smc91111.h

uboot详细解读可用启动引导LINUX2.6内核

/*------------------------------------------------------------------------
 . smc91111.h - macros for the LAN91C111 Ethernet Driver
 .
 . (C) Copyright 2002
 . Sysgo Real-Time Solutions, GmbH <www.elinos.com>
 . Rolf Offermanns <[e-mail]>
 . 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 LAN91C111 single chip ethernet controller.  It is a modified
 . version of the smc9194.h file.
 .
 . Information contained in this file was obtained from the LAN91C111
 . manual from SMC.  To get a copy, if you really want one, you can find
 . information under www.smsc.com.
 .
 . Authors
 .	Erik Stahlman				( [e-mail] )
 .	Daris A Nevil				( [e-mail] )
 .
 . History
 . 03/16/01		Daris A Nevil	Modified for use with LAN91C111 device
 .
 ---------------------------------------------------------------------------*/
#ifndef _SMC91111_H_
#define _SMC91111_H_

#include <asm/types.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 unsigned char *addr);


/* 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

#ifdef CONFIG_XSENGINE
#define	SMC_inl(r)	(*((volatile dword *)(SMC_BASE_ADDRESS+(r<<1))))
#define	SMC_inw(r)	(*((volatile word *)(SMC_BASE_ADDRESS+(r<<1))))
#define SMC_inb(p)  ({ \
	unsigned int __p = (unsigned int)(SMC_BASE_ADDRESS + (p<<1)); \
	unsigned int __v = *(volatile unsigned short *)((__p) & ~2); \
	if (__p & 2) __v >>= 8; \
	else __v &= 0xff; \
	__v; })
#elif defined(CONFIG_XAENIAX)
#define SMC_inl(r)	(*((volatile dword *)(SMC_BASE_ADDRESS+(r))))
#define SMC_inw(z)	({ \
	unsigned int __p = (unsigned int)(SMC_BASE_ADDRESS + (z)); \
	unsigned int __v = *(volatile unsigned int *)((__p) & ~3); \
	if (__p & 3) __v >>= 16; \
	else __v &= 0xffff; \
	__v; })
#define SMC_inb(p)	({ \
	unsigned int ___v = SMC_inw((p) & ~1); \
	if (p & 1) ___v >>= 8; \
	else ___v &= 0xff; \
	___v; })
#else
#define	SMC_inl(r)	(*((volatile dword *)(SMC_BASE_ADDRESS+(r))))
#define	SMC_inw(r)	(*((volatile word *)(SMC_BASE_ADDRESS+(r))))
#define SMC_inb(p)	({ \
	unsigned int __p = (unsigned int)(SMC_BASE_ADDRESS + (p)); \
	unsigned int __v = *(volatile unsigned short *)((__p) & ~1); \
	if (__p & 1) __v >>= 8; \
	else __v &= 0xff; \
	__v; })
#endif

#ifdef CONFIG_XSENGINE
#define	SMC_outl(d,r)	(*((volatile dword *)(SMC_BASE_ADDRESS+(r<<1))) = d)
#define	SMC_outw(d,r)	(*((volatile word *)(SMC_BASE_ADDRESS+(r<<1))) = d)
#elif defined (CONFIG_XAENIAX)
#define SMC_outl(d,r)	(*((volatile dword *)(SMC_BASE_ADDRESS+(r))) = d)
#define SMC_outw(d,p)	({ \
	dword __dwo = SMC_inl((p) & ~3); \
	dword __dwn = (word)(d); \
	__dwo &= ((p) & 3) ? 0x0000ffff : 0xffff0000; \
	__dwo |= ((p) & 3) ? __dwn << 16 : __dwn; \
	SMC_outl(__dwo, (p) & ~3); \
})
#else
#define	SMC_outl(d,r)	(*((volatile dword *)(SMC_BASE_ADDRESS+(r))) = d)
#define	SMC_outw(d,r)	(*((volatile word *)(SMC_BASE_ADDRESS+(r))) = d)
#endif

#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);  \
					};  \
				})

#elif defined(CONFIG_LEON)	/* if not CONFIG_PXA250 */

#define SMC_LEON_SWAP16(_x_) ({ word _x = (_x_); ((_x << 8) | (_x >> 8)); })

#define SMC_LEON_SWAP32(_x_)			\
    ({ dword _x = (_x_);			\
       ((_x << 24) |				\
       ((0x0000FF00UL & _x) <<  8) |		\
       ((0x00FF0000UL & _x) >>  8) |		\
       (_x  >> 24)); })

#define	SMC_inl(r)	(SMC_LEON_SWAP32((*(volatile dword *)(SMC_BASE_ADDRESS+((r)<<0)))))
#define	SMC_inl_nosw(r)	((*(volatile dword *)(SMC_BASE_ADDRESS+((r)<<0))))
#define	SMC_inw(r)	(SMC_LEON_SWAP16((*(volatile word *)(SMC_BASE_ADDRESS+((r)<<0)))))
#define	SMC_inw_nosw(r)	((*(volatile word *)(SMC_BASE_ADDRESS+((r)<<0))))
#define SMC_inb(p)	({ \
	word ___v = SMC_inw((p) & ~1); \
	if ((p) & 1) ___v >>= 8; \
	else ___v &= 0xff; \
	___v; })

#define	SMC_outl(d,r)	(*(volatile dword *)(SMC_BASE_ADDRESS+((r)<<0))=SMC_LEON_SWAP32(d))
#define	SMC_outl_nosw(d,r)	(*(volatile dword *)(SMC_BASE_ADDRESS+((r)<<0))=(d))
#define	SMC_outw(d,r)	(*(volatile word *)(SMC_BASE_ADDRESS+((r)<<0))=SMC_LEON_SWAP16(d))
#define	SMC_outw_nosw(d,r)	(*(volatile word *)(SMC_BASE_ADDRESS+((r)<<0))=(d))
#define	SMC_outb(d,r)	do{	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);  \
			}while(0)
#define SMC_outsl(r,b,l)	do{	int __i; \
					dword *__b2; \
					__b2 = (dword *) b; \
					for (__i = 0; __i < l; __i++) { \
					    SMC_outl_nosw( *(__b2 + __i), r); \
					} \
				}while(0)
#define SMC_outsw(r,b,l)	do{	int __i; \
					word *__b2; \
					__b2 = (word *) b; \
					for (__i = 0; __i < l; __i++) { \
					    SMC_outw_nosw( *(__b2 + __i), r); \
					} \
				}while(0)
#define SMC_insl(r,b,l)		do{	int __i ;  \
					dword *__b2;  \
					__b2 = (dword *) b;  \
					for (__i = 0; __i < l; __i++) {  \
					  *(__b2 + __i) = SMC_inl_nosw(r);  \
					};  \
				}while(0)

#define SMC_insw(r,b,l)		do{	int __i ;  \
					word *__b2;  \
					__b2 = (word *) b;  \
					for (__i = 0; __i < l; __i++) {  \
					  *(__b2 + __i) = SMC_inw_nosw(r);  \
					};  \
				}while(0)

#define SMC_insb(r,b,l)		do{	int __i ;  \
					byte *__b2;  \
					__b2 = (byte *) b;  \
					for (__i = 0; __i < l; __i++) {  \
					  *(__b2 + __i) = SMC_inb(r);  \
					};  \
				}while(0)

#else				/* if not CONFIG_PXA250 and not CONFIG_LEON */

#ifndef CONFIG_SMC_USE_IOFUNCS /* these macros don't work on some boards */
/*
 * We have only 16 Bit PCMCIA access on Socket 0
 */

#ifdef CONFIG_ADNPESC1
#define	SMC_inw(r)	(*((volatile word *)(SMC_BASE_ADDRESS+((r)<<1))))
#elif CONFIG_BLACKFIN
#define	SMC_inw(r)	({ word __v = (*((volatile word *)(SMC_BASE_ADDRESS+(r)))); SSYNC(); __v;})
#else
#define	SMC_inw(r)	(*((volatile word *)(SMC_BASE_ADDRESS+(r))))
#endif
#define  SMC_inb(r)	(((r)&1) ? SMC_inw((r)&~1)>>8 : SMC_inw(r)&0xFF)

#ifdef CONFIG_ADNPESC1
#define	SMC_outw(d,r)	(*((volatile word *)(SMC_BASE_ADDRESS+((r)<<1))) = d)
#elif CONFIG_BLACKFIN
#define	SMC_outw(d,r)	{(*((volatile word *)(SMC_BASE_ADDRESS+(r))) = d); SSYNC();}
#else
#define	SMC_outw(d,r)	(*((volatile word *)(SMC_BASE_ADDRESS+(r))) = d)
#endif
#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  /* CONFIG_SMC_USE_IOFUNCS */

#if defined(CONFIG_SMC_USE_32_BIT)

#ifdef CONFIG_XSENGINE
#define	SMC_inl(r)	(*((volatile dword *)(SMC_BASE_ADDRESS+(r<<1))))
#else
#define	SMC_inl(r)	(*((volatile dword *)(SMC_BASE_ADDRESS+(r))))
#endif

#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);  \
					};  \
				})

#ifdef CONFIG_XSENGINE
#define	SMC_outl(d,r)	(*((volatile dword *)(SMC_BASE_ADDRESS+(r<<1))) = d)
#else
#define	SMC_outl(d,r)	(*((volatile dword *)(SMC_BASE_ADDRESS+(r))) = d)
#endif
#define SMC_outsl(r,b,l)	({	int __i; \
					dword *__b2; \
					__b2 = (dword *) b; \
					for (__i = 0; __i < l; __i++) { \
					    SMC_outl( *(__b2 + __i), r); \
					} \
				})

#endif /* CONFIG_SMC_USE_32_BIT */

#endif

/*---------------------------------------------------------------
 .
 . A description of the SMSC registers is probably in order here,
 . although for details, the SMC datasheet is invaluable.
 .
 . Basically, the chip has 4 banks of registers ( 0 to 3 ), which
 . are accessed by writing a number into the BANK_SELECT register
 . ( I also use a SMC_SELECT_BANK macro for this ).
 .
 . The banks are configured so that for most purposes, bank 2 is all
 . that is needed for simple run time tasks.
 -----------------------------------------------------------------------*/

/*
 . Bank Select Register:
 .
 .		yyyy yyyy 0000 00xx
 .		xx		= bank number
 .		yyyy yyyy	= 0x33, for identification purposes.
*/
#define	BANK_SELECT		14

/* Transmit Control Register */
/* BANK 0  */
#define	TCR_REG		0x0000	/* transmit control register */
#define TCR_ENABLE	0x0001	/* When 1 we can transmit */
#define TCR_LOOP	0x0002	/* Controls output pin LBK */
#define TCR_FORCOL	0x0004	/* When 1 will force a collision */
#define TCR_PAD_EN	0x0080	/* When 1 will pad tx frames < 64 bytes w/0 */
#define TCR_NOCRC	0x0100	/* When 1 will not append CRC to tx frames */
#define TCR_MON_CSN	0x0400	/* When 1 tx monitors carrier */
#define TCR_FDUPLX	0x0800  /* When 1 enables full duplex operation */
#define TCR_STP_SQET	0x1000	/* When 1 stops tx if Signal Quality Error */
#define	TCR_EPH_LOOP	0x2000	/* When 1 enables EPH block loopback */
#define	TCR_SWFDUP	0x8000	/* When 1 enables Switched Full Duplex mode */

#define	TCR_CLEAR	0	/* do NOTHING */
/* the default settings for the TCR register : */
/* QUESTION: do I want to enable padding of short packets ? */
#define	TCR_DEFAULT	TCR_ENABLE


/* EPH Status Register */
/* BANK 0  */
#define EPH_STATUS_REG	0x0002
#define ES_TX_SUC	0x0001	/* Last TX was successful */
#define ES_SNGL_COL	0x0002	/* Single collision detected for last tx */
#define ES_MUL_COL	0x0004	/* Multiple collisions detected for last tx */
#define ES_LTX_MULT	0x0008	/* Last tx was a multicast */
#define ES_16COL	0x0010	/* 16 Collisions Reached */
#define ES_SQET		0x0020	/* Signal Quality Error Test */
#define ES_LTXBRD	0x0040	/* Last tx was a broadcast */
#define ES_TXDEFR	0x0080	/* Transmit Deferred */
#define ES_LATCOL	0x0200	/* Late collision detected on last tx */
#define ES_LOSTCARR	0x0400	/* Lost Carrier Sense */
#define ES_EXC_DEF	0x0800	/* Excessive Deferral */
#define ES_CTR_ROL	0x1000	/* Counter Roll Over indication */
#define ES_LINK_OK	0x4000	/* Driven by inverted value of nLNK pin */