diff options
Diffstat (limited to 'ecos/packages/devs/flash/freescale/dspi/sst25xx/current/src/sst25xx_freescale_dspi.c')
| -rw-r--r-- | ecos/packages/devs/flash/freescale/dspi/sst25xx/current/src/sst25xx_freescale_dspi.c | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/ecos/packages/devs/flash/freescale/dspi/sst25xx/current/src/sst25xx_freescale_dspi.c b/ecos/packages/devs/flash/freescale/dspi/sst25xx/current/src/sst25xx_freescale_dspi.c new file mode 100644 index 0000000..0287224 --- /dev/null +++ b/ecos/packages/devs/flash/freescale/dspi/sst25xx/current/src/sst25xx_freescale_dspi.c @@ -0,0 +1,99 @@ +//========================================================================== +// +// sst25xx_freescale_dspi.c +// +// SST25XX FLASH device over Freescale DSPI +// +//========================================================================== +// ####ECOSGPLCOPYRIGHTBEGIN#### +// ------------------------------------------- +// This file is part of eCos, the Embedded Configurable Operating System. +// Copyright (C) 2008 Free Software Foundation, Inc. +// +// eCos is free software; you can redistribute it and/or modify it under +// the terms of the GNU General Public License as published by the Free +// Software Foundation; either version 2 or (at your option) any later +// version. +// +// eCos is distributed in the hope that it will be useful, but WITHOUT +// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +// for more details. +// +// You should have received a copy of the GNU General Public License +// along with eCos; if not, write to the Free Software Foundation, Inc., +// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. +// +// As a special exception, if other files instantiate templates or use +// macros or inline functions from this file, or you compile this file +// and link it with other works to produce a work based on this file, +// this file does not by itself cause the resulting work to be covered by +// the GNU General Public License. However the source code for this file +// must still be made available in accordance with section (3) of the GNU +// General Public License v2. +// +// This exception does not invalidate any other reasons why a work based +// on this file might be covered by the GNU General Public License. +// ------------------------------------------- +// ####ECOSGPLCOPYRIGHTEND#### +//========================================================================== +//#####DESCRIPTIONBEGIN#### +// +// Author(s): ilijak +// Contributor(s): +// Date: 2011-12-14 +// Description: +// +//####DESCRIPTIONEND#### +// +//========================================================================== + + +#include <pkgconf/system.h> +#if defined(CYGPKG_IO_SPI) && defined(CYGPKG_DEVS_FLASH_SPI_SST25XX) +// ------------------------------------------------------------------------ +// There is an SST25XX serial flash on the SPI bus +//#include <cyg/infra/cyg_type.h> +#include <cyg/io/spi.h> +#include <cyg/io/sst25xx.h> +#include <cyg/io/spi_freescale_dspi.h> +#include <pkgconf/devs_flash_sst25xx_freescale_dspi.h> + +// SPI bus device configuration +#define SST25XX_SPI_FRAME_SIZE 8 +#define SST25XX_SPI_CLOCK_POL 0 +#define SST25XX_SPI_CLOCK_PHASE 0 + +#ifdef CYGHWR_DEVS_FLASH_SST25XX_DEV0_SPI_USE_DBR +# define SST25XX_SPI_DBR_DEV0 1 +#else +# define SST25XX_SPI_DBR_DEV0 0 +#endif + +// Underlaying Freescale DSPI device +CYG_DEVS_SPI_FREESCALE_DSPI_DEVICE( + sst25xx_spi_dev0, // Device name + CYGHWR_DEVS_FLASH_SST25XX_DEV0_SPI_BUS, // SPI bus + CYGHWR_DEVS_FLASH_SST25XX_DEV0_SPI_CS, // Dev num (CS) + SST25XX_SPI_FRAME_SIZE, // Frame size + SST25XX_SPI_CLOCK_POL, // Clock pol + SST25XX_SPI_CLOCK_PHASE, // Clock phase + CYGHWR_DEVS_FLASH_SST25XX_DEV0_SPEED, // Clock speed (Hz) + CYGHWR_DEVS_FLASH_SST25XX_DEV0_CS_DLY, // CS assert delay + CYGHWR_DEVS_FLASH_SST25XX_DEV0_CS_DLY, // CS negate delay + CYGHWR_DEVS_FLASH_SST25XX_DEV0_CS_DLY, // Delay between transfers + CYGHWR_DEVS_FLASH_SST25XX_DEV0_CS_DLY_UN,// Delay unit (100 or 1000 ns) + SST25XX_SPI_DBR_DEV0 // Use double baud rate +); + +//----------------------------------------------------------------------------- +// Instantiate the SST25xx device driver. + +CYG_DEVS_FLASH_SPI_SST25XX_DRIVER(sst25xx_flash_dev0, + CYGNUM_DEVS_FLASH_SPI_SST25XX_DEV0_MAP_ADDR, + &sst25xx_spi_dev0); + +#endif // defined(CYGPKG_IO_SPI) && defined(CYGPKG_DEVS_FLASH_SPI_SST25XX) + +//========================================================================== +// EOF sst25xx_freescale_dspi.c |