view packages/devs/flash/spi/m25pxx/current/cdl/flash_m25pxx.cdl @ 2768:49a028abd944

* cdl/m25pxx.cdl: * include/m25pxx.h: * src/m25pxx.c: * test/m25pxx_test.c: New package - SPI flash driver for M25Pxx devices and compatibles. Driver contributed by Chris Holgate. Includes a soak test which is not part of the default tests as it requires a specific configuration to be used - see test/m25pxx_test.c for details.
author nickg
date Thu, 05 Feb 2009 17:25:24 +0000
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##=============================================================================
##
##      flash_m25pxx.cdl
##
##      M25Pxx SPI flash driver configuration options.
##
##=============================================================================
## ####ECOSGPLCOPYRIGHTBEGIN####                                            
## -------------------------------------------                              
## This file is part of eCos, the Embedded Configurable Operating System.   
## Copyright (C) 2008, 2009 Free Software Foundation, Inc.
##
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## for more details.                                                        
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##
## As a special exception, if other files instantiate templates or use      
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## General Public License v2.                                               
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##=============================================================================
#######DESCRIPTIONBEGIN####
##
## Author(s):   Chris Holgate
## Date:        2008-12-22
## Purpose:     Configure M25Pxx SPI flash driver.
##
######DESCRIPTIONEND####
##
##=============================================================================

cdl_package CYGPKG_DEVS_FLASH_SPI_M25PXX {
    display	"M25PXX flash memory support"
    parent	CYGPKG_IO_FLASH
    active_if	CYGPKG_IO_FLASH CYGPKG_IO_SPI
    implements	CYGHWR_IO_FLASH_DEVICE
    implements  CYGHWR_IO_FLASH_INDIRECT_READS 
    include_dir	cyg/io
    compile	m25pxx.c

    description "
        Flash memory support for Numonyx M25Pxx SPI flash devices and 
        compatibles.  This driver implements the V2 flash driver API"

cdl_option CYGNUM_DEVS_FLASH_SPI_M25PXX_READ_BLOCK_SIZE {
    display       "Maximum read block size"
    description   "
        In theory it is possible to read back the entire flash contents using
        a single SPI transaction.  However, some SPI bus drivers have a maximum 
        transaction size - for example transactions may be limited to the 
        length of a DMA bounce buffer.  Setting this option to a non-zero value 
        specifies the maximum SPI bus transfer size which will be used when 
        reading back data.  Read requests for areas larger than this block size 
        will automatically be split into a series of smaller SPI bus transactions.
    "
    flavor        data 
    default_value 0
}
}