Lines Matching +full:ctrl +full:- +full:len
1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright 2011-2012 Freescale Semiconductor, Inc
31 struct fsl_ifc_ctrl *ctrl; member
50 unsigned int eccread; /* Non zero for a full-page ECC read */
66 .offs = 2, /* 0 on 8-bit small page */
67 .len = 4,
76 .offs = 2, /* 0 on 8-bit small page */
77 .len = 4,
89 return -ERANGE; in fsl_ifc_ooblayout_ecc()
91 oobregion->offset = 8; in fsl_ifc_ooblayout_ecc()
92 oobregion->length = chip->ecc.total; in fsl_ifc_ooblayout_ecc()
103 return -ERANGE; in fsl_ifc_ooblayout_free()
105 if (mtd->writesize == 512 && in fsl_ifc_ooblayout_free()
106 !(chip->options & NAND_BUSWIDTH_16)) { in fsl_ifc_ooblayout_free()
108 oobregion->offset = 0; in fsl_ifc_ooblayout_free()
109 oobregion->length = 5; in fsl_ifc_ooblayout_free()
111 oobregion->offset = 6; in fsl_ifc_ooblayout_free()
112 oobregion->length = 2; in fsl_ifc_ooblayout_free()
119 oobregion->offset = 2; in fsl_ifc_ooblayout_free()
120 oobregion->length = 6; in fsl_ifc_ooblayout_free()
122 oobregion->offset = chip->ecc.total + 8; in fsl_ifc_ooblayout_free()
123 oobregion->length = mtd->oobsize - oobregion->offset; in fsl_ifc_ooblayout_free()
142 struct fsl_ifc_ctrl *ctrl = priv->ctrl; in set_addr() local
143 struct fsl_ifc_runtime __iomem *ifc = ctrl->rregs; in set_addr()
146 ifc_nand_ctrl->page = page_addr; in set_addr()
148 ifc_out32(page_addr, &ifc->ifc_nand.row0); in set_addr()
149 ifc_out32((oob ? IFC_NAND_COL_MS : 0) | column, &ifc->ifc_nand.col0); in set_addr()
151 buf_num = page_addr & priv->bufnum_mask; in set_addr()
153 ifc_nand_ctrl->addr = priv->vbase + buf_num * (mtd->writesize * 2); in set_addr()
154 ifc_nand_ctrl->index = column; in set_addr()
158 ifc_nand_ctrl->index += mtd->writesize; in set_addr()
162 static int check_read_ecc(struct mtd_info *mtd, struct fsl_ifc_ctrl *ctrl, in check_read_ecc() argument
165 return (eccstat >> ((3 - bufnum % 4) * 8)) & 15; in check_read_ecc()
175 struct fsl_ifc_ctrl *ctrl = priv->ctrl; in fsl_ifc_run_command() local
177 struct fsl_ifc_runtime __iomem *ifc = ctrl->rregs; in fsl_ifc_run_command()
182 ifc_out32(priv->bank << IFC_NAND_CSEL_SHIFT, in fsl_ifc_run_command()
183 &ifc->ifc_nand.nand_csel); in fsl_ifc_run_command()
185 dev_vdbg(priv->dev, in fsl_ifc_run_command()
188 ifc_in32(&ifc->ifc_nand.nand_fir0), in fsl_ifc_run_command()
189 ifc_in32(&ifc->ifc_nand.nand_fcr0)); in fsl_ifc_run_command()
191 ctrl->nand_stat = 0; in fsl_ifc_run_command()
194 ifc_out32(IFC_NAND_SEQ_STRT_FIR_STRT, &ifc->ifc_nand.nandseq_strt); in fsl_ifc_run_command()
197 wait_event_timeout(ctrl->nand_wait, ctrl->nand_stat, in fsl_ifc_run_command()
200 /* ctrl->nand_stat will be updated from IRQ context */ in fsl_ifc_run_command()
201 if (!ctrl->nand_stat) in fsl_ifc_run_command()
202 dev_err(priv->dev, "Controller is not responding\n"); in fsl_ifc_run_command()
203 if (ctrl->nand_stat & IFC_NAND_EVTER_STAT_FTOER) in fsl_ifc_run_command()
204 dev_err(priv->dev, "NAND Flash Timeout Error\n"); in fsl_ifc_run_command()
205 if (ctrl->nand_stat & IFC_NAND_EVTER_STAT_WPER) in fsl_ifc_run_command()
206 dev_err(priv->dev, "NAND Flash Write Protect Error\n"); in fsl_ifc_run_command()
208 nctrl->max_bitflips = 0; in fsl_ifc_run_command()
210 if (nctrl->eccread) { in fsl_ifc_run_command()
212 int bufnum = nctrl->page & priv->bufnum_mask; in fsl_ifc_run_command()
213 int sector_start = bufnum * chip->ecc.steps; in fsl_ifc_run_command()
214 int sector_end = sector_start + chip->ecc.steps - 1; in fsl_ifc_run_command()
217 eccstat_regs = ifc->ifc_nand.nand_eccstat; in fsl_ifc_run_command()
224 errors = check_read_ecc(mtd, ctrl, eccstat, i); in fsl_ifc_run_command()
232 * erratum IFC-A002770 -- so report it now if we in fsl_ifc_run_command()
235 ctrl->nand_stat |= IFC_NAND_EVTER_STAT_ECCER; in fsl_ifc_run_command()
239 mtd->ecc_stats.corrected += errors; in fsl_ifc_run_command()
240 nctrl->max_bitflips = max_t(unsigned int, in fsl_ifc_run_command()
241 nctrl->max_bitflips, in fsl_ifc_run_command()
245 nctrl->eccread = 0; in fsl_ifc_run_command()
254 struct fsl_ifc_ctrl *ctrl = priv->ctrl; in fsl_ifc_do_read() local
255 struct fsl_ifc_runtime __iomem *ifc = ctrl->rregs; in fsl_ifc_do_read()
258 if (mtd->writesize > 512) { in fsl_ifc_do_read()
264 &ifc->ifc_nand.nand_fir0); in fsl_ifc_do_read()
265 ifc_out32(0x0, &ifc->ifc_nand.nand_fir1); in fsl_ifc_do_read()
269 &ifc->ifc_nand.nand_fcr0); in fsl_ifc_do_read()
275 &ifc->ifc_nand.nand_fir0); in fsl_ifc_do_read()
276 ifc_out32(0x0, &ifc->ifc_nand.nand_fir1); in fsl_ifc_do_read()
281 &ifc->ifc_nand.nand_fcr0); in fsl_ifc_do_read()
285 &ifc->ifc_nand.nand_fcr0); in fsl_ifc_do_read()
294 struct fsl_ifc_ctrl *ctrl = priv->ctrl; in fsl_ifc_cmdfunc() local
295 struct fsl_ifc_runtime __iomem *ifc = ctrl->rregs; in fsl_ifc_cmdfunc()
298 ifc_nand_ctrl->read_bytes = 0; in fsl_ifc_cmdfunc()
300 ifc_nand_ctrl->index = 0; in fsl_ifc_cmdfunc()
305 ifc_out32(0, &ifc->ifc_nand.nand_fbcr); in fsl_ifc_cmdfunc()
308 ifc_nand_ctrl->read_bytes = mtd->writesize + mtd->oobsize; in fsl_ifc_cmdfunc()
309 ifc_nand_ctrl->index += column; in fsl_ifc_cmdfunc()
311 if (chip->ecc.engine_type == NAND_ECC_ENGINE_TYPE_ON_HOST) in fsl_ifc_cmdfunc()
312 ifc_nand_ctrl->eccread = 1; in fsl_ifc_cmdfunc()
320 ifc_out32(mtd->oobsize - column, &ifc->ifc_nand.nand_fbcr); in fsl_ifc_cmdfunc()
323 ifc_nand_ctrl->read_bytes = mtd->writesize + mtd->oobsize; in fsl_ifc_cmdfunc()
334 * For PARAM, read all 3 copies of 256-bytes pages. in fsl_ifc_cmdfunc()
336 int len = 8; in fsl_ifc_cmdfunc() local
340 len = 256 * 3; in fsl_ifc_cmdfunc()
346 &ifc->ifc_nand.nand_fir0); in fsl_ifc_cmdfunc()
348 &ifc->ifc_nand.nand_fcr0); in fsl_ifc_cmdfunc()
349 ifc_out32(column, &ifc->ifc_nand.row3); in fsl_ifc_cmdfunc()
351 ifc_out32(len, &ifc->ifc_nand.nand_fbcr); in fsl_ifc_cmdfunc()
352 ifc_nand_ctrl->read_bytes = len; in fsl_ifc_cmdfunc()
369 &ifc->ifc_nand.nand_fir0); in fsl_ifc_cmdfunc()
373 &ifc->ifc_nand.nand_fcr0); in fsl_ifc_cmdfunc()
375 ifc_out32(0, &ifc->ifc_nand.nand_fbcr); in fsl_ifc_cmdfunc()
376 ifc_nand_ctrl->read_bytes = 0; in fsl_ifc_cmdfunc()
383 ifc_nand_ctrl->column = column; in fsl_ifc_cmdfunc()
384 ifc_nand_ctrl->oob = 0; in fsl_ifc_cmdfunc()
386 if (mtd->writesize > 512) { in fsl_ifc_cmdfunc()
398 &ifc->ifc_nand.nand_fir0); in fsl_ifc_cmdfunc()
403 &ifc->ifc_nand.nand_fir1); in fsl_ifc_cmdfunc()
418 &ifc->ifc_nand.nand_fir0); in fsl_ifc_cmdfunc()
424 &ifc->ifc_nand.nand_fir1); in fsl_ifc_cmdfunc()
426 if (column >= mtd->writesize) in fsl_ifc_cmdfunc()
434 if (column >= mtd->writesize) { in fsl_ifc_cmdfunc()
435 /* OOB area --> READOOB */ in fsl_ifc_cmdfunc()
436 column -= mtd->writesize; in fsl_ifc_cmdfunc()
437 ifc_nand_ctrl->oob = 1; in fsl_ifc_cmdfunc()
439 ifc_out32(nand_fcr0, &ifc->ifc_nand.nand_fcr0); in fsl_ifc_cmdfunc()
440 set_addr(mtd, column, page_addr, ifc_nand_ctrl->oob); in fsl_ifc_cmdfunc()
446 if (ifc_nand_ctrl->oob) { in fsl_ifc_cmdfunc()
447 ifc_out32(ifc_nand_ctrl->index - in fsl_ifc_cmdfunc()
448 ifc_nand_ctrl->column, in fsl_ifc_cmdfunc()
449 &ifc->ifc_nand.nand_fbcr); in fsl_ifc_cmdfunc()
451 ifc_out32(0, &ifc->ifc_nand.nand_fbcr); in fsl_ifc_cmdfunc()
463 &ifc->ifc_nand.nand_fir0); in fsl_ifc_cmdfunc()
465 &ifc->ifc_nand.nand_fcr0); in fsl_ifc_cmdfunc()
466 ifc_out32(1, &ifc->ifc_nand.nand_fbcr); in fsl_ifc_cmdfunc()
468 ifc_nand_ctrl->read_bytes = 1; in fsl_ifc_cmdfunc()
474 * write-protected, even when it is not. in fsl_ifc_cmdfunc()
476 addr = ifc_nand_ctrl->addr; in fsl_ifc_cmdfunc()
477 if (chip->options & NAND_BUSWIDTH_16) in fsl_ifc_cmdfunc()
486 &ifc->ifc_nand.nand_fir0); in fsl_ifc_cmdfunc()
488 &ifc->ifc_nand.nand_fcr0); in fsl_ifc_cmdfunc()
493 dev_err(priv->dev, "%s: error, unsupported command 0x%x.\n", in fsl_ifc_cmdfunc()
508 static void fsl_ifc_write_buf(struct nand_chip *chip, const u8 *buf, int len) in fsl_ifc_write_buf() argument
512 unsigned int bufsize = mtd->writesize + mtd->oobsize; in fsl_ifc_write_buf()
514 if (len <= 0) { in fsl_ifc_write_buf()
515 dev_err(priv->dev, "%s: len %d bytes", __func__, len); in fsl_ifc_write_buf()
519 if ((unsigned int)len > bufsize - ifc_nand_ctrl->index) { in fsl_ifc_write_buf()
520 dev_err(priv->dev, in fsl_ifc_write_buf()
522 __func__, len, bufsize - ifc_nand_ctrl->index); in fsl_ifc_write_buf()
523 len = bufsize - ifc_nand_ctrl->index; in fsl_ifc_write_buf()
526 memcpy_toio(ifc_nand_ctrl->addr + ifc_nand_ctrl->index, buf, len); in fsl_ifc_write_buf()
527 ifc_nand_ctrl->index += len; in fsl_ifc_write_buf()
532 * read function for 8-bit buswidth
543 if (ifc_nand_ctrl->index < ifc_nand_ctrl->read_bytes) { in fsl_ifc_read_byte()
544 offset = ifc_nand_ctrl->index++; in fsl_ifc_read_byte()
545 return ifc_in8(ifc_nand_ctrl->addr + offset); in fsl_ifc_read_byte()
548 dev_err(priv->dev, "%s: beyond end of buffer\n", __func__); in fsl_ifc_read_byte()
554 * read function for 16-bit buswith
565 if (ifc_nand_ctrl->index < ifc_nand_ctrl->read_bytes) { in fsl_ifc_read_byte16()
566 data = ifc_in16(ifc_nand_ctrl->addr + ifc_nand_ctrl->index); in fsl_ifc_read_byte16()
567 ifc_nand_ctrl->index += 2; in fsl_ifc_read_byte16()
571 dev_err(priv->dev, "%s: beyond end of buffer\n", __func__); in fsl_ifc_read_byte16()
578 static void fsl_ifc_read_buf(struct nand_chip *chip, u8 *buf, int len) in fsl_ifc_read_buf() argument
583 if (len < 0) { in fsl_ifc_read_buf()
584 dev_err(priv->dev, "%s: len %d bytes", __func__, len); in fsl_ifc_read_buf()
588 avail = min((unsigned int)len, in fsl_ifc_read_buf()
589 ifc_nand_ctrl->read_bytes - ifc_nand_ctrl->index); in fsl_ifc_read_buf()
590 memcpy_fromio(buf, ifc_nand_ctrl->addr + ifc_nand_ctrl->index, avail); in fsl_ifc_read_buf()
591 ifc_nand_ctrl->index += avail; in fsl_ifc_read_buf()
593 if (len > avail) in fsl_ifc_read_buf()
594 dev_err(priv->dev, in fsl_ifc_read_buf()
596 __func__, len, avail); in fsl_ifc_read_buf()
607 struct fsl_ifc_ctrl *ctrl = priv->ctrl; in fsl_ifc_wait() local
608 struct fsl_ifc_runtime __iomem *ifc = ctrl->rregs; in fsl_ifc_wait()
615 &ifc->ifc_nand.nand_fir0); in fsl_ifc_wait()
617 &ifc->ifc_nand.nand_fcr0); in fsl_ifc_wait()
618 ifc_out32(1, &ifc->ifc_nand.nand_fbcr); in fsl_ifc_wait()
620 ifc_nand_ctrl->read_bytes = 1; in fsl_ifc_wait()
624 nand_fsr = ifc_in32(&ifc->ifc_nand.nand_fsr); in fsl_ifc_wait()
628 * write-protected, even when it is not. in fsl_ifc_wait()
640 u8 *ecc = chip->oob_poi; in check_erased_page()
641 const int ecc_size = chip->ecc.bytes; in check_erased_page()
642 const int pkt_size = chip->ecc.size; in check_erased_page()
649 for (i = 0; i < chip->ecc.steps; ++i) { in check_erased_page()
652 chip->ecc.strength); in check_erased_page()
654 mtd->ecc_stats.failed++; in check_erased_page()
656 mtd->ecc_stats.corrected += res; in check_erased_page()
671 struct fsl_ifc_ctrl *ctrl = priv->ctrl; in fsl_ifc_read_page() local
674 nand_read_page_op(chip, page, 0, buf, mtd->writesize); in fsl_ifc_read_page()
676 fsl_ifc_read_buf(chip, chip->oob_poi, mtd->oobsize); in fsl_ifc_read_page()
678 if (ctrl->nand_stat & IFC_NAND_EVTER_STAT_ECCER) { in fsl_ifc_read_page()
680 fsl_ifc_read_buf(chip, chip->oob_poi, mtd->oobsize); in fsl_ifc_read_page()
685 if (ctrl->nand_stat != IFC_NAND_EVTER_STAT_OPC) in fsl_ifc_read_page()
686 mtd->ecc_stats.failed++; in fsl_ifc_read_page()
688 return nctrl->max_bitflips; in fsl_ifc_read_page()
699 nand_prog_page_begin_op(chip, page, 0, buf, mtd->writesize); in fsl_ifc_write_page()
700 fsl_ifc_write_buf(chip, chip->oob_poi, mtd->oobsize); in fsl_ifc_write_page()
709 struct fsl_ifc_ctrl *ctrl = priv->ctrl; in fsl_ifc_attach_chip() local
710 struct fsl_ifc_global __iomem *ifc_global = ctrl->gregs; in fsl_ifc_attach_chip()
713 csor = ifc_in32(&ifc_global->csor_cs[priv->bank].csor); in fsl_ifc_attach_chip()
717 chip->ecc.engine_type = NAND_ECC_ENGINE_TYPE_ON_HOST; in fsl_ifc_attach_chip()
721 chip->ecc.size = 512; in fsl_ifc_attach_chip()
723 chip->ecc.bytes = 8; in fsl_ifc_attach_chip()
724 chip->ecc.strength = 4; in fsl_ifc_attach_chip()
726 chip->ecc.bytes = 16; in fsl_ifc_attach_chip()
727 chip->ecc.strength = 8; in fsl_ifc_attach_chip()
730 chip->ecc.engine_type = NAND_ECC_ENGINE_TYPE_SOFT; in fsl_ifc_attach_chip()
731 chip->ecc.algo = NAND_ECC_ALGO_HAMMING; in fsl_ifc_attach_chip()
734 dev_dbg(priv->dev, "%s: nand->numchips = %d\n", __func__, in fsl_ifc_attach_chip()
735 nanddev_ntargets(&chip->base)); in fsl_ifc_attach_chip()
736 dev_dbg(priv->dev, "%s: nand->chipsize = %lld\n", __func__, in fsl_ifc_attach_chip()
737 nanddev_target_size(&chip->base)); in fsl_ifc_attach_chip()
738 dev_dbg(priv->dev, "%s: nand->pagemask = %8x\n", __func__, in fsl_ifc_attach_chip()
739 chip->pagemask); in fsl_ifc_attach_chip()
740 dev_dbg(priv->dev, "%s: nand->legacy.chip_delay = %d\n", __func__, in fsl_ifc_attach_chip()
741 chip->legacy.chip_delay); in fsl_ifc_attach_chip()
742 dev_dbg(priv->dev, "%s: nand->badblockpos = %d\n", __func__, in fsl_ifc_attach_chip()
743 chip->badblockpos); in fsl_ifc_attach_chip()
744 dev_dbg(priv->dev, "%s: nand->chip_shift = %d\n", __func__, in fsl_ifc_attach_chip()
745 chip->chip_shift); in fsl_ifc_attach_chip()
746 dev_dbg(priv->dev, "%s: nand->page_shift = %d\n", __func__, in fsl_ifc_attach_chip()
747 chip->page_shift); in fsl_ifc_attach_chip()
748 dev_dbg(priv->dev, "%s: nand->phys_erase_shift = %d\n", __func__, in fsl_ifc_attach_chip()
749 chip->phys_erase_shift); in fsl_ifc_attach_chip()
750 dev_dbg(priv->dev, "%s: nand->ecc.engine_type = %d\n", __func__, in fsl_ifc_attach_chip()
751 chip->ecc.engine_type); in fsl_ifc_attach_chip()
752 dev_dbg(priv->dev, "%s: nand->ecc.steps = %d\n", __func__, in fsl_ifc_attach_chip()
753 chip->ecc.steps); in fsl_ifc_attach_chip()
754 dev_dbg(priv->dev, "%s: nand->ecc.bytes = %d\n", __func__, in fsl_ifc_attach_chip()
755 chip->ecc.bytes); in fsl_ifc_attach_chip()
756 dev_dbg(priv->dev, "%s: nand->ecc.total = %d\n", __func__, in fsl_ifc_attach_chip()
757 chip->ecc.total); in fsl_ifc_attach_chip()
758 dev_dbg(priv->dev, "%s: mtd->ooblayout = %p\n", __func__, in fsl_ifc_attach_chip()
759 mtd->ooblayout); in fsl_ifc_attach_chip()
760 dev_dbg(priv->dev, "%s: mtd->flags = %08x\n", __func__, mtd->flags); in fsl_ifc_attach_chip()
761 dev_dbg(priv->dev, "%s: mtd->size = %lld\n", __func__, mtd->size); in fsl_ifc_attach_chip()
762 dev_dbg(priv->dev, "%s: mtd->erasesize = %d\n", __func__, in fsl_ifc_attach_chip()
763 mtd->erasesize); in fsl_ifc_attach_chip()
764 dev_dbg(priv->dev, "%s: mtd->writesize = %d\n", __func__, in fsl_ifc_attach_chip()
765 mtd->writesize); in fsl_ifc_attach_chip()
766 dev_dbg(priv->dev, "%s: mtd->oobsize = %d\n", __func__, in fsl_ifc_attach_chip()
767 mtd->oobsize); in fsl_ifc_attach_chip()
778 struct fsl_ifc_ctrl *ctrl = priv->ctrl; in fsl_ifc_sram_init() local
779 struct fsl_ifc_runtime __iomem *ifc_runtime = ctrl->rregs; in fsl_ifc_sram_init()
780 struct fsl_ifc_global __iomem *ifc_global = ctrl->gregs; in fsl_ifc_sram_init()
782 uint32_t cs = priv->bank; in fsl_ifc_sram_init()
784 if (ctrl->version < FSL_IFC_VERSION_1_1_0) in fsl_ifc_sram_init()
787 if (ctrl->version > FSL_IFC_VERSION_1_1_0) { in fsl_ifc_sram_init()
792 ncfgr = ifc_in32(&ifc_runtime->ifc_nand.ncfgr); in fsl_ifc_sram_init()
793 ifc_out32(ncfgr | IFC_NAND_NCFGR_SRAM_INIT_EN, &ifc_runtime->ifc_nand.ncfgr); in fsl_ifc_sram_init()
796 ret = readx_poll_timeout(ifc_in32, &ifc_runtime->ifc_nand.ncfgr, in fsl_ifc_sram_init()
800 dev_err(priv->dev, "Failed to initialize SRAM!\n"); in fsl_ifc_sram_init()
806 csor = ifc_in32(&ifc_global->csor_cs[cs].csor); in fsl_ifc_sram_init()
807 csor_ext = ifc_in32(&ifc_global->csor_cs[cs].csor_ext); in fsl_ifc_sram_init()
811 ifc_out32(csor_8k, &ifc_global->csor_cs[cs].csor); in fsl_ifc_sram_init()
812 ifc_out32(0x0000400, &ifc_global->csor_cs[cs].csor_ext); in fsl_ifc_sram_init()
818 &ifc_runtime->ifc_nand.nand_fir0); in fsl_ifc_sram_init()
820 &ifc_runtime->ifc_nand.nand_fcr0); in fsl_ifc_sram_init()
821 ifc_out32(0x0, &ifc_runtime->ifc_nand.row3); in fsl_ifc_sram_init()
823 ifc_out32(0x0, &ifc_runtime->ifc_nand.nand_fbcr); in fsl_ifc_sram_init()
826 ifc_out32(0x0, &ifc_runtime->ifc_nand.row0); in fsl_ifc_sram_init()
827 ifc_out32(0x0, &ifc_runtime->ifc_nand.col0); in fsl_ifc_sram_init()
831 &ifc_runtime->ifc_nand.nand_csel); in fsl_ifc_sram_init()
835 &ifc_runtime->ifc_nand.nandseq_strt); in fsl_ifc_sram_init()
838 wait_event_timeout(ctrl->nand_wait, ctrl->nand_stat, in fsl_ifc_sram_init()
841 if (ctrl->nand_stat != IFC_NAND_EVTER_STAT_OPC) { in fsl_ifc_sram_init()
842 pr_err("fsl-ifc: Failed to Initialise SRAM\n"); in fsl_ifc_sram_init()
843 return -ETIMEDOUT; in fsl_ifc_sram_init()
847 ifc_out32(csor, &ifc_global->csor_cs[cs].csor); in fsl_ifc_sram_init()
848 ifc_out32(csor_ext, &ifc_global->csor_cs[cs].csor_ext); in fsl_ifc_sram_init()
855 struct fsl_ifc_ctrl *ctrl = priv->ctrl; in fsl_ifc_chip_init() local
856 struct fsl_ifc_global __iomem *ifc_global = ctrl->gregs; in fsl_ifc_chip_init()
857 struct fsl_ifc_runtime __iomem *ifc_runtime = ctrl->rregs; in fsl_ifc_chip_init()
858 struct nand_chip *chip = &priv->chip; in fsl_ifc_chip_init()
859 struct mtd_info *mtd = nand_to_mtd(&priv->chip); in fsl_ifc_chip_init()
864 mtd->dev.parent = priv->dev; in fsl_ifc_chip_init()
865 nand_set_flash_node(chip, priv->dev->of_node); in fsl_ifc_chip_init()
869 if ((ifc_in32(&ifc_global->cspr_cs[priv->bank].cspr)) in fsl_ifc_chip_init()
871 chip->legacy.read_byte = fsl_ifc_read_byte16; in fsl_ifc_chip_init()
873 chip->legacy.read_byte = fsl_ifc_read_byte; in fsl_ifc_chip_init()
875 chip->legacy.write_buf = fsl_ifc_write_buf; in fsl_ifc_chip_init()
876 chip->legacy.read_buf = fsl_ifc_read_buf; in fsl_ifc_chip_init()
877 chip->legacy.select_chip = fsl_ifc_select_chip; in fsl_ifc_chip_init()
878 chip->legacy.cmdfunc = fsl_ifc_cmdfunc; in fsl_ifc_chip_init()
879 chip->legacy.waitfunc = fsl_ifc_wait; in fsl_ifc_chip_init()
880 chip->legacy.set_features = nand_get_set_features_notsupp; in fsl_ifc_chip_init()
881 chip->legacy.get_features = nand_get_set_features_notsupp; in fsl_ifc_chip_init()
883 chip->bbt_td = &bbt_main_descr; in fsl_ifc_chip_init()
884 chip->bbt_md = &bbt_mirror_descr; in fsl_ifc_chip_init()
886 ifc_out32(0x0, &ifc_runtime->ifc_nand.ncfgr); in fsl_ifc_chip_init()
889 chip->bbt_options = NAND_BBT_USE_FLASH; in fsl_ifc_chip_init()
890 chip->options = NAND_NO_SUBPAGE_WRITE; in fsl_ifc_chip_init()
892 if (ifc_in32(&ifc_global->cspr_cs[priv->bank].cspr) in fsl_ifc_chip_init()
894 chip->legacy.read_byte = fsl_ifc_read_byte16; in fsl_ifc_chip_init()
895 chip->options |= NAND_BUSWIDTH_16; in fsl_ifc_chip_init()
897 chip->legacy.read_byte = fsl_ifc_read_byte; in fsl_ifc_chip_init()
900 chip->controller = &ifc_nand_ctrl->controller; in fsl_ifc_chip_init()
903 chip->ecc.read_page = fsl_ifc_read_page; in fsl_ifc_chip_init()
904 chip->ecc.write_page = fsl_ifc_write_page; in fsl_ifc_chip_init()
906 csor = ifc_in32(&ifc_global->csor_cs[priv->bank].csor); in fsl_ifc_chip_init()
910 if (!(chip->options & NAND_BUSWIDTH_16)) { in fsl_ifc_chip_init()
916 priv->bufnum_mask = 15; in fsl_ifc_chip_init()
920 priv->bufnum_mask = 3; in fsl_ifc_chip_init()
924 priv->bufnum_mask = 1; in fsl_ifc_chip_init()
928 priv->bufnum_mask = 0; in fsl_ifc_chip_init()
932 dev_err(priv->dev, "bad csor %#x: bad page size\n", csor); in fsl_ifc_chip_init()
933 return -ENODEV; in fsl_ifc_chip_init()
944 if (ctrl->version >= FSL_IFC_VERSION_2_0_0) in fsl_ifc_chip_init()
945 priv->bufnum_mask = (priv->bufnum_mask * 2) + 1; in fsl_ifc_chip_init()
952 struct mtd_info *mtd = nand_to_mtd(&priv->chip); in fsl_ifc_chip_remove()
954 kfree(mtd->name); in fsl_ifc_chip_remove()
956 if (priv->vbase) in fsl_ifc_chip_remove()
957 iounmap(priv->vbase); in fsl_ifc_chip_remove()
959 ifc_nand_ctrl->chips[priv->bank] = NULL; in fsl_ifc_chip_remove()
967 u32 cspr = ifc_in32(&ifc_global->cspr_cs[bank].cspr); in match_bank()
988 struct device_node *node = dev->dev.of_node; in fsl_ifc_nand_probe()
991 if (!fsl_ifc_ctrl_dev || !fsl_ifc_ctrl_dev->rregs) in fsl_ifc_nand_probe()
992 return -ENODEV; in fsl_ifc_nand_probe()
993 ifc = fsl_ifc_ctrl_dev->rregs; in fsl_ifc_nand_probe()
998 dev_err(&dev->dev, "%s: failed to get resource\n", __func__); in fsl_ifc_nand_probe()
1003 for (bank = 0; bank < fsl_ifc_ctrl_dev->banks; bank++) { in fsl_ifc_nand_probe()
1004 if (match_bank(fsl_ifc_ctrl_dev->gregs, bank, res.start)) in fsl_ifc_nand_probe()
1008 if (bank >= fsl_ifc_ctrl_dev->banks) { in fsl_ifc_nand_probe()
1009 dev_err(&dev->dev, "%s: address did not match any chip selects\n", in fsl_ifc_nand_probe()
1011 return -ENODEV; in fsl_ifc_nand_probe()
1014 priv = devm_kzalloc(&dev->dev, sizeof(*priv), GFP_KERNEL); in fsl_ifc_nand_probe()
1016 return -ENOMEM; in fsl_ifc_nand_probe()
1019 if (!fsl_ifc_ctrl_dev->nand) { in fsl_ifc_nand_probe()
1023 return -ENOMEM; in fsl_ifc_nand_probe()
1026 ifc_nand_ctrl->read_bytes = 0; in fsl_ifc_nand_probe()
1027 ifc_nand_ctrl->index = 0; in fsl_ifc_nand_probe()
1028 ifc_nand_ctrl->addr = NULL; in fsl_ifc_nand_probe()
1029 fsl_ifc_ctrl_dev->nand = ifc_nand_ctrl; in fsl_ifc_nand_probe()
1031 nand_controller_init(&ifc_nand_ctrl->controller); in fsl_ifc_nand_probe()
1033 ifc_nand_ctrl = fsl_ifc_ctrl_dev->nand; in fsl_ifc_nand_probe()
1037 ifc_nand_ctrl->chips[bank] = priv; in fsl_ifc_nand_probe()
1038 priv->bank = bank; in fsl_ifc_nand_probe()
1039 priv->ctrl = fsl_ifc_ctrl_dev; in fsl_ifc_nand_probe()
1040 priv->dev = &dev->dev; in fsl_ifc_nand_probe()
1042 priv->vbase = ioremap(res.start, resource_size(&res)); in fsl_ifc_nand_probe()
1043 if (!priv->vbase) { in fsl_ifc_nand_probe()
1044 dev_err(priv->dev, "%s: failed to map chip region\n", __func__); in fsl_ifc_nand_probe()
1045 ret = -ENOMEM; in fsl_ifc_nand_probe()
1049 dev_set_drvdata(priv->dev, priv); in fsl_ifc_nand_probe()
1054 &ifc->ifc_nand.nand_evter_en); in fsl_ifc_nand_probe()
1060 &ifc->ifc_nand.nand_evter_intr_en); in fsl_ifc_nand_probe()
1062 mtd = nand_to_mtd(&priv->chip); in fsl_ifc_nand_probe()
1063 mtd->name = kasprintf(GFP_KERNEL, "%llx.flash", (u64)res.start); in fsl_ifc_nand_probe()
1064 if (!mtd->name) { in fsl_ifc_nand_probe()
1065 ret = -ENOMEM; in fsl_ifc_nand_probe()
1073 priv->chip.controller->ops = &fsl_ifc_controller_ops; in fsl_ifc_nand_probe()
1074 ret = nand_scan(&priv->chip, 1); in fsl_ifc_nand_probe()
1084 dev_info(priv->dev, "IFC NAND device at 0x%llx, bank %d\n", in fsl_ifc_nand_probe()
1085 (unsigned long long)res.start, priv->bank); in fsl_ifc_nand_probe()
1090 nand_cleanup(&priv->chip); in fsl_ifc_nand_probe()
1099 struct fsl_ifc_mtd *priv = dev_get_drvdata(&dev->dev); in fsl_ifc_nand_remove()
1100 struct nand_chip *chip = &priv->chip; in fsl_ifc_nand_remove()
1110 ifc_nand_ctrl->counter--; in fsl_ifc_nand_remove()
1111 if (!ifc_nand_ctrl->counter) { in fsl_ifc_nand_remove()
1112 fsl_ifc_ctrl_dev->nand = NULL; in fsl_ifc_nand_remove()
1122 .compatible = "fsl,ifc-nand",
1130 .name = "fsl,ifc-nand",