From: Pekon Gupta <pekon@ti.com>
To: tony@atomide.com, artem.bityutskiy@linux.intel.com,
benoit.cousson@linaro.org, olof@lixom.net
Cc: arnd@arndb.de, avinashphilipk@gmail.com, balbi@ti.com,
linux-mtd@lists.infradead.org, linux-omap@vger.kernel.org,
jp.francois@cynove.com, devicetree-discuss@lists.ozlabs.org,
sfr@canb.auug.org.au, Pekon Gupta <pekon@ti.com>
Subject: [PATCH v4 0/4] mtd:nand:omap2: clean-up of supported ECC schemes
Date: Tue, 2 Jul 2013 17:02:33 +0530 [thread overview]
Message-ID: <1372764757-29511-1-git-send-email-pekon@ti.com> (raw)
(+ CC: devicetree-discuss@lists.ozlabs.org)
Changes v3 -> v4
- [Patch 1/3] removed MTD_NAND_OMAP_BCH8 & MTD_NAND_OMAP_BCH4 from nand/Kconfig
ECC scheme selectable via nand DT (nand-ecc-opt).
- [*] rebased for l2-mtd.git
(with Author Name fixed)
Changes v2 -> v3
- PATCH-1: re-arranged code to remove redundancy, added NAND_BUSWIDTH_AUTO
- PATCH-2: updated nand-ecc-opt DT mapping and Documentation
- PATCH-3: code-cleaning + changes to match PATCH-1
- PATCH-4 <DROPPED> update DT attribute for ti,nand-ecc-opt
- received feedback to keep DT mapping independent of linuxism
- PATCH-4:<NEW> : ARM: dts: AM33xx: updated default ECC scheme in nand-ecc-opt
- independent patch for AM335x-evm.dts update based on PATCH-2
Changes v1 -> v2
added [PATCH 3/4] and [PATCH 4/4]
Patches in this series:
[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]: ARM: dts: AM33xx: updated default ECC scheme in 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.
Pekon Gupta (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: dts: AM33xx: updated default ECC scheme in nand-ecc-opt
.../devicetree/bindings/mtd/gpmc-nand.txt | 65 ++-
arch/arm/boot/dts/am335x-evm.dts | 2 +-
arch/arm/mach-omap2/gpmc.c | 14 +-
drivers/mtd/nand/Kconfig | 30 +-
drivers/mtd/nand/omap2.c | 481 ++++++++++-----------
include/linux/platform_data/elm.h | 4 +
include/linux/platform_data/mtd-nand-omap2.h | 22 +-
7 files changed, 308 insertions(+), 310 deletions(-)
--
1.8.1
next reply other threads:[~2013-07-02 11:32 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-02 11:32 Pekon Gupta [this message]
2013-07-02 11:32 ` [PATCH v4 1/4] mtd:nand:omap2: clean-up BCHx_HW and BCHx_SW ECC configurations in device_probe Pekon Gupta
2013-07-02 11:32 ` [PATCH v4 2/4] ARM: OMAP2+: cleaned-up DT support of various ECC schemes Pekon Gupta
2013-07-08 4:37 ` Gupta, Pekon
2013-07-02 11:32 ` [PATCH v4 3/4] mtd:nand:omap2: updated support for BCH4 ECC scheme Pekon Gupta
2013-07-02 11:32 ` [PATCH v4 4/4] ARM: dts: AM33xx: updated default ECC scheme in nand-ecc-opt Pekon Gupta
2013-07-03 13:03 ` [PATCH v4 0/4] mtd:nand:omap2: clean-up of supported ECC schemes Arnd Bergmann
2013-07-03 13:16 ` Gupta, Pekon
2013-07-03 13:26 ` Artem Bityutskiy
2013-07-03 13:27 ` Arnd Bergmann
2013-07-03 18:04 ` Gupta, Pekon
2013-07-04 16:57 ` Mugunthan V N
2013-07-05 4:12 ` Gupta, Pekon
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