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authorJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-06-15 11:23:00 -0700
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-08-12 03:41:30 -0700
commitb13ad8f498793dc582b7f42f27b8f44490bd608d (patch)
treed0a1acf3e2d89fbc3bbf0d11fd2b60a41057a55c /drivers/net/ll_temac_mdio.c
parent63d24a0eb71b1ec5ed302816379aaf76eecb053c (diff)
xilinx/ll_temac: Move the Xilinx drivers
Move the Xilinx drivers into drivers/net/ethernet/xilinx/ and make the necessary Kconfig and Makefile changes. CC: John Williams <john.williams@petalogix.com> CC: "David H. Lynch Jr." <dhlii@dlasys.net> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ll_temac_mdio.c')
-rw-r--r--drivers/net/ll_temac_mdio.c122
1 files changed, 0 insertions, 122 deletions
diff --git a/drivers/net/ll_temac_mdio.c b/drivers/net/ll_temac_mdio.c
deleted file mode 100644
index 8cf9d4f56bb..00000000000
--- a/drivers/net/ll_temac_mdio.c
+++ /dev/null
@@ -1,122 +0,0 @@
-/*
- * MDIO bus driver for the Xilinx TEMAC device
- *
- * Copyright (c) 2009 Secret Lab Technologies, Ltd.
- */
-
-#include <linux/io.h>
-#include <linux/netdevice.h>
-#include <linux/mutex.h>
-#include <linux/phy.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
-#include <linux/of_address.h>
-#include <linux/slab.h>
-#include <linux/of_mdio.h>
-
-#include "ll_temac.h"
-
-/* ---------------------------------------------------------------------
- * MDIO Bus functions
- */
-static int temac_mdio_read(struct mii_bus *bus, int phy_id, int reg)
-{
- struct temac_local *lp = bus->priv;
- u32 rc;
-
- /* Write the PHY address to the MIIM Access Initiator register.
- * When the transfer completes, the PHY register value will appear
- * in the LSW0 register */
- mutex_lock(&lp->indirect_mutex);
- temac_iow(lp, XTE_LSW0_OFFSET, (phy_id << 5) | reg);
- rc = temac_indirect_in32(lp, XTE_MIIMAI_OFFSET);
- mutex_unlock(&lp->indirect_mutex);
-
- dev_dbg(lp->dev, "temac_mdio_read(phy_id=%i, reg=%x) == %x\n",
- phy_id, reg, rc);
-
- return rc;
-}
-
-static int temac_mdio_write(struct mii_bus *bus, int phy_id, int reg, u16 val)
-{
- struct temac_local *lp = bus->priv;
-
- dev_dbg(lp->dev, "temac_mdio_write(phy_id=%i, reg=%x, val=%x)\n",
- phy_id, reg, val);
-
- /* First write the desired value into the write data register
- * and then write the address into the access initiator register
- */
- mutex_lock(&lp->indirect_mutex);
- temac_indirect_out32(lp, XTE_MGTDR_OFFSET, val);
- temac_indirect_out32(lp, XTE_MIIMAI_OFFSET, (phy_id << 5) | reg);
- mutex_unlock(&lp->indirect_mutex);
-
- return 0;
-}
-
-int temac_mdio_setup(struct temac_local *lp, struct device_node *np)
-{
- struct mii_bus *bus;
- const u32 *bus_hz;
- int clk_div;
- int rc, size;
- struct resource res;
-
- /* Calculate a reasonable divisor for the clock rate */
- clk_div = 0x3f; /* worst-case default setting */
- bus_hz = of_get_property(np, "clock-frequency", &size);
- if (bus_hz && size >= sizeof(*bus_hz)) {
- clk_div = (*bus_hz) / (2500 * 1000 * 2) - 1;
- if (clk_div < 1)
- clk_div = 1;
- if (clk_div > 0x3f)
- clk_div = 0x3f;
- }
-
- /* Enable the MDIO bus by asserting the enable bit and writing
- * in the clock config */
- mutex_lock(&lp->indirect_mutex);
- temac_indirect_out32(lp, XTE_MC_OFFSET, 1 << 6 | clk_div);
- mutex_unlock(&lp->indirect_mutex);
-
- bus = mdiobus_alloc();
- if (!bus)
- return -ENOMEM;
-
- of_address_to_resource(np, 0, &res);
- snprintf(bus->id, MII_BUS_ID_SIZE, "%.8llx",
- (unsigned long long)res.start);
- bus->priv = lp;
- bus->name = "Xilinx TEMAC MDIO";
- bus->read = temac_mdio_read;
- bus->write = temac_mdio_write;
- bus->parent = lp->dev;
- bus->irq = lp->mdio_irqs; /* preallocated IRQ table */
-
- lp->mii_bus = bus;
-
- rc = of_mdiobus_register(bus, np);
- if (rc)
- goto err_register;
-
- mutex_lock(&lp->indirect_mutex);
- dev_dbg(lp->dev, "MDIO bus registered; MC:%x\n",
- temac_indirect_in32(lp, XTE_MC_OFFSET));
- mutex_unlock(&lp->indirect_mutex);
- return 0;
-
- err_register:
- mdiobus_free(bus);
- return rc;
-}
-
-void temac_mdio_teardown(struct temac_local *lp)
-{
- mdiobus_unregister(lp->mii_bus);
- kfree(lp->mii_bus->irq);
- mdiobus_free(lp->mii_bus);
- lp->mii_bus = NULL;
-}
-