*changes in v8*
[PATCH 1/5] incorporated following feedbacks from Scott Wood
<scottw...@freescale.com>
- using symbolic names (enums) as values of CONFIG_NAND_OMAP_ECCSCHEME
- updated omap_select_ecc_scheme(): perform ecc-scheme compatibility
checks before updating nand_chip.ecc fields. This avoids
corrupting of existing ecc-scheme in case of switching failures.
- code clean-up (removed fall-back on omap_select_ecc_scheme() failures)
[PATCH 2/5], [PATCH 3/5], [PATCH 4/5] minor code clean-up
[PATCH 5/5] <no update>
*changes in v7*
[PATCH 1/5]
- omap_gpmc.c: fix: free bytes in OOB (ecclayout->oobfree[0].length)
- omap_gpmc.c: cleanup: redundant code added in previous patch versions
- am335x_evm.h: cleanup: redundant code added in previous patch versions
- tricorder.h: fix: CONFIG_NAND_OMAP_ECCSCHEME
[PATCH 2/5] removed: re-configuration of gpmc.config1[dev_width] added in
previous version of patch
[PATCH 3/5] <no update>
[PATCH 4/5] <no update>
[PATCH 5/5] minor fix: missing '$' in ${loadaddr}
*changes in v6*
[PATCH 1/5] incorporated feedbacks from Scott Wood <scottw...@freescale.com>
- renamed CONFIG_SYS_NAND_ECCSCHEME to CONFIG_NAND_OMAP_ECCSCHEME
- updated omap_select_ecc_scheme() to handle error conditions without
depending on caller.
- renamed OMAP_ECC_HAM1_CODE_HW_ROMCODE to OMAP_ECC_HAM1_CODE_HW
to keep it naming compatible to linux kernel
- updated doc/README.nand and doc/README.omap3
[PATCH 2/5] minor code clean-up
[PATCH 3/5] minor code clean-up
[PATCH 4/5] <no update>
[PATCH 5/5] <moved CONFIG_NAND_OMAP_ECCSCHEME description to README.nand>
*changes in v5*
This version of patch is tested on am335x-evm with x8 NAND device, and boots
SPL and u-boot from NAND
[PATCH 1/5]
- re-added omap_read_page_bch(): needed proper sequence of while reading
DATA and ECC from NAND page, so that calc_ecc generated from GPMC
is understood by ELM.
- added check to see if NAND OOB can accomodate ECC for entire page
[PATCH 2/5] fixed device-width in GPMC_CONFIG1_X to support x16 devices
[PATCH 3/5] code clean-up for OMAP_ECC_BCH8_CODE_HW_DETECTION_SW mode
[PATCH 4/5]
- fixed omap_correct_data_bch() for correcting bit-flips using ELM
- code-cleanup + added omap_reverse_list()
[PATCH 5/5] incorporated feedbacks from Peter Korsgaard <jac...@sunsite.dk>
*changes in v4*
[PATCH 1/5]
- removed omap_read_page_bch(): chip->ecc.read_page uses default API
nand_read_page_hwecc() in nand_base.c
- updated tricorder.h: added new CONFIGS for ECCSCHEME & ONFI_DETECTION
- converted printf("ECC-SCHEME") to debug("ECC-SCHEME")
[PATCH 2/5] minor code clean-up
[PATCH 3/5] <no update>
[PATCH 4/5] <no update>
[PATCH 5/5] updated README as per feedbacks from tr...@ti.com
*changes in v3*
[PATCH 1/5] (complete change)
- ecc-scheme is selection is controller by s/w, not CONFIG_NAND_xx
- added omap_select_ecc_scheme(), as common function to handle all
ecc-scheme related configurations for both board_nand_init() &
omap_nand_switch_ecc().
- removed un-used defines from asm/arch-am33xx/omap_gpmc.h
- updated doc/REAME.nand
[PATCH 2/5] removed un-used defines from asm/omap_gpmc.h
[PATCH 3/5] removed omap_calculate_ecc_bch_sw() and omap_calculate_ecc()
and merged their logic into omap_calculate_ecc_bch()
[PATCH 4/5] updated return error-code in-case of invalid conditions
[PATCH 5/5] (new) for board/ti/am335x/README
*changes in v2*
- added documentation for CONFIG_NAND_OMAP_xx in doc/README.nand
- added CONFIG_BCH along with CONFIG_NAND_OMAP_ECC_BCH8_CODE_HW_DETECTION_SW
to include software library lib/bch.c
- fixed board_nand_init() and omap_enable_hwecc()
*original v1*
This patch series updates BCH8_ECC schemes in mtd/nand/omap_gpmc.c driver
- adds scalability for higher ECC schemes in future.
- removes CONFIG_AM335x and it makes it generic for all platforms.
- optimizes read_data paths
Pekon Gupta (5):
[PATCH 1/5] mtd: nand: omap: enable BCH ECC scheme using ELM for generic
platform
[PATCH 2/5] mtd: nand: omap: optimize chip->ecc.hwctl() for H/W ECC schemes
[PATCH 3/5] mtd: nand: omap: optimize chip->ecc.calculate() for H/W ECC schemes
[PATCH 4/5] mtd: nand: omap: optimized chip->ecc.correct() for H/W ECC schemes
[PATCH 5/5] board/ti/am335x/README: update for NAND boot
arch/arm/include/asm/arch-am33xx/omap_gpmc.h | 52 +-
arch/arm/include/asm/omap_gpmc.h | 7 -
board/ti/am335x/README | 53 +-
doc/README.nand | 38 ++
doc/README.omap3 | 4 +-
drivers/mtd/nand/omap_gpmc.c | 843 +++++++++++----------------
include/configs/am335x_evm.h | 11 +-
include/configs/tricorder.h | 3 +-
8 files changed, 446 insertions(+), 565 deletions(-)
--
1.8.1
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