sergiotarxz/nuttx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Add driver for Atmel AT45DB161 FLASH

Browse Source 
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 3d6729aa14
commit 1cd03460da
3 changed files with 58 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
configs/README.txt
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

20
configs/ea3131/pgnsh/defconfig
View File

@ -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

62
configs/ea3131/src/up_fillpage.c
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.