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Add driver for Atmel AT45DB161 FLASH

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2940 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2010-09-12 02:22:13 +00:00
parent f7bc561d3b
commit 8a5df19e8b
9 changed files with 868 additions and 49 deletions
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ChangeLog
+2
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@@ -1279,3 +1279,5 @@
* sched/sem_wait.c and sem_waitirq.c - Eliminate a race condition
that can occur when a semaphore wait is interrupt by a signal.
(see email thread: http://tech.groups.yahoo.com/group/nuttx/message/530)
* drivers/mtd/at45db.c - Add a driver for the Atmel AT45DB161D 4Mbit
SPI FLASH part (untested on initial check-in).
Documentation/NuttX.html
+3 -1
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@@ -8,7 +8,7 @@
<tr align="center" bgcolor="#e4e4e4">
<td>
<h1><big><font color="#3c34ec"><i>NuttX RTOS</i></font></big></h1>
<p>Last Updated: September 9, 2010</p>
<p>Last Updated: September 11, 2010</p>
</td>
</tr>
</table>
@@ -1974,6 +1974,8 @@ nuttx-5.11 2010-xx-xx Gregory Nutt &lt;spudmonkey@racsa.co.cr&gt;
* sched/sem_wait.c and sem_waitirq.c - Eliminate a race condition
that can occur when a semaphore wait is interrupt by a signal.
(see email thread: http://tech.groups.yahoo.com/group/nuttx/message/530)
* drivers/mtd/at45db.c - Add a driver for the Atmel AT45DB161D 4Mbit
SPI FLASH part (untested on initial check-in).
pascal-2.1 2010-xx-xx Gregory Nutt &lt;spudmonkey@racsa.co.cr&gt;
Documentation/NuttxPortingGuide.html
+10 -5
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@@ -12,7 +12,7 @@
<h1><big><font color="#3c34ec">
<i>NuttX RTOS Porting Guide</i>
</font></big></h1>
<p>Last Updated: September 10, 2010</p>
<p>Last Updated: September 11, 2010</p>
</td>
</tr>
</table>
@@ -2599,13 +2599,18 @@ build
If this is selected, then the MTD interface to the M25Px device will be used to support paging.
</li>
<li>
<code>CONFIG_PAGING_M25PX_BINOFFSET</code>:
If CONFIG_PAGING_M25PX is defined then CONFIG_PAGING_M25PX_BINOFFSET will be used to specify the offset in bytes into the FLASH device where the NuttX binary image is located.
<code>CONFIG_PAGING_AT45DB</code>:
Use the at45db.c FLASH driver.
If this is selected, then the MTD interface to the Atmel AT45DB device will be used to support paging.
</li>
<li>
<code>CONFIG_PAGING_BINOFFSET</code>:
If CONFIG_PAGING_M25PX or CONFIG_PAGING_AT45DB is defined then CONFIG_PAGING_BINOFFSET will be used to specify the offset in bytes into the FLASH device where the NuttX binary image is located.
Default: 0
</li>
<li>
<code>CONFIG_PAGING_M25PX_SPIPORT</code>:
If CONFIG_PAGING_M25PX is defined and the device has multiple SPI busses (ports), then this configuration should be set to indicate which SPI port the M25Px device is connected.
<code>CONFIG_PAGING_SPIPORT</code>:
If CONFIG_PAGING_M25PX or CONFIG_PAGING_AT45DB is defined and the device has multiple SPI busses (ports), then this configuration should be set to indicate which SPI port the device is connected.
Default: 0
</li>
</ul>
configs/README.txt
+9 -6
View File
@@ -423,14 +423,17 @@ defconfig -- This is a configuration file similar to the Linux
CONFIG_PAGING_M25PX - Use the m25px.c FLASH driver. If this is selected,
then the MTD interface to the M25Px device will be used to support
paging.
CONFIG_PAGING_M25PX_BINOFFSET - If CONFIG_PAGING_M25PX is defined then
CONFIG_PAGING_M25PX_BINOFFSET will be used to specify the offset
CONFIG_PAGING_AT45DB - Use the at45db.c FLASH driver. If this is selected,
then the MTD interface to the Atmel AT45DB device will be used to support
paging.
CONFIG_PAGING_BINOFFSET - If CONFIG_PAGING_M25PX or is CONFIG_PAGING_AT45DB
defined then CONFIG_PAGING_BINOFFSET will be used to specify the offset
in bytes into the FLASH device where the NuttX binary image is located.
Default: 0
CONFIG_PAGING_M25PX_SPIPORT - If CONFIG_PAGING_M25PX is defined and
the device has multiple SPI busses (ports), then this configuration
should be set to indicate which SPI port the M25Px device is connected.
Default: 0
CONFIG_PAGING_SPIPORT - If CONFIG_PAGING_M25PX CONFIG_PAGING_AT45DB is
defined and the device has multiple SPI busses (ports), then this
configuration should be set to indicate which SPI port the device is
connected. Default: 0
The following can be used to disable categories of APIs supported
by the OS. If the compiler supports weak functions, then it
configs/ea3131/pgnsh/defconfig
+12 -8
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@@ -427,14 +427,17 @@ CONFIG_SIG_SIGWORK=4
# CONFIG_PAGING_M25PX - Use the m25px.c FLASH driver. If this is selected,
# then the MTD interface to the M25Px device will be used to support
# paging.
# CONFIG_PAGING_M25PX_BINOFFSET - If CONFIG_PAGING_M25PX is defined then
# CONFIG_PAGING_M25PX_BINOFFSET will be used to specify the offset
# CONFIG_PAGING_AT45DB - Use the at45db.c FLASH driver. If this is selected,
# then the MTD interface to the Atmel AT45DB device will be used to support
# paging.
# CONFIG_PAGING_BINOFFSET - If CONFIG_PAGING_M25PX or CONFIG_PAGING_AT45DB
# is defined then CONFIG_PAGING_BINOFFSET will be used to specify the offset
# in bytes into the FLASH device where the NuttX binary image is located.
# Default: 0
# CONFIG_PAGING_M25PX_SPIPORT - If CONFIG_PAGING_M25PX is defined and
# the device has multiple SPI busses (ports), then this configuration
# should be set to indicate which SPI port the M25Px device is connected.
# Default: 0
# CONFIG_PAGING_SPIPORT - If CONFIG_PAGING_M25PX or CONFIG_PAGING_AT45DB
# is defined and the device has multiple SPI busses (ports), then this
# configuration should be set to indicate which SPI port the device is
# connected. Default: 0
#
CONFIG_PAGING=y
CONFIG_PAGING_PAGESIZE=1024
@@ -457,8 +460,9 @@ CONFIG_PAGING_MOUNTPT="/mnt/pgsrc"
CONFIG_PAGING_MINOR=0
CONFIG_PAGING_SDSLOT=0
CONFIG_PAGING_M25PX=n
CONFIG_PAGING_M25PX_BINOFFSET=0
CONFIG_PAGING_M25PX_SPIPORT=0
CONFIG_PAGING_AT45DB=n
CONFIG_PAGING_BINOFFSET=0
CONFIG_PAGING_SPIPORT=0
#
# The following can be used to disable categories of
configs/ea3131/src/up_fillpage.c
+37 -25
View File
@@ -62,7 +62,7 @@
# endif
#endif
#ifdef CONFIG_PAGING_M25PX
#if defined(CONFIG_PAGING_M25PX) || defined(CONFIG_PAGING_AT45DB)
# include <sys/ioctl.h>
# include <nuttx/ioctl.h>
# include <nuttx/spi.h>
@@ -94,10 +94,18 @@
/* Sanity check: We can only perform paging using a single source device */
#if defined(CONFIG_PAGING_M25PX) && defined(CONFIG_PAGING_AT45DB)
# error "Both CONFIG_PAGING_M25PX and CONFIG_PAGING_AT45DB are defined"
# undef CONFIG_PAGING_M25PX
#endif
#if defined(CONFIG_PAGING_BINPATH) && defined(CONFIG_PAGING_M25PX)
# error "Both CONFIG_PAGING_BINPATH and CONFIG_PAGING_M25PX are defined"
# undef CONFIG_PAGING_BINPATH
#endif
#if defined(CONFIG_PAGING_BINPATH) && defined(CONFIG_PAGING_AT45DB)
# error "Both CONFIG_PAGING_BINPATH and CONFIG_PAGING_AT45DB are defined"
# undef CONFIG_PAGING_BINPATH
#endif
/* Are we accessing the page source data through a file path? */
@@ -140,7 +148,7 @@
/* Are we accessing the page source data through the M25P* MTD device? */
#ifdef CONFIG_PAGING_M25PX
#if defined(CONFIG_PAGING_M25PX) || defined(CONFIG_PAGING_AT45DB)
/* Verify that SPI support is enabld */
@@ -152,14 +160,14 @@
* of the NuttX binary image.
*/
# ifndef CONFIG_PAGING_M25PX_BINOFFSET
# define CONFIG_PAGING_M25PX_BINOFFSET 0
# ifndef CONFIG_PAGING_BINOFFSET
# define CONFIG_PAGING_BINOFFSET 0
# endif
/* Make sure that some value is defined for the SPI port number */
# ifndef CONFIG_PAGING_M25PX_SPIPORT
# define CONFIG_PAGING_M25PX_SPIPORT 0
# ifndef CONFIG_PAGING_SPIPORT
# define CONFIG_PAGING_SPIPORT 0
# endif
#endif
@@ -179,7 +187,7 @@ struct pg_source_s
/* State structured needd to support paging through the M25P* MTD interface. */
#ifdef CONFIG_PAGING_M25PX
#if defined(CONFIG_PAGING_M25PX) || defined(CONFIG_PAGING_AT45DB)
struct pg_source_s
{
/* If interrupts or DMA are used, then we will have to defer initialization */
@@ -204,7 +212,7 @@ struct pg_source_s
* Private Data
****************************************************************************/
#if defined(CONFIG_PAGING_BINPATH) || defined(CONFIG_PAGING_M25PX)
#if defined(CONFIG_PAGING_BINPATH) || defined(CONFIG_PAGING_M25PX) || defined(CONFIG_PAGING_AT45DB)
static struct pg_source_s g_pgsrc;
#endif
@@ -277,7 +285,7 @@ static inline void lpc313x_initsrc(void)
}
}
#elif defined(CONFIG_PAGING_M25PX)
#elif defined(CONFIG_PAGING_M25PX) || defined(CONFIG_PAGING_AT45DB)
static inline void lpc313x_initsrc(void)
{
#ifdef CONFIG_DEBUG
@@ -295,12 +303,16 @@ static inline void lpc313x_initsrc(void)
/* First get an instance of the SPI device interface */
FAR struct spi_dev_s *spi = up_spiinitialize(CONFIG_PAGING_M25PX_SPIPORT);
FAR struct spi_dev_s *spi = up_spiinitialize(CONFIG_PAGING_SPIPORT);
DEBUGASSERT(spi != NULL);
/* Then bind the SPI interface to the M25Px MTD driver */
/* Then bind the SPI interface to the MTD driver */
#ifdef CONFIG_PAGING_M25PX
g_pgsrc.mtd = m25p_initialize(spi);
#else
g_pgsrc.mtd = at45db_initialize(spi);
#endif
DEBUGASSERT(g_pgsrc.mtd != NULL);
/* Verify that we can use the device */
@@ -315,7 +327,7 @@ static inline void lpc313x_initsrc(void)
DEBUGASSERT(ret >= 0);
capacity = g_pgsrc.geo.erasesize*g_pgsrc.geo.neraseblocks;
pgllvdbg("capacity: %d\n", capacity);
DEBUGASSERT(capacity >= (CONFIG_PAGING_M25PX_BINOFFSET + PG_TEXT_VSIZE));
DEBUGASSERT(capacity >= (CONFIG_PAGING_BINOFFSET + PG_TEXT_VSIZE));
#endif
#if defined(CONFIG_LPC313x_SPI_INTERRUPTS) || defined(CONFIG_LPC313x_SPI_DMA)
@@ -394,7 +406,7 @@ int up_fillpage(FAR _TCB *tcb, FAR void *vpage)
ssize_t nbytes;
off_t offset;
off_t pos;
#elif defined(CONFIG_PAGING_M25PX)
#elif defined(CONFIG_PAGING_M25PX) || defined(CONFIG_PAGING_AT45DB)
ssize_t nbytes;
off_t offset;
#endif
@@ -432,11 +444,11 @@ int up_fillpage(FAR _TCB *tcb, FAR void *vpage)
DEBUGASSERT(nbytes == PAGESIZE);
return OK;
#elif defined(CONFIG_PAGING_M25PX) /* !CONFIG_PAGING_BINPATH */
#elif defined(CONFIG_PAGING_M25PX) || defined(CONFIG_PAGING_AT45DB) /* !CONFIG_PAGING_BINPATH */
/* If CONFIG_PAGING_M25PX is defined, use the m25px.c FLASH driver. If this
* is selected, then the MTD interface to the M25Px device will be used to
* support paging.
/* If CONFIG_PAGING_M25PX or CONFIG_PAGING_AT45DB is defined, use the
* SPI corresponding FLASH driver. If either are selected, then the
* MTD interface to the device will be used to support paging.
*
* If the driver is configured to use interrupts or DMA, then it must be
* initialized in this context.
@@ -450,7 +462,7 @@ int up_fillpage(FAR _TCB *tcb, FAR void *vpage)
* virtual address. File offset 0 corresponds to PG_LOCKED_VBASE.
*/
offset = (off_t)tcb->xcp.far - PG_LOCKED_VBASE + CONFIG_PAGING_M25PX_BINOFFSET;
offset = (off_t)tcb->xcp.far - PG_LOCKED_VBASE + CONFIG_PAGING_BINOFFSET;
/* Read the page at the correct offset into the SPI FLASH device */
@@ -458,12 +470,12 @@ int up_fillpage(FAR _TCB *tcb, FAR void *vpage)
DEBUGASSERT(nbytes == PAGESIZE);
return OK;
#else /* !CONFIG_PAGING_BINPATH && !CONFIG_PAGING_M25PX */
#else /* !CONFIG_PAGING_BINPATH && !CONFIG_PAGING_M25PX && !CONFIG_PAGING_AT45DB */
# warning "Not implemented"
return -ENOSYS;
#endif /* !CONFIG_PAGING_BINPATH && !CONFIG_PAGING_M25PX */
#endif /* !CONFIG_PAGING_BINPATH && !CONFIG_PAGING_M25PX && !CONFIG_PAGING_AT45DB */
}
#else /* CONFIG_PAGING_BLOCKINGFILL */
@@ -477,7 +489,7 @@ int up_fillpage(FAR _TCB *tcb, FAR void *vpage, up_pgcallback_t pg_callback)
#if defined(CONFIG_PAGING_BINPATH)
# error "File system-based paging must always be implemented with blocking calls"
#elif defined(CONFIG_PAGING_M25PX)
#elif defined(CONFIG_PAGING_M25PX) || defined(CONFIG_PAGING_AT45DB)
# error "SPI FLASH paging must always be implemented with blocking calls"
#else
# warning "Not implemented"
@@ -521,11 +533,11 @@ void weak_function lpc313x_pginitialize(void)
* time that up_fillpage() is called.
*/
#elif defined(CONFIG_PAGING_M25PX)
#elif defined(CONFIG_PAGING_M25PX) || defined(CONFIG_PAGING_AT45DB)
/* If CONFIG_PAGING_M25PX is defined, use the m25px.c FLASH driver. If this
* is selected, then the MTD interface to the M25Px device will be used to
* support paging.
/* If CONFIG_PAGING_M25PX or CONFIG_PAGING_AT45DB is defined, use the corresponding
* FLASH driver. If either is selected, then the MTD interface to the device
* will be used to support paging.
*
* If the driver is not configured to use interrupts or DMA, then it is
* probably safe to initialize it in this context.
drivers/mtd/Make.defs
+2 -2
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@@ -1,7 +1,7 @@
############################################################################
# drivers/mtd/Make.defs
#
# Copyright (C) 2009 Gregory Nutt. All rights reserved.
# Copyright (C) 2009-2010 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <spudmonkey@racsa.co.cr>
#
# Redistribution and use in source and binary forms, with or without
@@ -34,5 +34,5 @@
############################################################################
MTD_ASRCS =
MTD_CSRCS = ftl.c m25px.c
MTD_CSRCS = ftl.c m25px.c at45db.c
drivers/mtd/at45db.c
+779
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File diff suppressed because it is too large Load Diff
include/nuttx/mtd.h
+13 -1
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@@ -2,7 +2,7 @@
* include/nuttx/mtd.h
* Memory Technology Device (MTD) interface
*
* Copyright (C) 2009 Gregory Nutt. All rights reserved.
* Copyright (C) 2009-2010 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
@@ -154,6 +154,18 @@ EXTERN int ftl_initialize(int minor, uint8_t *buffer, FAR struct mtd_dev_s *mtd)
EXTERN FAR struct mtd_dev_s *m25p_initialize(FAR struct spi_dev_s *dev);
/************************************************************************************
* Name: at45db_initialize
*
* Description:
* Create an initialize MTD device instance. MTD devices are not registered
* in the file system, but are created as instances that can be bound to
* other functions (such as a block or character driver front end).
*
************************************************************************************/
EXTERN FAR struct mtd_dev_s *at45db_initialize(FAR struct spi_dev_s *dev);
#undef EXTERN
#ifdef __cplusplus
}