39  * and override command or ECC setup according to flash type.
153  * Constants for Hardware ECC
155 /* Reset Hardware ECC for read */
157 /* Reset Hardware ECC for write */
159 /* Enable Hardware ECC before syndrome is read back from flash */
164  * ecc.correct() returns -EBADMSG.
356 /* Extended ECC information Block Definition (since ONFI 2.1) */
367 #define ONFI_SECTION_TYPE_2	2	/* for ECC information. */
471 	/* ECC and endurance block */
489 …* struct nand_hw_control - Control structure for hardware controller (e.g ECC generator) shared am…
502  * struct nand_ecc_step_info - ECC step information of ECC engine
503  * @stepsize: data bytes per ECC step
514  * struct nand_ecc_caps - capability of ECC engine
515  * @stepinfos: array of ECC step information
516  * @nstepinfos: number of ECC step information
517  * @calc_ecc_bytes: driver's hook to calculate ECC bytes per step
525 /* a shorthand to generate struct nand_ecc_caps with only one ECC stepsize */
540  * struct nand_ecc_ctrl - Control structure for ECC
541  * @mode:	ECC mode
542  * @algo:	ECC algorithm
543  * @steps:	number of ECC steps per page
544  * @size:	data bytes per ECC step
545  * @bytes:	ECC bytes per step
546  * @strength:	max number of correctible bits per ECC step
547  * @total:	total number of ECC bytes per page
548  * @prepad:	padding information for syndrome based ECC generators
549  * @postpad:	padding information for syndrome based ECC generators
550  * @options:	ECC specific options (see NAND_ECC_XXX flags defined above)
551  * @layout:	ECC layout control struct pointer
552  * @priv:	pointer to private ECC control data
553  * @hwctl:	function to control hardware ECC generator. Must only
554  *		be provided if an hardware ECC is available
555  * @calculate:	function for ECC calculation or readback from ECC hardware
556  * @correct:	function for ECC correction, matching to ECC generator (sw/hw).
559  *		ECC strength, or any other error code if the error is not
563  * @read_page_raw:	function to read a raw page without ECC. This function
564  *			should hide the specific layout used by the ECC
570  * @write_page_raw:	function to write a raw page without ECC. This function
571  *			should hide the specific layout used by the ECC
573  *			in-band and out-of-band data. ECC controller is
578  * @read_page:	function to read a page according to the ECC generator
580  *		any single ECC step, 0 if bitflips uncorrectable, -EIO hw error
581  * @read_subpage:	function to read parts of the page covered by ECC;
583  * @write_subpage:	function to write parts of the page covered by ECC.
584  * @write_page:	function to write a page according to the ECC generator
586  * @write_oob_raw:	function to write chip OOB data without ECC
587  * @read_oob_raw:	function to read chip OOB data without ECC
631 static inline int nand_standard_page_accessors(struct nand_ecc_ctrl *ecc)  in nand_standard_page_accessors()  argument
633 	return !(ecc->options & NAND_ECC_CUSTOM_PAGE_ACCESS);  in nand_standard_page_accessors()
638  * @ecccalc:	buffer pointer for calculated ECC, size is oobsize.
639  * @ecccode:	buffer pointer for ECC read from flash, size is oobsize.
806  * @ecc:		[BOARDSPECIFIC] ECC control structure
834  * @ecc_strength_ds:	[INTERN] ECC correctability from the datasheet.
837  * @ecc_step_ds:	[INTERN] ECC step required by the @ecc_strength_ds,
838  *                      also from the datasheet. It is the recommended ECC step
950 	struct nand_ecc_ctrl ecc;  member
1030 #define NAND_ECC_STRENGTH(type)		((type)->ecc.strength_ds)
1031 #define NAND_ECC_STEP(type)		((type)->ecc.step_ds)
1050  * @ecc: ECC correctability and step information from the datasheet.
1051  * @ecc.strength_ds: The ECC correctability from the datasheet, same as the
1053  * @ecc.step_ds: The ECC step required by the @ecc.strength_ds, same as the
1055  *               For example, the "4bit ECC for each 512Byte" can be set with
1080 	} ecc;  member
1268 				void *ecc, int ecclen,