smc_rv.h

U-boot源码 ARM7启动代码

/*------------------------------------------------------------------------
 . A merge of the following files to use for the RealView boards
 . - it may have either chip
 .
 . Macros for the LAN91C111 Ethernet Driver drivers/net/smc91111.h
 . 	Authors
 . 		Erik Stahlman		( [e-mail] )
 .		Daris A Nevil		( [e-mail] )
 .
 . Macros for the LAN9118   Ethernet Driver drivers/net/smc9118.h
 . 	author:
 .		Peter Pearse 		( [e-mail])
 .
 .
 . 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
 .
 . author:
 .	Peter Pearse				( [e-mail])
 .
 . History
 .	2007.10.10	Initial file merge
 .
 ---------------------------------------------------------------------------*/
#ifndef _SMC_RV_H_
#define _SMC_RV_H_

#include <asm/types.h>
#include <config.h>

/* Chip Types */
enum {
	LAN_INVALID,
	LAN91C111,
	LAN9118, 
};

// 91111 Start

/*
 * 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);  \
					};  \
				})

#else /* if not CONFIG_PXA250 */

#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)))); asm("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);asm("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 */
#define ES_TXUNRN	0x8000	/* Tx Underrun */


/* Receive Control Register */
/* BANK 0  */
#define	RCR_REG		0x0004
#define	RCR_RX_ABORT	0x0001	/* Set if a rx frame was aborted */
#define	RCR_PRMS	0x0002	/* Enable promiscuous mode */
#define	RCR_ALMUL	0x0004	/* When set accepts all multicast frames */
#define RCR_RXEN	0x0100	/* IFF this is set, we can receive packets */
#define	RCR_STRIP_CRC	0x0200	/* When set strips CRC from rx packets */
#define	RCR_ABORT_ENB	0x0200	/* When set will abort rx on collision */
#define	RCR_FILT_CAR	0x0400	/* When set filters leading 12 bit s of carrier */
#define RCR_SOFTRST	0x8000 	/* resets the chip */

/* the normal settings for the RCR register : */
#define	RCR_DEFAULT	(RCR_STRIP_CRC | RCR_RXEN)
#define RCR_CLEAR	0x0	/* set it to a base state */

/* Counter Register */
/* BANK 0  */
#define	COUNTER_REG	0x0006

/* Memory Information Register */
/* BANK 0  */
#define	MIR_REG		0x0008

/* Receive/Phy Control Register */
/* BANK 0  */
#define	RPC_REG		0x000A
#define	RPC_SPEED	0x2000	/* When 1 PHY is in 100Mbps mode. */
#define	RPC_DPLX	0x1000	/* When 1 PHY is in Full-Duplex Mode */
#define	RPC_ANEG	0x0800	/* When 1 PHY is in Auto-Negotiate Mode */
#define	RPC_LSXA_SHFT	5	/* Bits to shift LS2A,LS1A,LS0A to lsb */
#define	RPC_LSXB_SHFT	2	/* Bits to get LS2B,LS1B,LS0B to lsb */
#define RPC_LED_100_10	(0x00)	/* LED = 100Mbps OR's with 10Mbps link detect */
#define RPC_LED_RES	(0x01)	/* LED = Reserved */
#define RPC_LED_10	(0x02)	/* LED = 10Mbps link detect */
#define RPC_LED_FD	(0x03)	/* LED = Full Duplex Mode */
#define RPC_LED_TX_RX	(0x04)	/* LED = TX or RX packet occurred */
#define RPC_LED_100	(0x05)	/* LED = 100Mbps link dectect */
#define RPC_LED_TX	(0x06)	/* LED = TX packet occurred */
#define RPC_LED_RX	(0x07)	/* LED = RX packet occurred */
#if defined(CONFIG_DK1C20) || defined(CONFIG_DK1S10)
/* buggy schematic: LEDa -> yellow, LEDb --> green */
#define RPC_DEFAULT	( RPC_SPEED | RPC_DPLX | RPC_ANEG	\
			| (RPC_LED_TX_RX << RPC_LSXA_SHFT)	\
			| (RPC_LED_100_10 << RPC_LSXB_SHFT)	)
#elif defined(CONFIG_ADNPESC1)
/* SSV ADNP/ESC1 has only one LED: LEDa -> Rx/Tx indicator */
#define RPC_DEFAULT	( RPC_SPEED | RPC_DPLX | RPC_ANEG	\
			| (RPC_LED_TX_RX << RPC_LSXA_SHFT)	\
			| (RPC_LED_100_10 << RPC_LSXB_SHFT)	)
#else
/* SMSC reference design: LEDa --> green, LEDb --> yellow */
#define RPC_DEFAULT	( RPC_SPEED | RPC_DPLX | RPC_ANEG	\
			| (RPC_LED_100_10 << RPC_LSXA_SHFT)	\
			| (RPC_LED_TX_RX << RPC_LSXB_SHFT)	)
#endif

/* Bank 0 0x000C is reserved */

/* Bank Select Register */
/* All Banks */
#define BSR_REG	0x000E


/* Configuration Reg */
/* BANK 1 */
#define CONFIG_REG	0x0000