diff options
Diffstat (limited to 'ANDROID_3.4.5/include/linux/mtd/onenand.h')
| -rw-r--r-- | ANDROID_3.4.5/include/linux/mtd/onenand.h | 242 |
1 files changed, 0 insertions, 242 deletions
diff --git a/ANDROID_3.4.5/include/linux/mtd/onenand.h b/ANDROID_3.4.5/include/linux/mtd/onenand.h deleted file mode 100644 index 4596503c..00000000 --- a/ANDROID_3.4.5/include/linux/mtd/onenand.h +++ /dev/null @@ -1,242 +0,0 @@ -/* - * linux/include/linux/mtd/onenand.h - * - * Copyright © 2005-2009 Samsung Electronics - * Kyungmin Park <kyungmin.park@samsung.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#ifndef __LINUX_MTD_ONENAND_H -#define __LINUX_MTD_ONENAND_H - -#include <linux/spinlock.h> -#include <linux/completion.h> -#include <linux/mtd/flashchip.h> -#include <linux/mtd/onenand_regs.h> -#include <linux/mtd/bbm.h> - -#define MAX_DIES 2 -#define MAX_BUFFERRAM 2 - -/* Scan and identify a OneNAND device */ -extern int onenand_scan(struct mtd_info *mtd, int max_chips); -/* Free resources held by the OneNAND device */ -extern void onenand_release(struct mtd_info *mtd); - -/** - * struct onenand_bufferram - OneNAND BufferRAM Data - * @blockpage: block & page address in BufferRAM - */ -struct onenand_bufferram { - int blockpage; -}; - -/** - * struct onenand_chip - OneNAND Private Flash Chip Data - * @base: [BOARDSPECIFIC] address to access OneNAND - * @dies: [INTERN][FLEX-ONENAND] number of dies on chip - * @boundary: [INTERN][FLEX-ONENAND] Boundary of the dies - * @diesize: [INTERN][FLEX-ONENAND] Size of the dies - * @chipsize: [INTERN] the size of one chip for multichip arrays - * FIXME For Flex-OneNAND, chipsize holds maximum possible - * device size ie when all blocks are considered MLC - * @device_id: [INTERN] device ID - * @density_mask: chip density, used for DDP devices - * @verstion_id: [INTERN] version ID - * @options: [BOARDSPECIFIC] various chip options. They can - * partly be set to inform onenand_scan about - * @erase_shift: [INTERN] number of address bits in a block - * @page_shift: [INTERN] number of address bits in a page - * @page_mask: [INTERN] a page per block mask - * @writesize: [INTERN] a real page size - * @bufferram_index: [INTERN] BufferRAM index - * @bufferram: [INTERN] BufferRAM info - * @readw: [REPLACEABLE] hardware specific function for read short - * @writew: [REPLACEABLE] hardware specific function for write short - * @command: [REPLACEABLE] hardware specific function for writing - * commands to the chip - * @wait: [REPLACEABLE] hardware specific function for wait on ready - * @bbt_wait: [REPLACEABLE] hardware specific function for bbt wait on ready - * @unlock_all: [REPLACEABLE] hardware specific function for unlock all - * @read_bufferram: [REPLACEABLE] hardware specific function for BufferRAM Area - * @write_bufferram: [REPLACEABLE] hardware specific function for BufferRAM Area - * @read_word: [REPLACEABLE] hardware specific function for read - * register of OneNAND - * @write_word: [REPLACEABLE] hardware specific function for write - * register of OneNAND - * @mmcontrol: sync burst read function - * @chip_probe: [REPLACEABLE] hardware specific function for chip probe - * @block_markbad: function to mark a block as bad - * @scan_bbt: [REPLACEALBE] hardware specific function for scanning - * Bad block Table - * @chip_lock: [INTERN] spinlock used to protect access to this - * structure and the chip - * @wq: [INTERN] wait queue to sleep on if a OneNAND - * operation is in progress - * @state: [INTERN] the current state of the OneNAND device - * @page_buf: [INTERN] page main data buffer - * @oob_buf: [INTERN] page oob data buffer - * @subpagesize: [INTERN] holds the subpagesize - * @ecclayout: [REPLACEABLE] the default ecc placement scheme - * @bbm: [REPLACEABLE] pointer to Bad Block Management - * @priv: [OPTIONAL] pointer to private chip date - */ -struct onenand_chip { - void __iomem *base; - unsigned dies; - unsigned boundary[MAX_DIES]; - loff_t diesize[MAX_DIES]; - unsigned int chipsize; - unsigned int device_id; - unsigned int version_id; - unsigned int technology; - unsigned int density_mask; - unsigned int options; - - unsigned int erase_shift; - unsigned int page_shift; - unsigned int page_mask; - unsigned int writesize; - - unsigned int bufferram_index; - struct onenand_bufferram bufferram[MAX_BUFFERRAM]; - - int (*command)(struct mtd_info *mtd, int cmd, loff_t address, size_t len); - int (*wait)(struct mtd_info *mtd, int state); - int (*bbt_wait)(struct mtd_info *mtd, int state); - void (*unlock_all)(struct mtd_info *mtd); - int (*read_bufferram)(struct mtd_info *mtd, int area, - unsigned char *buffer, int offset, size_t count); - int (*write_bufferram)(struct mtd_info *mtd, int area, - const unsigned char *buffer, int offset, size_t count); - unsigned short (*read_word)(void __iomem *addr); - void (*write_word)(unsigned short value, void __iomem *addr); - void (*mmcontrol)(struct mtd_info *mtd, int sync_read); - int (*chip_probe)(struct mtd_info *mtd); - int (*block_markbad)(struct mtd_info *mtd, loff_t ofs); - int (*scan_bbt)(struct mtd_info *mtd); - int (*enable)(struct mtd_info *mtd); - int (*disable)(struct mtd_info *mtd); - - struct completion complete; - int irq; - - spinlock_t chip_lock; - wait_queue_head_t wq; - flstate_t state; - unsigned char *page_buf; - unsigned char *oob_buf; -#ifdef CONFIG_MTD_ONENAND_VERIFY_WRITE - unsigned char *verify_buf; -#endif - - int subpagesize; - struct nand_ecclayout *ecclayout; - - void *bbm; - - void *priv; - - /* - * Shows that the current operation is composed - * of sequence of commands. For example, cache program. - * Such command status OnGo bit is checked at the end of - * sequence. - */ - unsigned int ongoing; -}; - -/* - * Helper macros - */ -#define ONENAND_PAGES_PER_BLOCK (1<<6) - -#define ONENAND_CURRENT_BUFFERRAM(this) (this->bufferram_index) -#define ONENAND_NEXT_BUFFERRAM(this) (this->bufferram_index ^ 1) -#define ONENAND_SET_NEXT_BUFFERRAM(this) (this->bufferram_index ^= 1) -#define ONENAND_SET_PREV_BUFFERRAM(this) (this->bufferram_index ^= 1) -#define ONENAND_SET_BUFFERRAM0(this) (this->bufferram_index = 0) -#define ONENAND_SET_BUFFERRAM1(this) (this->bufferram_index = 1) - -#define FLEXONENAND(this) \ - (this->device_id & DEVICE_IS_FLEXONENAND) -#define ONENAND_GET_SYS_CFG1(this) \ - (this->read_word(this->base + ONENAND_REG_SYS_CFG1)) -#define ONENAND_SET_SYS_CFG1(v, this) \ - (this->write_word(v, this->base + ONENAND_REG_SYS_CFG1)) - -#define ONENAND_IS_DDP(this) \ - (this->device_id & ONENAND_DEVICE_IS_DDP) - -#define ONENAND_IS_MLC(this) \ - (this->technology & ONENAND_TECHNOLOGY_IS_MLC) - -#ifdef CONFIG_MTD_ONENAND_2X_PROGRAM -#define ONENAND_IS_2PLANE(this) \ - (this->options & ONENAND_HAS_2PLANE) -#else -#define ONENAND_IS_2PLANE(this) (0) -#endif - -#define ONENAND_IS_CACHE_PROGRAM(this) \ - (this->options & ONENAND_HAS_CACHE_PROGRAM) - -#define ONENAND_IS_NOP_1(this) \ - (this->options & ONENAND_HAS_NOP_1) - -/* Check byte access in OneNAND */ -#define ONENAND_CHECK_BYTE_ACCESS(addr) (addr & 0x1) - -/* - * Options bits - */ -#define ONENAND_HAS_CONT_LOCK (0x0001) -#define ONENAND_HAS_UNLOCK_ALL (0x0002) -#define ONENAND_HAS_2PLANE (0x0004) -#define ONENAND_HAS_4KB_PAGE (0x0008) -#define ONENAND_HAS_CACHE_PROGRAM (0x0010) -#define ONENAND_HAS_NOP_1 (0x0020) -#define ONENAND_SKIP_UNLOCK_CHECK (0x0100) -#define ONENAND_PAGEBUF_ALLOC (0x1000) -#define ONENAND_OOBBUF_ALLOC (0x2000) -#define ONENAND_SKIP_INITIAL_UNLOCKING (0x4000) - -#define ONENAND_IS_4KB_PAGE(this) \ - (this->options & ONENAND_HAS_4KB_PAGE) - -/* - * OneNAND Flash Manufacturer ID Codes - */ -#define ONENAND_MFR_SAMSUNG 0xec -#define ONENAND_MFR_NUMONYX 0x20 - -/** - * struct onenand_manufacturers - NAND Flash Manufacturer ID Structure - * @name: Manufacturer name - * @id: manufacturer ID code of device. -*/ -struct onenand_manufacturers { - int id; - char *name; -}; - -int onenand_bbt_read_oob(struct mtd_info *mtd, loff_t from, - struct mtd_oob_ops *ops); -unsigned onenand_block(struct onenand_chip *this, loff_t addr); -loff_t onenand_addr(struct onenand_chip *this, int block); -int flexonenand_region(struct mtd_info *mtd, loff_t addr); - -struct mtd_partition; - -struct onenand_platform_data { - void (*mmcontrol)(struct mtd_info *mtd, int sync_read); - int (*read_bufferram)(struct mtd_info *mtd, int area, - unsigned char *buffer, int offset, size_t count); - struct mtd_partition *parts; - unsigned int nr_parts; -}; - -#endif /* __LINUX_MTD_ONENAND_H */ |