, val); } +/* Features of various MAL implementations */ + +/* Set if you have interrupt coalescing and you have to clear the SDR + * register for TXEOB and RXEOB interrupts to work + */ +#define MAL_FTR_CLEAR_ICINTSTAT 0x00000001 + +/* Set if your MAL has SERR, TXDE, and RXDE OR'd into a single UIC + * interrupt + */ +#define MAL_FTR_COMMON_ERR_INT 0x00000002 + +enum { + MAL_FTRS_ALWAYS = 0, + + MAL_FTRS_POSSIBLE = +#ifdef CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT + MAL_FTR_CLEAR_ICINTSTAT | +#endif +#ifdef CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR + MAL_FTR_COMMON_ERR_INT | +#endif + 0, +}; + +static inline int mal_has_feature(struct mal_instance *dev, + unsigned long feature) +{ + return (MAL_FTRS_ALWAYS & feature) || + (MAL_FTRS_POSSIBLE & dev->features & feature); +} + /* Register MAL devices */ int mal_init(void); void mal_exit(void); diff --git a/drivers/net/ibm_newemac/phy.c b/drivers/net/ibm_newemac/phy.c index 9164abb72d9..c40cd8df221 100644 --- a/drivers/net/ibm_newemac/phy.c +++ b/drivers/net/ibm_newemac/phy.c @@ -38,6 +38,16 @@ static inline void phy_write(struct mii_phy *phy, int reg, int val) phy->mdio_write(phy->dev, phy->address, reg, val); } +static inline int gpcs_phy_read(struct mii_phy *phy, int reg) +{ + return phy->mdio_read(phy->dev, phy->gpcs_address, reg); +} + +static inline void gpcs_phy_write(struct mii_phy *phy, int reg, int val) +{ + phy->mdio_write(phy->dev, phy->gpcs_address, reg, val); +} + int emac_mii_reset_phy(struct mii_phy *phy) { int val; @@ -62,6 +72,37 @@ int emac_mii_reset_phy(struct mii_phy *phy) return limit <= 0; } +int emac_mii_reset_gpcs(struct mii_phy *phy) +{ + int val; + int limit = 10000; + + val = gpcs_phy_read(phy, MII_BMCR); + val &= ~(BMCR_ISOLATE | BMCR_ANENABLE); + val |= BMCR_RESET; + gpcs_phy_write(phy, MII_BMCR, val); + + udelay(300); + + while (limit--) { + val = gpcs_phy_read(phy, MII_BMCR); + if (val >= 0 && (val & BMCR_RESET) == 0) + break; + udelay(10); + } + if ((val & BMCR_ISOLATE) && limit > 0) + gpcs_phy_write(phy, MII_BMCR, val & ~BMCR_ISOLATE); + + if (limit > 0 && phy->mode == PHY_MODE_SGMII) { + /* Configure GPCS interface to recommended setting for SGMII */ + gpcs_phy_write(phy, 0x04, 0x8120); /* AsymPause, FDX */ + gpcs_phy_write(phy, 0x07, 0x2801); /* msg_pg, toggle */ + gpcs_phy_write(phy, 0x00, 0x0140); /* 1Gbps, FDX */ + } + + return limit <= 0; +} + static int genmii_setup_aneg(struct mii_phy *phy, u32 advertise) { int ctl, adv; @@ -332,6 +373,33 @@ static int m88e1111_init(struct mii_phy *phy) return 0; } +static int m88e1112_init(struct mii_phy *phy) +{ + /* + * Marvell 88E1112 PHY needs to have the SGMII MAC + * interace (page 2) properly configured to + * communicate with the 460EX/GT GPCS interface. + */ + + u16 reg_short; + + pr_debug("%s: Marvell 88E1112 Ethernet\n", __func__); + + /* Set access to Page 2 */ + phy_write(phy, 0x16, 0x0002); + + phy_write(phy, 0x00, 0x0040); /* 1Gbps */ + reg_short = (u16)(phy_read(phy, 0x1a)); + reg_short |= 0x8000; /* bypass Auto-Negotiation */ + phy_write(phy, 0x1a, reg_short); + emac_mii_reset_phy(phy); /* reset MAC interface */ + + /* Reset access to Page 0 */ + phy_write(phy, 0x16, 0x0000); + + return 0; +} + static int et1011c_init(struct mii_phy *phy) { u16 reg_short; @@ -384,11 +452,27 @@ static struct mii_phy_def m88e1111_phy_def = { .ops = &m88e1111_phy_ops, }; +static struct mii_phy_ops m88e1112_phy_ops = { + .init = m88e1112_init, + .setup_aneg = genmii_setup_aneg, + .setup_forced = genmii_setup_forced, + .poll_link = genmii_poll_link, + .read_link = genmii_read_link +}; + +static struct mii_phy_def m88e1112_phy_def = { + .phy_id = 0x01410C90, + .phy_id_mask = 0x0ffffff0, + .name = "Marvell 88E1112 Ethernet", + .ops = &m88e1112_phy_ops, +}; + static struct mii_phy_def *mii_phy_table[] = { &et1011c_phy_def, &cis8201_phy_def, &bcm5248_phy_def, &m88e1111_phy_def, + &m88e1112_phy_def, &genmii_phy_def, NULL }; diff --git a/drivers/net/ibm_newemac/phy.h b/drivers/net/ibm_newemac/phy.h index 1b65c81f655..5d2bf4cbe50 100644 --- a/drivers/net/ibm_newemac/phy.h +++ b/drivers/net/ibm_newemac/phy.h @@ -57,6 +57,7 @@ struct mii_phy { or determined automaticaly */ int address; /* PHY address */ int mode; /* PHY mode */ + int gpcs_address; /* GPCS PHY address */ /* 1: autoneg enabled, 0: disabled */ int autoneg; @@ -81,5 +82,6 @@ struct mii_phy { */ int emac_mii_phy_probe(struct mii_phy *phy, int address); int emac_mii_reset_phy(struct mii_phy *phy); +int emac_mii_reset_gpcs(struct mii_phy *phy); #endif /* __IBM_NEWEMAC_PHY_H */ |