| 1 |
27 |
unneback |
//==========================================================================
|
| 2 |
|
|
//
|
| 3 |
|
|
// arm_integrator_flash.c
|
| 4 |
|
|
//
|
| 5 |
|
|
// Flash programming for Intel FlashFile devices on ARM Integrator board
|
| 6 |
|
|
//
|
| 7 |
|
|
//==========================================================================
|
| 8 |
|
|
//####ECOSGPLCOPYRIGHTBEGIN####
|
| 9 |
|
|
// -------------------------------------------
|
| 10 |
|
|
// This file is part of eCos, the Embedded Configurable Operating System.
|
| 11 |
|
|
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
|
| 12 |
|
|
//
|
| 13 |
|
|
// eCos is free software; you can redistribute it and/or modify it under
|
| 14 |
|
|
// the terms of the GNU General Public License as published by the Free
|
| 15 |
|
|
// Software Foundation; either version 2 or (at your option) any later version.
|
| 16 |
|
|
//
|
| 17 |
|
|
// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
|
| 18 |
|
|
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
| 19 |
|
|
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
| 20 |
|
|
// for more details.
|
| 21 |
|
|
//
|
| 22 |
|
|
// You should have received a copy of the GNU General Public License along
|
| 23 |
|
|
// with eCos; if not, write to the Free Software Foundation, Inc.,
|
| 24 |
|
|
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
| 25 |
|
|
//
|
| 26 |
|
|
// As a special exception, if other files instantiate templates or use macros
|
| 27 |
|
|
// or inline functions from this file, or you compile this file and link it
|
| 28 |
|
|
// with other works to produce a work based on this file, this file does not
|
| 29 |
|
|
// by itself cause the resulting work to be covered by the GNU General Public
|
| 30 |
|
|
// License. However the source code for this file must still be made available
|
| 31 |
|
|
// in accordance with section (3) of the GNU General Public License.
|
| 32 |
|
|
//
|
| 33 |
|
|
// This exception does not invalidate any other reasons why a work based on
|
| 34 |
|
|
// this file might be covered by the GNU General Public License.
|
| 35 |
|
|
//
|
| 36 |
|
|
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
|
| 37 |
|
|
// at http://sources.redhat.com/ecos/ecos-license/
|
| 38 |
|
|
// -------------------------------------------
|
| 39 |
|
|
//####ECOSGPLCOPYRIGHTEND####
|
| 40 |
|
|
//==========================================================================
|
| 41 |
|
|
//#####DESCRIPTIONBEGIN####
|
| 42 |
|
|
//
|
| 43 |
|
|
// Author(s): jskov
|
| 44 |
|
|
// Contributors: jskov
|
| 45 |
|
|
// Date: 2001-08-07
|
| 46 |
|
|
// Purpose:
|
| 47 |
|
|
// Description:
|
| 48 |
|
|
//
|
| 49 |
|
|
//####DESCRIPTIONEND####
|
| 50 |
|
|
//
|
| 51 |
|
|
//==========================================================================
|
| 52 |
|
|
|
| 53 |
|
|
//--------------------------------------------------------------------------
|
| 54 |
|
|
// Device properties
|
| 55 |
|
|
|
| 56 |
|
|
// We use the eight Intel 28F320S3 parts on the Integrator board.
|
| 57 |
|
|
// These are arranged in a 2x4 grid, giving 32 bits wide by 32MB long.
|
| 58 |
|
|
|
| 59 |
|
|
#define CYGNUM_FLASH_INTERLEAVE (2)
|
| 60 |
|
|
#define CYGNUM_FLASH_SERIES (4)
|
| 61 |
|
|
#define CYGNUM_FLASH_WIDTH (16)
|
| 62 |
|
|
#define CYGNUM_FLASH_BASE (0x24000000)
|
| 63 |
|
|
|
| 64 |
|
|
//--------------------------------------------------------------------------
|
| 65 |
|
|
// Platform specific extras
|
| 66 |
|
|
|
| 67 |
|
|
#define CYGHWR_FLASH_WRITE_ENABLE() \
|
| 68 |
|
|
{ \
|
| 69 |
|
|
volatile cyg_uint32 *ebi_csr1 = (volatile cyg_uint32 *)INTEGRATOR_EBI_CSR1; \
|
| 70 |
|
|
\
|
| 71 |
|
|
/* allow write access to EBI_CSR1 area (Flash) */ \
|
| 72 |
|
|
*ebi_csr1 |= INTEGRATOR_EBI_WRITE_ENABLE; \
|
| 73 |
|
|
\
|
| 74 |
|
|
if (!(*ebi_csr1 & INTEGRATOR_EBI_WRITE_ENABLE)) { \
|
| 75 |
|
|
*(volatile cyg_uint32 *)INTEGRATOR_EBI_LOCK = 0xA05F; \
|
| 76 |
|
|
*ebi_csr1 |= INTEGRATOR_EBI_WRITE_ENABLE; \
|
| 77 |
|
|
*(volatile cyg_uint32 *)INTEGRATOR_EBI_LOCK = 0; \
|
| 78 |
|
|
} \
|
| 79 |
|
|
\
|
| 80 |
|
|
/* Enable Vpp and allow write access to Flash in system controller */ \
|
| 81 |
|
|
*(volatile unsigned int *)INTEGRATOR_SC_CTRLS = FL_SC_CONTROL; \
|
| 82 |
|
|
}
|
| 83 |
|
|
|
| 84 |
|
|
#define CYGHWR_FLASH_WRITE_DISABLE() \
|
| 85 |
|
|
{ \
|
| 86 |
|
|
volatile cyg_uint32 *ebi_csr1 = (volatile cyg_uint32 *)INTEGRATOR_EBI_CSR1; \
|
| 87 |
|
|
\
|
| 88 |
|
|
/* disable write access to EBI_CSR1 area (Flash) */ \
|
| 89 |
|
|
*ebi_csr1 &= ~INTEGRATOR_EBI_WRITE_ENABLE; \
|
| 90 |
|
|
\
|
| 91 |
|
|
if (*ebi_csr1 & INTEGRATOR_EBI_WRITE_ENABLE) { \
|
| 92 |
|
|
*(volatile cyg_uint32 *)INTEGRATOR_EBI_LOCK = 0xA05F; \
|
| 93 |
|
|
*ebi_csr1 &= ~INTEGRATOR_EBI_WRITE_ENABLE; \
|
| 94 |
|
|
*(volatile cyg_uint32 *)INTEGRATOR_EBI_LOCK = 1; \
|
| 95 |
|
|
} \
|
| 96 |
|
|
\
|
| 97 |
|
|
/* Disable Vpp and disable write access to Flash in system controller */ \
|
| 98 |
|
|
*(volatile unsigned int *)INTEGRATOR_SC_CTRLS = 0; \
|
| 99 |
|
|
}
|
| 100 |
|
|
|
| 101 |
|
|
//--------------------------------------------------------------------------
|
| 102 |
|
|
// Now include the driver code.
|
| 103 |
|
|
#include "cyg/io/flash_28fxxx.inl"
|
| 104 |
|
|
|
| 105 |
|
|
// ------------------------------------------------------------------------
|
| 106 |
|
|
// EOF arm_integrator_flash.c
|
