SMSC LAN911x and LAN921x vendor driver

Attached is a driver for SMSC's LAN911x and LAN921x families of embedded
ethernet controllers.

There is an existing smc911x driver in the tree; this is intended to
replace it.  Dustin McIntire (the author of the smc911x driver) has
expressed his support for switching to this driver.

This driver contains workarounds for all known hardware issues, and has
been tested on all flavours of the chip on multiple architectures.

This driver now uses phylib, so this patch also adds support for the
device's internal phy
Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: Bahadir Balban <Bahadir.Balban@arm.com>
Signed-off-by: Dustin Mcintire <dustin@sensoria.com>
Signed-off-by: Bill Gatliff <bgat@billgatliff.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

MAINTAINERS

@@ -3853,6 +3853,12 @@ M:	mhoffman@lightlink.com
 L:	lm-sensors@lm-sensors.org
 S:	Maintained
 
+SMSC911x ETHERNET DRIVER
+P:	Steve Glendinning
+M:	steve.glendinning@smsc.com
+L:	netdev@vger.kernel.org
+S:	Supported
+
 SMX UIO Interface
 P:	Ben Nizette
 M:	bn@niasdigital.com

drivers/net/Kconfig

@@ -979,6 +979,20 @@ config SMC911X
 	  called smc911x.  If you want to compile it as a module, say M 
 	  here and read <file:Documentation/kbuild/modules.txt>
 
+config SMSC911X
+	tristate "SMSC LAN911x/LAN921x families embedded ethernet support"
+	depends on ARM || SUPERH
+	select CRC32
+	select MII
+	select PHYLIB
+	---help---
+	  Say Y here if you want support for SMSC LAN911x and LAN921x families
+	  of ethernet controllers.
+
+	  To compile this driver as a module, choose M here and read
+	  <file:Documentation/networking/net-modules.txt>. The module
+	  will be called smsc911x.
+
 config NET_VENDOR_RACAL
 	bool "Racal-Interlan (Micom) NI cards"
 	depends on ISA

drivers/net/Makefile

@@ -219,6 +219,7 @@ obj-$(CONFIG_S2IO) += s2io.o
 obj-$(CONFIG_MYRI10GE) += myri10ge/
 obj-$(CONFIG_SMC91X) += smc91x.o
 obj-$(CONFIG_SMC911X) += smc911x.o
+obj-$(CONFIG_SMSC911X) += smsc911x.o
 obj-$(CONFIG_BFIN_MAC) += bfin_mac.o
 obj-$(CONFIG_DM9000) += dm9000.o
 obj-$(CONFIG_PASEMI_MAC) += pasemi_mac_driver.o

drivers/net/phy/smsc.c

@@ -126,6 +126,27 @@ static struct phy_driver lan8700_driver = {
 	.driver		= { .owner = THIS_MODULE, }
 };
 
+static struct phy_driver lan911x_int_driver = {
+	.phy_id		= 0x0007c0d0, /* OUI=0x00800f, Model#=0x0d */
+	.phy_id_mask	= 0xfffffff0,
+	.name		= "SMSC LAN911x Internal PHY",
+
+	.features	= (PHY_BASIC_FEATURES | SUPPORTED_Pause
+				| SUPPORTED_Asym_Pause),
+	.flags		= PHY_HAS_INTERRUPT | PHY_HAS_MAGICANEG,
+
+	/* basic functions */
+	.config_aneg	= genphy_config_aneg,
+	.read_status	= genphy_read_status,
+	.config_init	= smsc_phy_config_init,
+
+	/* IRQ related */
+	.ack_interrupt	= smsc_phy_ack_interrupt,
+	.config_intr	= smsc_phy_config_intr,
+
+	.driver		= { .owner = THIS_MODULE, }
+};
+
 static int __init smsc_init(void)
 {
 	int ret;
@@ -142,8 +163,14 @@ static int __init smsc_init(void)
 	if (ret)
 		goto err3;
 
+	ret = phy_driver_register (&lan911x_int_driver);
+	if (ret)
+		goto err4;
+
 	return 0;
 
+err4:
+	phy_driver_unregister (&lan8700_driver);
 err3:
 	phy_driver_unregister (&lan8187_driver);
 err2:
@@ -154,6 +181,7 @@ static int __init smsc_init(void)
 
 static void __exit smsc_exit(void)
 {
+	phy_driver_unregister (&lan911x_int_driver);
 	phy_driver_unregister (&lan8700_driver);
 	phy_driver_unregister (&lan8187_driver);
 	phy_driver_unregister (&lan83c185_driver);

include/linux/smsc911x.h

+/***************************************************************************
+ *
+ * Copyright (C) 2004-2008 SMSC
+ * Copyright (C) 2005-2008 ARM
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ ***************************************************************************/
+#ifndef __LINUX_SMSC911X_H__
+#define __LINUX_SMSC911X_H__
+
+#include <linux/phy.h>
+
+/* platform_device configuration data, should be assigned to
+ * the platform_device's dev.platform_data */
+struct smsc911x_platform_config {
+	unsigned int irq_polarity;
+	unsigned int irq_type;
+	phy_interface_t phy_interface;
+};
+
+/* Constants for platform_device irq polarity configuration */
+#define SMSC911X_IRQ_POLARITY_ACTIVE_LOW	0
+#define SMSC911X_IRQ_POLARITY_ACTIVE_HIGH	1
+
+/* Constants for platform_device irq type configuration */
+#define SMSC911X_IRQ_TYPE_OPEN_DRAIN		0
+#define SMSC911X_IRQ_TYPE_PUSH_PULL		1
+
+#endif /* __LINUX_SMSC911X_H__ */