xscale.h

smsc911x 网卡驱动 This the users/programmers guide for the LAN911x Linux Driver The following sections

/***************************************************************************
 *
 * Copyright (C) 2004-2005  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.
 *
 ***************************************************************************
 * File: xscale.h
 */

#ifndef USING_LINT
#include <asm/hardware.h>
#include <asm/arch/mainstone.h>
#endif //not USING_LINT

#ifndef USE_XSCALE
#error need to define USE_XSCALE
#endif

typedef struct _PLATFORM_DATA {
	DWORD		dwIdRev;
	DWORD 		dwIrq;
	void 		*dev_id;
} PLATFORM_DATA, *PPLATFORM_DATA;

/* for register access */ 
typedef volatile unsigned char  Reg8;
typedef volatile unsigned short Reg16;
typedef volatile DWORD  Reg32;
typedef volatile unsigned char  * pReg8;
typedef volatile unsigned short * pReg16;
typedef volatile unsigned long *  pReg32;

// Base address (Virtual Address)
#define LAN_CSBASE 			MST_EXP_BASE

#define LAN_IRQ				MAINSTONE_nExBRD_IRQ

#define LAN_DMACH			(0UL)

// cache organization parameters
#define CACHE_SIZE_KB		32UL
#define CACHE_WAYS			32UL
#define CACHE_LINE_BYTES	32UL
#define CACHE_ALIGN_MASK		(~(CACHE_LINE_BYTES - 1UL))
#define CACHE_BYTES_PER_WAY		((CACHE_SIZE_KB * 1024UL) / CACHE_WAYS)

#define PLATFORM_CACHE_LINE_BYTES (CACHE_LINE_BYTES)

#define PLATFORM_IRQ_POL	(0UL)
#define PLATFORM_IRQ_TYPE	(0UL)
#define PLATFORM_INT_DEAS	(0x0FUL)
#define PLATFORM_DMA_THRESHOLD (200)

#define	PLATFORM_IRQ		(198)
#define PLATFORM_RX_DMA		(1)
#define PLATFORM_TX_DMA		(2)
#define PLATFORM_NAME		"XScale"

#ifdef USING_LINT
void CleanCacheLine(DWORD addr);
void DrainWriteBuffers(void);
#else //not USING_LINT
static inline void CleanCacheLine(DWORD addr)
{
	addr = addr;		// let lint be happy :-)
	__asm("mov r0, %0" : : "r" (addr): "r0");
	__asm("mcr p15, 0, r0, c7, c10, 1");
	__asm("mcr p15, 0, r0, c7, c6, 1");
}

static inline void DrainWriteBuffers(void)
{
	__asm("mcr p15, 0, r0, c7, c10, 4");
}
#endif //not USING_LINT