[U-Boot] [PATCH v5 0/5] mtd: nand: omap: optimize and clean-up of OMAP NAND driver
Pekon Gupta
pekon at ti.com
Fri Sep 6 15:55:08 CEST 2013
*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 <jacmet at 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 trini at 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 | 48 +-
arch/arm/include/asm/omap_gpmc.h | 7 -
board/ti/am335x/README | 59 +-
doc/README.nand | 13 +
drivers/mtd/nand/omap_gpmc.c | 835 +++++++++++----------------
include/configs/am335x_evm.h | 2 +
include/configs/tricorder.h | 2 +
7 files changed, 412 insertions(+), 554 deletions(-)
--
1.8.1
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