Linux had moved the traditional nand function hooks to an
extra struct nand_legacy. Do the same in barebox for compatibility.

Signed-off-by: Sascha Hauer <[email protected]>
---
 drivers/mtd/nand/atmel_nand.c     |  44 +--
 drivers/mtd/nand/nand_base.c      | 426 +++++++++++++++---------------
 drivers/mtd/nand/nand_bbt.c       |   2 +-
 drivers/mtd/nand/nand_denali.c    |  10 +-
 drivers/mtd/nand/nand_imx.c       |  22 +-
 drivers/mtd/nand/nand_mrvl_nfc.c  |  32 +--
 drivers/mtd/nand/nand_mxs.c       |  40 +--
 drivers/mtd/nand/nand_omap_gpmc.c |  40 +--
 drivers/mtd/nand/nand_orion.c     |  12 +-
 drivers/mtd/nand/nand_s3c24xx.c   |  14 +-
 drivers/mtd/nand/nomadik_nand.c   |   9 +-
 include/linux/mtd/nand.h          |  96 ++++---
 12 files changed, 379 insertions(+), 368 deletions(-)

diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index 90656bcb5d..d86498c86e 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -161,22 +161,22 @@ static int atmel_nand_device_ready(struct nand_chip 
*nand_chip)
  */
 static void atmel_read_buf(struct nand_chip *nand_chip, u8 *buf, int len)
 {
-       readsb(nand_chip->IO_ADDR_R, buf, len);
+       readsb(nand_chip->legacy.IO_ADDR_R, buf, len);
 }
 
 static void atmel_read_buf16(struct nand_chip *nand_chip, u8 *buf, int len)
 {
-       readsw(nand_chip->IO_ADDR_R, buf, len / 2);
+       readsw(nand_chip->legacy.IO_ADDR_R, buf, len / 2);
 }
 
 static void atmel_write_buf(struct nand_chip *nand_chip, const u8 *buf, int 
len)
 {
-       writesb(nand_chip->IO_ADDR_W, buf, len);
+       writesb(nand_chip->legacy.IO_ADDR_W, buf, len);
 }
 
 static void atmel_write_buf16(struct nand_chip *nand_chip, const u8 *buf, int 
len)
 {
-       writesw(nand_chip->IO_ADDR_W, buf, len / 2);
+       writesw(nand_chip->legacy.IO_ADDR_W, buf, len / 2);
 }
 
 /*
@@ -636,8 +636,8 @@ static int atmel_nand_pmecc_read_page(struct nand_chip 
*chip, uint8_t *buf,
        pmecc_writel(host->ecc, CTRL, PMECC_CTRL_ENABLE);
        pmecc_writel(host->ecc, CTRL, PMECC_CTRL_DATA);
 
-       chip->read_buf(chip, buf, eccsize);
-       chip->read_buf(chip, oob, mtd->oobsize);
+       chip->legacy.read_buf(chip, buf, eccsize);
+       chip->legacy.read_buf(chip, oob, mtd->oobsize);
 
        ret = wait_on_timeout(PMECC_MAX_TIMEOUT_MS,
                !(pmecc_readl_relaxed(host->ecc, SR) & PMECC_SR_BUSY));
@@ -671,7 +671,7 @@ static int atmel_nand_pmecc_write_page(struct nand_chip 
*chip, const uint8_t *bu
        pmecc_writel(host->ecc, CTRL, PMECC_CTRL_ENABLE);
        pmecc_writel(host->ecc, CTRL, PMECC_CTRL_DATA);
 
-       chip->write_buf(chip, (u8 *)buf, mtd->writesize);
+       chip->legacy.write_buf(chip, (u8 *)buf, mtd->writesize);
 
        ret = wait_on_timeout(PMECC_MAX_TIMEOUT_MS,
                !(pmecc_readl_relaxed(host->ecc, SR) & PMECC_SR_BUSY));
@@ -689,7 +689,7 @@ static int atmel_nand_pmecc_write_page(struct nand_chip 
*chip, const uint8_t *bu
                                pmecc_readb_ecc_relaxed(host->ecc, i, j);
                }
        }
-       chip->write_buf(chip, chip->oob_poi, mtd->oobsize);
+       chip->legacy.write_buf(chip, chip->oob_poi, mtd->oobsize);
 
        return 0;
 }
@@ -1026,7 +1026,7 @@ static int atmel_nand_read_page(struct nand_chip *chip, 
uint8_t *buf,
 #endif
 
        /* read the page */
-       chip->read_buf(chip, p, eccsize);
+       chip->legacy.read_buf(chip, p, eccsize);
 
        /* move to ECC position if needed */
        if (eccpos[0] != 0) {
@@ -1036,13 +1036,13 @@ static int atmel_nand_read_page(struct nand_chip *chip, 
uint8_t *buf,
                 * NAND_CMD_RNDOUT.
                 * anyway, for small pages, the eccpos[0] == 0
                 */
-               chip->cmdfunc(chip, NAND_CMD_RNDOUT,
+               chip->legacy.cmdfunc(chip, NAND_CMD_RNDOUT,
                                mtd->writesize + eccpos[0], -1);
        }
 
        /* the ECC controller needs to read the ECC just after the data */
        ecc_pos = oob + eccpos[0];
-       chip->read_buf(chip, ecc_pos, eccbytes);
+       chip->legacy.read_buf(chip, ecc_pos, eccbytes);
 
        /* check if there's an error */
        stat = chip->ecc.correct(chip, p, oob, NULL);
@@ -1053,10 +1053,10 @@ static int atmel_nand_read_page(struct nand_chip *chip, 
uint8_t *buf,
                mtd->ecc_stats.corrected += stat;
 
        /* get back to oob start (end of page) */
-       chip->cmdfunc(chip, NAND_CMD_RNDOUT, mtd->writesize, -1);
+       chip->legacy.cmdfunc(chip, NAND_CMD_RNDOUT, mtd->writesize, -1);
 
        /* read the oob */
-       chip->read_buf(chip, oob, mtd->oobsize);
+       chip->legacy.read_buf(chip, oob, mtd->oobsize);
 
        return 0;
 }
@@ -1334,9 +1334,9 @@ static int __init atmel_nand_probe(struct device_d *dev)
        mtd->dev.parent = dev;
 
        /* Set address of NAND IO lines */
-       nand_chip->IO_ADDR_R = host->io_base;
-       nand_chip->IO_ADDR_W = host->io_base;
-       nand_chip->cmd_ctrl = atmel_nand_cmd_ctrl;
+       nand_chip->legacy.IO_ADDR_R = host->io_base;
+       nand_chip->legacy.IO_ADDR_W = host->io_base;
+       nand_chip->legacy.cmd_ctrl = atmel_nand_cmd_ctrl;
 
        if (gpio_is_valid(host->board->rdy_pin)) {
                res = gpio_request(host->board->rdy_pin, "nand_rdy");
@@ -1354,7 +1354,7 @@ static int __init atmel_nand_probe(struct device_d *dev)
                        goto err_no_card;
                }
 
-               nand_chip->dev_ready = atmel_nand_device_ready;
+               nand_chip->legacy.dev_ready = atmel_nand_device_ready;
        }
 
        if (gpio_is_valid(host->board->enable_pin)) {
@@ -1384,7 +1384,7 @@ static int __init atmel_nand_probe(struct device_d *dev)
                nand_chip->ecc.mode = NAND_ECC_HW;
        }
 
-       nand_chip->chip_delay = 40;             /* 40us command delay time */
+       nand_chip->legacy.chip_delay = 40;              /* 40us command delay 
time */
 
        if (IS_ENABLED(CONFIG_NAND_ECC_BCH) &&
                        pdata->ecc_mode == NAND_ECC_SOFT_BCH) {
@@ -1393,11 +1393,11 @@ static int __init atmel_nand_probe(struct device_d *dev)
 
        if (host->board->bus_width_16) {        /* 16-bit bus width */
                nand_chip->options |= NAND_BUSWIDTH_16;
-               nand_chip->read_buf = atmel_read_buf16;
-               nand_chip->write_buf = atmel_write_buf16;
+               nand_chip->legacy.read_buf = atmel_read_buf16;
+               nand_chip->legacy.write_buf = atmel_write_buf16;
        } else {
-               nand_chip->read_buf = atmel_read_buf;
-               nand_chip->write_buf = atmel_write_buf;
+               nand_chip->legacy.read_buf = atmel_read_buf;
+               nand_chip->legacy.write_buf = atmel_write_buf;
        }
 
        atmel_nand_enable(host);
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index f869c21705..1816822e78 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -135,7 +135,7 @@ static void nand_release_device(struct nand_chip *chip)
  */
 static uint8_t nand_read_byte(struct nand_chip *chip)
 {
-       return readb(chip->IO_ADDR_R);
+       return readb(chip->legacy.IO_ADDR_R);
 }
 
 /**
@@ -148,7 +148,7 @@ static uint8_t nand_read_byte(struct nand_chip *chip)
  */
 static uint8_t nand_read_byte16(struct nand_chip *chip)
 {
-       return (uint8_t) cpu_to_le16(readw(chip->IO_ADDR_R));
+       return (uint8_t) cpu_to_le16(readw(chip->legacy.IO_ADDR_R));
 }
 
 /**
@@ -159,7 +159,7 @@ static uint8_t nand_read_byte16(struct nand_chip *chip)
  */
 static u16 nand_read_word(struct nand_chip *chip)
 {
-       return readw(chip->IO_ADDR_R);
+       return readw(chip->legacy.IO_ADDR_R);
 }
 
 /**
@@ -173,7 +173,7 @@ static void nand_select_chip(struct nand_chip *chip, int 
chipnr)
 {
        switch (chipnr) {
        case -1:
-               chip->cmd_ctrl(chip, NAND_CMD_NONE, 0 | NAND_CTRL_CHANGE);
+               chip->legacy.cmd_ctrl(chip, NAND_CMD_NONE, 0 | 
NAND_CTRL_CHANGE);
                break;
        case 0:
                break;
@@ -197,7 +197,7 @@ static __maybe_unused void nand_write_buf(struct nand_chip 
*chip,
        int i;
 
        for (i = 0; i < len; i++)
-               writeb(buf[i], chip->IO_ADDR_W);
+               writeb(buf[i], chip->legacy.IO_ADDR_W);
 }
 
 /**
@@ -213,7 +213,7 @@ static void nand_read_buf(struct nand_chip *chip, uint8_t 
*buf, int len)
        int i;
 
        for (i = 0; i < len; i++)
-               buf[i] = readb(chip->IO_ADDR_R);
+               buf[i] = readb(chip->legacy.IO_ADDR_R);
 }
 
 /**
@@ -232,7 +232,7 @@ static __maybe_unused void nand_write_buf16(struct 
nand_chip *chip,
        len >>= 1;
 
        for (i = 0; i < len; i++)
-               writew(p[i], chip->IO_ADDR_W);
+               writew(p[i], chip->legacy.IO_ADDR_W);
 
 }
 
@@ -251,7 +251,7 @@ static void nand_read_buf16(struct nand_chip *chip, uint8_t 
*buf, int len)
        len >>= 1;
 
        for (i = 0; i < len; i++)
-               p[i] = readw(chip->IO_ADDR_R);
+               p[i] = readw(chip->legacy.IO_ADDR_R);
 }
 
 /**
@@ -278,22 +278,22 @@ static int nand_block_bad(struct nand_chip *chip, loff_t 
ofs, int getchip)
                nand_get_device(chip, FL_READING);
 
                /* Select the NAND device */
-               chip->select_chip(chip, chipnr);
+               chip->legacy.select_chip(chip, chipnr);
        }
 
        do {
                if (chip->options & NAND_BUSWIDTH_16) {
-                       chip->cmdfunc(chip, NAND_CMD_READOOB,
+                       chip->legacy.cmdfunc(chip, NAND_CMD_READOOB,
                                        chip->badblockpos & 0xFE, page);
-                       bad = cpu_to_le16(chip->read_word(chip));
+                       bad = cpu_to_le16(chip->legacy.read_word(chip));
                        if (chip->badblockpos & 0x1)
                                bad >>= 8;
                        else
                                bad &= 0xFF;
                } else {
-                       chip->cmdfunc(chip, NAND_CMD_READOOB, chip->badblockpos,
+                       chip->legacy.cmdfunc(chip, NAND_CMD_READOOB, 
chip->badblockpos,
                                        page);
-                       bad = chip->read_byte(chip);
+                       bad = chip->legacy.read_byte(chip);
                }
 
                if (likely(chip->badblockbits == 8))
@@ -306,7 +306,7 @@ static int nand_block_bad(struct nand_chip *chip, loff_t 
ofs, int getchip)
        } while (!res && i < 2 && (chip->bbt_options & NAND_BBT_SCAN2NDPAGE));
 
        if (getchip) {
-               chip->select_chip(chip, -1);
+               chip->legacy.select_chip(chip, -1);
                nand_release_device(chip);
        }
 
@@ -361,7 +361,7 @@ static __maybe_unused int nand_default_block_markbad(struct 
nand_chip *chip, lof
  *
  * This function performs the generic NAND bad block marking steps (i.e., bad
  * block table(s) and/or marker(s)). We only allow the hardware driver to
- * specify how to write bad block markers to OOB (chip->block_markbad).
+ * specify how to write bad block markers to OOB (chip->legacy.block_markbad).
  *
  * We try operations in the following order:
  *  (1) erase the affected block, to allow OOB marker to be written cleanly
@@ -387,7 +387,7 @@ static int nand_block_markbad_lowlevel(struct nand_chip 
*chip, loff_t ofs)
 
                /* Write bad block marker to OOB */
                nand_get_device(chip, FL_WRITING);
-               ret = chip->block_markbad(chip, ofs);
+               ret = chip->legacy.block_markbad(chip, ofs);
                nand_release_device(chip);
        }
 
@@ -436,7 +436,7 @@ static int nand_block_markgood_lowlevel(struct nand_chip 
*chip, loff_t ofs)
                 * Verify erase succeded. We need to select chip again,
                 * as nand_erase_nand deselected it.
                 */
-               ret = chip->block_bad(chip, ofs, 1);
+               ret = chip->legacy.block_bad(chip, ofs, 1);
                if (ret)
                        return ret;
        }
@@ -468,8 +468,8 @@ static int nand_check_wp(struct nand_chip *chip)
                return 0;
 
        /* Check the WP bit */
-       chip->cmdfunc(chip, NAND_CMD_STATUS, -1, -1);
-       return (chip->read_byte(chip) & NAND_STATUS_WP) ? 0 : 1;
+       chip->legacy.cmdfunc(chip, NAND_CMD_STATUS, -1, -1);
+       return (chip->legacy.read_byte(chip) & NAND_STATUS_WP) ? 0 : 1;
 }
 
 /**
@@ -490,7 +490,7 @@ static int nand_block_checkbad(struct nand_chip *chip, 
loff_t ofs, int getchip,
                return nand_isbad_bbt(chip, ofs, allowbbt);
        }
 
-       return chip->block_bad(chip, ofs, getchip);
+       return chip->legacy.block_bad(chip, ofs, getchip);
 }
 
 /* Wait for the ready pin, after a command. The timeout is caught later. */
@@ -500,7 +500,7 @@ void nand_wait_ready(struct nand_chip *chip)
 
        /* wait until command is processed or timeout occures */
        do {
-               if (chip->dev_ready(chip))
+               if (chip->legacy.dev_ready(chip))
                        break;
        } while (!is_timeout(start, SECOND * 2));
 }
@@ -535,10 +535,10 @@ static void nand_command(struct nand_chip *chip, unsigned 
int command,
                        column -= 256;
                        readcmd = NAND_CMD_READ1;
                }
-               chip->cmd_ctrl(chip, readcmd, ctrl);
+               chip->legacy.cmd_ctrl(chip, readcmd, ctrl);
                ctrl &= ~NAND_CTRL_CHANGE;
        }
-       chip->cmd_ctrl(chip, command, ctrl);
+       chip->legacy.cmd_ctrl(chip, command, ctrl);
 
        /* Address cycle, when necessary */
        ctrl = NAND_CTRL_ALE | NAND_CTRL_CHANGE;
@@ -547,18 +547,18 @@ static void nand_command(struct nand_chip *chip, unsigned 
int command,
                /* Adjust columns for 16 bit buswidth */
                if (chip->options & NAND_BUSWIDTH_16)
                        column >>= 1;
-               chip->cmd_ctrl(chip, column, ctrl);
+               chip->legacy.cmd_ctrl(chip, column, ctrl);
                ctrl &= ~NAND_CTRL_CHANGE;
        }
        if (page_addr != -1) {
-               chip->cmd_ctrl(chip, page_addr, ctrl);
+               chip->legacy.cmd_ctrl(chip, page_addr, ctrl);
                ctrl &= ~NAND_CTRL_CHANGE;
-               chip->cmd_ctrl(chip, page_addr >> 8, ctrl);
+               chip->legacy.cmd_ctrl(chip, page_addr >> 8, ctrl);
                /* One more address cycle for devices > 32MiB */
                if (chip->chipsize > (32 << 20))
-                       chip->cmd_ctrl(chip, page_addr >> 16, ctrl);
+                       chip->legacy.cmd_ctrl(chip, page_addr >> 16, ctrl);
        }
-       chip->cmd_ctrl(chip, NAND_CMD_NONE, NAND_NCE | NAND_CTRL_CHANGE);
+       chip->legacy.cmd_ctrl(chip, NAND_CMD_NONE, NAND_NCE | NAND_CTRL_CHANGE);
 
        /*
         * Program and erase have their own busy handlers status and sequential
@@ -574,14 +574,14 @@ static void nand_command(struct nand_chip *chip, unsigned 
int command,
                return;
 
        case NAND_CMD_RESET:
-               if (chip->dev_ready)
+               if (chip->legacy.dev_ready)
                        break;
-               udelay(chip->chip_delay);
-               chip->cmd_ctrl(chip, NAND_CMD_STATUS,
+               udelay(chip->legacy.chip_delay);
+               chip->legacy.cmd_ctrl(chip, NAND_CMD_STATUS,
                               NAND_CTRL_CLE | NAND_CTRL_CHANGE);
-               chip->cmd_ctrl(chip,
+               chip->legacy.cmd_ctrl(chip,
                               NAND_CMD_NONE, NAND_NCE | NAND_CTRL_CHANGE);
-               while (!(chip->read_byte(chip) & NAND_STATUS_READY))
+               while (!(chip->legacy.read_byte(chip) & NAND_STATUS_READY))
                                ;
                return;
 
@@ -591,8 +591,8 @@ static void nand_command(struct nand_chip *chip, unsigned 
int command,
                 * If we don't have access to the busy pin, we apply the given
                 * command delay
                 */
-               if (!chip->dev_ready) {
-                       udelay(chip->chip_delay);
+               if (!chip->legacy.dev_ready) {
+                       udelay(chip->legacy.chip_delay);
                        return;
                }
        }
@@ -626,7 +626,7 @@ static void nand_command_lp(struct nand_chip *chip, 
unsigned int command,
        }
 
        /* Command latch cycle */
-       chip->cmd_ctrl(chip, command, NAND_NCE | NAND_CLE | NAND_CTRL_CHANGE);
+       chip->legacy.cmd_ctrl(chip, command, NAND_NCE | NAND_CLE | 
NAND_CTRL_CHANGE);
 
        if (column != -1 || page_addr != -1) {
                int ctrl = NAND_CTRL_CHANGE | NAND_NCE | NAND_ALE;
@@ -636,21 +636,21 @@ static void nand_command_lp(struct nand_chip *chip, 
unsigned int command,
                        /* Adjust columns for 16 bit buswidth */
                        if (chip->options & NAND_BUSWIDTH_16)
                                column >>= 1;
-                       chip->cmd_ctrl(chip, column, ctrl);
+                       chip->legacy.cmd_ctrl(chip, column, ctrl);
                        ctrl &= ~NAND_CTRL_CHANGE;
-                       chip->cmd_ctrl(chip, column >> 8, ctrl);
+                       chip->legacy.cmd_ctrl(chip, column >> 8, ctrl);
                }
                if (page_addr != -1) {
-                       chip->cmd_ctrl(chip, page_addr, ctrl);
-                       chip->cmd_ctrl(chip, page_addr >> 8,
+                       chip->legacy.cmd_ctrl(chip, page_addr, ctrl);
+                       chip->legacy.cmd_ctrl(chip, page_addr >> 8,
                                       NAND_NCE | NAND_ALE);
                        /* One more address cycle for devices > 128MiB */
                        if (chip->chipsize > (128 << 20))
-                               chip->cmd_ctrl(chip, page_addr >> 16,
+                               chip->legacy.cmd_ctrl(chip, page_addr >> 16,
                                               NAND_NCE | NAND_ALE);
                }
        }
-       chip->cmd_ctrl(chip, NAND_CMD_NONE, NAND_NCE | NAND_CTRL_CHANGE);
+       chip->legacy.cmd_ctrl(chip, NAND_CMD_NONE, NAND_NCE | NAND_CTRL_CHANGE);
 
        /*
         * Program and erase have their own busy handlers status, sequential
@@ -668,29 +668,29 @@ static void nand_command_lp(struct nand_chip *chip, 
unsigned int command,
                return;
 
        case NAND_CMD_RESET:
-               if (chip->dev_ready)
+               if (chip->legacy.dev_ready)
                        break;
-               udelay(chip->chip_delay);
-               chip->cmd_ctrl(chip, NAND_CMD_STATUS,
+               udelay(chip->legacy.chip_delay);
+               chip->legacy.cmd_ctrl(chip, NAND_CMD_STATUS,
                               NAND_NCE | NAND_CLE | NAND_CTRL_CHANGE);
-               chip->cmd_ctrl(chip, NAND_CMD_NONE,
+               chip->legacy.cmd_ctrl(chip, NAND_CMD_NONE,
                               NAND_NCE | NAND_CTRL_CHANGE);
-               while (!(chip->read_byte(chip) & NAND_STATUS_READY))
+               while (!(chip->legacy.read_byte(chip) & NAND_STATUS_READY))
                                ;
                return;
 
        case NAND_CMD_RNDOUT:
                /* No ready / busy check necessary */
-               chip->cmd_ctrl(chip, NAND_CMD_RNDOUTSTART,
+               chip->legacy.cmd_ctrl(chip, NAND_CMD_RNDOUTSTART,
                               NAND_NCE | NAND_CLE | NAND_CTRL_CHANGE);
-               chip->cmd_ctrl(chip, NAND_CMD_NONE,
+               chip->legacy.cmd_ctrl(chip, NAND_CMD_NONE,
                               NAND_NCE | NAND_CTRL_CHANGE);
                return;
 
        case NAND_CMD_READ0:
-               chip->cmd_ctrl(chip, NAND_CMD_READSTART,
+               chip->legacy.cmd_ctrl(chip, NAND_CMD_READSTART,
                               NAND_NCE | NAND_CLE | NAND_CTRL_CHANGE);
-               chip->cmd_ctrl(chip, NAND_CMD_NONE,
+               chip->legacy.cmd_ctrl(chip, NAND_CMD_NONE,
                               NAND_NCE | NAND_CTRL_CHANGE);
 
                /* This applies to read commands */
@@ -699,8 +699,8 @@ static void nand_command_lp(struct nand_chip *chip, 
unsigned int command,
                 * If we don't have access to the busy pin, we apply the given
                 * command delay.
                 */
-               if (!chip->dev_ready) {
-                       udelay(chip->chip_delay);
+               if (!chip->legacy.dev_ready) {
+                       udelay(chip->legacy.chip_delay);
                        return;
                }
        }
@@ -768,19 +768,19 @@ static int nand_wait(struct nand_chip *chip)
         * any case on any machine. */
        ndelay(100);
 
-       chip->cmdfunc(chip, NAND_CMD_STATUS, -1, -1);
+       chip->legacy.cmdfunc(chip, NAND_CMD_STATUS, -1, -1);
 
        while (!is_timeout(start, timeo)) {
-               if (chip->dev_ready) {
-                       if (chip->dev_ready(chip))
+               if (chip->legacy.dev_ready) {
+                       if (chip->legacy.dev_ready(chip))
                                break;
                } else {
-                       if (chip->read_byte(chip) & NAND_STATUS_READY)
+                       if (chip->legacy.read_byte(chip) & NAND_STATUS_READY)
                                break;
                }
        }
 
-       status = (int)chip->read_byte(chip);
+       status = (int)chip->legacy.read_byte(chip);
        return status;
 }
 
@@ -804,15 +804,15 @@ static int __nand_unlock(struct nand_chip *chip, loff_t 
ofs,
 
        /* Submit address of first page to unlock */
        page = ofs >> chip->page_shift;
-       chip->cmdfunc(chip, NAND_CMD_UNLOCK1, -1, page & chip->pagemask);
+       chip->legacy.cmdfunc(chip, NAND_CMD_UNLOCK1, -1, page & chip->pagemask);
 
        /* Submit address of last page to unlock */
        page = (ofs + len) >> chip->page_shift;
-       chip->cmdfunc(chip, NAND_CMD_UNLOCK2, -1,
+       chip->legacy.cmdfunc(chip, NAND_CMD_UNLOCK2, -1,
                                (page | invert) & chip->pagemask);
 
        /* Call wait ready function */
-       status = chip->waitfunc(chip);
+       status = chip->legacy.waitfunc(chip);
        /* See if device thinks it succeeded */
        if (status & NAND_STATUS_FAIL) {
                pr_debug("%s: error status = 0x%08x\n",
@@ -852,7 +852,7 @@ int nand_unlock(struct nand_chip *chip, loff_t ofs, 
uint64_t len)
        /* Shift to get chip number */
        chipnr = ofs >> chip->chip_shift;
 
-       chip->select_chip(chip, chipnr);
+       chip->legacy.select_chip(chip, chipnr);
 
        /*
         * Reset the chip.
@@ -861,7 +861,7 @@ int nand_unlock(struct nand_chip *chip, loff_t ofs, 
uint64_t len)
         * some operation can also clear the bit 7 of status register
         * eg. erase/program a locked block
         */
-       chip->cmdfunc(chip, NAND_CMD_RESET, -1, -1);
+       chip->legacy.cmdfunc(chip, NAND_CMD_RESET, -1, -1);
 
        /* Check, if it is write protected */
        if (nand_check_wp(chip)) {
@@ -874,7 +874,7 @@ int nand_unlock(struct nand_chip *chip, loff_t ofs, 
uint64_t len)
        ret = __nand_unlock(chip, ofs, len, 0);
 
 out:
-       chip->select_chip(chip, -1);
+       chip->legacy.select_chip(chip, -1);
        nand_release_device(chip);
 
        return ret;
@@ -910,7 +910,7 @@ int nand_lock(struct nand_chip *chip, loff_t ofs, uint64_t 
len)
        /* Shift to get chip number */
        chipnr = ofs >> chip->chip_shift;
 
-       chip->select_chip(chip, chipnr);
+       chip->legacy.select_chip(chip, chipnr);
 
        /*
         * Reset the chip.
@@ -919,7 +919,7 @@ int nand_lock(struct nand_chip *chip, loff_t ofs, uint64_t 
len)
         * some operation can also clear the bit 7 of status register
         * eg. erase/program a locked block
         */
-       chip->cmdfunc(chip, NAND_CMD_RESET, -1, -1);
+       chip->legacy.cmdfunc(chip, NAND_CMD_RESET, -1, -1);
 
        /* Check, if it is write protected */
        if (nand_check_wp(chip)) {
@@ -931,10 +931,10 @@ int nand_lock(struct nand_chip *chip, loff_t ofs, 
uint64_t len)
 
        /* Submit address of first page to lock */
        page = ofs >> chip->page_shift;
-       chip->cmdfunc(chip, NAND_CMD_LOCK, -1, page & chip->pagemask);
+       chip->legacy.cmdfunc(chip, NAND_CMD_LOCK, -1, page & chip->pagemask);
 
        /* Call wait ready function */
-       status = chip->waitfunc(chip);
+       status = chip->legacy.waitfunc(chip);
        /* See if device thinks it succeeded */
        if (status & NAND_STATUS_FAIL) {
                pr_debug("%s: error status = 0x%08x\n",
@@ -946,7 +946,7 @@ int nand_lock(struct nand_chip *chip, loff_t ofs, uint64_t 
len)
        ret = __nand_unlock(chip, ofs, len, 0x1);
 
 out:
-       chip->select_chip(chip, -1);
+       chip->legacy.select_chip(chip, -1);
        nand_release_device(chip);
 
        return ret;
@@ -1095,9 +1095,9 @@ static __maybe_unused int nand_read_page_raw(struct 
nand_chip *chip,
                                             uint8_t *buf, int oob_required,
                                             int page)
 {
-       chip->read_buf(chip, buf, chip->mtd.writesize);
+       chip->legacy.read_buf(chip, buf, chip->mtd.writesize);
        if (oob_required)
-               chip->read_buf(chip, chip->oob_poi, chip->mtd.oobsize);
+               chip->legacy.read_buf(chip, chip->oob_poi, chip->mtd.oobsize);
        return 0;
 }
 
@@ -1120,26 +1120,26 @@ static __maybe_unused int 
nand_read_page_raw_syndrome(struct nand_chip *chip,
        int steps, size;
 
        for (steps = chip->ecc.steps; steps > 0; steps--) {
-               chip->read_buf(chip, buf, eccsize);
+               chip->legacy.read_buf(chip, buf, eccsize);
                buf += eccsize;
 
                if (chip->ecc.prepad) {
-                       chip->read_buf(chip, oob, chip->ecc.prepad);
+                       chip->legacy.read_buf(chip, oob, chip->ecc.prepad);
                        oob += chip->ecc.prepad;
                }
 
-               chip->read_buf(chip, oob, eccbytes);
+               chip->legacy.read_buf(chip, oob, eccbytes);
                oob += eccbytes;
 
                if (chip->ecc.postpad) {
-                       chip->read_buf(chip, oob, chip->ecc.postpad);
+                       chip->legacy.read_buf(chip, oob, chip->ecc.postpad);
                        oob += chip->ecc.postpad;
                }
        }
 
        size = chip->mtd.oobsize - (oob - chip->oob_poi);
        if (size)
-               chip->read_buf(chip, oob, size);
+               chip->legacy.read_buf(chip, oob, size);
 
        return 0;
 }
@@ -1229,10 +1229,10 @@ static __maybe_unused int nand_read_subpage(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(chip, NAND_CMD_RNDOUT, data_col_addr, -1);
+               chip->legacy.cmdfunc(chip, NAND_CMD_RNDOUT, data_col_addr, -1);
 
        p = bufpoi + data_col_addr;
-       chip->read_buf(chip, p, datafrag_len);
+       chip->legacy.read_buf(chip, p, datafrag_len);
 
        /* Calculate ECC */
        for (i = 0; i < eccfrag_len ; i += chip->ecc.bytes, p += chip->ecc.size)
@@ -1250,8 +1250,8 @@ static __maybe_unused int nand_read_subpage(struct 
nand_chip *chip,
                }
        }
        if (gaps) {
-               chip->cmdfunc(chip, NAND_CMD_RNDOUT, mtd->writesize, -1);
-               chip->read_buf(chip, chip->oob_poi, mtd->oobsize);
+               chip->legacy.cmdfunc(chip, NAND_CMD_RNDOUT, mtd->writesize, -1);
+               chip->legacy.read_buf(chip, chip->oob_poi, mtd->oobsize);
        } else {
                /*
                 * Send the command to read the particular ECC bytes take care
@@ -1266,9 +1266,9 @@ static __maybe_unused int nand_read_subpage(struct 
nand_chip *chip,
                if (eccpos[index + (num_steps * chip->ecc.bytes)] & (busw - 1))
                        aligned_len++;
 
-               chip->cmdfunc(chip, NAND_CMD_RNDOUT,
+               chip->legacy.cmdfunc(chip, NAND_CMD_RNDOUT,
                                        mtd->writesize + aligned_pos, -1);
-               chip->read_buf(chip, &chip->oob_poi[aligned_pos], aligned_len);
+               chip->legacy.read_buf(chip, &chip->oob_poi[aligned_pos], 
aligned_len);
        }
 
        for (i = 0; i < eccfrag_len; i++)
@@ -1315,10 +1315,10 @@ static __maybe_unused int nand_read_page_hwecc(struct 
nand_chip *chip,
 
        for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
                chip->ecc.hwctl(chip, NAND_ECC_READ);
-               chip->read_buf(chip, p, eccsize);
+               chip->legacy.read_buf(chip, p, eccsize);
                chip->ecc.calculate(chip, p, &ecc_calc[i]);
        }
-       chip->read_buf(chip, chip->oob_poi, mtd->oobsize);
+       chip->legacy.read_buf(chip, chip->oob_poi, mtd->oobsize);
 
        for (i = 0; i < chip->ecc.total; i++)
                ecc_code[i] = chip->oob_poi[eccpos[i]];
@@ -1368,9 +1368,9 @@ static __maybe_unused int 
nand_read_page_hwecc_oob_first(struct nand_chip *chip,
        unsigned int max_bitflips = 0;
 
        /* Read the OOB area first */
-       chip->cmdfunc(chip, NAND_CMD_READOOB, 0, page);
-       chip->read_buf(chip, chip->oob_poi, mtd->oobsize);
-       chip->cmdfunc(chip, NAND_CMD_READ0, 0, page);
+       chip->legacy.cmdfunc(chip, NAND_CMD_READOOB, 0, page);
+       chip->legacy.read_buf(chip, chip->oob_poi, mtd->oobsize);
+       chip->legacy.cmdfunc(chip, NAND_CMD_READ0, 0, page);
 
        for (i = 0; i < chip->ecc.total; i++)
                ecc_code[i] = chip->oob_poi[eccpos[i]];
@@ -1379,7 +1379,7 @@ static __maybe_unused int 
nand_read_page_hwecc_oob_first(struct nand_chip *chip,
                int stat;
 
                chip->ecc.hwctl(chip, NAND_ECC_READ);
-               chip->read_buf(chip, p, eccsize);
+               chip->legacy.read_buf(chip, p, eccsize);
                chip->ecc.calculate(chip, p, &ecc_calc[i]);
 
                stat = chip->ecc.correct(chip, p, &ecc_code[i], NULL);
@@ -1419,15 +1419,15 @@ static __maybe_unused  int 
nand_read_page_syndrome(struct nand_chip *chip,
                int stat;
 
                chip->ecc.hwctl(chip, NAND_ECC_READ);
-               chip->read_buf(chip, p, eccsize);
+               chip->legacy.read_buf(chip, p, eccsize);
 
                if (chip->ecc.prepad) {
-                       chip->read_buf(chip, oob, chip->ecc.prepad);
+                       chip->legacy.read_buf(chip, oob, chip->ecc.prepad);
                        oob += chip->ecc.prepad;
                }
 
                chip->ecc.hwctl(chip, NAND_ECC_READSYN);
-               chip->read_buf(chip, oob, eccbytes);
+               chip->legacy.read_buf(chip, oob, eccbytes);
                stat = chip->ecc.correct(chip, p, oob, NULL);
 
                if (stat < 0) {
@@ -1440,7 +1440,7 @@ static __maybe_unused  int nand_read_page_syndrome(struct 
nand_chip *chip,
                oob += eccbytes;
 
                if (chip->ecc.postpad) {
-                       chip->read_buf(chip, oob, chip->ecc.postpad);
+                       chip->legacy.read_buf(chip, oob, chip->ecc.postpad);
                        oob += chip->ecc.postpad;
                }
        }
@@ -1448,7 +1448,7 @@ static __maybe_unused  int nand_read_page_syndrome(struct 
nand_chip *chip,
        /* Calculate remaining oob bytes */
        i = mtd->oobsize - (oob - chip->oob_poi);
        if (i)
-               chip->read_buf(chip, oob, i);
+               chip->legacy.read_buf(chip, oob, i);
 
        return max_bitflips;
 }
@@ -1527,7 +1527,7 @@ static int nand_do_read_ops(struct nand_chip *chip, 
loff_t from,
        stats = mtd->ecc_stats;
 
        chipnr = (int)(from >> chip->chip_shift);
-       chip->select_chip(chip, chipnr);
+       chip->legacy.select_chip(chip, chipnr);
 
        realpage = (int)(from >> chip->page_shift);
        page = realpage & chip->pagemask;
@@ -1546,7 +1546,7 @@ static int nand_do_read_ops(struct nand_chip *chip, 
loff_t from,
                if (realpage != chip->pagebuf || oob) {
                        bufpoi = aligned ? buf : chip->buffers->databuf;
 
-                       chip->cmdfunc(chip, NAND_CMD_READ0, 0x00, page);
+                       chip->legacy.cmdfunc(chip, NAND_CMD_READ0, 0x00, page);
 
                        /*
                         * Now read the page into the buffer.  Absent an error,
@@ -1600,8 +1600,8 @@ static int nand_do_read_ops(struct nand_chip *chip, 
loff_t from,
 
                        if (chip->options & NAND_NEED_READRDY) {
                                /* Apply delay or wait for ready/busy pin */
-                               if (!chip->dev_ready)
-                                       udelay(chip->chip_delay);
+                               if (!chip->legacy.dev_ready)
+                                       udelay(chip->legacy.chip_delay);
                                else
                                        nand_wait_ready(chip);
                        }
@@ -1626,11 +1626,11 @@ static int nand_do_read_ops(struct nand_chip *chip, 
loff_t from,
                /* Check, if we cross a chip boundary */
                if (!page) {
                        chipnr++;
-                       chip->select_chip(chip, -1);
-                       chip->select_chip(chip, chipnr);
+                       chip->legacy.select_chip(chip, -1);
+                       chip->legacy.select_chip(chip, chipnr);
                }
        }
-       chip->select_chip(chip, -1);
+       chip->legacy.select_chip(chip, -1);
 
        ops->retlen = ops->len - (size_t) readlen;
        if (oob)
@@ -1685,8 +1685,8 @@ static __maybe_unused int nand_read_oob_std(struct 
nand_chip *chip, int page)
        if (!IS_ENABLED(CONFIG_NAND_READ_OOB))
                return -ENOTSUPP;
 
-       chip->cmdfunc(chip, NAND_CMD_READOOB, 0, page);
-       chip->read_buf(chip, chip->oob_poi, chip->mtd.oobsize);
+       chip->legacy.cmdfunc(chip, NAND_CMD_READOOB, 0, page);
+       chip->legacy.read_buf(chip, chip->oob_poi, chip->mtd.oobsize);
        return 0;
 }
 
@@ -1710,23 +1710,23 @@ static __maybe_unused  int 
nand_read_oob_syndrome(struct nand_chip *chip,
        if (!IS_ENABLED(CONFIG_NAND_READ_OOB))
                return -ENOTSUPP;
 
-       chip->cmdfunc(chip, NAND_CMD_READ0, chip->ecc.size, page);
+       chip->legacy.cmdfunc(chip, NAND_CMD_READ0, chip->ecc.size, page);
        for (i = 0; i < chip->ecc.steps; i++) {
                if (sndrnd) {
                        pos = eccsize + i * (eccsize + chunk);
                        if (chip->mtd.writesize > 512)
-                               chip->cmdfunc(chip, NAND_CMD_RNDOUT, pos, -1);
+                               chip->legacy.cmdfunc(chip, NAND_CMD_RNDOUT, 
pos, -1);
                        else
-                               chip->cmdfunc(chip, NAND_CMD_READ0, pos, page);
+                               chip->legacy.cmdfunc(chip, NAND_CMD_READ0, pos, 
page);
                } else
                        sndrnd = 1;
                toread = min_t(int, length, chunk);
-               chip->read_buf(chip, bufpoi, toread);
+               chip->legacy.read_buf(chip, bufpoi, toread);
                bufpoi += toread;
                length -= toread;
        }
        if (length > 0)
-               chip->read_buf(chip, bufpoi, length);
+               chip->legacy.read_buf(chip, bufpoi, length);
 
        return 0;
 }
@@ -1746,12 +1746,12 @@ static __maybe_unused int nand_write_oob_std(struct 
nand_chip *chip, int page)
        if (!IS_ENABLED(CONFIG_NAND_READ_OOB) || !IS_ENABLED(CONFIG_MTD_WRITE))
                return -ENOTSUPP;
 
-       chip->cmdfunc(chip, NAND_CMD_SEQIN, chip->mtd.writesize, page);
-       chip->write_buf(chip, buf, length);
+       chip->legacy.cmdfunc(chip, NAND_CMD_SEQIN, chip->mtd.writesize, page);
+       chip->legacy.write_buf(chip, buf, length);
        /* Send command to program the OOB data */
-       chip->cmdfunc(chip, NAND_CMD_PAGEPROG, -1, -1);
+       chip->legacy.cmdfunc(chip, NAND_CMD_PAGEPROG, -1, -1);
 
-       status = chip->waitfunc(chip);
+       status = chip->legacy.waitfunc(chip);
 
        return status & NAND_STATUS_FAIL ? -EIO : 0;
 }
@@ -1784,7 +1784,7 @@ static __maybe_unused  int nand_write_oob_syndrome(struct 
nand_chip *chip, int p
        } else
                pos = eccsize;
 
-       chip->cmdfunc(chip, NAND_CMD_SEQIN, pos, page);
+       chip->legacy.cmdfunc(chip, NAND_CMD_SEQIN, pos, page);
        for (i = 0; i < steps; i++) {
                if (sndcmd) {
                        if (chip->mtd.writesize <= 512) {
@@ -1793,26 +1793,26 @@ static __maybe_unused  int 
nand_write_oob_syndrome(struct nand_chip *chip, int p
                                len = eccsize;
                                while (len > 0) {
                                        int num = min_t(int, len, 4);
-                                       chip->write_buf(chip, (uint8_t *)&fill,
+                                       chip->legacy.write_buf(chip, (uint8_t 
*)&fill,
                                                        num);
                                        len -= num;
                                }
                        } else {
                                pos = eccsize + i * (eccsize + chunk);
-                               chip->cmdfunc(chip, NAND_CMD_RNDIN, pos, -1);
+                               chip->legacy.cmdfunc(chip, NAND_CMD_RNDIN, pos, 
-1);
                        }
                } else
                        sndcmd = 1;
                len = min_t(int, length, chunk);
-               chip->write_buf(chip, bufpoi, len);
+               chip->legacy.write_buf(chip, bufpoi, len);
                bufpoi += len;
                length -= len;
        }
        if (length > 0)
-               chip->write_buf(chip, bufpoi, length);
+               chip->legacy.write_buf(chip, bufpoi, length);
 
-       chip->cmdfunc(chip, NAND_CMD_PAGEPROG, -1, -1);
-       status = chip->waitfunc(chip);
+       chip->legacy.cmdfunc(chip, NAND_CMD_PAGEPROG, -1, -1);
+       status = chip->legacy.waitfunc(chip);
 
        return status & NAND_STATUS_FAIL ? -EIO : 0;
 }
@@ -1865,7 +1865,7 @@ static int nand_do_read_oob(struct nand_chip *chip, 
loff_t from,
        }
 
        chipnr = (int)(from >> chip->chip_shift);
-       chip->select_chip(chip, chipnr);
+       chip->legacy.select_chip(chip, chipnr);
 
        /* Shift to get page */
        realpage = (int)(from >> chip->page_shift);
@@ -1885,8 +1885,8 @@ static int nand_do_read_oob(struct nand_chip *chip, 
loff_t from,
 
                if (chip->options & NAND_NEED_READRDY) {
                        /* Apply delay or wait for ready/busy pin */
-                       if (!chip->dev_ready)
-                               udelay(chip->chip_delay);
+                       if (!chip->legacy.dev_ready)
+                               udelay(chip->legacy.chip_delay);
                        else
                                nand_wait_ready(chip);
                }
@@ -1902,11 +1902,11 @@ static int nand_do_read_oob(struct nand_chip *chip, 
loff_t from,
                /* Check, if we cross a chip boundary */
                if (!page) {
                        chipnr++;
-                       chip->select_chip(chip, -1);
-                       chip->select_chip(chip, chipnr);
+                       chip->legacy.select_chip(chip, -1);
+                       chip->legacy.select_chip(chip, chipnr);
                }
        }
-       chip->select_chip(chip, -1);
+       chip->legacy.select_chip(chip, -1);
 
        ops->oobretlen = ops->ooblen - readlen;
 
@@ -1983,9 +1983,9 @@ static __maybe_unused int nand_write_page_raw(struct 
nand_chip *chip,
        if (!IS_ENABLED(CONFIG_MTD_WRITE))
                return -ENOTSUPP;
 
-       chip->write_buf(chip, buf, chip->mtd.writesize);
+       chip->legacy.write_buf(chip, buf, chip->mtd.writesize);
        if (oob_required)
-               chip->write_buf(chip, chip->oob_poi, chip->mtd.oobsize);
+               chip->legacy.write_buf(chip, chip->oob_poi, chip->mtd.oobsize);
 
        return 0;
 }
@@ -2011,26 +2011,26 @@ static __maybe_unused  int 
nand_write_page_raw_syndrome(struct nand_chip *chip,
                return -ENOTSUPP;
 
        for (steps = chip->ecc.steps; steps > 0; steps--) {
-               chip->write_buf(chip, buf, eccsize);
+               chip->legacy.write_buf(chip, buf, eccsize);
                buf += eccsize;
 
                if (chip->ecc.prepad) {
-                       chip->write_buf(chip, oob, chip->ecc.prepad);
+                       chip->legacy.write_buf(chip, oob, chip->ecc.prepad);
                        oob += chip->ecc.prepad;
                }
 
-               chip->read_buf(chip, oob, eccbytes);
+               chip->legacy.read_buf(chip, oob, eccbytes);
                oob += eccbytes;
 
                if (chip->ecc.postpad) {
-                       chip->write_buf(chip, oob, chip->ecc.postpad);
+                       chip->legacy.write_buf(chip, oob, chip->ecc.postpad);
                        oob += chip->ecc.postpad;
                }
        }
 
        size = chip->mtd.oobsize - (oob - chip->oob_poi);
        if (size)
-               chip->write_buf(chip, oob, size);
+               chip->legacy.write_buf(chip, oob, size);
 
        return 0;
 }
@@ -2086,14 +2086,14 @@ static __maybe_unused int nand_write_page_hwecc(struct 
nand_chip *chip,
 
        for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
                chip->ecc.hwctl(chip, NAND_ECC_WRITE);
-               chip->write_buf(chip, p, eccsize);
+               chip->legacy.write_buf(chip, p, eccsize);
                chip->ecc.calculate(chip, p, &ecc_calc[i]);
        }
 
        for (i = 0; i < chip->ecc.total; i++)
                chip->oob_poi[eccpos[i]] = ecc_calc[i];
 
-       chip->write_buf(chip, chip->oob_poi, chip->mtd.oobsize);
+       chip->legacy.write_buf(chip, chip->oob_poi, chip->mtd.oobsize);
 
        return 0;
 }
@@ -2131,7 +2131,7 @@ static __maybe_unused int nand_write_subpage_hwecc(struct 
nand_chip *chip,
                chip->ecc.hwctl(chip, NAND_ECC_WRITE);
 
                /* write data (untouched subpages already masked by 0xFF) */
-               chip->write_buf(chip, data_buf, ecc_size);
+               chip->legacy.write_buf(chip, data_buf, ecc_size);
 
                /* mask ECC of un-touched subpages by padding 0xFF */
                if ((step < start_step) || (step > end_step))
@@ -2156,7 +2156,7 @@ static __maybe_unused int nand_write_subpage_hwecc(struct 
nand_chip *chip,
                chip->oob_poi[eccpos[i]] = ecc_calc[i];
 
        /* write OOB buffer to NAND device */
-       chip->write_buf(chip, chip->oob_poi, chip->mtd.oobsize);
+       chip->legacy.write_buf(chip, chip->oob_poi, chip->mtd.oobsize);
 
        return 0;
 }
@@ -2187,19 +2187,19 @@ static __maybe_unused int 
nand_write_page_syndrome(struct nand_chip *chip,
        for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
 
                chip->ecc.hwctl(chip, NAND_ECC_WRITE);
-               chip->write_buf(chip, p, eccsize);
+               chip->legacy.write_buf(chip, p, eccsize);
 
                if (chip->ecc.prepad) {
-                       chip->write_buf(chip, oob, chip->ecc.prepad);
+                       chip->legacy.write_buf(chip, oob, chip->ecc.prepad);
                        oob += chip->ecc.prepad;
                }
 
                chip->ecc.calculate(chip, p, oob);
-               chip->write_buf(chip, oob, eccbytes);
+               chip->legacy.write_buf(chip, oob, eccbytes);
                oob += eccbytes;
 
                if (chip->ecc.postpad) {
-                       chip->write_buf(chip, oob, chip->ecc.postpad);
+                       chip->legacy.write_buf(chip, oob, chip->ecc.postpad);
                        oob += chip->ecc.postpad;
                }
        }
@@ -2207,7 +2207,7 @@ static __maybe_unused int nand_write_page_syndrome(struct 
nand_chip *chip,
        /* Calculate remaining oob bytes */
        i = chip->mtd.oobsize - (oob - chip->oob_poi);
        if (i)
-               chip->write_buf(chip, oob, i);
+               chip->legacy.write_buf(chip, oob, i);
 
        return 0;
 }
@@ -2239,7 +2239,7 @@ static int nand_write_page(struct nand_chip *chip,
        else
                subpage = 0;
 
-       chip->cmdfunc(chip, NAND_CMD_SEQIN, 0x00, page);
+       chip->legacy.cmdfunc(chip, NAND_CMD_SEQIN, 0x00, page);
 
        if (unlikely(raw))
                status = chip->ecc.write_page_raw(chip, buf,
@@ -2261,14 +2261,14 @@ static int nand_write_page(struct nand_chip *chip,
 
        if (!cached || !NAND_HAS_CACHEPROG(chip)) {
 
-               chip->cmdfunc(chip, NAND_CMD_PAGEPROG, -1, -1);
-               status = chip->waitfunc(chip);
+               chip->legacy.cmdfunc(chip, NAND_CMD_PAGEPROG, -1, -1);
+               status = chip->legacy.waitfunc(chip);
 
                if (status & NAND_STATUS_FAIL)
                        return -EIO;
        } else {
-               chip->cmdfunc(chip, NAND_CMD_CACHEDPROG, -1, -1);
-               status = chip->waitfunc(chip);
+               chip->legacy.cmdfunc(chip, NAND_CMD_CACHEDPROG, -1, -1);
+               status = chip->legacy.waitfunc(chip);
        }
 
        return 0;
@@ -2364,7 +2364,7 @@ static int nand_do_write_ops(struct nand_chip *chip, 
loff_t to,
        column = to & (mtd->writesize - 1);
 
        chipnr = (int)(to >> chip->chip_shift);
-       chip->select_chip(chip, chipnr);
+       chip->legacy.select_chip(chip, chipnr);
 
        /* Check, if it is write protected */
        if (nand_check_wp(chip)) {
@@ -2431,8 +2431,8 @@ static int nand_do_write_ops(struct nand_chip *chip, 
loff_t to,
                /* Check, if we cross a chip boundary */
                if (!page) {
                        chipnr++;
-                       chip->select_chip(chip, -1);
-                       chip->select_chip(chip, chipnr);
+                       chip->legacy.select_chip(chip, -1);
+                       chip->legacy.select_chip(chip, chipnr);
                }
        }
 
@@ -2441,7 +2441,7 @@ static int nand_do_write_ops(struct nand_chip *chip, 
loff_t to,
                ops->oobretlen = ops->ooblen;
 
 err_out:
-       chip->select_chip(chip, -1);
+       chip->legacy.select_chip(chip, -1);
        return ret;
 }
 
@@ -2525,7 +2525,7 @@ static int nand_do_write_oob(struct nand_chip *chip, 
loff_t to,
        }
 
        chipnr = (int)(to >> chip->chip_shift);
-       chip->select_chip(chip, chipnr);
+       chip->legacy.select_chip(chip, chipnr);
 
        /* Shift to get page */
        page = (int)(to >> chip->page_shift);
@@ -2536,11 +2536,11 @@ static int nand_do_write_oob(struct nand_chip *chip, 
loff_t to,
         * if we don't do this. I have no clue why, but I seem to have 'fixed'
         * it in the doc2000 driver in August 1999.  dwmw2.
         */
-       chip->cmdfunc(chip, NAND_CMD_RESET, -1, -1);
+       chip->legacy.cmdfunc(chip, NAND_CMD_RESET, -1, -1);
 
        /* Check, if it is write protected */
        if (nand_check_wp(chip)) {
-               chip->select_chip(chip, -1);
+               chip->legacy.select_chip(chip, -1);
                return -EROFS;
        }
 
@@ -2555,7 +2555,7 @@ static int nand_do_write_oob(struct nand_chip *chip, 
loff_t to,
        else
                status = chip->ecc.write_oob(chip, page & chip->pagemask);
 
-       chip->select_chip(chip, -1);
+       chip->legacy.select_chip(chip, -1);
 
        if (status)
                return status;
@@ -2624,8 +2624,8 @@ static void single_erase_cmd(struct nand_chip *chip, int 
page)
                return;
 
        /* Send commands to erase a block */
-       chip->cmdfunc(chip, NAND_CMD_ERASE1, -1, page);
-       chip->cmdfunc(chip, NAND_CMD_ERASE2, -1, -1);
+       chip->legacy.cmdfunc(chip, NAND_CMD_ERASE1, -1, page);
+       chip->legacy.cmdfunc(chip, NAND_CMD_ERASE2, -1, -1);
 }
 
 /**
@@ -2680,7 +2680,7 @@ int nand_erase_nand(struct nand_chip *chip, struct 
erase_info *instr,
        pages_per_block = 1 << (chip->phys_erase_shift - chip->page_shift);
 
        /* Select the NAND device */
-       chip->select_chip(chip, chipnr);
+       chip->legacy.select_chip(chip, chipnr);
 
        /* Check, if it is write protected */
        if (nand_check_wp(chip)) {
@@ -2714,7 +2714,7 @@ int nand_erase_nand(struct nand_chip *chip, struct 
erase_info *instr,
 
                single_erase_cmd(chip, page & chip->pagemask);
 
-               status = chip->waitfunc(chip);
+               status = chip->legacy.waitfunc(chip);
 
                /* See if block erase succeeded */
                if (status & NAND_STATUS_FAIL) {
@@ -2733,8 +2733,8 @@ int nand_erase_nand(struct nand_chip *chip, struct 
erase_info *instr,
                /* Check, if we cross a chip boundary */
                if (len && !(page & chip->pagemask)) {
                        chipnr++;
-                       chip->select_chip(chip, -1);
-                       chip->select_chip(chip, chipnr);
+                       chip->legacy.select_chip(chip, -1);
+                       chip->legacy.select_chip(chip, chipnr);
                }
        }
 
@@ -2742,7 +2742,7 @@ int nand_erase_nand(struct nand_chip *chip, struct 
erase_info *instr,
 
 erase_exit:
        /* Deselect and wake up anyone waiting on the device */
-       chip->select_chip(chip, -1);
+       chip->legacy.select_chip(chip, -1);
        nand_release_device(chip);
 
        /* Return more or less happy */
@@ -2844,9 +2844,9 @@ static int nand_onfi_set_features(struct nand_chip *chip,
              & ONFI_OPT_CMD_SET_GET_FEATURES))
                return -EINVAL;
 
-       chip->cmdfunc(chip, NAND_CMD_SET_FEATURES, addr, -1);
-       chip->write_buf(chip, subfeature_param, ONFI_SUBFEATURE_PARAM_LEN);
-       status = chip->waitfunc(chip);
+       chip->legacy.cmdfunc(chip, NAND_CMD_SET_FEATURES, addr, -1);
+       chip->legacy.write_buf(chip, subfeature_param, 
ONFI_SUBFEATURE_PARAM_LEN);
+       status = chip->legacy.waitfunc(chip);
        if (status & NAND_STATUS_FAIL)
                return -EIO;
        return 0;
@@ -2870,8 +2870,8 @@ static int nand_onfi_get_features(struct nand_chip *chip,
        /* clear the sub feature parameters */
        memset(subfeature_param, 0, ONFI_SUBFEATURE_PARAM_LEN);
 
-       chip->cmdfunc(chip, NAND_CMD_GET_FEATURES, addr, -1);
-       chip->read_buf(chip, subfeature_param, ONFI_SUBFEATURE_PARAM_LEN);
+       chip->legacy.cmdfunc(chip, NAND_CMD_GET_FEATURES, addr, -1);
+       chip->legacy.read_buf(chip, subfeature_param, 
ONFI_SUBFEATURE_PARAM_LEN);
        return 0;
 }
 
@@ -2879,40 +2879,40 @@ static int nand_onfi_get_features(struct nand_chip 
*chip,
 static void nand_set_defaults(struct nand_chip *chip, int busw)
 {
        /* check for proper chip_delay setup, set 20us if not */
-       if (!chip->chip_delay)
-               chip->chip_delay = 20;
+       if (!chip->legacy.chip_delay)
+               chip->legacy.chip_delay = 20;
 
        /* check, if a user supplied command function given */
-       if (chip->cmdfunc == NULL)
-               chip->cmdfunc = nand_command;
+       if (chip->legacy.cmdfunc == NULL)
+               chip->legacy.cmdfunc = nand_command;
 
        /* check, if a user supplied wait function given */
-       if (chip->waitfunc == NULL)
-               chip->waitfunc = nand_wait;
+       if (chip->legacy.waitfunc == NULL)
+               chip->legacy.waitfunc = nand_wait;
 
-       if (!chip->select_chip)
-               chip->select_chip = nand_select_chip;
+       if (!chip->legacy.select_chip)
+               chip->legacy.select_chip = nand_select_chip;
 
        /* set for ONFI nand */
-       if (!chip->onfi_set_features)
-               chip->onfi_set_features = nand_onfi_set_features;
-       if (!chip->onfi_get_features)
-               chip->onfi_get_features = nand_onfi_get_features;
-
-       if (!chip->read_byte)
-               chip->read_byte = busw ? nand_read_byte16 : nand_read_byte;
-       if (!chip->read_word)
-               chip->read_word = nand_read_word;
-       if (!chip->block_bad)
-               chip->block_bad = nand_block_bad;
+       if (!chip->legacy.set_features)
+               chip->legacy.set_features = nand_onfi_set_features;
+       if (!chip->legacy.get_features)
+               chip->legacy.get_features = nand_onfi_get_features;
+
+       if (!chip->legacy.read_byte)
+               chip->legacy.read_byte = busw ? nand_read_byte16 : 
nand_read_byte;
+       if (!chip->legacy.read_word)
+               chip->legacy.read_word = nand_read_word;
+       if (!chip->legacy.block_bad)
+               chip->legacy.block_bad = nand_block_bad;
 #ifdef CONFIG_MTD_WRITE
-       if (!chip->block_markbad)
-               chip->block_markbad = nand_default_block_markbad;
-       if (!chip->write_buf)
-               chip->write_buf = busw ? nand_write_buf16 : nand_write_buf;
+       if (!chip->legacy.block_markbad)
+               chip->legacy.block_markbad = nand_default_block_markbad;
+       if (!chip->legacy.write_buf)
+               chip->legacy.write_buf = busw ? nand_write_buf16 : 
nand_write_buf;
 #endif
-       if (!chip->read_buf)
-               chip->read_buf = busw ? nand_read_buf16 : nand_read_buf;
+       if (!chip->legacy.read_buf)
+               chip->legacy.read_buf = busw ? nand_read_buf16 : nand_read_buf;
 #ifdef CONFIG_NAND_BBT
        if (!chip->scan_bbt)
                chip->scan_bbt = nand_default_bbt;
@@ -2964,15 +2964,15 @@ static int nand_flash_detect_onfi(struct nand_chip 
*chip, int *busw)
        int val;
 
        /* Try ONFI for unknown chip or LP */
-       chip->cmdfunc(chip, NAND_CMD_READID, 0x20, -1);
-       if (chip->read_byte(chip) != 'O' || chip->read_byte(chip) != 'N' ||
-               chip->read_byte(chip) != 'F' || chip->read_byte(chip) != 'I')
+       chip->legacy.cmdfunc(chip, NAND_CMD_READID, 0x20, -1);
+       if (chip->legacy.read_byte(chip) != 'O' || chip->legacy.read_byte(chip) 
!= 'N' ||
+               chip->legacy.read_byte(chip) != 'F' || 
chip->legacy.read_byte(chip) != 'I')
                return 0;
 
-       chip->cmdfunc(chip, NAND_CMD_PARAM, 0, -1);
+       chip->legacy.cmdfunc(chip, NAND_CMD_PARAM, 0, -1);
        for (i = 0; i < 3; i++) {
                for (j = 0; j < sizeof(*p); j++)
-                       ((uint8_t *)p)[j] = chip->read_byte(chip);
+                       ((uint8_t *)p)[j] = chip->legacy.read_byte(chip);
                if (onfi_crc16(ONFI_CRC_BASE, (uint8_t *)p, 254) ==
                                le16_to_cpu(p->crc)) {
                        break;
@@ -3327,20 +3327,20 @@ static struct nand_flash_dev 
*nand_get_flash_type(struct nand_chip *chip,
        u8 id_data[8];
 
        /* Select the device */
-       chip->select_chip(chip, 0);
+       chip->legacy.select_chip(chip, 0);
 
        /*
         * Reset the chip, required by some chips (e.g. Micron MT29FxGxxxxx)
         * after power-up.
         */
-       chip->cmdfunc(chip, NAND_CMD_RESET, -1, -1);
+       chip->legacy.cmdfunc(chip, NAND_CMD_RESET, -1, -1);
 
        /* Send the command for reading device ID */
-       chip->cmdfunc(chip, NAND_CMD_READID, 0x00, -1);
+       chip->legacy.cmdfunc(chip, NAND_CMD_READID, 0x00, -1);
 
        /* Read manufacturer and device IDs */
-       *maf_id = chip->read_byte(chip);
-       *dev_id = chip->read_byte(chip);
+       *maf_id = chip->legacy.read_byte(chip);
+       *dev_id = chip->legacy.read_byte(chip);
 
        /*
         * Try again to make sure, as some systems the bus-hold or other
@@ -3349,11 +3349,11 @@ static struct nand_flash_dev 
*nand_get_flash_type(struct nand_chip *chip,
         * not match, ignore the device completely.
         */
 
-       chip->cmdfunc(chip, NAND_CMD_READID, 0x00, -1);
+       chip->legacy.cmdfunc(chip, NAND_CMD_READID, 0x00, -1);
 
        /* Read entire ID string */
        for (i = 0; i < 8; i++)
-               id_data[i] = chip->read_byte(chip);
+               id_data[i] = chip->legacy.read_byte(chip);
 
        if (id_data[0] != *maf_id || id_data[1] != *dev_id) {
                pr_info("%s: second ID read did not match "
@@ -3449,8 +3449,8 @@ ident_done:
        chip->badblockbits = 8;
 
        /* Do not replace user supplied command function! */
-       if (mtd->writesize > 512 && chip->cmdfunc == nand_command)
-               chip->cmdfunc = nand_command_lp;
+       if (mtd->writesize > 512 && chip->legacy.cmdfunc == nand_command)
+               chip->legacy.cmdfunc = nand_command_lp;
 
        pr_info("NAND device: Manufacturer ID: 0x%02x, Chip ID: 0x%02x (%s %s),"
                " %dMiB, page size: %d, OOB size: %d\n",
@@ -3517,26 +3517,26 @@ int nand_scan_ident(struct nand_chip *chip, int 
maxchips,
        if (IS_ERR(type)) {
                if (!(chip->options & NAND_SCAN_SILENT_NODEV))
                        pr_warn("No NAND device found\n");
-               chip->select_chip(chip, -1);
+               chip->legacy.select_chip(chip, -1);
                return PTR_ERR(type);
        }
 
-       chip->select_chip(chip, -1);
+       chip->legacy.select_chip(chip, -1);
 
        /* Check for a chip array */
        for (i = 1; i < maxchips; i++) {
-               chip->select_chip(chip, i);
+               chip->legacy.select_chip(chip, i);
                /* See comment in nand_get_flash_type for reset */
-               chip->cmdfunc(chip, NAND_CMD_RESET, -1, -1);
+               chip->legacy.cmdfunc(chip, NAND_CMD_RESET, -1, -1);
                /* Send the command for reading device ID */
-               chip->cmdfunc(chip, NAND_CMD_READID, 0x00, -1);
+               chip->legacy.cmdfunc(chip, NAND_CMD_READID, 0x00, -1);
                /* Read manufacturer and device IDs */
-               if (nand_maf_id != chip->read_byte(chip) ||
-                   nand_dev_id != chip->read_byte(chip)) {
-                       chip->select_chip(chip, -1);
+               if (nand_maf_id != chip->legacy.read_byte(chip) ||
+                   nand_dev_id != chip->legacy.read_byte(chip)) {
+                       chip->legacy.select_chip(chip, -1);
                        break;
                }
-               chip->select_chip(chip, -1);
+               chip->legacy.select_chip(chip, -1);
        }
        if (i > 1)
                pr_info("%d NAND chips detected\n", i);
diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c
index 16e77d924e..7d04c89d76 100644
--- a/drivers/mtd/nand/nand_bbt.c
+++ b/drivers/mtd/nand/nand_bbt.c
@@ -696,7 +696,7 @@ static void mark_bbt_block_bad(struct nand_chip *this,
        bbt_mark_entry(this, block, BBT_BLOCK_WORN);
 
        to = (loff_t)block << this->bbt_erase_shift;
-       res = this->block_markbad(this, to);
+       res = this->legacy.block_markbad(this, to);
        if (res)
                pr_warn("nand_bbt: error %d while marking block %d bad\n",
                        res, block);
diff --git a/drivers/mtd/nand/nand_denali.c b/drivers/mtd/nand/nand_denali.c
index 629281061b..1bacbd3be2 100644
--- a/drivers/mtd/nand/nand_denali.c
+++ b/drivers/mtd/nand/nand_denali.c
@@ -1404,11 +1404,11 @@ int denali_init(struct denali_nand_info *denali)
        mtd->name = "denali-nand";
 
        /* register the driver with the NAND core subsystem */
-       nand->read_buf = denali_read_buf;
-       nand->select_chip = denali_select_chip;
-       nand->cmdfunc = denali_cmdfunc;
-       nand->read_byte = denali_read_byte;
-       nand->waitfunc = denali_waitfunc;
+       nand->legacy.read_buf = denali_read_buf;
+       nand->legacy.select_chip = denali_select_chip;
+       nand->legacy.cmdfunc = denali_cmdfunc;
+       nand->legacy.read_byte = denali_read_byte;
+       nand->legacy.waitfunc = denali_waitfunc;
 
        /*
         * scan for NAND devices attached to the controller
diff --git a/drivers/mtd/nand/nand_imx.c b/drivers/mtd/nand/nand_imx.c
index d566c941e7..993fb2e249 100644
--- a/drivers/mtd/nand/nand_imx.c
+++ b/drivers/mtd/nand/nand_imx.c
@@ -894,15 +894,15 @@ static int imx_nand_write_page(struct nand_chip *chip,
 
        host->enable_hwecc(chip, !raw);
 
-       chip->cmdfunc(chip, NAND_CMD_SEQIN, 0x00, page);
+       chip->legacy.cmdfunc(chip, NAND_CMD_SEQIN, 0x00, page);
 
        memcpy32(host->main_area0, buf, mtd->writesize);
        if (oob_required)
                copy_spare(chip, 0, chip->oob_poi);
 
        host->send_page(host, NFC_INPUT);
-       chip->cmdfunc(chip, NAND_CMD_PAGEPROG, -1, -1);
-       status = chip->waitfunc(chip);
+       chip->legacy.cmdfunc(chip, NAND_CMD_PAGEPROG, -1, -1);
+       status = chip->legacy.waitfunc(chip);
 
        if (status & NAND_STATUS_FAIL)
                return -EIO;
@@ -1341,16 +1341,16 @@ static int __init imxnd_probe(struct device_d *dev)
        mtd->name = "imx_nand";
 
        /* 50 us command delay time */
-       this->chip_delay = 5;
+       this->legacy.chip_delay = 5;
 
        this->priv = host;
-       this->dev_ready = imx_nand_dev_ready;
-       this->cmdfunc = imx_nand_command;
-       this->select_chip = imx_nand_select_chip;
-       this->read_byte = imx_nand_read_byte;
-       this->read_word = imx_nand_read_word;
-       this->write_buf = imx_nand_write_buf;
-       this->read_buf = imx_nand_read_buf;
+       this->legacy.dev_ready = imx_nand_dev_ready;
+       this->legacy.cmdfunc = imx_nand_command;
+       this->legacy.select_chip = imx_nand_select_chip;
+       this->legacy.read_byte = imx_nand_read_byte;
+       this->legacy.read_word = imx_nand_read_word;
+       this->legacy.write_buf = imx_nand_write_buf;
+       this->legacy.read_buf = imx_nand_read_buf;
        this->write_page = imx_nand_write_page;
 
        if (host->hw_ecc) {
diff --git a/drivers/mtd/nand/nand_mrvl_nfc.c b/drivers/mtd/nand/nand_mrvl_nfc.c
index 3f5e04b716..76b487c3f8 100644
--- a/drivers/mtd/nand/nand_mrvl_nfc.c
+++ b/drivers/mtd/nand/nand_mrvl_nfc.c
@@ -352,8 +352,8 @@ static void mrvl_nand_set_timing(struct mrvl_nand_host 
*host, bool use_default)
        if (use_default) {
                id = 0;
        } else {
-               chip->cmdfunc(chip, NAND_CMD_READID, 0x00, -1);
-               chip->read_buf(chip, (unsigned char *)&id, sizeof(id));
+               chip->legacy.cmdfunc(chip, NAND_CMD_READID, 0x00, -1);
+               chip->legacy.read_buf(chip, (unsigned char *)&id, sizeof(id));
        }
        for (t = &timings[0]; t->id; t++)
                if (t->id == id)
@@ -472,7 +472,7 @@ static void mrvl_nand_start(struct mrvl_nand_host *host)
        nand_writel(host, NDSR, NDSR_MASK);
        nand_writel(host, NDCR, ndcr | NDCR_ND_RUN);
 
-       if (wait_on_timeout(host->chip.chip_delay * USECOND,
+       if (wait_on_timeout(host->chip.legacy.chip_delay * USECOND,
                            nand_readl(host, NDSR) & NDSR_WRCMDREQ)) {
                dev_err(host->dev, "Waiting for command request failed\n");
        } else {
@@ -719,7 +719,7 @@ static void mrvl_data_stage(struct mrvl_nand_host *host)
        if (!host->data_size)
                return;
 
-       wait_on_timeout(host->chip.chip_delay * USECOND,
+       wait_on_timeout(host->chip.legacy.chip_delay * USECOND,
                        nand_readl(host, NDSR) & mask);
        if (!(nand_readl(host, NDSR) & mask)) {
                dev_err(host->dev, "Timeout waiting for data ndsr=0x%08x\n",
@@ -752,7 +752,7 @@ static void mrvl_nand_wait_cmd_done(struct mrvl_nand_host 
*host,
                mask = NDSR_CS0_CMDD;
        else
                mask = NDSR_CS1_CMDD;
-       wait_on_timeout(host->chip.chip_delay * USECOND,
+       wait_on_timeout(host->chip.legacy.chip_delay * USECOND,
                        (nand_readl(host, NDSR) & mask) == mask);
        if ((nand_readl(host, NDSR) & mask) != mask) {
                dev_err(host->dev, "Waiting end of command %dth %d timeout, 
ndsr=0x%08x ndcr=0x%08x\n",
@@ -817,8 +817,8 @@ static int mrvl_nand_read_page_hwecc(struct nand_chip 
*chip, uint8_t *buf,
        u32 ndsr;
        int ret = 0;
 
-       chip->read_buf(chip, buf, mtd->writesize);
-       chip->read_buf(chip, chip->oob_poi, mtd->oobsize);
+       chip->legacy.read_buf(chip, buf, mtd->writesize);
+       chip->legacy.read_buf(chip, chip->oob_poi, mtd->oobsize);
        ndsr = nand_readl(host, NDSR);
 
        if (ndsr & NDSR_UNCORERR) {
@@ -1122,19 +1122,19 @@ static struct mrvl_nand_host 
*alloc_nand_resource(struct device_d *dev)
        mtd->name = "mrvl_nand";
 
        chip = &host->chip;
-       chip->read_byte         = mrvl_nand_read_byte;
-       chip->read_word         = mrvl_nand_read_word;
+       chip->legacy.read_byte = mrvl_nand_read_byte;
+       chip->legacy.read_word = mrvl_nand_read_word;
        chip->ecc.read_page     = mrvl_nand_read_page_hwecc;
        chip->ecc.write_page    = mrvl_nand_write_page_hwecc;
-       chip->dev_ready         = mrvl_nand_ready;
-       chip->select_chip       = mrvl_nand_select_chip;
-       chip->block_bad         = mrvl_nand_block_bad;
-       chip->read_buf          = mrvl_nand_read_buf;
-       chip->write_buf         = mrvl_nand_write_buf;
+       chip->legacy.dev_ready = mrvl_nand_ready;
+       chip->legacy.select_chip = mrvl_nand_select_chip;
+       chip->legacy.block_bad = mrvl_nand_block_bad;
+       chip->legacy.read_buf = mrvl_nand_read_buf;
+       chip->legacy.write_buf = mrvl_nand_write_buf;
        chip->options           |= NAND_NO_SUBPAGE_WRITE;
-       chip->cmdfunc           = mrvl_nand_cmdfunc;
+       chip->legacy.cmdfunc = mrvl_nand_cmdfunc;
        chip->priv              = host;
-       chip->chip_delay        = CHIP_DELAY_TIMEOUT_US;
+       chip->legacy.chip_delay = CHIP_DELAY_TIMEOUT_US;
 
        host->dev = dev;
        iores = dev_request_mem_resource(dev, 0);
diff --git a/drivers/mtd/nand/nand_mxs.c b/drivers/mtd/nand/nand_mxs.c
index 8075f6a854..2cf72178bf 100644
--- a/drivers/mtd/nand/nand_mxs.c
+++ b/drivers/mtd/nand/nand_mxs.c
@@ -1148,8 +1148,8 @@ static int mxs_nand_ecc_read_oob(struct nand_chip *chip, 
int page)
                 * If control arrives here, we're doing a "raw" read. Send the
                 * command to read the conventional OOB and read it.
                 */
-               chip->cmdfunc(chip, NAND_CMD_READ0, mtd->writesize, page);
-               chip->read_buf(chip, chip->oob_poi, mtd->oobsize);
+               chip->legacy.cmdfunc(chip, NAND_CMD_READ0, mtd->writesize, 
page);
+               chip->legacy.read_buf(chip, chip->oob_poi, mtd->oobsize);
        } else {
                /*
                 * If control arrives here, we're not doing a "raw" read. Fill
@@ -1158,7 +1158,7 @@ static int mxs_nand_ecc_read_oob(struct nand_chip *chip, 
int page)
                memset(chip->oob_poi, 0xff, mtd->oobsize);
 
                column = nand_info->version == GPMI_VERSION_TYPE_MX23 ? 0 : 
mtd->writesize;
-               chip->cmdfunc(chip, NAND_CMD_READ0, column, page);
+               chip->legacy.cmdfunc(chip, NAND_CMD_READ0, column, page);
                mxs_nand_read_buf(chip, chip->oob_poi, 1);
        }
 
@@ -1192,12 +1192,12 @@ static int mxs_nand_ecc_write_oob(struct nand_chip 
*chip, int page)
 
        column = nand_info->version == GPMI_VERSION_TYPE_MX23 ? 0 : 
mtd->writesize;
        /* Write the block mark. */
-       chip->cmdfunc(chip, NAND_CMD_SEQIN, column, page);
-       chip->write_buf(chip, &block_mark, 1);
-       chip->cmdfunc(chip, NAND_CMD_PAGEPROG, -1, -1);
+       chip->legacy.cmdfunc(chip, NAND_CMD_SEQIN, column, page);
+       chip->legacy.write_buf(chip, &block_mark, 1);
+       chip->legacy.cmdfunc(chip, NAND_CMD_PAGEPROG, -1, -1);
 
        /* Check if it worked. */
-       if (chip->waitfunc(chip) & NAND_STATUS_FAIL)
+       if (chip->legacy.waitfunc(chip) & NAND_STATUS_FAIL)
                return -EIO;
 
        return 0;
@@ -2044,7 +2044,7 @@ static int mxs_nand_enable_edo_mode(struct mxs_nand_info 
*info)
        else
                return -EINVAL;
 
-       chip->select_chip(chip, 0);
+       chip->legacy.select_chip(chip, 0);
 
        if (le16_to_cpu(chip->onfi_params.opt_cmd)
              & ONFI_OPT_CMD_SET_GET_FEATURES) {
@@ -2052,19 +2052,19 @@ static int mxs_nand_enable_edo_mode(struct 
mxs_nand_info *info)
                /* [1] send SET FEATURE commond to NAND */
                feature[0] = mode;
 
-               ret = chip->onfi_set_features(chip,
+               ret = chip->legacy.set_features(chip,
                                ONFI_FEATURE_ADDR_TIMING_MODE, feature);
                if (ret)
                        goto err_out;
 
                /* [2] send GET FEATURE command to double-check the timing mode 
*/
-               ret = chip->onfi_get_features(chip,
+               ret = chip->legacy.get_features(chip,
                                ONFI_FEATURE_ADDR_TIMING_MODE, feature);
                if (ret || feature[0] != mode)
                        goto err_out;
        }
 
-       chip->select_chip(chip, -1);
+       chip->legacy.select_chip(chip, -1);
 
        /* [3] set the main IO clock, 100MHz for mode 5, 80MHz for mode 4. */
        clk_disable(info->clk);
@@ -2076,7 +2076,7 @@ static int mxs_nand_enable_edo_mode(struct mxs_nand_info 
*info)
        return mode;
 
 err_out:
-       chip->select_chip(chip, -1);
+       chip->legacy.select_chip(chip, -1);
 
        return -EINVAL;
 }
@@ -2195,17 +2195,17 @@ static int mxs_nand_probe(struct device_d *dev)
 
        chip->priv = nand_info;
 
-       chip->cmd_ctrl          = mxs_nand_cmd_ctrl;
+       chip->legacy.cmd_ctrl           = mxs_nand_cmd_ctrl;
 
-       chip->dev_ready         = mxs_nand_device_ready;
-       chip->select_chip       = mxs_nand_select_chip;
-       chip->block_bad         = mxs_nand_block_bad;
-       chip->scan_bbt          = mxs_nand_scan_bbt;
+       chip->legacy.dev_ready          = mxs_nand_device_ready;
+       chip->legacy.select_chip        = mxs_nand_select_chip;
+       chip->legacy.block_bad          = mxs_nand_block_bad;
+       chip->scan_bbt                  = mxs_nand_scan_bbt;
 
-       chip->read_byte         = mxs_nand_read_byte;
+       chip->legacy.read_byte          = mxs_nand_read_byte;
 
-       chip->read_buf          = mxs_nand_read_buf;
-       chip->write_buf         = mxs_nand_write_buf;
+       chip->legacy.read_buf           = mxs_nand_read_buf;
+       chip->legacy.write_buf          = mxs_nand_write_buf;
 
        chip->ecc.read_page     = mxs_nand_ecc_read_page;
        chip->ecc.write_page    = mxs_nand_ecc_write_page;
diff --git a/drivers/mtd/nand/nand_omap_gpmc.c 
b/drivers/mtd/nand/nand_omap_gpmc.c
index 6ad06288eb..3799406769 100644
--- a/drivers/mtd/nand/nand_omap_gpmc.c
+++ b/drivers/mtd/nand/nand_omap_gpmc.c
@@ -192,23 +192,23 @@ static void omap_hwcontrol(struct nand_chip *nand, int 
cmd, unsigned int ctrl)
 
        switch (ctrl) {
        case NAND_CTRL_CHANGE | NAND_CTRL_CLE:
-               nand->IO_ADDR_W = oinfo->gpmc_command;
-               nand->IO_ADDR_R = oinfo->gpmc_data;
+               nand->legacy.IO_ADDR_W = oinfo->gpmc_command;
+               nand->legacy.IO_ADDR_R = oinfo->gpmc_data;
                break;
 
        case NAND_CTRL_CHANGE | NAND_CTRL_ALE:
-               nand->IO_ADDR_W = oinfo->gpmc_address;
-               nand->IO_ADDR_R = oinfo->gpmc_data;
+               nand->legacy.IO_ADDR_W = oinfo->gpmc_address;
+               nand->legacy.IO_ADDR_R = oinfo->gpmc_data;
                break;
 
        case NAND_CTRL_CHANGE | NAND_NCE:
-               nand->IO_ADDR_W = oinfo->gpmc_data;
-               nand->IO_ADDR_R = oinfo->gpmc_data;
+               nand->legacy.IO_ADDR_W = oinfo->gpmc_data;
+               nand->legacy.IO_ADDR_R = oinfo->gpmc_data;
                break;
        }
 
        if (cmd != NAND_CMD_NONE)
-               writeb(cmd, nand->IO_ADDR_W);
+               writeb(cmd, nand->legacy.IO_ADDR_W);
        return;
 }
 
@@ -561,7 +561,7 @@ static int omap_gpmc_read_buf_manual(struct nand_chip *chip,
        writel(GPMC_ECC_CONTROL_ECCPOINTER(result_reg),
                        oinfo->gpmc_base + GPMC_ECC_CONTROL);
 
-       chip->read_buf(chip, buf, bytes);
+       chip->legacy.read_buf(chip, buf, bytes);
 
        return bytes;
 }
@@ -623,7 +623,7 @@ static void omap_write_buf_pref(struct nand_chip *nand_chip,
 
        /* take care of subpage writes */
        while (len % 4 != 0) {
-               writeb(*buf, info->nand.IO_ADDR_W);
+               writeb(*buf, info->nand.legacy.IO_ADDR_W);
                buf1++;
                p32 = (u32 *)buf1;
                len--;
@@ -958,8 +958,8 @@ static int gpmc_read_page_hwecc_elm(struct nand_chip *chip, 
uint8_t *buf,
        uint32_t *eccpos = chip->ecc.layout->eccpos;
 
        chip->ecc.hwctl(chip, NAND_ECC_READ);
-       chip->read_buf(chip, buf, mtd->writesize);
-       chip->read_buf(chip, chip->oob_poi, mtd->oobsize);
+       chip->legacy.read_buf(chip, buf, mtd->writesize);
+       chip->legacy.read_buf(chip, chip->oob_poi, mtd->oobsize);
 
        for (i = 0; i < chip->ecc.total; i++)
                ecc_code[i] = chip->oob_poi[eccpos[i]];
@@ -986,8 +986,8 @@ static int gpmc_read_page_hwecc(struct nand_chip *chip, 
uint8_t *buf,
        unsigned int max_bitflips = 0;
 
        chip->ecc.hwctl(chip, NAND_ECC_READ);
-       chip->read_buf(chip, p, mtd->writesize);
-       chip->read_buf(chip, chip->oob_poi, mtd->oobsize);
+       chip->legacy.read_buf(chip, p, mtd->writesize);
+       chip->legacy.read_buf(chip, chip->oob_poi, mtd->oobsize);
 
        for (i = 0; i < chip->ecc.total; i++)
                ecc_code[i] = chip->oob_poi[eccpos[i]];
@@ -1230,7 +1230,7 @@ static int gpmc_nand_probe(struct device_d *pdev)
        }
 
        /* Same data register for in and out */
-       nand->IO_ADDR_W = nand->IO_ADDR_R = (void *)oinfo->gpmc_data;
+       nand->legacy.IO_ADDR_W = nand->legacy.IO_ADDR_R = (void 
*)oinfo->gpmc_data;
        /*
         * If RDY/BSY line is connected to OMAP then use the omap ready
         * function and the generic nand_wait function which reads the
@@ -1249,16 +1249,16 @@ static int gpmc_nand_probe(struct device_d *pdev)
                /* Set up the wait monitoring mask
                 * This is GPMC_STATUS reg relevant */
                oinfo->wait_mon_mask = (0x1 << (pdata->wait_mon_pin - 1)) << 8;
-               nand->dev_ready = omap_dev_ready;
-               nand->chip_delay = 0;
+               nand->legacy.dev_ready = omap_dev_ready;
+               nand->legacy.chip_delay = 0;
        } else {
                /* use the default nand_wait function */
-               nand->chip_delay = 50;
+               nand->legacy.chip_delay = 50;
        }
 
        /* Use default cmdfunc */
        /* nand cmd control */
-       nand->cmd_ctrl = omap_hwcontrol;
+       nand->legacy.cmd_ctrl = omap_hwcontrol;
 
        /* Dont do a bbt scan at the start */
        nand->options |= NAND_SKIP_BBTSCAN;
@@ -1295,9 +1295,9 @@ static int gpmc_nand_probe(struct device_d *pdev)
 
        gpmc_set_buswidth(nand, nand->options & NAND_BUSWIDTH_16);
 
-       nand->read_buf   = omap_read_buf_pref;
+       nand->legacy.read_buf   = omap_read_buf_pref;
        if (IS_ENABLED(CONFIG_MTD_WRITE))
-               nand->write_buf  = omap_write_buf_pref;
+               nand->legacy.write_buf  = omap_write_buf_pref;
 
        nand->options |= NAND_SKIP_BBTSCAN;
 
diff --git a/drivers/mtd/nand/nand_orion.c b/drivers/mtd/nand/nand_orion.c
index 796c53e4c4..c6f8dc68b4 100644
--- a/drivers/mtd/nand/nand_orion.c
+++ b/drivers/mtd/nand/nand_orion.c
@@ -45,12 +45,12 @@ static void orion_nand_cmd_ctrl(struct nand_chip *chip, int 
cmd, unsigned int ct
        if (chip->options & NAND_BUSWIDTH_16)
                offs <<= 1;
 
-       writeb(cmd, chip->IO_ADDR_W + offs);
+       writeb(cmd, chip->legacy.IO_ADDR_W + offs);
 }
 
 static void orion_nand_read_buf(struct nand_chip *chip, uint8_t *buf, int len)
 {
-       void __iomem *io_base = chip->IO_ADDR_R;
+       void __iomem *io_base = chip->legacy.IO_ADDR_R;
        uint64_t *buf64;
        int i = 0;
 
@@ -112,13 +112,13 @@ static int orion_nand_probe(struct device_d *dev)
                width = 8;
 
        if (!of_property_read_u32(dev_node, "chip-delay", &val))
-               chip->chip_delay = (u8)val;
+               chip->legacy.chip_delay = (u8)val;
 
        mtd->dev.parent = dev;
        chip->priv = priv;
-       chip->IO_ADDR_R = chip->IO_ADDR_W = io_base;
-       chip->cmd_ctrl = orion_nand_cmd_ctrl;
-       chip->read_buf = orion_nand_read_buf;
+       chip->legacy.IO_ADDR_R = chip->legacy.IO_ADDR_W = io_base;
+       chip->legacy.cmd_ctrl = orion_nand_cmd_ctrl;
+       chip->legacy.read_buf = orion_nand_read_buf;
        chip->ecc.mode = NAND_ECC_SOFT;
 
        WARN(width > 16, "%d bit bus width out of range", width);
diff --git a/drivers/mtd/nand/nand_s3c24xx.c b/drivers/mtd/nand/nand_s3c24xx.c
index ac95973194..e20517ab4a 100644
--- a/drivers/mtd/nand/nand_s3c24xx.c
+++ b/drivers/mtd/nand/nand_s3c24xx.c
@@ -426,18 +426,18 @@ static int s3c24x0_nand_probe(struct device_d *dev)
        /* init the default settings */
 
        /* 50 us command delay time */
-       chip->chip_delay = 50;
+       chip->legacy.chip_delay = 50;
        chip->priv = host;
 
-       chip->IO_ADDR_R = chip->IO_ADDR_W = host->base + NFDATA;
+       chip->legacy.IO_ADDR_R = chip->legacy.IO_ADDR_W = host->base + NFDATA;
 
 #ifdef CONFIG_CPU_S3C2440
-       chip->read_buf = s3c2440_nand_read_buf;
-       chip->write_buf = s3c2440_nand_write_buf;
+       chip->legacy.read_buf = s3c2440_nand_read_buf;
+       chip->legacy.write_buf = s3c2440_nand_write_buf;
 #endif
-       chip->cmd_ctrl = s3c24x0_nand_hwcontrol;
-       chip->dev_ready = s3c24x0_nand_devready;
-       chip->select_chip = s3c24x0_nand_select_chip;
+       chip->legacy.cmd_ctrl = s3c24x0_nand_hwcontrol;
+       chip->legacy.dev_ready = s3c24x0_nand_devready;
+       chip->legacy.select_chip = s3c24x0_nand_select_chip;
 
        /* we are using the hardware ECC feature of this device */
        chip->ecc.calculate = s3c2410_nand_calculate_ecc;
diff --git a/drivers/mtd/nand/nomadik_nand.c b/drivers/mtd/nand/nomadik_nand.c
index 55aa756826..2767259f7a 100644
--- a/drivers/mtd/nand/nomadik_nand.c
+++ b/drivers/mtd/nand/nomadik_nand.c
@@ -200,10 +200,11 @@ static int nomadik_nand_probe(struct device_d *dev)
        nand->priv = host;
        mtd->dev.parent = dev;
 
-       nand->IO_ADDR_W = nand->IO_ADDR_R = dev_request_mem_region_by_name(dev, 
"nand_data");
-       if (IS_ERR(nand->IO_ADDR_W))
-               return PTR_ERR(nand->IO_ADDR_W);
-       nand->cmd_ctrl = nomadik_cmd_ctrl;
+       nand->legacy.IO_ADDR_W = nand->legacy.IO_ADDR_R =
+               dev_request_mem_region_by_name(dev, "nand_data");
+       if (IS_ERR(nand->legacy.IO_ADDR_W))
+               return PTR_ERR(nand->legacy.IO_ADDR_W);
+       nand->legacy.cmd_ctrl = nomadik_cmd_ctrl;
 
        nand->ecc.mode = NAND_ECC_HW;
        nand->ecc.layout = &nomadik_ecc_layout;
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index e23b3446a7..f0d3455fd3 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -386,39 +386,67 @@ struct nand_buffers {
        uint8_t databuf[NAND_MAX_PAGESIZE + NAND_MAX_OOBSIZE];
 };
 
+/**
+ * struct nand_legacy - NAND chip legacy fields/hooks
+ * @IO_ADDR_R: address to read the 8 I/O lines of the flash device
+ * @IO_ADDR_W: address to write the 8 I/O lines of the flash device
+ * @select_chip: select/deselect a specific target/die
+ * @read_byte: read one byte from the chip
+ * @write_byte: write a single byte to the chip on the low 8 I/O lines
+ * @write_buf: write data from the buffer to the chip
+ * @read_buf: read data from the chip into the buffer
+ * @cmd_ctrl: hardware specific function for controlling ALE/CLE/nCE. Also used
+ *           to write command and address
+ * @cmdfunc: hardware specific function for writing commands to the chip.
+ * @dev_ready: hardware specific function for accessing device ready/busy line.
+ *            If set to NULL no access to ready/busy is available and the
+ *            ready/busy information is read from the chip status register.
+ * @waitfunc: hardware specific function for wait on ready.
+ * @block_bad: check if a block is bad, using OOB markers
+ * @block_markbad: mark a block bad
+ * @set_features: set the NAND chip features
+ * @get_features: get the NAND chip features
+ * @chip_delay: chip dependent delay for transferring data from array to read
+ *             regs (tR).
+ * @dummy_controller: dummy controller implementation for drivers that can
+ *                   only control a single chip
+ *
+ * If you look at this structure you're already wrong. These fields/hooks are
+ * all deprecated.
+ */
+struct nand_legacy {
+       void __iomem *IO_ADDR_R;
+       void __iomem *IO_ADDR_W;
+       void (*select_chip)(struct nand_chip *chip, int cs);
+       u8 (*read_byte)(struct nand_chip *chip);
+       u16 (*read_word)(struct nand_chip *chip);
+       void (*write_byte)(struct nand_chip *chip, u8 byte);
+       void (*write_buf)(struct nand_chip *chip, const u8 *buf, int len);
+       void (*read_buf)(struct nand_chip *chip, u8 *buf, int len);
+       void (*cmd_ctrl)(struct nand_chip *chip, int dat, unsigned int ctrl);
+       void (*cmdfunc)(struct nand_chip *chip, unsigned command, int column,
+                       int page_addr);
+       int (*dev_ready)(struct nand_chip *chip);
+       int (*waitfunc)(struct nand_chip *chip);
+       int (*block_bad)(struct nand_chip *chip, loff_t ofs, int getchip);
+       int (*block_markbad)(struct nand_chip *chip, loff_t ofs);
+       int (*set_features)(struct nand_chip *chip, int feature_addr,
+                           u8 *subfeature_para);
+       int (*get_features)(struct nand_chip *chip, int feature_addr,
+                           u8 *subfeature_para);
+       int chip_delay;
+};
+
 /**
  * struct nand_chip - NAND Private Flash Chip Data
- * @IO_ADDR_R:         [BOARDSPECIFIC] address to read the 8 I/O lines of the
- *                     flash device
- * @IO_ADDR_W:         [BOARDSPECIFIC] address to write the 8 I/O lines of the
- *                     flash device.
- * @read_byte:         [REPLACEABLE] read one byte from the chip
- * @read_word:         [REPLACEABLE] read one word from the chip
- * @write_buf:         [REPLACEABLE] write data from the buffer to the chip
- * @read_buf:          [REPLACEABLE] read data from the chip into the buffer
- * @select_chip:       [REPLACEABLE] select chip nr
- * @block_bad:         [REPLACEABLE] check, if the block is bad
- * @block_markbad:     [REPLACEABLE] mark the block bad
- * @cmd_ctrl:          [BOARDSPECIFIC] hardwarespecific function for 
controlling
- *                     ALE/CLE/nCE. Also used to write command and address
  * @init_size:         [BOARDSPECIFIC] hardwarespecific function for setting
  *                     mtd->oobsize, mtd->writesize and so on.
  *                     @id_data contains the 8 bytes values of NAND_CMD_READID.
  *                     Return with the bus width.
- * @dev_ready:         [BOARDSPECIFIC] hardwarespecific function for accessing
- *                     device ready/busy line. If set to NULL no access to
- *                     ready/busy is available and the ready/busy information
- *                     is read from the chip status register.
- * @cmdfunc:           [REPLACEABLE] hardwarespecific function for writing
- *                     commands to the chip.
- * @waitfunc:          [REPLACEABLE] hardwarespecific function for wait on
- *                     ready.
  * @ecc:               [BOARDSPECIFIC] ECC control structure
  * @buffers:           buffer structure for read/write
  * @hwcontrol:         platform-specific hardware control structure
  * @scan_bbt:          [REPLACEABLE] function to scan bad block table
- * @chip_delay:                [BOARDSPECIFIC] chip dependent delay for 
transferring
- *                     data from array to read regs (tR).
  * @state:             [INTERN] the current state of the NAND device
  * @oob_poi:           "poison value buffer," used for laying out OOB data
  *                     before writing
@@ -468,31 +496,13 @@ struct nand_buffers {
  */
 
 struct nand_chip {
-       void __iomem *IO_ADDR_R;
-       void __iomem *IO_ADDR_W;
-
-       uint8_t (*read_byte)(struct nand_chip *chip);
-       u16 (*read_word)(struct nand_chip *chip);
-       void (*write_buf)(struct nand_chip *chip, const uint8_t *buf, int len);
-       void (*read_buf)(struct nand_chip *chip, uint8_t *buf, int len);
-       void (*select_chip)(struct nand_chip *_chip, int chip);
-       int (*block_bad)(struct nand_chip *chip, loff_t ofs, int getchip);
-       int (*block_markbad)(struct nand_chip *chip, loff_t ofs);
-       void (*cmd_ctrl)(struct nand_chip *chip, int dat, unsigned int ctrl);
-       int (*dev_ready)(struct nand_chip *chip);
-       void (*cmdfunc)(struct nand_chip *chip, unsigned command, int column,
-                       int page_addr);
-       int(*waitfunc)(struct nand_chip *chip);
        int (*scan_bbt)(struct nand_chip *chip);
        int (*write_page)(struct nand_chip *chip,
                        uint32_t offset, int data_len, const uint8_t *buf,
                        int oob_required, int page, int cached, int raw);
-       int (*onfi_set_features)(struct nand_chip *chip,
-                       int feature_addr, uint8_t *subfeature_para);
-       int (*onfi_get_features)(struct nand_chip *chip,
-                       int feature_addr, uint8_t *subfeature_para);
 
-       int chip_delay;
+       struct nand_legacy legacy;
+
        unsigned int options;
        unsigned int bbt_options;
 
-- 
2.20.1


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