*/
#include <common.h>
-#include <linux/mtd/compat.h>
+#include <log.h>
+#include <watchdog.h>
+#include <dm/devres.h>
+#include <linux/bitops.h>
+#include <linux/compat.h>
#include <linux/mtd/mtd.h>
+#include "linux/mtd/flashchip.h"
#include <linux/mtd/onenand.h>
#include <asm/io.h>
-#include <asm/errno.h>
+#include <linux/errno.h>
#include <malloc.h>
/* It should access 16-bit instead of 8-bit */
.oobfree = { {2, 3}, {14, 2}, {18, 3}, {30, 2} }
};
-static const unsigned char ffchars[] = {
+/*
+ * Warning! This array is used with the memcpy_16() function, thus
+ * it must be aligned to 2 bytes. GCC can make this array unaligned
+ * as the array is made of unsigned char, which memcpy16() doesn't
+ * like and will cause unaligned access.
+ */
+static const unsigned char __aligned(2) ffchars[] = {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 16 */
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
this->write_word(value,
this->base + ONENAND_REG_START_ADDRESS2);
- if (ONENAND_IS_MLC(this))
+ if (ONENAND_IS_4KB_PAGE(this))
ONENAND_SET_BUFFERRAM0(this);
else
/* Switch to the next data buffer */
case FLEXONENAND_CMD_RECOVER_LSB:
case ONENAND_CMD_READ:
case ONENAND_CMD_READOOB:
- if (ONENAND_IS_MLC(this))
+ if (ONENAND_IS_4KB_PAGE(this))
dataram = ONENAND_SET_BUFFERRAM0(this);
else
dataram = ONENAND_SET_NEXT_BUFFERRAM(this);
static int onenand_wait(struct mtd_info *mtd, int state)
{
struct onenand_chip *this = mtd->priv;
- unsigned int flags = ONENAND_INT_MASTER;
unsigned int interrupt = 0;
unsigned int ctrl;
- while (1) {
+ /* Wait at most 20ms ... */
+ u32 timeo = (CONFIG_SYS_HZ * 20) / 1000;
+ u32 time_start = get_timer(0);
+ do {
+ WATCHDOG_RESET();
+ if (get_timer(time_start) > timeo)
+ return -EIO;
interrupt = this->read_word(this->base + ONENAND_REG_INTERRUPT);
- if (interrupt & flags)
- break;
- }
+ } while ((interrupt & ONENAND_INT_MASTER) == 0);
ctrl = this->read_word(this->base + ONENAND_REG_CTRL_STATUS);
int blockpage, found = 0;
unsigned int i;
-#ifdef CONFIG_S3C64XX
- return 0;
-#endif
-
if (ONENAND_IS_2PLANE(this))
blockpage = onenand_get_2x_blockpage(mtd, addr);
else
}
/**
- * 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
uint8_t *oob_buf = this->oob_buf;
free = this->ecclayout->oobfree;
- for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES && free->length; i++, free++) {
+ for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES_LARGE && free->length;
+ i++, free++) {
if (readcol >= lastgap)
readcol += free->offset - lastgap;
if (readend >= lastgap)
}
this->read_bufferram(mtd, 0, ONENAND_SPARERAM, oob_buf, 0, mtd->oobsize);
free = this->ecclayout->oobfree;
- for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES && free->length; i++, free++) {
+ for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES_LARGE && free->length;
+ i++, free++) {
int free_end = free->offset + free->length;
if (free->offset < readend && free_end > readcol) {
int st = max_t(int,free->offset,readcol);
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 */
int ret = 0, boundary = 0;
int writesize = this->writesize;
- MTDDEBUG(MTD_DEBUG_LEVEL3, "onenand_read_ops_nolock: from = 0x%08x, len = %i\n", (unsigned int) from, (int) len);
+ pr_debug("onenand_read_ops_nolock: from = 0x%08x, len = %i\n",
+ (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;
while (!ret) {
/* If there is more to load then start next load */
from += thislen;
- if (!ONENAND_IS_MLC(this) && read + thislen < len) {
+ if (!ONENAND_IS_4KB_PAGE(this) && read + thislen < len) {
this->main_buf = buf + thislen;
this->command(mtd, ONENAND_CMD_READ, from, writesize);
/*
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, 0, ONENAND_SPARERAM, oobbuf, oobcolumn, thisooblen);
oobcolumn = 0;
}
- if (ONENAND_IS_MLC(this) && (read + thislen < len)) {
+ if (ONENAND_IS_4KB_PAGE(this) && (read + thislen < len)) {
this->command(mtd, ONENAND_CMD_READ, from, writesize);
ret = this->wait(mtd, FL_READING);
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;
}
/* Set up for next read from bufferRAM */
if (unlikely(boundary))
this->write_word(ONENAND_DDP_CHIP1, this->base + ONENAND_REG_START_ADDRESS2);
- if (!ONENAND_IS_MLC(this))
+ if (!ONENAND_IS_4KB_PAGE(this))
ONENAND_SET_NEXT_BUFFERRAM(this);
buf += thislen;
thislen = min_t(int, writesize, len - read);
column = 0;
- if (!ONENAND_IS_MLC(this)) {
+ if (!ONENAND_IS_4KB_PAGE(this)) {
/* 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;
}
}
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;
}
/**
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;
- MTDDEBUG(MTD_DEBUG_LEVEL3, "onenand_read_oob_nolock: from = 0x%08x, len = %i\n", (unsigned int) from, (int) len);
+ pr_debug("onenand_read_oob_nolock: from = 0x%08x, len = %i\n",
+ (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;
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) {
thislen = oobsize - column;
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, 0, ONENAND_SPARERAM, buf, column, thislen);
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;
static int onenand_bbt_wait(struct mtd_info *mtd, int state)
{
struct onenand_chip *this = mtd->priv;
- unsigned int flags = ONENAND_INT_MASTER;
unsigned int interrupt;
unsigned int ctrl;
- while (1) {
+ /* Wait at most 20ms ... */
+ u32 timeo = (CONFIG_SYS_HZ * 20) / 1000;
+ u32 time_start = get_timer(0);
+ do {
+ WATCHDOG_RESET();
+ if (get_timer(time_start) > timeo)
+ return ONENAND_BBT_READ_FATAL_ERROR;
interrupt = this->read_word(this->base + ONENAND_REG_INTERRUPT);
- if (interrupt & flags)
- break;
- }
+ } while ((interrupt & ONENAND_INT_MASTER) == 0);
/* To get correct interrupt status in timeout case */
interrupt = this->read_word(this->base + ONENAND_REG_INTERRUPT);
size_t len = ops->ooblen;
u_char *buf = ops->oobbuf;
- MTDDEBUG(MTD_DEBUG_LEVEL3, "onenand_bbt_read_oob: from = 0x%08x, len = %zi\n", (unsigned int) from, len);
+ pr_debug("onenand_bbt_read_oob: from = 0x%08x, len = %zi\n",
+ (unsigned int) from, len);
- readcmd = ONENAND_IS_MLC(this) ? ONENAND_CMD_READ : ONENAND_CMD_READOOB;
+ readcmd = ONENAND_IS_4KB_PAGE(this) ?
+ ONENAND_CMD_READ : ONENAND_CMD_READOOB;
/* Initialize return value */
ops->oobretlen = 0;
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);
#define NOTALIGNED(x) ((x & (this->subpagesize - 1)) != 0)
/**
- * 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
unsigned int i;
free = this->ecclayout->oobfree;
- for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES && free->length; i++, free++) {
+ for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES_LARGE && free->length;
+ i++, free++) {
if (writecol >= lastgap)
writecol += free->offset - lastgap;
if (writeend >= lastgap)
lastgap = free->offset + free->length;
}
free = this->ecclayout->oobfree;
- for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES && free->length; i++, free++) {
+ for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES_LARGE && free->length;
+ i++, free++) {
int free_end = free->offset + free->length;
if (free->offset < writeend && free_end > writecol) {
int st = max_t(int,free->offset,writecol);
u_char *oobbuf;
int ret = 0;
- MTDDEBUG(MTD_DEBUG_LEVEL3, "onenand_write_ops_nolock: to = 0x%08x, len = %i\n", (unsigned int) to, (int) len);
+ pr_debug("onenand_write_ops_nolock: to = 0x%08x, len = %i\n",
+ (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");
return -EINVAL;
}
- if (ops->mode == MTD_OOB_AUTO)
+ if (ops->mode == MTD_OPS_AUTO_OOB)
oobsize = this->ecclayout->oobavail;
else
oobsize = mtd->oobsize;
/* 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);
}
/**
- * 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
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;
- MTDDEBUG(MTD_DEBUG_LEVEL3, "onenand_write_oob_nolock: to = 0x%08x, len = %i\n", (unsigned int) to, (int) len);
+ pr_debug("onenand_write_oob_nolock: to = 0x%08x, len = %i\n",
+ (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;
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) {
/* 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, 0, 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, 0, ONENAND_DATARAM,
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;
struct mtd_erase_region_info *region = NULL;
unsigned int region_end = 0;
- MTDDEBUG(MTD_DEBUG_LEVEL3, "onenand_erase: start = 0x%08x, len = %i\n",
+ pr_debug("onenand_erase: start = 0x%08x, len = %i\n",
(unsigned int) addr, len);
- /* Do not allow erase past end of device */
- if (unlikely((len + addr) > mtd->size)) {
- MTDDEBUG(MTD_DEBUG_LEVEL0, "onenand_erase:"
- "Erase past end of device\n");
- return -EINVAL;
- }
-
if (FLEXONENAND(this)) {
/* Find the eraseregion of this address */
i = flexonenand_region(mtd, addr);
* Erase region's start offset is always block start address.
*/
if (unlikely((addr - region->offset) & (block_size - 1))) {
- MTDDEBUG(MTD_DEBUG_LEVEL0, "onenand_erase:"
- " Unaligned address\n");
+ pr_debug("onenand_erase:" " Unaligned address\n");
return -EINVAL;
}
} else {
/* Start address must align on block boundary */
if (unlikely(addr & (block_size - 1))) {
- MTDDEBUG(MTD_DEBUG_LEVEL0, "onenand_erase:"
- "Unaligned address\n");
+ pr_debug("onenand_erase:" "Unaligned address\n");
return -EINVAL;
}
}
/* Length must align on block boundary */
if (unlikely(len & (block_size - 1))) {
- MTDDEBUG (MTD_DEBUG_LEVEL0,
- "onenand_erase: Length not block aligned\n");
+ pr_debug("onenand_erase: Length not block aligned\n");
return -EINVAL;
}
- instr->fail_addr = 0xffffffff;
-
/* Grab the lock and see if the device is available */
onenand_get_device(mtd, FL_ERASING);
/* Check, if it is write protected */
if (ret) {
if (ret == -EPERM)
- MTDDEBUG (MTD_DEBUG_LEVEL0, "onenand_erase: "
- "Device is write protected!!!\n");
+ pr_debug("onenand_erase: "
+ "Device is write protected!!!\n");
else
- MTDDEBUG (MTD_DEBUG_LEVEL0, "onenand_erase: "
- "Failed erase, block %d\n",
- onenand_block(this, addr));
+ pr_debug("onenand_erase: "
+ "Failed erase, block %d\n",
+ onenand_block(this, addr));
instr->state = MTD_ERASE_FAILED;
instr->fail_addr = addr;
*/
void onenand_sync(struct mtd_info *mtd)
{
- MTDDEBUG (MTD_DEBUG_LEVEL3, "onenand_sync: called\n");
+ pr_debug("onenand_sync: called\n");
/* Grab the lock and see if the device is available */
onenand_get_device(mtd, FL_SYNCING);
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,
return ret;
}
+ onenand_get_device(mtd, FL_WRITING);
ret = this->block_markbad(mtd, ofs);
+ onenand_release_device(mtd);
+
return ret;
}
{
struct onenand_chip *this = mtd->priv;
int start, end, block, value, status;
- int wp_status_mask;
start = onenand_block(this, ofs);
end = onenand_block(this, ofs + len);
- if (cmd == ONENAND_CMD_LOCK)
- wp_status_mask = ONENAND_WP_LS;
- else
- wp_status_mask = ONENAND_WP_US;
-
/* Continuous lock scheme */
if (this->options & ONENAND_HAS_CONT_LOCK) {
/* Set start block address */
/* 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
+ this->options |= ONENAND_HAS_4KB_PAGE;
case ONENAND_DEVICE_DENSITY_2Gb:
/* 2Gb DDP don't have 2 plane */
}
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)) {
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");
+
}
/**
static int onenand_check_maf(int manuf)
{
int size = ARRAY_SIZE(onenand_manuf_ids);
- char *name;
int i;
+#ifdef ONENAND_DEBUG
+ char *name;
+#endif
for (i = 0; i < size; i++)
if (manuf == onenand_manuf_ids[i].id)
break;
+#ifdef ONENAND_DEBUG
if (i < size)
name = onenand_manuf_ids[i].name;
else
name = "Unknown";
-#ifdef ONENAND_DEBUG
printk(KERN_DEBUG "OneNAND Manufacturer: %s (0x%0x)\n", name, manuf);
#endif
{
struct onenand_chip *this = mtd->priv;
unsigned int die, bdry;
- int ret, syscfg, locked;
+ int syscfg, locked;
/* Disable ECC */
syscfg = this->read_word(this->base + ONENAND_REG_SYS_CFG1);
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)
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)");
/**
* flexonenand_get_size - Fill up fields in onenand_chip and mtd_info
- * boundary[], diesize[], mtd->size, mtd->erasesize,
- * mtd->eraseregions
+ * boundary[], diesize[], mtd->size, mtd->erasesize,
+ * mtd->eraseregions
* @param mtd - MTD device structure
*/
static void flexonenand_get_size(struct mtd_info *mtd)
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,
}
/**
- * onenand_probe - [OneNAND Interface] Probe the OneNAND device
+ * onenand_chip_probe - [OneNAND Interface] Probe the OneNAND chip
* @param mtd MTD device structure
*
* OneNAND detection method:
* Compare the 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 */
syscfg = this->read_word(this->base + ONENAND_REG_SYS_CFG1);
+
/* Clear Sync. Burst Read mode to read BootRAM */
- this->write_word((syscfg & ~ONENAND_SYS_CFG1_SYNC_READ), this->base + ONENAND_REG_SYS_CFG1);
+ this->write_word((syscfg & ~ONENAND_SYS_CFG1_SYNC_READ),
+ this->base + ONENAND_REG_SYS_CFG1);
/* Send the command for reading device ID from BootRAM */
this->write_word(ONENAND_CMD_READID, this->base + ONENAND_BOOTRAM);
this->write_word(ONENAND_CMD_RESET, this->base + ONENAND_BOOTRAM);
/* Wait reset */
- this->wait(mtd, FL_RESETING);
+ if (this->wait(mtd, FL_RESETING))
+ return -ENXIO;
/* Restore system configuration 1 */
this->write_word(syscfg, this->base + ONENAND_REG_SYS_CFG1);
/* 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
+ *
+ * OneNAND detection method:
+ * Compare the the values from command with ones from register
+ */
+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;
+
+ /* Read device 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 */
mtd->name = 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;
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;
else
mtd->size = this->chipsize;
- /* Check OneNAND features */
- onenand_check_features(mtd);
-
+ mtd->type = ONENAND_IS_MLC(this) ? MTD_MLCNANDFLASH : MTD_NANDFLASH;
mtd->flags = MTD_CAP_NANDFLASH;
- mtd->erase = onenand_erase;
- mtd->read = onenand_read;
- mtd->write = onenand_write;
- mtd->read_oob = onenand_read_oob;
- mtd->write_oob = onenand_write_oob;
- mtd->sync = onenand_sync;
- mtd->block_isbad = onenand_block_isbad;
- mtd->block_markbad = onenand_block_markbad;
+ mtd->_erase = onenand_erase;
+ mtd->_read_oob = onenand_read_oob;
+ mtd->_write_oob = onenand_write_oob;
+ mtd->_sync = onenand_sync;
+ mtd->_block_isbad = onenand_block_isbad;
+ mtd->_block_markbad = onenand_block_markbad;
+ mtd->writebufsize = mtd->writesize;
return 0;
}
if (!this->write_bufferram)
this->write_bufferram = onenand_write_bufferram;
+ if (!this->chip_probe)
+ this->chip_probe = onenand_chip_probe;
+
if (!this->block_markbad)
this->block_markbad = onenand_default_block_markbad;
if (!this->scan_bbt)
* the out of band area
*/
this->ecclayout->oobavail = 0;
- for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES &&
+
+ for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES_LARGE &&
this->ecclayout->oobfree[i].length; i++)
this->ecclayout->oobavail +=
this->ecclayout->oobfree[i].length;
projects / platform / kernel / u-boot.git / blobdiff