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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [devs/] [flash/] [arm/] [integrator/] [v2_0/] [src/] [arm_integrator_flash.c] - Rev 27
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//========================================================================== // // arm_integrator_flash.c // // Flash programming for Intel FlashFile devices on ARM Integrator board // //========================================================================== //####ECOSGPLCOPYRIGHTBEGIN#### // ------------------------------------------- // This file is part of eCos, the Embedded Configurable Operating System. // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, 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., // 59 Temple Place, Suite 330, Boston, MA 02111-1307 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. // // This exception does not invalidate any other reasons why a work based on // this file might be covered by the GNU General Public License. // // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. // at http://sources.redhat.com/ecos/ecos-license/ // ------------------------------------------- //####ECOSGPLCOPYRIGHTEND#### //========================================================================== //#####DESCRIPTIONBEGIN#### // // Author(s): jskov // Contributors: jskov // Date: 2001-08-07 // Purpose: // Description: // //####DESCRIPTIONEND#### // //========================================================================== //-------------------------------------------------------------------------- // Device properties // We use the eight Intel 28F320S3 parts on the Integrator board. // These are arranged in a 2x4 grid, giving 32 bits wide by 32MB long. #define CYGNUM_FLASH_INTERLEAVE (2) #define CYGNUM_FLASH_SERIES (4) #define CYGNUM_FLASH_WIDTH (16) #define CYGNUM_FLASH_BASE (0x24000000) //-------------------------------------------------------------------------- // Platform specific extras #define CYGHWR_FLASH_WRITE_ENABLE() \ { \ volatile cyg_uint32 *ebi_csr1 = (volatile cyg_uint32 *)INTEGRATOR_EBI_CSR1; \ \ /* allow write access to EBI_CSR1 area (Flash) */ \ *ebi_csr1 |= INTEGRATOR_EBI_WRITE_ENABLE; \ \ if (!(*ebi_csr1 & INTEGRATOR_EBI_WRITE_ENABLE)) { \ *(volatile cyg_uint32 *)INTEGRATOR_EBI_LOCK = 0xA05F; \ *ebi_csr1 |= INTEGRATOR_EBI_WRITE_ENABLE; \ *(volatile cyg_uint32 *)INTEGRATOR_EBI_LOCK = 0; \ } \ \ /* Enable Vpp and allow write access to Flash in system controller */ \ *(volatile unsigned int *)INTEGRATOR_SC_CTRLS = FL_SC_CONTROL; \ } #define CYGHWR_FLASH_WRITE_DISABLE() \ { \ volatile cyg_uint32 *ebi_csr1 = (volatile cyg_uint32 *)INTEGRATOR_EBI_CSR1; \ \ /* disable write access to EBI_CSR1 area (Flash) */ \ *ebi_csr1 &= ~INTEGRATOR_EBI_WRITE_ENABLE; \ \ if (*ebi_csr1 & INTEGRATOR_EBI_WRITE_ENABLE) { \ *(volatile cyg_uint32 *)INTEGRATOR_EBI_LOCK = 0xA05F; \ *ebi_csr1 &= ~INTEGRATOR_EBI_WRITE_ENABLE; \ *(volatile cyg_uint32 *)INTEGRATOR_EBI_LOCK = 1; \ } \ \ /* Disable Vpp and disable write access to Flash in system controller */ \ *(volatile unsigned int *)INTEGRATOR_SC_CTRLS = 0; \ } //-------------------------------------------------------------------------- // Now include the driver code. #include "cyg/io/flash_28fxxx.inl" // ------------------------------------------------------------------------ // EOF arm_integrator_flash.c
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