summaryrefslogtreecommitdiffstats
path: root/include/linux/mtd
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/mtd')
-rw-r--r--include/linux/mtd/cfi.h85
-rw-r--r--include/linux/mtd/flashchip.h7
-rw-r--r--include/linux/mtd/inftl.h4
-rw-r--r--include/linux/mtd/map.h33
-rw-r--r--include/linux/mtd/mtd.h15
-rw-r--r--include/linux/mtd/nand.h48
-rw-r--r--include/linux/mtd/plat-ram.h35
-rw-r--r--include/linux/mtd/xip.h31
8 files changed, 209 insertions, 49 deletions
diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h
index 2ed8c585021..e6b6a1c66bd 100644
--- a/include/linux/mtd/cfi.h
+++ b/include/linux/mtd/cfi.h
@@ -1,7 +1,7 @@
/* Common Flash Interface structures
* See http://support.intel.com/design/flash/technote/index.htm
- * $Id: cfi.h,v 1.50 2004/11/20 12:46:51 dwmw2 Exp $
+ * $Id: cfi.h,v 1.54 2005/06/06 23:04:36 tpoynor Exp $
*/
#ifndef __MTD_CFI_H__
@@ -148,6 +148,14 @@ struct cfi_pri_intelext {
uint8_t extra[0];
} __attribute__((packed));
+struct cfi_intelext_otpinfo {
+ uint32_t ProtRegAddr;
+ uint16_t FactGroups;
+ uint8_t FactProtRegSize;
+ uint16_t UserGroups;
+ uint8_t UserProtRegSize;
+} __attribute__((packed));
+
struct cfi_intelext_blockinfo {
uint16_t NumIdentBlocks;
uint16_t BlockSize;
@@ -244,7 +252,7 @@ static inline uint32_t cfi_build_cmd_addr(uint32_t cmd_ofs, int interleave, int
* It looks too long to be inline, but in the common case it should almost all
* get optimised away.
*/
-static inline map_word cfi_build_cmd(u_char cmd, struct map_info *map, struct cfi_private *cfi)
+static inline map_word cfi_build_cmd(u_long cmd, struct map_info *map, struct cfi_private *cfi)
{
map_word val = { {0} };
int wordwidth, words_per_bus, chip_mode, chips_per_word;
@@ -307,6 +315,69 @@ static inline map_word cfi_build_cmd(u_char cmd, struct map_info *map, struct cf
}
#define CMD(x) cfi_build_cmd((x), map, cfi)
+
+static inline unsigned char cfi_merge_status(map_word val, struct map_info *map,
+ struct cfi_private *cfi)
+{
+ int wordwidth, words_per_bus, chip_mode, chips_per_word;
+ unsigned long onestat, res = 0;
+ int i;
+
+ /* We do it this way to give the compiler a fighting chance
+ of optimising away all the crap for 'bankwidth' larger than
+ an unsigned long, in the common case where that support is
+ disabled */
+ if (map_bankwidth_is_large(map)) {
+ wordwidth = sizeof(unsigned long);
+ words_per_bus = (map_bankwidth(map)) / wordwidth; // i.e. normally 1
+ } else {
+ wordwidth = map_bankwidth(map);
+ words_per_bus = 1;
+ }
+
+ chip_mode = map_bankwidth(map) / cfi_interleave(cfi);
+ chips_per_word = wordwidth * cfi_interleave(cfi) / map_bankwidth(map);
+
+ onestat = val.x[0];
+ /* Or all status words together */
+ for (i=1; i < words_per_bus; i++) {
+ onestat |= val.x[i];
+ }
+
+ res = onestat;
+ switch(chips_per_word) {
+ default: BUG();
+#if BITS_PER_LONG >= 64
+ case 8:
+ res |= (onestat >> (chip_mode * 32));
+#endif
+ case 4:
+ res |= (onestat >> (chip_mode * 16));
+ case 2:
+ res |= (onestat >> (chip_mode * 8));
+ case 1:
+ ;
+ }
+
+ /* Last, determine what the bit-pattern should be for a single
+ device, according to chip mode and endianness... */
+ switch (chip_mode) {
+ case 1:
+ break;
+ case 2:
+ res = cfi16_to_cpu(res);
+ break;
+ case 4:
+ res = cfi32_to_cpu(res);
+ break;
+ default: BUG();
+ }
+ return res;
+}
+
+#define MERGESTATUS(x) cfi_merge_status((x), map, cfi)
+
+
/*
* Sends a CFI command to a bank of flash for the given geometry.
*
@@ -357,16 +428,6 @@ static inline void cfi_udelay(int us)
}
}
-static inline void cfi_spin_lock(spinlock_t *mutex)
-{
- spin_lock_bh(mutex);
-}
-
-static inline void cfi_spin_unlock(spinlock_t *mutex)
-{
- spin_unlock_bh(mutex);
-}
-
struct cfi_extquery *cfi_read_pri(struct map_info *map, uint16_t adr, uint16_t size,
const char* name);
struct cfi_fixup {
diff --git a/include/linux/mtd/flashchip.h b/include/linux/mtd/flashchip.h
index c66ba812bf9..675776fa3e2 100644
--- a/include/linux/mtd/flashchip.h
+++ b/include/linux/mtd/flashchip.h
@@ -6,7 +6,7 @@
*
* (C) 2000 Red Hat. GPLd.
*
- * $Id: flashchip.h,v 1.15 2004/11/05 22:41:06 nico Exp $
+ * $Id: flashchip.h,v 1.17 2005/03/14 18:27:15 bjd Exp $
*
*/
@@ -29,6 +29,7 @@ typedef enum {
FL_ERASE_SUSPENDED,
FL_WRITING,
FL_WRITING_TO_BUFFER,
+ FL_OTP_WRITE,
FL_WRITE_SUSPENDING,
FL_WRITE_SUSPENDED,
FL_PM_SUSPENDED,
@@ -62,8 +63,8 @@ struct flchip {
flstate_t state;
flstate_t oldstate;
- int write_suspended:1;
- int erase_suspended:1;
+ unsigned int write_suspended:1;
+ unsigned int erase_suspended:1;
unsigned long in_progress_block_addr;
spinlock_t *mutex;
diff --git a/include/linux/mtd/inftl.h b/include/linux/mtd/inftl.h
index b52c8cbd235..0268125a627 100644
--- a/include/linux/mtd/inftl.h
+++ b/include/linux/mtd/inftl.h
@@ -3,7 +3,7 @@
*
* (C) Copyright 2002, Greg Ungerer (gerg@snapgear.com)
*
- * $Id: inftl.h,v 1.6 2004/06/30 14:49:00 dbrown Exp $
+ * $Id: inftl.h,v 1.7 2005/06/13 13:08:45 sean Exp $
*/
#ifndef __MTD_INFTL_H__
@@ -20,7 +20,7 @@
#include <mtd/inftl-user.h>
#ifndef INFTL_MAJOR
-#define INFTL_MAJOR 94
+#define INFTL_MAJOR 96
#endif
#define INFTL_PARTN_BITS 4
diff --git a/include/linux/mtd/map.h b/include/linux/mtd/map.h
index f0268b99c90..142963f01d2 100644
--- a/include/linux/mtd/map.h
+++ b/include/linux/mtd/map.h
@@ -1,6 +1,6 @@
/* Overhauled routines for dealing with different mmap regions of flash */
-/* $Id: map.h,v 1.46 2005/01/05 17:09:44 dwmw2 Exp $ */
+/* $Id: map.h,v 1.52 2005/05/25 10:29:41 gleixner Exp $ */
#ifndef __LINUX_MTD_MAP_H__
#define __LINUX_MTD_MAP_H__
@@ -263,6 +263,17 @@ static inline map_word map_word_and(struct map_info *map, map_word val1, map_wor
return r;
}
+static inline map_word map_word_clr(struct map_info *map, map_word val1, map_word val2)
+{
+ map_word r;
+ int i;
+
+ for (i=0; i<map_words(map); i++) {
+ r.x[i] = val1.x[i] & ~val2.x[i];
+ }
+ return r;
+}
+
static inline map_word map_word_or(struct map_info *map, map_word val1, map_word val2)
{
map_word r;
@@ -273,6 +284,7 @@ static inline map_word map_word_or(struct map_info *map, map_word val1, map_word
}
return r;
}
+
#define map_word_andequal(m, a, b, z) map_word_equal(m, z, map_word_and(m, a, b))
static inline int map_word_bitsset(struct map_info *map, map_word val1, map_word val2)
@@ -328,16 +340,27 @@ static inline map_word map_word_load_partial(struct map_info *map, map_word orig
return orig;
}
+#if BITS_PER_LONG < 64
+#define MAP_FF_LIMIT 4
+#else
+#define MAP_FF_LIMIT 8
+#endif
+
static inline map_word map_word_ff(struct map_info *map)
{
map_word r;
int i;
-
- for (i=0; i<map_words(map); i++) {
- r.x[i] = ~0UL;
+
+ if (map_bankwidth(map) < MAP_FF_LIMIT) {
+ int bw = 8 * map_bankwidth(map);
+ r.x[0] = (1 << bw) - 1;
+ } else {
+ for (i=0; i<map_words(map); i++)
+ r.x[i] = ~0UL;
}
return r;
}
+
static inline map_word inline_map_read(struct map_info *map, unsigned long ofs)
{
map_word r;
@@ -405,7 +428,7 @@ extern void simple_map_init(struct map_info *);
#define simple_map_init(map) BUG_ON(!map_bankwidth_supported((map)->bankwidth))
-#define map_is_linear(map) (1)
+#define map_is_linear(map) ({ (void)(map); 1; })
#endif /* !CONFIG_MTD_COMPLEX_MAPPINGS */
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index b3d134392b3..c50c3f3927d 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -1,5 +1,5 @@
/*
- * $Id: mtd.h,v 1.56 2004/08/09 18:46:04 dmarlin Exp $
+ * $Id: mtd.h,v 1.59 2005/04/11 10:19:02 gleixner Exp $
*
* Copyright (C) 1999-2003 David Woodhouse <dwmw2@infradead.org> et al.
*
@@ -18,6 +18,7 @@
#include <linux/types.h>
#include <linux/module.h>
#include <linux/uio.h>
+#include <linux/notifier.h>
#include <linux/mtd/compatmac.h>
#include <mtd/mtd-abi.h>
@@ -69,7 +70,6 @@ struct mtd_info {
u_int32_t oobblock; // Size of OOB blocks (e.g. 512)
u_int32_t oobsize; // Amount of OOB data per block (e.g. 16)
- u_int32_t oobavail; // Number of bytes in OOB area available for fs
u_int32_t ecctype;
u_int32_t eccsize;
@@ -80,6 +80,7 @@ struct mtd_info {
// oobinfo is a nand_oobinfo structure, which can be set by iotcl (MEMSETOOBINFO)
struct nand_oobinfo oobinfo;
+ u_int32_t oobavail; // Number of bytes in OOB area available for fs
/* Data for variable erase regions. If numeraseregions is zero,
* it means that the whole device has erasesize as given above.
@@ -113,12 +114,12 @@ struct mtd_info {
* flash devices. The user data is one time programmable but the
* factory data is read only.
*/
- int (*read_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
-
+ int (*get_fact_prot_info) (struct mtd_info *mtd, struct otp_info *buf, size_t len);
int (*read_fact_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
-
- /* This function is not yet implemented */
+ int (*get_user_prot_info) (struct mtd_info *mtd, struct otp_info *buf, size_t len);
+ int (*read_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
int (*write_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
+ int (*lock_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len);
/* kvec-based read/write methods. We need these especially for NAND flash,
with its limited number of write cycles per erase.
@@ -147,6 +148,8 @@ struct mtd_info {
int (*block_isbad) (struct mtd_info *mtd, loff_t ofs);
int (*block_markbad) (struct mtd_info *mtd, loff_t ofs);
+ struct notifier_block reboot_notifier; /* default mode before reboot */
+
void *priv;
struct module *owner;
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 9a19c65abd7..9b5b7621758 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -5,7 +5,7 @@
* Steven J. Hill <sjhill@realitydiluted.com>
* Thomas Gleixner <tglx@linutronix.de>
*
- * $Id: nand.h,v 1.68 2004/11/12 10:40:37 gleixner Exp $
+ * $Id: nand.h,v 1.73 2005/05/31 19:39:17 gleixner Exp $
*
* 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
@@ -48,6 +48,10 @@
* 02-08-2004 tglx added option field to nand structure for chip anomalities
* 05-25-2004 tglx added bad block table support, ST-MICRO manufacturer id
* update of nand_chip structure description
+ * 01-17-2005 dmarlin added extended commands for AG-AND device and added option
+ * for BBT_AUTO_REFRESH.
+ * 01-20-2005 dmarlin added optional pointer to hardware specific callback for
+ * extra error status checks.
*/
#ifndef __LINUX_MTD_NAND_H
#define __LINUX_MTD_NAND_H
@@ -115,6 +119,25 @@ extern int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_
#define NAND_CMD_READSTART 0x30
#define NAND_CMD_CACHEDPROG 0x15
+/* Extended commands for AG-AND device */
+/*
+ * Note: the command for NAND_CMD_DEPLETE1 is really 0x00 but
+ * there is no way to distinguish that from NAND_CMD_READ0
+ * until the remaining sequence of commands has been completed
+ * so add a high order bit and mask it off in the command.
+ */
+#define NAND_CMD_DEPLETE1 0x100
+#define NAND_CMD_DEPLETE2 0x38
+#define NAND_CMD_STATUS_MULTI 0x71
+#define NAND_CMD_STATUS_ERROR 0x72
+/* multi-bank error status (banks 0-3) */
+#define NAND_CMD_STATUS_ERROR0 0x73
+#define NAND_CMD_STATUS_ERROR1 0x74
+#define NAND_CMD_STATUS_ERROR2 0x75
+#define NAND_CMD_STATUS_ERROR3 0x76
+#define NAND_CMD_STATUS_RESET 0x7f
+#define NAND_CMD_STATUS_CLEAR 0xff
+
/* Status bits */
#define NAND_STATUS_FAIL 0x01
#define NAND_STATUS_FAIL_N1 0x02
@@ -143,7 +166,7 @@ extern int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_
/*
* Constants for Hardware ECC
-*/
+ */
/* Reset Hardware ECC for read */
#define NAND_ECC_READ 0
/* Reset Hardware ECC for write */
@@ -151,6 +174,10 @@ extern int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_
/* Enable Hardware ECC before syndrom is read back from flash */
#define NAND_ECC_READSYN 2
+/* Bit mask for flags passed to do_nand_read_ecc */
+#define NAND_GET_DEVICE 0x80
+
+
/* Option constants for bizarre disfunctionality and real
* features
*/
@@ -170,6 +197,10 @@ extern int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_
/* Chip has a array of 4 pages which can be read without
* additional ready /busy waits */
#define NAND_4PAGE_ARRAY 0x00000040
+/* Chip requires that BBT is periodically rewritten to prevent
+ * bits from adjacent blocks from 'leaking' in altering data.
+ * This happens with the Renesas AG-AND chips, possibly others. */
+#define BBT_AUTO_REFRESH 0x00000080
/* Options valid for Samsung large page devices */
#define NAND_SAMSUNG_LP_OPTIONS \
@@ -192,7 +223,8 @@ extern int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_
* This can only work if we have the ecc bytes directly behind the
* data bytes. Applies for DOC and AG-AND Renesas HW Reed Solomon generators */
#define NAND_HWECC_SYNDROME 0x00020000
-
+/* This option skips the bbt scan during initialization. */
+#define NAND_SKIP_BBTSCAN 0x00040000
/* Options set by nand scan */
/* Nand scan has allocated oob_buf */
@@ -221,10 +253,13 @@ struct nand_chip;
* struct nand_hw_control - Control structure for hardware controller (e.g ECC generator) shared among independend devices
* @lock: protection lock
* @active: the mtd device which holds the controller currently
+ * @wq: wait queue to sleep on if a NAND operation is in progress
+ * used instead of the per chip wait queue when a hw controller is available
*/
struct nand_hw_control {
spinlock_t lock;
struct nand_chip *active;
+ wait_queue_head_t wq;
};
/**
@@ -283,6 +318,8 @@ struct nand_hw_control {
* @badblock_pattern: [REPLACEABLE] bad block scan pattern used for initial bad block scan
* @controller: [OPTIONAL] a pointer to a hardware controller structure which is shared among multiple independend devices
* @priv: [OPTIONAL] pointer to private chip date
+ * @errstat: [OPTIONAL] hardware specific function to perform additional error status checks
+ * (determine if errors are correctable)
*/
struct nand_chip {
@@ -338,6 +375,7 @@ struct nand_chip {
struct nand_bbt_descr *badblock_pattern;
struct nand_hw_control *controller;
void *priv;
+ int (*errstat)(struct mtd_info *mtd, struct nand_chip *this, int state, int status, int page);
};
/*
@@ -349,6 +387,7 @@ struct nand_chip {
#define NAND_MFR_NATIONAL 0x8f
#define NAND_MFR_RENESAS 0x07
#define NAND_MFR_STMICRO 0x20
+#define NAND_MFR_HYNIX 0xad
/**
* struct nand_flash_dev - NAND Flash Device ID Structure
@@ -459,6 +498,9 @@ extern int nand_update_bbt (struct mtd_info *mtd, loff_t offs);
extern int nand_default_bbt (struct mtd_info *mtd);
extern int nand_isbad_bbt (struct mtd_info *mtd, loff_t offs, int allowbbt);
extern int nand_erase_nand (struct mtd_info *mtd, struct erase_info *instr, int allowbbt);
+extern int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
+ size_t * retlen, u_char * buf, u_char * oob_buf,
+ struct nand_oobinfo *oobsel, int flags);
/*
* Constants for oob configuration
diff --git a/include/linux/mtd/plat-ram.h b/include/linux/mtd/plat-ram.h
new file mode 100644
index 00000000000..2332eda07e0
--- /dev/null
+++ b/include/linux/mtd/plat-ram.h
@@ -0,0 +1,35 @@
+/* linux/include/mtd/plat-ram.h
+ *
+ * (c) 2004 Simtec Electronics
+ * http://www.simtec.co.uk/products/SWLINUX/
+ * Ben Dooks <ben@simtec.co.uk>
+ *
+ * Generic platform device based RAM map
+ *
+ * $Id: plat-ram.h,v 1.2 2005/01/24 00:37:40 bjd Exp $
+ *
+ * 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_PLATRAM_H
+#define __LINUX_MTD_PLATRAM_H __FILE__
+
+#define PLATRAM_RO (0)
+#define PLATRAM_RW (1)
+
+struct platdata_mtd_ram {
+ char *mapname;
+ char **probes;
+ struct mtd_partition *partitions;
+ int nr_partitions;
+ int bankwidth;
+
+ /* control callbacks */
+
+ void (*set_rw)(struct device *dev, int to);
+};
+
+#endif /* __LINUX_MTD_PLATRAM_H */
diff --git a/include/linux/mtd/xip.h b/include/linux/mtd/xip.h
index fc071125cbc..7b7deef6b18 100644
--- a/include/linux/mtd/xip.h
+++ b/include/linux/mtd/xip.h
@@ -58,22 +58,16 @@
* returned value is <= the real elapsed time.
* note 2: this should be able to cope with a few seconds without
* overflowing.
+ *
+ * xip_iprefetch()
+ *
+ * Macro to fill instruction prefetch
+ * e.g. a series of nops: asm volatile (".rep 8; nop; .endr");
*/
-#if defined(CONFIG_ARCH_SA1100) || defined(CONFIG_ARCH_PXA)
-
-#include <asm/hardware.h>
-#ifdef CONFIG_ARCH_PXA
-#include <asm/arch/pxa-regs.h>
-#endif
-
-#define xip_irqpending() (ICIP & ICMR)
-
-/* we sample OSCR and convert desired delta to usec (1/4 ~= 1000000/3686400) */
-#define xip_currtime() (OSCR)
-#define xip_elapsed_since(x) (signed)((OSCR - (x)) / 4)
+#include <asm/mtd-xip.h>
-#else
+#ifndef xip_irqpending
#warning "missing IRQ and timer primitives for XIP MTD support"
#warning "some of the XIP MTD support code will be disabled"
@@ -85,16 +79,17 @@
#endif
+#ifndef xip_iprefetch
+#define xip_iprefetch() do { } while (0)
+#endif
+
/*
* xip_cpu_idle() is used when waiting for a delay equal or larger than
* the system timer tick period. This should put the CPU into idle mode
* to save power and to be woken up only when some interrupts are pending.
- * As above, this should not rely upon standard kernel code.
+ * This should not rely upon standard kernel code.
*/
-
-#if defined(CONFIG_CPU_XSCALE)
-#define xip_cpu_idle() asm volatile ("mcr p14, 0, %0, c7, c0, 0" :: "r" (1))
-#else
+#ifndef xip_cpu_idle
#define xip_cpu_idle() do { } while (0)
#endif
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-23 17:34:31 +0000