2005-01-28  Nick Garnett  <nickg@ecoscentric.com>

	* src/legacy_dev.c (legacy_flash_init): Assign flash_info.pf from
	flash device field. Otherwise drivers try to call an invalid
	address.
	(legacy_flash_program): The last argument to flash_program_buf()
	is not the block size but the programming buffer size.

2005-01-19  Jonathan Larmour  <jifl@eCosCentric.com>

	* src/legacy_api.c (flash_errmsg): Was missing. Add.

2004-12-02  Bart Veer  <bartv@ecoscentric.com>

	* include/flash_dev.h: now provides everything needed by flash
	device drivers.

	* include/flash_priv.h: removed, subsumed by flash_dev.h
	
	* include/flash.h, src/flash.c, src/flashiodev.c,
	  src/legacy_api.c, src/legacy_dev.c:
	Replace implicit #include's of <cyg/io/flash_priv.h> with explicit
	#include's of <cyg/io/flash_dev.h>

2004-11-29  Bart Veer  <bartv@ecoscentric.com>
	
	* include/flash_priv.h, src/flash.c, src/legacy_dev.c: remove
	hwr_map_error() from V2 drivers

	* include/flash_priv.h, src/flash.c, src/legacy_dev.c: provide
	dummy init/query/lock/unlock functions for use by device drivers
	which do not support/need this functionality. Export the
	anonymizer function.

2004-11-28  Bart Veer  <bartv@ecoscentric.com>

	* src/flash.c (flash_sort_and_check): previous patch would have
	resulted in init failure if only one device initialized.
	(cyg_flash_get_info): handle per-device init flag

2004-11-25  Andrew Lunn  <andrew.lunn@ascom.ch>

	* src/flash.c (flash_sort_and_check): Don't add devices which
	failed to initialise onto the list. Don't bother sorting the
	list if its empty or only has one entry.
	* src/flash.c (find_dev): All devices on the list are initialised so
	don't both checking the init flag.

2004-11-22  Bart Veer  <bartv@ecoscentric.com>

	* src/legacy_dev.c: remove .2ram attributes. These functions do
	not manipulate the hardware, there is no need for them to live in
	ram rather than flash
	* include/flash_priv.h, src/legacy_dev.c: clean up the interface
	between the generic flash code and the device drivers
	* include/flash_priv, src/flash_legacy.h, src/flash.c,
	src/legacy_dev.c: move cache stuff andother legacy macros
	to an internal header.
	* include/flash.h, include/flash_priv.h, doc/flash.sgml,
	src/flash.c, src/legacy_dev.c: put const in the right places,
	and rename cyg_block_info to cyg_flash_block_info

2004-11-21  Bart Veer  <bartv@ecoscentric.com>

	* src/flash.c, include/flash_priv.h, cdl/io_flash.h: optimize
	for the case of a single flash device.
	* include/flash.h, src/flash.c, doc/flash.sgml: remove
	cyg_flash_code_overlaps()
	* include/flash_priv.h, include/flash.h:
	CYGSEM_IO_FLASH_LEGACY_DEVICE_API has been removed, test
	CYGHWR_IO_FLASH_DEVICE_LEGACY instead 
	* cdl/io_flash.cdl: lots of clean-ups
	* src/legacy_dev.c (legacy_flash_read): only needed if the
	underlying legacy driver required indirect reads.
	* src/flash.c: encapsulate various optional bits of code in
	macros, to cut down on the #ifdef's in the main code

2004-11-20  Bart Veer  <bartv@ecoscentric.com>

	* cdl/io_flash.cdl, src/flash.c(cyg_flash_read): add an interface
	for hardware which requires indirect reads, and suppress
	unnecessary code if direct reads are always available.
	* src/flash.c: rearrange loops to avoid address comparisons, which
	tend to go wrong if the flash is at the end of the address space

2004-10-06  Andrew Lunn  <andrew.lunn@ascom.ch>

	* src/legacy_dev.c (legacy_flash_init): The end is the size plus
	the start.

2004-09-30  Savin Zlobec <savin@elatec.si>

	* src/flash.c: Offset into the block is not calculated correctly
	when the flash start is not aligned on a flash block.
	* src/legacy_dev.c (legacy_flash_read): Fixed typo.

2004-09-14  Andrew Lunn  <andrew.lunn@ascom.ch>

	* src/flash.c (cyg_flash_init): Add assert checking that the
	end address matches the block information.
	* src/legacy_dev.c (legacy_flash_init): Ensure that the end
	address is the last valid address, not the first invalid address.

2004-09-09  Andrew Lunn  <andrew.lunn@ascom.ch>

	* src/flash.c: Support flash blocks of arbitary size. The
	DataFlash devices for example have block of 528 bytes.

2004-08-21  Andrew Lunn  <andrew.lunn@ascom.ch>

        * removed the functions cyg_flash_get_limits and
	cyg_flash_get_block_info. Reimplemented the legacy functions
	that depended on them and flashiodev.c
	
2004-08-19  Andrew Lunn  <andrew.lunn@ascom.ch>

	* src/flashiodev.c Ordering problem again. If an invalid name is
	configured the lookup would fail and it then was impossible to do
	a cyg_io_config_set. Lookup cannot fail because the name does not
	exist in FIS.

2004-08-13  Andrew Lunn  <andrew.lunn@ascom.ch>

        * src/flash.c: Make the flock lock/unlock code compile without
	warnings.
	* src/flashiodev.c (flashiodev_lookup): Only initialize the device
	if we have not already been initialized via cyg_set_config().
	This stopped redboots mount -f working.

2004-08-09  Andrew Lunn  <andrew.lunn@ascom.ch>

	* src/flashiodev.c (flashiodev_lookup): Moved most of the
	flashiodev_init into this new function. This fixed the ordering
	issue with redboot startup. When doing a FIS name lookup in
	flashiodev_init, redboot was not yet nitialised so lookup
	failed. Moving this into flashiodev_lookup solves this problem.
	Its now possible for redboot to mount the jffs2 filesystem with 
	-d /dev/flash1.

2004-08-06  Andrew Lunn  <andrew.lunn@ascom.ch>

	* src/flashiodev.c: Fix typo in macro and configuration options
	
2004-08-05  Andrew Lunn  <andrew.lunn@ascom.ch>

	* src/flash.c: Major rewrite to implement a new API
	* src/legacy_api.c: Support the legacy API
	* src/legacy_drv.c: Support the legacy driver API
	* src/flashiodev.c: Support the new API and multiple devices
	* include/flash_priv.h: Interface devices should use
	* cdl/io_flash.cdl: Updates for new interface and multiple devices.
	
2004-06-20  Andrew Lunn  <andrew.lunn@ascom.ch>

	* src/flash.c (flash_read): Don't check if the flash is write 
  	  protected before performing a read.
        * doc/flash.sgml
	* cdl/io_flash.cdl: Added documentation of the FLASH API

2004-04-29  Sebastien Couret  <sebastien.couret@elios-informatique.com>
2004-04-29  Jonathan Larmour  <jifl@eCosCentric.com>

	* src/flashiodev.c: When checking flash upper bound, allow for end
	of flash at 0xffffffff.

2003-11-27  David Woodhouse  <dwmw2@infradead.org>

	* src/flashiodev.c: Enable set_config() and implement
	CYG_IO_SET_CONFIG_FLASH_FIS_NAME.
	
2003-11-25  Andrew Lunn  <andrew.lunn@ascom.ch>

	* src/flash.c: gcc 3.x vs gcc 2.x problems. 

2003-11-24  Jani Monoses  <jani@iv.ro>

	* cdl/io_flash.cdl:
	* include/flash.h: Remove CYGNUM_FLASH_WORKSPACE_SIZE cdl option. 
 
2003-11-24  Roland Ca�ebohm <roland.cassebohm@visionsystems.de>

	* src/flashiodev.c (flashiodev_bwrite): Use flash_read rather than
	directly doing a memcpy. 

2003-11-20  Jani Monoses  <jani@iv.ro>

	* src/flash.c: 
	* src/flashiodev.c: 
	* include/flash.h: Remove references to work_space and work_space_size
	since they are no longer used.

2003-11-20  Jani Monoses  <jani@iv.ro>

	* cdl/io_flash.cdl:
	* src/flash.c: Remove handling of CYGHWR_IO_FLASH_DEVICE_NOT_IN_RAM
	now that all flash drivers use ELF sections to specify which parts
	go in RAM.

2003-10-08  Roland Cassebohm  <roland.cassebohm@visionsystems.de>

	* src/flash.c: Fix parse error if CYGSEM_IO_FLASH_READ_INDIRECT 
	is not defined.

2003-09-19  Gary Thomas  <gary@mlbassoc.com>

	* src/flash.c: 
	* include/flash.h: 
	* cdl/io_flash.cdl: Add support for NAND (indirectly accessed)
	devices.  This includes a generic "flash_read_buf()" function.

2003-04-14  Jani Monoses  <jani@iv.ro>

	* include/flash_dev.h: Include <cyg/infra/cyg_type.h> 

2003-03-19  Thomas Koeller <thomas.koeller@baslerweb.com>

	* src/flashiodev.c: Fixed trivial error.

2003-03-03  Knud Woehler <knud.woehler@microplex.de>

	* src/flashiodev.c:
	* cdl/io_flash.cdl: Add CYGNUM_IO_FLASH_BLOCK_CFG_FIS_1 / 
	CYGNUM_IO_FLASH_BLOCK_CFG_STATIC_1. Initialize the block device 
	from the FIS table.
	
2003-02-24  Jonathan Larmour  <jifl@eCosCentric.com>

	* cdl/io_flash.cdl: Remove irrelevant doc link - default to top
	level.

2002-01-31  Jonathan Larmour  <jlarmour@redhat.com>

	* src/flashiodev.c: Fix bounds checking and offsetting.

	* cdl/io_flash.cdl (CYGNUM_IO_FLASH_BLOCK_LENGTH_1): Default to
	0x100000 for convenience.

2002-01-30  Jonathan Larmour  <jlarmour@redhat.com>

	* cdl/io_flash.cdl: Allow specification of an offset and length
	of the region of flash.
	* src/flashiodev.c: Use it.

2002-01-24  Jesper Skov  <jskov@redhat.com>

	* include/flash.h: Add a comment about the obvious: the flash
	caching macros should be called with interrupts disabled.

2002-01-23  Jonathan Larmour  <jlarmour@redhat.com>

	* cdl/io_flash.cdl: Add CYGPKG_IO_FLASH_BLOCK_DEVICE and
	CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_1 to allow exporting flash
	as block devices accessible from file systems.
	* src/fileiodev.c: New file implementing this.
	* include/flash.h: Add typedefs for the various structures used
	to configure the block devices.

2002-01-18  Paul Fine  <pfine@delcomsys.com>

	* src/flash.c : Modified flash_verify_addr, flash_erase,
	flash_lock and flash_unlock to to work properly when the location
	of the flash in the memory map is at the very top of the address
	space.  We check and handle values that may overflow.

2001-10-28  Gary Thomas  <gthomas@redhat.com>

	* src/flash.c (flash_erase): Don't call hardware layer if block
	appears to be already erased [faster and less wear & tear].

2001-10-25  Jonathan Larmour  <jlarmour@redhat.com>

	* include/flash_dev.h: Fix test of 4x16-bit flash parts.
	Spotted by Jose Pascual <josepascual@almudi.com>

2001-10-16  Jesper Skov  <jskov@redhat.com>

	* src/flash.c: Include string.h

	* cdl/io_flash.cdl: Package requires ISOINFRA and string
	functions.

2001-10-15  David Howells  <dhowells@redhat.com>

	* src/flash.c: Include string.h to get mem*() functions.

2001-09-25  Gary Thomas  <gthomas@redhat.com>

	* include/flash.h: Remove warning on printf() prototype.

2001-08-10  Jesper Skov  <jskov@redhat.com>

	* cdl/io_flash.cdl: Changed flavor of
	CYGHWR_IO_FLASH_BLOCK_LOCKING to booldata.
	* include/flash.h: Matching changes.
	* src/flash.c: Matching changes.

2001-07-23  David Howells  <dhowells@redhat.com>

	* cdl/io_flash.cdl: Added software write protect option.
	* include/flash.h: Ditto.
	* src/flash.c: Added software write protect option and bank
	support, and prevented low-level writes from being handed
	cross-block data chunks.

2001-07-20  Gary Thomas  <gthomas@redhat.com>

	* include/flash.h: 
	* cdl/io_flash.cdl: Name convention: CYGINT_FLASH_WORKSPACE_SIZE 
	renamed to be CYGNUM_FLASH_WORKSPACE_SIZE.

2001-07-19  Gary Thomas  <gthomas@redhat.com>

	* include/flash.h: 
	* cdl/io_flash.cdl: New option CYGINT_FLASH_WORKSPACE_SIZE used
	to control how much memory is reserved for use by FLASH drivers.

2001-06-19  Hugo Tyson  <hmt@redhat.com>

	* src/flash.c (flash_program): Only verify program with memcmp if
	the status code suggests the programming went OK so far.
	Otherwise all errors become verify errors.

	(flash_init): Fix bug in removal of dependency of printf().  The
	pointer was not initialized until after the call into the driver.

2001-06-11  Gary Thomas  <gthomas@redhat.com>

	* src/flash.c: 
	* include/flash.h: Remove dependency on printf() via user functions.

2001-05-23  Jesper Skov  <jskov@redhat.com>

	* include/flash_dev.h (FLASH_P2V): Use CYG_ADDRWORD instead of int.

	* src/flash.c: Copy functions to RAM iff
	CYGHWR_IO_FLASH_DEVICE_NOT_IN_RAM defined.

	* cdl/io_flash.cdl: Changed CYGHWR_IO_FLASH_DEVICE_IN_RAM to
	CYGHWR_IO_FLASH_DEVICE_NOT_IN_RAM.

2001-05-21  Jonathan Larmour  <jlarmour@redhat.com>

	* include/flash_dev.h: Fix cyg_uin16 typo.

2001-03-29  Mark Salter  <msalter@redhat.com>

	* cdl/io_flash.cdl (CYGSEM_IO_FLASH_VERIFY_PROGRAM): New option
	to control whether or not to perform extra verification of flash
	programming.
	* src/flash.c (flash_program): No verification unless
	CYGSEM_IO_FLASH_VERIFY_PROGRAM defined.

2001-03-21  Gary Thomas  <gthomas@redhat.com>

	* src/flash.c (flash_program): Verify data after programming.

2001-03-21  Jesper Skov  <jskov@redhat.com>

	* include/flash.h: Added low voltage error message.
	* src/flash.c: And its error message.

2001-03-17  Gary Thomas  <gthomas@redhat.com>

	* src/flash.c (flash_program): 
	* include/flash.h: Add support for [StrataFLASH] buffered writes.
	This requires knowledge of the device write buffer size [saved].

2001-03-01  Gary Thomas  <gthomas@redhat.com>

	* src/flash.c: 
	* include/flash.h: Allow platform to define pre/post routines
	to enable/disable device access.  These may be required, e.g.
	to turn on some voltage, etc.

2001-02-23  Jesper Skov  <jskov@redhat.com>

	* include/flash.h: HAL_FLASH_CACHES_WANT_OPTIMAL replaced with
	(opposite sense) HAL_FLASH_CACHES_OLD_MACROS.

	* src/flash.c (__anonymizer): Use to force the compiler to use
	jumps instead of branches.

2001-02-22  Jesper Skov  <jskov@redhat.com>

	* include/flash_dev.h: Added. Contains macros and definitions
	common to all (new style) flash device drivers.

	* include/flash.h: Added two new error codes.
	* cdl/io_flash.cdl: Added CYGHWR_IO_FLASH_DEVICE_IN_RAM.
	* src/flash.c: Made functions respect
	CYGHWR_IO_FLASH_DEVICE_IN_RAM and jump directly to the code
	instead of copying it around.
	(__arm_broken): Work around problem with ARM tools.

2001-02-06  Hugo Tyson  <hmt@redhat.com>

	* src/flash.c (flash_erase): Add an additional argument to the
	call into the driver, being the blocksize (as discovered).  This
	allows a gross check for actual erase in some drivers.  Those that
	don't use it, it's harmless - after all, this is an API by trust.

2000-12-06  Jesper Skov  <jskov@redhat.com>

	* src/flash.c (flash_dev_query): Added. Allows reloc/cache magic
	to be removed from device drivers (eventually). Also fixed some
	warnings, and made function references use char[] instead of just
	char to prevent MIPS compiler from messing up.

	* include/flash.h: Added FLASH_ERR_DRV_VERIFY and flash_dev_query.

2000-11-27  Jesper Skov  <jskov@redhat.com>

	* src/flash.c: Do all flash access inside properly
	cache-controlled region.
	* include/flash.h: Cache definitions.

2000-11-17  Jesper Skov  <jskov@redhat.com>

	* src/flash.c: Added debug mode, allowing device driver to use printf.

2000-11-16  Jesper Skov  <jskov@redhat.com>

	* src/flash.c: Added suspend error messages.
	* include/flash.h: Same.

2000-09-01  Hugo Tyson  <hmt@cygnus.co.uk>

	* include/flash.h: 
	* src/flash.c: CYGHWR_IO_FLASH_BLOCK_LOCKING is an interface, so
	it's always defined; look for > 0 instead.

2000-08-28  Gary Thomas  <gthomas@redhat.com>

	* src/flash.c: 
	* include/flash.h: 
	* cdl/io_flash.cdl: Support block locking (optional by hardware).

2000-08-22  Hugo Tyson  <hmt@cygnus.co.uk>

	* src/flash.c (flash_program): Add HAL_ICACHE_DISABLE/ENABLE pairs
	around calls to RAM copy of programming/erasing function - this is
	necessary to get reliable operation on EBSA285 and similar.
	Otherwise, what is in the instruction cache might be run instead.

2000-08-14  Gary Thomas  <gthomas@redhat.com>

	* include/flash.h: Add block size mask for finding block boundaries.

	* src/flash.c: Use block size properly.

2000-07-29  Gary Thomas  <gthomas@redhat.com>

	* include/flash.h: 
	* src/flash.c (flash_get_block_info): New function.
	(flash_program): Program in block_size chunks as much as possible.

//===========================================================================
//####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####
//===========================================================================