19 		struct nand_info *nand);
21 static int nand_wait(struct nand_info *nand)  in nand_wait()  argument
31 		neesr = read_reg(nand, NAND_EVTER_STAT);  in nand_wait()
33 			write_reg(nand, NAND_EVTER_STAT, neesr);  in nand_wait()
63 static uint32_t nand_get_port_size(struct nand_info *nand)  in nand_get_port_size()  argument
71 	port_size = (read_reg(nand, cs_reg) & CSPR_PS) >> CSPR_PS_SHIFT;  in nand_get_port_size()
89 static uint32_t nand_get_page_size(struct nand_info *nand)  in nand_get_page_size()  argument
97 	pg_size = read_reg(nand, cs_reg) & CSOR_NAND_PGS;  in nand_get_page_size()
118 static uint32_t nand_get_pages_per_blk(struct nand_info *nand)  in nand_get_pages_per_blk()  argument
126 	pages_per_blk = (read_reg(nand, cs_reg) & CSOR_NAND_PB);  in nand_get_pages_per_blk()
178 static void nand_get_params(struct nand_info *nand)  in nand_get_params()  argument
180 	nand->port_size = nand_get_port_size(nand);  in nand_get_params()
182 	nand->page_size = nand_get_page_size(nand);  in nand_get_params()
190 	nand->bad_marker_loc = (nand->page_size == 512) ?  in nand_get_params()
191 				((nand->port_size == 8) ? 0x5 : 0xa) : 0;  in nand_get_params()
194 	nand->onfi_dev_flag =  in nand_get_params()
195 	   (read_reg(nand, NAND_EVTER_STAT) & NAND_EVTER_STAT_BBI_SRCH_SEL)  in nand_get_params()
199 	nand->bbs = 0;  in nand_get_params()
202 	nand->ppb = nand_get_pages_per_blk(nand);  in nand_get_params()
205 	nand->blk_size = nand->page_size * nand->ppb;  in nand_get_params()
208 	nand->pi_width = get_page_index_width(nand->ppb);  in nand_get_params()
211 	nand->lgb = 0;  in nand_get_params()
212 	nand->bbt_max = 0;  in nand_get_params()
213 	nand->bzero_good = 0;  in nand_get_params()
214 	memset(nand->bbt, EMPTY_VAL, BBT_SIZE * sizeof(nand->bbt[0]));  in nand_get_params()
217 static int nand_init(struct nand_info *nand)  in nand_init()  argument
222 	nand_get_params(nand);  in nand_init()
225 	write_reg(nand, NAND_EVTER_STAT, U(0xffffffff));  in nand_init()
231 	ncfgr = read_reg(nand, NCFGR);  in nand_init()
232 	write_reg(nand, NCFGR, (ncfgr & ~NCFGR_BOOT));  in nand_init()
244 		struct nand_info *nand)  in nand_read_data()  argument
255 	write_reg(nand, NAND_BC, byte_cnt);  in nand_read_data()
257 	write_reg(nand, ROW0, row_add);  in nand_read_data()
258 	write_reg(nand, COL0, col_val);  in nand_read_data()
261 	if (nand->page_size == U(512)) {  in nand_read_data()
264 			write_reg(nand, NAND_FCR0,  in nand_read_data()
267 			write_reg(nand, NAND_FCR0,  in nand_read_data()
270 			write_reg(nand, NAND_FCR0,  in nand_read_data()
276 		write_reg(nand, NAND_FCR0, (NAND_CMD_READ0 << FCR_CMD0_SHIFT) |  in nand_read_data()
279 	if (nand->page_size == U(512)) {  in nand_read_data()
280 		write_reg(nand, NAND_FIR0, ((FIR_OP_CW0 << FIR_OP0_SHIFT) |  in nand_read_data()
285 		write_reg(nand, NAND_FIR1, U(0x00000000));  in nand_read_data()
287 		write_reg(nand, NAND_FIR0, ((FIR_OP_CW0 << FIR_OP0_SHIFT) |  in nand_read_data()
293 		write_reg(nand, NAND_FIR1, (FIR_OP_NOP << FIR_OP5_SHIFT));  in nand_read_data()
295 	write_reg(nand, NANDSEQ_STRT, NAND_SEQ_STRT_FIR_STRT);  in nand_read_data()
297 	ret = nand_wait(nand);  in nand_read_data()
305 	if (nand->page_size == U(512))  in nand_read_data()
307 	else if (nand->page_size == U(2048))  in nand_read_data()
309 	else if (nand->page_size == U(4096))  in nand_read_data()
311 	else if (nand->page_size == U(8192))  in nand_read_data()
313 	else if (nand->page_size == U(16384))  in nand_read_data()
328 				 (col_add + nand->page_size);  in nand_read_data()
333 			nand->page_size);  in nand_read_data()
340 static int nand_read(struct nand_info *nand, int32_t src_addr,  in nand_read()  argument
359 		log_blk = (src_addr / nand->blk_size);  in nand_read()
360 		pg_no = ((src_addr - (log_blk * nand->blk_size)) /  in nand_read()
361 					 nand->page_size);  in nand_read()
365 		for (i = 0; i <= nand->bbt_max; i++) {  in nand_read()
366 			if (nand->bbt[i] == EMPTY_VAL_CHECK) {  in nand_read()
367 				ret = update_bbt(i, pblk, &updated, nand);  in nand_read()
379 			if (pblk < nand->bbt[i])  in nand_read()
381 			else if (pblk >= nand->bbt[i])  in nand_read()
385 		col_off = (src_addr % nand->page_size);  in nand_read()
387 			if ((col_off + size) < nand->page_size)  in nand_read()
390 				byte_cnt = nand->page_size - col_off;  in nand_read()
392 			row_off = (pblk << nand->pi_width) | pg_no;  in nand_read()
395 					nand->ifc_region_addr,  in nand_read()
398 					byte_cnt, out, MAIN, nand);  in nand_read()
408 			if (size < nand->page_size) {  in nand_read()
412 				byte_cnt = nand->page_size;  in nand_read()
415 			row_off = (pblk << nand->pi_width) | pg_no;  in nand_read()
418 					nand->ifc_region_addr,  in nand_read()
421 					read_cnt, out, MAIN, nand);  in nand_read()
435 static int isgoodblock(uint32_t blk, uint32_t *gb, struct nand_info *nand)  in isgoodblock()  argument
445 			nand->ifc_region_addr,  in isgoodblock()
446 			blk << nand->pi_width,  in isgoodblock()
447 			nand->bad_marker_loc,  in isgoodblock()
448 			0x2, buf, 1, nand);  in isgoodblock()
456 	row_add = (blk << nand->pi_width);  in isgoodblock()
457 	if (nand->port_size == 8) {  in isgoodblock()
462 			if (nand->onfi_dev_flag)  in isgoodblock()
464 						nand->ifc_region_addr,  in isgoodblock()
465 						row_add | (nand->ppb - 1),  in isgoodblock()
466 						nand->bad_marker_loc,  in isgoodblock()
467 						0x2, buf, SPARE, nand);  in isgoodblock()
470 						nand->ifc_region_addr,  in isgoodblock()
472 						nand->bad_marker_loc,  in isgoodblock()
473 						0x2, buf, SPARE, nand);  in isgoodblock()
492 			if (nand->onfi_dev_flag) {  in isgoodblock()
494 						nand->ifc_region_addr,  in isgoodblock()
495 						row_add | (nand->ppb - 1),  in isgoodblock()
496 						nand->bad_marker_loc,  in isgoodblock()
497 						0x2, buf, SPARE, nand);  in isgoodblock()
500 						nand->ifc_region_addr,  in isgoodblock()
502 						nand->bad_marker_loc,  in isgoodblock()
503 						0x2, buf, SPARE, nand);  in isgoodblock()
524 			   uint32_t *updated,  struct nand_info *nand)  in update_bbt()  argument
530 	if (nand->bzero_good && blk == 0)  in update_bbt()
535 	if (nand->lgb != 0 && blk <= nand->lgb)  in update_bbt()
544 	if (nand->lgb < blk)  in update_bbt()
545 		sblk = nand->lgb;  in update_bbt()
551 	lgb = nand->lgb;  in update_bbt()
558 			ret =  isgoodblock(lgb, &gb, nand);  in update_bbt()
564 				nand->bzero_good = 1;  in update_bbt()
572 				nand->bbt[idx] = lgb;  in update_bbt()
576 				if (idx > nand->bbt_max)  in update_bbt()
577 					nand->bbt_max = idx;  in update_bbt()
584 			nand->lgb =  blk;  in update_bbt()
598 	struct nand_info *nand = &nand_drv_data;  in ifc_nand_read()  local
600 	page_size = nand_get_page_size(nand);  in ifc_nand_read()
602 	ret = nand_read(nand, src_addr, buf, size);  in ifc_nand_read()
628 	struct nand_info *nand = NULL;  in ifc_nand_init()  local
631 	nand = &nand_drv_data;  in ifc_nand_init()
632 	memset(nand, 0, sizeof(struct nand_info));  in ifc_nand_init()
634 	nand->ifc_region_addr = ifc_region_addr;  in ifc_nand_init()
635 	nand->ifc_register_addr = ifc_register_addr;  in ifc_nand_init()
638 	ret = nand_init(nand);  in ifc_nand_init()
647 	ifc_nand_spec.block_size = nand_get_page_size(nand);  in ifc_nand_init()