Skip to content
Projects
Groups
Snippets
Help
Loading...
Help
Support
Keyboard shortcuts
?
Submit feedback
Contribute to GitLab
Sign in / Register
Toggle navigation
L
linux
Project overview
Project overview
Details
Activity
Releases
Repository
Repository
Files
Commits
Branches
Tags
Contributors
Graph
Compare
Issues
0
Issues
0
List
Boards
Labels
Milestones
Merge Requests
0
Merge Requests
0
Analytics
Analytics
Repository
Value Stream
Wiki
Wiki
Snippets
Snippets
Members
Members
Collapse sidebar
Close sidebar
Activity
Graph
Create a new issue
Commits
Issue Boards
Open sidebar
nexedi
linux
Commits
2c0a2bed
Commit
2c0a2bed
authored
May 23, 2006
by
Thomas Gleixner
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
[MTD] NAND whitespace and formatting cleanup
Signed-off-by:
Thomas Gleixner
<
tglx@linutronix.de
>
parent
dcb09328
Changes
2
Hide whitespace changes
Inline
Side-by-side
Showing
2 changed files
with
96 additions
and
111 deletions
+96
-111
drivers/mtd/nand/nand_base.c
drivers/mtd/nand/nand_base.c
+62
-42
include/linux/mtd/nand.h
include/linux/mtd/nand.h
+34
-69
No files found.
drivers/mtd/nand/nand_base.c
View file @
2c0a2bed
...
@@ -10,7 +10,7 @@
...
@@ -10,7 +10,7 @@
* http://www.linux-mtd.infradead.org/tech/nand.html
* http://www.linux-mtd.infradead.org/tech/nand.html
*
*
* Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
* Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
*
2002 Thomas Gleixner (tglx@linutronix.de)
* 2002 Thomas Gleixner (tglx@linutronix.de)
*
*
* 02-08-2004 tglx: support for strange chips, which cannot auto increment
* 02-08-2004 tglx: support for strange chips, which cannot auto increment
* pages on read / read_oob
* pages on read / read_oob
...
@@ -25,26 +25,30 @@
...
@@ -25,26 +25,30 @@
* 05-19-2004 tglx: Basic support for Renesas AG-AND chips
* 05-19-2004 tglx: Basic support for Renesas AG-AND chips
*
*
* 09-24-2004 tglx: add support for hardware controllers (e.g. ECC) shared
* 09-24-2004 tglx: add support for hardware controllers (e.g. ECC) shared
* among multiple independend devices. Suggestions and initial patch
* among multiple independend devices. Suggestions and initial
* from Ben Dooks <ben-mtd@fluff.org>
* patch from Ben Dooks <ben-mtd@fluff.org>
*
*
* 12-05-2004 dmarlin: add workaround for Renesas AG-AND chips "disturb" issue.
* 12-05-2004 dmarlin: add workaround for Renesas AG-AND chips "disturb"
* Basically, any block not rewritten may lose data when surrounding blocks
* issue. Basically, any block not rewritten may lose data when
* are rewritten many times. JFFS2 ensures this doesn't happen for blocks
* surrounding blocks are rewritten many times. JFFS2 ensures
* it uses, but the Bad Block Table(s) may not be rewritten. To ensure they
* this doesn't happen for blocks it uses, but the Bad Block
* do not lose data, force them to be rewritten when some of the surrounding
* Table(s) may not be rewritten. To ensure they do not lose
* blocks are erased. Rather than tracking a specific nearby block (which
* data, force them to be rewritten when some of the surrounding
* could itself go bad), use a page address 'mask' to select several blocks
* blocks are erased. Rather than tracking a specific nearby
* in the same area, and rewrite the BBT when any of them are erased.
* block (which could itself go bad), use a page address 'mask' to
*
* select several blocks in the same area, and rewrite the BBT
* 01-03-2005 dmarlin: added support for the device recovery command sequence for Renesas
* when any of them are erased.
* AG-AND chips. If there was a sudden loss of power during an erase operation,
*
* a "device recovery" operation must be performed when power is restored
* 01-03-2005 dmarlin: added support for the device recovery command sequence
* to ensure correct operation.
* for Renesas AG-AND chips. If there was a sudden loss of power
*
* during an erase operation, a "device recovery" operation must
* 01-20-2005 dmarlin: added support for optional hardware specific callback routine to
* be performed when power is restored to ensure correct
* perform extra error status checks on erase and write failures. This required
* operation.
* adding a wrapper function for nand_read_ecc.
*
* 01-20-2005 dmarlin: added support for optional hardware specific callback
* routine to perform extra error status checks on erase and write
* failures. This required adding a wrapper function for
* nand_read_ecc.
*
*
* 08-20-2005 vwool: suspend/resume added
* 08-20-2005 vwool: suspend/resume added
*
*
...
@@ -132,32 +136,43 @@ static void nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len);
...
@@ -132,32 +136,43 @@ static void nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len);
static
void
nand_read_buf
(
struct
mtd_info
*
mtd
,
u_char
*
buf
,
int
len
);
static
void
nand_read_buf
(
struct
mtd_info
*
mtd
,
u_char
*
buf
,
int
len
);
static
int
nand_verify_buf
(
struct
mtd_info
*
mtd
,
const
u_char
*
buf
,
int
len
);
static
int
nand_verify_buf
(
struct
mtd_info
*
mtd
,
const
u_char
*
buf
,
int
len
);
static
int
nand_read
(
struct
mtd_info
*
mtd
,
loff_t
from
,
size_t
len
,
size_t
*
retlen
,
u_char
*
buf
);
static
int
nand_read
(
struct
mtd_info
*
mtd
,
loff_t
from
,
size_t
len
,
size_t
*
retlen
,
u_char
*
buf
);
static
int
nand_read_ecc
(
struct
mtd_info
*
mtd
,
loff_t
from
,
size_t
len
,
static
int
nand_read_ecc
(
struct
mtd_info
*
mtd
,
loff_t
from
,
size_t
len
,
size_t
*
retlen
,
u_char
*
buf
,
u_char
*
eccbuf
,
struct
nand_oobinfo
*
oobsel
);
size_t
*
retlen
,
u_char
*
buf
,
u_char
*
eccbuf
,
static
int
nand_read_oob
(
struct
mtd_info
*
mtd
,
loff_t
from
,
size_t
len
,
size_t
*
retlen
,
u_char
*
buf
);
struct
nand_oobinfo
*
oobsel
);
static
int
nand_write
(
struct
mtd_info
*
mtd
,
loff_t
to
,
size_t
len
,
size_t
*
retlen
,
const
u_char
*
buf
);
static
int
nand_read_oob
(
struct
mtd_info
*
mtd
,
loff_t
from
,
size_t
len
,
size_t
*
retlen
,
u_char
*
buf
);
static
int
nand_write
(
struct
mtd_info
*
mtd
,
loff_t
to
,
size_t
len
,
size_t
*
retlen
,
const
u_char
*
buf
);
static
int
nand_write_ecc
(
struct
mtd_info
*
mtd
,
loff_t
to
,
size_t
len
,
static
int
nand_write_ecc
(
struct
mtd_info
*
mtd
,
loff_t
to
,
size_t
len
,
size_t
*
retlen
,
const
u_char
*
buf
,
u_char
*
eccbuf
,
struct
nand_oobinfo
*
oobsel
);
size_t
*
retlen
,
const
u_char
*
buf
,
u_char
*
eccbuf
,
static
int
nand_write_oob
(
struct
mtd_info
*
mtd
,
loff_t
to
,
size_t
len
,
size_t
*
retlen
,
const
u_char
*
buf
);
struct
nand_oobinfo
*
oobsel
);
static
int
nand_writev
(
struct
mtd_info
*
mtd
,
const
struct
kvec
*
vecs
,
unsigned
long
count
,
loff_t
to
,
size_t
*
retlen
);
static
int
nand_write_oob
(
struct
mtd_info
*
mtd
,
loff_t
to
,
size_t
len
,
size_t
*
retlen
,
const
u_char
*
buf
);
static
int
nand_writev
(
struct
mtd_info
*
mtd
,
const
struct
kvec
*
vecs
,
unsigned
long
count
,
loff_t
to
,
size_t
*
retlen
);
static
int
nand_writev_ecc
(
struct
mtd_info
*
mtd
,
const
struct
kvec
*
vecs
,
static
int
nand_writev_ecc
(
struct
mtd_info
*
mtd
,
const
struct
kvec
*
vecs
,
unsigned
long
count
,
loff_t
to
,
size_t
*
retlen
,
u_char
*
eccbuf
,
unsigned
long
count
,
loff_t
to
,
size_t
*
retlen
,
struct
nand_oobinfo
*
oobsel
);
u_char
*
eccbuf
,
struct
nand_oobinfo
*
oobsel
);
static
int
nand_erase
(
struct
mtd_info
*
mtd
,
struct
erase_info
*
instr
);
static
int
nand_erase
(
struct
mtd_info
*
mtd
,
struct
erase_info
*
instr
);
static
void
nand_sync
(
struct
mtd_info
*
mtd
);
static
void
nand_sync
(
struct
mtd_info
*
mtd
);
/* Some internal functions */
/* Some internal functions */
static
int
nand_write_page
(
struct
mtd_info
*
mtd
,
struct
nand_chip
*
this
,
int
page
,
u_char
*
oob_buf
,
static
int
nand_write_page
(
struct
mtd_info
*
mtd
,
struct
nand_chip
*
this
,
int
page
,
u_char
*
oob_buf
,
struct
nand_oobinfo
*
oobsel
,
int
mode
);
struct
nand_oobinfo
*
oobsel
,
int
mode
);
#ifdef CONFIG_MTD_NAND_VERIFY_WRITE
#ifdef CONFIG_MTD_NAND_VERIFY_WRITE
static
int
nand_verify_pages
(
struct
mtd_info
*
mtd
,
struct
nand_chip
*
this
,
int
page
,
int
numpages
,
static
int
nand_verify_pages
(
struct
mtd_info
*
mtd
,
struct
nand_chip
*
this
,
u_char
*
oob_buf
,
struct
nand_oobinfo
*
oobsel
,
int
chipnr
,
int
oobmode
);
int
page
,
int
numpages
,
u_char
*
oob_buf
,
struct
nand_oobinfo
*
oobsel
,
int
chipnr
,
int
oobmode
);
#else
#else
#define nand_verify_pages(...) (0)
#define nand_verify_pages(...) (0)
#endif
#endif
static
int
nand_get_device
(
struct
nand_chip
*
this
,
struct
mtd_info
*
mtd
,
int
new_state
);
static
int
nand_get_device
(
struct
nand_chip
*
this
,
struct
mtd_info
*
mtd
,
int
new_state
);
/**
/**
* nand_release_device - [GENERIC] release chip
* nand_release_device - [GENERIC] release chip
...
@@ -424,14 +439,16 @@ static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
...
@@ -424,14 +439,16 @@ static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
page
=
(
int
)
ofs
;
page
=
(
int
)
ofs
;
if
(
this
->
options
&
NAND_BUSWIDTH_16
)
{
if
(
this
->
options
&
NAND_BUSWIDTH_16
)
{
this
->
cmdfunc
(
mtd
,
NAND_CMD_READOOB
,
this
->
badblockpos
&
0xFE
,
page
&
this
->
pagemask
);
this
->
cmdfunc
(
mtd
,
NAND_CMD_READOOB
,
this
->
badblockpos
&
0xFE
,
page
&
this
->
pagemask
);
bad
=
cpu_to_le16
(
this
->
read_word
(
mtd
));
bad
=
cpu_to_le16
(
this
->
read_word
(
mtd
));
if
(
this
->
badblockpos
&
0x1
)
if
(
this
->
badblockpos
&
0x1
)
bad
>>=
8
;
bad
>>=
8
;
if
((
bad
&
0xFF
)
!=
0xff
)
if
((
bad
&
0xFF
)
!=
0xff
)
res
=
1
;
res
=
1
;
}
else
{
}
else
{
this
->
cmdfunc
(
mtd
,
NAND_CMD_READOOB
,
this
->
badblockpos
,
page
&
this
->
pagemask
);
this
->
cmdfunc
(
mtd
,
NAND_CMD_READOOB
,
this
->
badblockpos
,
page
&
this
->
pagemask
);
if
(
this
->
read_byte
(
mtd
)
!=
0xff
)
if
(
this
->
read_byte
(
mtd
)
!=
0xff
)
res
=
1
;
res
=
1
;
}
}
...
@@ -498,7 +515,8 @@ static int nand_check_wp(struct mtd_info *mtd)
...
@@ -498,7 +515,8 @@ static int nand_check_wp(struct mtd_info *mtd)
* Check, if the block is bad. Either by reading the bad block table or
* Check, if the block is bad. Either by reading the bad block table or
* calling of the scan function.
* calling of the scan function.
*/
*/
static
int
nand_block_checkbad
(
struct
mtd_info
*
mtd
,
loff_t
ofs
,
int
getchip
,
int
allowbbt
)
static
int
nand_block_checkbad
(
struct
mtd_info
*
mtd
,
loff_t
ofs
,
int
getchip
,
int
allowbbt
)
{
{
struct
nand_chip
*
this
=
mtd
->
priv
;
struct
nand_chip
*
this
=
mtd
->
priv
;
...
@@ -540,7 +558,8 @@ static void nand_wait_ready(struct mtd_info *mtd)
...
@@ -540,7 +558,8 @@ static void nand_wait_ready(struct mtd_info *mtd)
* Send command to NAND device. This function is used for small page
* Send command to NAND device. This function is used for small page
* devices (256/512 Bytes per page)
* devices (256/512 Bytes per page)
*/
*/
static
void
nand_command
(
struct
mtd_info
*
mtd
,
unsigned
command
,
int
column
,
int
page_addr
)
static
void
nand_command
(
struct
mtd_info
*
mtd
,
unsigned
command
,
int
column
,
int
page_addr
)
{
{
register
struct
nand_chip
*
this
=
mtd
->
priv
;
register
struct
nand_chip
*
this
=
mtd
->
priv
;
...
@@ -755,7 +774,8 @@ static void nand_command_lp(struct mtd_info *mtd, unsigned command, int column,
...
@@ -755,7 +774,8 @@ static void nand_command_lp(struct mtd_info *mtd, unsigned command, int column,
*
*
* Get the device and lock it for exclusive access
* Get the device and lock it for exclusive access
*/
*/
static
int
nand_get_device
(
struct
nand_chip
*
this
,
struct
mtd_info
*
mtd
,
int
new_state
)
static
int
nand_get_device
(
struct
nand_chip
*
this
,
struct
mtd_info
*
mtd
,
int
new_state
)
{
{
spinlock_t
*
lock
=
&
this
->
controller
->
lock
;
spinlock_t
*
lock
=
&
this
->
controller
->
lock
;
wait_queue_head_t
*
wq
=
&
this
->
controller
->
wq
;
wait_queue_head_t
*
wq
=
&
this
->
controller
->
wq
;
...
@@ -942,7 +962,7 @@ static int nand_write_page(struct mtd_info *mtd, struct nand_chip *this, int pag
...
@@ -942,7 +962,7 @@ static int nand_write_page(struct mtd_info *mtd, struct nand_chip *this, int pag
* nand_verify_pages - [GENERIC] verify the chip contents after a write
* nand_verify_pages - [GENERIC] verify the chip contents after a write
* @mtd: MTD device structure
* @mtd: MTD device structure
* @this: NAND chip structure
* @this: NAND chip structure
* @page:
startpage inside the chip, must be called with (page & this->pagemask)
* @page: startpage inside the chip, must be called with (page & this->pagemask)
* @numpages: number of pages to verify
* @numpages: number of pages to verify
* @oob_buf: out of band data buffer
* @oob_buf: out of band data buffer
* @oobsel: out of band selecttion structre
* @oobsel: out of band selecttion structre
...
@@ -2293,8 +2313,8 @@ static void nand_resume(struct mtd_info *mtd)
...
@@ -2293,8 +2313,8 @@ static void nand_resume(struct mtd_info *mtd)
if
(
this
->
state
==
FL_PM_SUSPENDED
)
if
(
this
->
state
==
FL_PM_SUSPENDED
)
nand_release_device
(
mtd
);
nand_release_device
(
mtd
);
else
else
printk
(
KERN_ERR
"
resume() called for the chip which is not in suspended state
\n
"
);
printk
(
KERN_ERR
"
nand_resume() called for a chip which is not "
"in suspended state
\n
"
);
}
}
/*
/*
...
...
include/linux/mtd/nand.h
View file @
2c0a2bed
...
@@ -11,47 +11,11 @@
...
@@ -11,47 +11,11 @@
* it under the terms of the GNU General Public License version 2 as
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
* published by the Free Software Foundation.
*
*
*
Info:
* Info:
*
Contains standard defines and IDs for NAND flash devices
*
Contains standard defines and IDs for NAND flash devices
*
*
* Changelog:
* Changelog:
* 01-31-2000 DMW Created
* See git changelog.
* 09-18-2000 SJH Moved structure out of the Disk-On-Chip drivers
* so it can be used by other NAND flash device
* drivers. I also changed the copyright since none
* of the original contents of this file are specific
* to DoC devices. David can whack me with a baseball
* bat later if I did something naughty.
* 10-11-2000 SJH Added private NAND flash structure for driver
* 10-24-2000 SJH Added prototype for 'nand_scan' function
* 10-29-2001 TG changed nand_chip structure to support
* hardwarespecific function for accessing control lines
* 02-21-2002 TG added support for different read/write adress and
* ready/busy line access function
* 02-26-2002 TG added chip_delay to nand_chip structure to optimize
* command delay times for different chips
* 04-28-2002 TG OOB config defines moved from nand.c to avoid duplicate
* defines in jffs2/wbuf.c
* 08-07-2002 TG forced bad block location to byte 5 of OOB, even if
* CONFIG_MTD_NAND_ECC_JFFS2 is not set
* 08-10-2002 TG extensions to nand_chip structure to support HW-ECC
*
* 08-29-2002 tglx nand_chip structure: data_poi for selecting
* internal / fs-driver buffer
* support for 6byte/512byte hardware ECC
* read_ecc, write_ecc extended for different oob-layout
* oob layout selections: NAND_NONE_OOB, NAND_JFFS2_OOB,
* NAND_YAFFS_OOB
* 11-25-2002 tglx Added Manufacturer code FUJITSU, NATIONAL
* Split manufacturer and device ID structures
*
* 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
#ifndef __LINUX_MTD_NAND_H
#define __LINUX_MTD_NAND_H
#define __LINUX_MTD_NAND_H
...
@@ -68,7 +32,8 @@ extern int nand_scan (struct mtd_info *mtd, int max_chips);
...
@@ -68,7 +32,8 @@ extern int nand_scan (struct mtd_info *mtd, int max_chips);
extern
void
nand_release
(
struct
mtd_info
*
mtd
);
extern
void
nand_release
(
struct
mtd_info
*
mtd
);
/* Read raw data from the device without ECC */
/* Read raw data from the device without ECC */
extern
int
nand_read_raw
(
struct
mtd_info
*
mtd
,
uint8_t
*
buf
,
loff_t
from
,
size_t
len
,
size_t
ooblen
);
extern
int
nand_read_raw
(
struct
mtd_info
*
mtd
,
uint8_t
*
buf
,
loff_t
from
,
size_t
len
,
size_t
ooblen
);
/* The maximum number of NAND chips in an array */
/* The maximum number of NAND chips in an array */
...
@@ -84,7 +49,7 @@ extern int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_
...
@@ -84,7 +49,7 @@ extern int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_
* Constants for hardware specific CLE/ALE/NCE function
* Constants for hardware specific CLE/ALE/NCE function
*/
*/
/* Select the chip by setting nCE to low */
/* Select the chip by setting nCE to low */
#define NAND_CTL_SETNCE
1
#define NAND_CTL_SETNCE
1
/* Deselect the chip by setting nCE to high */
/* Deselect the chip by setting nCE to high */
#define NAND_CTL_CLRNCE 2
#define NAND_CTL_CLRNCE 2
/* Select the command latch by setting CLE to high */
/* Select the command latch by setting CLE to high */
...
@@ -285,19 +250,19 @@ struct nand_hw_control {
...
@@ -285,19 +250,19 @@ struct nand_hw_control {
* is read from the chip status register
* is read from the chip status register
* @cmdfunc: [REPLACEABLE] hardwarespecific function for writing commands to the chip
* @cmdfunc: [REPLACEABLE] hardwarespecific function for writing commands to the chip
* @waitfunc: [REPLACEABLE] hardwarespecific function for wait on ready
* @waitfunc: [REPLACEABLE] hardwarespecific function for wait on ready
* @calculate_ecc:
[REPLACEABLE] function for ecc calculation or readback from ecc hardware
* @calculate_ecc: [REPLACEABLE] function for ecc calculation or readback from ecc hardware
* @correct_data: [REPLACEABLE] function for ecc correction, matching to ecc generator (sw/hw)
* @correct_data: [REPLACEABLE] function for ecc correction, matching to ecc generator (sw/hw)
* @enable_hwecc: [BOARDSPECIFIC] function to enable (reset) hardware ecc generator. Must only
* @enable_hwecc: [BOARDSPECIFIC] function to enable (reset) hardware ecc generator. Must only
* be provided if a hardware ECC is available
* be provided if a hardware ECC is available
* @erase_cmd: [INTERN] erase command write function, selectable due to AND support
* @erase_cmd: [INTERN] erase command write function, selectable due to AND support
* @scan_bbt: [REPLACEABLE] function to scan bad block table
* @scan_bbt: [REPLACEABLE] function to scan bad block table
* @eccmode: [BOARDSPECIFIC] mode of ecc, see defines
* @eccmode: [BOARDSPECIFIC] mode of ecc, see defines
* @eccsize:
[INTERN] databytes used per ecc-calculation
* @eccsize: [INTERN] databytes used per ecc-calculation
* @eccbytes:
[INTERN] number of ecc bytes per ecc-calculation step
* @eccbytes: [INTERN] number of ecc bytes per ecc-calculation step
* @eccsteps: [INTERN] number of ecc calculation steps per page
* @eccsteps: [INTERN] number of ecc calculation steps per page
* @chip_delay: [BOARDSPECIFIC] chip dependent delay for transfering data from array to read regs (tR)
* @chip_delay: [BOARDSPECIFIC] chip dependent delay for transfering data from array to read regs (tR)
* @wq: [INTERN] wait queue to sleep on if a NAND operation is in progress
* @wq: [INTERN] wait queue to sleep on if a NAND operation is in progress
* @state:
[INTERN] the current state of the NAND device
* @state: [INTERN] the current state of the NAND device
* @page_shift: [INTERN] number of address bits in a page (column address bits)
* @page_shift: [INTERN] number of address bits in a page (column address bits)
* @phys_erase_shift: [INTERN] number of address bits in a physical eraseblock
* @phys_erase_shift: [INTERN] number of address bits in a physical eraseblock
* @bbt_erase_shift: [INTERN] number of address bits in a bbt entry
* @bbt_erase_shift: [INTERN] number of address bits in a bbt entry
...
@@ -327,7 +292,7 @@ struct nand_hw_control {
...
@@ -327,7 +292,7 @@ struct nand_hw_control {
struct
nand_chip
{
struct
nand_chip
{
void
__iomem
*
IO_ADDR_R
;
void
__iomem
*
IO_ADDR_R
;
void
__iomem
*
IO_ADDR_W
;
void
__iomem
*
IO_ADDR_W
;
u_char
(
*
read_byte
)(
struct
mtd_info
*
mtd
);
u_char
(
*
read_byte
)(
struct
mtd_info
*
mtd
);
void
(
*
write_byte
)(
struct
mtd_info
*
mtd
,
u_char
byte
);
void
(
*
write_byte
)(
struct
mtd_info
*
mtd
,
u_char
byte
);
...
@@ -340,12 +305,12 @@ struct nand_chip {
...
@@ -340,12 +305,12 @@ struct nand_chip {
void
(
*
select_chip
)(
struct
mtd_info
*
mtd
,
int
chip
);
void
(
*
select_chip
)(
struct
mtd_info
*
mtd
,
int
chip
);
int
(
*
block_bad
)(
struct
mtd_info
*
mtd
,
loff_t
ofs
,
int
getchip
);
int
(
*
block_bad
)(
struct
mtd_info
*
mtd
,
loff_t
ofs
,
int
getchip
);
int
(
*
block_markbad
)(
struct
mtd_info
*
mtd
,
loff_t
ofs
);
int
(
*
block_markbad
)(
struct
mtd_info
*
mtd
,
loff_t
ofs
);
void
(
*
hwcontrol
)(
struct
mtd_info
*
mtd
,
int
cmd
);
void
(
*
hwcontrol
)(
struct
mtd_info
*
mtd
,
int
cmd
);
int
(
*
dev_ready
)(
struct
mtd_info
*
mtd
);
int
(
*
dev_ready
)(
struct
mtd_info
*
mtd
);
void
(
*
cmdfunc
)(
struct
mtd_info
*
mtd
,
unsigned
command
,
int
column
,
int
page_addr
);
void
(
*
cmdfunc
)(
struct
mtd_info
*
mtd
,
unsigned
command
,
int
column
,
int
page_addr
);
int
(
*
waitfunc
)(
struct
mtd_info
*
mtd
,
struct
nand_chip
*
this
,
int
state
);
int
(
*
waitfunc
)(
struct
mtd_info
*
mtd
,
struct
nand_chip
*
this
,
int
state
);
int
(
*
calculate_ecc
)(
struct
mtd_info
*
mtd
,
const
u_char
*
dat
,
u_char
*
ecc_code
);
int
(
*
calculate_ecc
)(
struct
mtd_info
*
mtd
,
const
u_char
*
dat
,
u_char
*
ecc_code
);
int
(
*
correct_data
)(
struct
mtd_info
*
mtd
,
u_char
*
dat
,
u_char
*
read_ecc
,
u_char
*
calc_ecc
);
int
(
*
correct_data
)(
struct
mtd_info
*
mtd
,
u_char
*
dat
,
u_char
*
read_ecc
,
u_char
*
calc_ecc
);
void
(
*
enable_hwecc
)(
struct
mtd_info
*
mtd
,
int
mode
);
void
(
*
enable_hwecc
)(
struct
mtd_info
*
mtd
,
int
mode
);
void
(
*
erase_cmd
)(
struct
mtd_info
*
mtd
,
int
page
);
void
(
*
erase_cmd
)(
struct
mtd_info
*
mtd
,
int
page
);
int
(
*
scan_bbt
)(
struct
mtd_info
*
mtd
);
int
(
*
scan_bbt
)(
struct
mtd_info
*
mtd
);
...
@@ -353,14 +318,14 @@ struct nand_chip {
...
@@ -353,14 +318,14 @@ struct nand_chip {
int
eccsize
;
int
eccsize
;
int
eccbytes
;
int
eccbytes
;
int
eccsteps
;
int
eccsteps
;
int
chip_delay
;
int
chip_delay
;
wait_queue_head_t
wq
;
wait_queue_head_t
wq
;
nand_state_t
state
;
nand_state_t
state
;
int
page_shift
;
int
page_shift
;
int
phys_erase_shift
;
int
phys_erase_shift
;
int
bbt_erase_shift
;
int
bbt_erase_shift
;
int
chip_shift
;
int
chip_shift
;
u_char
*
data_buf
;
u_char
*
data_buf
;
u_char
*
oob_buf
;
u_char
*
oob_buf
;
int
oobdirty
;
int
oobdirty
;
u_char
*
data_poi
;
u_char
*
data_poi
;
...
@@ -389,19 +354,19 @@ struct nand_chip {
...
@@ -389,19 +354,19 @@ struct nand_chip {
#define NAND_MFR_NATIONAL 0x8f
#define NAND_MFR_NATIONAL 0x8f
#define NAND_MFR_RENESAS 0x07
#define NAND_MFR_RENESAS 0x07
#define NAND_MFR_STMICRO 0x20
#define NAND_MFR_STMICRO 0x20
#define NAND_MFR_HYNIX
0xad
#define NAND_MFR_HYNIX
0xad
/**
/**
* struct nand_flash_dev - NAND Flash Device ID Structure
* struct nand_flash_dev - NAND Flash Device ID Structure
*
*
* @name:
Identify the device type
* @name: Identify the device type
* @id:
device ID code
* @id:
device ID code
* @pagesize:
Pagesize in bytes. Either 256 or 512 or 0
* @pagesize: Pagesize in bytes. Either 256 or 512 or 0
* If the pagesize is 0, then the real pagesize
* If the pagesize is 0, then the real pagesize
* and the eraseize are determined from the
* and the eraseize are determined from the
* extended id bytes in the chip
* extended id bytes in the chip
* @erasesize:
Size of an erase block in the flash device.
* @erasesize: Size of an erase block in the flash device.
* @chipsize:
Total chipsize in Mega Bytes
* @chipsize: Total chipsize in Mega Bytes
* @options: Bitfield to store chip relevant options
* @options: Bitfield to store chip relevant options
*/
*/
struct
nand_flash_dev
{
struct
nand_flash_dev
{
...
@@ -416,7 +381,7 @@ struct nand_flash_dev {
...
@@ -416,7 +381,7 @@ struct nand_flash_dev {
/**
/**
* struct nand_manufacturers - NAND Flash Manufacturer ID Structure
* struct nand_manufacturers - NAND Flash Manufacturer ID Structure
* @name: Manufacturer name
* @name: Manufacturer name
* @id:
manufacturer ID code of device.
* @id:
manufacturer ID code of device.
*/
*/
struct
nand_manufacturers
{
struct
nand_manufacturers
{
int
id
;
int
id
;
...
@@ -456,7 +421,7 @@ struct nand_bbt_descr {
...
@@ -456,7 +421,7 @@ struct nand_bbt_descr {
int
veroffs
;
int
veroffs
;
uint8_t
version
[
NAND_MAX_CHIPS
];
uint8_t
version
[
NAND_MAX_CHIPS
];
int
len
;
int
len
;
int
maxblocks
;
int
maxblocks
;
int
reserved_block_code
;
int
reserved_block_code
;
uint8_t
*
pattern
;
uint8_t
*
pattern
;
};
};
...
@@ -501,8 +466,8 @@ extern int nand_default_bbt (struct mtd_info *mtd);
...
@@ -501,8 +466,8 @@ 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_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_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
,
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
,
size_t
*
retlen
,
u_char
*
buf
,
u_char
*
oob_buf
,
struct
nand_oobinfo
*
oobsel
,
int
flags
);
struct
nand_oobinfo
*
oobsel
,
int
flags
);
/*
/*
* Constants for oob configuration
* Constants for oob configuration
...
@@ -526,7 +491,7 @@ struct platform_nand_chip {
...
@@ -526,7 +491,7 @@ struct platform_nand_chip {
int
chip_offset
;
int
chip_offset
;
int
nr_partitions
;
int
nr_partitions
;
struct
mtd_partition
*
partitions
;
struct
mtd_partition
*
partitions
;
int
chip_delay
;
int
chip_delay
;
unsigned
int
options
;
unsigned
int
options
;
void
*
priv
;
void
*
priv
;
};
};
...
@@ -542,8 +507,8 @@ struct platform_nand_chip {
...
@@ -542,8 +507,8 @@ struct platform_nand_chip {
* All fields are optional and depend on the hardware driver requirements
* All fields are optional and depend on the hardware driver requirements
*/
*/
struct
platform_nand_ctrl
{
struct
platform_nand_ctrl
{
void
(
*
hwcontrol
)(
struct
mtd_info
*
mtd
,
int
cmd
);
void
(
*
hwcontrol
)(
struct
mtd_info
*
mtd
,
int
cmd
);
int
(
*
dev_ready
)(
struct
mtd_info
*
mtd
);
int
(
*
dev_ready
)(
struct
mtd_info
*
mtd
);
void
(
*
select_chip
)(
struct
mtd_info
*
mtd
,
int
chip
);
void
(
*
select_chip
)(
struct
mtd_info
*
mtd
,
int
chip
);
void
*
priv
;
void
*
priv
;
};
};
...
...
Write
Preview
Markdown
is supported
0%
Try again
or
attach a new file
Attach a file
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment