2014-08-11  Ross Younger  <wry@ecoscentric.com>

	* nand.c nand_bbt.c nand_synth.c: Make build with recent gcc

2011-07-21  Jonathan Larmour  <jifl@eCosCentric.com>

	* src/nand.c (valid_page_addr): Silence signed/unsigned warning.

2011-04-08  Jonathan Larmour  <jifl@eCosCentric.com>

	* tests/nand_eccequiv.c (cyg_user_start): Use correct format for
	FAIL output.

2010-07-09  Ross Younger  <wry@eCosCentric.com>

	* nand.c: Fix name of cyg_nandp_bbt_markbad_pageaddr to match header.

2010-04-20  Ross Younger  <wry@eCosCentric.com>

	* nand_ecc.h nand.c: Expand ECC interface to allow different
	calculate functions during reads and writes, as needed by some
	hardware ECC implementations. Defines
	CYGSEM_IO_NAND_ECC_SPLIT_FUNCTION.
	* nandunit.c nand_eccequiv.c nand_sweccwalk.c: Fix up.
	* nand.c nand_oob.c: Fix uninitialised OOB issue.
	* tests/nand_readwrite.c: Add further checks to confirm
	the spare area works as expected.

2010-03-16  Ross Younger  <wry@eCosCentric.com>

	* tests: Prefix test names with "nand", for consistency.
	* utils/erasenand.c: Fix off-by-one error.

2010-03-12  Ross Younger  <wry@eCosCentric.com>

	* nand.c: Short-cut zero-length part-reads; don't pass them on to the
	underlying driver.
	* nand.h: Correct off-by-one error (in the safe direction) in the
	definition of CYG_NAND_PARTITION_NBLOCKS.

2009-11-24  Ross Younger  <wry@eCosCentric.com>

	* tests/rwbenchmark.c: Add bulk-read and bulk-write modes
	which measure time for a whole block. Improve timing output 
	to scale itself to milliseconds where appropriate.

	* nand_ecc.h, nand_ecc_mtd_fast.c: Expose the byte-parity table
	for use in other packages.

2009-11-19  Ross Younger  <wry@eCosCentric.com>

	Significant interface change.
	* nand.h: Application-facing functions now take partition-relative
	addresses, not device-relative addresses. 
	Rename functions cyg_nand_* -> cyg_nandp_* to reflect this (change the
	interface, change the name).
	Create helper macros CYG_NAND_PARTITION_N{BLOCKS,PAGES}.
	Rename NAND_* macros to CYG_NAND_*.
	* tests, utils: Update to new semantics.
	* nand.cdl: Declare CYGSEM_IO_NAND_APPINTERFACE_VERSION 
	- calculated, 2 - and add a tripwire to ensure YAFFS is updated.
	* docs/nand.sgml: Updated to suit.

2009-11-17  Ross Younger  <wry@eCosCentric.com>

	* nand.c: Cosmetic messages fix

2009-11-13  Ross Younger  <wry@eCosCentric.com>

	* utils/erasenand.c: Fix fencepost error
	* nand_device.h nand.c: Further refine CYGSEM_IO_NAND_USE_BBT,
	drop the relevant parts of the struct when not enabled.
	* utils/erase_bbt_dangerous.c: Build fix for non-default config
	* nand_bbt.c: Fix logic error on initial scan

2009-11-12  Ross Younger  <wry@eCosCentric.com>

	* nand.c: Add timing instrumentation hooks.
	* nand.cdl: Add CYGSEM_IO_NAND_INSTRUMENT_TIMING to mediate them.
	* misc/timetag_to_csv.pl: Helper perl script for use with them.

2009-11-09  Ross Younger  <wry@eCosCentric.com>

	* nand.h: Rationalise interface:
	  * read_page: now only reads a whole page and/or its spare.
	  * read_part_page: Created.  Allows part-pages and optionally
	  not checking ECC.
	  * write_page: now only writes a whole page and/or its spare.
	  + nand_ecc.h: Drop earlier attempt to support sub-page ECC.
	* tests/readwrite.c: Test out cyg_nand_read_part_page().
	* tests: Update for interface tweak.
	* nand_bbt.c: Rationalise BBT finding into one place and fix to 
	better cope with the situation where only one BBT block had
	been written. Cure an internal race.
	* nand_ecc_mtd_fast.c: Speed up checking phase.

2009-11-06  Ross Younger  <wry@eCosCentric.com>

	* nand_ecc_mtd_fast.c: Created. Complete rewrite of software 
	ECC for massive performance boost. In summary, use all 32 bits
	of a register at once, and part-unroll the operation. (Also
	rewrote the ecc repair function to drop the dependency on the
	previous (imported) code.
	* tests: Update to suit the above.
	* tests/eccequiv.c: Created (used to test new ECC implementation).

2009-10-28  Ross Younger  <wry@eCosCentric.com>

	* nand.cdl, nand.c, nand_bbt.[ch]: CYGSEM_IO_NAND_USE_BBT
	implemented (default on).  Updated tests and utils to suit.
	* nand.cdl: Add convenience options to build the utils as well
	as the tests.
	* tests/sweccwalk.c: Created (software ECC bit-walker and repair
	consistency checks)
	* nand.sgml: Updated for the above. Documented ECC algorithm
	interface.
	* tests/rwbenchmark.c: Have rwbenchmark use randomised test data
	and check its work for better validity.

2009-10-08  Ross Younger  <wry@eCosCentric.com>

	* nand_ecc.h, nand.c, nand_ecc_mtd.c: Expand ECC interface
	to better allow hardware assistance.
	* nand_device.h, nand.cdl: Change function set ("v2"), add cdl marker
	* nand.c: Implement v2 read/write, updated devinit
	* nand.c, nand_bbt.h: Internally expose "raw" page read/write fns
	* nand_oob.c, nand_oob.h: Create packed_{read,write} fns
	* nand_bbt.c: Use raw page read/write fns, packed read/write fns
	- and sanity test them on startup
	* nand.sgml: Document driver interface change.
	* rwbenchmark.c: Check that we read the requisite amount of data.

2009-09-28  Ross Younger  <wry@eCosCentric.com>

	* tests: Don't put large arrays on stack.

2009-08-28  Ross Younger  <wry@eCosCentric.com>

	* doc/nand.sgml: Update. Split entries for NAND device drivers out into
	their individual driver packages.
	* tests: Moved bbt.c and multipagebbt.c into devs/nand/synth/

2009-07-28  Ross Younger  <wry@eCosCentric.com>

	* utils: Add erasenand.c; build fix erase_bbt_dangerous.c

2009-07-21  Ross Younger  <wry@eCosCentric.com>

	* nand_bbt.c: Fix BBT initialisation bug

2009-07-17  Ross Younger  <wry@eCosCentric.com>

	* nand.sgml: Prep for inclusion in docbuilds

2009-07-09 Ross Younger  <wry@eCosCentric.com>

	* nand_bbt.c: Fix corner case arising from a write failure on a BBT block.

2009-07-02 Ross Younger  <wry@eCosCentric.com>

	* tests: Add rwbenchmark.c

2009-06-17 Ross Younger  <wry@eCosCentric.com>

	* Global: Create a per-device lock to remove this burden from drivers.
	Retab for consistency with the rest of eCos.
	* cdl: Create CYGNUM_NAND_PAGEBUFFER; NAND drivers must impose
	requirements on this according to the largest device they support.
	Add dependency on stdlib.
	* nand.c, util.c: Add more assertions.
	* nand_app.h: Renamed to nand.h for consistency with other packages
	* nand_bbt.c: Refactor to use the pagebuffer to not be so stack-greedy.
	Properly incorporate both on-chip BBTs in case we were interrupted
	when writing out. Add more assertions.
	* nand_bbt.h: Move BLOCK2PAGEADDR and PAGE2BLOCKADDR to util.h.
	Header made internal.
	* nand_ecc.h: Rename ECCPERPAGE to CYG_NAND_ECCPERPAGE.
	* nand_oob.h: Rename NAND_APPLICATION_OOB to CYG_NAND_APPLICATION_OOB,
	similarly for OOB_MAX_ECC_SLOTS and OOB_MAX_APP_SLOTS.
	* doc: Linewrap for consistency
	* tests: Tweak to make more likely to work in a minimal config.
	Move mkvector.c and ar4test.c into misc/.
	bbt doesn't mandate synth.
	eccdamage moved to synth.

2009-06-02 Ross Younger  <wry@eCosCentric.com>

	* cyg_nand_init: Removed in toto, in favour of a static constructor.
	* Global: Replaced all use of diag_printf with new NAND_ERROR macro.

2009-06-01 Ross Younger  <wry@eCosCentric.com>

	* src/util.c include/util.h: Created

2009-03-02 Ross Younger  <wry@eCosCentric.com>

	* New package. NAND flash access library.

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