net: Add SMSC LAN9500 USB2.0 10/100 ethernet adapter driver

Attached is a driver for SMSC's LAN9500 USB2.0 10/100 ethernet
adapter.
Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

MAINTAINERS

@@ -4353,6 +4353,12 @@ L:	linux-usb@vger.kernel.org
 W:	http://www.connecttech.com
 S:	Supported
 
+USB SMSC95XX ETHERNET DRIVER
+P:	Steve Glendinning
+M:	steve.glendinning@smsc.com
+L:	netdev@vger.kernel.org
+S:	Supported
+
 USB SN9C1xx DRIVER
 P:	Luca Risolia
 M:	luca.risolia@studio.unibo.it

drivers/net/usb/Kconfig

@@ -188,6 +188,14 @@ config USB_NET_DM9601
 	  This option adds support for Davicom DM9601 based USB 1.1
 	  10/100 Ethernet adapters.
 
+config USB_NET_SMSC95XX
+	tristate "SMSC LAN95XX based USB 2.0 10/100 ethernet devices"
+	depends on USB_USBNET
+	select CRC32
+	help
+	  This option adds support for SMSC LAN95XX based USB 2.0
+	  10/100 Ethernet adapters.
+
 config USB_NET_GL620A
 	tristate "GeneSys GL620USB-A based cables"
 	depends on USB_USBNET

drivers/net/usb/Makefile

@@ -10,6 +10,7 @@ obj-$(CONFIG_USB_HSO)		+= hso.o
 obj-$(CONFIG_USB_NET_AX8817X)	+= asix.o
 obj-$(CONFIG_USB_NET_CDCETHER)	+= cdc_ether.o
 obj-$(CONFIG_USB_NET_DM9601)	+= dm9601.o
+obj-$(CONFIG_USB_NET_SMSC95XX)	+= smsc95xx.o
 obj-$(CONFIG_USB_NET_GL620A)	+= gl620a.o
 obj-$(CONFIG_USB_NET_NET1080)	+= net1080.o
 obj-$(CONFIG_USB_NET_PLUSB)	+= plusb.o

drivers/net/usb/smsc95xx.h

+ /***************************************************************************
+ *
+ * Copyright (C) 2007-2008 SMSC
+ *
+ * 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 _SMSC95XX_H
+#define _SMSC95XX_H
+
+/* Tx command words */
+#define TX_CMD_A_DATA_OFFSET_		(0x001F0000)
+#define TX_CMD_A_FIRST_SEG_		(0x00002000)
+#define TX_CMD_A_LAST_SEG_		(0x00001000)
+#define TX_CMD_A_BUF_SIZE_		(0x000007FF)
+
+#define TX_CMD_B_CSUM_ENABLE		(0x00004000)
+#define TX_CMD_B_ADD_CRC_DISABLE_	(0x00002000)
+#define TX_CMD_B_DISABLE_PADDING_	(0x00001000)
+#define TX_CMD_B_PKT_BYTE_LENGTH_	(0x000007FF)
+
+/* Rx status word */
+#define RX_STS_FF_			(0x40000000)	/* Filter Fail */
+#define RX_STS_FL_			(0x3FFF0000)	/* Frame Length */
+#define RX_STS_ES_			(0x00008000)	/* Error Summary */
+#define RX_STS_BF_			(0x00002000)	/* Broadcast Frame */
+#define RX_STS_LE_			(0x00001000)	/* Length Error */
+#define RX_STS_RF_			(0x00000800)	/* Runt Frame */
+#define RX_STS_MF_			(0x00000400)	/* Multicast Frame */
+#define RX_STS_TL_			(0x00000080)	/* Frame too long */
+#define RX_STS_CS_			(0x00000040)	/* Collision Seen */
+#define RX_STS_FT_			(0x00000020)	/* Frame Type */
+#define RX_STS_RW_			(0x00000010)	/* Receive Watchdog */
+#define RX_STS_ME_			(0x00000008)	/* Mii Error */
+#define RX_STS_DB_			(0x00000004)	/* Dribbling */
+#define RX_STS_CRC_			(0x00000002)	/* CRC Error */
+
+/* SCSRs */
+#define ID_REV				(0x00)
+#define ID_REV_CHIP_ID_MASK_		(0xFFFF0000)
+#define ID_REV_CHIP_REV_MASK_		(0x0000FFFF)
+#define ID_REV_CHIP_ID_9500_		(0x9500)
+
+#define INT_STS				(0x08)
+#define INT_STS_TX_STOP_		(0x00020000)
+#define INT_STS_RX_STOP_		(0x00010000)
+#define INT_STS_PHY_INT_		(0x00008000)
+#define INT_STS_TXE_			(0x00004000)
+#define INT_STS_TDFU_			(0x00002000)
+#define INT_STS_TDFO_			(0x00001000)
+#define INT_STS_RXDF_			(0x00000800)
+#define INT_STS_GPIOS_			(0x000007FF)
+
+#define RX_CFG				(0x0C)
+#define RX_FIFO_FLUSH_			(0x00000001)
+
+#define TX_CFG				(0x10)
+#define TX_CFG_ON_			(0x00000004)
+#define TX_CFG_STOP_			(0x00000002)
+#define TX_CFG_FIFO_FLUSH_		(0x00000001)
+
+#define HW_CFG				(0x14)
+#define HW_CFG_BIR_			(0x00001000)
+#define HW_CFG_LEDB_			(0x00000800)
+#define HW_CFG_RXDOFF_			(0x00000600)
+#define HW_CFG_DRP_			(0x00000040)
+#define HW_CFG_MEF_			(0x00000020)
+#define HW_CFG_LRST_			(0x00000008)
+#define HW_CFG_PSEL_			(0x00000004)
+#define HW_CFG_BCE_			(0x00000002)
+#define HW_CFG_SRST_			(0x00000001)
+
+#define PM_CTRL				(0x20)
+#define PM_CTL_DEV_RDY_			(0x00000080)
+#define PM_CTL_SUS_MODE_		(0x00000060)
+#define PM_CTL_SUS_MODE_0		(0x00000000)
+#define PM_CTL_SUS_MODE_1		(0x00000020)
+#define PM_CTL_SUS_MODE_2		(0x00000060)
+#define PM_CTL_PHY_RST_			(0x00000010)
+#define PM_CTL_WOL_EN_			(0x00000008)
+#define PM_CTL_ED_EN_			(0x00000004)
+#define PM_CTL_WUPS_			(0x00000003)
+#define PM_CTL_WUPS_NO_			(0x00000000)
+#define PM_CTL_WUPS_ED_			(0x00000001)
+#define PM_CTL_WUPS_WOL_		(0x00000002)
+#define PM_CTL_WUPS_MULTI_		(0x00000003)
+
+#define LED_GPIO_CFG			(0x24)
+
+#define GPIO_CFG			(0x28)
+
+#define AFC_CFG				(0x2C)
+
+/* Hi watermark = 15.5Kb (~10 mtu pkts) */
+/* low watermark = 3k (~2 mtu pkts) */
+/* backpressure duration = ~ 350us */
+/* Apply FC on any frame. */
+#define AFC_CFG_DEFAULT			(0x00F830A1)
+
+#define E2P_CMD				(0x30)
+#define E2P_CMD_BUSY_			(0x80000000)
+#define E2P_CMD_MASK_			(0x70000000)
+#define E2P_CMD_READ_			(0x00000000)
+#define E2P_CMD_EWDS_			(0x10000000)
+#define E2P_CMD_EWEN_			(0x20000000)
+#define E2P_CMD_WRITE_			(0x30000000)
+#define E2P_CMD_WRAL_			(0x40000000)
+#define E2P_CMD_ERASE_			(0x50000000)
+#define E2P_CMD_ERAL_			(0x60000000)
+#define E2P_CMD_RELOAD_			(0x70000000)
+#define E2P_CMD_TIMEOUT_		(0x00000400)
+#define E2P_CMD_LOADED_			(0x00000200)
+#define E2P_CMD_ADDR_			(0x000001FF)
+
+#define MAX_EEPROM_SIZE			(512)
+
+#define E2P_DATA			(0x34)
+#define E2P_DATA_MASK_			(0x000000FF)
+
+#define BURST_CAP			(0x38)
+
+#define GPIO_WAKE			(0x64)
+
+#define INT_EP_CTL			(0x68)
+#define INT_EP_CTL_INTEP_		(0x80000000)
+#define INT_EP_CTL_MACRTO_		(0x00080000)
+#define INT_EP_CTL_TX_STOP_		(0x00020000)
+#define INT_EP_CTL_RX_STOP_		(0x00010000)
+#define INT_EP_CTL_PHY_INT_		(0x00008000)
+#define INT_EP_CTL_TXE_			(0x00004000)
+#define INT_EP_CTL_TDFU_		(0x00002000)
+#define INT_EP_CTL_TDFO_		(0x00001000)
+#define INT_EP_CTL_RXDF_		(0x00000800)
+#define INT_EP_CTL_GPIOS_		(0x000007FF)
+
+#define BULK_IN_DLY			(0x6C)
+
+/* MAC CSRs */
+#define MAC_CR				(0x100)
+#define MAC_CR_RXALL_			(0x80000000)
+#define MAC_CR_RCVOWN_			(0x00800000)
+#define MAC_CR_LOOPBK_			(0x00200000)
+#define MAC_CR_FDPX_			(0x00100000)
+#define MAC_CR_MCPAS_			(0x00080000)
+#define MAC_CR_PRMS_			(0x00040000)
+#define MAC_CR_INVFILT_			(0x00020000)
+#define MAC_CR_PASSBAD_			(0x00010000)
+#define MAC_CR_HFILT_			(0x00008000)
+#define MAC_CR_HPFILT_			(0x00002000)
+#define MAC_CR_LCOLL_			(0x00001000)
+#define MAC_CR_BCAST_			(0x00000800)
+#define MAC_CR_DISRTY_			(0x00000400)
+#define MAC_CR_PADSTR_			(0x00000100)
+#define MAC_CR_BOLMT_MASK		(0x000000C0)
+#define MAC_CR_DFCHK_			(0x00000020)
+#define MAC_CR_TXEN_			(0x00000008)
+#define MAC_CR_RXEN_			(0x00000004)
+
+#define ADDRH				(0x104)
+
+#define ADDRL				(0x108)
+
+#define HASHH				(0x10C)
+
+#define HASHL				(0x110)
+
+#define MII_ADDR			(0x114)
+#define MII_WRITE_			(0x02)
+#define MII_BUSY_			(0x01)
+#define MII_READ_			(0x00) /* ~of MII Write bit */
+
+#define MII_DATA			(0x118)
+
+#define FLOW				(0x11C)
+#define FLOW_FCPT_			(0xFFFF0000)
+#define FLOW_FCPASS_			(0x00000004)
+#define FLOW_FCEN_			(0x00000002)
+#define FLOW_FCBSY_			(0x00000001)
+
+#define VLAN1				(0x120)
+
+#define VLAN2				(0x124)
+
+#define WUFF				(0x128)
+
+#define WUCSR				(0x12C)
+
+#define COE_CR				(0x130)
+#define Tx_COE_EN_			(0x00010000)
+#define Rx_COE_MODE_			(0x00000002)
+#define Rx_COE_EN_			(0x00000001)
+
+/* Vendor-specific PHY Definitions */
+
+/* Mode Control/Status Register */
+#define PHY_MODE_CTRL_STS		(17)
+#define MODE_CTRL_STS_EDPWRDOWN_	((u16)0x2000)
+#define MODE_CTRL_STS_ENERGYON_		((u16)0x0002)
+
+#define SPECIAL_CTRL_STS		(27)
+#define SPECIAL_CTRL_STS_OVRRD_AMDIX_	((u16)0x8000)
+#define SPECIAL_CTRL_STS_AMDIX_ENABLE_	((u16)0x4000)
+#define SPECIAL_CTRL_STS_AMDIX_STATE_	((u16)0x2000)
+
+#define PHY_INT_SRC			(29)
+#define PHY_INT_SRC_ENERGY_ON_		((u16)0x0080)
+#define PHY_INT_SRC_ANEG_COMP_		((u16)0x0040)
+#define PHY_INT_SRC_REMOTE_FAULT_	((u16)0x0020)
+#define PHY_INT_SRC_LINK_DOWN_		((u16)0x0010)
+
+#define PHY_INT_MASK			(30)
+#define PHY_INT_MASK_ENERGY_ON_		((u16)0x0080)
+#define PHY_INT_MASK_ANEG_COMP_		((u16)0x0040)
+#define PHY_INT_MASK_REMOTE_FAULT_	((u16)0x0020)
+#define PHY_INT_MASK_LINK_DOWN_		((u16)0x0010)
+#define PHY_INT_MASK_DEFAULT_		(PHY_INT_MASK_ANEG_COMP_ | \
+					 PHY_INT_MASK_LINK_DOWN_)
+
+#define PHY_SPECIAL			(31)
+#define PHY_SPECIAL_SPD_		((u16)0x001C)
+#define PHY_SPECIAL_SPD_10HALF_		((u16)0x0004)
+#define PHY_SPECIAL_SPD_10FULL_		((u16)0x0014)
+#define PHY_SPECIAL_SPD_100HALF_	((u16)0x0008)
+#define PHY_SPECIAL_SPD_100FULL_	((u16)0x0018)
+
+/* USB Vendor Requests */
+#define USB_VENDOR_REQUEST_WRITE_REGISTER	0xA0
+#define USB_VENDOR_REQUEST_READ_REGISTER	0xA1
+#define USB_VENDOR_REQUEST_GET_STATS		0xA2
+
+/* Interrupt Endpoint status word bitfields */
+#define INT_ENP_TX_STOP_		((u32)BIT(17))
+#define INT_ENP_RX_STOP_		((u32)BIT(16))
+#define INT_ENP_PHY_INT_		((u32)BIT(15))
+#define INT_ENP_TXE_			((u32)BIT(14))
+#define INT_ENP_TDFU_			((u32)BIT(13))
+#define INT_ENP_TDFO_			((u32)BIT(12))
+#define INT_ENP_RXDF_			((u32)BIT(11))
+
+#endif /* _SMSC95XX_H */