130 /* ----------------------- oob helpers -------------------------------------- */
151 static int sm_read_lba(struct sm_oob *oob)  in sm_read_lba()  argument
160 	if (!memcmp(oob, erased_pattern, SM_OOB_SIZE))  in sm_read_lba()
164 	lba_test = *(uint16_t *)oob->lba_copy1 ^ *(uint16_t*)oob->lba_copy2;  in sm_read_lba()
169 	lba = sm_get_lba(oob->lba_copy1);  in sm_read_lba()
172 		lba = sm_get_lba(oob->lba_copy2);  in sm_read_lba()
177 static void sm_write_lba(struct sm_oob *oob, uint16_t lba)  in sm_write_lba()  argument
189 	oob->lba_copy1[0] = oob->lba_copy2[0] = tmp[0];  in sm_write_lba()
190 	oob->lba_copy1[1] = oob->lba_copy2[1] = tmp[1];  in sm_write_lba()
220 static int sm_correct_sector(uint8_t *buffer, struct sm_oob *oob)  in sm_correct_sector()  argument
225 	if (__nand_correct_data(buffer, ecc, oob->ecc1, SM_SMALL_PAGE) < 0)  in sm_correct_sector()
231 	if (__nand_correct_data(buffer, ecc, oob->ecc2, SM_SMALL_PAGE) < 0)  in sm_correct_sector()
236 /* Reads a sector + oob*/
239 			  uint8_t *buffer, struct sm_oob *oob)  in sm_read_sector()  argument
253 	/* User might not need the oob, but we do for data verification */  in sm_read_sector()
254 	if (!oob)  in sm_read_sector()
255 		oob = &tmp_oob;  in sm_read_sector()
260 	ops.oobbuf = (void *)oob;  in sm_read_sector()
277 	/* Unfortunately, oob read will _always_ succeed,  in sm_read_sector()
288 	/* Do a basic test on the oob, to guard against returned garbage */  in sm_read_sector()
289 	if (oob->reserved != 0xFFFFFFFF && !is_power_of_2(~oob->reserved))  in sm_read_sector()
300 	if (!sm_sector_valid(oob)) {  in sm_read_sector()
308 		(ftl->smallpagenand && sm_correct_sector(buffer, oob))) {  in sm_read_sector()
321 			   uint8_t *buffer, struct sm_oob *oob)  in sm_write_sector()  argument
342 	ops.oobbuf = (void *)oob;  in sm_write_sector()
370 	struct sm_oob oob;  in sm_write_block()  local
374 	/* Initialize the oob with requested values */  in sm_write_block()
375 	memset(&oob, 0xFF, SM_OOB_SIZE);  in sm_write_block()
376 	sm_write_lba(&oob, lba);  in sm_write_block()
384 		oob.data_status = 0xFF;  in sm_write_block()
392 			oob.data_status = 0;  in sm_write_block()
397 						SM_SMALL_PAGE, oob.ecc1);  in sm_write_block()
400 						SM_SMALL_PAGE, oob.ecc2);  in sm_write_block()
403 							buf + boffset, &oob))  in sm_write_block()
431 	struct sm_oob oob;  in sm_mark_block_bad()  local
434 	memset(&oob, 0xFF, SM_OOB_SIZE);  in sm_mark_block_bad()
435 	oob.block_status = 0xF0;  in sm_mark_block_bad()
449 		sm_write_sector(ftl, zone, block, boffset, NULL, &oob);  in sm_mark_block_bad()
496 	struct sm_oob oob;  in sm_check_block()  local
509 		if (sm_read_sector(ftl, zone, block, boffset, NULL, &oob))  in sm_check_block()
512 		test_lba = sm_read_lba(&oob);  in sm_check_block()
614 	/* Test for proper write,erase and oob sizes */  in sm_get_media_info()
627 	/* We use OOB */  in sm_get_media_info()
651 	struct sm_oob oob;  in sm_read_cis()  local
654 		0, ftl->cis_block, ftl->cis_boffset, ftl->cis_buffer, &oob))  in sm_read_cis()
657 	if (!sm_sector_valid(&oob) || !sm_block_valid(&oob))  in sm_read_cis()
671 	struct sm_oob oob;  in sm_find_cis()  local
679 		if (sm_read_sector(ftl, 0, block, 0, NULL, &oob))  in sm_find_cis()
682 		if (!sm_block_valid(&oob))  in sm_find_cis()
695 		if (sm_read_sector(ftl, 0, block, boffset, NULL, &oob))  in sm_find_cis()
698 		if (!sm_sector_valid(&oob))  in sm_find_cis()
744 	struct sm_oob oob;  in sm_init_zone()  local
773 		/* Read the oob of first sector */  in sm_init_zone()
774 		if (sm_read_sector(ftl, zone_num, block, 0, NULL, &oob))  in sm_init_zone()
779 		if (sm_block_erased(&oob)) {  in sm_init_zone()
789 		if (!sm_block_valid(&oob)) {  in sm_init_zone()
795 		lba = sm_read_lba(&oob);  in sm_init_zone()