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Diffstat (limited to 'drivers/mtd/onenand/onenand_base.c')
-rw-r--r--drivers/mtd/onenand/onenand_base.c1143
1 files changed, 841 insertions, 302 deletions
diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index 6e829095ea9..635ee002769 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -1,17 +1,19 @@
/*
* linux/drivers/mtd/onenand/onenand_base.c
*
- * Copyright (C) 2005-2007 Samsung Electronics
+ * Copyright © 2005-2009 Samsung Electronics
+ * Copyright © 2007 Nokia Corporation
+ *
* Kyungmin Park <kyungmin.park@samsung.com>
*
* Credits:
* Adrian Hunter <ext-adrian.hunter@nokia.com>:
* auto-placement support, read-while load support, various fixes
- * Copyright (C) Nokia Corporation, 2007
*
* Vishak G <vishak.g at samsung.com>, Rohit Hagargundgi <h.rohit at samsung.com>
* Flex-OneNAND support
- * Copyright (C) Samsung Electronics, 2008
+ * Amul Kumar Saha <amul.saha at samsung.com>
+ * OTP support
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -21,7 +23,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
-#include <linux/init.h>
+#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
@@ -32,6 +34,13 @@
#include <asm/io.h>
+/*
+ * Multiblock erase if number of blocks to erase is 2 or more.
+ * Maximum number of blocks for simultaneous erase is 64.
+ */
+#define MB_ERASE_MIN_BLK_COUNT 2
+#define MB_ERASE_MAX_BLK_COUNT 64
+
/* Default Flex-OneNAND boundary and lock respectively */
static int flex_bdry[MAX_DIES * 2] = { -1, 0, -1, 0 };
@@ -43,11 +52,23 @@ MODULE_PARM_DESC(flex_bdry, "SLC Boundary information for Flex-OneNAND"
" : 0->Set boundary in unlocked status"
" : 1->Set boundary in locked status");
-/**
- * onenand_oob_128 - oob info for Flex-Onenand with 4KB page
- * For now, we expose only 64 out of 80 ecc bytes
+/* Default OneNAND/Flex-OneNAND OTP options*/
+static int otp;
+
+module_param(otp, int, 0400);
+MODULE_PARM_DESC(otp, "Corresponding behaviour of OneNAND in OTP"
+ "Syntax : otp=LOCK_TYPE"
+ "LOCK_TYPE : Keys issued, for specific OTP Lock type"
+ " : 0 -> Default (No Blocks Locked)"
+ " : 1 -> OTP Block lock"
+ " : 2 -> 1st Block lock"
+ " : 3 -> BOTH OTP Block and 1st Block lock");
+
+/*
+ * flexonenand_oob_128 - oob info for Flex-Onenand with 4KB page
+ * For now, we expose only 64 out of 80 ecc bytes
*/
-static struct nand_ecclayout onenand_oob_128 = {
+static struct nand_ecclayout flexonenand_oob_128 = {
.eccbytes = 64,
.eccpos = {
6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
@@ -64,6 +85,35 @@ static struct nand_ecclayout onenand_oob_128 = {
}
};
+/*
+ * onenand_oob_128 - oob info for OneNAND with 4KB page
+ *
+ * Based on specification:
+ * 4Gb M-die OneNAND Flash (KFM4G16Q4M, KFN8G16Q4M). Rev. 1.3, Apr. 2010
+ *
+ * For eccpos we expose only 64 bytes out of 72 (see struct nand_ecclayout)
+ *
+ * oobfree uses the spare area fields marked as
+ * "Managed by internal ECC logic for Logical Sector Number area"
+ */
+static struct nand_ecclayout onenand_oob_128 = {
+ .eccbytes = 64,
+ .eccpos = {
+ 7, 8, 9, 10, 11, 12, 13, 14, 15,
+ 23, 24, 25, 26, 27, 28, 29, 30, 31,
+ 39, 40, 41, 42, 43, 44, 45, 46, 47,
+ 55, 56, 57, 58, 59, 60, 61, 62, 63,
+ 71, 72, 73, 74, 75, 76, 77, 78, 79,
+ 87, 88, 89, 90, 91, 92, 93, 94, 95,
+ 103, 104, 105, 106, 107, 108, 109, 110, 111,
+ 119
+ },
+ .oobfree = {
+ {2, 3}, {18, 3}, {34, 3}, {50, 3},
+ {66, 3}, {82, 3}, {98, 3}, {114, 3}
+ }
+};
+
/**
* onenand_oob_64 - oob info for large (2KB) page
*/
@@ -339,6 +389,8 @@ static int onenand_command(struct mtd_info *mtd, int cmd, loff_t addr, size_t le
break;
case ONENAND_CMD_ERASE:
+ case ONENAND_CMD_MULTIBLOCK_ERASE:
+ case ONENAND_CMD_ERASE_VERIFY:
case ONENAND_CMD_BUFFERRAM:
case ONENAND_CMD_OTP_ACCESS:
block = onenand_block(this, addr);
@@ -353,8 +405,11 @@ static int onenand_command(struct mtd_info *mtd, int cmd, loff_t addr, size_t le
default:
block = onenand_block(this, addr);
- page = (int) (addr - onenand_addr(this, block)) >> this->page_shift;
-
+ if (FLEXONENAND(this))
+ page = (int) (addr - onenand_addr(this, block))>>\
+ this->page_shift;
+ else
+ page = (int) (addr >> this->page_shift);
if (ONENAND_IS_2PLANE(this)) {
/* Make the even block number */
block &= ~1;
@@ -373,7 +428,7 @@ static int onenand_command(struct mtd_info *mtd, int cmd, loff_t addr, size_t le
value = onenand_bufferram_address(this, block);
this->write_word(value, this->base + ONENAND_REG_START_ADDRESS2);
- if (ONENAND_IS_MLC(this) || ONENAND_IS_2PLANE(this))
+ if (ONENAND_IS_2PLANE(this) || ONENAND_IS_4KB_PAGE(this))
/* It is always BufferRAM0 */
ONENAND_SET_BUFFERRAM0(this);
else
@@ -402,7 +457,7 @@ static int onenand_command(struct mtd_info *mtd, int cmd, loff_t addr, size_t le
case FLEXONENAND_CMD_RECOVER_LSB:
case ONENAND_CMD_READ:
case ONENAND_CMD_READOOB:
- if (ONENAND_IS_MLC(this))
+ if (ONENAND_IS_4KB_PAGE(this))
/* It is always BufferRAM0 */
dataram = ONENAND_SET_BUFFERRAM0(this);
else
@@ -442,11 +497,11 @@ static inline int onenand_read_ecc(struct onenand_chip *this)
{
int ecc, i, result = 0;
- if (!FLEXONENAND(this))
+ if (!FLEXONENAND(this) && !ONENAND_IS_4KB_PAGE(this))
return this->read_word(this->base + ONENAND_REG_ECC_STATUS);
for (i = 0; i < 4; i++) {
- ecc = this->read_word(this->base + ONENAND_REG_ECC_STATUS + i);
+ ecc = this->read_word(this->base + ONENAND_REG_ECC_STATUS + i*2);
if (likely(!ecc))
continue;
if (ecc & FLEXONENAND_UNCORRECTABLE_ERROR)
@@ -483,7 +538,7 @@ static int onenand_wait(struct mtd_info *mtd, int state)
if (interrupt & flags)
break;
- if (state != FL_READING)
+ if (state != FL_READING && state != FL_PREPARING_ERASE)
cond_resched();
}
/* To get correct interrupt status in timeout case */
@@ -500,25 +555,40 @@ static int onenand_wait(struct mtd_info *mtd, int state)
int ecc = onenand_read_ecc(this);
if (ecc) {
if (ecc & ONENAND_ECC_2BIT_ALL) {
- printk(KERN_ERR "onenand_wait: ECC error = 0x%04x\n", ecc);
+ printk(KERN_ERR "%s: ECC error = 0x%04x\n",
+ __func__, ecc);
mtd->ecc_stats.failed++;
return -EBADMSG;
} else if (ecc & ONENAND_ECC_1BIT_ALL) {
- printk(KERN_DEBUG "onenand_wait: correctable ECC error = 0x%04x\n", ecc);
+ printk(KERN_DEBUG "%s: correctable ECC error = 0x%04x\n",
+ __func__, ecc);
mtd->ecc_stats.corrected++;
}
}
} else if (state == FL_READING) {
- printk(KERN_ERR "onenand_wait: read timeout! ctrl=0x%04x intr=0x%04x\n", ctrl, interrupt);
+ printk(KERN_ERR "%s: read timeout! ctrl=0x%04x intr=0x%04x\n",
+ __func__, ctrl, interrupt);
+ return -EIO;
+ }
+
+ if (state == FL_PREPARING_ERASE && !(interrupt & ONENAND_INT_ERASE)) {
+ printk(KERN_ERR "%s: mb erase timeout! ctrl=0x%04x intr=0x%04x\n",
+ __func__, ctrl, interrupt);
+ return -EIO;
+ }
+
+ if (!(interrupt & ONENAND_INT_MASTER)) {
+ printk(KERN_ERR "%s: timeout! ctrl=0x%04x intr=0x%04x\n",
+ __func__, ctrl, interrupt);
return -EIO;
}
/* If there's controller error, it's a real error */
if (ctrl & ONENAND_CTRL_ERROR) {
- printk(KERN_ERR "onenand_wait: controller error = 0x%04x\n",
- ctrl);
+ printk(KERN_ERR "%s: controller error = 0x%04x\n",
+ __func__, ctrl);
if (ctrl & ONENAND_CTRL_LOCK)
- printk(KERN_ERR "onenand_wait: it's locked error.\n");
+ printk(KERN_ERR "%s: it's locked error.\n", __func__);
return -EIO;
}
@@ -906,6 +976,8 @@ static int onenand_get_device(struct mtd_info *mtd, int new_state)
if (this->state == FL_READY) {
this->state = new_state;
spin_unlock(&this->chip_lock);
+ if (new_state != FL_PM_SUSPENDED && this->enable)
+ this->enable(mtd);
break;
}
if (new_state == FL_PM_SUSPENDED) {
@@ -932,6 +1004,8 @@ static void onenand_release_device(struct mtd_info *mtd)
{
struct onenand_chip *this = mtd->priv;
+ if (this->state != FL_PM_SUSPENDED && this->disable)
+ this->disable(mtd);
/* Release the chip */
spin_lock(&this->chip_lock);
this->state = FL_READY;
@@ -940,7 +1014,7 @@ static void onenand_release_device(struct mtd_info *mtd)
}
/**
- * onenand_transfer_auto_oob - [Internal] oob auto-placement transfer
+ * onenand_transfer_auto_oob - [INTERN] oob auto-placement transfer
* @param mtd MTD device structure
* @param buf destination address
* @param column oob offset to read from
@@ -1004,7 +1078,7 @@ static int onenand_recover_lsb(struct mtd_info *mtd, loff_t addr, int status)
return status;
/* check if we failed due to uncorrectable error */
- if (status != -EBADMSG && status != ONENAND_BBT_READ_ECC_ERROR)
+ if (!mtd_is_eccerr(status) && status != ONENAND_BBT_READ_ECC_ERROR)
return status;
/* check if address lies in MLC region */
@@ -1015,7 +1089,8 @@ static int onenand_recover_lsb(struct mtd_info *mtd, loff_t addr, int status)
/* We are attempting to reread, so decrement stats.failed
* which was incremented by onenand_wait due to read failure
*/
- printk(KERN_INFO "onenand_recover_lsb: Attempting to recover from uncorrectable read\n");
+ printk(KERN_INFO "%s: Attempting to recover from uncorrectable read\n",
+ __func__);
mtd->ecc_stats.failed--;
/* Issue the LSB page recovery command */
@@ -1046,9 +1121,10 @@ static int onenand_mlc_read_ops_nolock(struct mtd_info *mtd, loff_t from,
int ret = 0;
int writesize = this->writesize;
- DEBUG(MTD_DEBUG_LEVEL3, "onenand_mlc_read_ops_nolock: from = 0x%08x, len = %i\n", (unsigned int) from, (int) len);
+ pr_debug("%s: from = 0x%08x, len = %i\n", __func__, (unsigned int)from,
+ (int)len);
- if (ops->mode == MTD_OOB_AUTO)
+ if (ops->mode == MTD_OPS_AUTO_OOB)
oobsize = this->ecclayout->oobavail;
else
oobsize = mtd->oobsize;
@@ -1057,7 +1133,8 @@ static int onenand_mlc_read_ops_nolock(struct mtd_info *mtd, loff_t from,
/* Do not allow reads past end of device */
if (from + len > mtd->size) {
- printk(KERN_ERR "onenand_mlc_read_ops_nolock: Attempt read beyond end of device\n");
+ printk(KERN_ERR "%s: Attempt read beyond end of device\n",
+ __func__);
ops->retlen = 0;
ops->oobretlen = 0;
return -EINVAL;
@@ -1081,8 +1158,10 @@ static int onenand_mlc_read_ops_nolock(struct mtd_info *mtd, loff_t from,
if (unlikely(ret))
ret = onenand_recover_lsb(mtd, from, ret);
onenand_update_bufferram(mtd, from, !ret);
- if (ret == -EBADMSG)
+ if (mtd_is_eccerr(ret))
ret = 0;
+ if (ret)
+ break;
}
this->read_bufferram(mtd, ONENAND_DATARAM, buf, column, thislen);
@@ -1090,7 +1169,7 @@ static int onenand_mlc_read_ops_nolock(struct mtd_info *mtd, loff_t from,
thisooblen = oobsize - oobcolumn;
thisooblen = min_t(int, thisooblen, ooblen - oobread);
- if (ops->mode == MTD_OOB_AUTO)
+ if (ops->mode == MTD_OPS_AUTO_OOB)
onenand_transfer_auto_oob(mtd, oobbuf, oobcolumn, thisooblen);
else
this->read_bufferram(mtd, ONENAND_SPARERAM, oobbuf, oobcolumn, thisooblen);
@@ -1121,7 +1200,8 @@ static int onenand_mlc_read_ops_nolock(struct mtd_info *mtd, loff_t from,
if (mtd->ecc_stats.failed - stats.failed)
return -EBADMSG;
- return mtd->ecc_stats.corrected - stats.corrected ? -EUCLEAN : 0;
+ /* return max bitflips per ecc step; ONENANDs correct 1 bit only */
+ return mtd->ecc_stats.corrected != stats.corrected ? 1 : 0;
}
/**
@@ -1146,9 +1226,10 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from,
int ret = 0, boundary = 0;
int writesize = this->writesize;
- DEBUG(MTD_DEBUG_LEVEL3, "onenand_read_ops_nolock: from = 0x%08x, len = %i\n", (unsigned int) from, (int) len);
+ pr_debug("%s: from = 0x%08x, len = %i\n", __func__, (unsigned int)from,
+ (int)len);
- if (ops->mode == MTD_OOB_AUTO)
+ if (ops->mode == MTD_OPS_AUTO_OOB)
oobsize = this->ecclayout->oobavail;
else
oobsize = mtd->oobsize;
@@ -1157,7 +1238,8 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from,
/* Do not allow reads past end of device */
if ((from + len) > mtd->size) {
- printk(KERN_ERR "onenand_read_ops_nolock: Attempt read beyond end of device\n");
+ printk(KERN_ERR "%s: Attempt read beyond end of device\n",
+ __func__);
ops->retlen = 0;
ops->oobretlen = 0;
return -EINVAL;
@@ -1173,7 +1255,7 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from,
this->command(mtd, ONENAND_CMD_READ, from, writesize);
ret = this->wait(mtd, FL_READING);
onenand_update_bufferram(mtd, from, !ret);
- if (ret == -EBADMSG)
+ if (mtd_is_eccerr(ret))
ret = 0;
}
}
@@ -1191,7 +1273,7 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from,
/*
* Chip boundary handling in DDP
* Now we issued chip 1 read and pointed chip 1
- * bufferam so we have to point chip 0 bufferam.
+ * bufferram so we have to point chip 0 bufferram.
*/
if (ONENAND_IS_DDP(this) &&
unlikely(from == (this->chipsize >> 1))) {
@@ -1209,7 +1291,7 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from,
thisooblen = oobsize - oobcolumn;
thisooblen = min_t(int, thisooblen, ooblen - oobread);
- if (ops->mode == MTD_OOB_AUTO)
+ if (ops->mode == MTD_OPS_AUTO_OOB)
onenand_transfer_auto_oob(mtd, oobbuf, oobcolumn, thisooblen);
else
this->read_bufferram(mtd, ONENAND_SPARERAM, oobbuf, oobcolumn, thisooblen);
@@ -1233,7 +1315,7 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from,
/* Now wait for load */
ret = this->wait(mtd, FL_READING);
onenand_update_bufferram(mtd, from, !ret);
- if (ret == -EBADMSG)
+ if (mtd_is_eccerr(ret))
ret = 0;
}
@@ -1251,7 +1333,8 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from,
if (mtd->ecc_stats.failed - stats.failed)
return -EBADMSG;
- return mtd->ecc_stats.corrected - stats.corrected ? -EUCLEAN : 0;
+ /* return max bitflips per ecc step; ONENANDs correct 1 bit only */
+ return mtd->ecc_stats.corrected != stats.corrected ? 1 : 0;
}
/**
@@ -1269,18 +1352,19 @@ static int onenand_read_oob_nolock(struct mtd_info *mtd, loff_t from,
struct mtd_ecc_stats stats;
int read = 0, thislen, column, oobsize;
size_t len = ops->ooblen;
- mtd_oob_mode_t mode = ops->mode;
+ unsigned int mode = ops->mode;
u_char *buf = ops->oobbuf;
int ret = 0, readcmd;
from += ops->ooboffs;
- DEBUG(MTD_DEBUG_LEVEL3, "onenand_read_oob_nolock: from = 0x%08x, len = %i\n", (unsigned int) from, (int) len);
+ pr_debug("%s: from = 0x%08x, len = %i\n", __func__, (unsigned int)from,
+ (int)len);
/* Initialize return length value */
ops->oobretlen = 0;
- if (mode == MTD_OOB_AUTO)
+ if (mode == MTD_OPS_AUTO_OOB)
oobsize = this->ecclayout->oobavail;
else
oobsize = mtd->oobsize;
@@ -1288,7 +1372,8 @@ static int onenand_read_oob_nolock(struct mtd_info *mtd, loff_t from,
column = from & (mtd->oobsize - 1);
if (unlikely(column >= oobsize)) {
- printk(KERN_ERR "onenand_read_oob_nolock: Attempted to start read outside oob\n");
+ printk(KERN_ERR "%s: Attempted to start read outside oob\n",
+ __func__);
return -EINVAL;
}
@@ -1296,13 +1381,14 @@ static int onenand_read_oob_nolock(struct mtd_info *mtd, loff_t from,
if (unlikely(from >= mtd->size ||
column + len > ((mtd->size >> this->page_shift) -
(from >> this->page_shift)) * oobsize)) {
- printk(KERN_ERR "onenand_read_oob_nolock: Attempted to read beyond end of device\n");
+ printk(KERN_ERR "%s: Attempted to read beyond end of device\n",
+ __func__);
return -EINVAL;
}
stats = mtd->ecc_stats;
- readcmd = ONENAND_IS_MLC(this) ? ONENAND_CMD_READ : ONENAND_CMD_READOOB;
+ readcmd = ONENAND_IS_4KB_PAGE(this) ? ONENAND_CMD_READ : ONENAND_CMD_READOOB;
while (read < len) {
cond_resched();
@@ -1318,12 +1404,13 @@ static int onenand_read_oob_nolock(struct mtd_info *mtd, loff_t from,
if (unlikely(ret))
ret = onenand_recover_lsb(mtd, from, ret);
- if (ret && ret != -EBADMSG) {
- printk(KERN_ERR "onenand_read_oob_nolock: read failed = 0x%x\n", ret);
+ if (ret && !mtd_is_eccerr(ret)) {
+ printk(KERN_ERR "%s: read failed = 0x%x\n",
+ __func__, ret);
break;
}
- if (mode == MTD_OOB_AUTO)
+ if (mode == MTD_OPS_AUTO_OOB)
onenand_transfer_auto_oob(mtd, buf, column, thislen);
else
this->read_bufferram(mtd, ONENAND_SPARERAM, buf, column, thislen);
@@ -1377,7 +1464,7 @@ static int onenand_read(struct mtd_info *mtd, loff_t from, size_t len,
int ret;
onenand_get_device(mtd, FL_READING);
- ret = ONENAND_IS_MLC(this) ?
+ ret = ONENAND_IS_4KB_PAGE(this) ?
onenand_mlc_read_ops_nolock(mtd, from, &ops) :
onenand_read_ops_nolock(mtd, from, &ops);
onenand_release_device(mtd);
@@ -1401,10 +1488,10 @@ static int onenand_read_oob(struct mtd_info *mtd, loff_t from,
int ret;
switch (ops->mode) {
- case MTD_OOB_PLACE:
- case MTD_OOB_AUTO:
+ case MTD_OPS_PLACE_OOB:
+ case MTD_OPS_AUTO_OOB:
break;
- case MTD_OOB_RAW:
+ case MTD_OPS_RAW:
/* Not implemented yet */
default:
return -EINVAL;
@@ -1412,7 +1499,7 @@ static int onenand_read_oob(struct mtd_info *mtd, loff_t from,
onenand_get_device(mtd, FL_READING);
if (ops->datbuf)
- ret = ONENAND_IS_MLC(this) ?
+ ret = ONENAND_IS_4KB_PAGE(this) ?
onenand_mlc_read_ops_nolock(mtd, from, ops) :
onenand_read_ops_nolock(mtd, from, ops);
else
@@ -1433,8 +1520,7 @@ static int onenand_bbt_wait(struct mtd_info *mtd, int state)
{
struct onenand_chip *this = mtd->priv;
unsigned long timeout;
- unsigned int interrupt;
- unsigned int ctrl;
+ unsigned int interrupt, ctrl, ecc, addr1, addr8;
/* The 20 msec is enough */
timeout = jiffies + msecs_to_jiffies(20);
@@ -1446,24 +1532,28 @@ static int onenand_bbt_wait(struct mtd_info *mtd, int state)
/* To get correct interrupt status in timeout case */
interrupt = this->read_word(this->base + ONENAND_REG_INTERRUPT);
ctrl = this->read_word(this->base + ONENAND_REG_CTRL_STATUS);
+ addr1 = this->read_word(this->base + ONENAND_REG_START_ADDRESS1);
+ addr8 = this->read_word(this->base + ONENAND_REG_START_ADDRESS8);
if (interrupt & ONENAND_INT_READ) {
- int ecc = onenand_read_ecc(this);
+ ecc = onenand_read_ecc(this);
if (ecc & ONENAND_ECC_2BIT_ALL) {
- printk(KERN_INFO "onenand_bbt_wait: ecc error = 0x%04x"
- ", controller error 0x%04x\n", ecc, ctrl);
+ printk(KERN_DEBUG "%s: ecc 0x%04x ctrl 0x%04x "
+ "intr 0x%04x addr1 %#x addr8 %#x\n",
+ __func__, ecc, ctrl, interrupt, addr1, addr8);
return ONENAND_BBT_READ_ECC_ERROR;
}
} else {
- printk(KERN_ERR "onenand_bbt_wait: read timeout!"
- "ctrl=0x%04x intr=0x%04x\n", ctrl, interrupt);
+ printk(KERN_ERR "%s: read timeout! ctrl 0x%04x "
+ "intr 0x%04x addr1 %#x addr8 %#x\n",
+ __func__, ctrl, interrupt, addr1, addr8);
return ONENAND_BBT_READ_FATAL_ERROR;
}
/* Initial bad block case: 0x2400 or 0x0400 */
if (ctrl & ONENAND_CTRL_ERROR) {
- printk(KERN_DEBUG "onenand_bbt_wait: "
- "controller error = 0x%04x\n", ctrl);
+ printk(KERN_DEBUG "%s: ctrl 0x%04x intr 0x%04x addr1 %#x "
+ "addr8 %#x\n", __func__, ctrl, interrupt, addr1, addr8);
return ONENAND_BBT_READ_ERROR;
}
@@ -1487,14 +1577,16 @@ int onenand_bbt_read_oob(struct mtd_info *mtd, loff_t from,
size_t len = ops->ooblen;
u_char *buf = ops->oobbuf;
- DEBUG(MTD_DEBUG_LEVEL3, "onenand_bbt_read_oob: from = 0x%08x, len = %zi\n", (unsigned int) from, len);
+ pr_debug("%s: from = 0x%08x, len = %zi\n", __func__, (unsigned int)from,
+ len);
/* Initialize return value */
ops->oobretlen = 0;
/* Do not allow reads past end of device */
if (unlikely((from + len) > mtd->size)) {
- printk(KERN_ERR "onenand_bbt_read_oob: Attempt read beyond end of device\n");
+ printk(KERN_ERR "%s: Attempt read beyond end of device\n",
+ __func__);
return ONENAND_BBT_READ_FATAL_ERROR;
}
@@ -1503,7 +1595,7 @@ int onenand_bbt_read_oob(struct mtd_info *mtd, loff_t from,
column = from & (mtd->oobsize - 1);
- readcmd = ONENAND_IS_MLC(this) ? ONENAND_CMD_READ : ONENAND_CMD_READOOB;
+ readcmd = ONENAND_IS_4KB_PAGE(this) ? ONENAND_CMD_READ : ONENAND_CMD_READOOB;
while (read < len) {
cond_resched();
@@ -1557,7 +1649,7 @@ static int onenand_verify_oob(struct mtd_info *mtd, const u_char *buf, loff_t to
u_char *oob_buf = this->oob_buf;
int status, i, readcmd;
- readcmd = ONENAND_IS_MLC(this) ? ONENAND_CMD_READ : ONENAND_CMD_READOOB;
+ readcmd = ONENAND_IS_4KB_PAGE(this) ? ONENAND_CMD_READ : ONENAND_CMD_READOOB;
this->command(mtd, readcmd, to, mtd->oobsize);
onenand_update_bufferram(mtd, to, 0);
@@ -1583,15 +1675,13 @@ static int onenand_verify_oob(struct mtd_info *mtd, const u_char *buf, loff_t to
static int onenand_verify(struct mtd_info *mtd, const u_char *buf, loff_t addr, size_t len)
{
struct onenand_chip *this = mtd->priv;
- void __iomem *dataram;
int ret = 0;
int thislen, column;
+ column = addr & (this->writesize - 1);
+
while (len != 0) {
- thislen = min_t(int, this->writesize, len);
- column = addr & (this->writesize - 1);
- if (column + thislen > this->writesize)
- thislen = this->writesize - column;
+ thislen = min_t(int, this->writesize - column, len);
this->command(mtd, ONENAND_CMD_READ, addr, this->writesize);
@@ -1603,15 +1693,15 @@ static int onenand_verify(struct mtd_info *mtd, const u_char *buf, loff_t addr,
onenand_update_bufferram(mtd, addr, 1);
- dataram = this->base + ONENAND_DATARAM;
- dataram += onenand_bufferram_offset(mtd, ONENAND_DATARAM);
+ this->read_bufferram(mtd, ONENAND_DATARAM, this->verify_buf, 0, mtd->writesize);
- if (memcmp(buf, dataram + column, thislen))
+ if (memcmp(buf, this->verify_buf + column, thislen))
return -EBADMSG;
len -= thislen;
buf += thislen;
addr += thislen;
+ column = 0;
}
return 0;
@@ -1661,21 +1751,13 @@ static int onenand_panic_write(struct mtd_info *mtd, loff_t to, size_t len,
/* Wait for any existing operation to clear */
onenand_panic_wait(mtd);
- DEBUG(MTD_DEBUG_LEVEL3, "onenand_panic_write: to = 0x%08x, len = %i\n",
- (unsigned int) to, (int) len);
-
- /* Initialize retlen, in case of early exit */
- *retlen = 0;
-
- /* Do not allow writes past end of device */
- if (unlikely((to + len) > mtd->size)) {
- printk(KERN_ERR "onenand_panic_write: Attempt write to past end of device\n");
- return -EINVAL;
- }
+ pr_debug("%s: to = 0x%08x, len = %i\n", __func__, (unsigned int)to,
+ (int)len);
/* Reject writes, which are not page aligned */
if (unlikely(NOTALIGNED(to) || NOTALIGNED(len))) {
- printk(KERN_ERR "onenand_panic_write: Attempt to write not page aligned data\n");
+ printk(KERN_ERR "%s: Attempt to write not page aligned data\n",
+ __func__);
return -EINVAL;
}
@@ -1711,7 +1793,7 @@ static int onenand_panic_write(struct mtd_info *mtd, loff_t to, size_t len,
}
if (ret) {
- printk(KERN_ERR "onenand_panic_write: write failed %d\n", ret);
+ printk(KERN_ERR "%s: write failed %d\n", __func__, ret);
break;
}
@@ -1730,7 +1812,7 @@ static int onenand_panic_write(struct mtd_info *mtd, loff_t to, size_t len,
}
/**
- * onenand_fill_auto_oob - [Internal] oob auto-placement transfer
+ * onenand_fill_auto_oob - [INTERN] oob auto-placement transfer
* @param mtd MTD device structure
* @param oob_buf oob buffer
* @param buf source address
@@ -1790,23 +1872,19 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to,
const u_char *buf = ops->datbuf;
const u_char *oob = ops->oobbuf;
u_char *oobbuf;
- int ret = 0;
+ int ret = 0, cmd;
- DEBUG(MTD_DEBUG_LEVEL3, "onenand_write_ops_nolock: to = 0x%08x, len = %i\n", (unsigned int) to, (int) len);
+ pr_debug("%s: to = 0x%08x, len = %i\n", __func__, (unsigned int)to,
+ (int)len);
/* Initialize retlen, in case of early exit */
ops->retlen = 0;
ops->oobretlen = 0;
- /* Do not allow writes past end of device */
- if (unlikely((to + len) > mtd->size)) {
- printk(KERN_ERR "onenand_write_ops_nolock: Attempt write to past end of device\n");
- return -EINVAL;
- }
-
/* Reject writes, which are not page aligned */
if (unlikely(NOTALIGNED(to) || NOTALIGNED(len))) {
- printk(KERN_ERR "onenand_write_ops_nolock: Attempt to write not page aligned data\n");
+ printk(KERN_ERR "%s: Attempt to write not page aligned data\n",
+ __func__);
return -EINVAL;
}
@@ -1814,7 +1892,7 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to,
if (!len)
return 0;
- if (ops->mode == MTD_OOB_AUTO)
+ if (ops->mode == MTD_OPS_AUTO_OOB)
oobsize = this->ecclayout->oobavail;
else
oobsize = mtd->oobsize;
@@ -1851,7 +1929,7 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to,
/* We send data to spare ram with oobsize
* to prevent byte access */
memset(oobbuf, 0xff, mtd->oobsize);
- if (ops->mode == MTD_OOB_AUTO)
+ if (ops->mode == MTD_OPS_AUTO_OOB)
onenand_fill_auto_oob(mtd, oobbuf, oob, oobcolumn, thisooblen);
else
memcpy(oobbuf + oobcolumn, oob, thisooblen);
@@ -1867,10 +1945,10 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to,
ONENAND_SET_NEXT_BUFFERRAM(this);
/*
- * 2 PLANE, MLC, and Flex-OneNAND doesn't support
- * write-while-programe feature.
+ * 2 PLANE, MLC, and Flex-OneNAND do not support
+ * write-while-program feature.
*/
- if (!ONENAND_IS_2PLANE(this) && !first) {
+ if (!ONENAND_IS_2PLANE(this) && !ONENAND_IS_4KB_PAGE(this) && !first) {
ONENAND_SET_PREV_BUFFERRAM(this);
ret = this->wait(mtd, FL_WRITING);
@@ -1879,7 +1957,8 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to,
onenand_update_bufferram(mtd, prev, !ret && !prev_subpage);
if (ret) {
written -= prevlen;
- printk(KERN_ERR "onenand_write_ops_nolock: write filaed %d\n", ret);
+ printk(KERN_ERR "%s: write failed %d\n",
+ __func__, ret);
break;
}
@@ -1887,32 +1966,47 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to,
/* Only check verify write turn on */
ret = onenand_verify(mtd, buf - len, to - len, len);
if (ret)
- printk(KERN_ERR "onenand_write_ops_nolock: verify failed %d\n", ret);
+ printk(KERN_ERR "%s: verify failed %d\n",
+ __func__, ret);
break;
}
ONENAND_SET_NEXT_BUFFERRAM(this);
}
- this->command(mtd, ONENAND_CMD_PROG, to, mtd->writesize);
+ this->ongoing = 0;
+ cmd = ONENAND_CMD_PROG;
+
+ /* Exclude 1st OTP and OTP blocks for cache program feature */
+ if (ONENAND_IS_CACHE_PROGRAM(this) &&
+ likely(onenand_block(this, to) != 0) &&
+ ONENAND_IS_4KB_PAGE(this) &&
+ ((written + thislen) < len)) {
+ cmd = ONENAND_CMD_2X_CACHE_PROG;
+ this->ongoing = 1;
+ }
+
+ this->command(mtd, cmd, to, mtd->writesize);
/*
* 2 PLANE, MLC, and Flex-OneNAND wait here
*/
- if (ONENAND_IS_2PLANE(this)) {
+ if (ONENAND_IS_2PLANE(this) || ONENAND_IS_4KB_PAGE(this)) {
ret = this->wait(mtd, FL_WRITING);
/* In partial page write we don't update bufferram */
onenand_update_bufferram(mtd, to, !ret && !subpage);
if (ret) {
- printk(KERN_ERR "onenand_write_ops_nolock: write filaed %d\n", ret);
+ printk(KERN_ERR "%s: write failed %d\n",
+ __func__, ret);
break;
}
/* Only check verify write turn on */
ret = onenand_verify(mtd, buf, to, thislen);
if (ret) {
- printk(KERN_ERR "onenand_write_ops_nolock: verify failed %d\n", ret);
+ printk(KERN_ERR "%s: verify failed %d\n",
+ __func__, ret);
break;
}
@@ -1945,7 +2039,7 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to,
/**
- * onenand_write_oob_nolock - [Internal] OneNAND write out-of-band
+ * onenand_write_oob_nolock - [INTERN] OneNAND write out-of-band
* @param mtd MTD device structure
* @param to offset to write to
* @param len number of bytes to write
@@ -1964,16 +2058,17 @@ static int onenand_write_oob_nolock(struct mtd_info *mtd, loff_t to,
u_char *oobbuf;
size_t len = ops->ooblen;
const u_char *buf = ops->oobbuf;
- mtd_oob_mode_t mode = ops->mode;
+ unsigned int mode = ops->mode;
to += ops->ooboffs;
- DEBUG(MTD_DEBUG_LEVEL3, "onenand_write_oob_nolock: to = 0x%08x, len = %i\n", (unsigned int) to, (int) len);
+ pr_debug("%s: to = 0x%08x, len = %i\n", __func__, (unsigned int)to,
+ (int)len);
/* Initialize retlen, in case of early exit */
ops->oobretlen = 0;
- if (mode == MTD_OOB_AUTO)
+ if (mode == MTD_OPS_AUTO_OOB)
oobsize = this->ecclayout->oobavail;
else
oobsize = mtd->oobsize;
@@ -1981,14 +2076,15 @@ static int onenand_write_oob_nolock(struct mtd_info *mtd, loff_t to,
column = to & (mtd->oobsize - 1);
if (unlikely(column >= oobsize)) {
- printk(KERN_ERR "onenand_write_oob_nolock: Attempted to start write outside oob\n");
+ printk(KERN_ERR "%s: Attempted to start write outside oob\n",
+ __func__);
return -EINVAL;
}
/* For compatibility with NAND: Do not allow write past end of page */
if (unlikely(column + len > oobsize)) {
- printk(KERN_ERR "onenand_write_oob_nolock: "
- "Attempt to write past end of page\n");
+ printk(KERN_ERR "%s: Attempt to write past end of page\n",
+ __func__);
return -EINVAL;
}
@@ -1996,13 +2092,14 @@ static int onenand_write_oob_nolock(struct mtd_info *mtd, loff_t to,
if (unlikely(to >= mtd->size ||
column + len > ((mtd->size >> this->page_shift) -
(to >> this->page_shift)) * oobsize)) {
- printk(KERN_ERR "onenand_write_oob_nolock: Attempted to write past end of device\n");
+ printk(KERN_ERR "%s: Attempted to write past end of device\n",
+ __func__);
return -EINVAL;
}
oobbuf = this->oob_buf;
- oobcmd = ONENAND_IS_MLC(this) ? ONENAND_CMD_PROG : ONENAND_CMD_PROGOOB;
+ oobcmd = ONENAND_IS_4KB_PAGE(this) ? ONENAND_CMD_PROG : ONENAND_CMD_PROGOOB;
/* Loop until all data write */
while (written < len) {
@@ -2015,13 +2112,13 @@ static int onenand_write_oob_nolock(struct mtd_info *mtd, loff_t to,
/* We send data to spare ram with oobsize
* to prevent byte access */
memset(oobbuf, 0xff, mtd->oobsize);
- if (mode == MTD_OOB_AUTO)
+ if (mode == MTD_OPS_AUTO_OOB)
onenand_fill_auto_oob(mtd, oobbuf, buf, column, thislen);
else
memcpy(oobbuf + column, buf, thislen);
this->write_bufferram(mtd, ONENAND_SPARERAM, oobbuf, 0, mtd->oobsize);
- if (ONENAND_IS_MLC(this)) {
+ if (ONENAND_IS_4KB_PAGE(this)) {
/* Set main area of DataRAM to 0xff*/
memset(this->page_buf, 0xff, mtd->writesize);
this->write_bufferram(mtd, ONENAND_DATARAM,
@@ -2038,13 +2135,14 @@ static int onenand_write_oob_nolock(struct mtd_info *mtd, loff_t to,
ret = this->wait(mtd, FL_WRITING);
if (ret) {
- printk(KERN_ERR "onenand_write_oob_nolock: write failed %d\n", ret);
+ printk(KERN_ERR "%s: write failed %d\n", __func__, ret);
break;
}
ret = onenand_verify_oob(mtd, oobbuf, to);
if (ret) {
- printk(KERN_ERR "onenand_write_oob_nolock: verify failed %d\n", ret);
+ printk(KERN_ERR "%s: verify failed %d\n",
+ __func__, ret);
break;
}
@@ -2103,10 +2201,10 @@ static int onenand_write_oob(struct mtd_info *mtd, loff_t to,
int ret;
switch (ops->mode) {
- case MTD_OOB_PLACE:
- case MTD_OOB_AUTO:
+ case MTD_OPS_PLACE_OOB:
+ case MTD_OPS_AUTO_OOB:
break;
- case MTD_OOB_RAW:
+ case MTD_OPS_RAW:
/* Not implemented yet */
default:
return -EINVAL;
@@ -2140,78 +2238,186 @@ static int onenand_block_isbad_nolock(struct mtd_info *mtd, loff_t ofs, int allo
return bbm->isbad_bbt(mtd, ofs, allowbbt);
}
+
+static int onenand_multiblock_erase_verify(struct mtd_info *mtd,
+ struct erase_info *instr)
+{
+ struct onenand_chip *this = mtd->priv;
+ loff_t addr = instr->addr;
+ int len = instr->len;
+ unsigned int block_size = (1 << this->erase_shift);
+ int ret = 0;
+
+ while (len) {
+ this->command(mtd, ONENAND_CMD_ERASE_VERIFY, addr, block_size);
+ ret = this->wait(mtd, FL_VERIFYING_ERASE);
+ if (ret) {
+ printk(KERN_ERR "%s: Failed verify, block %d\n",
+ __func__, onenand_block(this, addr));
+ instr->state = MTD_ERASE_FAILED;
+ instr->fail_addr = addr;
+ return -1;
+ }
+ len -= block_size;
+ addr += block_size;
+ }
+ return 0;
+}
+
/**
- * onenand_erase - [MTD Interface] erase block(s)
+ * onenand_multiblock_erase - [INTERN] erase block(s) using multiblock erase
* @param mtd MTD device structure
* @param instr erase instruction
+ * @param region erase region
*
- * Erase one ore more blocks
+ * Erase one or more blocks up to 64 block at a time
*/
-static int onenand_erase(struct mtd_info *mtd, struct erase_info *instr)
+static int onenand_multiblock_erase(struct mtd_info *mtd,
+ struct erase_info *instr,
+ unsigned int block_size)
{
struct onenand_chip *this = mtd->priv;
- unsigned int block_size;
loff_t addr = instr->addr;
- loff_t len = instr->len;
- int ret = 0, i;
- struct mtd_erase_region_info *region = NULL;
- loff_t region_end = 0;
+ int len = instr->len;
+ int eb_count = 0;
+ int ret = 0;
+ int bdry_block = 0;
- DEBUG(MTD_DEBUG_LEVEL3, "onenand_erase: start = 0x%012llx, len = %llu\n", (unsigned long long) instr->addr, (unsigned long long) instr->len);
+ instr->state = MTD_ERASING;
- /* Do not allow erase past end of device */
- if (unlikely((len + addr) > mtd->size)) {
- printk(KERN_ERR "onenand_erase: Erase past end of device\n");
- return -EINVAL;
+ if (ONENAND_IS_DDP(this)) {
+ loff_t bdry_addr = this->chipsize >> 1;
+ if (addr < bdry_addr && (addr + len) > bdry_addr)
+ bdry_block = bdry_addr >> this->erase_shift;
}
- if (FLEXONENAND(this)) {
- /* Find the eraseregion of this address */
- i = flexonenand_region(mtd, addr);
- region = &mtd->eraseregions[i];
+ /* Pre-check bbs */
+ while (len) {
+ /* Check if we have a bad block, we do not erase bad blocks */
+ if (onenand_block_isbad_nolock(mtd, addr, 0)) {
+ printk(KERN_WARNING "%s: attempt to erase a bad block "
+ "at addr 0x%012llx\n",
+ __func__, (unsigned long long) addr);
+ instr->state = MTD_ERASE_FAILED;
+ return -EIO;
+ }
+ len -= block_size;
+ addr += block_size;
+ }
- block_size = region->erasesize;
- region_end = region->offset + region->erasesize * region->numblocks;
+ len = instr->len;
+ addr = instr->addr;
- /* Start address within region must align on block boundary.
- * Erase region's start offset is always block start address.
- */
- if (unlikely((addr - region->offset) & (block_size - 1))) {
- printk(KERN_ERR "onenand_erase: Unaligned address\n");
- return -EINVAL;
+ /* loop over 64 eb batches */
+ while (len) {
+ struct erase_info verify_instr = *instr;
+ int max_eb_count = MB_ERASE_MAX_BLK_COUNT;
+
+ verify_instr.addr = addr;
+ verify_instr.len = 0;
+
+ /* do not cross chip boundary */
+ if (bdry_block) {
+ int this_block = (addr >> this->erase_shift);
+
+ if (this_block < bdry_block) {
+ max_eb_count = min(max_eb_count,
+ (bdry_block - this_block));
+ }
}
- } else {
- block_size = 1 << this->erase_shift;
- /* Start address must align on block boundary */
- if (unlikely(addr & (block_size - 1))) {
- printk(KERN_ERR "onenand_erase: Unaligned address\n");
- return -EINVAL;
+ eb_count = 0;
+
+ while (len > block_size && eb_count < (max_eb_count - 1)) {
+ this->command(mtd, ONENAND_CMD_MULTIBLOCK_ERASE,
+ addr, block_size);
+ onenand_invalidate_bufferram(mtd, addr, block_size);
+
+ ret = this->wait(mtd, FL_PREPARING_ERASE);
+ if (ret) {
+ printk(KERN_ERR "%s: Failed multiblock erase, "
+ "block %d\n", __func__,
+ onenand_block(this, addr));
+ instr->state = MTD_ERASE_FAILED;
+ instr->fail_addr = MTD_FAIL_ADDR_UNKNOWN;
+ return -EIO;
+ }
+
+ len -= block_size;
+ addr += block_size;
+ eb_count++;
+ }
+
+ /* last block of 64-eb series */
+ cond_resched();
+ this->command(mtd, ONENAND_CMD_ERASE, addr, block_size);
+ onenand_invalidate_bufferram(mtd, addr, block_size);
+
+ ret = this->wait(mtd, FL_ERASING);
+ /* Check if it is write protected */
+ if (ret) {
+ printk(KERN_ERR "%s: Failed erase, block %d\n",
+ __func__, onenand_block(this, addr));
+ instr->state = MTD_ERASE_FAILED;
+ instr->fail_addr = MTD_FAIL_ADDR_UNKNOWN;
+ return -EIO;
+ }
+
+ len -= block_size;
+ addr += block_size;
+ eb_count++;
+
+ /* verify */
+ verify_instr.len = eb_count * block_size;
+ if (onenand_multiblock_erase_verify(mtd, &verify_instr)) {
+ instr->state = verify_instr.state;
+ instr->fail_addr = verify_instr.fail_addr;
+ return -EIO;
}
- }
- /* Length must align on block boundary */
- if (unlikely(len & (block_size - 1))) {
- printk(KERN_ERR "onenand_erase: Length not block aligned\n");
- return -EINVAL;
}
+ return 0;
+}
- instr->fail_addr = MTD_FAIL_ADDR_UNKNOWN;
- /* Grab the lock and see if the device is available */
- onenand_get_device(mtd, FL_ERASING);
+/**
+ * onenand_block_by_block_erase - [INTERN] erase block(s) using regular erase
+ * @param mtd MTD device structure
+ * @param instr erase instruction
+ * @param region erase region
+ * @param block_size erase block size
+ *
+ * Erase one or more blocks one block at a time
+ */
+static int onenand_block_by_block_erase(struct mtd_info *mtd,
+ struct erase_info *instr,
+ struct mtd_erase_region_info *region,
+ unsigned int block_size)
+{
+ struct onenand_chip *this = mtd->priv;
+ loff_t addr = instr->addr;
+ int len = instr->len;
+ loff_t region_end = 0;
+ int ret = 0;
+
+ if (region) {
+ /* region is set for Flex-OneNAND */
+ region_end = region->offset + region->erasesize * region->numblocks;
+ }
- /* Loop throught the pages */
instr->state = MTD_ERASING;
+ /* Loop through the blocks */
while (len) {
cond_resched();
/* Check if we have a bad block, we do not erase bad blocks */
if (onenand_block_isbad_nolock(mtd, addr, 0)) {
- printk (KERN_WARNING "onenand_erase: attempt to erase a bad block at addr 0x%012llx\n", (unsigned long long) addr);
+ printk(KERN_WARNING "%s: attempt to erase a bad block "
+ "at addr 0x%012llx\n",
+ __func__, (unsigned long long) addr);
instr->state = MTD_ERASE_FAILED;
- goto erase_exit;
+ return -EIO;
}
this->command(mtd, ONENAND_CMD_ERASE, addr, block_size);
@@ -2221,17 +2427,17 @@ static int onenand_erase(struct mtd_info *mtd, struct erase_info *instr)
ret = this->wait(mtd, FL_ERASING);
/* Check, if it is write protected */
if (ret) {
- printk(KERN_ERR "onenand_erase: Failed erase, block %d\n",
- onenand_block(this, addr));
+ printk(KERN_ERR "%s: Failed erase, block %d\n",
+ __func__, onenand_block(this, addr));
instr->state = MTD_ERASE_FAILED;
instr->fail_addr = addr;
- goto erase_exit;
+ return -EIO;
}
len -= block_size;
addr += block_size;
- if (addr == region_end) {
+ if (region && addr == region_end) {
if (!len)
break;
region++;
@@ -2241,25 +2447,82 @@ static int onenand_erase(struct mtd_info *mtd, struct erase_info *instr)
if (len & (block_size - 1)) {
/* FIXME: This should be handled at MTD partitioning level. */
- printk(KERN_ERR "onenand_erase: Unaligned address\n");
- goto erase_exit;
+ printk(KERN_ERR "%s: Unaligned address\n",
+ __func__);
+ return -EIO;
}
}
+ }
+ return 0;
+}
+
+/**
+ * onenand_erase - [MTD Interface] erase block(s)
+ * @param mtd MTD device structure
+ * @param instr erase instruction
+ *
+ * Erase one or more blocks
+ */
+static int onenand_erase(struct mtd_info *mtd, struct erase_info *instr)
+{
+ struct onenand_chip *this = mtd->priv;
+ unsigned int block_size;
+ loff_t addr = instr->addr;
+ loff_t len = instr->len;
+ int ret = 0;
+ struct mtd_erase_region_info *region = NULL;
+ loff_t region_offset = 0;
+
+ pr_debug("%s: start=0x%012llx, len=%llu\n", __func__,
+ (unsigned long long)instr->addr,
+ (unsigned long long)instr->len);
+
+ if (FLEXONENAND(this)) {
+ /* Find the eraseregion of this address */
+ int i = flexonenand_region(mtd, addr);
+
+ region = &mtd->eraseregions[i];
+ block_size = region->erasesize;
+
+ /* Start address within region must align on block boundary.
+ * Erase region's start offset is always block start address.
+ */
+ region_offset = region->offset;
+ } else
+ block_size = 1 << this->erase_shift;
+ /* Start address must align on block boundary */
+ if (unlikely((addr - region_offset) & (block_size - 1))) {
+ printk(KERN_ERR "%s: Unaligned address\n", __func__);
+ return -EINVAL;
}
- instr->state = MTD_ERASE_DONE;
+ /* Length must align on block boundary */
+ if (unlikely(len & (block_size - 1))) {
+ printk(KERN_ERR "%s: Length not block aligned\n", __func__);
+ return -EINVAL;
+ }
-erase_exit:
+ /* Grab the lock and see if the device is available */
+ onenand_get_device(mtd, FL_ERASING);
- ret = instr->state == MTD_ERASE_DONE ? 0 : -EIO;
+ if (ONENAND_IS_4KB_PAGE(this) || region ||
+ instr->len < MB_ERASE_MIN_BLK_COUNT * block_size) {
+ /* region is set for Flex-OneNAND (no mb erase) */
+ ret = onenand_block_by_block_erase(mtd, instr,
+ region, block_size);
+ } else {
+ ret = onenand_multiblock_erase(mtd, instr, block_size);
+ }
/* Deselect and wake up anyone waiting on the device */
onenand_release_device(mtd);
/* Do call back function */
- if (!ret)
+ if (!ret) {
+ instr->state = MTD_ERASE_DONE;
mtd_erase_callback(instr);
+ }
return ret;
}
@@ -2272,7 +2535,7 @@ erase_exit:
*/
static void onenand_sync(struct mtd_info *mtd)
{
- DEBUG(MTD_DEBUG_LEVEL3, "onenand_sync: called\n");
+ pr_debug("%s: called\n", __func__);
/* Grab the lock and see if the device is available */
onenand_get_device(mtd, FL_SYNCING);
@@ -2292,10 +2555,6 @@ static int onenand_block_isbad(struct mtd_info *mtd, loff_t ofs)
{
int ret;
- /* Check for invalid offset */
- if (ofs > mtd->size)
- return -EINVAL;
-
onenand_get_device(mtd, FL_READING);
ret = onenand_block_isbad_nolock(mtd, ofs, 0);
onenand_release_device(mtd);
@@ -2316,7 +2575,7 @@ static int onenand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
struct bbm_info *bbm = this->bbm;
u_char buf[2] = {0, 0};
struct mtd_oob_ops ops = {
- .mode = MTD_OOB_PLACE,
+ .mode = MTD_OPS_PLACE_OOB,
.ooblen = 2,
.oobbuf = buf,
.ooboffs = 0,
@@ -2328,7 +2587,7 @@ static int onenand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
if (bbm->bbt)
bbm->bbt[block >> 2] |= 0x01 << ((block & 0x03) << 1);
- /* We write two bytes, so we dont have to mess with 16 bit access */
+ /* We write two bytes, so we don't have to mess with 16-bit access */
ofs += mtd->oobsize + (bbm->badblockpos & ~0x01);
/* FIXME : What to do when marking SLC block in partition
* with MLC erasesize? For now, it is not advisable to
@@ -2346,7 +2605,6 @@ static int onenand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
*/
static int onenand_block_markbad(struct mtd_info *mtd, loff_t ofs)
{
- struct onenand_chip *this = mtd->priv;
int ret;
ret = onenand_block_isbad(mtd, ofs);
@@ -2358,7 +2616,7 @@ static int onenand_block_markbad(struct mtd_info *mtd, loff_t ofs)
}
onenand_get_device(mtd, FL_WRITING);
- ret = this->block_markbad(mtd, ofs);
+ ret = mtd_block_markbad(mtd, ofs);
onenand_release_device(mtd);
return ret;
}
@@ -2406,7 +2664,8 @@ static int onenand_do_lock_cmd(struct mtd_info *mtd, loff_t ofs, size_t len, int
/* Check lock status */
status = this->read_word(this->base + ONENAND_REG_WP_STATUS);
if (!(status & wp_status_mask))
- printk(KERN_ERR "wp status = 0x%x\n", status);
+ printk(KERN_ERR "%s: wp status = 0x%x\n",
+ __func__, status);
return 0;
}
@@ -2435,7 +2694,8 @@ static int onenand_do_lock_cmd(struct mtd_info *mtd, loff_t ofs, size_t len, int
/* Check lock status */
status = this->read_word(this->base + ONENAND_REG_WP_STATUS);
if (!(status & wp_status_mask))
- printk(KERN_ERR "block = %d, wp status = 0x%x\n", block, status);
+ printk(KERN_ERR "%s: block = %d, wp status = 0x%x\n",
+ __func__, block, status);
}
return 0;
@@ -2502,7 +2762,8 @@ static int onenand_check_lock_status(struct onenand_chip *this)
/* Check lock status */
status = this->read_word(this->base + ONENAND_REG_WP_STATUS);
if (!(status & ONENAND_WP_US)) {
- printk(KERN_ERR "block = %d, wp status = 0x%x\n", block, status);
+ printk(KERN_ERR "%s: block = %d, wp status = 0x%x\n",
+ __func__, block, status);
return 0;
}
}
@@ -2557,7 +2818,209 @@ static void onenand_unlock_all(struct mtd_info *mtd)
#ifdef CONFIG_MTD_ONENAND_OTP
-/* Interal OTP operation */
+/**
+ * onenand_otp_command - Send OTP specific command to OneNAND device
+ * @param mtd MTD device structure
+ * @param cmd the command to be sent
+ * @param addr offset to read from or write to
+ * @param len number of bytes to read or write
+ */
+static int onenand_otp_command(struct mtd_info *mtd, int cmd, loff_t addr,
+ size_t len)
+{
+ struct onenand_chip *this = mtd->priv;
+ int value, block, page;
+
+ /* Address translation */
+ switch (cmd) {
+ case ONENAND_CMD_OTP_ACCESS:
+ block = (int) (addr >> this->erase_shift);
+ page = -1;
+ break;
+
+ default:
+ block = (int) (addr >> this->erase_shift);
+ page = (int) (addr >> this->page_shift);
+
+ if (ONENAND_IS_2PLANE(this)) {
+ /* Make the even block number */
+ block &= ~1;
+ /* Is it the odd plane? */
+ if (addr & this->writesize)
+ block++;
+ page >>= 1;
+ }
+ page &= this->page_mask;
+ break;
+ }
+
+ if (block != -1) {
+ /* Write 'DFS, FBA' of Flash */
+ value = onenand_block_address(this, block);
+ this->write_word(value, this->base +
+ ONENAND_REG_START_ADDRESS1);
+ }
+
+ if (page != -1) {
+ /* Now we use page size operation */
+ int sectors = 4, count = 4;
+ int dataram;
+
+ switch (cmd) {
+ default:
+ if (ONENAND_IS_2PLANE(this) && cmd == ONENAND_CMD_PROG)
+ cmd = ONENAND_CMD_2X_PROG;
+ dataram = ONENAND_CURRENT_BUFFERRAM(this);
+ break;
+ }
+
+ /* Write 'FPA, FSA' of Flash */
+ value = onenand_page_address(page, sectors);
+ this->write_word(value, this->base +
+ ONENAND_REG_START_ADDRESS8);
+
+ /* Write 'BSA, BSC' of DataRAM */
+ value = onenand_buffer_address(dataram, sectors, count);
+ this->write_word(value, this->base + ONENAND_REG_START_BUFFER);
+ }
+
+ /* Interrupt clear */
+ this->write_word(ONENAND_INT_CLEAR, this->base + ONENAND_REG_INTERRUPT);
+
+ /* Write command */
+ this->write_word(cmd, this->base + ONENAND_REG_COMMAND);
+
+ return 0;
+}
+
+/**
+ * onenand_otp_write_oob_nolock - [INTERN] OneNAND write out-of-band, specific to OTP
+ * @param mtd MTD device structure
+ * @param to offset to write to
+ * @param len number of bytes to write
+ * @param retlen pointer to variable to store the number of written bytes
+ * @param buf the data to write
+ *
+ * OneNAND write out-of-band only for OTP
+ */
+static int onenand_otp_write_oob_nolock(struct mtd_info *mtd, loff_t to,
+ struct mtd_oob_ops *ops)
+{
+ struct onenand_chip *this = mtd->priv;
+ int column, ret = 0, oobsize;
+ int written = 0;
+ u_char *oobbuf;
+ size_t len = ops->ooblen;
+ const u_char *buf = ops->oobbuf;
+ int block, value, status;
+
+ to += ops->ooboffs;
+
+ /* Initialize retlen, in case of early exit */
+ ops->oobretlen = 0;
+
+ oobsize = mtd->oobsize;
+
+ column = to & (mtd->oobsize - 1);
+
+ oobbuf = this->oob_buf;
+
+ /* Loop until all data write */
+ while (written < len) {
+ int thislen = min_t(int, oobsize, len - written);
+
+ cond_resched();
+
+ block = (int) (to >> this->erase_shift);
+ /*
+ * Write 'DFS, FBA' of Flash
+ * Add: F100h DQ=DFS, FBA
+ */
+
+ value = onenand_block_address(this, block);
+ this->write_word(value, this->base +
+ ONENAND_REG_START_ADDRESS1);
+
+ /*
+ * Select DataRAM for DDP
+ * Add: F101h DQ=DBS
+ */
+
+ value = onenand_bufferram_address(this, block);
+ this->write_word(value, this->base +
+ ONENAND_REG_START_ADDRESS2);
+ ONENAND_SET_NEXT_BUFFERRAM(this);
+
+ /*
+ * Enter OTP access mode
+ */
+ this->command(mtd, ONENAND_CMD_OTP_ACCESS, 0, 0);
+ this->wait(mtd, FL_OTPING);
+
+ /* We send data to spare ram with oobsize
+ * to prevent byte access */
+ memcpy(oobbuf + column, buf, thislen);
+
+ /*
+ * Write Data into DataRAM
+ * Add: 8th Word
+ * in sector0/spare/page0
+ * DQ=XXFCh
+ */
+ this->write_bufferram(mtd, ONENAND_SPARERAM,
+ oobbuf, 0, mtd->oobsize);
+
+ onenand_otp_command(mtd, ONENAND_CMD_PROGOOB, to, mtd->oobsize);
+ onenand_update_bufferram(mtd, to, 0);
+ if (ONENAND_IS_2PLANE(this)) {
+ ONENAND_SET_BUFFERRAM1(this);
+ onenand_update_bufferram(mtd, to + this->writesize, 0);
+ }
+
+ ret = this->wait(mtd, FL_WRITING);
+ if (ret) {
+ printk(KERN_ERR "%s: write failed %d\n", __func__, ret);
+ break;
+ }
+
+ /* Exit OTP access mode */
+ this->command(mtd, ONENAND_CMD_RESET, 0, 0);
+ this->wait(mtd, FL_RESETING);
+
+ status = this->read_word(this->base + ONENAND_REG_CTRL_STATUS);
+ status &= 0x60;
+
+ if (status == 0x60) {
+ printk(KERN_DEBUG "\nBLOCK\tSTATUS\n");
+ printk(KERN_DEBUG "1st Block\tLOCKED\n");
+ printk(KERN_DEBUG "OTP Block\tLOCKED\n");
+ } else if (status == 0x20) {
+ printk(KERN_DEBUG "\nBLOCK\tSTATUS\n");
+ printk(KERN_DEBUG "1st Block\tLOCKED\n");
+ printk(KERN_DEBUG "OTP Block\tUN-LOCKED\n");
+ } else if (status == 0x40) {
+ printk(KERN_DEBUG "\nBLOCK\tSTATUS\n");
+ printk(KERN_DEBUG "1st Block\tUN-LOCKED\n");
+ printk(KERN_DEBUG "OTP Block\tLOCKED\n");
+ } else {
+ printk(KERN_DEBUG "Reboot to check\n");
+ }
+
+ written += thislen;
+ if (written == len)
+ break;
+
+ to += mtd->writesize;
+ buf += thislen;
+ column = 0;
+ }
+
+ ops->oobretlen = written;
+
+ return ret;
+}
+
+/* Internal OTP operation */
typedef int (*otp_op_t)(struct mtd_info *mtd, loff_t form, size_t len,
size_t *retlen, u_char *buf);
@@ -2587,7 +3050,7 @@ static int do_otp_read(struct mtd_info *mtd, loff_t from, size_t len,
this->command(mtd, ONENAND_CMD_OTP_ACCESS, 0, 0);
this->wait(mtd, FL_OTPING);
- ret = ONENAND_IS_MLC(this) ?
+ ret = ONENAND_IS_4KB_PAGE(this) ?
onenand_mlc_read_ops_nolock(mtd, from, &ops) :
onenand_read_ops_nolock(mtd, from, &ops);
@@ -2659,11 +3122,11 @@ static int do_otp_lock(struct mtd_info *mtd, loff_t from, size_t len,
struct mtd_oob_ops ops;
int ret;
- /* Enter OTP access mode */
- this->command(mtd, ONENAND_CMD_OTP_ACCESS, 0, 0);
- this->wait(mtd, FL_OTPING);
-
if (FLEXONENAND(this)) {
+
+ /* Enter OTP access mode */
+ this->command(mtd, ONENAND_CMD_OTP_ACCESS, 0, 0);
+ this->wait(mtd, FL_OTPING);
/*
* For Flex-OneNAND, we write lock mark to 1st word of sector 4 of
* main area of page 49.
@@ -2674,19 +3137,19 @@ static int do_otp_lock(struct mtd_info *mtd, loff_t from, size_t len,
ops.oobbuf = NULL;
ret = onenand_write_ops_nolock(mtd, mtd->writesize * 49, &ops);
*retlen = ops.retlen;
+
+ /* Exit OTP access mode */
+ this->command(mtd, ONENAND_CMD_RESET, 0, 0);
+ this->wait(mtd, FL_RESETING);
} else {
- ops.mode = MTD_OOB_PLACE;
+ ops.mode = MTD_OPS_PLACE_OOB;
ops.ooblen = len;
ops.oobbuf = buf;
ops.ooboffs = 0;
- ret = onenand_write_oob_nolock(mtd, from, &ops);
+ ret = onenand_otp_write_oob_nolock(mtd, from, &ops);
*retlen = ops.oobretlen;
}
- /* Exit OTP access mode */
- this->command(mtd, ONENAND_CMD_RESET, 0, 0);
- this->wait(mtd, FL_RESETING);
-
return ret;
}
@@ -2717,16 +3180,21 @@ static int onenand_otp_walk(struct mtd_info *mtd, loff_t from, size_t len,
if (density < ONENAND_DEVICE_DENSITY_512Mb)
otp_pages = 20;
else
- otp_pages = 10;
+ otp_pages = 50;
if (mode == MTD_OTP_FACTORY) {
from += mtd->writesize * otp_pages;
- otp_pages = 64 - otp_pages;
+ otp_pages = ONENAND_PAGES_PER_BLOCK - otp_pages;
}
/* Check User/Factory boundary */
- if (((mtd->writesize * otp_pages) - (from + len)) < 0)
- return 0;
+ if (mode == MTD_OTP_USER) {
+ if (mtd->writesize * otp_pages < from + len)
+ return 0;
+ } else {
+ if (mtd->writesize * otp_pages < len)
+ return 0;
+ }
onenand_get_device(mtd, FL_OTPING);
while (len > 0 && otp_pages > 0) {
@@ -2749,13 +3217,12 @@ static int onenand_otp_walk(struct mtd_info *mtd, loff_t from, size_t len,
*retlen += sizeof(struct otp_info);
} else {
size_t tmp_retlen;
- int size = len;
ret = action(mtd, from, len, &tmp_retlen, buf);
- buf += size;
- len -= size;
- *retlen += size;
+ buf += tmp_retlen;
+ len -= tmp_retlen;
+ *retlen += tmp_retlen;
if (ret)
break;
@@ -2770,20 +3237,17 @@ static int onenand_otp_walk(struct mtd_info *mtd, loff_t from, size_t len,
/**
* onenand_get_fact_prot_info - [MTD Interface] Read factory OTP info
* @param mtd MTD device structure
- * @param buf the databuffer to put/get data
* @param len number of bytes to read
+ * @param retlen pointer to variable to store the number of read bytes
+ * @param buf the databuffer to put/get data
*
* Read factory OTP info.
*/
-static int onenand_get_fact_prot_info(struct mtd_info *mtd,
- struct otp_info *buf, size_t len)
+static int onenand_get_fact_prot_info(struct mtd_info *mtd, size_t len,
+ size_t *retlen, struct otp_info *buf)
{
- size_t retlen;
- int ret;
-
- ret = onenand_otp_walk(mtd, 0, len, &retlen, (u_char *) buf, NULL, MTD_OTP_FACTORY);
-
- return ret ? : retlen;
+ return onenand_otp_walk(mtd, 0, len, retlen, (u_char *) buf, NULL,
+ MTD_OTP_FACTORY);
}
/**
@@ -2805,20 +3269,17 @@ static int onenand_read_fact_prot_reg(struct mtd_info *mtd, loff_t from,
/**
* onenand_get_user_prot_info - [MTD Interface] Read user OTP info
* @param mtd MTD device structure
- * @param buf the databuffer to put/get data
+ * @param retlen pointer to variable to store the number of read bytes
* @param len number of bytes to read
+ * @param buf the databuffer to put/get data
*
* Read user OTP info.
*/
-static int onenand_get_user_prot_info(struct mtd_info *mtd,
- struct otp_info *buf, size_t len)
+static int onenand_get_user_prot_info(struct mtd_info *mtd, size_t len,
+ size_t *retlen, struct otp_info *buf)
{
- size_t retlen;
- int ret;
-
- ret = onenand_otp_walk(mtd, 0, len, &retlen, (u_char *) buf, NULL, MTD_OTP_USER);
-
- return ret ? : retlen;
+ return onenand_otp_walk(mtd, 0, len, retlen, (u_char *) buf, NULL,
+ MTD_OTP_USER);
}
/**
@@ -2868,21 +3329,11 @@ static int onenand_lock_user_prot_reg(struct mtd_info *mtd, loff_t from,
u_char *buf = FLEXONENAND(this) ? this->page_buf : this->oob_buf;
size_t retlen;
int ret;
+ unsigned int otp_lock_offset = ONENAND_OTP_LOCK_OFFSET;
memset(buf, 0xff, FLEXONENAND(this) ? this->writesize
: mtd->oobsize);
/*
- * Note: OTP lock operation
- * OTP block : 0xXXFC
- * 1st block : 0xXXF3 (If chip support)
- * Both : 0xXXF0 (If chip support)
- */
- if (FLEXONENAND(this))
- buf[FLEXONENAND_OTP_LOCK_OFFSET] = 0xFC;
- else
- buf[ONENAND_OTP_LOCK_OFFSET] = 0xFC;
-
- /*
* Write lock mark to 8th word of sector0 of page0 of the spare0.
* We write 16 bytes spare area instead of 2 bytes.
* For Flex-OneNAND, we write lock mark to 1st word of sector 4 of
@@ -2892,10 +3343,30 @@ static int onenand_lock_user_prot_reg(struct mtd_info *mtd, loff_t from,
from = 0;
len = FLEXONENAND(this) ? mtd->writesize : 16;
+ /*
+ * Note: OTP lock operation
+ * OTP block : 0xXXFC XX 1111 1100
+ * 1st block : 0xXXF3 (If chip support) XX 1111 0011
+ * Both : 0xXXF0 (If chip support) XX 1111 0000
+ */
+ if (FLEXONENAND(this))
+ otp_lock_offset = FLEXONENAND_OTP_LOCK_OFFSET;
+
+ /* ONENAND_OTP_AREA | ONENAND_OTP_BLOCK0 | ONENAND_OTP_AREA_BLOCK0 */
+ if (otp == 1)
+ buf[otp_lock_offset] = 0xFC;
+ else if (otp == 2)
+ buf[otp_lock_offset] = 0xF3;
+ else if (otp == 3)
+ buf[otp_lock_offset] = 0xF0;
+ else if (otp != 0)
+ printk(KERN_DEBUG "[OneNAND] Invalid option selected for OTP\n");
+
ret = onenand_otp_walk(mtd, from, len, &retlen, buf, do_otp_lock, MTD_OTP_USER);
return ret ? : retlen;
}
+
#endif /* CONFIG_MTD_ONENAND_OTP */
/**
@@ -2909,19 +3380,38 @@ static int onenand_lock_user_prot_reg(struct mtd_info *mtd, loff_t from,
static void onenand_check_features(struct mtd_info *mtd)
{
struct onenand_chip *this = mtd->priv;
- unsigned int density, process;
+ unsigned int density, process, numbufs;
/* Lock scheme depends on density and process */
density = onenand_get_density(this->device_id);
process = this->version_id >> ONENAND_VERSION_PROCESS_SHIFT;
+ numbufs = this->read_word(this->base + ONENAND_REG_NUM_BUFFERS) >> 8;
/* Lock scheme */
switch (density) {
case ONENAND_DEVICE_DENSITY_4Gb:
- this->options |= ONENAND_HAS_2PLANE;
+ if (ONENAND_IS_DDP(this))
+ this->options |= ONENAND_HAS_2PLANE;
+ else if (numbufs == 1) {
+ this->options |= ONENAND_HAS_4KB_PAGE;
+ this->options |= ONENAND_HAS_CACHE_PROGRAM;
+ /*
+ * There are two different 4KiB pagesize chips
+ * and no way to detect it by H/W config values.
+ *
+ * To detect the correct NOP for each chips,
+ * It should check the version ID as workaround.
+ *
+ * Now it has as following
+ * KFM4G16Q4M has NOP 4 with version ID 0x0131
+ * KFM4G16Q5M has NOP 1 with versoin ID 0x013e
+ */
+ if ((this->version_id & 0xf) == 0xe)
+ this->options |= ONENAND_HAS_NOP_1;
+ }
case ONENAND_DEVICE_DENSITY_2Gb:
- /* 2Gb DDP don't have 2 plane */
+ /* 2Gb DDP does not have 2 plane */
if (!ONENAND_IS_DDP(this))
this->options |= ONENAND_HAS_2PLANE;
this->options |= ONENAND_HAS_UNLOCK_ALL;
@@ -2939,7 +3429,11 @@ static void onenand_check_features(struct mtd_info *mtd)
break;
}
+ /* The MLC has 4KiB pagesize. */
if (ONENAND_IS_MLC(this))
+ this->options |= ONENAND_HAS_4KB_PAGE;
+
+ if (ONENAND_IS_4KB_PAGE(this))
this->options &= ~ONENAND_HAS_2PLANE;
if (FLEXONENAND(this)) {
@@ -2953,6 +3447,10 @@ static void onenand_check_features(struct mtd_info *mtd)
printk(KERN_DEBUG "Chip support all block unlock\n");
if (this->options & ONENAND_HAS_2PLANE)
printk(KERN_DEBUG "Chip has 2 plane\n");
+ if (this->options & ONENAND_HAS_4KB_PAGE)
+ printk(KERN_DEBUG "Chip has 4KiB pagesize\n");
+ if (this->options & ONENAND_HAS_CACHE_PROGRAM)
+ printk(KERN_DEBUG "Chip has cache program feature\n");
}
/**
@@ -3020,7 +3518,7 @@ static int flexonenand_get_boundary(struct mtd_info *mtd)
{
struct onenand_chip *this = mtd->priv;
unsigned die, bdry;
- int ret, syscfg, locked;
+ int syscfg, locked;
/* Disable ECC */
syscfg = this->read_word(this->base + ONENAND_REG_SYS_CFG1);
@@ -3031,7 +3529,7 @@ static int flexonenand_get_boundary(struct mtd_info *mtd)
this->wait(mtd, FL_SYNCING);
this->command(mtd, FLEXONENAND_CMD_READ_PI, die, 0);
- ret = this->wait(mtd, FL_READING);
+ this->wait(mtd, FL_READING);
bdry = this->read_word(this->base + ONENAND_DATARAM);
if ((bdry >> FLEXONENAND_PI_UNLOCK_SHIFT) == 3)
@@ -3041,7 +3539,7 @@ static int flexonenand_get_boundary(struct mtd_info *mtd)
this->boundary[die] = bdry & FLEXONENAND_PI_MASK;
this->command(mtd, ONENAND_CMD_RESET, 0, 0);
- ret = this->wait(mtd, FL_RESETING);
+ this->wait(mtd, FL_RESETING);
printk(KERN_INFO "Die %d boundary: %d%s\n", die,
this->boundary[die], locked ? "(Locked)" : "(Unlocked)");
@@ -3144,7 +3642,7 @@ static int flexonenand_check_blocks_erased(struct mtd_info *mtd, int start, int
int i, ret;
int block;
struct mtd_oob_ops ops = {
- .mode = MTD_OOB_PLACE,
+ .mode = MTD_OPS_PLACE_OOB,
.ooboffs = 0,
.ooblen = mtd->oobsize,
.datbuf = NULL,
@@ -3172,7 +3670,8 @@ static int flexonenand_check_blocks_erased(struct mtd_info *mtd, int start, int
break;
if (i != mtd->oobsize) {
- printk(KERN_WARNING "Block %d not erased.\n", block);
+ printk(KERN_WARNING "%s: Block %d not erased.\n",
+ __func__, block);
return 1;
}
}
@@ -3184,7 +3683,7 @@ static int flexonenand_check_blocks_erased(struct mtd_info *mtd, int start, int
* flexonenand_set_boundary - Writes the SLC boundary
* @param mtd - mtd info structure
*/
-int flexonenand_set_boundary(struct mtd_info *mtd, int die,
+static int flexonenand_set_boundary(struct mtd_info *mtd, int die,
int boundary, int lock)
{
struct onenand_chip *this = mtd->priv;
@@ -3204,8 +3703,8 @@ int flexonenand_set_boundary(struct mtd_info *mtd, int die,
blksperdie >>= ONENAND_IS_DDP(this) ? 1 : 0;
if (boundary >= blksperdie) {
- printk(KERN_ERR "flexonenand_set_boundary: Invalid boundary value. "
- "Boundary not changed.\n");
+ printk(KERN_ERR "%s: Invalid boundary value. "
+ "Boundary not changed.\n", __func__);
return -EINVAL;
}
@@ -3214,7 +3713,8 @@ int flexonenand_set_boundary(struct mtd_info *mtd, int die,
new = boundary + (die * this->density_mask);
ret = flexonenand_check_blocks_erased(mtd, min(old, new) + 1, max(old, new));
if (ret) {
- printk(KERN_ERR "flexonenand_set_boundary: Please erase blocks before boundary change\n");
+ printk(KERN_ERR "%s: Please erase blocks "
+ "before boundary change\n", __func__);
return ret;
}
@@ -3223,16 +3723,16 @@ int flexonenand_set_boundary(struct mtd_info *mtd, int die,
/* Check is boundary is locked */
this->command(mtd, FLEXONENAND_CMD_READ_PI, die, 0);
- ret = this->wait(mtd, FL_READING);
+ this->wait(mtd, FL_READING);
thisboundary = this->read_word(this->base + ONENAND_DATARAM);
if ((thisboundary >> FLEXONENAND_PI_UNLOCK_SHIFT) != 3) {
- printk(KERN_ERR "flexonenand_set_boundary: boundary locked\n");
+ printk(KERN_ERR "%s: boundary locked\n", __func__);
ret = 1;
goto out;
}
- printk(KERN_INFO "flexonenand_set_boundary: Changing die %d boundary: %d%s\n",
+ printk(KERN_INFO "Changing die %d boundary: %d%s\n",
die, boundary, lock ? "(Locked)" : "(Unlocked)");
addr = die ? this->diesize[0] : 0;
@@ -3243,7 +3743,8 @@ int flexonenand_set_boundary(struct mtd_info *mtd, int die,
this->command(mtd, ONENAND_CMD_ERASE, addr, 0);
ret = this->wait(mtd, FL_ERASING);
if (ret) {
- printk(KERN_ERR "flexonenand_set_boundary: Failed PI erase for Die %d\n", die);
+ printk(KERN_ERR "%s: Failed PI erase for Die %d\n",
+ __func__, die);
goto out;
}
@@ -3251,7 +3752,8 @@ int flexonenand_set_boundary(struct mtd_info *mtd, int die,
this->command(mtd, ONENAND_CMD_PROG, addr, 0);
ret = this->wait(mtd, FL_WRITING);
if (ret) {
- printk(KERN_ERR "flexonenand_set_boundary: Failed PI write for Die %d\n", die);
+ printk(KERN_ERR "%s: Failed PI write for Die %d\n",
+ __func__, die);
goto out;
}
@@ -3268,17 +3770,16 @@ out:
}
/**
- * onenand_probe - [OneNAND Interface] Probe the OneNAND device
+ * onenand_chip_probe - [OneNAND Interface] The generic chip probe
* @param mtd MTD device structure
*
* OneNAND detection method:
* Compare the values from command with ones from register
*/
-static int onenand_probe(struct mtd_info *mtd)
+static int onenand_chip_probe(struct mtd_info *mtd)
{
struct onenand_chip *this = mtd->priv;
- int bram_maf_id, bram_dev_id, maf_id, dev_id, ver_id;
- int density;
+ int bram_maf_id, bram_dev_id, maf_id, dev_id;
int syscfg;
/* Save system configuration 1 */
@@ -3308,18 +3809,42 @@ static int onenand_probe(struct mtd_info *mtd)
/* Read manufacturer and device IDs from Register */
maf_id = this->read_word(this->base + ONENAND_REG_MANUFACTURER_ID);
dev_id = this->read_word(this->base + ONENAND_REG_DEVICE_ID);
- ver_id = this->read_word(this->base + ONENAND_REG_VERSION_ID);
- this->technology = this->read_word(this->base + ONENAND_REG_TECHNOLOGY);
/* Check OneNAND device */
if (maf_id != bram_maf_id || dev_id != bram_dev_id)
return -ENXIO;
+ return 0;
+}
+
+/**
+ * onenand_probe - [OneNAND Interface] Probe the OneNAND device
+ * @param mtd MTD device structure
+ */
+static int onenand_probe(struct mtd_info *mtd)
+{
+ struct onenand_chip *this = mtd->priv;
+ int dev_id, ver_id;
+ int density;
+ int ret;
+
+ ret = this->chip_probe(mtd);
+ if (ret)
+ return ret;
+
+ /* Device and version IDs from Register */
+ dev_id = this->read_word(this->base + ONENAND_REG_DEVICE_ID);
+ ver_id = this->read_word(this->base + ONENAND_REG_VERSION_ID);
+ this->technology = this->read_word(this->base + ONENAND_REG_TECHNOLOGY);
+
/* Flash device information */
onenand_print_device_info(dev_id, ver_id);
this->device_id = dev_id;
this->version_id = ver_id;
+ /* Check OneNAND features */
+ onenand_check_features(mtd);
+
density = onenand_get_density(dev_id);
if (FLEXONENAND(this)) {
this->dies = ONENAND_IS_DDP(this) ? 2 : 1;
@@ -3341,7 +3866,7 @@ static int onenand_probe(struct mtd_info *mtd)
/* The data buffer size is equal to page size */
mtd->writesize = this->read_word(this->base + ONENAND_REG_DATA_BUFFER_SIZE);
/* We use the full BufferRAM */
- if (ONENAND_IS_MLC(this))
+ if (ONENAND_IS_4KB_PAGE(this))
mtd->writesize <<= 1;
mtd->oobsize = mtd->writesize >> 5;
@@ -3364,16 +3889,13 @@ static int onenand_probe(struct mtd_info *mtd)
/* It's real page size */
this->writesize = mtd->writesize;
- /* REVIST: Multichip handling */
+ /* REVISIT: Multichip handling */
if (FLEXONENAND(this))
flexonenand_get_size(mtd);
else
mtd->size = this->chipsize;
- /* Check OneNAND features */
- onenand_check_features(mtd);
-
/*
* We emulate the 4KiB page and 256KiB erase block size
* But oobsize is still 64 bytes.
@@ -3408,8 +3930,8 @@ static void onenand_resume(struct mtd_info *mtd)
if (this->state == FL_PM_SUSPENDED)
onenand_release_device(mtd);
else
- printk(KERN_ERR "resume() called for the chip which is not"
- "in suspended state\n");
+ printk(KERN_ERR "%s: resume() called for the chip which is not "
+ "in suspended state\n", __func__);
}
/**
@@ -3441,6 +3963,9 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
if (!this->unlock_all)
this->unlock_all = onenand_unlock_all;
+ if (!this->chip_probe)
+ this->chip_probe = onenand_chip_probe;
+
if (!this->read_bufferram)
this->read_bufferram = onenand_read_bufferram;
if (!this->write_bufferram)
@@ -3463,16 +3988,20 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
/* Allocate buffers, if necessary */
if (!this->page_buf) {
this->page_buf = kzalloc(mtd->writesize, GFP_KERNEL);
- if (!this->page_buf) {
- printk(KERN_ERR "onenand_scan(): Can't allocate page_buf\n");
+ if (!this->page_buf)
+ return -ENOMEM;
+#ifdef CONFIG_MTD_ONENAND_VERIFY_WRITE
+ this->verify_buf = kzalloc(mtd->writesize, GFP_KERNEL);
+ if (!this->verify_buf) {
+ kfree(this->page_buf);
return -ENOMEM;
}
+#endif
this->options |= ONENAND_PAGEBUF_ALLOC;
}
if (!this->oob_buf) {
this->oob_buf = kzalloc(mtd->oobsize, GFP_KERNEL);
if (!this->oob_buf) {
- printk(KERN_ERR "onenand_scan(): Can't allocate oob_buf\n");
if (this->options & ONENAND_PAGEBUF_ALLOC) {
this->options &= ~ONENAND_PAGEBUF_ALLOC;
kfree(this->page_buf);
@@ -3491,8 +4020,15 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
*/
switch (mtd->oobsize) {
case 128:
- this->ecclayout = &onenand_oob_128;
- mtd->subpage_sft = 0;
+ if (FLEXONENAND(this)) {
+ this->ecclayout = &flexonenand_oob_128;
+ mtd->subpage_sft = 0;
+ } else {
+ this->ecclayout = &onenand_oob_128;
+ mtd->subpage_sft = 2;
+ }
+ if (ONENAND_IS_NOP_1(this))
+ mtd->subpage_sft = 0;
break;
case 64:
this->ecclayout = &onenand_oob_64;
@@ -3505,8 +4041,8 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
break;
default:
- printk(KERN_WARNING "No OOB scheme defined for oobsize %d\n",
- mtd->oobsize);
+ printk(KERN_WARNING "%s: No OOB scheme defined for oobsize %d\n",
+ __func__, mtd->oobsize);
mtd->subpage_sft = 0;
/* To prevent kernel oops */
this->ecclayout = &onenand_oob_32;
@@ -3527,37 +4063,40 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
mtd->oobavail = this->ecclayout->oobavail;
mtd->ecclayout = this->ecclayout;
+ mtd->ecc_strength = 1;
/* Fill in remaining MTD driver data */
- mtd->type = MTD_NANDFLASH;
+ mtd->type = ONENAND_IS_MLC(this) ? MTD_MLCNANDFLASH : MTD_NANDFLASH;
mtd->flags = MTD_CAP_NANDFLASH;
- mtd->erase = onenand_erase;
- mtd->point = NULL;
- mtd->unpoint = NULL;
- mtd->read = onenand_read;
- mtd->write = onenand_write;
- mtd->read_oob = onenand_read_oob;
- mtd->write_oob = onenand_write_oob;
- mtd->panic_write = onenand_panic_write;
+ mtd->_erase = onenand_erase;
+ mtd->_point = NULL;
+ mtd->_unpoint = NULL;
+ mtd->_read = onenand_read;
+ mtd->_write = onenand_write;
+ mtd->_read_oob = onenand_read_oob;
+ mtd->_write_oob = onenand_write_oob;
+ mtd->_panic_write = onenand_panic_write;
#ifdef CONFIG_MTD_ONENAND_OTP
- mtd->get_fact_prot_info = onenand_get_fact_prot_info;
- mtd->read_fact_prot_reg = onenand_read_fact_prot_reg;
- mtd->get_user_prot_info = onenand_get_user_prot_info;
- mtd->read_user_prot_reg = onenand_read_user_prot_reg;
- mtd->write_user_prot_reg = onenand_write_user_prot_reg;
- mtd->lock_user_prot_reg = onenand_lock_user_prot_reg;
+ mtd->_get_fact_prot_info = onenand_get_fact_prot_info;
+ mtd->_read_fact_prot_reg = onenand_read_fact_prot_reg;
+ mtd->_get_user_prot_info = onenand_get_user_prot_info;
+ mtd->_read_user_prot_reg = onenand_read_user_prot_reg;
+ mtd->_write_user_prot_reg = onenand_write_user_prot_reg;
+ mtd->_lock_user_prot_reg = onenand_lock_user_prot_reg;
#endif
- mtd->sync = onenand_sync;
- mtd->lock = onenand_lock;
- mtd->unlock = onenand_unlock;
- mtd->suspend = onenand_suspend;
- mtd->resume = onenand_resume;
- mtd->block_isbad = onenand_block_isbad;
- mtd->block_markbad = onenand_block_markbad;
+ mtd->_sync = onenand_sync;
+ mtd->_lock = onenand_lock;
+ mtd->_unlock = onenand_unlock;
+ mtd->_suspend = onenand_suspend;
+ mtd->_resume = onenand_resume;
+ mtd->_block_isbad = onenand_block_isbad;
+ mtd->_block_markbad = onenand_block_markbad;
mtd->owner = THIS_MODULE;
+ mtd->writebufsize = mtd->writesize;
/* Unlock whole block */
- this->unlock_all(mtd);
+ if (!(this->options & ONENAND_SKIP_INITIAL_UNLOCKING))
+ this->unlock_all(mtd);
ret = this->scan_bbt(mtd);
if ((!FLEXONENAND(this)) || ret)
@@ -3579,12 +4118,8 @@ void onenand_release(struct mtd_info *mtd)
{
struct onenand_chip *this = mtd->priv;
-#ifdef CONFIG_MTD_PARTITIONS
/* Deregister partitions */
- del_mtd_partitions (mtd);
-#endif
- /* Deregister the device */
- del_mtd_device (mtd);
+ mtd_device_unregister(mtd);
/* Free bad block table memory, if allocated */
if (this->bbm) {
@@ -3593,8 +4128,12 @@ void onenand_release(struct mtd_info *mtd)
kfree(this->bbm);
}
/* Buffers allocated by onenand_scan */
- if (this->options & ONENAND_PAGEBUF_ALLOC)
+ if (this->options & ONENAND_PAGEBUF_ALLOC) {
kfree(this->page_buf);
+#ifdef CONFIG_MTD_ONENAND_VERIFY_WRITE
+ kfree(this->verify_buf);
+#endif
+ }
if (this->options & ONENAND_OOBBUF_ALLOC)
kfree(this->oob_buf);
kfree(mtd->eraseregions);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-21 03:35:15 +0000