If unsure, say N.
+config FSL_PQ_MDIO
+ tristate "Freescale PQ MDIO"
+ depends on FSL_SOC
+ select PHYLIB
+ help
+ This driver supports the MDIO bus used by the gianfar and UCC drivers.
+
config GIANFAR
tristate "Gianfar Ethernet"
depends on FSL_SOC
+ select FSL_PQ_MDIO
select PHYLIB
select CRC32
help
config UCC_GETH
tristate "Freescale QE Gigabit Ethernet"
depends on QUICC_ENGINE
+ select FSL_PQ_MDIO
select PHYLIB
help
This driver supports the Gigabit Ethernet mode of the QUICC Engine,
gianfar_driver-objs := gianfar.o \
gianfar_ethtool.o \
- gianfar_mii.o \
gianfar_sysfs.o
obj-$(CONFIG_UCC_GETH) += ucc_geth_driver.o
-ucc_geth_driver-objs := ucc_geth.o ucc_geth_mii.o ucc_geth_ethtool.o
+ucc_geth_driver-objs := ucc_geth.o ucc_geth_ethtool.o
+
+obj-$(CONFIG_FSL_PQ_MDIO) += fsl_pq_mdio.o
#
# link order important here
--- /dev/null
+/*
+ * Freescale PowerQUICC Ethernet Driver -- MIIM bus implementation
+ * Provides Bus interface for MIIM regs
+ *
+ * Author: Andy Fleming <afleming@freescale.com>
+ *
+ * Copyright (c) 2002-2004,2008 Freescale Semiconductor, Inc.
+ *
+ * Based on gianfar_mii.c and ucc_geth_mii.c (Li Yang, Kim Phillips)
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/unistd.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/spinlock.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/crc32.h>
+#include <linux/mii.h>
+#include <linux/phy.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/uaccess.h>
+#include <asm/ucc.h>
+
+#include "gianfar.h"
+#include "fsl_pq_mdio.h"
+
+/*
+ * Write value to the PHY at mii_id at register regnum,
+ * on the bus attached to the local interface, which may be different from the
+ * generic mdio bus (tied to a single interface), waiting until the write is
+ * done before returning. This is helpful in programming interfaces like
+ * the TBI which control interfaces like onchip SERDES and are always tied to
+ * the local mdio pins, which may not be the same as system mdio bus, used for
+ * controlling the external PHYs, for example.
+ */
+int fsl_pq_local_mdio_write(struct fsl_pq_mdio __iomem *regs, int mii_id,
+ int regnum, u16 value)
+{
+ /* Set the PHY address and the register address we want to write */
+ out_be32(®s->miimadd, (mii_id << 8) | regnum);
+
+ /* Write out the value we want */
+ out_be32(®s->miimcon, value);
+
+ /* Wait for the transaction to finish */
+ while (in_be32(®s->miimind) & MIIMIND_BUSY)
+ cpu_relax();
+
+ return 0;
+}
+
+/*
+ * Read the bus for PHY at addr mii_id, register regnum, and
+ * return the value. Clears miimcom first. All PHY operation
+ * done on the bus attached to the local interface,
+ * which may be different from the generic mdio bus
+ * This is helpful in programming interfaces like
+ * the TBI which, in turn, control interfaces like onchip SERDES
+ * and are always tied to the local mdio pins, which may not be the
+ * same as system mdio bus, used for controlling the external PHYs, for eg.
+ */
+int fsl_pq_local_mdio_read(struct fsl_pq_mdio __iomem *regs,
+ int mii_id, int regnum)
+{
+ u16 value;
+
+ /* Set the PHY address and the register address we want to read */
+ out_be32(®s->miimadd, (mii_id << 8) | regnum);
+
+ /* Clear miimcom, and then initiate a read */
+ out_be32(®s->miimcom, 0);
+ out_be32(®s->miimcom, MII_READ_COMMAND);
+
+ /* Wait for the transaction to finish */
+ while (in_be32(®s->miimind) & (MIIMIND_NOTVALID | MIIMIND_BUSY))
+ cpu_relax();
+
+ /* Grab the value of the register from miimstat */
+ value = in_be32(®s->miimstat);
+
+ return value;
+}
+
+/*
+ * Write value to the PHY at mii_id at register regnum,
+ * on the bus, waiting until the write is done before returning.
+ */
+int fsl_pq_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 value)
+{
+ struct fsl_pq_mdio __iomem *regs = (void __iomem *)bus->priv;
+
+ /* Write to the local MII regs */
+ return(fsl_pq_local_mdio_write(regs, mii_id, regnum, value));
+}
+
+/*
+ * Read the bus for PHY at addr mii_id, register regnum, and
+ * return the value. Clears miimcom first.
+ */
+int fsl_pq_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
+{
+ struct fsl_pq_mdio __iomem *regs = (void __iomem *)bus->priv;
+
+ /* Read the local MII regs */
+ return(fsl_pq_local_mdio_read(regs, mii_id, regnum));
+}
+
+/* Reset the MIIM registers, and wait for the bus to free */
+static int fsl_pq_mdio_reset(struct mii_bus *bus)
+{
+ struct fsl_pq_mdio __iomem *regs = (void __iomem *)bus->priv;
+ unsigned int timeout = PHY_INIT_TIMEOUT;
+
+ mutex_lock(&bus->mdio_lock);
+
+ /* Reset the management interface */
+ out_be32(®s->miimcfg, MIIMCFG_RESET);
+
+ /* Setup the MII Mgmt clock speed */
+ out_be32(®s->miimcfg, MIIMCFG_INIT_VALUE);
+
+ /* Wait until the bus is free */
+ while ((in_be32(®s->miimind) & MIIMIND_BUSY) && timeout--)
+ cpu_relax();
+
+ mutex_unlock(&bus->mdio_lock);
+
+ if(timeout == 0) {
+ printk(KERN_ERR "%s: The MII Bus is stuck!\n",
+ bus->name);
+ return -EBUSY;
+ }
+
+ return 0;
+}
+
+/* Allocate an array which provides irq #s for each PHY on the given bus */
+static int *create_irq_map(struct device_node *np)
+{
+ int *irqs;
+ int i;
+ struct device_node *child = NULL;
+
+ irqs = kcalloc(PHY_MAX_ADDR, sizeof(int), GFP_KERNEL);
+
+ if (!irqs)
+ return NULL;
+
+ for (i = 0; i < PHY_MAX_ADDR; i++)
+ irqs[i] = PHY_POLL;
+
+ while ((child = of_get_next_child(np, child)) != NULL) {
+ int irq = irq_of_parse_and_map(child, 0);
+ const u32 *id;
+
+ if (irq == NO_IRQ)
+ continue;
+
+ id = of_get_property(child, "reg", NULL);
+
+ if (!id)
+ continue;
+
+ if (*id < PHY_MAX_ADDR && *id >= 0)
+ irqs[*id] = irq;
+ else
+ printk(KERN_WARNING "%s: "
+ "%d is not a valid PHY address\n",
+ np->full_name, *id);
+ }
+
+ return irqs;
+}
+
+void fsl_pq_mdio_bus_name(char *name, struct device_node *np)
+{
+ const u32 *reg;
+
+ reg = of_get_property(np, "reg", NULL);
+
+ snprintf(name, MII_BUS_ID_SIZE, "%s@%x", np->name, reg ? *reg : 0);
+}
+
+/* Scan the bus in reverse, looking for an empty spot */
+static int fsl_pq_mdio_find_free(struct mii_bus *new_bus)
+{
+ int i;
+
+ for (i = PHY_MAX_ADDR; i > 0; i--) {
+ u32 phy_id;
+
+ if (get_phy_id(new_bus, i, &phy_id))
+ return -1;
+
+ if (phy_id == 0xffffffff)
+ break;
+ }
+
+ return i;
+}
+
+
+#ifdef CONFIG_GIANFAR
+static u32 __iomem *get_gfar_tbipa(struct fsl_pq_mdio __iomem *regs)
+{
+ struct gfar __iomem *enet_regs;
+
+ /*
+ * This is mildly evil, but so is our hardware for doing this.
+ * Also, we have to cast back to struct gfar because of
+ * definition weirdness done in gianfar.h.
+ */
+ enet_regs = (struct gfar __iomem *)
+ ((char __iomem *)regs - offsetof(struct gfar, gfar_mii_regs));
+
+ return &enet_regs->tbipa;
+}
+#endif
+
+
+#ifdef CONFIG_UCC_GETH
+static int get_ucc_id_for_range(u64 start, u64 end, u32 *ucc_id)
+{
+ struct device_node *np = NULL;
+ int err = 0;
+
+ for_each_compatible_node(np, NULL, "ucc_geth") {
+ struct resource tempres;
+
+ err = of_address_to_resource(np, 0, &tempres);
+ if (err)
+ continue;
+
+ /* if our mdio regs fall within this UCC regs range */
+ if ((start >= tempres.start) && (end <= tempres.end)) {
+ /* Find the id of the UCC */
+ const u32 *id;
+
+ id = of_get_property(np, "cell-index", NULL);
+ if (!id) {
+ id = of_get_property(np, "device-id", NULL);
+ if (!id)
+ continue;
+ }
+
+ *ucc_id = *id;
+
+ return 0;
+ }
+ }
+
+ if (err)
+ return err;
+ else
+ return -EINVAL;
+}
+#endif
+
+
+static int fsl_pq_mdio_probe(struct of_device *ofdev,
+ const struct of_device_id *match)
+{
+ struct device_node *np = ofdev->node;
+ struct device_node *tbi;
+ struct fsl_pq_mdio __iomem *regs;
+ u32 __iomem *tbipa;
+ struct mii_bus *new_bus;
+ int tbiaddr = -1;
+ u64 addr, size;
+ int err = 0;
+
+ new_bus = mdiobus_alloc();
+ if (NULL == new_bus)
+ return -ENOMEM;
+
+ new_bus->name = "Freescale PowerQUICC MII Bus",
+ new_bus->read = &fsl_pq_mdio_read,
+ new_bus->write = &fsl_pq_mdio_write,
+ new_bus->reset = &fsl_pq_mdio_reset,
+ fsl_pq_mdio_bus_name(new_bus->id, np);
+
+ /* Set the PHY base address */
+ addr = of_translate_address(np, of_get_address(np, 0, &size, NULL));
+ regs = ioremap(addr, size);
+
+ if (NULL == regs) {
+ err = -ENOMEM;
+ goto err_free_bus;
+ }
+
+ new_bus->priv = (void __force *)regs;
+
+ new_bus->irq = create_irq_map(np);
+
+ if (NULL == new_bus->irq) {
+ err = -ENOMEM;
+ goto err_unmap_regs;
+ }
+
+ new_bus->parent = &ofdev->dev;
+ dev_set_drvdata(&ofdev->dev, new_bus);
+
+ if (of_device_is_compatible(np, "fsl,gianfar-mdio") ||
+ of_device_is_compatible(np, "gianfar")) {
+#ifdef CONFIG_GIANFAR
+ tbipa = get_gfar_tbipa(regs);
+#else
+ err = -ENODEV;
+ goto err_free_irqs;
+#endif
+ } else if (of_device_is_compatible(np, "fsl,ucc-mdio") ||
+ of_device_is_compatible(np, "ucc_geth_phy")) {
+#ifdef CONFIG_UCC_GETH
+ u32 id;
+
+ tbipa = ®s->utbipar;
+
+ if ((err = get_ucc_id_for_range(addr, addr + size, &id)))
+ goto err_free_irqs;
+
+ ucc_set_qe_mux_mii_mng(id - 1);
+#else
+ err = -ENODEV;
+ goto err_free_irqs;
+#endif
+ } else {
+ err = -ENODEV;
+ goto err_free_irqs;
+ }
+
+ for_each_child_of_node(np, tbi) {
+ if (!strncmp(tbi->type, "tbi-phy", 8))
+ break;
+ }
+
+ if (tbi) {
+ const u32 *prop = of_get_property(tbi, "reg", NULL);
+
+ if (prop)
+ tbiaddr = *prop;
+ }
+
+ if (tbiaddr == -1) {
+ out_be32(tbipa, 0);
+
+ tbiaddr = fsl_pq_mdio_find_free(new_bus);
+ }
+
+ /*
+ * We define TBIPA at 0 to be illegal, opting to fail for boards that
+ * have PHYs at 1-31, rather than change tbipa and rescan.
+ */
+ if (tbiaddr == 0) {
+ err = -EBUSY;
+
+ goto err_free_irqs;
+ }
+
+ out_be32(tbipa, tbiaddr);
+
+ /*
+ * The TBIPHY-only buses will find PHYs at every address,
+ * so we mask them all but the TBI
+ */
+ if (!of_device_is_compatible(np, "fsl,gianfar-mdio"))
+ new_bus->phy_mask = ~(1 << tbiaddr);
+
+ err = mdiobus_register(new_bus);
+
+ if (err) {
+ printk (KERN_ERR "%s: Cannot register as MDIO bus\n",
+ new_bus->name);
+ goto err_free_irqs;
+ }
+
+ return 0;
+
+err_free_irqs:
+ kfree(new_bus->irq);
+err_unmap_regs:
+ iounmap(regs);
+err_free_bus:
+ kfree(new_bus);
+
+ return err;
+}
+
+
+static int fsl_pq_mdio_remove(struct of_device *ofdev)
+{
+ struct device *device = &ofdev->dev;
+ struct mii_bus *bus = dev_get_drvdata(device);
+
+ mdiobus_unregister(bus);
+
+ dev_set_drvdata(device, NULL);
+
+ iounmap((void __iomem *)bus->priv);
+ bus->priv = NULL;
+ mdiobus_free(bus);
+
+ return 0;
+}
+
+static struct of_device_id fsl_pq_mdio_match[] = {
+ {
+ .type = "mdio",
+ .compatible = "ucc_geth_phy",
+ },
+ {
+ .type = "mdio",
+ .compatible = "gianfar",
+ },
+ {
+ .compatible = "fsl,ucc-mdio",
+ },
+ {
+ .compatible = "fsl,gianfar-tbi",
+ },
+ {
+ .compatible = "fsl,gianfar-mdio",
+ },
+ {},
+};
+
+static struct of_platform_driver fsl_pq_mdio_driver = {
+ .name = "fsl-pq_mdio",
+ .probe = fsl_pq_mdio_probe,
+ .remove = fsl_pq_mdio_remove,
+ .match_table = fsl_pq_mdio_match,
+};
+
+int __init fsl_pq_mdio_init(void)
+{
+ return of_register_platform_driver(&fsl_pq_mdio_driver);
+}
+
+void fsl_pq_mdio_exit(void)
+{
+ of_unregister_platform_driver(&fsl_pq_mdio_driver);
+}
+subsys_initcall_sync(fsl_pq_mdio_init);
+module_exit(fsl_pq_mdio_exit);
--- /dev/null
+/*
+ * Freescale PowerQUICC MDIO Driver -- MII Management Bus Implementation
+ * Driver for the MDIO bus controller on Freescale PowerQUICC processors
+ *
+ * Author: Andy Fleming
+ *
+ * Copyright (c) 2002-2004,2008 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+#ifndef __FSL_PQ_MDIO_H
+#define __FSL_PQ_MDIO_H
+
+#define MIIMIND_BUSY 0x00000001
+#define MIIMIND_NOTVALID 0x00000004
+#define MIIMCFG_INIT_VALUE 0x00000007
+#define MIIMCFG_RESET 0x80000000
+
+#define MII_READ_COMMAND 0x00000001
+
+struct fsl_pq_mdio {
+ u32 miimcfg; /* MII management configuration reg */
+ u32 miimcom; /* MII management command reg */
+ u32 miimadd; /* MII management address reg */
+ u32 miimcon; /* MII management control reg */
+ u32 miimstat; /* MII management status reg */
+ u32 miimind; /* MII management indication reg */
+ u8 reserved[28]; /* Space holder */
+ u32 utbipar; /* TBI phy address reg (only on UCC) */
+} __attribute__ ((packed));
+
+
+int fsl_pq_mdio_read(struct mii_bus *bus, int mii_id, int regnum);
+int fsl_pq_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 value);
+int fsl_pq_local_mdio_write(struct fsl_pq_mdio __iomem *regs, int mii_id,
+ int regnum, u16 value);
+int fsl_pq_local_mdio_read(struct fsl_pq_mdio __iomem *regs, int mii_id, int regnum);
+int __init fsl_pq_mdio_init(void);
+void fsl_pq_mdio_exit(void);
+void fsl_pq_mdio_bus_name(char *name, struct device_node *np);
+#endif /* FSL_PQ_MDIO_H */
#include <linux/of.h>
#include "gianfar.h"
-#include "gianfar_mii.h"
+#include "fsl_pq_mdio.h"
#define TX_TIMEOUT (1*HZ)
#undef BRIEF_GFAR_ERRORS
of_node_put(phy);
of_node_put(mdio);
- gfar_mdio_bus_name(bus_name, mdio);
+ fsl_pq_mdio_bus_name(bus_name, mdio);
snprintf(priv->phy_bus_id, sizeof(priv->phy_bus_id), "%s:%02x",
bus_name, *id);
}
priv->hash_width = 8;
priv->hash_regs[0] = &priv->regs->gaddr0;
- priv->hash_regs[1] = &priv->regs->gaddr1;
+ priv->hash_regs[1] = &priv->regs->gaddr1;
priv->hash_regs[2] = &priv->regs->gaddr2;
priv->hash_regs[3] = &priv->regs->gaddr3;
priv->hash_regs[4] = &priv->regs->gaddr4;
free_irq(priv->interruptTransmit, dev);
free_irq(priv->interruptReceive, dev);
} else {
- free_irq(priv->interruptTransmit, dev);
+ free_irq(priv->interruptTransmit, dev);
}
free_skb_resources(priv);
skb_put(skb, pkt_len);
dev->stats.rx_bytes += pkt_len;
+ if (in_irq() || irqs_disabled())
+ printk("Interrupt problem!\n");
gfar_process_frame(dev, skb, amount_pull);
} else {
static int __init gfar_init(void)
{
- int err = gfar_mdio_init();
-
- if (err)
- return err;
-
- err = of_register_platform_driver(&gfar_driver);
-
- if (err)
- gfar_mdio_exit();
-
- return err;
+ return of_register_platform_driver(&gfar_driver);
}
static void __exit gfar_exit(void)
{
of_unregister_platform_driver(&gfar_driver);
- gfar_mdio_exit();
}
module_init(gfar_init);
#include <linux/workqueue.h>
#include <linux/ethtool.h>
#include <linux/fsl_devices.h>
-#include "gianfar_mii.h"
/* The maximum number of packets to be handled in one call of gfar_poll */
#define GFAR_DEV_WEIGHT 64
#define DEFAULT_RX_COALESCE 0
#define DEFAULT_RXCOUNT 0
-#define MIIMCFG_INIT_VALUE 0x00000007
-#define MIIMCFG_RESET 0x80000000
-#define MIIMIND_BUSY 0x00000001
+#define GFAR_SUPPORTED (SUPPORTED_10baseT_Half \
+ | SUPPORTED_10baseT_Full \
+ | SUPPORTED_100baseT_Half \
+ | SUPPORTED_100baseT_Full \
+ | SUPPORTED_Autoneg \
+ | SUPPORTED_MII)
/* TBI register addresses */
#define MII_TBICON 0x11
extern void gfar_phy_test(struct mii_bus *bus, struct phy_device *phydev,
int enable, u32 regnum, u32 read);
void gfar_init_sysfs(struct net_device *dev);
-int gfar_local_mdio_write(struct gfar_mii __iomem *regs, int mii_id,
- int regnum, u16 value);
-int gfar_local_mdio_read(struct gfar_mii __iomem *regs, int mii_id, int regnum);
extern const struct ethtool_ops gfar_ethtool_ops;
+++ /dev/null
-/*
- * drivers/net/gianfar_mii.h
- *
- * Gianfar Ethernet Driver -- MII Management Bus Implementation
- * Driver for the MDIO bus controller in the Gianfar register space
- *
- * Author: Andy Fleming
- * Maintainer: Kumar Gala
- *
- * Copyright (c) 2002-2004 Freescale Semiconductor, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-#ifndef __GIANFAR_MII_H
-#define __GIANFAR_MII_H
-
-struct gfar_private; /* forward ref */
-
-#define MIIMIND_BUSY 0x00000001
-#define MIIMIND_NOTVALID 0x00000004
-
-#define MII_READ_COMMAND 0x00000001
-
-#define GFAR_SUPPORTED (SUPPORTED_10baseT_Half \
- | SUPPORTED_10baseT_Full \
- | SUPPORTED_100baseT_Half \
- | SUPPORTED_100baseT_Full \
- | SUPPORTED_Autoneg \
- | SUPPORTED_MII)
-
-struct gfar_mii {
- u32 miimcfg; /* 0x.520 - MII Management Config Register */
- u32 miimcom; /* 0x.524 - MII Management Command Register */
- u32 miimadd; /* 0x.528 - MII Management Address Register */
- u32 miimcon; /* 0x.52c - MII Management Control Register */
- u32 miimstat; /* 0x.530 - MII Management Status Register */
- u32 miimind; /* 0x.534 - MII Management Indicator Register */
-};
-
-int gfar_mdio_read(struct mii_bus *bus, int mii_id, int regnum);
-int gfar_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 value);
-int gfar_local_mdio_write(struct gfar_mii __iomem *regs, int mii_id,
- int regnum, u16 value);
-int gfar_local_mdio_read(struct gfar_mii __iomem *regs, int mii_id, int regnum);
-struct mii_bus *gfar_get_miibus(const struct gfar_private *priv);
-int __init gfar_mdio_init(void);
-void gfar_mdio_exit(void);
-
-void gfar_mdio_bus_name(char *name, struct device_node *np);
-#endif /* GIANFAR_PHY_H */
#include <asm/ucc_fast.h>
#include "ucc_geth.h"
-#include "ucc_geth_mii.h"
+#include "fsl_pq_mdio.h"
#undef DEBUG
of_node_put(phy);
of_node_put(mdio);
- uec_mdio_bus_name(bus_name, mdio);
+ fsl_pq_mdio_bus_name(bus_name, mdio);
snprintf(phy_id, sizeof(phy_id), "%s:%02x",
bus_name, *id);
if (err)
return -1;
- snprintf(ug_info->mdio_bus, MII_BUS_ID_SIZE, "%x", res.start);
+ snprintf(ug_info->mdio_bus, MII_BUS_ID_SIZE, "%x",
+ res.start&0xfffff);
}
/* get the phy interface type, or default to MII */
{
int i, ret;
- ret = uec_mdio_init();
-
- if (ret)
- return ret;
-
if (netif_msg_drv(&debug))
printk(KERN_INFO "ucc_geth: " DRV_DESC "\n");
for (i = 0; i < 8; i++)
ret = of_register_platform_driver(&ucc_geth_driver);
- if (ret)
- uec_mdio_exit();
-
return ret;
}
static void __exit ucc_geth_exit(void)
{
of_unregister_platform_driver(&ucc_geth_driver);
- uec_mdio_exit();
}
module_init(ucc_geth_init);
#include <asm/ucc.h>
#include <asm/ucc_fast.h>
-#include "ucc_geth_mii.h"
-
#define DRV_DESC "QE UCC Gigabit Ethernet Controller"
#define DRV_NAME "ucc_geth"
#define DRV_VERSION "1.1"
#define UCCE_RX_EVENTS (UCCE_RXF | UCC_GETH_UCCE_BSY)
#define UCCE_TX_EVENTS (UCCE_TXB | UCC_GETH_UCCE_TXE)
+/* TBI defines */
+#define ENET_TBI_MII_CR 0x00 /* Control */
+#define ENET_TBI_MII_SR 0x01 /* Status */
+#define ENET_TBI_MII_ANA 0x04 /* AN advertisement */
+#define ENET_TBI_MII_ANLPBPA 0x05 /* AN link partner base page ability */
+#define ENET_TBI_MII_ANEX 0x06 /* AN expansion */
+#define ENET_TBI_MII_ANNPT 0x07 /* AN next page transmit */
+#define ENET_TBI_MII_ANLPANP 0x08 /* AN link partner ability next page */
+#define ENET_TBI_MII_EXST 0x0F /* Extended status */
+#define ENET_TBI_MII_JD 0x10 /* Jitter diagnostics */
+#define ENET_TBI_MII_TBICON 0x11 /* TBI control */
+
/* UCC GETH MACCFG1 (MAC Configuration 1 Register) */
#define MACCFG1_FLOW_RX 0x00000020 /* Flow Control
Rx */
#include <asm/types.h>
#include "ucc_geth.h"
-#include "ucc_geth_mii.h"
static char hw_stat_gstrings[][ETH_GSTRING_LEN] = {
"tx-64-frames",
+++ /dev/null
-/*
- * drivers/net/ucc_geth_mii.c
- *
- * QE UCC Gigabit Ethernet Driver -- MII Management Bus Implementation
- * Provides Bus interface for MII Management regs in the UCC register space
- *
- * Copyright (C) 2007 Freescale Semiconductor, Inc.
- *
- * Authors: Li Yang <leoli@freescale.com>
- * Kim Phillips <kim.phillips@freescale.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/unistd.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/spinlock.h>
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/crc32.h>
-#include <linux/mii.h>
-#include <linux/phy.h>
-#include <linux/fsl_devices.h>
-#include <linux/of_platform.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/uaccess.h>
-#include <asm/ucc.h>
-
-#include "ucc_geth_mii.h"
-#include "ucc_geth.h"
-
-#define DEBUG
-#ifdef DEBUG
-#define vdbg(format, arg...) printk(KERN_DEBUG , format "\n" , ## arg)
-#else
-#define vdbg(format, arg...) do {} while(0)
-#endif
-
-#define MII_DRV_DESC "QE UCC Ethernet Controller MII Bus"
-#define MII_DRV_NAME "fsl-uec_mdio"
-
-/* Write value to the PHY for this device to the register at regnum, */
-/* waiting until the write is done before it returns. All PHY */
-/* configuration has to be done through the master UEC MIIM regs */
-int uec_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 value)
-{
- struct ucc_mii_mng __iomem *regs = (void __iomem *)bus->priv;
-
- /* Setting up the MII Mangement Address Register */
- out_be32(®s->miimadd,
- (mii_id << MIIMADD_PHY_ADDRESS_SHIFT) | regnum);
-
- /* Setting up the MII Mangement Control Register with the value */
- out_be32(®s->miimcon, value);
-
- /* Wait till MII management write is complete */
- while ((in_be32(®s->miimind)) & MIIMIND_BUSY)
- cpu_relax();
-
- return 0;
-}
-
-/* Reads from register regnum in the PHY for device dev, */
-/* returning the value. Clears miimcom first. All PHY */
-/* configuration has to be done through the TSEC1 MIIM regs */
-int uec_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
-{
- struct ucc_mii_mng __iomem *regs = (void __iomem *)bus->priv;
- u16 value;
-
- /* Setting up the MII Mangement Address Register */
- out_be32(®s->miimadd,
- (mii_id << MIIMADD_PHY_ADDRESS_SHIFT) | regnum);
-
- /* Clear miimcom, perform an MII management read cycle */
- out_be32(®s->miimcom, 0);
- out_be32(®s->miimcom, MIIMCOM_READ_CYCLE);
-
- /* Wait till MII management write is complete */
- while ((in_be32(®s->miimind)) & (MIIMIND_BUSY | MIIMIND_NOT_VALID))
- cpu_relax();
-
- /* Read MII management status */
- value = in_be32(®s->miimstat);
-
- return value;
-}
-
-/* Reset the MIIM registers, and wait for the bus to free */
-static int uec_mdio_reset(struct mii_bus *bus)
-{
- struct ucc_mii_mng __iomem *regs = (void __iomem *)bus->priv;
- unsigned int timeout = PHY_INIT_TIMEOUT;
-
- mutex_lock(&bus->mdio_lock);
-
- /* Reset the management interface */
- out_be32(®s->miimcfg, MIIMCFG_RESET_MANAGEMENT);
-
- /* Setup the MII Mgmt clock speed */
- out_be32(®s->miimcfg, MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_112);
-
- /* Wait until the bus is free */
- while ((in_be32(®s->miimind) & MIIMIND_BUSY) && timeout--)
- cpu_relax();
-
- mutex_unlock(&bus->mdio_lock);
-
- if (timeout <= 0) {
- printk(KERN_ERR "%s: The MII Bus is stuck!\n", bus->name);
- return -EBUSY;
- }
-
- return 0;
-}
-
-static int uec_mdio_probe(struct of_device *ofdev, const struct of_device_id *match)
-{
- struct device *device = &ofdev->dev;
- struct device_node *np = ofdev->node, *tempnp = NULL;
- struct device_node *child = NULL;
- struct ucc_mii_mng __iomem *regs;
- struct mii_bus *new_bus;
- struct resource res;
- int k, err = 0;
-
- new_bus = mdiobus_alloc();
- if (NULL == new_bus)
- return -ENOMEM;
-
- new_bus->name = "UCC Ethernet Controller MII Bus";
- new_bus->read = &uec_mdio_read;
- new_bus->write = &uec_mdio_write;
- new_bus->reset = &uec_mdio_reset;
-
- memset(&res, 0, sizeof(res));
-
- err = of_address_to_resource(np, 0, &res);
- if (err)
- goto reg_map_fail;
-
- uec_mdio_bus_name(new_bus->id, np);
-
- new_bus->irq = kmalloc(32 * sizeof(int), GFP_KERNEL);
-
- if (NULL == new_bus->irq) {
- err = -ENOMEM;
- goto reg_map_fail;
- }
-
- for (k = 0; k < 32; k++)
- new_bus->irq[k] = PHY_POLL;
-
- while ((child = of_get_next_child(np, child)) != NULL) {
- int irq = irq_of_parse_and_map(child, 0);
- if (irq != NO_IRQ) {
- const u32 *id = of_get_property(child, "reg", NULL);
- new_bus->irq[*id] = irq;
- }
- }
-
- /* Set the base address */
- regs = ioremap(res.start, sizeof(struct ucc_mii_mng));
-
- if (NULL == regs) {
- err = -ENOMEM;
- goto ioremap_fail;
- }
-
- new_bus->priv = (void __force *)regs;
-
- new_bus->parent = device;
- dev_set_drvdata(device, new_bus);
-
- /* Read MII management master from device tree */
- while ((tempnp = of_find_compatible_node(tempnp, "network", "ucc_geth"))
- != NULL) {
- struct resource tempres;
-
- err = of_address_to_resource(tempnp, 0, &tempres);
- if (err)
- goto bus_register_fail;
-
- /* if our mdio regs fall within this UCC regs range */
- if ((res.start >= tempres.start) &&
- (res.end <= tempres.end)) {
- /* set this UCC to be the MII master */
- const u32 *id;
-
- id = of_get_property(tempnp, "cell-index", NULL);
- if (!id) {
- id = of_get_property(tempnp, "device-id", NULL);
- if (!id)
- goto bus_register_fail;
- }
-
- ucc_set_qe_mux_mii_mng(*id - 1);
-
- /* assign the TBI an address which won't
- * conflict with the PHYs */
- out_be32(®s->utbipar, UTBIPAR_INIT_TBIPA);
- break;
- }
- }
-
- err = mdiobus_register(new_bus);
- if (0 != err) {
- printk(KERN_ERR "%s: Cannot register as MDIO bus\n",
- new_bus->name);
- goto bus_register_fail;
- }
-
- return 0;
-
-bus_register_fail:
- iounmap(regs);
-ioremap_fail:
- kfree(new_bus->irq);
-reg_map_fail:
- mdiobus_free(new_bus);
-
- return err;
-}
-
-static int uec_mdio_remove(struct of_device *ofdev)
-{
- struct device *device = &ofdev->dev;
- struct mii_bus *bus = dev_get_drvdata(device);
-
- mdiobus_unregister(bus);
-
- dev_set_drvdata(device, NULL);
-
- iounmap((void __iomem *)bus->priv);
- bus->priv = NULL;
- mdiobus_free(bus);
-
- return 0;
-}
-
-static struct of_device_id uec_mdio_match[] = {
- {
- .type = "mdio",
- .compatible = "ucc_geth_phy",
- },
- {
- .compatible = "fsl,ucc-mdio",
- },
- {},
-};
-
-static struct of_platform_driver uec_mdio_driver = {
- .name = MII_DRV_NAME,
- .probe = uec_mdio_probe,
- .remove = uec_mdio_remove,
- .match_table = uec_mdio_match,
-};
-
-int __init uec_mdio_init(void)
-{
- return of_register_platform_driver(&uec_mdio_driver);
-}
-
-/* called from __init ucc_geth_init, therefore can not be __exit */
-void uec_mdio_exit(void)
-{
- of_unregister_platform_driver(&uec_mdio_driver);
-}
-
-void uec_mdio_bus_name(char *name, struct device_node *np)
-{
- const u32 *reg;
-
- reg = of_get_property(np, "reg", NULL);
-
- snprintf(name, MII_BUS_ID_SIZE, "%s@%x", np->name, reg ? *reg : 0);
-}
-
+++ /dev/null
-/*
- * drivers/net/ucc_geth_mii.h
- *
- * QE UCC Gigabit Ethernet Driver -- MII Management Bus Implementation
- * Provides Bus interface for MII Management regs in the UCC register space
- *
- * Copyright (C) 2007 Freescale Semiconductor, Inc.
- *
- * Authors: Li Yang <leoli@freescale.com>
- * Kim Phillips <kim.phillips@freescale.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-#ifndef __UEC_MII_H
-#define __UEC_MII_H
-
-/* UCC GETH MIIMCFG (MII Management Configuration Register) */
-#define MIIMCFG_RESET_MANAGEMENT 0x80000000 /* Reset
- management */
-#define MIIMCFG_NO_PREAMBLE 0x00000010 /* Preamble
- suppress */
-#define MIIMCFG_CLOCK_DIVIDE_SHIFT (31 - 31) /* clock divide
- << shift */
-#define MIIMCFG_CLOCK_DIVIDE_MAX 0xf /* max clock divide */
-#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_2 0x00000000
-#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_4 0x00000001
-#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_6 0x00000002
-#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_8 0x00000003
-#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_10 0x00000004
-#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_14 0x00000005
-#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_16 0x00000008
-#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_20 0x00000006
-#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_28 0x00000007
-#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_32 0x00000009
-#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_48 0x0000000a
-#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_64 0x0000000b
-#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_80 0x0000000c
-#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_112 0x0000000d
-#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_160 0x0000000e
-#define MIIMCFG_MANAGEMENT_CLOCK_DIVIDE_BY_224 0x0000000f
-
-/* UCC GETH MIIMCOM (MII Management Command Register) */
-#define MIIMCOM_SCAN_CYCLE 0x00000002 /* Scan cycle */
-#define MIIMCOM_READ_CYCLE 0x00000001 /* Read cycle */
-
-/* UCC GETH MIIMADD (MII Management Address Register) */
-#define MIIMADD_PHY_ADDRESS_SHIFT (31 - 23) /* PHY Address
- << shift */
-#define MIIMADD_PHY_REGISTER_SHIFT (31 - 31) /* PHY Register
- << shift */
-
-/* UCC GETH MIIMCON (MII Management Control Register) */
-#define MIIMCON_PHY_CONTROL_SHIFT (31 - 31) /* PHY Control
- << shift */
-#define MIIMCON_PHY_STATUS_SHIFT (31 - 31) /* PHY Status
- << shift */
-
-/* UCC GETH MIIMIND (MII Management Indicator Register) */
-#define MIIMIND_NOT_VALID 0x00000004 /* Not valid */
-#define MIIMIND_SCAN 0x00000002 /* Scan in
- progress */
-#define MIIMIND_BUSY 0x00000001
-
-/* Initial TBI Physical Address */
-#define UTBIPAR_INIT_TBIPA 0x1f
-
-struct ucc_mii_mng {
- u32 miimcfg; /* MII management configuration reg */
- u32 miimcom; /* MII management command reg */
- u32 miimadd; /* MII management address reg */
- u32 miimcon; /* MII management control reg */
- u32 miimstat; /* MII management status reg */
- u32 miimind; /* MII management indication reg */
- u8 notcare[28]; /* Space holder */
- u32 utbipar; /* TBI phy address reg */
-} __attribute__ ((packed));
-
-/* TBI / MII Set Register */
-enum enet_tbi_mii_reg {
- ENET_TBI_MII_CR = 0x00, /* Control */
- ENET_TBI_MII_SR = 0x01, /* Status */
- ENET_TBI_MII_ANA = 0x04, /* AN advertisement */
- ENET_TBI_MII_ANLPBPA = 0x05, /* AN link partner base page ability */
- ENET_TBI_MII_ANEX = 0x06, /* AN expansion */
- ENET_TBI_MII_ANNPT = 0x07, /* AN next page transmit */
- ENET_TBI_MII_ANLPANP = 0x08, /* AN link partner ability next page */
- ENET_TBI_MII_EXST = 0x0F, /* Extended status */
- ENET_TBI_MII_JD = 0x10, /* Jitter diagnostics */
- ENET_TBI_MII_TBICON = 0x11 /* TBI control */
-};
-
-int uec_mdio_read(struct mii_bus *bus, int mii_id, int regnum);
-int uec_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 value);
-int __init uec_mdio_init(void);
-void uec_mdio_exit(void);
-void uec_mdio_bus_name(char *name, struct device_node *np);
-#endif /* __UEC_MII_H */
git://ftp.safe.ca / safe / jmp / linux-2.6 / commitdiff