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/*
* (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 CFG_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)
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