*/
#include <common.h>
-#include <linux/mtd/compat.h>
+#include <linux/compat.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/onenand.h>
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);
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);
/*
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))
/* 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);
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;
MTDDEBUG(MTD_DEBUG_LEVEL3, "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);
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) {
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,
{
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)");
}
/**
- * 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);
/* 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->flags = MTD_CAP_NANDFLASH;
mtd->erase = onenand_erase;
mtd->read = onenand_read;
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)
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