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* mtd: nand: omap_elm: use macros for register definitionspekon gupta2014-06-06-3/+6
| | | | | | | | | This patch adds macros for following parameters of ELM Hardware engine - ELM_MAX_CHANNELS: ELM can process 8 data streams simultaneously - ELM_MAX_ERRORS: ELM can detect upto 16 ECC error when using BCH16 scheme Signed-off-by: Pekon Gupta <pekon@ti.com> Reviewed-by: Stefan Roese <sr@denx.de>
* mtd: nand: omap_elm: use bch_type instead of nibble count to differentiate ↵pekon gupta2014-06-06-1/+1
| | | | | | | | | | | | | | | | | | | between BCH4/BCH8/BCH16 ELM hardware engine support ECC error detection for multiple ECC strengths like +------+------------------------+ |Type | ECC syndrome length | +------+------------------------+ |BCH4 | 6.5 bytes = 13 nibbles | |BCH8 | 13 byte = 26 nibbles | |BCH16 | 26 bytes = 52 nibbles | +------+------------------------+ Current implementation of omap_elm driver uses ECC syndrom length (in 'nibbles') to differentiate between BCH4/BCH8/BCH16. This patch replaces it with 'bch_type' Signed-off-by: Pekon Gupta <pekon@ti.com> Reviewed-by: Stefan Roese <sr@denx.de>
* mtd: nand: omap: move omap_elm.h from arch/arm/include/asm to drivers/mtd/nandpekon gupta2014-03-04-0/+77
omap_elm.h is a generic header used by OMAP ELM driver for all TI platfoms. Hence this file should be present in generic folder instead of architecture specific include folder. Build tested using: ./MAKEALL -s am33xx -s omap3 -s omap4 -s omap5 Signed-off-by: Pekon Gupta <pekon@ti.com>