|  | /* | 
|  | * (C) Copyright 2000 | 
|  | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | 
|  | * | 
|  | * 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 | 
|  | * | 
|  | * Hacked for the marvell db64360 eval board by | 
|  | * Ingo Assmus <ingo.assmus@keymile.com> | 
|  | */ | 
|  |  | 
|  | /*************** DEFINES for Intel StrataFlash FLASH chip ********************/ | 
|  |  | 
|  | /* | 
|  | * acceptable chips types are: | 
|  | * | 
|  | *	28F320J5, 28F640J5, 28F320J3A, 28F640J3A and 28F128J3A | 
|  | */ | 
|  |  | 
|  | /* register addresses, valid only following an CHIP_CMD_RD_ID command */ | 
|  | #define CHIP_ADDR_REG_MAN	0x000000	/* manufacturer's id */ | 
|  | #define CHIP_ADDR_REG_DEV	0x000001	/* device id */ | 
|  | #define CHIP_ADDR_REG_CFGM	0x000003	/* master lock config */ | 
|  | #define CHIP_ADDR_REG_CFG(b)	(((b)<<16)|2)	/* lock config for block b */ | 
|  |  | 
|  | /* Commands */ | 
|  | #define CHIP_CMD_RST		0xFF		/* reset flash */ | 
|  | #define CHIP_CMD_RD_ID		0x90		/* read the id and lock bits */ | 
|  | #define CHIP_CMD_RD_QUERY	0x98		/* read device capabilities */ | 
|  | #define CHIP_CMD_RD_STAT	0x70		/* read the status register */ | 
|  | #define CHIP_CMD_CLR_STAT	0x50		/* clear the staus register */ | 
|  | #define CHIP_CMD_WR_BUF		0xE8		/* clear the staus register */ | 
|  | #define CHIP_CMD_PROG		0x40		/* program word command */ | 
|  | #define CHIP_CMD_ERASE1		0x20		/* 1st word for block erase */ | 
|  | #define CHIP_CMD_ERASE2		0xD0		/* 2nd word for block erase */ | 
|  | #define CHIP_CMD_ERASE_SUSP	0xB0		/* suspend block erase */ | 
|  | #define CHIP_CMD_LOCK		0x60		/* 1st word for all lock cmds */ | 
|  | #define CHIP_CMD_SET_LOCK_BLK	0x01		/* 2nd wrd set block lock bit */ | 
|  | #define CHIP_CMD_SET_LOCK_MSTR	0xF1		/* 2nd wrd set master lck bit */ | 
|  | #define CHIP_CMD_CLR_LOCK_BLK	0xD0		/* 2nd wrd clear blk lck bit */ | 
|  |  | 
|  | /* status register bits */ | 
|  | #define CHIP_STAT_DPS		0x02		/* Device Protect Status */ | 
|  | #define CHIP_STAT_VPPS		0x08		/* VPP Status */ | 
|  | #define CHIP_STAT_PSLBS		0x10		/* Program+Set Lock Bit Stat */ | 
|  | #define CHIP_STAT_ECLBS		0x20		/* Erase+Clr Lock Bit Stat */ | 
|  | #define CHIP_STAT_ESS		0x40		/* Erase Suspend Status */ | 
|  | #define CHIP_STAT_RDY		0x80		/* WSM Mach Status, 1=rdy */ | 
|  |  | 
|  | #define CHIP_STAT_ERR		(CHIP_STAT_VPPS | CHIP_STAT_DPS | \ | 
|  | CHIP_STAT_ECLBS | CHIP_STAT_PSLBS) | 
|  |  | 
|  | /* ID and Lock Configuration */ | 
|  | #define CHIP_RD_ID_LOCK		0x01		/* Bit 0 of each byte */ | 
|  | #define CHIP_RD_ID_MAN		0x89		/* Manufacturer code = 0x89 */ | 
|  | #define CHIP_RD_ID_DEV		CONFIG_SYS_FLASH_ID | 
|  |  | 
|  | /* dimensions */ | 
|  | #define CHIP_WIDTH		2		/* chips are in 16 bit mode */ | 
|  | #define CHIP_WSHIFT		1		/* (log2 of CHIP_WIDTH) */ | 
|  | #define CHIP_NBLOCKS		128 | 
|  | #define CHIP_BLKSZ		(128 * 1024)	/* of 128Kbytes each */ | 
|  | #define CHIP_SIZE		(CHIP_BLKSZ * CHIP_NBLOCKS) | 
|  |  | 
|  | /********************** DEFINES for Hymod Flash ******************************/ | 
|  |  | 
|  | /* | 
|  | * The hymod board has 2 x 28F320J5 chips running in | 
|  | * 16 bit mode, for a 32 bit wide bank. | 
|  | */ | 
|  |  | 
|  | typedef unsigned short bank_word_t;		/* 8/16/32/64bit unsigned int */ | 
|  | typedef volatile bank_word_t *bank_addr_t; | 
|  | typedef unsigned long bank_size_t;		/* want this big - >= 32 bit */ | 
|  |  | 
|  | #define BANK_CHIP_WIDTH		1		/* each bank is 1 chip wide */ | 
|  | #define BANK_CHIP_WSHIFT	0		/* (log2 of BANK_CHIP_WIDTH) */ | 
|  |  | 
|  | #define BANK_WIDTH		(CHIP_WIDTH * BANK_CHIP_WIDTH) | 
|  | #define BANK_WSHIFT		(CHIP_WSHIFT + BANK_CHIP_WSHIFT) | 
|  | #define BANK_NBLOCKS		CHIP_NBLOCKS | 
|  | #define BANK_BLKSZ		(CHIP_BLKSZ * BANK_CHIP_WIDTH) | 
|  | #define BANK_SIZE		(CHIP_SIZE * BANK_CHIP_WIDTH) | 
|  |  | 
|  | #define MAX_BANKS		1		/* only one bank possible */ | 
|  |  | 
|  | /* align bank addresses and sizes to bank word boundaries */ | 
|  | #define BANK_ADDR_WORD_ALIGN(a)	((bank_addr_t)((bank_size_t)(a) \ | 
|  | & ~(BANK_WIDTH - 1))) | 
|  | #define BANK_SIZE_WORD_ALIGN(s)	((bank_size_t)BANK_ADDR_WORD_ALIGN( \ | 
|  | (bank_size_t)(s) + (BANK_WIDTH - 1))) | 
|  |  | 
|  | /* align bank addresses and sizes to bank block boundaries */ | 
|  | #define BANK_ADDR_BLK_ALIGN(a)	((bank_addr_t)((bank_size_t)(a) \ | 
|  | & ~(BANK_BLKSZ - 1))) | 
|  | #define BANK_SIZE_BLK_ALIGN(s)	((bank_size_t)BANK_ADDR_BLK_ALIGN( \ | 
|  | (bank_size_t)(s) + (BANK_BLKSZ - 1))) | 
|  |  | 
|  | /* align bank addresses and sizes to bank boundaries */ | 
|  | #define BANK_ADDR_BANK_ALIGN(a)	((bank_addr_t)((bank_size_t)(a) \ | 
|  | & ~(BANK_SIZE - 1))) | 
|  | #define BANK_SIZE_BANK_ALIGN(s)	((bank_size_t)BANK_ADDR_BANK_ALIGN( \ | 
|  | (bank_size_t)(s) + (BANK_SIZE - 1))) | 
|  |  | 
|  | /* add an offset to a bank address */ | 
|  | #define BANK_ADDR_OFFSET(a, o)	(bank_addr_t)((bank_size_t)(a) + \ | 
|  | (bank_size_t)(o)) | 
|  |  | 
|  | /* get base address of bank b, given flash base address a */ | 
|  | #define BANK_ADDR_BASE(a, b)	BANK_ADDR_OFFSET(BANK_ADDR_BANK_ALIGN(a), \ | 
|  | (bank_size_t)(b) * BANK_SIZE) | 
|  |  | 
|  | /* adjust a bank address to start of next word, block or bank */ | 
|  | #define BANK_ADDR_NEXT_WORD(a)	BANK_ADDR_OFFSET(BANK_ADDR_WORD_ALIGN(a), \ | 
|  | BANK_WIDTH) | 
|  | #define BANK_ADDR_NEXT_BLK(a)	BANK_ADDR_OFFSET(BANK_ADDR_BLK_ALIGN(a), \ | 
|  | BANK_BLKSZ) | 
|  | #define BANK_ADDR_NEXT_BANK(a)	BANK_ADDR_OFFSET(BANK_ADDR_BANK_ALIGN(a), \ | 
|  | BANK_SIZE) | 
|  |  | 
|  | /* get bank address of chip register r given a bank base address a */ | 
|  | #define BANK_ADDR_REG(a, r)	BANK_ADDR_OFFSET(BANK_ADDR_BANK_ALIGN(a), \ | 
|  | ((bank_size_t)(r) << BANK_WSHIFT)) | 
|  |  | 
|  | /* make a bank address for each chip register address */ | 
|  |  | 
|  | #define BANK_ADDR_REG_MAN(a)	BANK_ADDR_REG((a), CHIP_ADDR_REG_MAN) | 
|  | #define BANK_ADDR_REG_DEV(a)	BANK_ADDR_REG((a), CHIP_ADDR_REG_DEV) | 
|  | #define BANK_ADDR_REG_CFGM(a)	BANK_ADDR_REG((a), CHIP_ADDR_REG_CFGM) | 
|  | #define BANK_ADDR_REG_CFG(b,a)	BANK_ADDR_REG((a), CHIP_ADDR_REG_CFG(b)) | 
|  |  | 
|  | /* | 
|  | * replicate a chip cmd/stat/rd value into each byte position within a word | 
|  | * so that multiple chips are accessed in a single word i/o operation | 
|  | * | 
|  | * this must be as wide as the bank_word_t type, and take into account the | 
|  | * chip width and bank layout | 
|  | */ | 
|  |  | 
|  | #define BANK_FILL_WORD(o)	((bank_word_t)(o)) | 
|  |  | 
|  | /* make a bank word value for each chip cmd/stat/rd value */ | 
|  |  | 
|  | /* Commands */ | 
|  | #define BANK_CMD_RST		BANK_FILL_WORD(CHIP_CMD_RST) | 
|  | #define BANK_CMD_RD_ID		BANK_FILL_WORD(CHIP_CMD_RD_ID) | 
|  | #define BANK_CMD_RD_STAT	BANK_FILL_WORD(CHIP_CMD_RD_STAT) | 
|  | #define BANK_CMD_CLR_STAT	BANK_FILL_WORD(CHIP_CMD_CLR_STAT) | 
|  | #define BANK_CMD_ERASE1		BANK_FILL_WORD(CHIP_CMD_ERASE1) | 
|  | #define BANK_CMD_ERASE2		BANK_FILL_WORD(CHIP_CMD_ERASE2) | 
|  | #define BANK_CMD_PROG		BANK_FILL_WORD(CHIP_CMD_PROG) | 
|  | #define BANK_CMD_LOCK		BANK_FILL_WORD(CHIP_CMD_LOCK) | 
|  | #define BANK_CMD_SET_LOCK_BLK	BANK_FILL_WORD(CHIP_CMD_SET_LOCK_BLK) | 
|  | #define BANK_CMD_SET_LOCK_MSTR	BANK_FILL_WORD(CHIP_CMD_SET_LOCK_MSTR) | 
|  | #define BANK_CMD_CLR_LOCK_BLK	BANK_FILL_WORD(CHIP_CMD_CLR_LOCK_BLK) | 
|  |  | 
|  | /* status register bits */ | 
|  | #define BANK_STAT_DPS		BANK_FILL_WORD(CHIP_STAT_DPS) | 
|  | #define BANK_STAT_PSS		BANK_FILL_WORD(CHIP_STAT_PSS) | 
|  | #define BANK_STAT_VPPS		BANK_FILL_WORD(CHIP_STAT_VPPS) | 
|  | #define BANK_STAT_PSLBS		BANK_FILL_WORD(CHIP_STAT_PSLBS) | 
|  | #define BANK_STAT_ECLBS		BANK_FILL_WORD(CHIP_STAT_ECLBS) | 
|  | #define BANK_STAT_ESS		BANK_FILL_WORD(CHIP_STAT_ESS) | 
|  | #define BANK_STAT_RDY		BANK_FILL_WORD(CHIP_STAT_RDY) | 
|  |  | 
|  | #define BANK_STAT_ERR		BANK_FILL_WORD(CHIP_STAT_ERR) | 
|  |  | 
|  | /* ID and Lock Configuration */ | 
|  | #define BANK_RD_ID_LOCK		BANK_FILL_WORD(CHIP_RD_ID_LOCK) | 
|  | #define BANK_RD_ID_MAN		BANK_FILL_WORD(CHIP_RD_ID_MAN) | 
|  | #define BANK_RD_ID_DEV		BANK_FILL_WORD(CHIP_RD_ID_DEV) |