vcma9.h

来自「Uboot源码,非常通用的bootloader.适用于各种平台的Linux系统引」· C头文件 代码 · 共 135 行

/*
 * (C) Copyright 2002, 2003
 * David Mueller, ELSOFT AG, [e-mail]
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * 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
 *
 */
 /****************************************************************************
 * Global routines used for VCMA9
 *****************************************************************************/

#include <s3c2410.h>

extern int  mem_test(unsigned long start, unsigned long ramsize,int mode);

void print_vcma9_info(void);

#if (CONFIG_COMMANDS & CFG_CMD_NAND)
typedef enum {
	NFCE_LOW,
	NFCE_HIGH
} NFCE_STATE;

static inline void NF_Conf(u16 conf)
{
	S3C2410_NAND * const nand = S3C2410_GetBase_NAND();

	nand->NFCONF = conf;
}

static inline void NF_Cmd(u8 cmd)
{
	S3C2410_NAND * const nand = S3C2410_GetBase_NAND();

	nand->NFCMD = cmd;
}

static inline void NF_CmdW(u8 cmd)
{
	NF_Cmd(cmd);
	udelay(1);
}

static inline void NF_Addr(u8 addr)
{
	S3C2410_NAND * const nand = S3C2410_GetBase_NAND();

	nand->NFADDR = addr;
}

static inline void NF_SetCE(NFCE_STATE s)
{
	S3C2410_NAND * const nand = S3C2410_GetBase_NAND();

	switch (s) {
		case NFCE_LOW:
			nand->NFCONF &= ~(1<<11);
			break;

		case NFCE_HIGH:
			nand->NFCONF |= (1<<11);
			break;
	}
}

static inline void NF_WaitRB(void)
{
	S3C2410_NAND * const nand = S3C2410_GetBase_NAND();

	while (!(nand->NFSTAT & (1<<0)));
}

static inline void NF_Write(u8 data)
{
	S3C2410_NAND * const nand = S3C2410_GetBase_NAND();

	nand->NFDATA = data;
}

static inline u8 NF_Read(void)
{
	S3C2410_NAND * const nand = S3C2410_GetBase_NAND();

	return(nand->NFDATA);
}

static inline void NF_Init_ECC(void)
{
	S3C2410_NAND * const nand = S3C2410_GetBase_NAND();

	nand->NFCONF |= (1<<12);
}

static inline u32 NF_Read_ECC(void)
{
	S3C2410_NAND * const nand = S3C2410_GetBase_NAND();

	return(nand->NFECC);
}

#endif

/* VCMA9 PLD regsiters */
typedef struct {
	S3C24X0_REG8	ID;
	S3C24X0_REG8	NIC;
	S3C24X0_REG8	CAN;
	S3C24X0_REG8	MISC;
	S3C24X0_REG8	GPCD;
	S3C24X0_REG8	BOARD;
	S3C24X0_REG8	SDRAM;
} /*__attribute__((__packed__))*/ VCMA9_PLD;

#define VCMA9_PLD_BASE	0x2C000100
static inline VCMA9_PLD * const VCMA9_GetBase_PLD(void)
{
	return (VCMA9_PLD * const)VCMA9_PLD_BASE;
}