[PATCH 0/7] fs_enet patches

[PATCH 0/7] fs_enet patches

[Scott Wood]

The following patchset includes several updates for the fs_enet driver,
the most prominent being conversion to an of_platform device (with
platform_device code remaining until arch/ppc goes away).  It also
includes a generic MDIO bitbang library, and converts fs_enet to use it.

I have a powerpc patch (ep8248e board support) that depends on the MDIO
bitbang library, so it may be better to ack them for Paul to pick up --
but if not, I can postpone the ep8248e patch until the merge window.

-Scott

[PATCH 1/7] Generic bitbanged MDIO library

[Scott Wood]

Previously, bitbanged MDIO was only supported in individual
hardware-specific drivers.  This code factors out the higher level
protocol implementation, reducing the hardware-specific portion to
functions setting direction, data, and clock.

Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 drivers/net/phy/Kconfig        |    9 ++
 drivers/net/phy/Makefile       |    1 +
 drivers/net/phy/mdio-bitbang.c |  187 ++++++++++++++++++++++++++++++++++++++++
 include/linux/mdio-bitbang.h   |   42 +++++++++
 4 files changed, 239 insertions(+), 0 deletions(-)
 create mode 100644 drivers/net/phy/mdio-bitbang.c
 create mode 100644 include/linux/mdio-bitbang.h

diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index dd09011..72a98dd 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -76,4 +76,13 @@ config FIXED_MII_100_FDX
 	bool "Emulation for 100M Fdx fixed PHY behavior"
 	depends on FIXED_PHY
 
+config MDIO_BITBANG
+	tristate "Support for bitbanged MDIO buses"
+	help
+	  This module implements the MDIO bus protocol in software,
+	  for use by low level drivers that export the ability to
+	  drive the relevant pins.
+
+	  If in doubt, say N.
+
 endif # PHYLIB
diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
index 8885650..3d6cc7b 100644
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -13,3 +13,4 @@ obj-$(CONFIG_VITESSE_PHY)	+= vitesse.o
 obj-$(CONFIG_BROADCOM_PHY)	+= broadcom.o
 obj-$(CONFIG_ICPLUS_PHY)	+= icplus.o
 obj-$(CONFIG_FIXED_PHY)		+= fixed.o
+obj-$(CONFIG_MDIO_BITBANG)	+= mdio-bitbang.o
diff --git a/drivers/net/phy/mdio-bitbang.c b/drivers/net/phy/mdio-bitbang.c
new file mode 100644
index 0000000..9bfc9ce
--- /dev/null
+++ b/drivers/net/phy/mdio-bitbang.c
@@ -0,0 +1,187 @@
+/*
+ * Bitbanged MDIO support.
+ *
+ * Author: Scott Wood <scottwood@freescale.com>
+ * Copyright (c) 2007 Freescale Semiconductor
+ *
+ * Based on CPM2 MDIO code which is:
+ *
+ * Copyright (c) 2003 Intracom S.A.
+ *  by Pantelis Antoniou <panto@intracom.gr>
+ *
+ * 2005 (c) MontaVista Software, Inc.
+ * Vitaly Bordug <vbordug@ru.mvista.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <linux/module.h>
+#include <linux/mdio-bitbang.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/delay.h>
+
+#define MDIO_READ 1
+#define MDIO_WRITE 0
+
+#define MDIO_SETUP_TIME 10
+#define MDIO_HOLD_TIME 10
+
+/* Minimum MDC period is 400 ns, plus some margin for error */
+#define MDIO_DELAY 250
+
+/* The PHY may take up to 300 ns to produce data, plus some margin
+ * for error.
+ */
+#define MDIO_READ_DELAY 350
+
+/* MDIO must already be configured as output. */
+static void mdio_bitbang_send_bit(struct mdio_bitbang_ctrl *ctrl, int val)
+{
+	const struct mdio_bitbang_ops *ops = ctrl->ops;
+
+	ops->set_mdio_data(ctrl, val);
+	ndelay(MDIO_DELAY);
+	ops->set_mdc(ctrl, 1);
+	ndelay(MDIO_DELAY);
+	ops->set_mdc(ctrl, 0);
+}
+
+/* MDIO must already be configured as input. */
+static int mdio_bitbang_get_bit(struct mdio_bitbang_ctrl *ctrl)
+{
+	const struct mdio_bitbang_ops *ops = ctrl->ops;
+
+	ndelay(MDIO_DELAY);
+	ops->set_mdc(ctrl, 1);
+	ndelay(MDIO_READ_DELAY);
+	ops->set_mdc(ctrl, 0);
+
+	return ops->get_mdio_data(ctrl);
+}
+
+/* MDIO must already be configured as output. */
+static void mdio_bitbang_send_num(struct mdio_bitbang_ctrl *ctrl,
+                                  u16 val, int bits)
+{
+	int i;
+
+	for (i = bits - 1; i >= 0; i--)
+		mdio_bitbang_send_bit(ctrl, (val >> i) & 1);
+}
+
+/* MDIO must already be configured as input. */
+static u16 mdio_bitbang_get_num(struct mdio_bitbang_ctrl *ctrl, int bits)
+{
+	int i;
+	u16 ret = 0;
+
+	for (i = bits - 1; i >= 0; i--) {
+		ret <<= 1;
+		ret |= mdio_bitbang_get_bit(ctrl);
+	}
+
+	return ret;
+}
+
+/* Utility to send the preamble, address, and
+ * register (common to read and write).
+ */
+static void mdio_bitbang_cmd(struct mdio_bitbang_ctrl *ctrl,
+                             int read, u8 phy, u8 reg)
+{
+	const struct mdio_bitbang_ops *ops = ctrl->ops;
+	int i;
+
+	ops->set_mdio_dir(ctrl, 1);
+
+	/*
+	 * Send a 32 bit preamble ('1's) with an extra '1' bit for good
+	 * measure.  The IEEE spec says this is a PHY optional
+	 * requirement.  The AMD 79C874 requires one after power up and
+	 * one after a MII communications error.  This means that we are
+	 * doing more preambles than we need, but it is safer and will be
+	 * much more robust.
+	 */
+
+	for (i = 0; i < 32; i++)
+		mdio_bitbang_send_bit(ctrl, 1);
+
+	/* send the start bit (01) and the read opcode (10) or write (10) */
+	mdio_bitbang_send_bit(ctrl, 0);
+	mdio_bitbang_send_bit(ctrl, 1);
+	mdio_bitbang_send_bit(ctrl, read);
+	mdio_bitbang_send_bit(ctrl, !read);
+
+	mdio_bitbang_send_num(ctrl, phy, 5);
+	mdio_bitbang_send_num(ctrl, reg, 5);
+}
+
+
+static int mdio_bitbang_read(struct mii_bus *bus, int phy, int reg)
+{
+	struct mdio_bitbang_ctrl *ctrl = bus->priv;
+	int ret, i;
+
+	mdio_bitbang_cmd(ctrl, MDIO_READ, phy, reg);
+	ctrl->ops->set_mdio_dir(ctrl, 0);
+
+	/* check the turnaround bit: the PHY should be driving it to zero */
+	if (mdio_bitbang_get_bit(ctrl) != 0) {
+		/* PHY didn't drive TA low -- flush any bits it
+		 * may be trying to send.
+		 */
+		for (i = 0; i < 32; i++)
+			mdio_bitbang_get_bit(ctrl);
+
+		return 0xffff;
+	}
+
+	ret = mdio_bitbang_get_num(ctrl, 16);
+	mdio_bitbang_get_bit(ctrl);
+	return ret;
+}
+
+static int mdio_bitbang_write(struct mii_bus *bus, int phy, int reg, u16 val)
+{
+	struct mdio_bitbang_ctrl *ctrl = bus->priv;
+
+	mdio_bitbang_cmd(ctrl, MDIO_WRITE, phy, reg);
+
+	/* send the turnaround (10) */
+	mdio_bitbang_send_bit(ctrl, 1);
+	mdio_bitbang_send_bit(ctrl, 0);
+
+	mdio_bitbang_send_num(ctrl, val, 16);
+
+	ctrl->ops->set_mdio_dir(ctrl, 0);
+	mdio_bitbang_get_bit(ctrl);
+	return 0;
+}
+
+struct mii_bus *alloc_mdio_bitbang(struct mdio_bitbang_ctrl *ctrl)
+{
+	struct mii_bus *bus;
+
+	bus = kzalloc(sizeof(struct mii_bus), GFP_KERNEL);
+	if (!bus)
+		return NULL;
+
+	__module_get(ctrl->ops->owner);
+
+	bus->read = mdio_bitbang_read;
+	bus->write = mdio_bitbang_write;
+	bus->priv = ctrl;
+
+	return bus;
+}
+
+void free_mdio_bitbang(struct mii_bus *bus)
+{
+	struct mdio_bitbang_ctrl *ctrl = bus->priv;
+
+	module_put(ctrl->ops->owner);
+	kfree(bus);
+}
diff --git a/include/linux/mdio-bitbang.h b/include/linux/mdio-bitbang.h
new file mode 100644
index 0000000..63a11dd
--- /dev/null
+++ b/include/linux/mdio-bitbang.h
@@ -0,0 +1,42 @@
+#ifndef __LINUX_MDIO_BITBANG_H
+#define __LINUX_MDIO_BITBANG_H
+
+#include <linux/phy.h>
+#include <linux/module.h>
+
+struct mdio_bitbang_ctrl;
+
+struct mdio_bitbang_ops {
+	struct module *owner;
+
+	/* Set the Management Data Clock high if level is one,
+	 * low if level is zero.
+	 */
+	void (*set_mdc)(struct mdio_bitbang_ctrl *ctrl, int level);
+
+	/* Configure the Management Data I/O pin as an input if
+	 * "output" is zero, or an output if "output" is one.
+	 */
+	void (*set_mdio_dir)(struct mdio_bitbang_ctrl *ctrl, int output);
+
+	/* Set the Management Data I/O pin high if value is one,
+	 * low if "value" is zero.  This may only be called
+	 * when the MDIO pin is configured as an output.
+	 */
+	void (*set_mdio_data)(struct mdio_bitbang_ctrl *ctrl, int value);
+
+	/* Retrieve the state Management Data I/O pin. */
+	int (*get_mdio_data)(struct mdio_bitbang_ctrl *ctrl);
+};
+
+struct mdio_bitbang_ctrl {
+	const struct mdio_bitbang_ops *ops;
+};
+
+/* The returned bus is not yet registered with the phy layer. */
+struct mii_bus *alloc_mdio_bitbang(struct mdio_bitbang_ctrl *ctrl);
+
+/* The bus must already have been unregistered. */
+void free_mdio_bitbang(struct mii_bus *bus);
+
+#endif
-- 
1.5.0.3

Re: [PATCH 1/7] Generic bitbanged MDIO library

[Jeff Garzik]

Scott Wood wrote:
> Previously, bitbanged MDIO was only supported in individual
> hardware-specific drivers.  This code factors out the higher level
> protocol implementation, reducing the hardware-specific portion to
> functions setting direction, data, and clock.
> 
> Signed-off-by: Scott Wood <scottwood@freescale.com>
> ---
>  drivers/net/phy/Kconfig        |    9 ++
>  drivers/net/phy/Makefile       |    1 +
>  drivers/net/phy/mdio-bitbang.c |  187 ++++++++++++++++++++++++++++++++++++++++
>  include/linux/mdio-bitbang.h   |   42 +++++++++
>  4 files changed, 239 insertions(+), 0 deletions(-)
>  create mode 100644 drivers/net/phy/mdio-bitbang.c
>  create mode 100644 include/linux/mdio-bitbang.h

I cannot ACK this, nor do I want to see it merged, until users appear 
and have been reviewed alongside this.  I do not see any fs_enet patches 
that actually use this.

five-second-glance comments:

* "mdio_bitbang_" is a long prefix.  consider "mdiobb_" or somesuch

* the delay (where you call ndelay()) is not guaranteed without a flush 
of some sort

* how widely applicable is this "generic" library?  have you converted 
any non-embedded drivers over to it?

Re: [PATCH 1/7] Generic bitbanged MDIO library

[Jeff Garzik]

Scott Wood wrote:
> Previously, bitbanged MDIO was only supported in individual
> hardware-specific drivers.  This code factors out the higher level
> protocol implementation, reducing the hardware-specific portion to
> functions setting direction, data, and clock.
> 
> Signed-off-by: Scott Wood <scottwood@freescale.com>
> ---
>  drivers/net/phy/Kconfig        |    9 ++
>  drivers/net/phy/Makefile       |    1 +
>  drivers/net/phy/mdio-bitbang.c |  187 ++++++++++++++++++++++++++++++++++++++++
>  include/linux/mdio-bitbang.h   |   42 +++++++++
>  4 files changed, 239 insertions(+), 0 deletions(-)
>  create mode 100644 drivers/net/phy/mdio-bitbang.c
>  create mode 100644 include/linux/mdio-bitbang.h

I cannot ACK this, nor do I want to see it merged, until users appear 
and have been reviewed alongside this.  I do not see any fs_enet patches 
that actually use this.

five-second-glance comments:

* "mdio_bitbang_" is a long prefix.  consider "mdiobb_" or somesuch

* the delay (where you call ndelay()) is not guaranteed without a flush 
of some sort

* how widely applicable is this "generic" library?  have you converted 
any non-embedded drivers over to it?

Re: [PATCH 1/7] Generic bitbanged MDIO library

[Scott Wood]

On Fri, Aug 31, 2007 at 09:23:04AM -0400, Jeff Garzik wrote:
> I cannot ACK this, nor do I want to see it merged, until users appear 
> and have been reviewed alongside this.  I do not see any fs_enet patches 
> that actually use this.

The fs_enet patchset does use it in mii-bitbang.c, in patch 6/7 (or 7/8
in the revised patchset).  I'll also be using it on the ep8248e board
(which is why I factored it out), which I'll attach below.

> * the delay (where you call ndelay()) is not guaranteed without a flush 
> of some sort

Hmm...  I'm inclined to push that into the client's implementation of set
mdc/data, primarily because there's no get mdc to do a read-back
generically.

> * how widely applicable is this "generic" library?

It implements MDIO as described in the ethernet specification; there
should be no implementation dependencies.

>  have you converted any non-embedded drivers over to it?

No; most hardware doesn't need bitbanging.  Sunhme does, but I don't have
hardware to test a conversion.

Here's the ep8248e user of the bitbang code:

/*
 * Embedded Planet EP8248E support
 *
 * Copyright 2007 Freescale Semiconductor, Inc.
 * Author: Scott Wood <scottwood@freescale.com>
 *
 * This program is free software; you can redistribute  it and/or modify
 * it under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 */

#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/fsl_devices.h>
#include <linux/mdio-bitbang.h>
#include <linux/of_platform.h>

#include <asm/io.h>
#include <asm/cpm2.h>
#include <asm/udbg.h>
#include <asm/machdep.h>
#include <asm/time.h>
#include <asm/mpc8260.h>

#include <sysdev/fsl_soc.h>
#include <sysdev/cpm2_pic.h>

#include "pq2.h"

static u8 __iomem *ep8248e_bcsr;
static struct device_node *ep8248e_bcsr_node;

#define BCSR7_SCC2_ENABLE 0x10

#define BCSR8_PHY1_ENABLE 0x80
#define BCSR8_PHY1_POWER  0x40
#define BCSR8_PHY2_ENABLE 0x20
#define BCSR8_PHY2_POWER  0x10
#define BCSR8_MDIO_READ   0x04
#define BCSR8_MDIO_CLOCK  0x02
#define BCSR8_MDIO_DATA   0x01

#define BCSR9_USB_ENABLE  0x80
#define BCSR9_USB_POWER   0x40
#define BCSR9_USB_HOST    0x20
#define BCSR9_USB_FULL_SPEED_TARGET 0x10

static void __init ep8248_pic_init(void)
{
	struct device_node *np = of_find_compatible_node(NULL, NULL, "fsl,pq2-pic");
	if (!np) {
		printk(KERN_ERR "PIC init: can not find cpm-pic node\n");
		return;
	}

	cpm2_pic_init(np);
	of_node_put(np);
}

static void ep8248e_set_mdc(struct mdio_bitbang_ctrl *ctrl, int level)
{
	if (level)
		setbits8(&ep8248e_bcsr[8], BCSR8_MDIO_CLOCK);
	else
		clrbits8(&ep8248e_bcsr[8], BCSR8_MDIO_CLOCK);

	/* Flush the write before delaying. */
	in_8(&ep8248e_bcsr[8]);
}

static void ep8248e_set_mdio_dir(struct mdio_bitbang_ctrl *ctrl, int output)
{
	if (output)
		clrbits8(&ep8248e_bcsr[8], BCSR8_MDIO_READ);
	else
		setbits8(&ep8248e_bcsr[8], BCSR8_MDIO_READ);

	/* Flush the write before delaying. */
	in_8(&ep8248e_bcsr[8]);
}

static void ep8248e_set_mdio_data(struct mdio_bitbang_ctrl *ctrl, int data)
{
	if (data)
		setbits8(&ep8248e_bcsr[8], BCSR8_MDIO_DATA);
	else
		clrbits8(&ep8248e_bcsr[8], BCSR8_MDIO_DATA);

	/* Flush the write before delaying. */
	in_8(&ep8248e_bcsr[8]);
}

static int ep8248e_get_mdio_data(struct mdio_bitbang_ctrl *ctrl)
{
	return in_8(&ep8248e_bcsr[8]) & BCSR8_MDIO_DATA;
}

static struct mdio_bitbang_ops ep8248e_mdio_ops = {
	.set_mdc = ep8248e_set_mdc,
	.set_mdio_dir = ep8248e_set_mdio_dir,
	.set_mdio_data = ep8248e_set_mdio_data,
	.get_mdio_data = ep8248e_get_mdio_data,
	.owner = THIS_MODULE,
};

static struct mdio_bitbang_ctrl ep8248e_mdio_ctrl = {
	.ops = &ep8248e_mdio_ops,
};

static int __devinit ep8248e_mdio_probe(struct of_device *ofdev,
                                        const struct of_device_id *match)
{
	struct mii_bus *bus;
	struct resource res;
	int ret, i;

	if (of_get_parent(ofdev->node) != ep8248e_bcsr_node)
		return -ENODEV;

	ret = of_address_to_resource(ofdev->node, 0, &res);
	if (ret)
		return ret;

	bus = alloc_mdio_bitbang(&ep8248e_mdio_ctrl);
	if (!bus)
		return -ENOMEM;

	bus->phy_mask = 0;
	bus->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL);

	for (i = 0; i < PHY_MAX_ADDR; i++)
		bus->irq[i] = -1;

	bus->name = "ep8248e-mdio-bitbang";
	bus->dev = &ofdev->dev;
	bus->id = res.start;

	return mdiobus_register(bus);
}

static int ep8248e_mdio_remove(struct of_device *ofdev)
{
	BUG();
	return 0;
}

static struct of_device_id ep8248e_mdio_match[] = {
	{
		.compatible = "fsl,ep8248e-mdio-bitbang",
	},
	{},
};

static struct of_platform_driver ep8248e_mdio_driver = {
	.name = "ep8248e-mdio-bitbang",
	.match_table = ep8248e_mdio_match,
	.probe = ep8248e_mdio_probe,
	.remove = ep8248e_mdio_remove,
};

struct cpm_pin {
	int port, pin, flags;
};

static struct cpm_pin ep8248_pins[] = {
	/* SMC1 */
	{2, 4, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{2, 5, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},

	/* SCC1 */
	{2, 14, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{2, 15, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{3, 29, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{3, 30, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
	{3, 31, CPM_PIN_INPUT | CPM_PIN_PRIMARY},

	/* FCC1 */
	{0, 14, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{0, 15, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{0, 16, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{0, 17, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{0, 18, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{0, 19, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{0, 20, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{0, 21, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{0, 26, CPM_PIN_INPUT | CPM_PIN_SECONDARY},
	{0, 27, CPM_PIN_INPUT | CPM_PIN_SECONDARY},
	{0, 28, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
	{0, 29, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
	{0, 30, CPM_PIN_INPUT | CPM_PIN_SECONDARY},
	{0, 31, CPM_PIN_INPUT | CPM_PIN_SECONDARY},
	{2, 21, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{2, 22, CPM_PIN_INPUT | CPM_PIN_PRIMARY},

	/* FCC2 */
	{1, 18, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{1, 19, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{1, 20, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{1, 21, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{1, 22, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{1, 23, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{1, 24, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{1, 25, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{1, 26, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{1, 27, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{1, 28, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{1, 29, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
	{1, 30, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{1, 31, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{2, 18, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{2, 19, CPM_PIN_INPUT | CPM_PIN_PRIMARY},

	/* I2C */
	{4, 14, CPM_PIN_INPUT | CPM_PIN_SECONDARY},
	{4, 15, CPM_PIN_INPUT | CPM_PIN_SECONDARY},

	/* USB */
	{2, 10, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{2, 11, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{2, 20, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{2, 24, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{3, 23, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{3, 24, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{3, 25, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
};

static void __init init_ioports(void)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(ep8248_pins); i++) {
		struct cpm_pin *pin = &ep8248_pins[i];
		cpm2_set_pin(pin->port, pin->pin, pin->flags);
	}

	cpm2_smc_clk_setup(CPM_CLK_SMC1, CPM_BRG7);
	cpm2_clk_setup(CPM_CLK_SCC1, CPM_BRG1, CPM_CLK_RX);
	cpm2_clk_setup(CPM_CLK_SCC1, CPM_BRG1, CPM_CLK_TX);
	cpm2_clk_setup(CPM_CLK_SCC3, CPM_CLK8, CPM_CLK_TX); /* USB */
	cpm2_clk_setup(CPM_CLK_FCC1, CPM_CLK11, CPM_CLK_RX);
	cpm2_clk_setup(CPM_CLK_FCC1, CPM_CLK10, CPM_CLK_TX);
	cpm2_clk_setup(CPM_CLK_FCC2, CPM_CLK13, CPM_CLK_RX);
	cpm2_clk_setup(CPM_CLK_FCC2, CPM_CLK14, CPM_CLK_TX);
}

static void __init ep8248_setup_arch(void)
{
	if (ppc_md.progress)
		ppc_md.progress("ep8248_setup_arch()", 0);

	cpm2_reset();

	/* When this is set, snooping CPM DMA from RAM causes
	 * machine checks.  See erratum SIU18.
	 */
	clrbits32(&cpm2_immr->im_siu_conf.siu_82xx.sc_bcr, MPC82XX_BCR_PLDP);

	ep8248e_bcsr_node =
		of_find_compatible_node(NULL, NULL, "fsl,ep8248e-bcsr");
	if (!ep8248e_bcsr_node) {
		printk(KERN_ERR "No bcsr in device tree\n");
		return;
	}

	ep8248e_bcsr = of_iomap(ep8248e_bcsr_node, 0);
	if (!ep8248e_bcsr) {
		printk(KERN_ERR "Cannot map BCSR registers\n");
		return;
	}

	setbits8(&ep8248e_bcsr[7], BCSR7_SCC2_ENABLE);
	setbits8(&ep8248e_bcsr[8], BCSR8_PHY1_ENABLE | BCSR8_PHY1_POWER |
	                           BCSR8_PHY2_ENABLE | BCSR8_PHY2_POWER);

	init_ioports();

	if (ppc_md.progress)
		ppc_md.progress("ep8248_setup_arch(), finish", 0);
}

static struct of_device_id __initdata of_bus_ids[] = {
	{ .name = "soc", },
	{ .name = "cpm", },
	{ .compatible = "fsl,pq2-chipselect", },
	{ .compatible = "fsl,ep8248e-bcsr", },
	{},
};

static int __init declare_of_platform_devices(void)
{
	if (!machine_is(ep8248))
		return 0;

	of_platform_bus_probe(NULL, of_bus_ids, NULL);
	of_register_platform_driver(&ep8248e_mdio_driver);

	return 0;
}
device_initcall(declare_of_platform_devices);

/*
 * Called very early, device-tree isn't unflattened
 */
static int __init ep8248_probe(void)
{
	unsigned long root = of_get_flat_dt_root();
	return of_flat_dt_is_compatible(root, "fsl,ep8248e");
}

define_machine(ep8248)
{
	.name = "Embedded Planet EP8248E",
	.probe = ep8248_probe,
	.setup_arch = ep8248_setup_arch,
	.init_IRQ = ep8248_pic_init,
	.get_irq = cpm2_get_irq,
	.calibrate_decr = generic_calibrate_decr,
	.restart = pq2_restart,
	.progress = udbg_progress,
};

Re: [PATCH 1/7] Generic bitbanged MDIO library

[Scott Wood]

On Fri, Aug 31, 2007 at 09:23:04AM -0400, Jeff Garzik wrote:
> I cannot ACK this, nor do I want to see it merged, until users appear 
> and have been reviewed alongside this.  I do not see any fs_enet patches 
> that actually use this.

The fs_enet patchset does use it in mii-bitbang.c, in patch 6/7 (or 7/8
in the revised patchset).  I'll also be using it on the ep8248e board
(which is why I factored it out), which I'll attach below.

> * the delay (where you call ndelay()) is not guaranteed without a flush 
> of some sort

Hmm...  I'm inclined to push that into the client's implementation of set
mdc/data, primarily because there's no get mdc to do a read-back
generically.

> * how widely applicable is this "generic" library?

It implements MDIO as described in the ethernet specification; there
should be no implementation dependencies.

>  have you converted any non-embedded drivers over to it?

No; most hardware doesn't need bitbanging.  Sunhme does, but I don't have
hardware to test a conversion.

Here's the ep8248e user of the bitbang code:

/*
 * Embedded Planet EP8248E support
 *
 * Copyright 2007 Freescale Semiconductor, Inc.
 * Author: Scott Wood <scottwood@freescale.com>
 *
 * This program is free software; you can redistribute  it and/or modify
 * it under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 */

#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/fsl_devices.h>
#include <linux/mdio-bitbang.h>
#include <linux/of_platform.h>

#include <asm/io.h>
#include <asm/cpm2.h>
#include <asm/udbg.h>
#include <asm/machdep.h>
#include <asm/time.h>
#include <asm/mpc8260.h>

#include <sysdev/fsl_soc.h>
#include <sysdev/cpm2_pic.h>

#include "pq2.h"

static u8 __iomem *ep8248e_bcsr;
static struct device_node *ep8248e_bcsr_node;

#define BCSR7_SCC2_ENABLE 0x10

#define BCSR8_PHY1_ENABLE 0x80
#define BCSR8_PHY1_POWER  0x40
#define BCSR8_PHY2_ENABLE 0x20
#define BCSR8_PHY2_POWER  0x10
#define BCSR8_MDIO_READ   0x04
#define BCSR8_MDIO_CLOCK  0x02
#define BCSR8_MDIO_DATA   0x01

#define BCSR9_USB_ENABLE  0x80
#define BCSR9_USB_POWER   0x40
#define BCSR9_USB_HOST    0x20
#define BCSR9_USB_FULL_SPEED_TARGET 0x10

static void __init ep8248_pic_init(void)
{
	struct device_node *np = of_find_compatible_node(NULL, NULL, "fsl,pq2-pic");
	if (!np) {
		printk(KERN_ERR "PIC init: can not find cpm-pic node\n");
		return;
	}

	cpm2_pic_init(np);
	of_node_put(np);
}

static void ep8248e_set_mdc(struct mdio_bitbang_ctrl *ctrl, int level)
{
	if (level)
		setbits8(&ep8248e_bcsr[8], BCSR8_MDIO_CLOCK);
	else
		clrbits8(&ep8248e_bcsr[8], BCSR8_MDIO_CLOCK);

	/* Flush the write before delaying. */
	in_8(&ep8248e_bcsr[8]);
}

static void ep8248e_set_mdio_dir(struct mdio_bitbang_ctrl *ctrl, int output)
{
	if (output)
		clrbits8(&ep8248e_bcsr[8], BCSR8_MDIO_READ);
	else
		setbits8(&ep8248e_bcsr[8], BCSR8_MDIO_READ);

	/* Flush the write before delaying. */
	in_8(&ep8248e_bcsr[8]);
}

static void ep8248e_set_mdio_data(struct mdio_bitbang_ctrl *ctrl, int data)
{
	if (data)
		setbits8(&ep8248e_bcsr[8], BCSR8_MDIO_DATA);
	else
		clrbits8(&ep8248e_bcsr[8], BCSR8_MDIO_DATA);

	/* Flush the write before delaying. */
	in_8(&ep8248e_bcsr[8]);
}

static int ep8248e_get_mdio_data(struct mdio_bitbang_ctrl *ctrl)
{
	return in_8(&ep8248e_bcsr[8]) & BCSR8_MDIO_DATA;
}

static struct mdio_bitbang_ops ep8248e_mdio_ops = {
	.set_mdc = ep8248e_set_mdc,
	.set_mdio_dir = ep8248e_set_mdio_dir,
	.set_mdio_data = ep8248e_set_mdio_data,
	.get_mdio_data = ep8248e_get_mdio_data,
	.owner = THIS_MODULE,
};

static struct mdio_bitbang_ctrl ep8248e_mdio_ctrl = {
	.ops = &ep8248e_mdio_ops,
};

static int __devinit ep8248e_mdio_probe(struct of_device *ofdev,
                                        const struct of_device_id *match)
{
	struct mii_bus *bus;
	struct resource res;
	int ret, i;

	if (of_get_parent(ofdev->node) != ep8248e_bcsr_node)
		return -ENODEV;

	ret = of_address_to_resource(ofdev->node, 0, &res);
	if (ret)
		return ret;

	bus = alloc_mdio_bitbang(&ep8248e_mdio_ctrl);
	if (!bus)
		return -ENOMEM;

	bus->phy_mask = 0;
	bus->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL);

	for (i = 0; i < PHY_MAX_ADDR; i++)
		bus->irq[i] = -1;

	bus->name = "ep8248e-mdio-bitbang";
	bus->dev = &ofdev->dev;
	bus->id = res.start;

	return mdiobus_register(bus);
}

static int ep8248e_mdio_remove(struct of_device *ofdev)
{
	BUG();
	return 0;
}

static struct of_device_id ep8248e_mdio_match[] = {
	{
		.compatible = "fsl,ep8248e-mdio-bitbang",
	},
	{},
};

static struct of_platform_driver ep8248e_mdio_driver = {
	.name = "ep8248e-mdio-bitbang",
	.match_table = ep8248e_mdio_match,
	.probe = ep8248e_mdio_probe,
	.remove = ep8248e_mdio_remove,
};

struct cpm_pin {
	int port, pin, flags;
};

static struct cpm_pin ep8248_pins[] = {
	/* SMC1 */
	{2, 4, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{2, 5, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},

	/* SCC1 */
	{2, 14, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{2, 15, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{3, 29, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{3, 30, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
	{3, 31, CPM_PIN_INPUT | CPM_PIN_PRIMARY},

	/* FCC1 */
	{0, 14, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{0, 15, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{0, 16, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{0, 17, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{0, 18, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{0, 19, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{0, 20, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{0, 21, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{0, 26, CPM_PIN_INPUT | CPM_PIN_SECONDARY},
	{0, 27, CPM_PIN_INPUT | CPM_PIN_SECONDARY},
	{0, 28, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
	{0, 29, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
	{0, 30, CPM_PIN_INPUT | CPM_PIN_SECONDARY},
	{0, 31, CPM_PIN_INPUT | CPM_PIN_SECONDARY},
	{2, 21, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{2, 22, CPM_PIN_INPUT | CPM_PIN_PRIMARY},

	/* FCC2 */
	{1, 18, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{1, 19, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{1, 20, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{1, 21, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{1, 22, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{1, 23, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{1, 24, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{1, 25, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{1, 26, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{1, 27, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{1, 28, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{1, 29, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
	{1, 30, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{1, 31, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{2, 18, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{2, 19, CPM_PIN_INPUT | CPM_PIN_PRIMARY},

	/* I2C */
	{4, 14, CPM_PIN_INPUT | CPM_PIN_SECONDARY},
	{4, 15, CPM_PIN_INPUT | CPM_PIN_SECONDARY},

	/* USB */
	{2, 10, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{2, 11, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{2, 20, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{2, 24, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
	{3, 23, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{3, 24, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
	{3, 25, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
};

static void __init init_ioports(void)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(ep8248_pins); i++) {
		struct cpm_pin *pin = &ep8248_pins[i];
		cpm2_set_pin(pin->port, pin->pin, pin->flags);
	}

	cpm2_smc_clk_setup(CPM_CLK_SMC1, CPM_BRG7);
	cpm2_clk_setup(CPM_CLK_SCC1, CPM_BRG1, CPM_CLK_RX);
	cpm2_clk_setup(CPM_CLK_SCC1, CPM_BRG1, CPM_CLK_TX);
	cpm2_clk_setup(CPM_CLK_SCC3, CPM_CLK8, CPM_CLK_TX); /* USB */
	cpm2_clk_setup(CPM_CLK_FCC1, CPM_CLK11, CPM_CLK_RX);
	cpm2_clk_setup(CPM_CLK_FCC1, CPM_CLK10, CPM_CLK_TX);
	cpm2_clk_setup(CPM_CLK_FCC2, CPM_CLK13, CPM_CLK_RX);
	cpm2_clk_setup(CPM_CLK_FCC2, CPM_CLK14, CPM_CLK_TX);
}

static void __init ep8248_setup_arch(void)
{
	if (ppc_md.progress)
		ppc_md.progress("ep8248_setup_arch()", 0);

	cpm2_reset();

	/* When this is set, snooping CPM DMA from RAM causes
	 * machine checks.  See erratum SIU18.
	 */
	clrbits32(&cpm2_immr->im_siu_conf.siu_82xx.sc_bcr, MPC82XX_BCR_PLDP);

	ep8248e_bcsr_node =
		of_find_compatible_node(NULL, NULL, "fsl,ep8248e-bcsr");
	if (!ep8248e_bcsr_node) {
		printk(KERN_ERR "No bcsr in device tree\n");
		return;
	}

	ep8248e_bcsr = of_iomap(ep8248e_bcsr_node, 0);
	if (!ep8248e_bcsr) {
		printk(KERN_ERR "Cannot map BCSR registers\n");
		return;
	}

	setbits8(&ep8248e_bcsr[7], BCSR7_SCC2_ENABLE);
	setbits8(&ep8248e_bcsr[8], BCSR8_PHY1_ENABLE | BCSR8_PHY1_POWER |
	                           BCSR8_PHY2_ENABLE | BCSR8_PHY2_POWER);

	init_ioports();

	if (ppc_md.progress)
		ppc_md.progress("ep8248_setup_arch(), finish", 0);
}

static struct of_device_id __initdata of_bus_ids[] = {
	{ .name = "soc", },
	{ .name = "cpm", },
	{ .compatible = "fsl,pq2-chipselect", },
	{ .compatible = "fsl,ep8248e-bcsr", },
	{},
};

static int __init declare_of_platform_devices(void)
{
	if (!machine_is(ep8248))
		return 0;

	of_platform_bus_probe(NULL, of_bus_ids, NULL);
	of_register_platform_driver(&ep8248e_mdio_driver);

	return 0;
}
device_initcall(declare_of_platform_devices);

/*
 * Called very early, device-tree isn't unflattened
 */
static int __init ep8248_probe(void)
{
	unsigned long root = of_get_flat_dt_root();
	return of_flat_dt_is_compatible(root, "fsl,ep8248e");
}

define_machine(ep8248)
{
	.name = "Embedded Planet EP8248E",
	.probe = ep8248_probe,
	.setup_arch = ep8248_setup_arch,
	.init_IRQ = ep8248_pic_init,
	.get_irq = cpm2_get_irq,
	.calibrate_decr = generic_calibrate_decr,
	.restart = pq2_restart,
	.progress = udbg_progress,
};

[PATCH 2/7] fs_enet: Whitespace cleanup.

[Scott Wood]

Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 drivers/net/fs_enet/fs_enet-main.c |   85 ++++++++++++++++-------------------
 drivers/net/fs_enet/fs_enet.h      |    4 +-
 drivers/net/fs_enet/mac-fcc.c      |    1 -
 drivers/net/fs_enet/mii-fec.c      |    1 -
 4 files changed, 41 insertions(+), 50 deletions(-)

diff --git a/drivers/net/fs_enet/fs_enet-main.c b/drivers/net/fs_enet/fs_enet-main.c
index a4a2a0e..f261b90 100644
--- a/drivers/net/fs_enet/fs_enet-main.c
+++ b/drivers/net/fs_enet/fs_enet-main.c
@@ -353,7 +353,6 @@ static void fs_enet_tx(struct net_device *dev)
 
 	do_wake = do_restart = 0;
 	while (((sc = CBDR_SC(bdp)) & BD_ENET_TX_READY) == 0) {
-
 		dirtyidx = bdp - fep->tx_bd_base;
 
 		if (fep->tx_free == fep->tx_ring)
@@ -454,7 +453,6 @@ fs_enet_interrupt(int irq, void *dev_id)
 
 	nr = 0;
 	while ((int_events = (*fep->ops->get_int_events)(dev)) != 0) {
-
 		nr++;
 
 		int_clr_events = int_events;
@@ -710,45 +708,43 @@ static void fs_timeout(struct net_device *dev)
  *-----------------------------------------------------------------------------*/
 static void generic_adjust_link(struct  net_device *dev)
 {
-       struct fs_enet_private *fep = netdev_priv(dev);
-       struct phy_device *phydev = fep->phydev;
-       int new_state = 0;
-
-       if (phydev->link) {
-
-               /* adjust to duplex mode */
-               if (phydev->duplex != fep->oldduplex){
-                       new_state = 1;
-                       fep->oldduplex = phydev->duplex;
-               }
-
-               if (phydev->speed != fep->oldspeed) {
-                       new_state = 1;
-                       fep->oldspeed = phydev->speed;
-               }
-
-               if (!fep->oldlink) {
-                       new_state = 1;
-                       fep->oldlink = 1;
-                       netif_schedule(dev);
-                       netif_carrier_on(dev);
-                       netif_start_queue(dev);
-               }
-
-               if (new_state)
-                       fep->ops->restart(dev);
-
-       } else if (fep->oldlink) {
-               new_state = 1;
-               fep->oldlink = 0;
-               fep->oldspeed = 0;
-               fep->oldduplex = -1;
-               netif_carrier_off(dev);
-               netif_stop_queue(dev);
-       }
-
-       if (new_state && netif_msg_link(fep))
-               phy_print_status(phydev);
+	struct fs_enet_private *fep = netdev_priv(dev);
+	struct phy_device *phydev = fep->phydev;
+	int new_state = 0;
+
+	if (phydev->link) {
+		/* adjust to duplex mode */
+		if (phydev->duplex != fep->oldduplex) {
+			new_state = 1;
+			fep->oldduplex = phydev->duplex;
+		}
+
+		if (phydev->speed != fep->oldspeed) {
+			new_state = 1;
+			fep->oldspeed = phydev->speed;
+		}
+
+		if (!fep->oldlink) {
+			new_state = 1;
+			fep->oldlink = 1;
+			netif_schedule(dev);
+			netif_carrier_on(dev);
+			netif_start_queue(dev);
+		}
+
+		if (new_state)
+			fep->ops->restart(dev);
+	} else if (fep->oldlink) {
+		new_state = 1;
+		fep->oldlink = 0;
+		fep->oldspeed = 0;
+		fep->oldduplex = -1;
+		netif_carrier_off(dev);
+		netif_stop_queue(dev);
+	}
+
+	if (new_state && netif_msg_link(fep))
+		phy_print_status(phydev);
 }
 
 
@@ -792,7 +788,6 @@ static int fs_init_phy(struct net_device *dev)
 	return 0;
 }
 
-
 static int fs_enet_open(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
@@ -978,7 +973,7 @@ static struct net_device *fs_init_instance(struct device *dev,
 #endif
 
 #ifdef CONFIG_FS_ENET_HAS_SCC
-	if (fs_get_scc_index(fpi->fs_no) >=0 )
+	if (fs_get_scc_index(fpi->fs_no) >= 0)
 		fep->ops = &fs_scc_ops;
 #endif
 
@@ -1069,9 +1064,8 @@ static struct net_device *fs_init_instance(struct device *dev,
 
 	return ndev;
 
-      err:
+err:
 	if (ndev != NULL) {
-
 		if (registered)
 			unregister_netdev(ndev);
 
@@ -1262,7 +1256,6 @@ static int __init fs_init(void)
 err:
 	cleanup_immap();
 	return r;
-	
 }
 
 static void __exit fs_cleanup(void)
diff --git a/drivers/net/fs_enet/fs_enet.h b/drivers/net/fs_enet/fs_enet.h
index 569be22..72a61e9 100644
--- a/drivers/net/fs_enet/fs_enet.h
+++ b/drivers/net/fs_enet/fs_enet.h
@@ -15,8 +15,8 @@
 #include <asm/commproc.h>
 
 struct fec_info {
-        fec_t*  fecp;
-	u32     mii_speed;
+	fec_t *fecp;
+	u32 mii_speed;
 };
 #endif
 
diff --git a/drivers/net/fs_enet/mac-fcc.c b/drivers/net/fs_enet/mac-fcc.c
index 5603121..ad3c5fa 100644
--- a/drivers/net/fs_enet/mac-fcc.c
+++ b/drivers/net/fs_enet/mac-fcc.c
@@ -86,7 +86,6 @@
 static inline int fcc_cr_cmd(struct fs_enet_private *fep, u32 mcn, u32 op)
 {
 	const struct fs_platform_info *fpi = fep->fpi;
-
 	cpm2_map_t *immap = fs_enet_immap;
 	cpm_cpm2_t *cpmp = &immap->im_cpm;
 	u32 v;
diff --git a/drivers/net/fs_enet/mii-fec.c b/drivers/net/fs_enet/mii-fec.c
index 0a563a8..53db696 100644
--- a/drivers/net/fs_enet/mii-fec.c
+++ b/drivers/net/fs_enet/mii-fec.c
@@ -113,7 +113,6 @@ static int fs_enet_fec_mii_read(struct mii_bus *bus , int phy_id, int location)
 	}
 
 	return ret;
-
 }
 
 static int fs_enet_fec_mii_write(struct mii_bus *bus, int phy_id, int location, u16 val)
-- 
1.5.0.3

Re: [PATCH 2/7] fs_enet: Whitespace cleanup.

[Vitaly Bordug]

On Fri, 17 Aug 2007 12:53:59 -0500
Scott Wood wrote:

> Signed-off-by: Scott Wood <scottwood@freescale.com>

Acked-by: Vitaly Bordug <vitb@kernel.crashing.org>


> ---
>  drivers/net/fs_enet/fs_enet-main.c |   85
> ++++++++++++++++-------------------
> drivers/net/fs_enet/fs_enet.h      |    4 +-
> drivers/net/fs_enet/mac-fcc.c      |    1 -
> drivers/net/fs_enet/mii-fec.c      |    1 - 4 files changed, 41
> insertions(+), 50 deletions(-)
> 
> diff --git a/drivers/net/fs_enet/fs_enet-main.c
> b/drivers/net/fs_enet/fs_enet-main.c index a4a2a0e..f261b90 100644
> --- a/drivers/net/fs_enet/fs_enet-main.c
> +++ b/drivers/net/fs_enet/fs_enet-main.c
> @@ -353,7 +353,6 @@ static void fs_enet_tx(struct net_device *dev)
>  
>  	do_wake = do_restart = 0;
>  	while (((sc = CBDR_SC(bdp)) & BD_ENET_TX_READY) == 0) {
> -
>  		dirtyidx = bdp - fep->tx_bd_base;
>  
>  		if (fep->tx_free == fep->tx_ring)
> @@ -454,7 +453,6 @@ fs_enet_interrupt(int irq, void *dev_id)
>  
>  	nr = 0;
>  	while ((int_events = (*fep->ops->get_int_events)(dev)) != 0)
> { -
>  		nr++;
>  
>  		int_clr_events = int_events;
> @@ -710,45 +708,43 @@ static void fs_timeout(struct net_device *dev)
>   *-----------------------------------------------------------------------------*/
>  static void generic_adjust_link(struct  net_device *dev)
>  {
> -       struct fs_enet_private *fep = netdev_priv(dev);
> -       struct phy_device *phydev = fep->phydev;
> -       int new_state = 0;
> -
> -       if (phydev->link) {
> -
> -               /* adjust to duplex mode */
> -               if (phydev->duplex != fep->oldduplex){
> -                       new_state = 1;
> -                       fep->oldduplex = phydev->duplex;
> -               }
> -
> -               if (phydev->speed != fep->oldspeed) {
> -                       new_state = 1;
> -                       fep->oldspeed = phydev->speed;
> -               }
> -
> -               if (!fep->oldlink) {
> -                       new_state = 1;
> -                       fep->oldlink = 1;
> -                       netif_schedule(dev);
> -                       netif_carrier_on(dev);
> -                       netif_start_queue(dev);
> -               }
> -
> -               if (new_state)
> -                       fep->ops->restart(dev);
> -
> -       } else if (fep->oldlink) {
> -               new_state = 1;
> -               fep->oldlink = 0;
> -               fep->oldspeed = 0;
> -               fep->oldduplex = -1;
> -               netif_carrier_off(dev);
> -               netif_stop_queue(dev);
> -       }
> -
> -       if (new_state && netif_msg_link(fep))
> -               phy_print_status(phydev);
> +	struct fs_enet_private *fep = netdev_priv(dev);
> +	struct phy_device *phydev = fep->phydev;
> +	int new_state = 0;
> +
> +	if (phydev->link) {
> +		/* adjust to duplex mode */
> +		if (phydev->duplex != fep->oldduplex) {
> +			new_state = 1;
> +			fep->oldduplex = phydev->duplex;
> +		}
> +
> +		if (phydev->speed != fep->oldspeed) {
> +			new_state = 1;
> +			fep->oldspeed = phydev->speed;
> +		}
> +
> +		if (!fep->oldlink) {
> +			new_state = 1;
> +			fep->oldlink = 1;
> +			netif_schedule(dev);
> +			netif_carrier_on(dev);
> +			netif_start_queue(dev);
> +		}
> +
> +		if (new_state)
> +			fep->ops->restart(dev);
> +	} else if (fep->oldlink) {
> +		new_state = 1;
> +		fep->oldlink = 0;
> +		fep->oldspeed = 0;
> +		fep->oldduplex = -1;
> +		netif_carrier_off(dev);
> +		netif_stop_queue(dev);
> +	}
> +
> +	if (new_state && netif_msg_link(fep))
> +		phy_print_status(phydev);
>  }
>  
>  
> @@ -792,7 +788,6 @@ static int fs_init_phy(struct net_device *dev)
>  	return 0;
>  }
>  
> -
>  static int fs_enet_open(struct net_device *dev)
>  {
>  	struct fs_enet_private *fep = netdev_priv(dev);
> @@ -978,7 +973,7 @@ static struct net_device *fs_init_instance(struct
> device *dev, #endif
>  
>  #ifdef CONFIG_FS_ENET_HAS_SCC
> -	if (fs_get_scc_index(fpi->fs_no) >=0 )
> +	if (fs_get_scc_index(fpi->fs_no) >= 0)
>  		fep->ops = &fs_scc_ops;
>  #endif
>  
> @@ -1069,9 +1064,8 @@ static struct net_device
> *fs_init_instance(struct device *dev, 
>  	return ndev;
>  
> -      err:
> +err:
>  	if (ndev != NULL) {
> -
>  		if (registered)
>  			unregister_netdev(ndev);
>  
> @@ -1262,7 +1256,6 @@ static int __init fs_init(void)
>  err:
>  	cleanup_immap();
>  	return r;
> -	
>  }
>  
>  static void __exit fs_cleanup(void)
> diff --git a/drivers/net/fs_enet/fs_enet.h
> b/drivers/net/fs_enet/fs_enet.h index 569be22..72a61e9 100644
> --- a/drivers/net/fs_enet/fs_enet.h
> +++ b/drivers/net/fs_enet/fs_enet.h
> @@ -15,8 +15,8 @@
>  #include <asm/commproc.h>
>  
>  struct fec_info {
> -        fec_t*  fecp;
> -	u32     mii_speed;
> +	fec_t *fecp;
> +	u32 mii_speed;
>  };
>  #endif
>  
> diff --git a/drivers/net/fs_enet/mac-fcc.c
> b/drivers/net/fs_enet/mac-fcc.c index 5603121..ad3c5fa 100644
> --- a/drivers/net/fs_enet/mac-fcc.c
> +++ b/drivers/net/fs_enet/mac-fcc.c
> @@ -86,7 +86,6 @@
>  static inline int fcc_cr_cmd(struct fs_enet_private *fep, u32 mcn,
> u32 op) {
>  	const struct fs_platform_info *fpi = fep->fpi;
> -
>  	cpm2_map_t *immap = fs_enet_immap;
>  	cpm_cpm2_t *cpmp = &immap->im_cpm;
>  	u32 v;
> diff --git a/drivers/net/fs_enet/mii-fec.c
> b/drivers/net/fs_enet/mii-fec.c index 0a563a8..53db696 100644
> --- a/drivers/net/fs_enet/mii-fec.c
> +++ b/drivers/net/fs_enet/mii-fec.c
> @@ -113,7 +113,6 @@ static int fs_enet_fec_mii_read(struct mii_bus
> *bus , int phy_id, int location) }
>  
>  	return ret;
> -
>  }
>  
>  static int fs_enet_fec_mii_write(struct mii_bus *bus, int phy_id,
> int location, u16 val)


-- 
Sincerely, Vitaly

Re: [PATCH 2/7] fs_enet: Whitespace cleanup.

[Vitaly Bordug]

On Fri, 17 Aug 2007 12:53:59 -0500
Scott Wood wrote:

> Signed-off-by: Scott Wood <scottwood@freescale.com>

Acked-by: Vitaly Bordug <vitb@kernel.crashing.org>


> ---
>  drivers/net/fs_enet/fs_enet-main.c |   85
> ++++++++++++++++-------------------
> drivers/net/fs_enet/fs_enet.h      |    4 +-
> drivers/net/fs_enet/mac-fcc.c      |    1 -
> drivers/net/fs_enet/mii-fec.c      |    1 - 4 files changed, 41
> insertions(+), 50 deletions(-)
> 
> diff --git a/drivers/net/fs_enet/fs_enet-main.c
> b/drivers/net/fs_enet/fs_enet-main.c index a4a2a0e..f261b90 100644
> --- a/drivers/net/fs_enet/fs_enet-main.c
> +++ b/drivers/net/fs_enet/fs_enet-main.c
> @@ -353,7 +353,6 @@ static void fs_enet_tx(struct net_device *dev)
>  
>  	do_wake = do_restart = 0;
>  	while (((sc = CBDR_SC(bdp)) & BD_ENET_TX_READY) == 0) {
> -
>  		dirtyidx = bdp - fep->tx_bd_base;
>  
>  		if (fep->tx_free == fep->tx_ring)
> @@ -454,7 +453,6 @@ fs_enet_interrupt(int irq, void *dev_id)
>  
>  	nr = 0;
>  	while ((int_events = (*fep->ops->get_int_events)(dev)) != 0)
> { -
>  		nr++;
>  
>  		int_clr_events = int_events;
> @@ -710,45 +708,43 @@ static void fs_timeout(struct net_device *dev)
>   *-----------------------------------------------------------------------------*/
>  static void generic_adjust_link(struct  net_device *dev)
>  {
> -       struct fs_enet_private *fep = netdev_priv(dev);
> -       struct phy_device *phydev = fep->phydev;
> -       int new_state = 0;
> -
> -       if (phydev->link) {
> -
> -               /* adjust to duplex mode */
> -               if (phydev->duplex != fep->oldduplex){
> -                       new_state = 1;
> -                       fep->oldduplex = phydev->duplex;
> -               }
> -
> -               if (phydev->speed != fep->oldspeed) {
> -                       new_state = 1;
> -                       fep->oldspeed = phydev->speed;
> -               }
> -
> -               if (!fep->oldlink) {
> -                       new_state = 1;
> -                       fep->oldlink = 1;
> -                       netif_schedule(dev);
> -                       netif_carrier_on(dev);
> -                       netif_start_queue(dev);
> -               }
> -
> -               if (new_state)
> -                       fep->ops->restart(dev);
> -
> -       } else if (fep->oldlink) {
> -               new_state = 1;
> -               fep->oldlink = 0;
> -               fep->oldspeed = 0;
> -               fep->oldduplex = -1;
> -               netif_carrier_off(dev);
> -               netif_stop_queue(dev);
> -       }
> -
> -       if (new_state && netif_msg_link(fep))
> -               phy_print_status(phydev);
> +	struct fs_enet_private *fep = netdev_priv(dev);
> +	struct phy_device *phydev = fep->phydev;
> +	int new_state = 0;
> +
> +	if (phydev->link) {
> +		/* adjust to duplex mode */
> +		if (phydev->duplex != fep->oldduplex) {
> +			new_state = 1;
> +			fep->oldduplex = phydev->duplex;
> +		}
> +
> +		if (phydev->speed != fep->oldspeed) {
> +			new_state = 1;
> +			fep->oldspeed = phydev->speed;
> +		}
> +
> +		if (!fep->oldlink) {
> +			new_state = 1;
> +			fep->oldlink = 1;
> +			netif_schedule(dev);
> +			netif_carrier_on(dev);
> +			netif_start_queue(dev);
> +		}
> +
> +		if (new_state)
> +			fep->ops->restart(dev);
> +	} else if (fep->oldlink) {
> +		new_state = 1;
> +		fep->oldlink = 0;
> +		fep->oldspeed = 0;
> +		fep->oldduplex = -1;
> +		netif_carrier_off(dev);
> +		netif_stop_queue(dev);
> +	}
> +
> +	if (new_state && netif_msg_link(fep))
> +		phy_print_status(phydev);
>  }
>  
>  
> @@ -792,7 +788,6 @@ static int fs_init_phy(struct net_device *dev)
>  	return 0;
>  }
>  
> -
>  static int fs_enet_open(struct net_device *dev)
>  {
>  	struct fs_enet_private *fep = netdev_priv(dev);
> @@ -978,7 +973,7 @@ static struct net_device *fs_init_instance(struct
> device *dev, #endif
>  
>  #ifdef CONFIG_FS_ENET_HAS_SCC
> -	if (fs_get_scc_index(fpi->fs_no) >=0 )
> +	if (fs_get_scc_index(fpi->fs_no) >= 0)
>  		fep->ops = &fs_scc_ops;
>  #endif
>  
> @@ -1069,9 +1064,8 @@ static struct net_device
> *fs_init_instance(struct device *dev, 
>  	return ndev;
>  
> -      err:
> +err:
>  	if (ndev != NULL) {
> -
>  		if (registered)
>  			unregister_netdev(ndev);
>  
> @@ -1262,7 +1256,6 @@ static int __init fs_init(void)
>  err:
>  	cleanup_immap();
>  	return r;
> -	
>  }
>  
>  static void __exit fs_cleanup(void)
> diff --git a/drivers/net/fs_enet/fs_enet.h
> b/drivers/net/fs_enet/fs_enet.h index 569be22..72a61e9 100644
> --- a/drivers/net/fs_enet/fs_enet.h
> +++ b/drivers/net/fs_enet/fs_enet.h
> @@ -15,8 +15,8 @@
>  #include <asm/commproc.h>
>  
>  struct fec_info {
> -        fec_t*  fecp;
> -	u32     mii_speed;
> +	fec_t *fecp;
> +	u32 mii_speed;
>  };
>  #endif
>  
> diff --git a/drivers/net/fs_enet/mac-fcc.c
> b/drivers/net/fs_enet/mac-fcc.c index 5603121..ad3c5fa 100644
> --- a/drivers/net/fs_enet/mac-fcc.c
> +++ b/drivers/net/fs_enet/mac-fcc.c
> @@ -86,7 +86,6 @@
>  static inline int fcc_cr_cmd(struct fs_enet_private *fep, u32 mcn,
> u32 op) {
>  	const struct fs_platform_info *fpi = fep->fpi;
> -
>  	cpm2_map_t *immap = fs_enet_immap;
>  	cpm_cpm2_t *cpmp = &immap->im_cpm;
>  	u32 v;
> diff --git a/drivers/net/fs_enet/mii-fec.c
> b/drivers/net/fs_enet/mii-fec.c index 0a563a8..53db696 100644
> --- a/drivers/net/fs_enet/mii-fec.c
> +++ b/drivers/net/fs_enet/mii-fec.c
> @@ -113,7 +113,6 @@ static int fs_enet_fec_mii_read(struct mii_bus
> *bus , int phy_id, int location) }
>  
>  	return ret;
> -
>  }
>  
>  static int fs_enet_fec_mii_write(struct mii_bus *bus, int phy_id,
> int location, u16 val)


-- 
Sincerely, Vitaly

Re: [PATCH 2/7] fs_enet: Whitespace cleanup.

[Jeff Garzik]

Scott Wood wrote:
> Signed-off-by: Scott Wood <scottwood@freescale.com>
> ---
>  drivers/net/fs_enet/fs_enet-main.c |   85 ++++++++++++++++-------------------
>  drivers/net/fs_enet/fs_enet.h      |    4 +-
>  drivers/net/fs_enet/mac-fcc.c      |    1 -
>  drivers/net/fs_enet/mii-fec.c      |    1 -
>  4 files changed, 41 insertions(+), 50 deletions(-)

ACK patches 2-7

[PATCH 3/7] fs_enet: Don't share the interrupt.

[Scott Wood]

This driver can't handle an interrupt immediately after request_irq
(making it fail with CONFIG_DEBUG_SHIRQ), and has unshared interrupts
on all hardware I'm aware of.

Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 drivers/net/fs_enet/fs_enet-main.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/net/fs_enet/fs_enet-main.c b/drivers/net/fs_enet/fs_enet-main.c
index f261b90..da79a45 100644
--- a/drivers/net/fs_enet/fs_enet-main.c
+++ b/drivers/net/fs_enet/fs_enet-main.c
@@ -667,7 +667,7 @@ static int fs_request_irq(struct net_device *dev, int irq, const char *name,
 	struct fs_enet_private *fep = netdev_priv(dev);
 
 	(*fep->ops->pre_request_irq)(dev, irq);
-	return request_irq(irq, irqf, IRQF_SHARED, name, dev);
+	return request_irq(irq, irqf, 0, name, dev);
 }
 
 static void fs_free_irq(struct net_device *dev, int irq)
-- 
1.5.0.3

[PATCH 4/7] fs_enet: mac-fcc: Eliminate __fcc-* macros.

[Scott Wood]

These macros accomplish nothing other than defeating type checking.

This patch also fixes one instance of the wrong register size being
used that was revealed by enabling type checking.

Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 drivers/net/fs_enet/mac-fcc.c |   25 ++++++++-----------------
 1 files changed, 8 insertions(+), 17 deletions(-)

diff --git a/drivers/net/fs_enet/mac-fcc.c b/drivers/net/fs_enet/mac-fcc.c
index ad3c5fa..8b30361 100644
--- a/drivers/net/fs_enet/mac-fcc.c
+++ b/drivers/net/fs_enet/mac-fcc.c
@@ -48,28 +48,19 @@
 
 /* FCC access macros */
 
-#define __fcc_out32(addr, x)	out_be32((unsigned *)addr, x)
-#define __fcc_out16(addr, x)	out_be16((unsigned short *)addr, x)
-#define __fcc_out8(addr, x)	out_8((unsigned char *)addr, x)
-#define __fcc_in32(addr)	in_be32((unsigned *)addr)
-#define __fcc_in16(addr)	in_be16((unsigned short *)addr)
-#define __fcc_in8(addr)		in_8((unsigned char *)addr)
-
-/* parameter space */
-
 /* write, read, set bits, clear bits */
-#define W32(_p, _m, _v)	__fcc_out32(&(_p)->_m, (_v))
-#define R32(_p, _m)	__fcc_in32(&(_p)->_m)
+#define W32(_p, _m, _v)	out_be32(&(_p)->_m, (_v))
+#define R32(_p, _m)	in_be32(&(_p)->_m)
 #define S32(_p, _m, _v)	W32(_p, _m, R32(_p, _m) | (_v))
 #define C32(_p, _m, _v)	W32(_p, _m, R32(_p, _m) & ~(_v))
 
-#define W16(_p, _m, _v)	__fcc_out16(&(_p)->_m, (_v))
-#define R16(_p, _m)	__fcc_in16(&(_p)->_m)
+#define W16(_p, _m, _v)	out_be16(&(_p)->_m, (_v))
+#define R16(_p, _m)	in_be16(&(_p)->_m)
 #define S16(_p, _m, _v)	W16(_p, _m, R16(_p, _m) | (_v))
 #define C16(_p, _m, _v)	W16(_p, _m, R16(_p, _m) & ~(_v))
 
-#define W8(_p, _m, _v)	__fcc_out8(&(_p)->_m, (_v))
-#define R8(_p, _m)	__fcc_in8(&(_p)->_m)
+#define W8(_p, _m, _v)	out_8(&(_p)->_m, (_v))
+#define R8(_p, _m)	in_8(&(_p)->_m)
 #define S8(_p, _m, _v)	W8(_p, _m, R8(_p, _m) | (_v))
 #define C8(_p, _m, _v)	W8(_p, _m, R8(_p, _m) & ~(_v))
 
@@ -290,7 +281,7 @@ static void restart(struct net_device *dev)
 
 	/* clear everything (slow & steady does it) */
 	for (i = 0; i < sizeof(*ep); i++)
-		__fcc_out8((char *)ep + i, 0);
+		out_8((char *)ep + i, 0);
 
 	/* get physical address */
 	rx_bd_base_phys = fep->ring_mem_addr;
@@ -495,7 +486,7 @@ static void tx_kickstart(struct net_device *dev)
 	struct fs_enet_private *fep = netdev_priv(dev);
 	fcc_t *fccp = fep->fcc.fccp;
 
-	S32(fccp, fcc_ftodr, 0x80);
+	S16(fccp, fcc_ftodr, 0x8000);
 }
 
 static u32 get_int_events(struct net_device *dev)
-- 
1.5.0.3

Re: [PATCH 4/7] fs_enet: mac-fcc: Eliminate __fcc-* macros.

[Vitaly Bordug]

On Fri, 17 Aug 2007 12:54:02 -0500
Scott Wood wrote:

> These macros accomplish nothing other than defeating type checking.
> 
> This patch also fixes one instance of the wrong register size being
> used that was revealed by enabling type checking.
> 
> Signed-off-by: Scott Wood <scottwood@freescale.com>
> ---
>  drivers/net/fs_enet/mac-fcc.c |   25 ++++++++-----------------
>  1 files changed, 8 insertions(+), 17 deletions(-)
> 
> diff --git a/drivers/net/fs_enet/mac-fcc.c
> b/drivers/net/fs_enet/mac-fcc.c index ad3c5fa..8b30361 100644
> --- a/drivers/net/fs_enet/mac-fcc.c
> +++ b/drivers/net/fs_enet/mac-fcc.c
> @@ -48,28 +48,19 @@
>  
>  /* FCC access macros */
>  
> -#define __fcc_out32(addr, x)	out_be32((unsigned *)addr, x)
> -#define __fcc_out16(addr, x)	out_be16((unsigned short *)addr,
> x) -#define __fcc_out8(addr, x)	out_8((unsigned char *)addr, x)
> -#define __fcc_in32(addr)	in_be32((unsigned *)addr)
> -#define __fcc_in16(addr)	in_be16((unsigned short *)addr)
> -#define __fcc_in8(addr)		in_8((unsigned char *)addr)
> -
> -/* parameter space */
> -
>  /* write, read, set bits, clear bits */
> -#define W32(_p, _m, _v)	__fcc_out32(&(_p)->_m, (_v))
> -#define R32(_p, _m)	__fcc_in32(&(_p)->_m)
> +#define W32(_p, _m, _v)	out_be32(&(_p)->_m, (_v))
> +#define R32(_p, _m)	in_be32(&(_p)->_m)
>  #define S32(_p, _m, _v)	W32(_p, _m, R32(_p, _m) | (_v))
>  #define C32(_p, _m, _v)	W32(_p, _m, R32(_p, _m) & ~(_v))
>  
> -#define W16(_p, _m, _v)	__fcc_out16(&(_p)->_m, (_v))
> -#define R16(_p, _m)	__fcc_in16(&(_p)->_m)
> +#define W16(_p, _m, _v)	out_be16(&(_p)->_m, (_v))
> +#define R16(_p, _m)	in_be16(&(_p)->_m)
>  #define S16(_p, _m, _v)	W16(_p, _m, R16(_p, _m) | (_v))
>  #define C16(_p, _m, _v)	W16(_p, _m, R16(_p, _m) & ~(_v))
>  
> -#define W8(_p, _m, _v)	__fcc_out8(&(_p)->_m, (_v))
> -#define R8(_p, _m)	__fcc_in8(&(_p)->_m)
> +#define W8(_p, _m, _v)	out_8(&(_p)->_m, (_v))
> +#define R8(_p, _m)	in_8(&(_p)->_m)
>  #define S8(_p, _m, _v)	W8(_p, _m, R8(_p, _m) | (_v))
>  #define C8(_p, _m, _v)	W8(_p, _m, R8(_p, _m) & ~(_v))
>  
> @@ -290,7 +281,7 @@ static void restart(struct net_device *dev)
>  
>  	/* clear everything (slow & steady does it) */
>  	for (i = 0; i < sizeof(*ep); i++)
> -		__fcc_out8((char *)ep + i, 0);
> +		out_8((char *)ep + i, 0);
>  
Perhaps W8() here, to keep consistency?


>  	/* get physical address */
>  	rx_bd_base_phys = fep->ring_mem_addr;
> @@ -495,7 +486,7 @@ static void tx_kickstart(struct net_device *dev)
>  	struct fs_enet_private *fep = netdev_priv(dev);
>  	fcc_t *fccp = fep->fcc.fccp;
>  
> -	S32(fccp, fcc_ftodr, 0x80);
> +	S16(fccp, fcc_ftodr, 0x8000);
>  }
>  
>  static u32 get_int_events(struct net_device *dev)


-- 
Sincerely, Vitaly

Re: [PATCH 4/7] fs_enet: mac-fcc: Eliminate __fcc-* macros.

[Scott Wood]

Vitaly Bordug wrote:
>>-#define W8(_p, _m, _v)	__fcc_out8(&(_p)->_m, (_v))
>>-#define R8(_p, _m)	__fcc_in8(&(_p)->_m)
>>+#define W8(_p, _m, _v)	out_8(&(_p)->_m, (_v))
>>+#define R8(_p, _m)	in_8(&(_p)->_m)
>> #define S8(_p, _m, _v)	W8(_p, _m, R8(_p, _m) | (_v))
>> #define C8(_p, _m, _v)	W8(_p, _m, R8(_p, _m) & ~(_v))
>> 
>>@@ -290,7 +281,7 @@ static void restart(struct net_device *dev)
>> 
>> 	/* clear everything (slow & steady does it) */
>> 	for (i = 0; i < sizeof(*ep); i++)
>>-		__fcc_out8((char *)ep + i, 0);
>>+		out_8((char *)ep + i, 0);
>> 
> 
> Perhaps W8() here, to keep consistency?

W8 expects a struct pointer and member, which we don't have here.

-Scott

Re: [PATCH 4/7] fs_enet: mac-fcc: Eliminate __fcc-* macros.

[Scott Wood]

Vitaly Bordug wrote:
>>-#define W8(_p, _m, _v)	__fcc_out8(&(_p)->_m, (_v))
>>-#define R8(_p, _m)	__fcc_in8(&(_p)->_m)
>>+#define W8(_p, _m, _v)	out_8(&(_p)->_m, (_v))
>>+#define R8(_p, _m)	in_8(&(_p)->_m)
>> #define S8(_p, _m, _v)	W8(_p, _m, R8(_p, _m) | (_v))
>> #define C8(_p, _m, _v)	W8(_p, _m, R8(_p, _m) & ~(_v))
>> 
>>@@ -290,7 +281,7 @@ static void restart(struct net_device *dev)
>> 
>> 	/* clear everything (slow & steady does it) */
>> 	for (i = 0; i < sizeof(*ep); i++)
>>-		__fcc_out8((char *)ep + i, 0);
>>+		out_8((char *)ep + i, 0);
>> 
> 
> Perhaps W8() here, to keep consistency?

W8 expects a struct pointer and member, which we don't have here.

-Scott

[PATCH 5/7] fs_enet: Align receive buffers.

[Scott Wood]

At least some hardware driven by this driver needs receive buffers
to be aligned on a 16-byte boundary.  This usually happens by chance,
but it breaks if slab debugging is enabled.

Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 drivers/net/fs_enet/fs_enet-main.c |   21 +++++++++++++++++++--
 drivers/net/fs_enet/fs_enet.h      |    3 ++-
 2 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/drivers/net/fs_enet/fs_enet-main.c b/drivers/net/fs_enet/fs_enet-main.c
index da79a45..a4b76cd 100644
--- a/drivers/net/fs_enet/fs_enet-main.c
+++ b/drivers/net/fs_enet/fs_enet-main.c
@@ -69,6 +69,14 @@ static void fs_set_multicast_list(struct net_device *dev)
 	(*fep->ops->set_multicast_list)(dev);
 }
 
+static void skb_align(struct sk_buff *skb, int align)
+{
+	int off = ((unsigned long)skb->data) & (align - 1);
+
+	if (off)
+		skb_reserve(skb, align - off);
+}
+
 /* NAPI receive function */
 static int fs_enet_rx_napi(struct net_device *dev, int *budget)
 {
@@ -166,9 +174,13 @@ static int fs_enet_rx_napi(struct net_device *dev, int *budget)
 					skb = skbn;
 					skbn = skbt;
 				}
-			} else
+			} else {
 				skbn = dev_alloc_skb(ENET_RX_FRSIZE);
 
+				if (skbn)
+					skb_align(skbn, ENET_RX_ALIGN);
+			}
+
 			if (skbn != NULL) {
 				skb_put(skb, pkt_len);	/* Make room */
 				skb->protocol = eth_type_trans(skb, dev);
@@ -300,9 +312,13 @@ static int fs_enet_rx_non_napi(struct net_device *dev)
 					skb = skbn;
 					skbn = skbt;
 				}
-			} else
+			} else {
 				skbn = dev_alloc_skb(ENET_RX_FRSIZE);
 
+				if (skbn)
+					skb_align(skbn, ENET_RX_ALIGN);
+			}
+
 			if (skbn != NULL) {
 				skb_put(skb, pkt_len);	/* Make room */
 				skb->protocol = eth_type_trans(skb, dev);
@@ -512,6 +528,7 @@ void fs_init_bds(struct net_device *dev)
 			       dev->name);
 			break;
 		}
+		skb_align(skb, ENET_RX_ALIGN);
 		fep->rx_skbuff[i] = skb;
 		CBDW_BUFADDR(bdp,
 			dma_map_single(fep->dev, skb->data,
diff --git a/drivers/net/fs_enet/fs_enet.h b/drivers/net/fs_enet/fs_enet.h
index 72a61e9..f8c7ee8 100644
--- a/drivers/net/fs_enet/fs_enet.h
+++ b/drivers/net/fs_enet/fs_enet.h
@@ -82,7 +82,8 @@ struct phy_info {
 /* Must be a multiple of 32 (to cover both FEC & FCC) */
 #define PKT_MAXBLR_SIZE		((PKT_MAXBUF_SIZE + 31) & ~31)
 /* This is needed so that invalidate_xxx wont invalidate too much */
-#define ENET_RX_FRSIZE		L1_CACHE_ALIGN(PKT_MAXBUF_SIZE)
+#define ENET_RX_ALIGN  16
+#define ENET_RX_FRSIZE L1_CACHE_ALIGN(PKT_MAXBUF_SIZE + ENET_RX_ALIGN - 1)
 
 struct fs_enet_mii_bus {
 	struct list_head list;
-- 
1.5.0.3

[PATCH 6/7] fs_enet: Be an of_platform device when CONFIG_PPC_CPM_NEW_BINDING is set.

[Scott Wood]

The existing OF glue code was crufty and broken.  Rather than fix it, it
will be removed, and the ethernet driver now talks to the device tree
directly.

The old, non-CONFIG_PPC_CPM_NEW_BINDING code can go away once CPM
platforms are dropped from arch/ppc (which will hopefully be soon), and
existing arch/powerpc boards that I wasn't able to test on for this
patchset get converted (which should be even sooner).

mii-bitbang.c now also uses the generic bitbang code.

Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 drivers/net/fs_enet/Kconfig        |    1 +
 drivers/net/fs_enet/fs_enet-main.c |  286 ++++++++++++++++++++++--
 drivers/net/fs_enet/fs_enet.h      |   55 +-----
 drivers/net/fs_enet/mac-fcc.c      |   89 ++++++--
 drivers/net/fs_enet/mac-fec.c      |   23 ++-
 drivers/net/fs_enet/mac-scc.c      |   55 +++--
 drivers/net/fs_enet/mii-bitbang.c  |  438 ++++++++++++++++-------------------
 drivers/net/fs_enet/mii-fec.c      |  140 ++++++++++++-
 include/linux/fs_enet_pd.h         |    5 +
 9 files changed, 740 insertions(+), 352 deletions(-)

diff --git a/drivers/net/fs_enet/Kconfig b/drivers/net/fs_enet/Kconfig
index e27ee21..2765e49 100644
--- a/drivers/net/fs_enet/Kconfig
+++ b/drivers/net/fs_enet/Kconfig
@@ -11,6 +11,7 @@ config FS_ENET_HAS_SCC
 config FS_ENET_HAS_FCC
 	bool "Chip has an FCC usable for ethernet"
 	depends on FS_ENET && CPM2
+	select MDIO_BITBANG
 	default y
 
 config FS_ENET_HAS_FEC
diff --git a/drivers/net/fs_enet/fs_enet-main.c b/drivers/net/fs_enet/fs_enet-main.c
index a4b76cd..33cdabf 100644
--- a/drivers/net/fs_enet/fs_enet-main.c
+++ b/drivers/net/fs_enet/fs_enet-main.c
@@ -44,12 +44,18 @@
 #include <asm/irq.h>
 #include <asm/uaccess.h>
 
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+#include <linux/of_platform.h>
+#endif
+
 #include "fs_enet.h"
 
 /*************************************************/
 
+#ifndef CONFIG_PPC_CPM_NEW_BINDING
 static char version[] __devinitdata =
     DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")" "\n";
+#endif
 
 MODULE_AUTHOR("Pantelis Antoniou <panto@intracom.gr>");
 MODULE_DESCRIPTION("Freescale Ethernet Driver");
@@ -953,6 +959,7 @@ static int fs_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 extern int fs_mii_connect(struct net_device *dev);
 extern void fs_mii_disconnect(struct net_device *dev);
 
+#ifndef CONFIG_PPC_CPM_NEW_BINDING
 static struct net_device *fs_init_instance(struct device *dev,
 		struct fs_platform_info *fpi)
 {
@@ -1132,6 +1139,7 @@ static int fs_cleanup_instance(struct net_device *ndev)
 
 	return 0;
 }
+#endif
 
 /**************************************************************************************/
 
@@ -1140,35 +1148,279 @@ void *fs_enet_immap = NULL;
 
 static int setup_immap(void)
 {
-	phys_addr_t paddr = 0;
-	unsigned long size = 0;
-
 #ifdef CONFIG_CPM1
-	paddr = IMAP_ADDR;
-	size = 0x10000;	/* map 64K */
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+	fs_enet_immap = mpc8xx_immr;
+#else
+	fs_enet_immap = ioremap(IMAP_ADDR, 0x4000);
+	WARN_ON(!fs_enet_immap);
 #endif
-
-#ifdef CONFIG_CPM2
-	paddr = CPM_MAP_ADDR;
-	size = 0x40000;	/* map 256 K */
+#elif defined(CONFIG_CPM2)
+	fs_enet_immap = cpm2_immr;
 #endif
-	fs_enet_immap = ioremap(paddr, size);
-	if (fs_enet_immap == NULL)
-		return -EBADF;	/* XXX ahem; maybe just BUG_ON? */
 
 	return 0;
 }
 
+#ifndef CONFIG_PPC_CPM_NEW_BINDING
 static void cleanup_immap(void)
 {
-	if (fs_enet_immap != NULL) {
-		iounmap(fs_enet_immap);
-		fs_enet_immap = NULL;
-	}
+#if defined(CONFIG_CPM1)
+	iounmap(fs_enet_immap);
+#endif
 }
+#endif
 
 /**************************************************************************************/
 
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+static int __devinit find_phy(struct device_node *np,
+                              struct fs_platform_info *fpi)
+{
+	struct device_node *phynode, *mdionode;
+	struct resource res;
+	int ret = 0, len;
+
+	const u32 *data = of_get_property(np, "phy-handle", &len);
+	if (!data || len != 4)
+		return -EINVAL;
+
+	phynode = of_find_node_by_phandle(*data);
+	if (!phynode)
+		return -EINVAL;
+
+	mdionode = of_get_parent(phynode);
+	if (!phynode)
+		goto out_put_phy;
+
+	ret = of_address_to_resource(mdionode, 0, &res);
+	if (ret)
+		goto out_put_mdio;
+
+	data = of_get_property(phynode, "reg", &len);
+	if (!data || len != 4)
+		goto out_put_mdio;
+
+	snprintf(fpi->bus_id, 16, PHY_ID_FMT, res.start, *data);
+
+out_put_mdio:
+	of_node_put(mdionode);
+out_put_phy:
+	of_node_put(phynode);
+	return ret;
+}
+
+#ifdef CONFIG_FS_ENET_HAS_FEC
+#define IS_FEC(match) ((match)->data == &fs_fec_ops)
+#else
+#define IS_FEC(match) 0
+#endif
+
+static int __devinit fs_enet_probe(struct of_device *ofdev,
+                                   const struct of_device_id *match)
+{
+	struct net_device *ndev;
+	struct fs_enet_private *fep;
+	struct fs_platform_info *fpi;
+	const u32 *data;
+	const u8 *mac_addr;
+	int privsize, len, ret = -ENODEV;
+
+	fpi = kzalloc(sizeof(*fpi), GFP_KERNEL);
+	if (!fpi)
+		return -ENOMEM;
+
+	if (!IS_FEC(match)) {
+		data = of_get_property(ofdev->node, "fsl,cpm-command", &len);
+		if (!data || len != 4)
+			goto out_free_fpi;
+
+		fpi->cp_command = *data;
+	}
+
+	fpi->rx_ring = 32;
+	fpi->tx_ring = 32;
+	fpi->rx_copybreak = 240;
+	fpi->use_napi = 0;
+	fpi->napi_weight = 17;
+
+	ret = find_phy(ofdev->node, fpi);
+	if (ret)
+		goto out_free_fpi;
+
+	privsize = sizeof(*fep) +
+	           sizeof(struct sk_buff **) *
+	           (fpi->rx_ring + fpi->tx_ring);
+
+	ndev = alloc_etherdev(privsize);
+	if (!ndev) {
+		ret = -ENOMEM;
+		goto out_free_fpi;
+	}
+
+	SET_MODULE_OWNER(ndev);
+	dev_set_drvdata(&ofdev->dev, ndev);
+
+	fep = netdev_priv(ndev);
+	fep->dev = &ofdev->dev;
+	fep->fpi = fpi;
+	fep->ops = match->data;
+
+	ret = fep->ops->setup_data(ndev);
+	if (ret)
+		goto out_free_dev;
+
+	fep->rx_skbuff = (struct sk_buff **)&fep[1];
+	fep->tx_skbuff = fep->rx_skbuff + fpi->rx_ring;
+
+	spin_lock_init(&fep->lock);
+	spin_lock_init(&fep->tx_lock);
+
+	mac_addr = of_get_mac_address(ofdev->node);
+	if (mac_addr)
+		memcpy(ndev->dev_addr, mac_addr, 6);
+
+	ret = fep->ops->allocate_bd(ndev);
+	if (ret)
+		goto out_cleanup_data;
+
+	fep->rx_bd_base = fep->ring_base;
+	fep->tx_bd_base = fep->rx_bd_base + fpi->rx_ring;
+
+	fep->tx_ring = fpi->tx_ring;
+	fep->rx_ring = fpi->rx_ring;
+
+	ndev->open = fs_enet_open;
+	ndev->hard_start_xmit = fs_enet_start_xmit;
+	ndev->tx_timeout = fs_timeout;
+	ndev->watchdog_timeo = 2 * HZ;
+	ndev->stop = fs_enet_close;
+	ndev->get_stats = fs_enet_get_stats;
+	ndev->set_multicast_list = fs_set_multicast_list;
+	if (fpi->use_napi) {
+		ndev->poll = fs_enet_rx_napi;
+		ndev->weight = fpi->napi_weight;
+	}
+	ndev->ethtool_ops = &fs_ethtool_ops;
+	ndev->do_ioctl = fs_ioctl;
+
+	init_timer(&fep->phy_timer_list);
+
+	netif_carrier_off(ndev);
+
+	ret = register_netdev(ndev);
+	if (ret)
+		goto out_free_bd;
+
+	printk(KERN_INFO "%s: fs_enet: %02x:%02x:%02x:%02x:%02x:%02x\n",
+	       ndev->name,
+	       ndev->dev_addr[0], ndev->dev_addr[1], ndev->dev_addr[2],
+	       ndev->dev_addr[3], ndev->dev_addr[4], ndev->dev_addr[5]);
+
+	return 0;
+
+out_free_bd:
+	fep->ops->free_bd(ndev);
+out_cleanup_data:
+	fep->ops->cleanup_data(ndev);
+out_free_dev:
+	free_netdev(ndev);
+	dev_set_drvdata(&ofdev->dev, NULL);
+out_free_fpi:
+	kfree(fpi);
+	return ret;
+}
+
+static int fs_enet_remove(struct of_device *ofdev)
+{
+	struct net_device *ndev = dev_get_drvdata(&ofdev->dev);
+	struct fs_enet_private *fep = netdev_priv(ndev);
+
+	unregister_netdev(ndev);
+
+	fep->ops->free_bd(ndev);
+	fep->ops->cleanup_data(ndev);
+	dev_set_drvdata(fep->dev, NULL);
+
+	free_netdev(ndev);
+	return 0;
+}
+
+static struct of_device_id fs_enet_match[] = {
+#ifdef CONFIG_FS_ENET_HAS_SCC
+	{
+		.compatible = "fsl,cpm1-scc-enet",
+		.data = (void *)&fs_scc_ops,
+	},
+#endif
+#ifdef CONFIG_FS_ENET_HAS_FCC
+	{
+		.compatible = "fsl,cpm2-fcc-enet",
+		.data = (void *)&fs_fcc_ops,
+	},
+#endif
+#ifdef CONFIG_FS_ENET_HAS_FEC
+	{
+		.compatible = "fsl,pq1-fec-enet",
+		.data = (void *)&fs_fec_ops,
+	},
+#endif
+	{}
+};
+
+static struct of_platform_driver fs_enet_driver = {
+	.name	= "fs_enet",
+	.match_table = fs_enet_match,
+	.probe = fs_enet_probe,
+	.remove = fs_enet_remove,
+};
+
+static int __init fs_init(void)
+{
+	int r = setup_immap();
+	if (r != 0)
+		return r;
+
+#ifdef CONFIG_CPM2
+	r = fs_enet_mdio_bb_init();
+	if (r != 0)
+		goto out_mdio_bb;
+#endif
+#ifdef CONFIG_8xx
+	r = fs_enet_mdio_fec_init();
+	if (r != 0)
+		goto out_mdio_fec;
+#endif
+
+	r = of_register_platform_driver(&fs_enet_driver);
+	if (r != 0)
+		goto out_driver;
+
+	return 0;
+
+out_driver:
+#ifdef CONFIG_8xx
+	fs_enet_mdio_fec_exit();
+out_mdio_fec:
+#endif
+#ifdef CONFIG_CPM2
+	fs_enet_mdio_bb_exit();
+out_mdio_bb:
+#endif
+	return r;
+}
+
+static void __exit fs_cleanup(void)
+{
+	of_unregister_platform_driver(&fs_enet_driver);
+#ifdef CONFIG_8xx
+	fs_enet_mdio_fec_exit();
+#endif
+#ifdef CONFIG_CPM2
+	fs_enet_mdio_bb_exit();
+#endif
+}
+#else
 static int __devinit fs_enet_probe(struct device *dev)
 {
 	struct net_device *ndev;
@@ -1282,7 +1534,7 @@ static void __exit fs_cleanup(void)
 	driver_unregister(&fs_enet_scc_driver);
 	cleanup_immap();
 }
-
+#endif
 /**************************************************************************************/
 
 module_init(fs_init);
diff --git a/drivers/net/fs_enet/fs_enet.h b/drivers/net/fs_enet/fs_enet.h
index f8c7ee8..a130332 100644
--- a/drivers/net/fs_enet/fs_enet.h
+++ b/drivers/net/fs_enet/fs_enet.h
@@ -24,19 +24,6 @@ struct fec_info {
 #include <asm/cpm2.h>
 #endif
 
-/* This is used to operate with pins.
-  Note that the actual port size may
-    be different; cpm(s) handle it OK  */
-struct bb_info {
-	u8 mdio_dat_msk;
-	u8 mdio_dir_msk;
-	u8 *mdio_dir;
-	u8 *mdio_dat;
-	u8 mdc_msk;
-	u8 *mdc_dat;
-	int delay;
-};
-
 /* hw driver ops */
 struct fs_ops {
 	int (*setup_data)(struct net_device *dev);
@@ -85,47 +72,11 @@ struct phy_info {
 #define ENET_RX_ALIGN  16
 #define ENET_RX_FRSIZE L1_CACHE_ALIGN(PKT_MAXBUF_SIZE + ENET_RX_ALIGN - 1)
 
-struct fs_enet_mii_bus {
-	struct list_head list;
-	spinlock_t mii_lock;
-	const struct fs_mii_bus_info *bus_info;
-	int refs;
-	u32 usage_map;
-
-	int (*mii_read)(struct fs_enet_mii_bus *bus,
-			int phy_id, int location);
-
-	void (*mii_write)(struct fs_enet_mii_bus *bus,
-			int phy_id, int location, int value);
-
-	union {
-		struct {
-			unsigned int mii_speed;
-			void *fecp;
-		} fec;
-
-		struct {
-			/* note that the actual port size may */
-			/* be different; cpm(s) handle it OK  */
-			u8 mdio_msk;
-			u8 *mdio_dir;
-			u8 *mdio_dat;
-			u8 mdc_msk;
-			u8 *mdc_dir;
-			u8 *mdc_dat;
-		} bitbang;
-
-		struct {
-			u16 lpa;
-		} fixed;
-	};
-};
-
 struct fs_enet_private {
 	struct device *dev;	/* pointer back to the device (must be initialized first) */
 	spinlock_t lock;	/* during all ops except TX pckt processing */
 	spinlock_t tx_lock;	/* during fs_start_xmit and fs_tx         */
-	const struct fs_platform_info *fpi;
+	struct fs_platform_info *fpi;
 	const struct fs_ops *ops;
 	int rx_ring, tx_ring;
 	dma_addr_t ring_mem_addr;
@@ -144,7 +95,6 @@ struct fs_enet_private {
 	u32 msg_enable;
 	struct mii_if_info mii_if;
 	unsigned int last_mii_status;
-	struct fs_enet_mii_bus *mii_bus;
 	int interrupt;
 
 	struct phy_device *phydev;
@@ -187,8 +137,9 @@ struct fs_enet_private {
 
 /***************************************************************************/
 int fs_enet_mdio_bb_init(void);
-int fs_mii_fixed_init(struct fs_enet_mii_bus *bus);
+void fs_enet_mdio_bb_exit(void);
 int fs_enet_mdio_fec_init(void);
+void fs_enet_mdio_fec_exit(void);
 
 void fs_init_bds(struct net_device *dev);
 void fs_cleanup_bds(struct net_device *dev);
diff --git a/drivers/net/fs_enet/mac-fcc.c b/drivers/net/fs_enet/mac-fcc.c
index 8b30361..10e2a2b 100644
--- a/drivers/net/fs_enet/mac-fcc.c
+++ b/drivers/net/fs_enet/mac-fcc.c
@@ -42,6 +42,10 @@
 #include <asm/irq.h>
 #include <asm/uaccess.h>
 
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+#include <linux/of_device.h>
+#endif
+
 #include "fs_enet.h"
 
 /*************************************************/
@@ -74,33 +78,64 @@
 
 #define MAX_CR_CMD_LOOPS	10000
 
-static inline int fcc_cr_cmd(struct fs_enet_private *fep, u32 mcn, u32 op)
+static inline int fcc_cr_cmd(struct fs_enet_private *fep, u32 op)
 {
 	const struct fs_platform_info *fpi = fep->fpi;
 	cpm2_map_t *immap = fs_enet_immap;
 	cpm_cpm2_t *cpmp = &immap->im_cpm;
-	u32 v;
 	int i;
 
-	/* Currently I don't know what feature call will look like. But 
-	   I guess there'd be something like do_cpm_cmd() which will require page & sblock */
-	v = mk_cr_cmd(fpi->cp_page, fpi->cp_block, mcn, op);
-	W32(cpmp, cp_cpcr, v | CPM_CR_FLG);
+	W32(cpmp, cp_cpcr, fpi->cp_command | op | CPM_CR_FLG);
 	for (i = 0; i < MAX_CR_CMD_LOOPS; i++)
 		if ((R32(cpmp, cp_cpcr) & CPM_CR_FLG) == 0)
-			break;
-
-	if (i >= MAX_CR_CMD_LOOPS) {
-		printk(KERN_ERR "%s(): Not able to issue CPM command\n",
-		       __FUNCTION__);
-		return 1;
-	}
+			return 0;
 
-	return 0;
+	printk(KERN_ERR "%s(): Not able to issue CPM command\n",
+	       __FUNCTION__);
+	return 1;
 }
 
 static int do_pd_setup(struct fs_enet_private *fep)
 {
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+	struct of_device *ofdev = to_of_device(fep->dev);
+	struct fs_platform_info *fpi = fep->fpi;
+	int ret = -EINVAL;
+
+	fep->interrupt = of_irq_to_resource(ofdev->node, 0, NULL);
+	if (fep->interrupt == NO_IRQ)
+		goto out;
+
+	fep->fcc.fccp = of_iomap(ofdev->node, 0);
+	if (!fep->fcc.fccp)
+		goto out;
+
+	fep->fcc.ep = of_iomap(ofdev->node, 1);
+	if (!fep->fcc.ep)
+		goto out_fccp;
+
+	fep->fcc.fcccp = of_iomap(ofdev->node, 2);
+	if (!fep->fcc.fcccp)
+		goto out_ep;
+
+	fep->fcc.mem = (void *)cpm_dpalloc(128, 8);
+	fpi->dpram_offset = (u32)cpm2_immr;
+	if (IS_ERR_VALUE(fpi->dpram_offset)) {
+		ret = fpi->dpram_offset;
+		goto out_fcccp;
+	}
+
+	return 0;
+
+out_fcccp:
+	iounmap(fep->fcc.fcccp);
+out_ep:
+	iounmap(fep->fcc.ep);
+out_fccp:
+	iounmap(fep->fcc.fccp);
+out:
+	return ret;
+#else
 	struct platform_device *pdev = to_platform_device(fep->dev);
 	struct resource *r;
 
@@ -138,6 +173,7 @@ static int do_pd_setup(struct fs_enet_private *fep)
 		return -EINVAL;
 
 	return 0;
+#endif
 }
 
 #define FCC_NAPI_RX_EVENT_MSK	(FCC_ENET_RXF | FCC_ENET_RXB)
@@ -148,11 +184,17 @@ static int do_pd_setup(struct fs_enet_private *fep)
 static int setup_data(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	const struct fs_platform_info *fpi = fep->fpi;
+#ifndef CONFIG_PPC_CPM_NEW_BINDING
+	struct fs_platform_info *fpi = fep->fpi;
+
+	fpi->cp_command = (fpi->cp_page << 26) |
+	                  (fpi->cp_block << 21) |
+	                  (12 << 6);
 
 	fep->fcc.idx = fs_get_fcc_index(fpi->fs_no);
 	if ((unsigned int)fep->fcc.idx >= 3)	/* max 3 FCCs */
 		return -EINVAL;
+#endif
 
 	if (do_pd_setup(fep) != 0)
 		return -EINVAL;
@@ -226,7 +268,7 @@ static void set_multicast_one(struct net_device *dev, const u8 *mac)
 	W16(ep, fen_taddrh, taddrh);
 	W16(ep, fen_taddrm, taddrm);
 	W16(ep, fen_taddrl, taddrl);
-	fcc_cr_cmd(fep, 0x0C, CPM_CR_SET_GADDR);
+	fcc_cr_cmd(fep, CPM_CR_SET_GADDR);
 }
 
 static void set_multicast_finish(struct net_device *dev)
@@ -281,7 +323,7 @@ static void restart(struct net_device *dev)
 
 	/* clear everything (slow & steady does it) */
 	for (i = 0; i < sizeof(*ep); i++)
-		out_8((char *)ep + i, 0);
+		out_8((u8 __iomem *)ep + i, 0);
 
 	/* get physical address */
 	rx_bd_base_phys = fep->ring_mem_addr;
@@ -397,7 +439,7 @@ static void restart(struct net_device *dev)
 			S8(fcccp, fcc_gfemr, 0x20);
 	}
 
-	fcc_cr_cmd(fep, 0x0c, CPM_CR_INIT_TRX);
+	fcc_cr_cmd(fep, CPM_CR_INIT_TRX);
 
 	/* clear events */
 	W16(fccp, fcc_fcce, 0xffff);
@@ -515,23 +557,22 @@ int get_regs(struct net_device *dev, void *p, int *sizep)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
 
-	if (*sizep < sizeof(fcc_t) + sizeof(fcc_c_t) + sizeof(fcc_enet_t))
+	if (*sizep < sizeof(fcc_t) + sizeof(fcc_enet_t) + 1)
 		return -EINVAL;
 
 	memcpy_fromio(p, fep->fcc.fccp, sizeof(fcc_t));
 	p = (char *)p + sizeof(fcc_t);
 
-	memcpy_fromio(p, fep->fcc.fcccp, sizeof(fcc_c_t));
-	p = (char *)p + sizeof(fcc_c_t);
-
 	memcpy_fromio(p, fep->fcc.ep, sizeof(fcc_enet_t));
+	p = (char *)p + sizeof(fcc_enet_t);
 
+	memcpy_fromio(p, fep->fcc.fcccp, 1);
 	return 0;
 }
 
 int get_regs_len(struct net_device *dev)
 {
-	return sizeof(fcc_t) + sizeof(fcc_c_t) + sizeof(fcc_enet_t);
+	return sizeof(fcc_t) + sizeof(fcc_enet_t) + 1;
 }
 
 /* Some transmit errors cause the transmitter to shut
@@ -551,7 +592,7 @@ void tx_restart(struct net_device *dev)
 	udelay(10);
 	S32(fccp, fcc_gfmr, FCC_GFMR_ENT);
 
-	fcc_cr_cmd(fep, 0x0C, CPM_CR_RESTART_TX);
+	fcc_cr_cmd(fep, CPM_CR_RESTART_TX);
 }
 
 /*************************************************************************/
diff --git a/drivers/net/fs_enet/mac-fec.c b/drivers/net/fs_enet/mac-fec.c
index 04b4f80..ef305e2 100644
--- a/drivers/net/fs_enet/mac-fec.c
+++ b/drivers/net/fs_enet/mac-fec.c
@@ -43,6 +43,10 @@
 #include <asm/commproc.h>
 #endif
 
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+#include <linux/of_device.h>
+#endif
+
 #include "fs_enet.h"
 #include "fec.h"
 
@@ -95,6 +99,19 @@ static int whack_reset(fec_t * fecp)
 
 static int do_pd_setup(struct fs_enet_private *fep)
 {
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+	struct of_device *ofdev = to_of_device(fep->dev);
+
+	fep->interrupt = of_irq_to_resource(ofdev->node, 0, NULL);
+	if (fep->interrupt == NO_IRQ)
+		return -EINVAL;
+
+	fep->fec.fecp = of_iomap(ofdev->node, 0);
+	if (!fep->fcc.fccp)
+		return -EINVAL;
+
+	return 0;
+#else
 	struct platform_device *pdev = to_platform_device(fep->dev); 
 	struct resource	*r;
 	
@@ -110,7 +127,7 @@ static int do_pd_setup(struct fs_enet_private *fep)
 		return -EINVAL;
 
 	return 0;
-	
+#endif
 }
 
 #define FEC_NAPI_RX_EVENT_MSK	(FEC_ENET_RXF | FEC_ENET_RXB)
@@ -317,7 +334,7 @@ static void restart(struct net_device *dev)
 	 * Clear any outstanding interrupt.
 	 */
 	FW(fecp, ievent, 0xffc0);
-#ifndef CONFIG_PPC_MERGE
+#ifndef CONFIG_PPC_CPM_NEW_BINDING
 	FW(fecp, ivec, (fep->interrupt / 2) << 29);
 #else
 	FW(fecp, ivec, (virq_to_hw(fep->interrupt) / 2) << 29);
@@ -419,7 +436,7 @@ static void stop(struct net_device *dev)
 
 static void pre_request_irq(struct net_device *dev, int irq)
 {
-#ifndef CONFIG_PPC_MERGE
+#ifndef CONFIG_PPC_CPM_NEW_BINDING
 	immap_t *immap = fs_enet_immap;
 	u32 siel;
 
diff --git a/drivers/net/fs_enet/mac-scc.c b/drivers/net/fs_enet/mac-scc.c
index 7540966..6ec6b7d 100644
--- a/drivers/net/fs_enet/mac-scc.c
+++ b/drivers/net/fs_enet/mac-scc.c
@@ -43,6 +43,10 @@
 #include <asm/commproc.h>
 #endif
 
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+#include <linux/of_platform.h>
+#endif
+
 #include "fs_enet.h"
 
 /*************************************************/
@@ -89,27 +93,38 @@
 
 static inline int scc_cr_cmd(struct fs_enet_private *fep, u32 op)
 {
-	cpm8xx_t *cpmp = &((immap_t *)fs_enet_immap)->im_cpm;
-	u32 v, ch;
-	int i = 0;
+	const struct fs_platform_info *fpi = fep->fpi;
+	int i;
 
-	ch = fep->scc.idx << 2;
-	v = mk_cr_cmd(ch, op);
-	W16(cpmp, cp_cpcr, v | CPM_CR_FLG);
+	W16(cpmp, cp_cpcr, fpi->cp_command | CPM_CR_FLG | (op << 8));
 	for (i = 0; i < MAX_CR_CMD_LOOPS; i++)
 		if ((R16(cpmp, cp_cpcr) & CPM_CR_FLG) == 0)
-			break;
+			return 0;
 
-	if (i >= MAX_CR_CMD_LOOPS) {
-		printk(KERN_ERR "%s(): Not able to issue CPM command\n",
-			__FUNCTION__);
-		return 1;
-	}
-	return 0;
+	printk(KERN_ERR "%s(): Not able to issue CPM command\n",
+		__FUNCTION__);
+	return 1;
 }
 
 static int do_pd_setup(struct fs_enet_private *fep)
 {
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+	struct of_device *ofdev = to_of_device(fep->dev);
+
+	fep->interrupt = of_irq_to_resource(ofdev->node, 0, NULL);
+	if (fep->interrupt == NO_IRQ)
+		return -EINVAL;
+
+	fep->scc.sccp = of_iomap(ofdev->node, 0);
+	if (!fep->scc.sccp)
+		return -EINVAL;
+
+	fep->scc.ep = of_iomap(ofdev->node, 1);
+	if (!fep->scc.ep) {
+		iounmap(fep->scc.sccp);
+		return -EINVAL;
+	}
+#else
 	struct platform_device *pdev = to_platform_device(fep->dev);
 	struct resource *r;
 
@@ -129,6 +144,7 @@ static int do_pd_setup(struct fs_enet_private *fep)
 
 	if (fep->scc.ep == NULL)
 		return -EINVAL;
+#endif
 
 	return 0;
 }
@@ -141,12 +157,17 @@ static int do_pd_setup(struct fs_enet_private *fep)
 static int setup_data(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	const struct fs_platform_info *fpi = fep->fpi;
+
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+	struct fs_platform_info *fpi = fep->fpi;
 
 	fep->scc.idx = fs_get_scc_index(fpi->fs_no);
-	if ((unsigned int)fep->fcc.idx > 4)	/* max 4 SCCs */
+	if ((unsigned int)fep->fcc.idx >= 4) /* max 4 SCCs */
 		return -EINVAL;
 
+	fpi->cp_command = fep->fcc.idx << 6;
+#endif
+
 	do_pd_setup(fep);
 
 	fep->scc.hthi = 0;
@@ -154,7 +175,7 @@ static int setup_data(struct net_device *dev)
 
 	fep->ev_napi_rx = SCC_NAPI_RX_EVENT_MSK;
 	fep->ev_rx = SCC_RX_EVENT;
-	fep->ev_tx = SCC_TX_EVENT;
+	fep->ev_tx = SCC_TX_EVENT | SCCE_ENET_TXE;
 	fep->ev_err = SCC_ERR_EVENT_MSK;
 
 	return 0;
@@ -395,7 +416,7 @@ static void stop(struct net_device *dev)
 
 static void pre_request_irq(struct net_device *dev, int irq)
 {
-#ifndef CONFIG_PPC_MERGE
+#ifndef CONFIG_PPC_CPM_NEW_BINDING
 	immap_t *immap = fs_enet_immap;
 	u32 siel;
 
diff --git a/drivers/net/fs_enet/mii-bitbang.c b/drivers/net/fs_enet/mii-bitbang.c
index d384010..fc92ec7 100644
--- a/drivers/net/fs_enet/mii-bitbang.c
+++ b/drivers/net/fs_enet/mii-bitbang.c
@@ -14,301 +14,267 @@
 
 
 #include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/ptrace.h>
-#include <linux/errno.h>
+#include <linux/init.h>
 #include <linux/ioport.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/mii.h>
-#include <linux/ethtool.h>
-#include <linux/bitops.h>
 #include <linux/platform_device.h>
+#include <linux/mdio-bitbang.h>
 
-#include <asm/pgtable.h>
-#include <asm/irq.h>
-#include <asm/uaccess.h>
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+#include <linux/of_platform.h>
+#endif
 
 #include "fs_enet.h"
 
-static int bitbang_prep_bit(u8 **datp, u8 *mskp,
-		struct fs_mii_bit *mii_bit)
-{
-	void *dat;
-	int adv;
-	u8 msk;
-
-	dat = (void*) mii_bit->offset;
-
-	adv = mii_bit->bit >> 3;
-	dat = (char *)dat + adv;
-
-	msk = 1 << (7 - (mii_bit->bit & 7));
-
-	*datp = dat;
-	*mskp = msk;
-
-	return 0;
-}
+struct bb_info {
+	struct mdio_bitbang_ctrl ctrl;
+	__be32 __iomem *dir;
+	__be32 __iomem *dat;
+	u32 mdio_msk;
+	u32 mdc_msk;
+	int delay;
+};
 
-static inline void bb_set(u8 *p, u8 m)
+/* FIXME: If any other users of GPIO crop up, then these will have to
+ * have some sort of global synchronization to avoid races with other
+ * pins on the same port.  The ideal solution would probably be to
+ * bind the ports to a GPIO driver, and have this be a client of it.
+ */
+static inline void bb_set(u32 __iomem *p, u32 m)
 {
-	out_8(p, in_8(p) | m);
+	out_be32(p, in_be32(p) | m);
 }
 
-static inline void bb_clr(u8 *p, u8 m)
+static inline void bb_clr(u32 __iomem *p, u32 m)
 {
-	out_8(p, in_8(p) & ~m);
+	out_be32(p, in_be32(p) & ~m);
 }
 
-static inline int bb_read(u8 *p, u8 m)
+static inline int bb_read(u32 __iomem *p, u32 m)
 {
-	return (in_8(p) & m) != 0;
+	return (in_be32(p) & m) != 0;
 }
 
-static inline void mdio_active(struct bb_info *bitbang)
+static inline void mdio_dir(struct mdio_bitbang_ctrl *ctrl, int dir)
 {
-	bb_set(bitbang->mdio_dir, bitbang->mdio_dir_msk);
-}
+	struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl);
 
-static inline void mdio_tristate(struct bb_info *bitbang )
-{
-	bb_clr(bitbang->mdio_dir, bitbang->mdio_dir_msk);
+	if (dir)
+		bb_set(bitbang->dir, bitbang->mdio_msk);
+	else
+		bb_clr(bitbang->dir, bitbang->mdio_msk);
 }
 
-static inline int mdio_read(struct bb_info *bitbang )
+static inline int mdio_read(struct mdio_bitbang_ctrl *ctrl)
 {
-	return bb_read(bitbang->mdio_dat, bitbang->mdio_dat_msk);
+	struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl);
+	return bb_read(bitbang->dat, bitbang->mdio_msk);
 }
 
-static inline void mdio(struct bb_info *bitbang , int what)
+static inline void mdio(struct mdio_bitbang_ctrl *ctrl, int what)
 {
+	struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl);
+
 	if (what)
-		bb_set(bitbang->mdio_dat, bitbang->mdio_dat_msk);
+		bb_set(bitbang->dat, bitbang->mdio_msk);
 	else
-		bb_clr(bitbang->mdio_dat, bitbang->mdio_dat_msk);
+		bb_clr(bitbang->dat, bitbang->mdio_msk);
 }
 
-static inline void mdc(struct bb_info *bitbang , int what)
+static inline void mdc(struct mdio_bitbang_ctrl *ctrl, int what)
 {
+	struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl);
+
 	if (what)
-		bb_set(bitbang->mdc_dat, bitbang->mdc_msk);
+		bb_set(bitbang->dat, bitbang->mdc_msk);
 	else
-		bb_clr(bitbang->mdc_dat, bitbang->mdc_msk);
+		bb_clr(bitbang->dat, bitbang->mdc_msk);
 }
 
-static inline void mii_delay(struct bb_info *bitbang )
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+static int __devinit fs_mii_bitbang_init(struct mii_bus *bus,
+                                         struct device_node *np)
 {
-	udelay(bitbang->delay);
+	struct resource res;
+	const u32 *data;
+	int mdio_pin, mdc_pin, len;
+	struct bb_info *bitbang = bus->priv;
+
+	int ret = of_address_to_resource(np, 0, &res);
+	if (ret)
+		return ret;
+
+	if (res.end - res.start < 13)
+		return -ENODEV;
+
+	/* This should really encode the pin number as well, but all
+	 * we get is an int, and the odds of multiple bitbang mdio buses
+	 * is low enough that it's not worth going too crazy.
+	 */
+	bus->id = res.start;
+
+	data = of_get_property(np, "fsl,mdio-pin", &len);
+	if (!data || len != 4)
+		return -ENODEV;
+	mdio_pin = *data;
+
+	data = of_get_property(np, "fsl,mdc-pin", &len);
+	if (!data || len != 4)
+		return -ENODEV;
+	mdc_pin = *data;
+
+	bitbang->dir = ioremap(res.start, res.end - res.start + 1);
+	if (!bitbang->dir)
+		return -ENOMEM;
+
+	bitbang->dat = bitbang->dir + 4;
+	bitbang->mdio_msk = 1 << (31 - mdio_pin);
+	bitbang->mdc_msk = 1 << (31 - mdc_pin);
+	bitbang->delay = 1; /* 1 us between operations */
+
+	return 0;
 }
 
-/* Utility to send the preamble, address, and register (common to read and write). */
-static void bitbang_pre(struct bb_info *bitbang , int read, u8 addr, u8 reg)
+static void __devinit add_phy(struct mii_bus *bus, struct device_node *np)
 {
-	int j;
-
-	/*
-	 * Send a 32 bit preamble ('1's) with an extra '1' bit for good measure.
-	 * The IEEE spec says this is a PHY optional requirement.  The AMD
-	 * 79C874 requires one after power up and one after a MII communications
-	 * error.  This means that we are doing more preambles than we need,
-	 * but it is safer and will be much more robust.
-	 */
+	const u32 *data;
+	int len, id, irq;
 
-	mdio_active(bitbang);
-	mdio(bitbang, 1);
-	for (j = 0; j < 32; j++) {
-		mdc(bitbang, 0);
-		mii_delay(bitbang);
-		mdc(bitbang, 1);
-		mii_delay(bitbang);
-	}
+	data = of_get_property(np, "reg", &len);
+	if (!data || len != 4)
+		return;
 
-	/* send the start bit (01) and the read opcode (10) or write (10) */
-	mdc(bitbang, 0);
-	mdio(bitbang, 0);
-	mii_delay(bitbang);
-	mdc(bitbang, 1);
-	mii_delay(bitbang);
-	mdc(bitbang, 0);
-	mdio(bitbang, 1);
-	mii_delay(bitbang);
-	mdc(bitbang, 1);
-	mii_delay(bitbang);
-	mdc(bitbang, 0);
-	mdio(bitbang, read);
-	mii_delay(bitbang);
-	mdc(bitbang, 1);
-	mii_delay(bitbang);
-	mdc(bitbang, 0);
-	mdio(bitbang, !read);
-	mii_delay(bitbang);
-	mdc(bitbang, 1);
-	mii_delay(bitbang);
-
-	/* send the PHY address */
-	for (j = 0; j < 5; j++) {
-		mdc(bitbang, 0);
-		mdio(bitbang, (addr & 0x10) != 0);
-		mii_delay(bitbang);
-		mdc(bitbang, 1);
-		mii_delay(bitbang);
-		addr <<= 1;
-	}
+	id = *data;
+	bus->phy_mask &= ~(1 << id);
 
-	/* send the register address */
-	for (j = 0; j < 5; j++) {
-		mdc(bitbang, 0);
-		mdio(bitbang, (reg & 0x10) != 0);
-		mii_delay(bitbang);
-		mdc(bitbang, 1);
-		mii_delay(bitbang);
-		reg <<= 1;
-	}
+	irq = of_irq_to_resource(np, 0, NULL);
+	if (irq != NO_IRQ)
+		bus->irq[id] = irq;
 }
 
-static int fs_enet_mii_bb_read(struct mii_bus *bus , int phy_id, int location)
+static struct mdio_bitbang_ops bb_ops = {
+	.owner = THIS_MODULE,
+	.set_mdc = mdc,
+	.set_mdio_dir = mdio_dir,
+	.set_mdio_data = mdio,
+	.get_mdio_data = mdio_read,
+};
+
+static int __devinit fs_enet_mdio_probe(struct of_device *ofdev,
+                                        const struct of_device_id *match)
 {
-	u16 rdreg;
-	int ret, j;
-	u8 addr = phy_id & 0xff;
-	u8 reg = location & 0xff;
-	struct bb_info* bitbang = bus->priv;
-
-	bitbang_pre(bitbang, 1, addr, reg);
-
-	/* tri-state our MDIO I/O pin so we can read */
-	mdc(bitbang, 0);
-	mdio_tristate(bitbang);
-	mii_delay(bitbang);
-	mdc(bitbang, 1);
-	mii_delay(bitbang);
-
-	/* check the turnaround bit: the PHY should be driving it to zero */
-	if (mdio_read(bitbang) != 0) {
-		/* PHY didn't drive TA low */
-		for (j = 0; j < 32; j++) {
-			mdc(bitbang, 0);
-			mii_delay(bitbang);
-			mdc(bitbang, 1);
-			mii_delay(bitbang);
-		}
-		ret = -1;
+	struct device_node *np = NULL;
+	struct mii_bus *new_bus;
+	struct bb_info *bitbang;
+	int ret = -ENOMEM;
+	int i;
+
+	bitbang = kzalloc(sizeof(struct bb_info), GFP_KERNEL);
+	if (!bitbang)
 		goto out;
-	}
 
-	mdc(bitbang, 0);
-	mii_delay(bitbang);
-
-	/* read 16 bits of register data, MSB first */
-	rdreg = 0;
-	for (j = 0; j < 16; j++) {
-		mdc(bitbang, 1);
-		mii_delay(bitbang);
-		rdreg <<= 1;
-		rdreg |= mdio_read(bitbang);
-		mdc(bitbang, 0);
-		mii_delay(bitbang);
-	}
+	bitbang->ctrl.ops = &bb_ops;
+
+	new_bus = alloc_mdio_bitbang(&bitbang->ctrl);
+	if (!new_bus)
+		goto out_free_priv;
 
-	mdc(bitbang, 1);
-	mii_delay(bitbang);
-	mdc(bitbang, 0);
-	mii_delay(bitbang);
-	mdc(bitbang, 1);
-	mii_delay(bitbang);
+	new_bus->name = "CPM2 Bitbanged MII",
 
-	ret = rdreg;
+	ret = fs_mii_bitbang_init(new_bus, ofdev->node);
+	if (ret)
+		goto out_free_bus;
+
+	new_bus->phy_mask = ~0;
+	new_bus->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL);
+	if (!new_bus->irq)
+		goto out_unmap_regs;
+
+	for (i = 0; i < PHY_MAX_ADDR; i++)
+		new_bus->irq[i] = -1;
+
+	while ((np = of_get_next_child(ofdev->node, np)))
+		if (!strcmp(np->type, "ethernet-phy"))
+			add_phy(new_bus, np);
+
+	new_bus->dev = &ofdev->dev;
+	dev_set_drvdata(&ofdev->dev, new_bus);
+
+	ret = mdiobus_register(new_bus);
+	if (ret)
+		goto out_free_irqs;
+
+	return 0;
+
+out_free_irqs:
+	dev_set_drvdata(&ofdev->dev, NULL);
+	kfree(new_bus->irq);
+out_unmap_regs:
+	iounmap(bitbang->dir);
+out_free_bus:
+	kfree(new_bus);
+out_free_priv:
+	free_mdio_bitbang(new_bus);
 out:
 	return ret;
 }
 
-static int fs_enet_mii_bb_write(struct mii_bus *bus, int phy_id, int location, u16 val)
+static int fs_enet_mdio_remove(struct of_device *ofdev)
 {
-	int j;
-	struct bb_info* bitbang = bus->priv;
-
-	u8 addr = phy_id & 0xff;
-	u8 reg = location & 0xff;
-	u16 value = val & 0xffff;
-
-	bitbang_pre(bitbang, 0, addr, reg);
-
-	/* send the turnaround (10) */
-	mdc(bitbang, 0);
-	mdio(bitbang, 1);
-	mii_delay(bitbang);
-	mdc(bitbang, 1);
-	mii_delay(bitbang);
-	mdc(bitbang, 0);
-	mdio(bitbang, 0);
-	mii_delay(bitbang);
-	mdc(bitbang, 1);
-	mii_delay(bitbang);
-
-	/* write 16 bits of register data, MSB first */
-	for (j = 0; j < 16; j++) {
-		mdc(bitbang, 0);
-		mdio(bitbang, (value & 0x8000) != 0);
-		mii_delay(bitbang);
-		mdc(bitbang, 1);
-		mii_delay(bitbang);
-		value <<= 1;
-	}
+	struct mii_bus *bus = dev_get_drvdata(&ofdev->dev);
+	struct bb_info *bitbang = bus->priv;
+
+	mdiobus_unregister(bus);
+	free_mdio_bitbang(bus);
+	dev_set_drvdata(&ofdev->dev, NULL);
+	kfree(bus->irq);
+	iounmap(bitbang->dir);
+	kfree(bitbang);
+	kfree(bus);
 
-	/*
-	 * Tri-state the MDIO line.
-	 */
-	mdio_tristate(bitbang);
-	mdc(bitbang, 0);
-	mii_delay(bitbang);
-	mdc(bitbang, 1);
-	mii_delay(bitbang);
 	return 0;
 }
 
-static int fs_enet_mii_bb_reset(struct mii_bus *bus)
+static struct of_device_id fs_enet_mdio_bb_match[] = {
+	{
+		.compatible = "fsl,cpm2-mdio-bitbang",
+	},
+	{},
+};
+
+static struct of_platform_driver fs_enet_bb_mdio_driver = {
+	.name = "fsl-bb-mdio",
+	.match_table = fs_enet_mdio_bb_match,
+	.probe = fs_enet_mdio_probe,
+	.remove = fs_enet_mdio_remove,
+};
+
+int fs_enet_mdio_bb_init(void)
 {
-	/*nothing here - dunno how to reset it*/
-	return 0;
+	return of_register_platform_driver(&fs_enet_bb_mdio_driver);
 }
 
-static int fs_mii_bitbang_init(struct bb_info *bitbang, struct fs_mii_bb_platform_info* fmpi)
+void fs_enet_mdio_bb_exit(void)
 {
-	int r;
-
+	of_unregister_platform_driver(&fs_enet_bb_mdio_driver);
+}
+#else
+static int __devinit fs_mii_bitbang_init(struct bb_info *bitbang,
+                                         struct fs_mii_bb_platform_info *fmpi)
+{
+	bitbang->dir = (u32 __iomem *)fmpi->mdio_dir.offset;
+	bitbang->dat = (u32 __iomem *)fmpi->mdio_dat.offset;
+	bitbang->mdio_msk = 1U << (31 - fmpi->mdio_dat.bit);
+	bitbang->mdc_msk = 1U << (31 - fmpi->mdc_dat.bit);
 	bitbang->delay = fmpi->delay;
 
-	r = bitbang_prep_bit(&bitbang->mdio_dir,
-			 &bitbang->mdio_dir_msk,
-			 &fmpi->mdio_dir);
-	if (r != 0)
-		return r;
-
-	r = bitbang_prep_bit(&bitbang->mdio_dat,
-			 &bitbang->mdio_dat_msk,
-			 &fmpi->mdio_dat);
-	if (r != 0)
-		return r;
-
-	r = bitbang_prep_bit(&bitbang->mdc_dat,
-			 &bitbang->mdc_msk,
-			 &fmpi->mdc_dat);
-	if (r != 0)
-		return r;
-
 	return 0;
 }
 
-
 static int __devinit fs_enet_mdio_probe(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
@@ -320,20 +286,19 @@ static int __devinit fs_enet_mdio_probe(struct device *dev)
 	if (NULL == dev)
 		return -EINVAL;
 
-	new_bus = kzalloc(sizeof(struct mii_bus), GFP_KERNEL);
+	bitbang = kzalloc(sizeof(struct bb_info), GFP_KERNEL);
 
-	if (NULL == new_bus)
+	if (NULL == bitbang)
 		return -ENOMEM;
 
-	bitbang = kzalloc(sizeof(struct bb_info), GFP_KERNEL);
+	bitbang->ctrl.ops = &bb_ops;
 
-	if (NULL == bitbang)
+	new_bus = alloc_mdio_bitbang(&bitbang->ctrl);
+
+	if (NULL == new_bus)
 		return -ENOMEM;
 
 	new_bus->name = "BB MII Bus",
-	new_bus->read = &fs_enet_mii_bb_read,
-	new_bus->write = &fs_enet_mii_bb_write,
-	new_bus->reset = &fs_enet_mii_bb_reset,
 	new_bus->id = pdev->id;
 
 	new_bus->phy_mask = ~0x9;
@@ -365,13 +330,12 @@ static int __devinit fs_enet_mdio_probe(struct device *dev)
 	return 0;
 
 bus_register_fail:
+	free_mdio_bitbang(new_bus);
 	kfree(bitbang);
-	kfree(new_bus);
 
 	return err;
 }
 
-
 static int fs_enet_mdio_remove(struct device *dev)
 {
 	struct mii_bus *bus = dev_get_drvdata(dev);
@@ -380,9 +344,7 @@ static int fs_enet_mdio_remove(struct device *dev)
 
 	dev_set_drvdata(dev, NULL);
 
-	iounmap((void *) (&bus->priv));
-	bus->priv = NULL;
-	kfree(bus);
+	free_mdio_bitbang(bus);
 
 	return 0;
 }
@@ -403,4 +365,4 @@ void fs_enet_mdio_bb_exit(void)
 {
 	driver_unregister(&fs_enet_bb_mdio_driver);
 }
-
+#endif
diff --git a/drivers/net/fs_enet/mii-fec.c b/drivers/net/fs_enet/mii-fec.c
index 53db696..71e07b0 100644
--- a/drivers/net/fs_enet/mii-fec.c
+++ b/drivers/net/fs_enet/mii-fec.c
@@ -36,6 +36,10 @@
 #include <asm/irq.h>
 #include <asm/uaccess.h>
 
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+#include <linux/of_platform.h>
+#endif
+
 #include "fs_enet.h"
 #include "fec.h"
 
@@ -47,6 +51,7 @@
 
 #define FEC_MII_LOOPS	10000
 
+#ifndef CONFIG_PPC_CPM_NEW_BINDING
 static int match_has_phy (struct device *dev, void* data)
 {
 	struct platform_device* pdev = container_of(dev, struct platform_device, dev);
@@ -90,6 +95,7 @@ static int fs_mii_fec_init(struct fec_info* fec, struct fs_mii_fec_platform_info
 
 	return 0;
 }
+#endif
 
 static int fs_enet_fec_mii_read(struct mii_bus *bus , int phy_id, int location)
 {
@@ -145,6 +151,138 @@ static int fs_enet_fec_mii_reset(struct mii_bus *bus)
 	return 0;
 }
 
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+static void __devinit add_phy(struct mii_bus *bus, struct device_node *np)
+{
+	const u32 *data;
+	int len, id, irq;
+
+	data = of_get_property(np, "reg", &len);
+	if (!data || len != 4)
+		return;
+
+	id = *data;
+	bus->phy_mask &= ~(1 << id);
+
+	irq = of_irq_to_resource(np, 0, NULL);
+	if (irq != NO_IRQ)
+		bus->irq[id] = irq;
+}
+
+static int __devinit fs_enet_mdio_probe(struct of_device *ofdev,
+                                        const struct of_device_id *match)
+{
+	struct device_node *np = NULL;
+	struct resource res;
+	struct mii_bus *new_bus;
+	struct fec_info *fec;
+	int ret = -ENOMEM, i;
+
+	new_bus = kzalloc(sizeof(struct mii_bus), GFP_KERNEL);
+	if (!new_bus)
+		goto out;
+
+	fec = kzalloc(sizeof(struct fec_info), GFP_KERNEL);
+	if (!fec)
+		goto out_mii;
+
+	new_bus->priv = fec;
+	new_bus->name = "FEC MII Bus";
+	new_bus->read = &fs_enet_fec_mii_read;
+	new_bus->write = &fs_enet_fec_mii_write;
+	new_bus->reset = &fs_enet_fec_mii_reset;
+
+	ret = of_address_to_resource(ofdev->node, 0, &res);
+	if (ret)
+		return ret;
+
+	new_bus->id = res.start;
+
+	fec->fecp = ioremap(res.start, res.end - res.start + 1);
+	if (!fec->fecp)
+		goto out_fec;
+
+	fec->mii_speed = ((ppc_proc_freq + 4999999) / 5000000) << 1;
+
+	setbits32(&fec->fecp->fec_r_cntrl, FEC_RCNTRL_MII_MODE);
+	setbits32(&fec->fecp->fec_ecntrl, FEC_ECNTRL_PINMUX |
+	                                  FEC_ECNTRL_ETHER_EN);
+	out_be32(&fec->fecp->fec_ievent, FEC_ENET_MII);
+	out_be32(&fec->fecp->fec_mii_speed, fec->mii_speed);
+
+	new_bus->phy_mask = ~0;
+	new_bus->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL);
+	if (!new_bus->irq)
+		goto out_unmap_regs;
+
+	for (i = 0; i < PHY_MAX_ADDR; i++)
+		new_bus->irq[i] = -1;
+
+	while ((np = of_get_next_child(ofdev->node, np)))
+		if (!strcmp(np->type, "ethernet-phy"))
+			add_phy(new_bus, np);
+
+	new_bus->dev = &ofdev->dev;
+	dev_set_drvdata(&ofdev->dev, new_bus);
+
+	ret = mdiobus_register(new_bus);
+	if (ret)
+		goto out_free_irqs;
+
+	return 0;
+
+out_free_irqs:
+	dev_set_drvdata(&ofdev->dev, NULL);
+	kfree(new_bus->irq);
+out_unmap_regs:
+	iounmap(fec->fecp);
+out_fec:
+	kfree(fec);
+out_mii:
+	kfree(new_bus);
+out:
+	return ret;
+}
+
+static int fs_enet_mdio_remove(struct of_device *ofdev)
+{
+	struct mii_bus *bus = dev_get_drvdata(&ofdev->dev);
+	struct fec_info *fec = bus->priv;
+
+	mdiobus_unregister(bus);
+	dev_set_drvdata(&ofdev->dev, NULL);
+	kfree(bus->irq);
+	iounmap(fec->fecp);
+	kfree(fec);
+	kfree(bus);
+
+	return 0;
+}
+
+static struct of_device_id fs_enet_mdio_fec_match[] = {
+	{
+		.compatible = "fsl,pq1-fec-mdio",
+	},
+	{},
+};
+
+static struct of_platform_driver fs_enet_fec_mdio_driver = {
+	.name = "fsl-fec-mdio",
+	.match_table = fs_enet_mdio_fec_match,
+	.probe = fs_enet_mdio_probe,
+	.remove = fs_enet_mdio_remove,
+};
+
+int fs_enet_mdio_fec_init(void)
+{
+	return of_register_platform_driver(&fs_enet_fec_mdio_driver);
+}
+
+void fs_enet_mdio_fec_exit(void)
+{
+	of_unregister_platform_driver(&fs_enet_fec_mdio_driver);
+}
+#else
 static int __devinit fs_enet_fec_mdio_probe(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
@@ -235,4 +373,4 @@ void fs_enet_mdio_fec_exit(void)
 {
 	driver_unregister(&fs_enet_fec_mdio_driver);
 }
-
+#endif
diff --git a/include/linux/fs_enet_pd.h b/include/linux/fs_enet_pd.h
index 543cd3c..3b9e718 100644
--- a/include/linux/fs_enet_pd.h
+++ b/include/linux/fs_enet_pd.h
@@ -119,6 +119,7 @@ struct fs_platform_info {
 
 	u32 cp_page;		/* CPM page */
 	u32 cp_block;		/* CPM sblock */
+	u32 cp_command;		/* CPM page/sblock/mcn */
 
 	u32 clk_trx;		/* some stuff for pins & mux configuration*/
 	u32 clk_rx;
@@ -133,7 +134,11 @@ struct fs_platform_info {
 	u32 device_flags;
 
 	int phy_addr;		/* the phy address (-1 no phy) */
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+	char bus_id[16];
+#else
 	const char*	bus_id;
+#endif
 	int phy_irq;		/* the phy irq (if it exists)  */
 
 	const struct fs_mii_bus_info *bus_info;
-- 
1.5.0.3

[PATCH 7/7] fs_enet: sparse fixes

[Scott Wood]

Mostly a bunch of __iomem annotations.

Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 drivers/net/fs_enet/fs_enet-main.c |   16 +++++-----
 drivers/net/fs_enet/fs_enet.h      |   30 +++++++++---------
 drivers/net/fs_enet/mac-fcc.c      |   60 ++++++++++++++++++++---------------
 drivers/net/fs_enet/mac-fec.c      |   34 ++++++++++----------
 drivers/net/fs_enet/mac-scc.c      |   37 +++++++++++-----------
 drivers/net/fs_enet/mii-fec.c      |    6 ++--
 6 files changed, 96 insertions(+), 87 deletions(-)

diff --git a/drivers/net/fs_enet/fs_enet-main.c b/drivers/net/fs_enet/fs_enet-main.c
index 33cdabf..9de653a 100644
--- a/drivers/net/fs_enet/fs_enet-main.c
+++ b/drivers/net/fs_enet/fs_enet-main.c
@@ -62,7 +62,7 @@ MODULE_DESCRIPTION("Freescale Ethernet Driver");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(DRV_MODULE_VERSION);
 
-int fs_enet_debug = -1;		/* -1 == use FS_ENET_DEF_MSG_ENABLE as value */
+static int fs_enet_debug = -1; /* -1 == use FS_ENET_DEF_MSG_ENABLE as value */
 module_param(fs_enet_debug, int, 0);
 MODULE_PARM_DESC(fs_enet_debug,
 		 "Freescale bitmapped debugging message enable value");
@@ -88,7 +88,7 @@ static int fs_enet_rx_napi(struct net_device *dev, int *budget)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
 	const struct fs_platform_info *fpi = fep->fpi;
-	cbd_t *bdp;
+	cbd_t __iomem *bdp;
 	struct sk_buff *skb, *skbn, *skbt;
 	int received = 0;
 	u16 pkt_len, sc;
@@ -240,7 +240,7 @@ static int fs_enet_rx_non_napi(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
 	const struct fs_platform_info *fpi = fep->fpi;
-	cbd_t *bdp;
+	cbd_t __iomem *bdp;
 	struct sk_buff *skb, *skbn, *skbt;
 	int received = 0;
 	u16 pkt_len, sc;
@@ -365,7 +365,7 @@ static int fs_enet_rx_non_napi(struct net_device *dev)
 static void fs_enet_tx(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	cbd_t *bdp;
+	cbd_t __iomem *bdp;
 	struct sk_buff *skb;
 	int dirtyidx, do_wake, do_restart;
 	u16 sc;
@@ -513,7 +513,7 @@ fs_enet_interrupt(int irq, void *dev_id)
 void fs_init_bds(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	cbd_t *bdp;
+	cbd_t __iomem *bdp;
 	struct sk_buff *skb;
 	int i;
 
@@ -567,7 +567,7 @@ void fs_cleanup_bds(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
 	struct sk_buff *skb;
-	cbd_t *bdp;
+	cbd_t __iomem *bdp;
 	int i;
 
 	/*
@@ -608,7 +608,7 @@ void fs_cleanup_bds(struct net_device *dev)
 static int fs_enet_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	cbd_t *bdp;
+	cbd_t __iomem *bdp;
 	int curidx;
 	u16 sc;
 	unsigned long flags;
@@ -1144,7 +1144,7 @@ static int fs_cleanup_instance(struct net_device *ndev)
 /**************************************************************************************/
 
 /* handy pointer to the immap */
-void *fs_enet_immap = NULL;
+void __iomem *fs_enet_immap;
 
 static int setup_immap(void)
 {
diff --git a/drivers/net/fs_enet/fs_enet.h b/drivers/net/fs_enet/fs_enet.h
index a130332..12594f8 100644
--- a/drivers/net/fs_enet/fs_enet.h
+++ b/drivers/net/fs_enet/fs_enet.h
@@ -15,7 +15,7 @@
 #include <asm/commproc.h>
 
 struct fec_info {
-	fec_t *fecp;
+	fec_t __iomem *fecp;
 	u32 mii_speed;
 };
 #endif
@@ -80,14 +80,14 @@ struct fs_enet_private {
 	const struct fs_ops *ops;
 	int rx_ring, tx_ring;
 	dma_addr_t ring_mem_addr;
-	void *ring_base;
+	void __iomem *ring_base;
 	struct sk_buff **rx_skbuff;
 	struct sk_buff **tx_skbuff;
-	cbd_t *rx_bd_base;	/* Address of Rx and Tx buffers.    */
-	cbd_t *tx_bd_base;
-	cbd_t *dirty_tx;	/* ring entries to be free()ed.     */
-	cbd_t *cur_rx;
-	cbd_t *cur_tx;
+	cbd_t __iomem *rx_bd_base;	/* Address of Rx and Tx buffers.    */
+	cbd_t __iomem *tx_bd_base;
+	cbd_t __iomem *dirty_tx;	/* ring entries to be free()ed.     */
+	cbd_t __iomem *cur_rx;
+	cbd_t __iomem *cur_tx;
 	int tx_free;
 	struct net_device_stats stats;
 	struct timer_list phy_timer_list;
@@ -112,23 +112,23 @@ struct fs_enet_private {
 	union {
 		struct {
 			int idx;		/* FEC1 = 0, FEC2 = 1  */
-			void *fecp;		/* hw registers        */
+			void __iomem *fecp;	/* hw registers        */
 			u32 hthi, htlo;		/* state for multicast */
 		} fec;
 
 		struct {
 			int idx;		/* FCC1-3 = 0-2	       */
-			void *fccp;		/* hw registers	       */
-			void *ep;		/* parameter ram       */
-			void *fcccp;		/* hw registers cont.  */
-			void *mem;		/* FCC DPRAM */
+			void __iomem *fccp;	/* hw registers	       */
+			void __iomem *ep;	/* parameter ram       */
+			void __iomem *fcccp;	/* hw registers cont.  */
+			void __iomem *mem;	/* FCC DPRAM */
 			u32 gaddrh, gaddrl;	/* group address       */
 		} fcc;
 
 		struct {
 			int idx;		/* FEC1 = 0, FEC2 = 1  */
-			void *sccp;		/* hw registers        */
-			void *ep;		/* parameter ram       */
+			void __iomem *sccp;	/* hw registers        */
+			void __iomem *ep;	/* parameter ram       */
 			u32 hthi, htlo;		/* state for multicast */
 		} scc;
 
@@ -199,7 +199,7 @@ extern const struct fs_ops fs_scc_ops;
 /*******************************************************************/
 
 /* handy pointer to the immap */
-extern void *fs_enet_immap;
+extern void __iomem *fs_enet_immap;
 
 /*******************************************************************/
 
diff --git a/drivers/net/fs_enet/mac-fcc.c b/drivers/net/fs_enet/mac-fcc.c
index 10e2a2b..fe3e4c3 100644
--- a/drivers/net/fs_enet/mac-fcc.c
+++ b/drivers/net/fs_enet/mac-fcc.c
@@ -81,8 +81,6 @@
 static inline int fcc_cr_cmd(struct fs_enet_private *fep, u32 op)
 {
 	const struct fs_platform_info *fpi = fep->fpi;
-	cpm2_map_t *immap = fs_enet_immap;
-	cpm_cpm2_t *cpmp = &immap->im_cpm;
 	int i;
 
 	W32(cpmp, cp_cpcr, fpi->cp_command | op | CPM_CR_FLG);
@@ -118,8 +116,8 @@ static int do_pd_setup(struct fs_enet_private *fep)
 	if (!fep->fcc.fcccp)
 		goto out_ep;
 
-	fep->fcc.mem = (void *)cpm_dpalloc(128, 8);
-	fpi->dpram_offset = (u32)cpm2_immr;
+	fep->fcc.mem = (void __iomem *)cpm2_immr;
+	fpi->dpram_offset = cpm_dpalloc(128, 8);
 	if (IS_ERR_VALUE(fpi->dpram_offset)) {
 		ret = fpi->dpram_offset;
 		goto out_fcccp;
@@ -212,7 +210,7 @@ static int allocate_bd(struct net_device *dev)
 	struct fs_enet_private *fep = netdev_priv(dev);
 	const struct fs_platform_info *fpi = fep->fpi;
 
-	fep->ring_base = dma_alloc_coherent(fep->dev,
+	fep->ring_base = (void __iomem __force *)dma_alloc_coherent(fep->dev,
 					    (fpi->tx_ring + fpi->rx_ring) *
 					    sizeof(cbd_t), &fep->ring_mem_addr,
 					    GFP_KERNEL);
@@ -230,7 +228,7 @@ static void free_bd(struct net_device *dev)
 	if (fep->ring_base)
 		dma_free_coherent(fep->dev,
 			(fpi->tx_ring + fpi->rx_ring) * sizeof(cbd_t),
-			fep->ring_base, fep->ring_mem_addr);
+			(void __force *)fep->ring_base, fep->ring_mem_addr);
 }
 
 static void cleanup_data(struct net_device *dev)
@@ -241,7 +239,7 @@ static void cleanup_data(struct net_device *dev)
 static void set_promiscuous_mode(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	fcc_t *fccp = fep->fcc.fccp;
+	fcc_t __iomem *fccp = fep->fcc.fccp;
 
 	S32(fccp, fcc_fpsmr, FCC_PSMR_PRO);
 }
@@ -249,7 +247,7 @@ static void set_promiscuous_mode(struct net_device *dev)
 static void set_multicast_start(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	fcc_enet_t *ep = fep->fcc.ep;
+	fcc_enet_t __iomem *ep = fep->fcc.ep;
 
 	W32(ep, fen_gaddrh, 0);
 	W32(ep, fen_gaddrl, 0);
@@ -258,7 +256,7 @@ static void set_multicast_start(struct net_device *dev)
 static void set_multicast_one(struct net_device *dev, const u8 *mac)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	fcc_enet_t *ep = fep->fcc.ep;
+	fcc_enet_t __iomem *ep = fep->fcc.ep;
 	u16 taddrh, taddrm, taddrl;
 
 	taddrh = ((u16)mac[5] << 8) | mac[4];
@@ -274,8 +272,8 @@ static void set_multicast_one(struct net_device *dev, const u8 *mac)
 static void set_multicast_finish(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	fcc_t *fccp = fep->fcc.fccp;
-	fcc_enet_t *ep = fep->fcc.ep;
+	fcc_t __iomem *fccp = fep->fcc.fccp;
+	fcc_enet_t __iomem *ep = fep->fcc.ep;
 
 	/* clear promiscuous always */
 	C32(fccp, fcc_fpsmr, FCC_PSMR_PRO);
@@ -310,12 +308,14 @@ static void restart(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
 	const struct fs_platform_info *fpi = fep->fpi;
-	fcc_t *fccp = fep->fcc.fccp;
-	fcc_c_t *fcccp = fep->fcc.fcccp;
-	fcc_enet_t *ep = fep->fcc.ep;
+	fcc_t __iomem *fccp = fep->fcc.fccp;
+	fcc_c_t __iomem *fcccp = fep->fcc.fcccp;
+	fcc_enet_t __iomem *ep = fep->fcc.ep;
 	dma_addr_t rx_bd_base_phys, tx_bd_base_phys;
 	u16 paddrh, paddrm, paddrl;
+#ifndef CONFIG_PPC_CPM_NEW_BINDING
 	u16 mem_addr;
+#endif
 	const unsigned char *mac;
 	int i;
 
@@ -347,14 +347,22 @@ static void restart(struct net_device *dev)
 	 * this area.
 	 */
 
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+	W16(ep, fen_genfcc.fcc_riptr, fpi->dpram_offset);
+	W16(ep, fen_genfcc.fcc_tiptr, fpi->dpram_offset + 32);
+
+	W16(ep, fen_padptr, fpi->dpram_offset + 64);
+#else
 	mem_addr = (u32) fep->fcc.mem;	/* de-fixup dpram offset */
 
 	W16(ep, fen_genfcc.fcc_riptr, (mem_addr & 0xffff));
 	W16(ep, fen_genfcc.fcc_tiptr, ((mem_addr + 32) & 0xffff));
+
 	W16(ep, fen_padptr, mem_addr + 64);
+#endif
 
 	/* fill with special symbol...  */
-	memset(fep->fcc.mem + fpi->dpram_offset + 64, 0x88, 32);
+	memset_io(fep->fcc.mem + fpi->dpram_offset + 64, 0x88, 32);
 
 	W32(ep, fen_genfcc.fcc_rbptr, 0);
 	W32(ep, fen_genfcc.fcc_tbptr, 0);
@@ -470,7 +478,7 @@ static void restart(struct net_device *dev)
 static void stop(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	fcc_t *fccp = fep->fcc.fccp;
+	fcc_t __iomem *fccp = fep->fcc.fccp;
 
 	/* stop ethernet */
 	C32(fccp, fcc_gfmr, FCC_GFMR_ENR | FCC_GFMR_ENT);
@@ -497,7 +505,7 @@ static void post_free_irq(struct net_device *dev, int irq)
 static void napi_clear_rx_event(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	fcc_t *fccp = fep->fcc.fccp;
+	fcc_t __iomem *fccp = fep->fcc.fccp;
 
 	W16(fccp, fcc_fcce, FCC_NAPI_RX_EVENT_MSK);
 }
@@ -505,7 +513,7 @@ static void napi_clear_rx_event(struct net_device *dev)
 static void napi_enable_rx(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	fcc_t *fccp = fep->fcc.fccp;
+	fcc_t __iomem *fccp = fep->fcc.fccp;
 
 	S16(fccp, fcc_fccm, FCC_NAPI_RX_EVENT_MSK);
 }
@@ -513,7 +521,7 @@ static void napi_enable_rx(struct net_device *dev)
 static void napi_disable_rx(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	fcc_t *fccp = fep->fcc.fccp;
+	fcc_t __iomem *fccp = fep->fcc.fccp;
 
 	C16(fccp, fcc_fccm, FCC_NAPI_RX_EVENT_MSK);
 }
@@ -526,7 +534,7 @@ static void rx_bd_done(struct net_device *dev)
 static void tx_kickstart(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	fcc_t *fccp = fep->fcc.fccp;
+	fcc_t __iomem *fccp = fep->fcc.fccp;
 
 	S16(fccp, fcc_ftodr, 0x8000);
 }
@@ -534,7 +542,7 @@ static void tx_kickstart(struct net_device *dev)
 static u32 get_int_events(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	fcc_t *fccp = fep->fcc.fccp;
+	fcc_t __iomem *fccp = fep->fcc.fccp;
 
 	return (u32)R16(fccp, fcc_fcce);
 }
@@ -542,7 +550,7 @@ static u32 get_int_events(struct net_device *dev)
 static void clear_int_events(struct net_device *dev, u32 int_events)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	fcc_t *fccp = fep->fcc.fccp;
+	fcc_t __iomem *fccp = fep->fcc.fccp;
 
 	W16(fccp, fcc_fcce, int_events & 0xffff);
 }
@@ -553,7 +561,7 @@ static void ev_error(struct net_device *dev, u32 int_events)
 	       ": %s FS_ENET ERROR(s) 0x%x\n", dev->name, int_events);
 }
 
-int get_regs(struct net_device *dev, void *p, int *sizep)
+static int get_regs(struct net_device *dev, void *p, int *sizep)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
 
@@ -570,7 +578,7 @@ int get_regs(struct net_device *dev, void *p, int *sizep)
 	return 0;
 }
 
-int get_regs_len(struct net_device *dev)
+static int get_regs_len(struct net_device *dev)
 {
 	return sizeof(fcc_t) + sizeof(fcc_enet_t) + 1;
 }
@@ -583,10 +591,10 @@ int get_regs_len(struct net_device *dev)
  * CPM37, we must disable and then re-enable the transmitter
  * following a Late Collision, Underrun, or Retry Limit error.
  */
-void tx_restart(struct net_device *dev)
+static void tx_restart(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	fcc_t *fccp = fep->fcc.fccp;
+	fcc_t __iomem *fccp = fep->fcc.fccp;
 
 	C32(fccp, fcc_gfmr, FCC_GFMR_ENT);
 	udelay(10);
diff --git a/drivers/net/fs_enet/mac-fec.c b/drivers/net/fs_enet/mac-fec.c
index ef305e2..c96df19 100644
--- a/drivers/net/fs_enet/mac-fec.c
+++ b/drivers/net/fs_enet/mac-fec.c
@@ -83,7 +83,7 @@
  */
 #define FEC_RESET_DELAY		50
 
-static int whack_reset(fec_t * fecp)
+static int whack_reset(fec_t __iomem *fecp)
 {
 	int i;
 
@@ -159,7 +159,7 @@ static int allocate_bd(struct net_device *dev)
 	struct fs_enet_private *fep = netdev_priv(dev);
 	const struct fs_platform_info *fpi = fep->fpi;
 	
-	fep->ring_base = dma_alloc_coherent(fep->dev,
+	fep->ring_base = (void __force __iomem *)dma_alloc_coherent(fep->dev,
 					    (fpi->tx_ring + fpi->rx_ring) *
 					    sizeof(cbd_t), &fep->ring_mem_addr,
 					    GFP_KERNEL);
@@ -177,7 +177,7 @@ static void free_bd(struct net_device *dev)
 	if(fep->ring_base)
 		dma_free_coherent(fep->dev, (fpi->tx_ring + fpi->rx_ring)
 					* sizeof(cbd_t),
-					fep->ring_base,
+					(void __force *)fep->ring_base,
 					fep->ring_mem_addr);
 }
 
@@ -189,7 +189,7 @@ static void cleanup_data(struct net_device *dev)
 static void set_promiscuous_mode(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	fec_t *fecp = fep->fec.fecp;
+	fec_t __iomem *fecp = fep->fec.fecp;
 
 	FS(fecp, r_cntrl, FEC_RCNTRL_PROM);
 }
@@ -237,7 +237,7 @@ static void set_multicast_one(struct net_device *dev, const u8 *mac)
 static void set_multicast_finish(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	fec_t *fecp = fep->fec.fecp;
+	fec_t __iomem *fecp = fep->fec.fecp;
 
 	/* if all multi or too many multicasts; just enable all */
 	if ((dev->flags & IFF_ALLMULTI) != 0 ||
@@ -271,7 +271,7 @@ static void restart(struct net_device *dev)
 	u32 cptr;
 #endif
 	struct fs_enet_private *fep = netdev_priv(dev);
-	fec_t *fecp = fep->fec.fecp;
+	fec_t __iomem *fecp = fep->fec.fecp;
 	const struct fs_platform_info *fpi = fep->fpi;
 	dma_addr_t rx_bd_base_phys, tx_bd_base_phys;
 	int r;
@@ -399,7 +399,7 @@ static void stop(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
 	const struct fs_platform_info *fpi = fep->fpi;
-	fec_t *fecp = fep->fec.fecp;
+	fec_t __iomem *fecp = fep->fec.fecp;
 
 	struct fec_info* feci= fep->phydev->bus->priv;
 
@@ -461,7 +461,7 @@ static void post_free_irq(struct net_device *dev, int irq)
 static void napi_clear_rx_event(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	fec_t *fecp = fep->fec.fecp;
+	fec_t __iomem *fecp = fep->fec.fecp;
 
 	FW(fecp, ievent, FEC_NAPI_RX_EVENT_MSK);
 }
@@ -469,7 +469,7 @@ static void napi_clear_rx_event(struct net_device *dev)
 static void napi_enable_rx(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	fec_t *fecp = fep->fec.fecp;
+	fec_t __iomem *fecp = fep->fec.fecp;
 
 	FS(fecp, imask, FEC_NAPI_RX_EVENT_MSK);
 }
@@ -477,7 +477,7 @@ static void napi_enable_rx(struct net_device *dev)
 static void napi_disable_rx(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	fec_t *fecp = fep->fec.fecp;
+	fec_t __iomem *fecp = fep->fec.fecp;
 
 	FC(fecp, imask, FEC_NAPI_RX_EVENT_MSK);
 }
@@ -485,7 +485,7 @@ static void napi_disable_rx(struct net_device *dev)
 static void rx_bd_done(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	fec_t *fecp = fep->fec.fecp;
+	fec_t __iomem *fecp = fep->fec.fecp;
 
 	FW(fecp, r_des_active, 0x01000000);
 }
@@ -493,7 +493,7 @@ static void rx_bd_done(struct net_device *dev)
 static void tx_kickstart(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	fec_t *fecp = fep->fec.fecp;
+	fec_t __iomem *fecp = fep->fec.fecp;
 
 	FW(fecp, x_des_active, 0x01000000);
 }
@@ -501,7 +501,7 @@ static void tx_kickstart(struct net_device *dev)
 static u32 get_int_events(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	fec_t *fecp = fep->fec.fecp;
+	fec_t __iomem *fecp = fep->fec.fecp;
 
 	return FR(fecp, ievent) & FR(fecp, imask);
 }
@@ -509,7 +509,7 @@ static u32 get_int_events(struct net_device *dev)
 static void clear_int_events(struct net_device *dev, u32 int_events)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	fec_t *fecp = fep->fec.fecp;
+	fec_t __iomem *fecp = fep->fec.fecp;
 
 	FW(fecp, ievent, int_events);
 }
@@ -520,7 +520,7 @@ static void ev_error(struct net_device *dev, u32 int_events)
 	       ": %s FEC ERROR(s) 0x%x\n", dev->name, int_events);
 }
 
-int get_regs(struct net_device *dev, void *p, int *sizep)
+static int get_regs(struct net_device *dev, void *p, int *sizep)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
 
@@ -532,12 +532,12 @@ int get_regs(struct net_device *dev, void *p, int *sizep)
 	return 0;
 }
 
-int get_regs_len(struct net_device *dev)
+static int get_regs_len(struct net_device *dev)
 {
 	return sizeof(fec_t);
 }
 
-void tx_restart(struct net_device *dev)
+static void tx_restart(struct net_device *dev)
 {
 	/* nothing */
 }
diff --git a/drivers/net/fs_enet/mac-scc.c b/drivers/net/fs_enet/mac-scc.c
index 6ec6b7d..3d094fe 100644
--- a/drivers/net/fs_enet/mac-scc.c
+++ b/drivers/net/fs_enet/mac-scc.c
@@ -191,7 +191,8 @@ static int allocate_bd(struct net_device *dev)
 	if (IS_ERR_VALUE(fep->ring_mem_addr))
 		return -ENOMEM;
 
-	fep->ring_base = cpm_dpram_addr(fep->ring_mem_addr);
+	fep->ring_base = (void __iomem __force *)
+		cpm_dpram_addr(fep->ring_mem_addr);
 
 	return 0;
 }
@@ -212,7 +213,7 @@ static void cleanup_data(struct net_device *dev)
 static void set_promiscuous_mode(struct net_device *dev)
 {				
 	struct fs_enet_private *fep = netdev_priv(dev);
-	scc_t *sccp = fep->scc.sccp;
+	scc_t __iomem *sccp = fep->scc.sccp;
 
 	S16(sccp, scc_psmr, SCC_PSMR_PRO);
 }
@@ -220,7 +221,7 @@ static void set_promiscuous_mode(struct net_device *dev)
 static void set_multicast_start(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	scc_enet_t *ep = fep->scc.ep;
+	scc_enet_t __iomem *ep = fep->scc.ep;
 
 	W16(ep, sen_gaddr1, 0);
 	W16(ep, sen_gaddr2, 0);
@@ -231,7 +232,7 @@ static void set_multicast_start(struct net_device *dev)
 static void set_multicast_one(struct net_device *dev, const u8 * mac)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	scc_enet_t *ep = fep->scc.ep;
+	scc_enet_t __iomem *ep = fep->scc.ep;
 	u16 taddrh, taddrm, taddrl;
 
 	taddrh = ((u16) mac[5] << 8) | mac[4];
@@ -247,8 +248,8 @@ static void set_multicast_one(struct net_device *dev, const u8 * mac)
 static void set_multicast_finish(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	scc_t *sccp = fep->scc.sccp;
-	scc_enet_t *ep = fep->scc.ep;
+	scc_t __iomem *sccp = fep->scc.sccp;
+	scc_enet_t __iomem *ep = fep->scc.ep;
 
 	/* clear promiscuous always */
 	C16(sccp, scc_psmr, SCC_PSMR_PRO);
@@ -285,8 +286,8 @@ static void set_multicast_list(struct net_device *dev)
 static void restart(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	scc_t *sccp = fep->scc.sccp;
-	scc_enet_t *ep = fep->scc.ep;
+	scc_t __iomem *sccp = fep->scc.sccp;
+	scc_enet_t __iomem *ep = fep->scc.ep;
 	const struct fs_platform_info *fpi = fep->fpi;
 	u16 paddrh, paddrm, paddrl;
 	const unsigned char *mac;
@@ -296,7 +297,7 @@ static void restart(struct net_device *dev)
 
 	/* clear everything (slow & steady does it) */
 	for (i = 0; i < sizeof(*ep); i++)
-		__fs_out8((char *)ep + i, 0);
+		__fs_out8((u8 __iomem *)ep + i, 0);
 
 	/* point to bds */
 	W16(ep, sen_genscc.scc_rbase, fep->ring_mem_addr);
@@ -397,7 +398,7 @@ static void restart(struct net_device *dev)
 static void stop(struct net_device *dev)	
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	scc_t *sccp = fep->scc.sccp;
+	scc_t __iomem *sccp = fep->scc.sccp;
 	int i;
 
 	for (i = 0; (R16(sccp, scc_sccm) == 0) && i < SCC_RESET_DELAY; i++)
@@ -441,7 +442,7 @@ static void post_free_irq(struct net_device *dev, int irq)
 static void napi_clear_rx_event(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	scc_t *sccp = fep->scc.sccp;
+	scc_t __iomem *sccp = fep->scc.sccp;
 
 	W16(sccp, scc_scce, SCC_NAPI_RX_EVENT_MSK);
 }
@@ -449,7 +450,7 @@ static void napi_clear_rx_event(struct net_device *dev)
 static void napi_enable_rx(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	scc_t *sccp = fep->scc.sccp;
+	scc_t __iomem *sccp = fep->scc.sccp;
 
 	S16(sccp, scc_sccm, SCC_NAPI_RX_EVENT_MSK);
 }
@@ -457,7 +458,7 @@ static void napi_enable_rx(struct net_device *dev)
 static void napi_disable_rx(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	scc_t *sccp = fep->scc.sccp;
+	scc_t __iomem *sccp = fep->scc.sccp;
 
 	C16(sccp, scc_sccm, SCC_NAPI_RX_EVENT_MSK);
 }
@@ -475,7 +476,7 @@ static void tx_kickstart(struct net_device *dev)
 static u32 get_int_events(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	scc_t *sccp = fep->scc.sccp;
+	scc_t __iomem *sccp = fep->scc.sccp;
 
 	return (u32) R16(sccp, scc_scce);
 }
@@ -483,7 +484,7 @@ static u32 get_int_events(struct net_device *dev)
 static void clear_int_events(struct net_device *dev, u32 int_events)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
-	scc_t *sccp = fep->scc.sccp;
+	scc_t __iomem *sccp = fep->scc.sccp;
 
 	W16(sccp, scc_scce, int_events & 0xffff);
 }
@@ -498,20 +499,20 @@ static int get_regs(struct net_device *dev, void *p, int *sizep)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
 
-	if (*sizep < sizeof(scc_t) + sizeof(scc_enet_t))
+	if (*sizep < sizeof(scc_t) + sizeof(scc_enet_t __iomem *))
 		return -EINVAL;
 
 	memcpy_fromio(p, fep->scc.sccp, sizeof(scc_t));
 	p = (char *)p + sizeof(scc_t);
 
-	memcpy_fromio(p, fep->scc.ep, sizeof(scc_enet_t));
+	memcpy_fromio(p, fep->scc.ep, sizeof(scc_enet_t __iomem *));
 
 	return 0;
 }
 
 static int get_regs_len(struct net_device *dev)
 {
-	return sizeof(scc_t) + sizeof(scc_enet_t);
+	return sizeof(scc_t) + sizeof(scc_enet_t __iomem *);
 }
 
 static void tx_restart(struct net_device *dev)
diff --git a/drivers/net/fs_enet/mii-fec.c b/drivers/net/fs_enet/mii-fec.c
index 71e07b0..d350ae9 100644
--- a/drivers/net/fs_enet/mii-fec.c
+++ b/drivers/net/fs_enet/mii-fec.c
@@ -70,7 +70,7 @@ static int match_has_phy (struct device *dev, void* data)
 static int fs_mii_fec_init(struct fec_info* fec, struct fs_mii_fec_platform_info *fmpi)
 {
 	struct resource *r;
-	fec_t *fecp;
+	fec_t __iomem *fecp;
 	char* name = "fsl-cpm-fec";
 
 	/* we need fec in order to be useful */
@@ -100,7 +100,7 @@ static int fs_mii_fec_init(struct fec_info* fec, struct fs_mii_fec_platform_info
 static int fs_enet_fec_mii_read(struct mii_bus *bus , int phy_id, int location)
 {
 	struct fec_info* fec = bus->priv;
-	fec_t *fecp = fec->fecp;
+	fec_t __iomem *fecp = fec->fecp;
 	int i, ret = -1;
 
 	if ((in_be32(&fecp->fec_r_cntrl) & FEC_RCNTRL_MII_MODE) == 0)
@@ -124,7 +124,7 @@ static int fs_enet_fec_mii_read(struct mii_bus *bus , int phy_id, int location)
 static int fs_enet_fec_mii_write(struct mii_bus *bus, int phy_id, int location, u16 val)
 {
 	struct fec_info* fec = bus->priv;
-	fec_t *fecp = fec->fecp;
+	fec_t __iomem *fecp = fec->fecp;
 	int i;
 
 	/* this must never happen */
-- 
1.5.0.3