[PATCH 0/4 v2] mtd:nand:omap2: clean-up of supported ECC schemes

[Gupta, Pekon]

From: "Gupta, Pekon" <pekon at ti.com>

[Change v1 -> v2]
	added 	[PATCH 3/4] and [PATCH 4/4]

[PATCH 1/4]: clean-up and optimization for supported ECC schemes.
[PATCH 2/4]: add separate DT options each supported ECC scheme.
[PATCH 3/4]: update BCH4 ECC implementation (using ELM or using lib/bch.h)
[PATCH 4/4]: update DT attribute for ti,nand-ecc-opt

After this patch series, omap2-nand driver will supports following ECC schemes:
+---------------------------------------+---------------+---------------+
| ECC scheme				|ECC calculation|Error detection|
+---------------------------------------+---------------+---------------+
|OMAP_ECC_HAMMING_CODE_DEFAULT		|S/W		|S/W		|
|OMAP_ECC_HAMMING_CODE_HW		|H/W (GPMC)	|S/W		|
|OMAP_ECC_HAMMING_CODE_HW_ROMCODE	|H/W (GPMC)	|S/W		|
+---------------------------------------+---------------+---------------+
|OMAP_ECC_BCH4_CODE_HW_DETECTION_SW	|H/W (GPMC)	|S/W (lib/bch.h)|
|OMAP_ECC_BCH4_CODE_HW			|H/W (GPMC)	|H/W (ELM)	|
+---------------------------------------+---------------+---------------+
|OMAP_ECC_BCH8_CODE_HW_DETECTION_SW	|H/W (GPMC)	|S/W (lib/bch.h)|
|OMAP_ECC_BCH8_CODE_HW			|H/W (GPMC)	|H/W (ELM)	|
+---------------------------------------+---------------+---------------+
- Selection of OMAP_ECC_BCHx_CODE_HW_DETECTION_SW requires,
	Kconfig: CONFIG_MTD_NAND_ECC_BCH: enables S/W based BCH ECC algorithm.

- Selection of OMAP_ECC_BCHx_CODE_HW requires,
	Kconfig: CONFIG_MTD_NAND_OMAP_BCH: enables ELM H/W module.


Gupta, Pekon (4):
  mtd:nand:omap2: clean-up BCHx_HW and BCHx_SW ECC configurations in
    device_probe
  ARM: OMAP2+: cleaned-up DT support of various ECC schemes
  mtd:nand:omap2: updated support for BCH4 ECC scheme
  ARM: OMAP2+: updated ECC scheme attributes for omap2-nand DT

 .../devicetree/bindings/mtd/gpmc-nand.txt          |  52 ++-
 arch/arm/boot/dts/am335x-evm.dts                   |   2 +-
 arch/arm/mach-omap2/gpmc.c                         |  17 +-
 drivers/mtd/nand/Kconfig                           |   1 -
 drivers/mtd/nand/omap2.c                           | 413 +++++++++------------
 include/linux/platform_data/elm.h                  |   4 +
 include/linux/platform_data/mtd-nand-omap2.h       |  22 +-
 7 files changed, 253 insertions(+), 258 deletions(-)

-- 
1.8.1