28  *	1024 * n data + m Bytes oob
30  *	First byte of oob(spare).
83 #define NFC_SYS_DATA_SIZE		(4) /* 4 bytes sys data in oob pre 1024 data.*/
537 		 * The first four bytes of OOB are reserved for the  in rk_nfc_write_page_raw()
540 		 * in OOB also need to be written back.  in rk_nfc_write_page_raw()
549 		 * The OOB data layout on the NFC is:  in rk_nfc_write_page_raw()
601 	u8 *oob;  in rk_nfc_write_page_hwecc()  local
612 	 * by the boot ROM and the first 32 bits of OOB need to link to  in rk_nfc_write_page_hwecc()
614 	 * OOB data from the MTD framework, because this page address  in rk_nfc_write_page_hwecc()
616 	 * so we shift all OOB data including the BBM with 4 byte positions.  in rk_nfc_write_page_hwecc()
617 	 * As a consequence the OOB size available to the MTD framework is  in rk_nfc_write_page_hwecc()
640 			oob = chip->oob_poi + (i - 1) * NFC_SYS_DATA_SIZE;  in rk_nfc_write_page_hwecc()
641 			reg = oob[0] | oob[1] << 8 | oob[2] << 16 |  in rk_nfc_write_page_hwecc()
642 			      oob[3] << 24;  in rk_nfc_write_page_hwecc()
721 		 * The first four bytes of OOB are reserved for the  in rk_nfc_read_page_raw()
764 	u8 *oob;  in rk_nfc_read_page_hwecc()  local
815 		oob = chip->oob_poi + (i - 1) * NFC_SYS_DATA_SIZE;  in rk_nfc_read_page_hwecc()
820 		*oob++ = (u8)tmp;  in rk_nfc_read_page_hwecc()
821 		*oob++ = (u8)(tmp >> 8);  in rk_nfc_read_page_hwecc()
822 		*oob++ = (u8)(tmp >> 16);  in rk_nfc_read_page_hwecc()
823 		*oob++ = (u8)(tmp >> 24);  in rk_nfc_read_page_hwecc()
937 	 * The beginning of the OOB area stores the reserved data for the NFC,  in rk_nfc_ooblayout_free()
984 		 * blocks. The first 4 OOB bytes are reserved for sys data.  in rk_nfc_ecc_init()