mtd: nand: force drivers to explicitly send READ/PROG commands
authorBoris Brezillon <boris.brezillon@free-electrons.com>
Thu, 30 Nov 2017 17:01:30 +0000 (18:01 +0100)
committerBoris Brezillon <boris.brezillon@free-electrons.com>
Thu, 14 Dec 2017 12:34:17 +0000 (13:34 +0100)
The core currently send the READ0 and SEQIN+PAGEPROG commands in
nand_do_read/write_ops(). This is inconsistent with
->read/write_oob[_raw]() hooks behavior which are expected to send
these commands.

There's already a flag (NAND_ECC_CUSTOM_PAGE_ACCESS) to inform the core
that a specific controller wants to send the READ/SEQIN+PAGEPROG
commands on its own, but it's an opt-in flag, and existing drivers are
unlikely to be updated to pass it.

Moreover, some controllers cannot dissociate the READ/PAGEPROG commands
from the associated data transfer and ECC engine activation, and
developers have to hack things in their ->cmdfunc() implementation to
handle such complex cases, or have to accept the perf penalty of sending
twice the same command.
To address this problem we are planning on adding a new interface which
is passed all information about a NAND operation (including the amount
of data to transfer) and replacing all calls to ->cmdfunc() to calls to
this new ->exec_op() hook. But, in order to do that, we need to have all
->cmdfunc() calls placed near their associated ->read/write_buf/byte()
calls.

Modify the core and relevant drivers to make NAND_ECC_CUSTOM_PAGE_ACCESS
the default case, and remove this flag.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[miquel.raynal@free-electrons.com: tested, fixed and rebased on nand/next]
Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
24 files changed:
drivers/mtd/nand/atmel/nand-controller.c
drivers/mtd/nand/bf5xx_nand.c
drivers/mtd/nand/brcmnand/brcmnand.c
drivers/mtd/nand/cafe_nand.c
drivers/mtd/nand/denali.c
drivers/mtd/nand/docg4.c
drivers/mtd/nand/fsl_elbc_nand.c
drivers/mtd/nand/fsl_ifc_nand.c
drivers/mtd/nand/gpmi-nand/gpmi-nand.c
drivers/mtd/nand/hisi504_nand.c
drivers/mtd/nand/lpc32xx_mlc.c
drivers/mtd/nand/lpc32xx_slc.c
drivers/mtd/nand/mtk_nand.c
drivers/mtd/nand/nand_base.c
drivers/mtd/nand/nand_micron.c
drivers/mtd/nand/omap2.c
drivers/mtd/nand/pxa3xx_nand.c
drivers/mtd/nand/qcom_nandc.c
drivers/mtd/nand/sh_flctl.c
drivers/mtd/nand/sunxi_nand.c
drivers/mtd/nand/tango_nand.c
drivers/mtd/nand/vf610_nfc.c
drivers/staging/mt29f_spinand/mt29f_spinand.c
include/linux/mtd/rawnand.h

index e81fdd2d47b1ced43e66caf04404fff336c8cf98..b2f00b39849020e41387f45e5073ba40637dc057 100644 (file)
@@ -841,6 +841,8 @@ static int atmel_nand_pmecc_write_pg(struct nand_chip *chip, const u8 *buf,
        struct atmel_nand *nand = to_atmel_nand(chip);
        int ret;
 
+       nand_prog_page_begin_op(chip, page, 0, NULL, 0);
+
        ret = atmel_nand_pmecc_enable(chip, NAND_ECC_WRITE, raw);
        if (ret)
                return ret;
@@ -857,7 +859,7 @@ static int atmel_nand_pmecc_write_pg(struct nand_chip *chip, const u8 *buf,
 
        atmel_nand_write_buf(mtd, chip->oob_poi, mtd->oobsize);
 
-       return 0;
+       return nand_prog_page_end_op(chip);
 }
 
 static int atmel_nand_pmecc_write_page(struct mtd_info *mtd,
@@ -881,6 +883,8 @@ static int atmel_nand_pmecc_read_pg(struct nand_chip *chip, u8 *buf,
        struct mtd_info *mtd = nand_to_mtd(chip);
        int ret;
 
+       nand_read_page_op(chip, page, 0, NULL, 0);
+
        ret = atmel_nand_pmecc_enable(chip, NAND_ECC_READ, raw);
        if (ret)
                return ret;
@@ -1178,7 +1182,6 @@ static int atmel_hsmc_nand_ecc_init(struct atmel_nand *nand)
        chip->ecc.write_page = atmel_hsmc_nand_pmecc_write_page;
        chip->ecc.read_page_raw = atmel_hsmc_nand_pmecc_read_page_raw;
        chip->ecc.write_page_raw = atmel_hsmc_nand_pmecc_write_page_raw;
-       chip->ecc.options |= NAND_ECC_CUSTOM_PAGE_ACCESS;
 
        return 0;
 }
index 5655dca6ce434769b96e30fb4c59168267f6c461..87bbd177b3e55b94f861132fefe8b356de8260de 100644 (file)
@@ -572,6 +572,8 @@ static void bf5xx_nand_dma_write_buf(struct mtd_info *mtd,
 static int bf5xx_nand_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
                uint8_t *buf, int oob_required, int page)
 {
+       nand_read_page_op(chip, page, 0, NULL, 0);
+
        bf5xx_nand_read_buf(mtd, buf, mtd->writesize);
        bf5xx_nand_read_buf(mtd, chip->oob_poi, mtd->oobsize);
 
@@ -582,10 +584,10 @@ static int bf5xx_nand_write_page_raw(struct mtd_info *mtd,
                struct nand_chip *chip, const uint8_t *buf, int oob_required,
                int page)
 {
-       bf5xx_nand_write_buf(mtd, buf, mtd->writesize);
+       nand_prog_page_begin_op(chip, page, 0, buf, mtd->writesize);
        bf5xx_nand_write_buf(mtd, chip->oob_poi, mtd->oobsize);
 
-       return 0;
+       return nand_prog_page_end_op(chip);
 }
 
 /*
index 3f441096a14cb221d7ae373793f2141176c27bc5..e6879d4d53caa0e61a604e61cc151311d7646ed3 100644 (file)
@@ -1689,7 +1689,6 @@ static int brcmstb_nand_verify_erased_page(struct mtd_info *mtd,
        sas = mtd->oobsize / chip->ecc.steps;
 
        /* read without ecc for verification */
-       nand_read_page_op(chip, page, 0, NULL, 0);
        ret = chip->ecc.read_page_raw(mtd, chip, buf, true, page);
        if (ret)
                return ret;
@@ -1793,6 +1792,8 @@ static int brcmnand_read_page(struct mtd_info *mtd, struct nand_chip *chip,
        struct brcmnand_host *host = nand_get_controller_data(chip);
        u8 *oob = oob_required ? (u8 *)chip->oob_poi : NULL;
 
+       nand_read_page_op(chip, page, 0, NULL, 0);
+
        return brcmnand_read(mtd, chip, host->last_addr,
                        mtd->writesize >> FC_SHIFT, (u32 *)buf, oob);
 }
@@ -1804,6 +1805,8 @@ static int brcmnand_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
        u8 *oob = oob_required ? (u8 *)chip->oob_poi : NULL;
        int ret;
 
+       nand_read_page_op(chip, page, 0, NULL, 0);
+
        brcmnand_set_ecc_enabled(host, 0);
        ret = brcmnand_read(mtd, chip, host->last_addr,
                        mtd->writesize >> FC_SHIFT, (u32 *)buf, oob);
@@ -1909,8 +1912,10 @@ static int brcmnand_write_page(struct mtd_info *mtd, struct nand_chip *chip,
        struct brcmnand_host *host = nand_get_controller_data(chip);
        void *oob = oob_required ? chip->oob_poi : NULL;
 
+       nand_prog_page_begin_op(chip, page, 0, NULL, 0);
        brcmnand_write(mtd, chip, host->last_addr, (const u32 *)buf, oob);
-       return 0;
+
+       return nand_prog_page_end_op(chip);
 }
 
 static int brcmnand_write_page_raw(struct mtd_info *mtd,
@@ -1920,10 +1925,12 @@ static int brcmnand_write_page_raw(struct mtd_info *mtd,
        struct brcmnand_host *host = nand_get_controller_data(chip);
        void *oob = oob_required ? chip->oob_poi : NULL;
 
+       nand_prog_page_begin_op(chip, page, 0, NULL, 0);
        brcmnand_set_ecc_enabled(host, 0);
        brcmnand_write(mtd, chip, host->last_addr, (const u32 *)buf, oob);
        brcmnand_set_ecc_enabled(host, 1);
-       return 0;
+
+       return nand_prog_page_end_op(chip);
 }
 
 static int brcmnand_write_oob(struct mtd_info *mtd, struct nand_chip *chip,
index 95c2cfa68b667dfa1adae8a9a215b47c64bcd94c..de36762e3058af18f511798e76e298a50cbbdc5a 100644 (file)
@@ -383,7 +383,7 @@ static int cafe_nand_read_page(struct mtd_info *mtd, struct nand_chip *chip,
                     cafe_readl(cafe, NAND_ECC_RESULT),
                     cafe_readl(cafe, NAND_ECC_SYN01));
 
-       chip->read_buf(mtd, buf, mtd->writesize);
+       nand_read_page_op(chip, page, 0, buf, mtd->writesize);
        chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
 
        if (checkecc && cafe_readl(cafe, NAND_ECC_RESULT) & (1<<18)) {
@@ -541,13 +541,13 @@ static int cafe_nand_write_page_lowlevel(struct mtd_info *mtd,
 {
        struct cafe_priv *cafe = nand_get_controller_data(chip);
 
-       chip->write_buf(mtd, buf, mtd->writesize);
+       nand_prog_page_begin_op(chip, page, 0, buf, mtd->writesize);
        chip->write_buf(mtd, chip->oob_poi, mtd->oobsize);
 
        /* Set up ECC autogeneration */
        cafe->ctl2 |= (1<<30);
 
-       return 0;
+       return nand_prog_page_end_op(chip);
 }
 
 static int cafe_nand_block_bad(struct mtd_info *mtd, loff_t ofs)
index d5c80d6178544e1a7275441c4da35c61469a62e9..47a253737bb2e93a8c0a89187031705803ce96dc 100644 (file)
@@ -1358,7 +1358,6 @@ int denali_init(struct denali_nand_info *denali)
                chip->read_buf = denali_read_buf;
                chip->write_buf = denali_write_buf;
        }
-       chip->ecc.options |= NAND_ECC_CUSTOM_PAGE_ACCESS;
        chip->ecc.read_page = denali_read_page;
        chip->ecc.read_page_raw = denali_read_page_raw;
        chip->ecc.write_page = denali_write_page;
index 5a27f56dafdc012b129df0e88b93071d88897c13..72f1327c4430c207970c3d54707b2ae423ee1ed0 100644 (file)
@@ -785,6 +785,8 @@ static int read_page(struct mtd_info *mtd, struct nand_chip *nand,
 
        dev_dbg(doc->dev, "%s: page %08x\n", __func__, page);
 
+       nand_read_page_op(nand, page, 0, NULL, 0);
+
        writew(DOC_ECCCONF0_READ_MODE |
               DOC_ECCCONF0_ECC_ENABLE |
               DOC_ECCCONF0_UNKNOWN |
@@ -948,7 +950,7 @@ static int docg4_erase_block(struct mtd_info *mtd, int page)
 }
 
 static int write_page(struct mtd_info *mtd, struct nand_chip *nand,
-                      const uint8_t *buf, bool use_ecc)
+                     const uint8_t *buf, int page, bool use_ecc)
 {
        struct docg4_priv *doc = nand_get_controller_data(nand);
        void __iomem *docptr = doc->virtadr;
@@ -956,6 +958,8 @@ static int write_page(struct mtd_info *mtd, struct nand_chip *nand,
 
        dev_dbg(doc->dev, "%s...\n", __func__);
 
+       nand_prog_page_begin_op(nand, page, 0, NULL, 0);
+
        writew(DOC_ECCCONF0_ECC_ENABLE |
               DOC_ECCCONF0_UNKNOWN |
               DOCG4_BCH_SIZE,
@@ -1000,19 +1004,19 @@ static int write_page(struct mtd_info *mtd, struct nand_chip *nand,
        writew(0, docptr + DOC_DATAEND);
        write_nop(docptr);
 
-       return 0;
+       return nand_prog_page_end_op(nand);
 }
 
 static int docg4_write_page_raw(struct mtd_info *mtd, struct nand_chip *nand,
                                const uint8_t *buf, int oob_required, int page)
 {
-       return write_page(mtd, nand, buf, false);
+       return write_page(mtd, nand, buf, page, false);
 }
 
 static int docg4_write_page(struct mtd_info *mtd, struct nand_chip *nand,
                             const uint8_t *buf, int oob_required, int page)
 {
-       return write_page(mtd, nand, buf, true);
+       return write_page(mtd, nand, buf, page, true);
 }
 
 static int docg4_write_oob(struct mtd_info *mtd, struct nand_chip *nand,
index 17db2f90aa2c33d4c4b6b3da53e4762fdd8e37bd..8b6dcd739ecb621741b351e568ac659cda075ff0 100644 (file)
@@ -713,7 +713,7 @@ static int fsl_elbc_read_page(struct mtd_info *mtd, struct nand_chip *chip,
        struct fsl_lbc_ctrl *ctrl = priv->ctrl;
        struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = ctrl->nand;
 
-       fsl_elbc_read_buf(mtd, buf, mtd->writesize);
+       nand_read_page_op(chip, page, 0, buf, mtd->writesize);
        if (oob_required)
                fsl_elbc_read_buf(mtd, chip->oob_poi, mtd->oobsize);
 
@@ -729,10 +729,10 @@ static int fsl_elbc_read_page(struct mtd_info *mtd, struct nand_chip *chip,
 static int fsl_elbc_write_page(struct mtd_info *mtd, struct nand_chip *chip,
                                const uint8_t *buf, int oob_required, int page)
 {
-       fsl_elbc_write_buf(mtd, buf, mtd->writesize);
+       nand_prog_page_begin_op(chip, page, 0, buf, mtd->writesize);
        fsl_elbc_write_buf(mtd, chip->oob_poi, mtd->oobsize);
 
-       return 0;
+       return nand_prog_page_end_op(chip);
 }
 
 /* ECC will be calculated automatically, and errors will be detected in
@@ -742,10 +742,10 @@ static int fsl_elbc_write_subpage(struct mtd_info *mtd, struct nand_chip *chip,
                                uint32_t offset, uint32_t data_len,
                                const uint8_t *buf, int oob_required, int page)
 {
+       nand_prog_page_begin_op(chip, page, 0, NULL, 0);
        fsl_elbc_write_buf(mtd, buf, mtd->writesize);
        fsl_elbc_write_buf(mtd, chip->oob_poi, mtd->oobsize);
-
-       return 0;
+       return nand_prog_page_end_op(chip);
 }
 
 static int fsl_elbc_chip_init(struct fsl_elbc_mtd *priv)
index bbdd68a54d68dd4d1088bf2126160fd47bbd1ae4..4872a7ba6503278670f4963897b110c98554d708 100644 (file)
@@ -688,7 +688,7 @@ static int fsl_ifc_read_page(struct mtd_info *mtd, struct nand_chip *chip,
        struct fsl_ifc_ctrl *ctrl = priv->ctrl;
        struct fsl_ifc_nand_ctrl *nctrl = ifc_nand_ctrl;
 
-       fsl_ifc_read_buf(mtd, buf, mtd->writesize);
+       nand_read_page_op(chip, page, 0, buf, mtd->writesize);
        if (oob_required)
                fsl_ifc_read_buf(mtd, chip->oob_poi, mtd->oobsize);
 
@@ -711,10 +711,10 @@ static int fsl_ifc_read_page(struct mtd_info *mtd, struct nand_chip *chip,
 static int fsl_ifc_write_page(struct mtd_info *mtd, struct nand_chip *chip,
                               const uint8_t *buf, int oob_required, int page)
 {
-       fsl_ifc_write_buf(mtd, buf, mtd->writesize);
+       nand_prog_page_begin_op(chip, page, 0, buf, mtd->writesize);
        fsl_ifc_write_buf(mtd, chip->oob_poi, mtd->oobsize);
 
-       return 0;
+       return nand_prog_page_end_op(chip);
 }
 
 static int fsl_ifc_chip_init_tail(struct mtd_info *mtd)
index 63a425ced4cd6726cba6c7bdca11d8d6a98b5cd6..3c3f3f58fdcbc7834fec65ab29c2ae1de72c154f 100644 (file)
@@ -1043,6 +1043,8 @@ static int gpmi_ecc_read_page(struct mtd_info *mtd, struct nand_chip *chip,
        unsigned int  max_bitflips = 0;
        int           ret;
 
+       nand_read_page_op(chip, page, 0, NULL, 0);
+
        dev_dbg(this->dev, "page number is : %d\n", page);
        ret = read_page_prepare(this, buf, nfc_geo->payload_size,
                                        this->payload_virt, this->payload_phys,
@@ -1220,12 +1222,12 @@ static int gpmi_ecc_read_subpage(struct mtd_info *mtd, struct nand_chip *chip,
        meta = geo->metadata_size;
        if (first) {
                col = meta + (size + ecc_parity_size) * first;
-               nand_change_read_column_op(chip, col, NULL, 0, false);
-
                meta = 0;
                buf = buf + first * size;
        }
 
+       nand_read_page_op(chip, page, col, NULL, 0);
+
        /* Save the old environment */
        r1_old = r1_new = readl(bch_regs + HW_BCH_FLASH0LAYOUT0);
        r2_old = r2_new = readl(bch_regs + HW_BCH_FLASH0LAYOUT1);
@@ -1277,6 +1279,9 @@ static int gpmi_ecc_write_page(struct mtd_info *mtd, struct nand_chip *chip,
        int        ret;
 
        dev_dbg(this->dev, "ecc write page.\n");
+
+       nand_prog_page_begin_op(chip, page, 0, NULL, 0);
+
        if (this->swap_block_mark) {
                /*
                 * If control arrives here, we're doing block mark swapping.
@@ -1338,7 +1343,10 @@ exit_auxiliary:
                                payload_virt, payload_phys);
        }
 
-       return 0;
+       if (ret)
+               return ret;
+
+       return nand_prog_page_end_op(chip);
 }
 
 /*
@@ -1472,8 +1480,8 @@ static int gpmi_ecc_read_page_raw(struct mtd_info *mtd,
        uint8_t *oob = chip->oob_poi;
        int step;
 
-       chip->read_buf(mtd, tmp_buf,
-                      mtd->writesize + mtd->oobsize);
+       nand_read_page_op(chip, page, 0, tmp_buf,
+                         mtd->writesize + mtd->oobsize);
 
        /*
         * If required, swap the bad block marker and the data stored in the
@@ -1609,24 +1617,19 @@ static int gpmi_ecc_write_page_raw(struct mtd_info *mtd,
        if (this->swap_block_mark)
                swap(tmp_buf[0], tmp_buf[mtd->writesize]);
 
-       chip->write_buf(mtd, tmp_buf, mtd->writesize + mtd->oobsize);
-
-       return 0;
+       return nand_prog_page_op(chip, page, 0, tmp_buf,
+                                mtd->writesize + mtd->oobsize);
 }
 
 static int gpmi_ecc_read_oob_raw(struct mtd_info *mtd, struct nand_chip *chip,
                                 int page)
 {
-       nand_read_page_op(chip, page, 0, NULL, 0);
-
        return gpmi_ecc_read_page_raw(mtd, chip, NULL, 1, page);
 }
 
 static int gpmi_ecc_write_oob_raw(struct mtd_info *mtd, struct nand_chip *chip,
                                 int page)
 {
-       nand_prog_page_begin_op(chip, page, 0, NULL, 0);
-
        return gpmi_ecc_write_page_raw(mtd, chip, NULL, 1, page);
 }
 
@@ -1798,9 +1801,7 @@ static int mx23_write_transcription_stamp(struct gpmi_nand_data *this)
                /* Write the first page of the current stride. */
                dev_dbg(dev, "Writing an NCB fingerprint in page 0x%x\n", page);
 
-               nand_prog_page_begin_op(chip, page, 0, NULL, 0);
-               chip->ecc.write_page_raw(mtd, chip, buffer, 0, page);
-               status = nand_prog_page_end_op(chip);
+               status = chip->ecc.write_page_raw(mtd, chip, buffer, 0, page);
                if (status)
                        dev_err(dev, "[%s] Write failed.\n", __func__);
        }
index 184d765c8bbebefd419893cf48b8847317df00bb..cb862793ab6deb5f626b18eb8679f43e34950ecc 100644 (file)
@@ -544,7 +544,7 @@ static int hisi_nand_read_page_hwecc(struct mtd_info *mtd,
        int max_bitflips = 0, stat = 0, stat_max = 0, status_ecc;
        int stat_1, stat_2;
 
-       chip->read_buf(mtd, buf, mtd->writesize);
+       nand_read_page_op(chip, page, 0, buf, mtd->writesize);
        chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
 
        /* errors which can not be corrected by ECC */
@@ -589,11 +589,11 @@ static int hisi_nand_write_page_hwecc(struct mtd_info *mtd,
                struct nand_chip *chip, const uint8_t *buf, int oob_required,
                int page)
 {
-       chip->write_buf(mtd, buf, mtd->writesize);
+       nand_prog_page_begin_op(chip, page, 0, buf, mtd->writesize);
        if (oob_required)
                chip->write_buf(mtd, chip->oob_poi, mtd->oobsize);
 
-       return 0;
+       return nand_prog_page_end_op(chip);
 }
 
 static void hisi_nfc_host_init(struct hinfc_host *host)
index 31cb3b2967b930a15260f01fed6c8163185d9701..e357948a75052a01b8e69ab45c28425313bbee7d 100644 (file)
@@ -522,6 +522,8 @@ static int lpc32xx_write_page_lowlevel(struct mtd_info *mtd,
                memcpy(dma_buf, buf, mtd->writesize);
        }
 
+       nand_prog_page_begin_op(chip, page, 0, NULL, 0);
+
        for (i = 0; i < host->mlcsubpages; i++) {
                /* Start Encode */
                writeb(0x00, MLC_ECC_ENC_REG(host->io_base));
@@ -550,7 +552,8 @@ static int lpc32xx_write_page_lowlevel(struct mtd_info *mtd,
                /* Wait for Controller Ready */
                lpc32xx_waitfunc_controller(mtd, chip);
        }
-       return 0;
+
+       return nand_prog_page_end_op(chip);
 }
 
 static int lpc32xx_read_oob(struct mtd_info *mtd, struct nand_chip *chip,
index 2b96c281b1a2cd6b57c8715fe805c971bd91fbd5..5f7cc6da0a7fa4d4585b0e41b28da632a3f89c0f 100644 (file)
@@ -686,6 +686,8 @@ static int lpc32xx_nand_write_page_syndrome(struct mtd_info *mtd,
        uint8_t *pb;
        int error;
 
+       nand_prog_page_begin_op(chip, page, 0, NULL, 0);
+
        /* Write data, calculate ECC on outbound data */
        error = lpc32xx_xfer(mtd, (uint8_t *)buf, chip->ecc.steps, 0);
        if (error)
@@ -704,7 +706,8 @@ static int lpc32xx_nand_write_page_syndrome(struct mtd_info *mtd,
 
        /* Write ECC data to device */
        chip->write_buf(mtd, chip->oob_poi, mtd->oobsize);
-       return 0;
+
+       return nand_prog_page_end_op(chip);
 }
 
 /*
@@ -717,9 +720,11 @@ static int lpc32xx_nand_write_page_raw_syndrome(struct mtd_info *mtd,
                                                int oob_required, int page)
 {
        /* Raw writes can just use the FIFO interface */
-       chip->write_buf(mtd, buf, chip->ecc.size * chip->ecc.steps);
+       nand_prog_page_begin_op(chip, page, 0, buf,
+                               chip->ecc.size * chip->ecc.steps);
        chip->write_buf(mtd, chip->oob_poi, mtd->oobsize);
-       return 0;
+
+       return nand_prog_page_end_op(chip);
 }
 
 static int lpc32xx_nand_dma_setup(struct lpc32xx_nand_host *host)
index 9c4adaf9331b0dc8f647c4213d21258da7df0d46..5d76be451596175fe1585057173fb9189102d3cd 100644 (file)
@@ -761,6 +761,8 @@ static int mtk_nfc_write_page(struct mtd_info *mtd, struct nand_chip *chip,
        u32 reg;
        int ret;
 
+       nand_prog_page_begin_op(chip, page, 0, NULL, 0);
+
        if (!raw) {
                /* OOB => FDM: from register,  ECC: from HW */
                reg = nfi_readw(nfc, NFI_CNFG) | CNFG_AUTO_FMT_EN;
@@ -794,7 +796,10 @@ static int mtk_nfc_write_page(struct mtd_info *mtd, struct nand_chip *chip,
        if (!raw)
                mtk_ecc_disable(nfc->ecc);
 
-       return ret;
+       if (ret)
+               return ret;
+
+       return nand_prog_page_end_op(chip);
 }
 
 static int mtk_nfc_write_page_hwecc(struct mtd_info *mtd,
@@ -832,15 +837,7 @@ static int mtk_nfc_write_subpage_hwecc(struct mtd_info *mtd,
 static int mtk_nfc_write_oob_std(struct mtd_info *mtd, struct nand_chip *chip,
                                 int page)
 {
-       int ret;
-
-       nand_prog_page_begin_op(chip, page, 0, NULL, 0);
-
-       ret = mtk_nfc_write_page_raw(mtd, chip, NULL, 1, page);
-       if (ret < 0)
-               return -EIO;
-
-       return nand_prog_page_end_op(chip);
+       return mtk_nfc_write_page_raw(mtd, chip, NULL, 1, page);
 }
 
 static int mtk_nfc_update_ecc_stats(struct mtd_info *mtd, u8 *buf, u32 sectors)
@@ -889,8 +886,7 @@ static int mtk_nfc_read_subpage(struct mtd_info *mtd, struct nand_chip *chip,
        len = sectors * chip->ecc.size + (raw ? sectors * spare : 0);
        buf = bufpoi + start * chip->ecc.size;
 
-       if (column != 0)
-               nand_change_read_column_op(chip, column, NULL, 0, false);
+       nand_read_page_op(chip, page, column, NULL, 0);
 
        addr = dma_map_single(nfc->dev, buf, len, DMA_FROM_DEVICE);
        rc = dma_mapping_error(nfc->dev, addr);
@@ -1013,8 +1009,6 @@ static int mtk_nfc_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
 static int mtk_nfc_read_oob_std(struct mtd_info *mtd, struct nand_chip *chip,
                                int page)
 {
-       nand_read_page_op(chip, page, 0, NULL, 0);
-
        return mtk_nfc_read_page_raw(mtd, chip, NULL, 1, page);
 }
 
index 539132ef0095f4e3f346545f30e2699de7003124..e3bf33bc1fb610843dd4971b1d9b36369a2a9685 100644 (file)
@@ -1940,7 +1940,7 @@ int nand_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
 {
        int ret;
 
-       ret = nand_read_data_op(chip, buf, mtd->writesize, false);
+       ret = nand_read_page_op(chip, page, 0, buf, mtd->writesize);
        if (ret)
                return ret;
 
@@ -1974,6 +1974,10 @@ static int nand_read_page_raw_syndrome(struct mtd_info *mtd,
        uint8_t *oob = chip->oob_poi;
        int steps, size, ret;
 
+       ret = nand_read_page_op(chip, page, 0, NULL, 0);
+       if (ret)
+               return ret;
+
        for (steps = chip->ecc.steps; steps > 0; steps--) {
                ret = nand_read_data_op(chip, buf, eccsize, false);
                if (ret)
@@ -2096,11 +2100,8 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip,
 
        data_col_addr = start_step * chip->ecc.size;
        /* If we read not a page aligned data */
-       if (data_col_addr != 0)
-               chip->cmdfunc(mtd, NAND_CMD_RNDOUT, data_col_addr, -1);
-
        p = bufpoi + data_col_addr;
-       ret = nand_read_data_op(chip, p, datafrag_len, false);
+       ret = nand_read_page_op(chip, page, data_col_addr, p, datafrag_len);
        if (ret)
                return ret;
 
@@ -2198,6 +2199,10 @@ static int nand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
        uint8_t *ecc_code = chip->buffers->ecccode;
        unsigned int max_bitflips = 0;
 
+       ret = nand_read_page_op(chip, page, 0, NULL, 0);
+       if (ret)
+               return ret;
+
        for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
                chip->ecc.hwctl(mtd, NAND_ECC_READ);
 
@@ -2335,6 +2340,10 @@ static int nand_read_page_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
        uint8_t *oob = chip->oob_poi;
        unsigned int max_bitflips = 0;
 
+       ret = nand_read_page_op(chip, page, 0, NULL, 0);
+       if (ret)
+               return ret;
+
        for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
                int stat;
 
@@ -2517,12 +2526,6 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
                                                 __func__, buf);
 
 read_retry:
-                       if (nand_standard_page_accessors(&chip->ecc)) {
-                               ret = nand_read_page_op(chip, page, 0, NULL, 0);
-                               if (ret)
-                                       break;
-                       }
-
                        /*
                         * Now read the page into the buffer.  Absent an error,
                         * the read methods return max bitflips per ecc step.
@@ -2978,7 +2981,7 @@ int nand_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
 {
        int ret;
 
-       ret = nand_write_data_op(chip, buf, mtd->writesize, false);
+       ret = nand_prog_page_begin_op(chip, page, 0, buf, mtd->writesize);
        if (ret)
                return ret;
 
@@ -2989,7 +2992,7 @@ int nand_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
                        return ret;
        }
 
-       return 0;
+       return nand_prog_page_end_op(chip);
 }
 EXPORT_SYMBOL(nand_write_page_raw);
 
@@ -3013,6 +3016,10 @@ static int nand_write_page_raw_syndrome(struct mtd_info *mtd,
        uint8_t *oob = chip->oob_poi;
        int steps, size, ret;
 
+       ret = nand_prog_page_begin_op(chip, page, 0, NULL, 0);
+       if (ret)
+               return ret;
+
        for (steps = chip->ecc.steps; steps > 0; steps--) {
                ret = nand_write_data_op(chip, buf, eccsize, false);
                if (ret)
@@ -3052,7 +3059,7 @@ static int nand_write_page_raw_syndrome(struct mtd_info *mtd,
                        return ret;
        }
 
-       return 0;
+       return nand_prog_page_end_op(chip);
 }
 /**
  * nand_write_page_swecc - [REPLACEABLE] software ECC based page write function
@@ -3102,6 +3109,10 @@ static int nand_write_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
        uint8_t *ecc_calc = chip->buffers->ecccalc;
        const uint8_t *p = buf;
 
+       ret = nand_prog_page_begin_op(chip, page, 0, NULL, 0);
+       if (ret)
+               return ret;
+
        for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
                chip->ecc.hwctl(mtd, NAND_ECC_WRITE);
 
@@ -3121,7 +3132,7 @@ static int nand_write_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
        if (ret)
                return ret;
 
-       return 0;
+       return nand_prog_page_end_op(chip);
 }
 
 
@@ -3150,6 +3161,10 @@ static int nand_write_subpage_hwecc(struct mtd_info *mtd,
        int oob_bytes       = mtd->oobsize / ecc_steps;
        int step, ret;
 
+       ret = nand_prog_page_begin_op(chip, page, 0, NULL, 0);
+       if (ret)
+               return ret;
+
        for (step = 0; step < ecc_steps; step++) {
                /* configure controller for WRITE access */
                chip->ecc.hwctl(mtd, NAND_ECC_WRITE);
@@ -3188,7 +3203,7 @@ static int nand_write_subpage_hwecc(struct mtd_info *mtd,
        if (ret)
                return ret;
 
-       return 0;
+       return nand_prog_page_end_op(chip);
 }
 
 
@@ -3215,6 +3230,10 @@ static int nand_write_page_syndrome(struct mtd_info *mtd,
        uint8_t *oob = chip->oob_poi;
        int ret;
 
+       ret = nand_prog_page_begin_op(chip, page, 0, NULL, 0);
+       if (ret)
+               return ret;
+
        for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
                chip->ecc.hwctl(mtd, NAND_ECC_WRITE);
 
@@ -3257,7 +3276,7 @@ static int nand_write_page_syndrome(struct mtd_info *mtd,
                        return ret;
        }
 
-       return 0;
+       return nand_prog_page_end_op(chip);
 }
 
 /**
@@ -3283,12 +3302,6 @@ static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip,
        else
                subpage = 0;
 
-       if (nand_standard_page_accessors(&chip->ecc)) {
-               status = nand_prog_page_begin_op(chip, page, 0, NULL, 0);
-               if (status)
-                       return status;
-       }
-
        if (unlikely(raw))
                status = chip->ecc.write_page_raw(mtd, chip, buf,
                                                  oob_required, page);
@@ -3302,9 +3315,6 @@ static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip,
        if (status < 0)
                return status;
 
-       if (nand_standard_page_accessors(&chip->ecc))
-               return nand_prog_page_end_op(chip);
-
        return 0;
 }
 
@@ -5290,26 +5300,6 @@ static bool nand_ecc_strength_good(struct mtd_info *mtd)
        return corr >= ds_corr && ecc->strength >= chip->ecc_strength_ds;
 }
 
-static bool invalid_ecc_page_accessors(struct nand_chip *chip)
-{
-       struct nand_ecc_ctrl *ecc = &chip->ecc;
-
-       if (nand_standard_page_accessors(ecc))
-               return false;
-
-       /*
-        * NAND_ECC_CUSTOM_PAGE_ACCESS flag is set, make sure the NAND
-        * controller driver implements all the page accessors because
-        * default helpers are not suitable when the core does not
-        * send the READ0/PAGEPROG commands.
-        */
-       return (!ecc->read_page || !ecc->write_page ||
-               !ecc->read_page_raw || !ecc->write_page_raw ||
-               (NAND_HAS_SUBPAGE_READ(chip) && !ecc->read_subpage) ||
-               (NAND_HAS_SUBPAGE_WRITE(chip) && !ecc->write_subpage &&
-                ecc->hwctl && ecc->calculate));
-}
-
 /**
  * nand_scan_tail - [NAND Interface] Scan for the NAND device
  * @mtd: MTD device structure
@@ -5331,11 +5321,6 @@ int nand_scan_tail(struct mtd_info *mtd)
                return -EINVAL;
        }
 
-       if (invalid_ecc_page_accessors(chip)) {
-               pr_err("Invalid ECC page accessors setup\n");
-               return -EINVAL;
-       }
-
        if (!(chip->options & NAND_OWN_BUFFERS)) {
                nbuf = kzalloc(sizeof(*nbuf), GFP_KERNEL);
                if (!nbuf)
index bf2dc23e1c32db63d5cb98e2e54f5548481728b2..02e109ae73f1d15503286b25a65ceb0e4cc08eaa 100644 (file)
@@ -149,7 +149,10 @@ micron_nand_read_page_on_die_ecc(struct mtd_info *mtd, struct nand_chip *chip,
        else if (status & NAND_STATUS_WRITE_RECOMMENDED)
                max_bitflips = chip->ecc.strength;
 
-       ret = nand_read_page_raw(mtd, chip, buf, oob_required, page);
+       ret = nand_read_data_op(chip, buf, mtd->writesize, false);
+       if (!ret && oob_required)
+               ret = nand_read_data_op(chip, chip->oob_poi, mtd->oobsize,
+                                       false);
 
 out:
        micron_nand_on_die_ecc_setup(chip, false);
@@ -168,56 +171,12 @@ micron_nand_write_page_on_die_ecc(struct mtd_info *mtd, struct nand_chip *chip,
        if (ret)
                return ret;
 
-       ret = nand_prog_page_begin_op(chip, page, 0, NULL, 0);
-       if (ret)
-               goto out;
-
        ret = nand_write_page_raw(mtd, chip, buf, oob_required, page);
-       if (ret)
-               return ret;
-
-       ret = nand_prog_page_end_op(chip);
-
-out:
        micron_nand_on_die_ecc_setup(chip, false);
 
        return ret;
 }
 
-static int
-micron_nand_read_page_raw_on_die_ecc(struct mtd_info *mtd,
-                                    struct nand_chip *chip,
-                                    uint8_t *buf, int oob_required,
-                                    int page)
-{
-       int ret;
-
-       ret = nand_read_page_op(chip, page, 0, NULL, 0);
-       if (ret)
-               return ret;
-
-       return nand_read_page_raw(mtd, chip, buf, oob_required, page);
-}
-
-static int
-micron_nand_write_page_raw_on_die_ecc(struct mtd_info *mtd,
-                                     struct nand_chip *chip,
-                                     const uint8_t *buf, int oob_required,
-                                     int page)
-{
-       int ret;
-
-       ret = nand_prog_page_begin_op(chip, page, 0, NULL, 0);
-       if (ret)
-               return ret;
-
-       ret = nand_write_page_raw(mtd, chip, buf, oob_required, page);
-       if (ret)
-               return ret;
-
-       return nand_prog_page_end_op(chip);
-}
-
 enum {
        /* The NAND flash doesn't support on-die ECC */
        MICRON_ON_DIE_UNSUPPORTED,
@@ -310,17 +269,14 @@ static int micron_nand_init(struct nand_chip *chip)
                        return -EINVAL;
                }
 
-               chip->ecc.options = NAND_ECC_CUSTOM_PAGE_ACCESS;
                chip->ecc.bytes = 8;
                chip->ecc.size = 512;
                chip->ecc.strength = 4;
                chip->ecc.algo = NAND_ECC_BCH;
                chip->ecc.read_page = micron_nand_read_page_on_die_ecc;
                chip->ecc.write_page = micron_nand_write_page_on_die_ecc;
-               chip->ecc.read_page_raw =
-                       micron_nand_read_page_raw_on_die_ecc;
-               chip->ecc.write_page_raw =
-                       micron_nand_write_page_raw_on_die_ecc;
+               chip->ecc.read_page_raw = nand_read_page_raw;
+               chip->ecc.write_page_raw = nand_write_page_raw;
 
                mtd_set_ooblayout(mtd, &micron_nand_on_die_ooblayout_ops);
        }
index 6e1b209cd5a7a1917e31097850e0293d11198078..5cb4db6f88e39ef65f37bea2de1811b0957ebe4a 100644 (file)
@@ -1532,6 +1532,8 @@ static int omap_write_page_bch(struct mtd_info *mtd, struct nand_chip *chip,
        int ret;
        uint8_t *ecc_calc = chip->buffers->ecccalc;
 
+       nand_prog_page_begin_op(chip, page, 0, NULL, 0);
+
        /* Enable GPMC ecc engine */
        chip->ecc.hwctl(mtd, NAND_ECC_WRITE);
 
@@ -1548,7 +1550,8 @@ static int omap_write_page_bch(struct mtd_info *mtd, struct nand_chip *chip,
 
        /* Write ecc vector to OOB area */
        chip->write_buf(mtd, chip->oob_poi, mtd->oobsize);
-       return 0;
+
+       return nand_prog_page_end_op(chip);
 }
 
 /**
@@ -1582,6 +1585,7 @@ static int omap_write_subpage_bch(struct mtd_info *mtd,
         * ECC is calculated for all subpages but we choose
         * only what we want.
         */
+       nand_prog_page_begin_op(chip, page, 0, NULL, 0);
 
        /* Enable GPMC ECC engine */
        chip->ecc.hwctl(mtd, NAND_ECC_WRITE);
@@ -1614,7 +1618,7 @@ static int omap_write_subpage_bch(struct mtd_info *mtd,
        /* write OOB buffer to NAND device */
        chip->write_buf(mtd, chip->oob_poi, mtd->oobsize);
 
-       return 0;
+       return nand_prog_page_end_op(chip);
 }
 
 /**
@@ -1640,6 +1644,8 @@ static int omap_read_page_bch(struct mtd_info *mtd, struct nand_chip *chip,
        int stat, ret;
        unsigned int max_bitflips = 0;
 
+       nand_read_page_op(chip, page, 0, NULL, 0);
+
        /* Enable GPMC ecc engine */
        chip->ecc.hwctl(mtd, NAND_ECC_READ);
 
index 28bcdf64c1fcb3f8b606b3dd497eb7b2b51ab53e..021374fe59dc50bfe2625d6e30082dcaf029781a 100644 (file)
@@ -1348,10 +1348,10 @@ static int pxa3xx_nand_write_page_hwecc(struct mtd_info *mtd,
                struct nand_chip *chip, const uint8_t *buf, int oob_required,
                int page)
 {
-       chip->write_buf(mtd, buf, mtd->writesize);
+       nand_prog_page_begin_op(chip, page, 0, buf, mtd->writesize);
        chip->write_buf(mtd, chip->oob_poi, mtd->oobsize);
 
-       return 0;
+       return nand_prog_page_end_op(chip);
 }
 
 static int pxa3xx_nand_read_page_hwecc(struct mtd_info *mtd,
@@ -1361,7 +1361,7 @@ static int pxa3xx_nand_read_page_hwecc(struct mtd_info *mtd,
        struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
        struct pxa3xx_nand_info *info = host->info_data;
 
-       chip->read_buf(mtd, buf, mtd->writesize);
+       nand_read_page_op(chip, page, 0, buf, mtd->writesize);
        chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
 
        if (info->retcode == ERR_CORERR && info->use_ecc) {
index e34313ecd9037c4d6682de7af279c90600e98e0f..245d0f39e0aab99e2b322654d80002c4d324479e 100644 (file)
@@ -1725,6 +1725,7 @@ static int qcom_nandc_read_page(struct mtd_info *mtd, struct nand_chip *chip,
        u8 *data_buf, *oob_buf = NULL;
        int ret;
 
+       nand_read_page_op(chip, page, 0, NULL, 0);
        data_buf = buf;
        oob_buf = oob_required ? chip->oob_poi : NULL;
 
@@ -1750,6 +1751,7 @@ static int qcom_nandc_read_page_raw(struct mtd_info *mtd,
        int i, ret;
        int read_loc;
 
+       nand_read_page_op(chip, page, 0, NULL, 0);
        data_buf = buf;
        oob_buf = chip->oob_poi;
 
@@ -1850,6 +1852,8 @@ static int qcom_nandc_write_page(struct mtd_info *mtd, struct nand_chip *chip,
        u8 *data_buf, *oob_buf;
        int i, ret;
 
+       nand_prog_page_begin_op(chip, page, 0, NULL, 0);
+
        clear_read_regs(nandc);
        clear_bam_transaction(nandc);
 
@@ -1902,6 +1906,9 @@ static int qcom_nandc_write_page(struct mtd_info *mtd, struct nand_chip *chip,
 
        free_descs(nandc);
 
+       if (!ret)
+               ret = nand_prog_page_end_op(chip);
+
        return ret;
 }
 
@@ -1916,6 +1923,7 @@ static int qcom_nandc_write_page_raw(struct mtd_info *mtd,
        u8 *data_buf, *oob_buf;
        int i, ret;
 
+       nand_prog_page_begin_op(chip, page, 0, NULL, 0);
        clear_read_regs(nandc);
        clear_bam_transaction(nandc);
 
@@ -1970,6 +1978,9 @@ static int qcom_nandc_write_page_raw(struct mtd_info *mtd,
 
        free_descs(nandc);
 
+       if (!ret)
+               ret = nand_prog_page_end_op(chip);
+
        return ret;
 }
 
index 3c5008a4f5f33accc4fa09d6cc95a2339daf868a..c4e7755448e66eeff8b521381ac936cae24a2cd3 100644 (file)
@@ -614,7 +614,7 @@ static void set_cmd_regs(struct mtd_info *mtd, uint32_t cmd, uint32_t flcmcdr_va
 static int flctl_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
                                uint8_t *buf, int oob_required, int page)
 {
-       chip->read_buf(mtd, buf, mtd->writesize);
+       nand_read_page_op(chip, page, 0, buf, mtd->writesize);
        if (oob_required)
                chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
        return 0;
@@ -624,9 +624,9 @@ static int flctl_write_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
                                  const uint8_t *buf, int oob_required,
                                  int page)
 {
-       chip->write_buf(mtd, buf, mtd->writesize);
+       nand_prog_page_begin_op(chip, page, 0, buf, mtd->writesize);
        chip->write_buf(mtd, chip->oob_poi, mtd->oobsize);
-       return 0;
+       return nand_prog_page_end_op(chip);
 }
 
 static void execmd_read_page_sector(struct mtd_info *mtd, int page_addr)
index da5cc36f4c308ddd03868d8acdb6554a3d6a3839..5c176dee821ecccc6501c305ef2380dcaa33e9e0 100644 (file)
@@ -1245,6 +1245,8 @@ static int sunxi_nfc_hw_ecc_read_page(struct mtd_info *mtd,
        int ret, i, cur_off = 0;
        bool raw_mode = false;
 
+       nand_read_page_op(chip, page, 0, NULL, 0);
+
        sunxi_nfc_hw_ecc_enable(mtd);
 
        for (i = 0; i < ecc->steps; i++) {
@@ -1278,14 +1280,14 @@ static int sunxi_nfc_hw_ecc_read_page_dma(struct mtd_info *mtd,
 {
        int ret;
 
+       nand_read_page_op(chip, page, 0, NULL, 0);
+
        ret = sunxi_nfc_hw_ecc_read_chunks_dma(mtd, buf, oob_required, page,
                                               chip->ecc.steps);
        if (ret >= 0)
                return ret;
 
        /* Fallback to PIO mode */
-       nand_change_read_column_op(chip, 0, NULL, 0, false);
-
        return sunxi_nfc_hw_ecc_read_page(mtd, chip, buf, oob_required, page);
 }
 
@@ -1298,6 +1300,8 @@ static int sunxi_nfc_hw_ecc_read_subpage(struct mtd_info *mtd,
        int ret, i, cur_off = 0;
        unsigned int max_bitflips = 0;
 
+       nand_read_page_op(chip, page, 0, NULL, 0);
+
        sunxi_nfc_hw_ecc_enable(mtd);
 
        for (i = data_offs / ecc->size;
@@ -1329,13 +1333,13 @@ static int sunxi_nfc_hw_ecc_read_subpage_dma(struct mtd_info *mtd,
        int nchunks = DIV_ROUND_UP(data_offs + readlen, chip->ecc.size);
        int ret;
 
+       nand_read_page_op(chip, page, 0, NULL, 0);
+
        ret = sunxi_nfc_hw_ecc_read_chunks_dma(mtd, buf, false, page, nchunks);
        if (ret >= 0)
                return ret;
 
        /* Fallback to PIO mode */
-       nand_change_read_column_op(chip, 0, NULL, 0, false);
-
        return sunxi_nfc_hw_ecc_read_subpage(mtd, chip, data_offs, readlen,
                                             buf, page);
 }
@@ -1348,6 +1352,8 @@ static int sunxi_nfc_hw_ecc_write_page(struct mtd_info *mtd,
        struct nand_ecc_ctrl *ecc = &chip->ecc;
        int ret, i, cur_off = 0;
 
+       nand_prog_page_begin_op(chip, page, 0, NULL, 0);
+
        sunxi_nfc_hw_ecc_enable(mtd);
 
        for (i = 0; i < ecc->steps; i++) {
@@ -1369,7 +1375,7 @@ static int sunxi_nfc_hw_ecc_write_page(struct mtd_info *mtd,
 
        sunxi_nfc_hw_ecc_disable(mtd);
 
-       return 0;
+       return nand_prog_page_end_op(chip);
 }
 
 static int sunxi_nfc_hw_ecc_write_subpage(struct mtd_info *mtd,
@@ -1381,6 +1387,8 @@ static int sunxi_nfc_hw_ecc_write_subpage(struct mtd_info *mtd,
        struct nand_ecc_ctrl *ecc = &chip->ecc;
        int ret, i, cur_off = 0;
 
+       nand_prog_page_begin_op(chip, page, 0, NULL, 0);
+
        sunxi_nfc_hw_ecc_enable(mtd);
 
        for (i = data_offs / ecc->size;
@@ -1399,7 +1407,7 @@ static int sunxi_nfc_hw_ecc_write_subpage(struct mtd_info *mtd,
 
        sunxi_nfc_hw_ecc_disable(mtd);
 
-       return 0;
+       return nand_prog_page_end_op(chip);
 }
 
 static int sunxi_nfc_hw_ecc_write_page_dma(struct mtd_info *mtd,
@@ -1429,6 +1437,8 @@ static int sunxi_nfc_hw_ecc_write_page_dma(struct mtd_info *mtd,
                sunxi_nfc_hw_ecc_set_prot_oob_bytes(mtd, oob, i, !i, page);
        }
 
+       nand_prog_page_begin_op(chip, page, 0, NULL, 0);
+
        sunxi_nfc_hw_ecc_enable(mtd);
        sunxi_nfc_randomizer_config(mtd, page, false);
        sunxi_nfc_randomizer_enable(mtd);
@@ -1459,7 +1469,7 @@ static int sunxi_nfc_hw_ecc_write_page_dma(struct mtd_info *mtd,
                sunxi_nfc_hw_ecc_write_extra_oob(mtd, chip->oob_poi,
                                                 NULL, page);
 
-       return 0;
+       return nand_prog_page_end_op(chip);
 
 pio_fallback:
        return sunxi_nfc_hw_ecc_write_page(mtd, chip, buf, oob_required, page);
@@ -1475,6 +1485,8 @@ static int sunxi_nfc_hw_syndrome_ecc_read_page(struct mtd_info *mtd,
        int ret, i, cur_off = 0;
        bool raw_mode = false;
 
+       nand_read_page_op(chip, page, 0, NULL, 0);
+
        sunxi_nfc_hw_ecc_enable(mtd);
 
        for (i = 0; i < ecc->steps; i++) {
@@ -1511,6 +1523,8 @@ static int sunxi_nfc_hw_syndrome_ecc_write_page(struct mtd_info *mtd,
        struct nand_ecc_ctrl *ecc = &chip->ecc;
        int ret, i, cur_off = 0;
 
+       nand_prog_page_begin_op(chip, page, 0, NULL, 0);
+
        sunxi_nfc_hw_ecc_enable(mtd);
 
        for (i = 0; i < ecc->steps; i++) {
@@ -1532,15 +1546,13 @@ static int sunxi_nfc_hw_syndrome_ecc_write_page(struct mtd_info *mtd,
 
        sunxi_nfc_hw_ecc_disable(mtd);
 
-       return 0;
+       return nand_prog_page_end_op(chip);
 }
 
 static int sunxi_nfc_hw_common_ecc_read_oob(struct mtd_info *mtd,
                                            struct nand_chip *chip,
                                            int page)
 {
-       nand_read_page_op(chip, page, 0, NULL, 0);
-
        chip->pagebuf = -1;
 
        return chip->ecc.read_page(mtd, chip, chip->buffers->databuf, 1, page);
@@ -1552,8 +1564,6 @@ static int sunxi_nfc_hw_common_ecc_write_oob(struct mtd_info *mtd,
 {
        int ret;
 
-       nand_prog_page_begin_op(chip, page, 0, NULL, 0);
-
        chip->pagebuf = -1;
 
        memset(chip->buffers->databuf, 0xff, mtd->writesize);
index 97a300b46b1de2fcf8dc71f8ac21b8a8b776ca5d..c5bee00b7f5e321cb83e35d1056d2c8295eb2aaa 100644 (file)
@@ -580,7 +580,6 @@ static int chip_init(struct device *dev, struct device_node *np)
        ecc->write_page = tango_write_page;
        ecc->read_oob = tango_read_oob;
        ecc->write_oob = tango_write_oob;
-       ecc->options = NAND_ECC_CUSTOM_PAGE_ACCESS;
 
        err = nand_scan_tail(mtd);
        if (err)
index 8037d4b48a056a1c929605705c8f39c2c4400f5b..80d31a58e558cc14582c0b0c97ed77a4615cf454 100644 (file)
@@ -560,7 +560,7 @@ static int vf610_nfc_read_page(struct mtd_info *mtd, struct nand_chip *chip,
        int eccsize = chip->ecc.size;
        int stat;
 
-       vf610_nfc_read_buf(mtd, buf, eccsize);
+       nand_read_page_op(chip, page, 0, buf, eccsize);
        if (oob_required)
                vf610_nfc_read_buf(mtd, chip->oob_poi, mtd->oobsize);
 
@@ -580,7 +580,7 @@ static int vf610_nfc_write_page(struct mtd_info *mtd, struct nand_chip *chip,
 {
        struct vf610_nfc *nfc = mtd_to_nfc(mtd);
 
-       vf610_nfc_write_buf(mtd, buf, mtd->writesize);
+       nand_prog_page_begin_op(chip, page, 0, buf, mtd->writesize);
        if (oob_required)
                vf610_nfc_write_buf(mtd, chip->oob_poi, mtd->oobsize);
 
@@ -588,7 +588,7 @@ static int vf610_nfc_write_page(struct mtd_info *mtd, struct nand_chip *chip,
        nfc->use_hw_ecc = true;
        nfc->write_sz = mtd->writesize + mtd->oobsize;
 
-       return 0;
+       return nand_prog_page_end_op(chip);
 }
 
 static const struct of_device_id vf610_nfc_dt_ids[] = {
index 87595c594b12091432f22f7135b1b61713002bda..264ad362d858ddbcf5a737a14fdccf77cc6e6d2e 100644 (file)
@@ -637,8 +637,7 @@ static int spinand_write_page_hwecc(struct mtd_info *mtd,
        int eccsteps = chip->ecc.steps;
 
        enable_hw_ecc = 1;
-       chip->write_buf(mtd, p, eccsize * eccsteps);
-       return 0;
+       return nand_prog_page_op(chip, page, 0, p, eccsize * eccsteps);
 }
 
 static int spinand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
@@ -653,7 +652,7 @@ static int spinand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
 
        enable_read_hw_ecc = 1;
 
-       chip->read_buf(mtd, p, eccsize * eccsteps);
+       nand_read_page_op(chip, page, 0, p, eccsize * eccsteps);
        if (oob_required)
                chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
 
index fd99d5137d71f489dd6a3f3657ba0c77bfee72e4..e6810f0b8f9e91192b98484cf6a1cd9ee379d325 100644 (file)
@@ -133,12 +133,6 @@ enum nand_ecc_algo {
  */
 #define NAND_ECC_GENERIC_ERASED_CHECK  BIT(0)
 #define NAND_ECC_MAXIMIZE              BIT(1)
-/*
- * If your controller already sends the required NAND commands when
- * reading or writing a page, then the framework is not supposed to
- * send READ0 and SEQIN/PAGEPROG respectively.
- */
-#define NAND_ECC_CUSTOM_PAGE_ACCESS    BIT(2)
 
 /* Bit mask for flags passed to do_nand_read_ecc */
 #define NAND_GET_DEVICE                0x80
@@ -602,11 +596,6 @@ struct nand_ecc_ctrl {
                        int page);
 };
 
-static inline int nand_standard_page_accessors(struct nand_ecc_ctrl *ecc)
-{
-       return !(ecc->options & NAND_ECC_CUSTOM_PAGE_ACCESS);
-}
-
 /**
  * struct nand_buffers - buffer structure for read/write
  * @ecccalc:   buffer pointer for calculated ECC, size is oobsize.