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https://github.com/brain-hackers/u-boot-brain
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Merge branch 'master' of git://git.denx.de/u-boot-nand-flash
* 'master' of git://git.denx.de/u-boot-nand-flash: cmd_nand.c: Fix 'nand dump' after latest MTD resync mtd/nand:Fix wrong usage of is_blank() in fsl_ifc_run_command mtd/nand: Fix IFC driver to support 2K NAND page nand: reinstate lazy bad block scanning Revert "nand: make 1-bit software ECC configurable"
This commit is contained in:
Wolfgang Denk
commit
e91004201c
@ -48,7 +48,7 @@ static int nand_dump(nand_info_t *nand, ulong off, int only_oob, int repeat)
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last = off;
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datbuf = malloc(nand->writesize + nand->oobsize);
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datbuf = malloc(nand->writesize);
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oobbuf = malloc(nand->oobsize);
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if (!datbuf || !oobbuf) {
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puts("No memory for page buffer\n");
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@ -59,7 +59,7 @@ static int nand_dump(nand_info_t *nand, ulong off, int only_oob, int repeat)
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struct mtd_oob_ops ops;
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memset(&ops, 0, sizeof(ops));
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ops.datbuf = datbuf;
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ops.oobbuf = oobbuf; /* must exist, but oob data will be appended to ops.datbuf */
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ops.oobbuf = oobbuf;
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ops.len = nand->writesize;
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ops.ooblen = nand->oobsize;
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ops.mode = MTD_OOB_RAW;
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@ -85,6 +85,7 @@ static int nand_dump(nand_info_t *nand, ulong off, int only_oob, int repeat)
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}
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puts("OOB:\n");
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i = nand->oobsize >> 3;
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p = oobbuf;
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while (i--) {
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printf("\t%02x %02x %02x %02x %02x %02x %02x %02x\n",
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p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
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@ -39,7 +39,7 @@ COBJS-y += nand_bbt.o
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COBJS-y += nand_ids.o
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COBJS-y += nand_util.o
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endif
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COBJS-$(CONFIG_MTD_ECC_SOFT) += nand_ecc.o
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COBJS-y += nand_ecc.o
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COBJS-y += nand_base.o
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COBJS-$(CONFIG_NAND_ECC_BCH) += nand_bch.o
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@ -1,6 +1,6 @@
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/* Integrated Flash Controller NAND Machine Driver
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*
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* Copyright (c) 2011 Freescale Semiconductor, Inc
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* Copyright (c) 2012 Freescale Semiconductor, Inc
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*
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* Authors: Dipen Dudhat <Dipen.Dudhat@freescale.com>
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*
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@ -221,24 +221,11 @@ static int check_read_ecc(struct mtd_info *mtd, struct fsl_ifc_ctrl *ctrl,
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u32 *eccstat, unsigned int bufnum)
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{
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u32 reg = eccstat[bufnum / 4];
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int errors = (reg >> ((3 - bufnum % 4) * 8)) & 15;
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int errors;
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if (errors == 15) { /* uncorrectable */
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/* Blank pages fail hw ECC checks */
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if (is_blank(mtd, ctrl, bufnum))
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return 1;
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errors = (reg >> ((3 - bufnum % 4) * 8)) & 15;
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/*
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* We disable ECCER reporting in hardware due to
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* erratum IFC-A002770 -- so report it now if we
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* see an uncorrectable error in ECCSTAT.
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*/
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ctrl->status |= IFC_NAND_EVTER_STAT_ECCER;
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} else if (errors > 0) {
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mtd->ecc_stats.corrected += errors;
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}
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return 0;
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return errors;
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}
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/*
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@ -279,16 +266,33 @@ static int fsl_ifc_run_command(struct mtd_info *mtd)
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printf("%s: Write Protect Error\n", __func__);
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if (ctrl->eccread) {
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int bufperpage = mtd->writesize / 512;
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int bufnum = (ctrl->page & priv->bufnum_mask) * bufperpage;
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int bufnum_end = bufnum + bufperpage - 1;
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int errors;
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int bufnum = ctrl->page & priv->bufnum_mask;
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int sector = bufnum * chip->ecc.steps;
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int sector_end = sector + chip->ecc.steps - 1;
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for (i = bufnum / 4; i <= bufnum_end / 4; i++)
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for (i = sector / 4; i <= sector_end / 4; i++)
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eccstat[i] = in_be32(&ifc->ifc_nand.nand_eccstat[i]);
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for (i = bufnum; i <= bufnum_end; i++) {
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if (check_read_ecc(mtd, ctrl, eccstat, i))
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for (i = sector; i <= sector_end; i++) {
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errors = check_read_ecc(mtd, ctrl, eccstat, i);
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if (errors == 15) {
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/*
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* Uncorrectable error.
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* OK only if the whole page is blank.
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*
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* We disable ECCER reporting due to erratum
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* IFC-A002770 -- so report it now if we
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* see an uncorrectable error in ECCSTAT.
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*/
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if (!is_blank(mtd, ctrl, bufnum))
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ctrl->status |=
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IFC_NAND_EVTER_STAT_ECCER;
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break;
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}
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mtd->ecc_stats.corrected += errors;
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}
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ctrl->eccread = 0;
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@ -448,21 +452,19 @@ static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command,
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out_be32(&ifc->ifc_nand.nand_fir1,
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(IFC_FIR_OP_CW1 << IFC_NAND_FIR1_OP5_SHIFT));
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if (column >= mtd->writesize) {
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/* OOB area --> READOOB */
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column -= mtd->writesize;
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nand_fcr0 |= NAND_CMD_READOOB <<
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IFC_NAND_FCR0_CMD0_SHIFT;
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ctrl->oob = 1;
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} else if (column < 256) {
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/* First 256 bytes --> READ0 */
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nand_fcr0 |= NAND_CMD_READ0 << FCR_CMD0_SHIFT;
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} else {
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/* Second 256 bytes --> READ1 */
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nand_fcr0 |= NAND_CMD_READ1 << FCR_CMD0_SHIFT;
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}
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if (column >= mtd->writesize)
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nand_fcr0 |=
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NAND_CMD_READOOB << IFC_NAND_FCR0_CMD0_SHIFT;
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else
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nand_fcr0 |=
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NAND_CMD_READ0 << IFC_NAND_FCR0_CMD0_SHIFT;
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}
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if (column >= mtd->writesize) {
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/* OOB area --> READOOB */
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column -= mtd->writesize;
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ctrl->oob = 1;
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}
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out_be32(&ifc->ifc_nand.nand_fcr0, nand_fcr0);
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set_addr(mtd, column, page_addr, ctrl->oob);
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return;
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@ -471,7 +473,8 @@ static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command,
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/* PAGEPROG reuses all of the setup from SEQIN and adds the length */
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case NAND_CMD_PAGEPROG:
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if (ctrl->oob)
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out_be32(&ifc->ifc_nand.nand_fbcr, ctrl->index);
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out_be32(&ifc->ifc_nand.nand_fbcr,
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ctrl->index - ctrl->column);
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else
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out_be32(&ifc->ifc_nand.nand_fbcr, 0);
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@ -479,6 +479,11 @@ static int nand_block_checkbad(struct mtd_info *mtd, loff_t ofs, int getchip,
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{
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struct nand_chip *chip = mtd->priv;
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if (!(chip->options & NAND_BBT_SCANNED)) {
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chip->options |= NAND_BBT_SCANNED;
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chip->scan_bbt(mtd);
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}
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if (!chip->bbt)
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return chip->block_bad(mtd, ofs, getchip);
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@ -3028,10 +3033,6 @@ int nand_scan_tail(struct mtd_info *mtd)
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chip->ecc.mode = NAND_ECC_SOFT;
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case NAND_ECC_SOFT:
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if (!mtd_nand_has_ecc_soft()) {
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printk(KERN_WARNING "CONFIG_MTD_ECC_SOFT not enabled\n");
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return -EINVAL;
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}
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chip->ecc.calculate = nand_calculate_ecc;
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chip->ecc.correct = nand_correct_data;
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chip->ecc.read_page = nand_read_page_swecc;
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@ -3170,10 +3171,9 @@ int nand_scan_tail(struct mtd_info *mtd)
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/* Check, if we should skip the bad block table scan */
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if (chip->options & NAND_SKIP_BBTSCAN)
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return 0;
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chip->options |= NAND_BBT_SCANNED;
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/* Build bad block table */
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return chip->scan_bbt(mtd);
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return 0;
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}
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/**
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@ -232,6 +232,8 @@ typedef enum {
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#define NAND_CREATE_EMPTY_BBT 0x01000000
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/* Options set by nand scan */
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/* bbt has already been read */
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#define NAND_BBT_SCANNED 0x40000000
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/* Nand scan has allocated controller struct */
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#define NAND_CONTROLLER_ALLOC 0x80000000
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@ -15,10 +15,6 @@
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struct mtd_info;
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#if defined(CONFIG_MTD_ECC_SOFT)
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static inline int mtd_nand_has_ecc_soft(void) { return 1; }
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/*
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* Calculate 3 byte ECC code for 256 byte block
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*/
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@ -29,25 +25,4 @@ int nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code
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*/
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int nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc);
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#else
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static inline int mtd_nand_has_ecc_soft(void) { return 0; }
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static inline int
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nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code)
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{
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return -1;
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}
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static inline int
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nand_correct_data(struct mtd_info *mtd,
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u_char *dat,
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u_char *read_ecc,
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u_char *calc_ecc)
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{
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return -1;
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}
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#endif
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#endif /* __MTD_NAND_ECC_H__ */
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