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skrzyp |
# ====================================================================
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#
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# io_flash.cdl
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#
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# eCos IO configuration data
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#
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# ====================================================================
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## ####ECOSGPLCOPYRIGHTBEGIN####
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## -------------------------------------------
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## This file is part of eCos, the Embedded Configurable Operating System.
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## Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2006, 2009, 2010 Free Software Foundation, Inc.
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##
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## eCos is free software; you can redistribute it and/or modify it under
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## the terms of the GNU General Public License as published by the Free
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## Software Foundation; either version 2 or (at your option) any later
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## version.
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##
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## eCos is distributed in the hope that it will be useful, but WITHOUT
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## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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## FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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## for more details.
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##
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## You should have received a copy of the GNU General Public License
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## along with eCos; if not, write to the Free Software Foundation, Inc.,
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## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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##
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## As a special exception, if other files instantiate templates or use
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## macros or inline functions from this file, or you compile this file
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## and link it with other works to produce a work based on this file,
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## this file does not by itself cause the resulting work to be covered by
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## the GNU General Public License. However the source code for this file
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## must still be made available in accordance with section (3) of the GNU
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## General Public License v2.
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##
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## This exception does not invalidate any other reasons why a work based
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## on this file might be covered by the GNU General Public License.
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## -------------------------------------------
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## ####ECOSGPLCOPYRIGHTEND####
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# ====================================================================
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######DESCRIPTIONBEGIN####
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#
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# Author(s): gthomas
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# Original data: gthomas
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# Contributors: woehler, bartv
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# Date: 2000-07-06
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#
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#####DESCRIPTIONEND####
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#
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# ====================================================================
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cdl_package CYGPKG_IO_FLASH {
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display "FLASH device drivers"
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include_dir cyg/io
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doc ref/io-flash.html
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description "
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This package provides support for the flash devices on the
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current platform."
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requires CYGPKG_ISOINFRA
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requires CYGINT_ISO_STRING_STRFUNCS
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compile flash.c
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cdl_interface CYGHWR_IO_FLASH_DEVICE {
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display "Hardware FLASH device drivers"
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requires { CYGHWR_IO_FLASH_DEVICE >= 1 }
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description "
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This calculated option gives the number of flash devices
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on the current platform. The generic flash support requires
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at least one device."
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}
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cdl_interface CYGHWR_IO_FLASH_BLOCK_LOCKING {
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display "Hardware can support block locking"
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flavor booldata
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description "
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This option will be enabled by devices which can support
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locking (write-protection) of individual flash blocks. If
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none of the devices support locking then the relevant code
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in the generic flash package can be eliminated."
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}
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cdl_interface CYGHWR_IO_FLASH_INDIRECT_READS {
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display "Hardware requires indirect reads"
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flavor booldata
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description "
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Some flash devices can be read directly like any other
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memory. Others can only be accessed indirectly, which
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involves extra code. If none of the flash devices on the
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target hardware use indirect reads then the extra code
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can be eliminated."
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}
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cdl_interface CYGHWR_IO_FLASH_DEVICE_NEEDS_CACHE_HANDLED {
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display "Device driver needs cache handled centrally"
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flavor booldata
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description "
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Managing flash often requires interacting with the cache.
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Some device drivers do not require the generic flash code to
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manipulate the cache, either because they do it themselves or
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because the hardware does the right thing. Other drivers
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require the generic code to disable/enable the cache before
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calling into the driver."
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}
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cdl_interface CYGHWR_IO_FLASH_DEVICE_LEGACY {
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display "Hardware driver uses the legacy interface"
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flavor booldata
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compile -library=libextras.a legacy_dev.c
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description "
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The generic flash code can work with either a legacy device
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driver or with V2 drivers. If a legacy driver is used on the
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current platform then this option will be implemented."
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requires { CYGHWR_IO_FLASH_DEVICE_LEGACY <= 1 }
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# For now assume all legacy devices need the cache handled by
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# the central code
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implements CYGHWR_IO_FLASH_DEVICE_NEEDS_CACHE_HANDLED
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}
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cdl_option CYGSEM_IO_FLASH_READ_INDIRECT {
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display "Legacy device driver uses indirect reads."
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active_if CYGHWR_IO_FLASH_DEVICE_LEGACY
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flavor bool
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default_value 0
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requires { !CYGSEM_IO_FLASH_VERIFY_PROGRAM }
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description "
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This option will be asserted by devices which cannot support
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direct access to the FLASH memory contents (e.g. EEPROM or NAND
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devices). In these cases, the driver must provide an appropriate
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hardware access function."
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}
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cdl_option CYGSEM_IO_FLASH_CHATTER {
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display "Display status messages during flash operations"
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flavor bool
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default_value 1
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description "
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Selecting this option will cause the flash code to print status
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messages as various flash operations are undertaken."
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}
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cdl_option CYGSEM_IO_FLASH_VERIFY_PROGRAM {
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display "Verify data programmed to flash"
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flavor bool
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default_value 1
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active_if { CYGHWR_IO_FLASH_INDIRECT_READS < CYGHWR_IO_FLASH_DEVICE }
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description "
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Selecting this option will cause verification of data
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programmed to flash."
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}
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cdl_option CYGSEM_IO_FLASH_SOFT_WRITE_PROTECT {
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display "Platform has flash soft DIP switch write-protect"
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flavor bool
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default_value 0
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description "
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Selecting this option will cause the state of a hardware jumper or
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dipswitch to be read by software to determine whether the flash is
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write-protected or not."
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}
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cdl_component CYGPKG_IO_FLASH_BLOCK_DEVICE {
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display "Provide /dev block devices"
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flavor bool
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active_if CYGPKG_IO
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default_value 0
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compile -library=libextras.a flashiodev.c
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requires { CYGINT_IO_FLASH_BLOCK_DEVICE_METHODS > 0}
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description "
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Provide one or more block devices below /dev which can be
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accessed using standard I/O functions such as eCos cyg_io_read()
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and POSIX open()."
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cdl_interface CYGINT_IO_FLASH_BLOCK_DEVICE_METHODS {
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display "Number of methods to reference Flash"
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flavor bool
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no_define
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description "This interface counts the number of ways Flash can
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be referenced in order to be opened. This is so that
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the configuration can ensure that at least one method
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is available."
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}
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cdl_option CYGNUM_IO_FLASH_BLOCK_DEVICES {
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display "Number of /dev/flash/ device slots"
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flavor data
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default_value 2
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description "The number of simultaneously open flash devices
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permitted. This is statically configured, rather than
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dynamically allocated at run-time as it is likely the
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number required will be small."
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}
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cdl_option CYGFUN_IO_FLASH_BLOCK_FROM_FIS {
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display "Access using named FIS areas"
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requires CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT
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default_value CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT
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implements CYGINT_IO_FLASH_BLOCK_DEVICE_METHODS
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description "This method of access to Flash regions uses the names
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of FIS regions to identify the Flash device, or portion
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of the device. For example /dev/flash/fis/jffs2."
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}
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cdl_option CYGFUN_IO_FLASH_BLOCK_FROM_DEVOFFSET {
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display "Access using device numbers,offsets"
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default_value 1
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implements CYGINT_IO_FLASH_BLOCK_DEVICE_METHODS
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description "This method of access to Flash regions uses the Flash
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device number, along with an offset (which may be
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which will otherwise be assumed to be the whole device.
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For example /dev/flash/0/0x1000 or
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/dev/flash/1/0,65536."
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}
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}
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cdl_option CYGSEM_IO_FLASH_LEGACY_API {
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display "Provide the legacy user API"
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flavor bool
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default_value 1
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compile legacy_api.c
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description "
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Provide an implementation of the legacy user API. This is mapped
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onto the new API via a small layer of code"
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}
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cdl_component CYGPKG_IO_FLASH_BLOCK_DEVICE_LEGACY {
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display "Provide /dev block devices (legacy format)"
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flavor bool
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active_if CYGPKG_IO
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default_value 0
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compile -library=libextras.a flashiodevlegacy.c
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description "
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Provide one or more block devices below /dev which can be
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accessed using standard I/O functions such as eCos cyg_io_read()
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and POSIX open(). This format of configuration is deprecated,
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but is included for compatibility with older configurations."
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for { set ::dev 1 } { $::dev <= 2 } { incr ::dev } {
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cdl_component CYGPKG_IO_FLASH_BLOCK_DEVICE_$::dev {
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display "Provide block device $::dev"
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if { 1 == $::dev } {
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default_value 1
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} else {
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default_value 0
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}
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description "Provide block device $::dev for use with standard I/O"
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cdl_option CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_$::dev {
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display "Name of flash block device $::dev"
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flavor data
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default_value "\"\\\"/dev/flash$::dev\\\"\""
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description "
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This option determines the name by which the block
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device can be accessed."
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}
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cdl_interface CYGINT_IO_FLASH_BLOCK_CFG_$::dev {
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requires 1 == CYGINT_IO_FLASH_BLOCK_CFG_$::dev
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no_define
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}
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cdl_component CYGNUM_IO_FLASH_BLOCK_CFG_STATIC_$::dev {
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display "Static configuration via offset"
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default_value 1
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implements CYGINT_IO_FLASH_BLOCK_CFG_$::dev
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description "
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This configures the flash block device $::dev
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with static offset from the base of the first
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flash device and length"
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cdl_option CYGNUM_IO_FLASH_BLOCK_OFFSET_$::dev {
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display "Start offset from flash base"
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flavor data
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default_value 0xFFFFFFFF
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requires 0xFFFFFFFF != CYGNUM_IO_FLASH_BLOCK_OFFSET_$::dev
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description "
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| 278 |
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This gives the offset from the base of flash
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of the first flash device which this block device
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corresponds to."
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| 281 |
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}
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cdl_option CYGNUM_IO_FLASH_BLOCK_LENGTH_$::dev {
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display "Length"
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flavor data
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| 285 |
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default_value 0
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requires 0 != CYGNUM_IO_FLASH_BLOCK_LENGTH_$::dev
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description "
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| 288 |
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This gives the length of the region of flash given over
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to this block device."
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}
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}
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cdl_component CYGNUM_IO_FLASH_BLOCK_CFG_STATIC_ABSOLUTE_$::dev {
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display "Static configuration via absolute address"
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default_value 0
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implements CYGINT_IO_FLASH_BLOCK_CFG_$::dev
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| 297 |
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description "
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| 298 |
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This configures the flash block device $::dev
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with absolute base address and a length"
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| 300 |
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cdl_option CYGNUM_IO_FLASH_BLOCK_ABSOLUTE_START_$::dev {
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display "Start absolute address"
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flavor data
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default_value 0xFFFFFFFF
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requires 0xFFFFFFFF != CYGNUM_IO_FLASH_BLOCK_ABSOLUTE_START_$::dev
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description "
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| 307 |
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This gives the absolute address in flash which this
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block device corresponds to."
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| 309 |
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}
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| 310 |
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cdl_option CYGNUM_IO_FLASH_BLOCK_ABSOLUTE_LENGTH_$::dev {
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display "Length"
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flavor data
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default_value 0
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requires 0 != CYGNUM_IO_FLASH_BLOCK_ABSOLUTE_LENGTH_$::dev
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description "
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This gives the length of the region of flash given over
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| 317 |
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to this block device."
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}
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}
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cdl_component CYGNUM_IO_FLASH_BLOCK_CFG_FIS_$::dev {
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| 322 |
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display "Configuration from FIS"
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default_value 0
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implements CYGINT_IO_FLASH_BLOCK_CFG_$::dev
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description "
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This configures the flash block device $::dev
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from Redboot FIS"
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| 328 |
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| 329 |
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cdl_component CYGDAT_IO_FLASH_BLOCK_FIS_NAME_$::dev {
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| 330 |
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display "Name of FIS entry"
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flavor data
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requires "\"\"" != CYGDAT_IO_FLASH_BLOCK_FIS_NAME_$::dev
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if { 1 == $::dev } {
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default_value { "\"jffs2\"" }
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| 335 |
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} elseif { 2 == $::dev } {
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default_value { "\"jffs2-2\"" }
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| 337 |
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} else {
|
| 338 |
|
|
default_value { "\"\"" }
|
| 339 |
|
|
}
|
| 340 |
|
|
}
|
| 341 |
|
|
}
|
| 342 |
|
|
}
|
| 343 |
|
|
}
|
| 344 |
|
|
}
|
| 345 |
|
|
|
| 346 |
|
|
cdl_component CYGPKG_IO_FLASH_OPTIONS {
|
| 347 |
|
|
display "Flash device driver build options"
|
| 348 |
|
|
flavor none
|
| 349 |
|
|
description "
|
| 350 |
|
|
Package specific build options including control over
|
| 351 |
|
|
compiler flags used only in building this package,
|
| 352 |
|
|
and details of which tests are built."
|
| 353 |
|
|
|
| 354 |
|
|
|
| 355 |
|
|
cdl_option CYGPKG_IO_FLASH_CFLAGS_ADD {
|
| 356 |
|
|
display "Additional compiler flags"
|
| 357 |
|
|
flavor data
|
| 358 |
|
|
no_define
|
| 359 |
|
|
default_value { "" }
|
| 360 |
|
|
description "
|
| 361 |
|
|
This option modifies the set of compiler flags for
|
| 362 |
|
|
building the flash device drivers. These flags are used in addition
|
| 363 |
|
|
to the set of global flags."
|
| 364 |
|
|
}
|
| 365 |
|
|
|
| 366 |
|
|
cdl_option CYGPKG_IO_FLASH_CFLAGS_REMOVE {
|
| 367 |
|
|
display "Suppressed compiler flags"
|
| 368 |
|
|
flavor data
|
| 369 |
|
|
no_define
|
| 370 |
|
|
default_value { "" }
|
| 371 |
|
|
description "
|
| 372 |
|
|
This option modifies the set of compiler flags for
|
| 373 |
|
|
building the flash device drivers. These flags are removed from
|
| 374 |
|
|
the set of global flags if present."
|
| 375 |
|
|
}
|
| 376 |
|
|
|
| 377 |
|
|
cdl_component CYGPKG_IO_FLASH_TESTS {
|
| 378 |
|
|
display "Flash device driver tests"
|
| 379 |
|
|
flavor data
|
| 380 |
|
|
no_define
|
| 381 |
|
|
# requires { CYGINT_IO_FLASH_TESTS_ADDR_METHOD == 1 }
|
| 382 |
|
|
calculated { (CYGSEM_IO_FLASH_LEGACY_API ? "tests/flash1" : "") .
|
| 383 |
|
|
(CYGPKG_IO_FLASH_BLOCK_DEVICE ? " tests/flashdev" : "") }
|
| 384 |
|
|
description "
|
| 385 |
|
|
This option specifies the set of tests for the flash device drivers."
|
| 386 |
|
|
|
| 387 |
|
|
# cdl_interface CYGINT_IO_FLASH_TESTS_ADDR_METHOD {
|
| 388 |
|
|
# display "Set single Flash access method"
|
| 389 |
|
|
# }
|
| 390 |
|
|
#
|
| 391 |
|
|
#
|
| 392 |
|
|
# cdl_option CYGTST_IO_FLASH_TESTS_ADDR_FIS {
|
| 393 |
|
|
# display "Use \"flashtest\" FIS entry"
|
| 394 |
|
|
# default_value CYGFUN_IO_FLASH_BLOCK_FROM_FIS
|
| 395 |
|
|
# implements CYGINT_IO_FLASH_TESTS_ADDR_METHOD
|
| 396 |
|
|
# requires CYGFUN_IO_FLASH_BLOCK_FROM_FIS
|
| 397 |
|
|
# requires !CYGTST_IO_FLASH_TESTS_ADDR_HARDCODE
|
| 398 |
|
|
# description "
|
| 399 |
|
|
# This option means that tests will use the Flash region
|
| 400 |
|
|
# identified by the \"flashtest\" FIS entry if it is found."
|
| 401 |
|
|
# }
|
| 402 |
|
|
#
|
| 403 |
|
|
# cdl_component CYGTST_IO_FLASH_TESTS_ADDR_HARDCODE {
|
| 404 |
|
|
# display "Use hardcoded offset from Flash base"
|
| 405 |
|
|
# default_value !CYGTST_IO_FLASH_TESTS_ADDR_FIS
|
| 406 |
|
|
# implements CYGINT_IO_FLASH_TESTS_ADDR_METHOD
|
| 407 |
|
|
# requires !CYGTST_IO_FLASH_TESTS_ADDR_FIS
|
| 408 |
|
|
# description "
|
| 409 |
|
|
# This option means that tests will use the flash region
|
| 410 |
|
|
# identified by the \"flashtest\" FIS entry if it is found."
|
| 411 |
|
|
#
|
| 412 |
|
|
cdl_option CYGNUM_IO_FLASH_TEST_OFFSET {
|
| 413 |
|
|
display "Start offset from flash base"
|
| 414 |
|
|
flavor data
|
| 415 |
|
|
default_value 0x100000
|
| 416 |
|
|
description "
|
| 417 |
|
|
This gives the offset from the base of flash where tests
|
| 418 |
|
|
can be run. It is important to set this correctly, as an
|
| 419 |
|
|
incorrect value could allow the tests to write over critical
|
| 420 |
|
|
portions of the FLASH device and possibly render the target
|
| 421 |
|
|
board totally non-functional."
|
| 422 |
|
|
}
|
| 423 |
|
|
cdl_option CYGNUM_IO_FLASH_TEST_LENGTH {
|
| 424 |
|
|
display "Length"
|
| 425 |
|
|
flavor data
|
| 426 |
|
|
default_value 0x100000
|
| 427 |
|
|
description "
|
| 428 |
|
|
This gives the length of the region of flash used for testing."
|
| 429 |
|
|
}
|
| 430 |
|
|
# }
|
| 431 |
|
|
}
|
| 432 |
|
|
}
|
| 433 |
|
|
}
|
| 434 |
|
|
|
| 435 |
|
|
# EOF io_flash.cdl
|
