[PATCH] add new ethernet driver 'gianfar'

drivers/net/Kconfig

@@ -2131,6 +2131,17 @@ config TIGON3
 	  To compile this driver as a module, choose M here: the module
 	  will be called tg3.  This is recommended.
 
+config GIANFAR
+	tristate "Gianfar Ethernet"
+	depends on 85xx
+	help
+	  This driver supports the Gigabit TSEC on the MPC85xx 
+	  family of chips, and the FEC on the 8540
+
+config GFAR_NAPI
+	bool "NAPI Support"
+	depends on GIANFAR
+
 endmenu
 
 #

drivers/net/Makefile

@@ -10,6 +10,7 @@ obj-$(CONFIG_E1000) += e1000/
 obj-$(CONFIG_IBM_EMAC) += ibm_emac/
 obj-$(CONFIG_IXGB) += ixgb/
 obj-$(CONFIG_BONDING) += bonding/
+obj-$(CONFIG_GIANFAR) += gianfar.o gianfar_ethtool.o gianfar_phy.o
 
 #
 # link order important here

drivers/net/gianfar_phy.h

+/* 
+ * drivers/net/gianfar_phy.h
+ *
+ * Gianfar Ethernet Driver -- PHY handling
+ * Driver for FEC on MPC8540 and TSEC on MPC8540/MPC8560
+ * Based on 8260_io/fcc_enet.c
+ *
+ * Author: Andy Fleming
+ * Maintainer: Kumar Gala (kumar.gala@freescale.com)
+ *
+ * Copyright 2004 Freescale Semiconductor, Inc
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+#ifndef __GIANFAR_PHY_H
+#define __GIANFAR_PHY_H
+
+#define miim_end ((u32)-2)
+#define miim_read ((u32)-1)
+
+#define MIIMIND_BUSY            0x00000001
+#define MIIMIND_NOTVALID        0x00000004
+
+#define MIIM_CONTROL		0x00
+#define MIIM_CONTROL_RESET	0x00008000
+#define MIIM_CONTROL_INIT	0x00001140
+#define MIIM_ANEN		0x00001000
+
+#define MIIM_CR                 0x00
+#define MIIM_CR_RST		0x00008000
+#define MIIM_CR_INIT	        0x00001000
+
+#define MIIM_STATUS		0x1
+#define MIIM_STATUS_AN_DONE	0x00000020
+#define MIIM_STATUS_LINK	0x0004
+
+#define MIIM_PHYIR1		0x2
+#define MIIM_PHYIR2		0x3
+
+#define GFAR_AN_TIMEOUT         0x000fffff
+
+#define MIIM_ANLPBPA	0x5
+#define MIIM_ANLPBPA_HALF	0x00000040
+#define MIIM_ANLPBPA_FULL	0x00000020
+
+#define MIIM_ANEX		0x6
+#define MIIM_ANEX_NP    	0x00000004
+#define MIIM_ANEX_PRX   	0x00000002
+
+
+/* Cicada Extended Control Register 1 */
+#define MIIM_CIS8201_EXT_CON1           0x17
+#define MIIM_CIS8201_EXTCON1_INIT       0x0000
+
+/* Cicada Interrupt Mask Register */
+#define MIIM_CIS8204_IMASK		0x19
+#define MIIM_CIS8204_IMASK_IEN		0x8000
+#define MIIM_CIS8204_IMASK_SPEED	0x4000
+#define MIIM_CIS8204_IMASK_LINK		0x2000
+#define MIIM_CIS8204_IMASK_DUPLEX	0x1000
+#define MIIM_CIS8204_IMASK_MASK		0xf000
+
+/* Cicada Interrupt Status Register */
+#define MIIM_CIS8204_ISTAT		0x1a
+#define MIIM_CIS8204_ISTAT_STATUS	0x8000
+#define MIIM_CIS8204_ISTAT_SPEED	0x4000
+#define MIIM_CIS8204_ISTAT_LINK		0x2000
+#define MIIM_CIS8204_ISTAT_DUPLEX	0x1000
+
+/* Cicada Auxiliary Control/Status Register */
+#define MIIM_CIS8201_AUX_CONSTAT        0x1c
+#define MIIM_CIS8201_AUXCONSTAT_INIT    0x0004
+#define MIIM_CIS8201_AUXCONSTAT_DUPLEX  0x0020
+#define MIIM_CIS8201_AUXCONSTAT_SPEED   0x0018
+#define MIIM_CIS8201_AUXCONSTAT_GBIT    0x0010
+#define MIIM_CIS8201_AUXCONSTAT_100     0x0008
+                                                                                
+/* 88E1011 PHY Status Register */
+#define MIIM_88E1011_PHY_STATUS         0x11
+#define MIIM_88E1011_PHYSTAT_SPEED      0xc000
+#define MIIM_88E1011_PHYSTAT_GBIT       0x8000
+#define MIIM_88E1011_PHYSTAT_100        0x4000
+#define MIIM_88E1011_PHYSTAT_DUPLEX     0x2000
+#define MIIM_88E1011_PHYSTAT_LINK	0x0400
+
+#define MIIM_88E1011_IEVENT		0x13
+#define MIIM_88E1011_IEVENT_CLEAR	0x0000
+
+#define MIIM_88E1011_IMASK		0x12
+#define MIIM_88E1011_IMASK_INIT		0x6400
+#define MIIM_88E1011_IMASK_CLEAR	0x0000
+
+/* DM9161 Control register values */
+#define MIIM_DM9161_CR_STOP	0x0400
+#define MIIM_DM9161_CR_RSTAN	0x1200
+
+#define MIIM_DM9161_SCR		0x10
+#define MIIM_DM9161_SCR_INIT	0x0610
+
+/* DM9161 Specified Configuration and Status Register */
+#define MIIM_DM9161_SCSR	0x11
+#define MIIM_DM9161_SCSR_100F	0x8000
+#define MIIM_DM9161_SCSR_100H	0x4000
+#define MIIM_DM9161_SCSR_10F	0x2000
+#define MIIM_DM9161_SCSR_10H	0x1000
+
+/* DM9161 Interrupt Register */
+#define MIIM_DM9161_INTR	0x15
+#define MIIM_DM9161_INTR_PEND		0x8000
+#define MIIM_DM9161_INTR_DPLX_MASK	0x0800
+#define MIIM_DM9161_INTR_SPD_MASK	0x0400
+#define MIIM_DM9161_INTR_LINK_MASK	0x0200
+#define MIIM_DM9161_INTR_MASK		0x0100
+#define MIIM_DM9161_INTR_DPLX_CHANGE	0x0010
+#define MIIM_DM9161_INTR_SPD_CHANGE	0x0008
+#define MIIM_DM9161_INTR_LINK_CHANGE	0x0004
+#define MIIM_DM9161_INTR_INIT 		0x0000
+#define MIIM_DM9161_INTR_STOP	\
+(MIIM_DM9161_INTR_DPLX_MASK | MIIM_DM9161_INTR_SPD_MASK \
+ | MIIM_DM9161_INTR_LINK_MASK | MIIM_DM9161_INTR_MASK)
+
+/* DM9161 10BT Configuration/Status */
+#define MIIM_DM9161_10BTCSR	0x12
+#define MIIM_DM9161_10BTCSR_INIT	0x7800
+
+
+#define MIIM_READ_COMMAND       0x00000001
+
+/*
+ * struct phy_cmd:  A command for reading or writing a PHY register
+ *
+ * mii_reg:  The register to read or write
+ *
+ * mii_data:  For writes, the value to put in the register.
+ * 	A value of -1 indicates this is a read.
+ *
+ * funct: A function pointer which is invoked for each command.
+ * 	For reads, this function will be passed the value read
+ *	from the PHY, and process it.
+ *	For writes, the result of this function will be written
+ *	to the PHY register
+ */
+struct phy_cmd {
+    u32 mii_reg;
+    u32 mii_data;
+    u16 (*funct) (u16 mii_reg, struct net_device * dev);
+};
+
+/* struct phy_info: a structure which defines attributes for a PHY
+ *
+ * id will contain a number which represents the PHY.  During
+ * startup, the driver will poll the PHY to find out what its
+ * UID--as defined by registers 2 and 3--is.  The 32-bit result
+ * gotten from the PHY will be shifted right by "shift" bits to
+ * discard any bits which may change based on revision numbers
+ * unimportant to functionality
+ *
+ * The struct phy_cmd entries represent pointers to an arrays of
+ * commands which tell the driver what to do to the PHY.
+ */
+struct phy_info {
+    u32 id;
+    char *name;
+    unsigned int shift;
+    /* Called to configure the PHY, and modify the controller
+     * based on the results */
+    const struct phy_cmd *config;
+
+    /* Called when starting up the controller.  Usually sets
+     * up the interrupt for state changes */
+    const struct phy_cmd *startup;
+
+    /* Called inside the interrupt handler to acknowledge
+     * the interrupt */
+    const struct phy_cmd *ack_int;
+
+    /* Called in the bottom half to handle the interrupt */
+    const struct phy_cmd *handle_int;
+
+    /* Called when bringing down the controller.  Usually stops
+     * the interrupts from being generated */
+    const struct phy_cmd *shutdown;
+};
+
+struct phy_info *get_phy_info(struct net_device *dev);
+void phy_run_commands(struct net_device *dev, const struct phy_cmd *cmd);
+
+#endif /* GIANFAR_PHY_H */