Create an MTD driver for SPIFI
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4951 42af7a65-404d-4744-a932-0658087f49c3
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patacongo
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@ -92,24 +92,24 @@
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* have the same relationship as in the Control register)
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*/
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#define SPIFI_MODE3 (1 << 0)
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#define SPIFI_MODE0 (0)
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#define SPIFI_MINIMAL (1 << 1)
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#define SPIFI_MAXIMAL (0)
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#define SPIFI_FORCE_ERASE (1 << 2)
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#define SPIFI_ERASE_NOT_REQD (1 << 3)
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#define SPIFI_CALLER_ERASE (1 << 3)
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#define SPIFI_ERASE_AS_REQD (0)
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#define SPIFI_VERIFY_PROG (1 << 4)
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#define SPIFI_VERIFY_ERASE (1 << 5)
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#define SPIFI_NO_VERIFY (0)
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#define SPIFI_FULLCLK (1 << 6)
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#define SPIFI_HALFCLK (0)
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#define SPIFI_RCVCLK (1 << 7)
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#define SPIFI_INTCLK (0)
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#define SPIFI_DUAL (1 << 8)
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#define SPIFI_CALLER_PROT (1 << 9)
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#define SPIFI_DRIVER_PROT (0)
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#define S_MODE3 (1 << 0)
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#define S_MODE0 (0)
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#define S_MINIMAL (1 << 1)
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#define S_MAXIMAL (0)
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#define S_FORCE_ERASE (1 << 2)
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#define S_ERASE_NOT_REQD (1 << 3)
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#define S_CALLER_ERASE (1 << 3)
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#define S_ERASE_AS_REQD (0)
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#define S_VERIFY_PROG (1 << 4)
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#define S_VERIFY_ERASE (1 << 5)
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#define S_NO_VERIFY (0)
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#define S_FULLCLK (1 << 6)
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#define S_HALFCLK (0)
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#define S_RCVCLK (1 << 7)
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#define S_INTCLK (0)
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#define S_DUAL (1 << 8)
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#define S_CALLER_PROT (1 << 9)
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#define S_DRIVER_PROT (0)
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/* The length of a standard program command is 256 on all devices */
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@ -178,9 +178,9 @@ struct spifi_dev_s
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struct spifi_operands_s
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{
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char *dest;
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uint8_t *dest;
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uint32_t length;
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char *scratch;
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uint8_t *scratch;
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int32_t protect;
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uint32_t options;
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};
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@ -191,7 +191,7 @@ struct spifi_driver_s
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{
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int32_t (*spifi_init)(struct spifi_dev_s *dev, uint32_t cshigh,
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uint32_t options, uint32_t mhz);
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int32_t (*spifi_program)(struct spifi_dev_s *dev, char *source,
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int32_t (*spifi_program)(struct spifi_dev_s *dev, const uint8_t *source,
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struct spifi_operands_s *opers);
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int32_t (*spifi_erase)(struct spifi_dev_s *dev,
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struct spifi_operands_s *opers);
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@ -206,16 +206,16 @@ struct spifi_driver_s
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int32_t (*checkAd)(struct spifi_dev_s *dev,
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struct spifi_operands_s *opers);
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int32_t (*setProt)(struct spifi_dev_s *dev,
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struct spifi_operands_s *opers, char *change, char *saveprot);
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int32_t (*check_block) (struct spifi_dev_s *dev, char *source,
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struct spifi_operands_s *opers, uint8_t *change, uint8_t *saveprot);
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int32_t (*check_block) (struct spifi_dev_s *dev, uint8_t *source,
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struct spifi_operands_s *opers, uint32_t check_program);
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int32_t (*send_erase_cmd)(struct spifi_dev_s *dev, uint8_t op,
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uint32_t addr);
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uint32_t (*ck_erase) (struct spifi_dev_s *dev, uint32_t *addr,
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uint32_t length);
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int32_t (*prog_block)(struct spifi_dev_s *dev, char *source,
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int32_t (*prog_block)(struct spifi_dev_s *dev, uint8_t *source,
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struct spifi_operands_s *opers, uint32_t *left_in_page);
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uint32_t (*ck_prog)(struct spifi_dev_s *dev, char *source, char *dest,
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uint32_t (*ck_prog)(struct spifi_dev_s *dev, uint8_t *source, uint8_t *dest,
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uint32_t length);
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/* Low level functions */
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File diff suppressed because it is too large
Load Diff
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@ -41,6 +41,7 @@
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****************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/mtd.h>
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#include "chip.h"
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#include "chip/lpc43_spifi.h"
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@ -50,6 +51,33 @@
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* SPIFI Configuration ******************************************************/
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/* This logic supports some special options that can be used to create an
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* MTD device on the SPIFI FLASH.
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*
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* CONFIG_LPC43_SPIFI - Enable SPIFI support
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*
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* SPIFI device geometry:
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*
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* CONFIG_SPIFI_OFFSET - Offset the beginning of the block driver this many
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* bytes into the device address space. This offset must be an exact
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* multiple of the erase block size (CONFIG_SPIFI_BLKSIZE). Default 0.
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* CONFIG_SPIFI_BLKSIZE - The size of one device erase block. If not defined
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* then the driver will try to determine the correct erase block size by
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* examining that data returned from spifi_initialize (which sometimes
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* seems bad).
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*
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* Other SPIFI options
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*
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* CONFIG_SPIFI_SECTOR512 - If defined, then the driver will report a more
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* FAT friendly 512 byte sector size and will manage the read-modify-write
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* operations on the larger erase block.
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* CONFIG_SPIFI_READONLY - Define to support only read-only operations.
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*/
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#ifndef CONFIG_SPIFI_OFFSET
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# define CONFIG_SPIFI_OFFSET 0
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#endif
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/****************************************************************************
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* Private Data
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@ -63,21 +91,26 @@
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Function: lpc43_spifi_initialize
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* Name: lpc43_spifi_initialize
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*
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* Description:
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* Initialize the SPIFI interface per settings in the board.h file
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* Create an initialized MTD device instance for the SPIFI device. MTD
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* devices are not registered in the file system, but are created as
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* instances that can be bound to other functions (such as a block or
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* character driver front end).
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*
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* SPIFI interface clocking is configured per settings in the board.h file.
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* Zero is returned on success; on failure, a negated errno value is
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* returned.
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* Returned value:
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* One success, a reference to the initialized MTD device instance is
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* returned; NULL is returned on any failure.
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*
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****************************************************************************/
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int lpc43_spifi_initialize(void);
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FAR struct mtd_dev_s *lpc43_spifi_initialize(void);
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#endif /* CONFIG_LPC43_SPIFI */
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#endif /* __ARCH_ARM_SRC_LPC43XX_LPC43_SPIFI_H */
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