diff options
| -rw-r--r-- | nuttx/drivers/mtd/ramtron.c | 26 | ||||
| -rw-r--r-- | nuttx/include/nuttx/fs/ioctl.h | 10 | ||||
| -rw-r--r-- | nuttx/include/nuttx/mtd/mtd.h | 14 |
3 files changed, 32 insertions, 18 deletions
diff --git a/nuttx/drivers/mtd/ramtron.c b/nuttx/drivers/mtd/ramtron.c index 6f287b74e..03e2b2b35 100644 --- a/nuttx/drivers/mtd/ramtron.c +++ b/nuttx/drivers/mtd/ramtron.c @@ -41,11 +41,11 @@ * must be enabled with the CONFIG_RAMTRON_FRAM_NON_JEDEC=y * * NOTE: - * - frequency is fixed to desired max by RAMTRON_INIT_CLK_MAX - * if new devices with different speed arrive, then SETFREQUENCY() - * needs to handle freq changes and INIT_CLK_MAX must be reduced - * to fit all devices. Note that STM32_SPI driver is prone to - * too high freq. parameters and limit it within physical constraints. + * - frequency is fixed to desired max by RAMTRON_INIT_CLK_MAX if new devices with + * different speed arrive, use the table to handle freq change and to fit all + * devices. Note that STM32_SPI driver is prone to too high freq. parameters and + * limit it within physical constraints. The speed may be changed through ioctl + * MTDIOC_SETSPEED * * TODO: * - add support for sleep @@ -176,7 +176,7 @@ static const struct ramtron_parts_s g_ramtron_parts[] = 0x00, /* id2 */ 16L*1024L, /* size */ 2, /* addr_len */ - 40000000 /* speed */ + RAMTRON_INIT_CLK_MAX /* speed */ }, { "FM25V02", /* name */ @@ -184,7 +184,7 @@ static const struct ramtron_parts_s g_ramtron_parts[] = 0x00, /* id2 */ 32L*1024L, /* size */ 2, /* addr_len */ - 40000000 /* speed */ + RAMTRON_INIT_CLK_MAX /* speed */ }, { "FM25VN02", /* name */ @@ -192,7 +192,7 @@ static const struct ramtron_parts_s g_ramtron_parts[] = 0x01, /* id2 */ 32L*1024L, /* size */ 2, /* addr_len */ - 40000000 /* speed */ + RAMTRON_INIT_CLK_MAX /* speed */ }, { "FM25V05", /* name */ @@ -200,7 +200,7 @@ static const struct ramtron_parts_s g_ramtron_parts[] = 0x00, /* id2 */ 64L*1024L, /* size */ 2, /* addr_len */ - 40000000 /* speed */ + RAMTRON_INIT_CLK_MAX /* speed */ }, { "FM25VN05", /* name */ @@ -208,7 +208,7 @@ static const struct ramtron_parts_s g_ramtron_parts[] = 0x01, /* id2 */ 64L*1024L, /* size */ 2, /* addr_len */ - 40000000 /* speed */ + RAMTRON_INIT_CLK_MAX /* speed */ }, { "FM25V10", /* name */ @@ -216,7 +216,7 @@ static const struct ramtron_parts_s g_ramtron_parts[] = 0x00, /* id2 */ 128L*1024L, /* size */ 3, /* addr_len */ - 40000000 /* speed */ + RAMTRON_INIT_CLK_MAX /* speed */ }, { "FM25VN10", /* name */ @@ -224,7 +224,7 @@ static const struct ramtron_parts_s g_ramtron_parts[] = 0x01, /* id2 */ 128L*1024L, /* size */ 3, /* addr_len */ - 40000000 /* speed */ + RAMTRON_INIT_CLK_MAX /* speed */ }, { "MB85RS1MT", /* name */ @@ -241,7 +241,7 @@ static const struct ramtron_parts_s g_ramtron_parts[] = 0xff, /* id2 */ 256L*1024L, /* size */ 3, /* addr_len */ - 40000000 /* speed */ + RAMTRON_INIT_CLK_MAX /* speed */ }, { NULL, /* name */ diff --git a/nuttx/include/nuttx/fs/ioctl.h b/nuttx/include/nuttx/fs/ioctl.h index 43a88c673..fc904495f 100644 --- a/nuttx/include/nuttx/fs/ioctl.h +++ b/nuttx/include/nuttx/fs/ioctl.h @@ -47,7 +47,7 @@ ****************************************************************************/ /* General ioctl definitions ************************************************/ /* Each NuttX ioctl commands are uint16_t's consisting of an 8-bit type - * identifier and an 8-bit command number. All comman type identifiers are + * identifier and an 8-bit command number. All command type identifiers are * defined below: */ @@ -102,7 +102,7 @@ #define _FIOC(nr) _IOC(_FIOCBASE,nr) #define FIOC_MMAP _FIOC(0x0001) /* IN: Location to return address (void **) - * OUT: If media is directly acccesible, + * OUT: If media is directly accessible, * return (void*) base address * of file */ @@ -152,7 +152,7 @@ #define BIOC_XIPBASE _BIOC(0x0001) /* Perform mapping to random access memory. * IN: Pointer to pointer to void in * which to received the XIP base. - * OUT: If media is directly acccesible, + * OUT: If media is directly accessible, * return (void*) base address * of device memory */ #define BIOC_PROBE _BIOC(0x0002) /* Re-probe and interface; check for media @@ -189,7 +189,7 @@ * OUT: Number of bytes read or error */ #define BIOC_WRITESECT _BIOC(0x0009) /* Write to data to a logical sector * IN: Pointer to sector write data (the - * logical secor number and write + * logical sector number and write * buffer address * OUT: None (ioctl return value provides * success/failure indication). */ @@ -219,7 +219,7 @@ * with data for the MTD */ #define MTDIOC_XIPBASE _MTDIOC(0x0002) /* IN: Pointer to pointer to void in * which to received the XIP base. - * OUT: If media is directly acccesible, + * OUT: If media is directly accessible, * return (void*) base address * of device memory */ #define MTDIOC_BULKERASE _MTDIOC(0x0003) /* IN: None diff --git a/nuttx/include/nuttx/mtd/mtd.h b/nuttx/include/nuttx/mtd/mtd.h index eeb6013c2..4db86a057 100644 --- a/nuttx/include/nuttx/mtd/mtd.h +++ b/nuttx/include/nuttx/mtd/mtd.h @@ -370,6 +370,20 @@ FAR struct mtd_dev_s *m25p_initialize(FAR struct spi_dev_s *dev); FAR struct mtd_dev_s *rammtd_initialize(FAR uint8_t *start, size_t size); /**************************************************************************** + * Name: ramtron_initialize + * + * Description: + * Create and initialize a Ramtron MTD device instance. + * + * Input Parameters: + * start - Address of the beginning of the allocated RAM regions. + * size - The size in bytes of the allocated RAM region. + * + ****************************************************************************/ + +FAR struct mtd_dev_s *ramtron_initialize(FAR struct spi_dev_s *dev); + +/**************************************************************************** * Name: sst25_initialize * * Description: |