Patch by Mathijs Haarman, 08 May 2003:

Add lan91c96 driver (tested on Lubbock and custom PXA250 board only)

1 files changed, 635 insertions, 0 deletions

diff --git a/drivers/lan91c96.h b/drivers/lan91c96.h
new file mode 100644
index 0000000..3ac58bc
--- /dev/null
+++ b/drivers/lan91c96.h
@@ -0,0 +1,635 @@
+/*------------------------------------------------------------------------
+ * lan91c96.h
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Rolf Offermanns <rof@sysgo.de>
+ * Copyright (C) 2001 Standard Microsystems Corporation (SMSC)
+ *       Developed by Simple Network Magic Corporation (SNMC)
+ * Copyright (C) 1996 by Erik Stahlman (ES)
+ *
+ * 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
+ *
+ * This file contains register information and access macros for
+ * the LAN91C96 single chip ethernet controller.  It is a modified
+ * version of the smc9111.h file.
+ *
+ * Information contained in this file was obtained from the LAN91C96
+ * manual from SMC. To get a copy, if you really want one, you can find
+ * information under www.smsc.com.
+ *
+ * Authors
+ * 	Erik Stahlman				( erik@vt.edu )
+ *	Daris A Nevil				( dnevil@snmc.com )
+ *
+ * History
+ * 04/30/03	Mathijs Haarman		Modified smc91111.h (u-boot version)
+ *		                        for lan91c96
+ *-------------------------------------------------------------------------
+ */
+#ifndef _LAN91C96_H_
+#define _LAN91C96_H_
+
+#include <asm/types.h>
+#include <asm/io.h>
+#include <config.h>
+
+/*
+ * This function may be called by the board specific initialisation code
+ * in order to override the default mac address.
+ */
+
+void smc_set_mac_addr(const char *addr);
+int eth_hw_init(void);
+
+
+/* I want some simple types */
+
+typedef unsigned char			byte;
+typedef unsigned short			word;
+typedef unsigned long int 		dword;
+
+/*
+ * DEBUGGING LEVELS
+ *
+ * 0 for normal operation
+ * 1 for slightly more details
+ * >2 for various levels of increasingly useless information
+ *    2 for interrupt tracking, status flags
+ *    3 for packet info
+ *    4 for complete packet dumps
+ */
+/*#define SMC_DEBUG 0 */
+
+/* Because of bank switching, the LAN91xxx uses only 16 I/O ports */
+
+#define	SMC_IO_EXTENT	16
+
+#ifdef CONFIG_PXA250
+
+#define	SMC_inl(r) 	(*((volatile dword *)(SMC_BASE_ADDRESS+( r * 4 ))))
+#define	SMC_inw(r) 	(*((volatile word *)(SMC_BASE_ADDRESS+( r * 4 ))))
+#define SMC_inb(p)	({ \
+	unsigned int __p = (unsigned int)(SMC_BASE_ADDRESS + (p * 4)); \
+	unsigned int __v = *(volatile unsigned short *)((__p) & ~1); \
+	if (__p & 1) __v >>= 8; \
+	else __v &= 0xff; \
+	__v; })
+
+#define	SMC_outl(d,r)	(*((volatile dword *)(SMC_BASE_ADDRESS+(r * 4))) = d)
+#define	SMC_outw(d,r)	(*((volatile word *)(SMC_BASE_ADDRESS+(r * 4))) = d)
+#define	SMC_outb(d,r)	({	word __d = (byte)(d);  \
+				word __w = SMC_inw((r)&~1);  \
+				__w &= ((r)&1) ? 0x00FF : 0xFF00;  \
+				__w |= ((r)&1) ? __d<<8 : __d;  \
+				SMC_outw(__w,(r)&~1);  \
+			})
+
+#define SMC_outsl(r,b,l)	({	int __i; \
+					dword *__b2; \
+					__b2 = (dword *) b; \
+					for (__i = 0; __i < l; __i++) { \
+					    SMC_outl( *(__b2 + __i), r ); \
+					} \
+				})
+
+#define SMC_outsw(r,b,l)	({	int __i; \
+					word *__b2; \
+					__b2 = (word *) b; \
+					for (__i = 0; __i < l; __i++) { \
+					    SMC_outw( *(__b2 + __i), r ); \
+					} \
+				})
+
+#define SMC_insl(r,b,l) 	({	int __i ;  \
+					dword *__b2;  \
+			    		__b2 = (dword *) b;  \
+			    		for (__i = 0; __i < l; __i++) {  \
+					  *(__b2 + __i) = SMC_inl(r);  \
+					  SMC_inl(0);  \
+					};  \
+				})
+
+#define SMC_insw(r,b,l) 	({	int __i ;  \
+					word *__b2;  \
+			    		__b2 = (word *) b;  \
+			    		for (__i = 0; __i < l; __i++) {  \
+					  *(__b2 + __i) = SMC_inw(r);  \
+					  SMC_inw(0);  \
+					};  \
+				})
+
+#define SMC_insb(r,b,l) 	({	int __i ;  \
+					byte *__b2;  \
+			    		__b2 = (byte *) b;  \
+			    		for (__i = 0; __i < l; __i++) {  \
+					  *(__b2 + __i) = SMC_inb(r);  \
+					  SMC_inb(0);  \
+					};  \
+				})
+
+#else /* if not CONFIG_PXA250 */
+
+/*
+ * We have only 16 Bit PCMCIA access on Socket 0
+ */
+
+#define	SMC_inw(r) 	(*((volatile word *)(SMC_BASE_ADDRESS+(r))))
+#define  SMC_inb(r)	(((r)&1) ? SMC_inw((r)&~1)>>8 : SMC_inw(r)&0xFF)
+
+#define	SMC_outw(d,r)	(*((volatile word *)(SMC_BASE_ADDRESS+(r))) = d)
+#define	SMC_outb(d,r)	({	word __d = (byte)(d);  \
+				word __w = SMC_inw((r)&~1);  \
+				__w &= ((r)&1) ? 0x00FF : 0xFF00;  \
+				__w |= ((r)&1) ? __d<<8 : __d;  \
+				SMC_outw(__w,(r)&~1);  \
+			})
+#if 0
+#define	SMC_outsw(r,b,l)	outsw(SMC_BASE_ADDRESS+(r), (b), (l))
+#else
+#define SMC_outsw(r,b,l)	({	int __i; \
+					word *__b2; \
+					__b2 = (word *) b; \
+					for (__i = 0; __i < l; __i++) { \
+					    SMC_outw( *(__b2 + __i), r); \
+					} \
+				})
+#endif
+
+#if 0
+#define	SMC_insw(r,b,l) 	insw(SMC_BASE_ADDRESS+(r), (b), (l))
+#else
+#define SMC_insw(r,b,l) 	({	int __i ;  \
+					word *__b2;  \
+			    		__b2 = (word *) b;  \
+			    		for (__i = 0; __i < l; __i++) {  \
+					  *(__b2 + __i) = SMC_inw(r);  \
+					  SMC_inw(0);  \
+					};  \
+				})
+#endif
+
+#endif
+
+/*
+ ****************************************************************************
+ *	Bank Select Field
+ ****************************************************************************
+ */
+#define LAN91C96_BANK_SELECT  14       // Bank Select Register
+#define LAN91C96_BANKSELECT (0x3UC << 0)
+#define BANK0               0x00
+#define BANK1               0x01
+#define BANK2               0x02
+#define BANK3               0x03
+#define BANK4               0x04
+
+/*
+ ****************************************************************************
+ *	EEPROM Addresses.
+ ****************************************************************************
+ */
+#define EEPROM_MAC_OFFSET_1    0x6020
+#define EEPROM_MAC_OFFSET_2    0x6021
+#define EEPROM_MAC_OFFSET_3    0x6022
+
+/*
+ ****************************************************************************
+ *	Bank 0 Register Map in I/O Space
+ ****************************************************************************
+ */
+#define LAN91C96_TCR          0        // Transmit Control Register
+#define LAN91C96_EPH_STATUS   2        // EPH Status Register
+#define LAN91C96_RCR          4        // Receive Control Register
+#define LAN91C96_COUNTER      6        // Counter Register
+#define LAN91C96_MIR          8        // Memory Information Register
+#define LAN91C96_MCR          10       // Memory Configuration Register
+
+/*
+ ****************************************************************************
+ *	Transmit Control Register - Bank 0 - Offset 0
+ ****************************************************************************
+ */
+#define LAN91C96_TCR_TXENA        (0x1U << 0)
+#define LAN91C96_TCR_LOOP         (0x1U << 1)
+#define LAN91C96_TCR_FORCOL       (0x1U << 2)
+#define LAN91C96_TCR_TXP_EN       (0x1U << 3)
+#define LAN91C96_TCR_PAD_EN       (0x1U << 7)
+#define LAN91C96_TCR_NOCRC        (0x1U << 8)
+#define LAN91C96_TCR_MON_CSN      (0x1U << 10)
+#define LAN91C96_TCR_FDUPLX       (0x1U << 11)
+#define LAN91C96_TCR_STP_SQET     (0x1U << 12)
+#define LAN91C96_TCR_EPH_LOOP     (0x1U << 13)
+#define LAN91C96_TCR_ETEN_TYPE    (0x1U << 14)
+#define LAN91C96_TCR_FDSE         (0x1U << 15)
+
+/*
+ ****************************************************************************
+ *	EPH Status Register - Bank 0 - Offset 2
+ ****************************************************************************
+ */
+#define LAN91C96_EPHSR_TX_SUC     (0x1U << 0)
+#define LAN91C96_EPHSR_SNGL_COL   (0x1U << 1)
+#define LAN91C96_EPHSR_MUL_COL    (0x1U << 2)
+#define LAN91C96_EPHSR_LTX_MULT   (0x1U << 3)
+#define LAN91C96_EPHSR_16COL      (0x1U << 4)
+#define LAN91C96_EPHSR_SQET       (0x1U << 5)
+#define LAN91C96_EPHSR_LTX_BRD    (0x1U << 6)
+#define LAN91C96_EPHSR_TX_DEFR    (0x1U << 7)
+#define LAN91C96_EPHSR_WAKEUP     (0x1U << 8)
+#define LAN91C96_EPHSR_LATCOL     (0x1U << 9)
+#define LAN91C96_EPHSR_LOST_CARR  (0x1U << 10)
+#define LAN91C96_EPHSR_EXC_DEF    (0x1U << 11)
+#define LAN91C96_EPHSR_CTR_ROL    (0x1U << 12)
+
+#define LAN91C96_EPHSR_LINK_OK    (0x1U << 14)
+#define LAN91C96_EPHSR_TX_UNRN    (0x1U << 15)
+
+#define LAN91C96_EPHSR_ERRORS     (LAN91C96_EPHSR_SNGL_COL  |    \
+                                   LAN91C96_EPHSR_MUL_COL   |    \
+                                   LAN91C96_EPHSR_16COL     |    \
+                                   LAN91C96_EPHSR_SQET      |    \
+                                   LAN91C96_EPHSR_TX_DEFR   |    \
+                                   LAN91C96_EPHSR_LATCOL    |    \
+                                   LAN91C96_EPHSR_LOST_CARR |    \
+                                   LAN91C96_EPHSR_EXC_DEF   |    \
+                                   LAN91C96_EPHSR_LINK_OK   |    \
+                                   LAN91C96_EPHSR_TX_UNRN)
+
+/*
+ ****************************************************************************
+ *	Receive Control Register - Bank 0 - Offset 4
+ ****************************************************************************
+ */
+#define LAN91C96_RCR_RX_ABORT     (0x1U << 0)
+#define LAN91C96_RCR_PRMS         (0x1U << 1)
+#define LAN91C96_RCR_ALMUL        (0x1U << 2)
+#define LAN91C96_RCR_RXEN         (0x1U << 8)
+#define LAN91C96_RCR_STRIP_CRC    (0x1U << 9)
+#define LAN91C96_RCR_FILT_CAR     (0x1U << 14)
+#define LAN91C96_RCR_SOFT_RST     (0x1U << 15)
+
+/*
+ ****************************************************************************
+ *	Counter Register - Bank 0 - Offset 6
+ ****************************************************************************
+ */
+#define LAN91C96_ECR_SNGL_COL     (0xFU << 0)
+#define LAN91C96_ECR_MULT_COL     (0xFU << 5)
+#define LAN91C96_ECR_DEF_TX       (0xFU << 8)
+#define LAN91C96_ECR_EXC_DEF_TX   (0xFU << 12)
+
+/*
+ ****************************************************************************
+ *	Memory Information Register - Bank 0 - OFfset 8
+ ****************************************************************************
+ */
+#define LAN91C96_MIR_SIZE        (0x18 << 0)    // 6144 bytes
+
+/*
+ ****************************************************************************
+ *	Memory Configuration Register - Bank 0 - Offset 10
+ ****************************************************************************
+ */
+#define LAN91C96_MCR_MEM_RES      (0xFFU << 0)
+#define LAN91C96_MCR_MEM_MULT     (0x3U << 9)
+#define LAN91C96_MCR_HIGH_ID      (0x3U << 12)
+
+#define LAN91C96_MCR_TRANSMIT_PAGES 0x6
+
+/*
+ ****************************************************************************
+ *	Bank 1 Register Map in I/O Space
+ ****************************************************************************
+ */
+#define LAN91C96_CONFIG       0        // Configuration Register
+#define LAN91C96_BASE         2        // Base Address Register
+#define LAN91C96_IA0          4        // Individual Address Register - 0
+#define LAN91C96_IA1          5        // Individual Address Register - 1
+#define LAN91C96_IA2          6        // Individual Address Register - 2
+#define LAN91C96_IA3          7        // Individual Address Register - 3
+#define LAN91C96_IA4          8        // Individual Address Register - 4
+#define LAN91C96_IA5          9        // Individual Address Register - 5
+#define LAN91C96_GEN_PURPOSE  10       // General Address Registers
+#define LAN91C96_CONTROL      12       // Control Register
+
+/*
+ ****************************************************************************
+ *	Configuration Register - Bank 1 - Offset 0
+ ****************************************************************************
+ */
+#define LAN91C96_CR_INT_SEL0      (0x1U << 1)
+#define LAN91C96_CR_INT_SEL1      (0x1U << 2)
+#define LAN91C96_CR_RES           (0x3U << 3)
+#define LAN91C96_CR_DIS_LINK      (0x1U << 6)
+#define LAN91C96_CR_16BIT         (0x1U << 7)
+#define LAN91C96_CR_AUI_SELECT    (0x1U << 8)
+#define LAN91C96_CR_SET_SQLCH     (0x1U << 9)
+#define LAN91C96_CR_FULL_STEP     (0x1U << 10)
+#define LAN91C96_CR_NO_WAIT       (0x1U << 12)
+
+/*
+ ****************************************************************************
+ *	Base Address Register - Bank 1 - Offset 2
+ ****************************************************************************
+ */
+#define LAN91C96_BAR_RA_BITS      (0x27U << 0)
+#define LAN91C96_BAR_ROM_SIZE     (0x1U << 6)
+#define LAN91C96_BAR_A_BITS       (0xFFU << 8)
+
+/*
+ ****************************************************************************
+ *	Control Register - Bank 1 - Offset 12
+ ****************************************************************************
+ */
+#define LAN91C96_CTR_STORE        (0x1U << 0)
+#define LAN91C96_CTR_RELOAD       (0x1U << 1)
+#define LAN91C96_CTR_EEPROM       (0x1U << 2)
+#define LAN91C96_CTR_TE_ENABLE    (0x1U << 5)
+#define LAN91C96_CTR_CR_ENABLE    (0x1U << 6)
+#define LAN91C96_CTR_LE_ENABLE    (0x1U << 7)
+#define LAN91C96_CTR_BIT_8        (0x1U << 8)
+#define LAN91C96_CTR_AUTO_RELEASE (0x1U << 11)
+#define LAN91C96_CTR_WAKEUP_EN    (0x1U << 12)
+#define LAN91C96_CTR_PWRDN        (0x1U << 13)
+#define LAN91C96_CTR_RCV_BAD      (0x1U << 14)
+
+/*
+ ****************************************************************************
+ *	Bank 2 Register Map in I/O Space
+ ****************************************************************************
+ */
+#define LAN91C96_MMU            0      // MMU Command Register
+#define LAN91C96_AUTO_TX_START  1      // Auto Tx Start Register
+#define LAN91C96_PNR            2      // Packet Number Register
+#define LAN91C96_ARR            3      // Allocation Result Register
+#define LAN91C96_FIFO           4      // FIFO Ports Register
+#define LAN91C96_POINTER        6      // Pointer Register
+#define LAN91C96_DATA_HIGH      8      // Data High Register
+#define LAN91C96_DATA_LOW       10     // Data Low Register
+#define LAN91C96_INT_STATS      12     // Interrupt Status Register - RO
+#define LAN91C96_INT_ACK        12     // Interrupt Acknowledge Register -WO
+#define LAN91C96_INT_MASK       13     // Interrupt Mask Register
+
+/*
+ ****************************************************************************
+ *	MMU Command Register - Bank 2 - Offset 0
+ ****************************************************************************
+ */
+#define LAN91C96_MMUCR_NO_BUSY    (0x1U << 0)
+#define LAN91C96_MMUCR_N1         (0x1U << 1)
+#define LAN91C96_MMUCR_N2         (0x1U << 2)
+#define LAN91C96_MMUCR_COMMAND    (0xFU << 4)
+#define LAN91C96_MMUCR_ALLOC_TX   (0x2U << 4)    // WXYZ = 0010
+#define LAN91C96_MMUCR_RESET_MMU  (0x4U << 4)    // WXYZ = 0100
+#define LAN91C96_MMUCR_REMOVE_RX  (0x6U << 4)    // WXYZ = 0110
+#define LAN91C96_MMUCR_REMOVE_TX  (0x7U << 4)    // WXYZ = 0111
+#define LAN91C96_MMUCR_RELEASE_RX (0x8U << 4)    // WXYZ = 1000
+#define LAN91C96_MMUCR_RELEASE_TX (0xAU << 4)    // WXYZ = 1010
+#define LAN91C96_MMUCR_ENQUEUE    (0xCU << 4)    // WXYZ = 1100
+#define LAN91C96_MMUCR_RESET_TX   (0xEU << 4)    // WXYZ = 1110
+
+/*
+ ****************************************************************************
+ *	Auto Tx Start Register - Bank 2 - Offset 1
+ ****************************************************************************
+ */
+#define LAN91C96_AUTOTX           (0xFFU << 0)
+
+/*
+ ****************************************************************************
+ *	Packet Number Register - Bank 2 - Offset 2
+ ****************************************************************************
+ */
+#define LAN91C96_PNR_TX           (0x1FU << 0)
+
+/*
+ ****************************************************************************
+ *	Allocation Result Register - Bank 2 - Offset 3
+ ****************************************************************************
+ */
+#define LAN91C96_ARR_ALLOC_PN     (0x7FU << 0)
+#define LAN91C96_ARR_FAILED       (0x1U << 7)
+
+/*
+ ****************************************************************************
+ *	FIFO Ports Register - Bank 2 - Offset 4
+ ****************************************************************************
+ */
+#define LAN91C96_FIFO_TX_DONE_PN  (0x1FU << 0)
+#define LAN91C96_FIFO_TEMPTY      (0x1U << 7)
+#define LAN91C96_FIFO_RX_DONE_PN  (0x1FU << 8)
+#define LAN91C96_FIFO_RXEMPTY     (0x1U << 15)
+
+/*
+ ****************************************************************************
+ *	Pointer Register - Bank 2 - Offset 6
+ ****************************************************************************
+ */
+#define LAN91C96_PTR_LOW          (0xFFU << 0)
+#define LAN91C96_PTR_HIGH         (0x7U << 8)
+#define LAN91C96_PTR_AUTO_TX      (0x1U << 11)
+#define LAN91C96_PTR_ETEN         (0x1U << 12)
+#define LAN91C96_PTR_READ         (0x1U << 13)
+#define LAN91C96_PTR_AUTO_INCR    (0x1U << 14)
+#define LAN91C96_PTR_RCV          (0x1U << 15)
+
+#define LAN91C96_PTR_RX_FRAME     (LAN91C96_PTR_RCV       |    \
+                                   LAN91C96_PTR_AUTO_INCR |    \
+                                   LAN91C96_PTR_READ)
+
+/*
+ ****************************************************************************
+ *	Data Register - Bank 2 - Offset 8
+ ****************************************************************************
+ */
+#define LAN91C96_CONTROL_CRC      (0x1U << 4)    // CRC bit
+#define LAN91C96_CONTROL_ODD      (0x1U << 5)    // ODD bit
+
+/*
+ ****************************************************************************
+ *	Interrupt Status Register - Bank 2 - Offset 12
+ ****************************************************************************
+ */
+#define LAN91C96_IST_RCV_INT      (0x1U << 0)
+#define LAN91C96_IST_TX_INT       (0x1U << 1)
+#define LAN91C96_IST_TX_EMPTY_INT (0x1U << 2)
+#define LAN91C96_IST_ALLOC_INT    (0x1U << 3)
+#define LAN91C96_IST_RX_OVRN_INT  (0x1U << 4)
+#define LAN91C96_IST_EPH_INT      (0x1U << 5)
+#define LAN91C96_IST_ERCV_INT     (0x1U << 6)
+#define LAN91C96_IST_RX_IDLE_INT  (0x1U << 7)
+
+/*
+ ****************************************************************************
+ *	Interrupt Acknowledge Register - Bank 2 - Offset 12
+ ****************************************************************************
+ */
+#define LAN91C96_ACK_TX_INT       (0x1U << 1)
+#define LAN91C96_ACK_TX_EMPTY_INT (0x1U << 2)
+#define LAN91C96_ACK_RX_OVRN_INT  (0x1U << 4)
+#define LAN91C96_ACK_ERCV_INT     (0x1U << 6)
+
+/*
+ ****************************************************************************
+ *	Interrupt Mask Register - Bank 2 - Offset 13
+ ****************************************************************************
+ */
+#define LAN91C96_MSK_RCV_INT      (0x1U << 0)
+#define LAN91C96_MSK_TX_INT       (0x1U << 1)
+#define LAN91C96_MSK_TX_EMPTY_INT (0x1U << 2)
+#define LAN91C96_MSK_ALLOC_INT    (0x1U << 3)
+#define LAN91C96_MSK_RX_OVRN_INT  (0x1U << 4)
+#define LAN91C96_MSK_EPH_INT      (0x1U << 5)
+#define LAN91C96_MSK_ERCV_INT     (0x1U << 6)
+#define LAN91C96_MSK_TX_IDLE_INT  (0x1U << 7)
+
+/*
+ ****************************************************************************
+ *	Bank 3 Register Map in I/O Space
+ **************************************************************************
+ */
+#define LAN91C96_MGMT_MDO         (0x1U << 0)
+#define LAN91C96_MGMT_MDI         (0x1U << 1)
+#define LAN91C96_MGMT_MCLK        (0x1U << 2)
+#define LAN91C96_MGMT_MDOE        (0x1U << 3)
+#define LAN91C96_MGMT_LOW_ID      (0x3U << 4)
+#define LAN91C96_MGMT_IOS0        (0x1U << 8)
+#define LAN91C96_MGMT_IOS1        (0x1U << 9)
+#define LAN91C96_MGMT_IOS2        (0x1U << 10)
+#define LAN91C96_MGMT_nXNDEC      (0x1U << 11)
+#define LAN91C96_MGMT_HIGH_ID     (0x3U << 12)
+
+/*
+ ****************************************************************************
+ *	Revision Register - Bank 3 - Offset 10
+ ****************************************************************************
+ */
+#define LAN91C96_REV_REVID        (0xFU << 0)
+#define LAN91C96_REV_CHIPID       (0xFU << 4)
+
+/*
+ ****************************************************************************
+ *	Early RCV Register - Bank 3 - Offset 12
+ ****************************************************************************
+ */
+#define LAN91C96_ERCV_THRESHOLD   (0x1FU << 0)
+#define LAN91C96_ERCV_RCV_DISCRD  (0x1U << 7)
+
+/*
+ ****************************************************************************
+ *	PCMCIA Configuration Registers
+ ****************************************************************************
+ */
+#define LAN91C96_ECOR    0x8000        // Ethernet Configuration Register
+#define LAN91C96_ECSR    0x8002        // Ethernet Configuration and Status
+
+/*
+ ****************************************************************************
+ *	PCMCIA Ethernet Configuration Option Register (ECOR)
+ ****************************************************************************
+ */
+#define LAN91C96_ECOR_ENABLE       (0x1U << 0)
+#define LAN91C96_ECOR_WR_ATTRIB    (0x1U << 2)
+#define LAN91C96_ECOR_LEVEL_REQ    (0x1U << 6)
+#define LAN91C96_ECOR_SRESET       (0x1U << 7)
+
+/*
+ ****************************************************************************
+ *	PCMCIA Ethernet Configuration and Status Register (ECSR)
+ ****************************************************************************
+ */
+#define LAN91C96_ECSR_INTR        (0x1U << 1)
+#define LAN91C96_ECSR_PWRDWN      (0x1U << 2)
+#define LAN91C96_ECSR_IOIS8       (0x1U << 5)
+
+/*
+ ****************************************************************************
+ *	Receive Frame Status Word - See page 38 of the LAN91C96 specification.
+ ****************************************************************************
+ */
+#define LAN91C96_TOO_SHORT        (0x1U << 10)
+#define LAN91C96_TOO_LONG         (0x1U << 11)
+#define LAN91C96_ODD_FRM          (0x1U << 12)
+#define LAN91C96_BAD_CRC          (0x1U << 13)
+#define LAN91C96_BROD_CAST        (0x1U << 14)
+#define LAN91C96_ALGN_ERR         (0x1U << 15)
+
+#define FRAME_FILTER              (LAN91C96_TOO_SHORT | LAN91C96_TOO_LONG  | LAN91C96_BAD_CRC   | LAN91C96_ALGN_ERR)
+
+/*
+ ****************************************************************************
+ *	Default MAC Address
+ ****************************************************************************
+ */
+#define MAC_DEF_HI  0x0800
+#define MAC_DEF_MED 0x3333
+#define MAC_DEF_LO  0x0100
+
+/*
+ ****************************************************************************
+ *	Default I/O Signature - 0x33
+ ****************************************************************************
+ */
+#define LAN91C96_LOW_SIGNATURE        (0x33U << 0)
+#define LAN91C96_HIGH_SIGNATURE       (0x33U << 8)
+#define LAN91C96_SIGNATURE (LAN91C96_HIGH_SIGNATURE | LAN91C96_LOW_SIGNATURE)
+
+#define LAN91C96_MAX_PAGES     6        // Maximum number of 256 pages.
+#define ETHERNET_MAX_LENGTH 1514
+
+
+
+/*-------------------------------------------------------------------------
+ *  I define some macros to make it easier to do somewhat common
+ * or slightly complicated, repeated tasks.
+ *-------------------------------------------------------------------------
+ */
+
+/* select a register bank, 0 to 3  */
+
+#define SMC_SELECT_BANK(x)  { SMC_outw( x, LAN91C96_BANK_SELECT ); }
+
+/* this enables an interrupt in the interrupt mask register */
+#define SMC_ENABLE_INT(x) {\
+		unsigned char mask;\
+		SMC_SELECT_BANK(2);\
+		mask = SMC_inb( LAN91C96_INT_MASK );\
+		mask |= (x);\
+		SMC_outb( mask, LAN91C96_INT_MASK ); \
+}
+
+/* this disables an interrupt from the interrupt mask register */
+
+#define SMC_DISABLE_INT(x) {\
+		unsigned char mask;\
+		SMC_SELECT_BANK(2);\
+		mask = SMC_inb( LAN91C96_INT_MASK );\
+		mask &= ~(x);\
+		SMC_outb( mask, LAN91C96_INT_MASK ); \
+}
+
+/*----------------------------------------------------------------------
+ * Define the interrupts that I want to receive from the card
+ *
+ * I want:
+ *  LAN91C96_IST_EPH_INT, for nasty errors
+ *  LAN91C96_IST_RCV_INT, for happy received packets
+ *  LAN91C96_IST_RX_OVRN_INT, because I have to kick the receiver
+ *-------------------------------------------------------------------------
+ */
+#define SMC_INTERRUPT_MASK   (LAN91C96_IST_EPH_INT | LAN91C96_IST_RX_OVRN_INT | LAN91C96_IST_RCV_INT)
+
+#endif  /* _LAN91C96_H_ */