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authorKevin2014-11-15 10:00:36 +0800
committerKevin2014-11-15 10:00:36 +0800
commit9d40ac5867b9aefe0722bc1f110b965ff294d30d (patch)
treede942df665fac4bac0d9cb7ae86910fe937b0c1a /ANDROID_3.4.5/drivers/mtd/nand/nand_bbt.c
parent392e8802486cb573b916e746010e141a75f507e6 (diff)
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add via modify part source code for wm8880 4.4 kitkat
Diffstat (limited to 'ANDROID_3.4.5/drivers/mtd/nand/nand_bbt.c')
-rw-r--r--ANDROID_3.4.5/drivers/mtd/nand/nand_bbt.c1496
1 files changed, 1404 insertions, 92 deletions
diff --git a/ANDROID_3.4.5/drivers/mtd/nand/nand_bbt.c b/ANDROID_3.4.5/drivers/mtd/nand/nand_bbt.c
index 30d1319f..a6a9e661 100644
--- a/ANDROID_3.4.5/drivers/mtd/nand/nand_bbt.c
+++ b/ANDROID_3.4.5/drivers/mtd/nand/nand_bbt.c
@@ -68,7 +68,8 @@
#include <linux/delay.h>
#include <linux/vmalloc.h>
#include <linux/export.h>
-
+#include <mach/hardware.h>
+//#define RETRY_DEBUG
static int check_pattern_no_oob(uint8_t *buf, struct nand_bbt_descr *td)
{
int ret;
@@ -131,7 +132,7 @@ static int check_pattern(uint8_t *buf, int len, int paglen, struct nand_bbt_desc
* good / bad block identifiers. Same as check_pattern, but no optional empty
* check.
*/
-static int check_short_pattern(uint8_t *buf, struct nand_bbt_descr *td)
+static int check_short_pattern(uint8_t *buf, struct nand_bbt_descr *td, int ano_bytes)
{
int i;
uint8_t *p = buf;
@@ -141,6 +142,16 @@ static int check_short_pattern(uint8_t *buf, struct nand_bbt_descr *td)
if (p[td->offs + i] != td->pattern[i])
return -1;
}
+ if (ano_bytes) {
+ //printk("sandisk flash");
+ for (i = 0; i < ano_bytes; i++) {
+ //printk("of=0x%x da=0x%x len=%x\n", td->offs + i, p[td->offs + i], td->len);
+ if (p[i] != td->pattern[0]) {
+ printk("p[%d]=0x%x of=0x%x da=0x%x len=%x\n", i, p[i], td->offs + i, p[td->offs + i], td->len);
+ return -1;
+ }
+ }
+ }
return 0;
}
@@ -188,10 +199,12 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num,
totlen = (num * bits) >> 3;
marker_len = add_marker_len(td);
- from = ((loff_t)page) << this->page_shift;
+ //from = ((loff_t)page) << this->page_shift;
+ from = ((loff_t)page*mtd->pageSizek) << 10;
while (totlen) {
- len = min(totlen, (size_t)(1 << this->bbt_erase_shift));
+ //len = min(totlen, (size_t)(1 << this->bbt_erase_shift));
+ len = min(totlen, (size_t)(mtd->erasesize));
if (marker_len) {
/*
* In case the BBT marker is not in the OOB area it
@@ -225,8 +238,9 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num,
if (tmp == msk)
continue;
if (reserved_block_code && (tmp == reserved_block_code)) {
- pr_info("nand_read_bbt: reserved block at 0x%012llx\n",
- (loff_t)((offs << 2) + (act >> 1)) << this->bbt_erase_shift);
+ pr_info("nand_read_bbt: (read fail)reserved block at 0x%012llx\n",
+ //(loff_t)((offs << 2) + (act >> 1)) << this->bbt_erase_shift);
+ (loff_t)(((offs << 2) + (act >> 1))*mtd->pageSizek) << (10+this->pagecnt_shift));
this->bbt[offs + (act >> 3)] |= 0x2 << (act & 0x06);
mtd->ecc_stats.bbtblocks++;
continue;
@@ -235,8 +249,10 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num,
* Leave it for now, if it's matured we can
* move this message to pr_debug.
*/
- pr_info("nand_read_bbt: bad block at 0x%012llx\n",
- (loff_t)((offs << 2) + (act >> 1)) << this->bbt_erase_shift);
+ pr_info("nand_read_bbt: bad block at 0x%012llx (block%d)\n",
+ //(loff_t)((offs << 2) + (act >> 1)) << this->bbt_erase_shift,
+ (loff_t)(((offs << 2) + (act >> 1))*mtd->pageSizek) << (10+this->pagecnt_shift),
+ (offs << 2) + (act >> 1));
/* Factory marked bad or worn out? */
if (tmp == 0)
this->bbt[offs + (act >> 3)] |= 0x3 << (act & 0x06);
@@ -250,6 +266,111 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num,
}
return ret;
}
+extern void print_nand_buffer(char *value, unsigned int length);
+/**
+ * read_bbt_multi - [GENERIC] Read the bad block table starting from page
+ * @mtd: MTD device structure
+ * @buf: temporary buffer
+ * @page: the starting page
+ * @num: the number of bbt descriptors to read
+ * @td: the bbt describtion table
+ * @offs: offset in the memory table
+ *
+ * Read the bad block table starting from page.
+ */
+static int read_bbt_multi(struct mtd_info *mtd, uint8_t *buf, int page, int num,
+ struct nand_bbt_descr *td, int offs)
+{
+ int res, ret = 0, i, j, act = 0;
+ struct nand_chip *this = mtd->priv;
+ size_t retlen, len, totlen;
+ loff_t from;
+ int bits = (td->options & NAND_BBT_NRBITS_MSK)<<1;
+ uint8_t msk = (uint8_t)((1 << bits) - 1);
+ u32 marker_len;
+ int reserved_block_code = td->reserved_block_code;//=0
+//printk("--------bit=%d, msk=%d, code=%d\n",bits, msk, reserved_block_code);
+ totlen = (num * bits) >> 3;
+ marker_len = add_marker_len(td);
+ //from = ((loff_t)page) << this->page_shift;
+ from = ((loff_t)page*mtd->pageSizek) << 10;
+//printk("----totlen=%d, marker_len=%d, page=%d\n", totlen, marker_len, page);
+ while (totlen) {
+ //len = min(totlen, (size_t)(1 << this->bbt_erase_shift));
+ len = min(totlen, (size_t)(mtd->erasesize));
+ if (marker_len) {
+ /*
+ * In case the BBT marker is not in the OOB area it
+ * will be just in the first page.
+ */
+ len -= marker_len;
+ from += marker_len;
+ marker_len = 0;
+ }
+ res = mtd_read(mtd, from, len, &retlen, buf);
+ if (res < 0) {
+ if (mtd_is_eccerr(res)) {
+ pr_info("nand_bbt: ECC error in BBT at "
+ "0x%012llx\n", from & ~mtd->writesize);
+ return res;
+ } else if (mtd_is_bitflip(res)) {
+ pr_info("nand_bbt: corrected error in BBT at "
+ "0x%012llx\n", from & ~mtd->writesize);
+ ret = res;
+ } else {
+ pr_info("nand_bbt: error reading BBT\n");
+ return res;
+ }
+ }
+//printk("+++++++++++++++++len=%d, offs=%d\n", len, offs);
+//print_nand_buffer(buf, 8192+64);
+//print_nand_buffer(buf+8192, 8192+64);
+ /* Analyse data */
+ for (i = 0; i < len; i++) {
+ uint8_t dat = buf[i];
+ if (this->bbt_plane[0] == page || this->bbt_plane[1] == page)
+ dat = buf[i+mtd->realwritesize];
+ for (j = 0; j < 8; j += bits, act += 4) {
+ uint8_t tmp = (dat >> j) & msk;
+ if (tmp == msk)
+ continue;
+ if (reserved_block_code && (tmp == reserved_block_code)) {
+ pr_info("nand_read_bbt: (read fail)reserved block at 0x%012llx\n",
+ //(loff_t)((offs << 1) + (act >> 2)) << this->bbt_erase_shift);
+ (loff_t)(((offs << 1) + (act >> 2))*mtd->pageSizek) << (10+this->pagecnt_shift));
+ this->bbt[offs + (act >> 3)] |= 0xa << (act & 0x04);
+ mtd->ecc_stats.bbtblocks++;
+ continue;
+ }
+ /*
+ * Leave it for now, if it's matured we can
+ * move this message to pr_debug.
+ */
+ pr_info("nand_read_bbt: bad block at 0x%012llx (block%d)\n",
+ //(loff_t)((offs << 1) + (act >> 2)) << this->bbt_erase_shift,
+ ((loff_t)(((offs << 1) + (act >> 2))*mtd->pageSizek)) << (10+this->pagecnt_shift),
+ (offs << 1) + (act >> 2));
+
+ /* Factory marked bad or worn out? */
+ if (tmp == 0) {
+ this->bbt[offs + (act >> 3)] |= 0xf << (act & 0x04);
+ //printk("bbt[%d]=0x%x", offs + (act >> 3), this->bbt[offs + (act >> 3)] |= 0xf << (act & 0x04));
+ } else if (tmp == 0x3) {
+ this->bbt[offs + (act >> 3)] |= 0xc << (act & 0x04);
+ //printk("bbt[%d]=0x%x", offs + (act >> 3), this->bbt[offs + (act >> 3)] |= 0xc << (act & 0x04));
+ } else if (tmp == 0xc) {
+ this->bbt[offs + (act >> 3)] |= 0x3 << (act & 0x04);
+ //printk("bbt[%d]=0x%x", offs + (act >> 3), this->bbt[offs + (act >> 3)] |= 0x3 << (act & 0x04));
+ } else
+ this->bbt[offs + (act >> 3)] |= 0x5 << (act & 0x04);
+ mtd->ecc_stats.badblocks++;
+ }
+ }
+ totlen -= len;
+ from += len;
+ }
+ return ret;
+}
/**
* read_abs_bbt - [GENERIC] Read the bad block table starting at a given page
@@ -270,17 +391,155 @@ static int read_abs_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc
if (td->options & NAND_BBT_PERCHIP) {
int offs = 0;
for (i = 0; i < this->numchips; i++) {
- if (chip == -1 || chip == i)
- res = read_bbt(mtd, buf, td->pages[i],
- this->chipsize >> this->bbt_erase_shift,
- td, offs);
+ if (chip == -1 || chip == i) {
+ if (this->realplanenum) {
+ /* multi plane mode use 4-bit as an block instead of 2-bit */
+ res = read_bbt_multi(mtd, buf, td->pages[i],
+ //this->chipsize >> this->bbt_erase_shift,
+ (int)(this->chipsize >> (10+this->pagecnt_shift))/mtd->pageSizek,
+ td, offs);
+ } else {
+ res = read_bbt(mtd, buf, td->pages[i],
+ //this->chipsize >> this->bbt_erase_shift,
+ (int)(this->chipsize >> (10+this->pagecnt_shift))/mtd->pageSizek,
+ td, offs);
+ }
+ }
if (res)
return res;
- offs += this->chipsize >> (this->bbt_erase_shift + 2);
+ if (this->realplanenum) {
+ //offs += this->chipsize >> (this->bbt_erase_shift + 1);
+ offs += ((int)(this->chipsize >> (10+this->pagecnt_shift+1))/mtd->pageSizek);
+ } else {
+ //offs += this->chipsize >> (this->bbt_erase_shift + 2);
+ offs += ((int)(this->chipsize >> (10+this->pagecnt_shift+2))/mtd->pageSizek);
+ }
}
} else {
- res = read_bbt(mtd, buf, td->pages[0],
- mtd->size >> this->bbt_erase_shift, td, 0);
+ if (this->realplanenum) {
+ /* multi plane mode use 4-bit as an block instead of 2-bit */
+ res = read_bbt_multi(mtd, buf, td->pages[0],
+ //mtd->size >> this->bbt_erase_shift, td, 0);
+ (int)(mtd->size >> (10+this->pagecnt_shift))/mtd->pageSizek, td, 0);
+ } else {
+ res = read_bbt(mtd, buf, td->pages[0],
+ //mtd->size >> this->bbt_erase_shift, td, 0);
+ (int)(mtd->size >> (10+this->pagecnt_shift))/mtd->pageSizek, td, 0);
+ if (res)
+ return res;
+ }
+ }
+ return 0;
+}
+
+
+/**
+ * read_retry_table - [GENERIC] Read the retry table starting from page
+ * @mtd: MTD device structure
+ * @buf: temporary buffer
+ * @page: the starting page
+ * @num: the number of bbt descriptors to read
+ * @td: the bbt describtion table
+ * @offs: offset in the memory table
+ *
+ * Read the read retry table starting from page.
+ *
+ */
+static int read_retry_table(struct mtd_info *mtd, uint8_t *buf, int page, int chip)
+{
+ int res;
+ struct nand_chip *this = mtd->priv;
+ struct nand_read_retry_param *rdtry;
+ size_t retlen;
+ loff_t from;
+
+ //from = ((loff_t) page) << this->page_shift;
+ from = ((loff_t) (page*mtd->pageSizek)) << 10;
+
+ res = mtd->_read(mtd, from, mtd->writesize, &retlen, buf);
+ if (res < 0) {
+ if (retlen != mtd->writesize) {
+ printk(KERN_INFO "nand_bbt: Error reading retry table\n");
+ return res;
+ }
+ printk(KERN_WARNING "nand_bbt: ECC error while reading retry table\n");
+ }
+
+ /* Analyse data */
+ rdtry = (struct nand_read_retry_param *)buf;
+ #ifdef RETRY_DEBUG
+ print_nand_buffer((uint8_t *)this->cur_chip, sizeof(chip_table[0]));
+ #endif
+ if (strcmp("readretry", rdtry->magic) /*|| info->data_ecc_uncor_err == 2*/) {
+ printk(KERN_WARNING "nand_bbt: retry table magic number wrong%s\n", rdtry->magic);
+ return -1;
+ }
+ #ifdef RETRY_DEBUG
+ printk(KERN_WARNING "nand_bbt: copy from buf\n");
+ #endif
+ memcpy(/*(uint8_t *)*/this->cur_chip, buf, sizeof(chip_table[0])-16);
+ this->cur_chip->retry_def_value[this->cur_chip->retry_reg_num] = 0xff;
+ this->cur_chip->retry_def_value[this->cur_chip->retry_reg_num+1] = 0xff;
+ #ifdef RETRY_DEBUG
+ print_nand_buffer((uint8_t *)this->cur_chip, sizeof(chip_table[0]));
+ #endif
+
+ /*if (rdtry->eslc_reg_num) {
+ if (rdtry->eslc_reg_num > 5)
+ printk(KERN_WARNING "nand_bbt: eslc reg size=%d is too big\n", rdtry->eslc_reg_num);
+ this->eslc_reg_num = rdtry->eslc_reg_num;
+ this->eslc_cmd = kzalloc(this->eslc_reg_num, GFP_KERNEL);
+ if (!this->eslc_cmd) {
+ printk(KERN_ERR "nand_scan_bbt: create eslc_cmd Out of memory\n");
+ return -ENOMEM;
+ }
+ }
+ memcpy(this->eslc_cmd, ((uint8_t *)&rdtry->retry_reg_num)+4, this->eslc_reg_num);
+ print_nand_buffer(this->eslc_cmd, this->eslc_reg_num);
+
+ if (rdtry->total_retry_cnt && rdtry->retry_reg_num) {
+ if ((rdtry->total_retry_cnt * rdtry->retry_reg_num) > 64)
+ printk(KERN_WARNING "nand_bbt: eslc reg size=%d is too big\n",
+ (rdtry->total_retry_cnt * rdtry->retry_reg_num));
+ this->total_retry_cnt = rdtry->total_retry_cnt;
+ this->retry_reg_num = rdtry->retry_reg_num;
+ this->retry_cmd = kzalloc((this->retry_reg_num*this->total_retry_cnt), GFP_KERNEL);
+ if (!this->retry_cmd) {
+ printk(KERN_ERR "nand_scan_bbt: create retry_cmd Out of memory\n");
+ return -ENOMEM;
+ }
+ }
+ memcpy(this->retry_cmd, ((uint8_t *)&rdtry->retry_reg_num)+4+this->eslc_reg_num,
+ (this->retry_reg_num*this->total_retry_cnt));
+
+
+ for (i = 0; i < this->total_retry_cnt; i++) {
+ print_nand_buffer(&this->retry_cmd[i*this->retry_reg_num], this->retry_reg_num);
+ }*/
+
+ return 0;
+}
+
+/**
+ * read_abs_retry_table - [GENERIC] Read the retry table starting at a given page
+ * @mtd: MTD device structure
+ * @buf: temporary buffer
+ * @td: descriptor for the bad block table
+ * @chip: read the table for a specific chip, -1 read all chips.
+ *
+ * Read the retry table for all chips starting at a given page
+*/
+static int read_abs_retry_table(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td, int chip)
+{
+ //struct nand_chip *this = mtd->priv;
+ int res = 0, i, chips;
+
+ //chips = this->numchips
+ chips = 1;
+
+ for (i = 0; i < chips; i++) {
+ if (chip == -1 || chip == i)
+ res = read_retry_table(mtd, buf, td->pages[i], chip);
if (res)
return res;
}
@@ -351,7 +610,7 @@ static int scan_write_bbt(struct mtd_info *mtd, loff_t offs, size_t len,
ops.oobbuf = oob;
ops.len = len;
- return mtd_write_oob(mtd, offs, &ops);
+ return mtd_write_oob(mtd, offs, &ops); /* call mtd->_write_oob*/
}
static u32 bbt_get_ver_offs(struct mtd_info *mtd, struct nand_bbt_descr *td)
@@ -376,11 +635,12 @@ static u32 bbt_get_ver_offs(struct mtd_info *mtd, struct nand_bbt_descr *td)
static int read_abs_bbts(struct mtd_info *mtd, uint8_t *buf,
struct nand_bbt_descr *td, struct nand_bbt_descr *md)
{
- struct nand_chip *this = mtd->priv;
+ //struct nand_chip *this = mtd->priv;
/* Read the primary version, if available */
if (td->options & NAND_BBT_VERSION) {
- scan_read_raw(mtd, buf, (loff_t)td->pages[0] << this->page_shift,
+ //scan_read_raw(mtd, buf, (loff_t)td->pages[0] << this->page_shift,
+ scan_read_raw(mtd, buf, (loff_t)(td->pages[0]*mtd->pageSizek) << 10,
mtd->writesize, td);
td->version[0] = buf[bbt_get_ver_offs(mtd, td)];
pr_info("Bad block table at page %d, version 0x%02X\n",
@@ -389,7 +649,8 @@ static int read_abs_bbts(struct mtd_info *mtd, uint8_t *buf,
/* Read the mirror version, if available */
if (md && (md->options & NAND_BBT_VERSION)) {
- scan_read_raw(mtd, buf, (loff_t)md->pages[0] << this->page_shift,
+ //scan_read_raw(mtd, buf, (loff_t)md->pages[0] << this->page_shift,
+ scan_read_raw(mtd, buf, (loff_t)(md->pages[0]*mtd->pageSizek) << 10,
mtd->writesize, td);
md->version[0] = buf[bbt_get_ver_offs(mtd, md)];
pr_info("Bad block table at page %d, version 0x%02X\n",
@@ -422,7 +683,7 @@ static int scan_block_fast(struct mtd_info *mtd, struct nand_bbt_descr *bd,
loff_t offs, uint8_t *buf, int len)
{
struct mtd_oob_ops ops;
- int j, ret;
+ int j, ret, more_bytes = 0, flag = 0;
ops.ooblen = mtd->oobsize;
ops.oobbuf = buf;
@@ -430,20 +691,54 @@ static int scan_block_fast(struct mtd_info *mtd, struct nand_bbt_descr *bd,
ops.datbuf = NULL;
ops.mode = MTD_OPS_PLACE_OOB;
+ if ((mtd->id>>24) == 0x45) {
+ more_bytes = 6;
+ }
for (j = 0; j < len; j++) {
/*
* Read the full oob until read_oob is fixed to handle single
* byte reads for 16 bit buswidth.
*/
- ret = mtd_read_oob(mtd, offs, &ops);
+ /* Dannier Chen patch 2010.04.20: start
+ check invalid bad block on which page of blocks
+ should be based on flash spec, for example flash type:HY27UT088G2M-T(P) bad block
+ is marked at page 125 and 127 of each block.
+ NOT always page 0 and 1.
+ */
+ //printk("scan_block_fast: j=%d len=%d bd->page_offset[0]=%d offset[1]=%d\n ", j, len, bd->page_offset[0], bd->page_offset[1]);
+#ifdef CONFIG_MTD_NAND_WMT_HWECC
+ ret = mtd->read_bbinfo_facmk(mtd, offs + bd->page_offset[j]*mtd->writesize, &ops);
+#else
+ ret = mtd->read_oob(mtd, offs + bd->page_offset[j]*mtd->writesize, &ops);
+#endif
/* Ignore ECC errors when checking for BBM */
if (ret && !mtd_is_bitflip_or_eccerr(ret))
return ret;
- if (check_short_pattern(buf, bd))
- return 1;
-
- offs += mtd->writesize;
+ if (check_short_pattern(buf, bd, more_bytes))
+ flag |= 1;//return 1;
+
+ if ((flag&1) == 0)
+ if (mtd->id == 0xECDED57E && mtd->id2 == 0x68440000)
+ if (check_short_pattern(buf+1, bd, 0))
+ flag |= 1;//return 1;
+
+ if (mtd->planenum > 1) {
+ if (check_short_pattern(buf+more_bytes, bd, more_bytes))
+ flag |= 2;//return 1;
+
+ if (check_short_pattern(buf+32, bd, 0))
+ flag |= 2;//return 1;
+
+ if ((flag&2) == 0)
+ if (mtd->id == 0xECDED57E && mtd->id2 == 0x68440000)
+ if (check_short_pattern(buf+33, bd, 0))
+ flag |= 2;//return 1;
+ }
+ if (flag)
+ return flag;
+ /*offs += mtd->writesize;*/
+ /* Dannier Chen patch 2010.04.20: end */
}
return 0;
}
@@ -471,7 +766,8 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
pr_info("Scanning device for bad blocks\n");
if (bd->options & NAND_BBT_SCANALLPAGES)
- len = 1 << (this->bbt_erase_shift - this->page_shift);
+ //len = 1 << (this->bbt_erase_shift - this->page_shift);
+ len = 1 << (this->pagecnt_shift);
else if (bd->options & NAND_BBT_SCAN2NDPAGE)
len = 2;
else
@@ -492,7 +788,8 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
* Note that numblocks is 2 * (real numblocks) here, see i+=2
* below as it makes shifting and masking less painful
*/
- numblocks = mtd->size >> (this->bbt_erase_shift - 1);
+ //numblocks = mtd->size >> (this->bbt_erase_shift - 1);
+ numblocks = ((int)(mtd->size >> (10+this->pagecnt_shift-1)))/mtd->pageSizek;
startblock = 0;
from = 0;
} else {
@@ -501,10 +798,12 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
chip + 1, this->numchips);
return -EINVAL;
}
- numblocks = this->chipsize >> (this->bbt_erase_shift - 1);
+ //numblocks = this->chipsize >> (this->bbt_erase_shift - 1);
+ numblocks = ((int)(this->chipsize >> (10+this->pagecnt_shift-1)))/mtd->pageSizek;
startblock = chip * numblocks;
numblocks += startblock;
- from = (loff_t)startblock << (this->bbt_erase_shift - 1);
+ //from = (loff_t)startblock << (this->bbt_erase_shift - 1);
+ from = (loff_t)(startblock*mtd->pageSizek) << (10+this->pagecnt_shift-1);
}
if (this->bbt_options & NAND_BBT_SCANLASTPAGE)
@@ -512,6 +811,19 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
for (i = startblock; i < numblocks;) {
int ret;
+
+ if (((mtd->id>>24)&0xFF) == 0x45) {
+ /* dannierchen add to erase sandisk all blocks before check bad block 20121217 */
+ /*printk(KERN_INFO "create_bbt: erase all blocks for sandisk\n");*/
+ struct erase_info einfo;
+ memset(&einfo, 0, sizeof(einfo));
+ einfo.mtd = mtd;
+ einfo.addr = from;
+ //einfo.len = 1 << this->bbt_erase_shift;
+ einfo.len = mtd->erasesize;
+ /*printk("einfo.addr is %llx einfo.len is %llx\n", einfo.addr, einfo.len);*/
+ nand_erase_nand(mtd, &einfo, 0xFF);
+ } /* end of dannierchen erase 20121217 */
BUG_ON(bd->options & NAND_BBT_NO_OOB);
@@ -529,14 +841,251 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
pr_warn("Bad eraseblock %d at 0x%012llx\n",
i >> 1, (unsigned long long)from);
mtd->ecc_stats.badblocks++;
- }
+
+ /* edwardwan add for debug 20071229 start */
+#if 0
+ if(mtd->ecc_stats.badblocks > 10){
+ printk("\rnand flash bad block number is greater than 10\n");
+ return 0;
+ }
+ /* edwardwan add for debug 20071229 end */
+#endif
+ } else if (((mtd->id>>24)&0xFF) != 0x45) { /* dannierchen add to erase good block when first creat table 20091014 */
+ /*printk(KERN_INFO "create_bbt: erase good blocks\n");*/
+ struct erase_info einfo;
+ int res = 0;
+ memset(&einfo, 0, sizeof(einfo));
+ einfo.mtd = mtd;
+ einfo.addr = from;
+ //einfo.len = 1 << this->bbt_erase_shift;
+ einfo.len = mtd->erasesize;
+ /*printk("einfo.addr is %llx\n",einfo.addr);
+ printk("einfo.len is %llx\n",einfo.len);*/
+ res = nand_erase_nand(mtd, &einfo, 0xFF);
+ if (res < 0)
+ printk("enand_erase_nand addr 0x%llx result is %x\n", einfo.addr, res);
+ } /* end of dannierchen erase 20091014 */
i += 2;
- from += (1 << this->bbt_erase_shift);
+ //from += (1 << this->bbt_erase_shift);
+ from += (mtd->erasesize);
+ }
+ return 0;
+}
+
+/**
+ * create_bbt_multi - [GENERIC] Create a bad block table by scanning the device
+ * @mtd: MTD device structure
+ * @buf: temporary buffer
+ * @bd: descriptor for the good/bad block search pattern
+ * @chip: create the table for a specific chip, -1 read all chips; applies only
+ * if NAND_BBT_PERCHIP option is set
+ *
+ * Create a bad block table by scanning the device for the given good/bad block
+ * identify pattern.
+ */
+static int create_bbt_multi(struct mtd_info *mtd, uint8_t *buf,
+ struct nand_bbt_descr *bd, int chip)
+{
+ struct nand_chip *this = mtd->priv;
+ int i, numblocks, len, scanlen;
+ int startblock;
+ loff_t from;
+ size_t readlen;
+
+ pr_info("Scanning device for bad blocks\n");
+
+ if (bd->options & NAND_BBT_SCANALLPAGES)
+ //len = 1 << (this->bbt_erase_shift - this->page_shift);
+ len = 1 << this->pagecnt_shift;
+ else if (bd->options & NAND_BBT_SCAN2NDPAGE)
+ len = 2;
+ else
+ len = 1;
+
+ if (!(bd->options & NAND_BBT_SCANEMPTY)) {
+ /* We need only read few bytes from the OOB area */
+ scanlen = 0;
+ readlen = bd->len;
+ } else {
+ /* Full page content should be read */
+ scanlen = mtd->writesize + mtd->oobsize;
+ readlen = len * mtd->writesize;
+ }
+
+ if (chip == -1) {
+ /*
+ * Note that numblocks is 2 * (real numblocks) here, see i+=2
+ * below as it makes shifting and masking less painful
+ */
+ //numblocks = mtd->size >> (this->bbt_erase_shift - 2);
+ numblocks = ((int)(mtd->size >> (10+this->pagecnt_shift-2)))/mtd->pageSizek;
+ startblock = 0;
+ from = 0;
+ } else {
+ if (chip >= this->numchips) {
+ pr_warn("create_bbt_multi(): chipnr (%d) > available chips (%d)\n",
+ chip + 1, this->numchips);
+ return -EINVAL;
+ }
+ //numblocks = this->chipsize >> (this->bbt_erase_shift - 2);
+ numblocks = ((int)(this->chipsize >> (10+this->pagecnt_shift-2)))/mtd->pageSizek;
+ startblock = chip * numblocks;
+ numblocks += startblock;
+ //from = (loff_t)startblock << (this->bbt_erase_shift - 2);
+ from = (loff_t)(startblock*mtd->pageSizek) << (10+this->pagecnt_shift-2);
+ }
+
+ if (this->bbt_options & NAND_BBT_SCANLASTPAGE)
+ from += mtd->erasesize - (mtd->writesize * len);
+
+ for (i = startblock; i < numblocks;) {
+ int ret;
+
+ if ((mtd->id>>24) == 0x45) {
+ /* dannierchen add to erase sandisk all blocks before check bad block 20121217 */
+ /*printk(KERN_INFO "create_bbt_multi: erase all blocks for sandisk\n");*/
+ struct erase_info einfo;
+ memset(&einfo, 0, sizeof(einfo));
+ einfo.mtd = mtd;
+ einfo.addr = from;
+ //einfo.len = 1 << this->bbt_erase_shift;
+ einfo.len = mtd->erasesize;
+ /*printk("einfo.addr is %llx einfo.len is %llx\n", einfo.addr, einfo.len);*/
+ nand_erase_nand(mtd, &einfo, 0xFF);
+ } /* end of dannierchen erase 20121217 */
+
+ BUG_ON(bd->options & NAND_BBT_NO_OOB);
+
+ if (bd->options & NAND_BBT_SCANALLPAGES)
+ ret = scan_block_full(mtd, bd, from, buf, readlen,
+ scanlen, len);
+ else
+ ret = scan_block_fast(mtd, bd, from, buf, len);
+
+ if (ret < 0)
+ return ret;
+
+ if (ret) {
+ this->bbt[i >> 3] |= 0x0F << (i & 0x4);
+ pr_warn("Bad eraseblock %d at 0x%012llx\n",
+ i >> 2, (unsigned long long)from);
+ mtd->ecc_stats.badblocks++;
+
+ /* edwardwan add for debug 20071229 start */
+#if 0
+ if(mtd->ecc_stats.badblocks > 10){
+ printk("\rnand flash bad block number is greater than 10\n");
+ return 0;
+ }
+ /* edwardwan add for debug 20071229 end */
+#endif
+ } else if ((mtd->id>>24) != 0x45) { /* dannierchen add to erase good block when first creat table 20091014 */
+ /*printk(KERN_INFO "create_bbt_multi: erase good blocks\n");*/
+ struct erase_info einfo;
+ int res = 0;
+ memset(&einfo, 0, sizeof(einfo));
+ einfo.mtd = mtd;
+ einfo.addr = from;
+ //einfo.len = 1 << this->bbt_erase_shift;
+ einfo.len = mtd->erasesize;
+ /*printk("einfo.addr is %llx\n",einfo.addr);
+ printk("einfo.len is %llx\n",einfo.len);*/
+ res = nand_erase_nand(mtd, &einfo, 0xFF);
+ if (res < 0)
+ printk("enand_erase_nand addr 0x%llx result is %x\n", einfo.addr, res);
+ } /* end of dannierchen erase 20091014 */
+
+ i += 4;
+ //from += (1 << this->bbt_erase_shift);
+ from += (mtd->erasesize);
+ }
+ return 0;
+}
+
+int create_hynix_table(struct mtd_info *mtd, int chip)
+{
+ int res;
+ res = mtd->get_para(mtd, chip);
+
+ return res;
+}
+
+static int check_retry_pattern(uint8_t *buf, int paglen, struct nand_bbt_descr *td)
+{
+ int i;
+ uint8_t *p = buf+paglen;
+
+ for (i = 0; i < 10; i++) {
+ if (p[i] != td->pattern[i])
+ return -1;
+ }
+ return 0;
+}
+/*
+*
+* read oob to search retry table
+*
+*/
+
+static int search_hynix_retry_table(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td)
+{
+ struct nand_chip *this = mtd->priv;
+ int i, chips;
+ int startblock, block, dir;
+ int bbtblocks;
+ //int blocktopage = this->bbt_erase_shift - this->page_shift;
+ int blocktopage = this->pagecnt_shift;
+
+ /* Search direction top -> down ? */
+ //if (td->options & NAND_BBT_LASTBLOCK) {
+ //startblock = (mtd->size >> this->bbt_erase_shift) - 1;
+ startblock = ((int)(mtd->size >> (10+this->pagecnt_shift)))/mtd->pageSizek - 1;
+ dir = -1;
+ /*} else {
+ startblock = 0;
+ dir = 1;
+ }*/
+
+ //so far use first chip parameter for read retry on 2-die chip
+ //chips = this->numchips;
+ chips = 1;
+
+ //bbtblocks = this->chipsize >> this->bbt_erase_shift;
+ bbtblocks = ((int)(this->chipsize >> (10+this->pagecnt_shift)))/mtd->pageSizek;
+ startblock &= bbtblocks - 5;
+
+ for (i = 0; i < chips; i++) {
+ td->pages[i] = -1;
+ /* Scan the maximum number of blocks */
+ for (block = 0; block < td->maxblocks; block++) {
+
+ int actblock = startblock + dir * block;
+ //loff_t offs = (loff_t)actblock << this->bbt_erase_shift;
+ loff_t offs = (loff_t)(actblock*mtd->pageSizek) << (10+this->pagecnt_shift);
+
+ /* Read first page */
+ scan_read_raw(mtd, buf, offs, mtd->writesize, td);
+
+ if (!check_retry_pattern(buf, mtd->writesize, this->retry_pattern)) {
+ td->pages[i] = actblock << blocktopage;
+ break;
+ }
+ }
+ //startblock += this->chipsize >> this->bbt_erase_shift;
+ startblock += ((int)(this->chipsize >> (10+this->pagecnt_shift)))/mtd->pageSizek;
+ }
+ /* Check, if we found a bbt for each requested chip */
+ for (i = 0; i < chips; i++) {
+ if (td->pages[i] == -1)
+ printk(KERN_WARNING "Retry block table not found for chip %d\n", i);
+ else
+ printk(KERN_WARNING "Retry block table is found for chip %d\n", i);
}
return 0;
}
+
/**
* search_bbt - [GENERIC] scan the device for a specific bad block table
* @mtd: MTD device structure
@@ -559,11 +1108,13 @@ static int search_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr
int bits, startblock, block, dir;
int scanlen = mtd->writesize + mtd->oobsize;
int bbtblocks;
- int blocktopage = this->bbt_erase_shift - this->page_shift;
+ //int blocktopage = this->bbt_erase_shift - this->page_shift;
+ int blocktopage = this->pagecnt_shift;
/* Search direction top -> down? */
if (td->options & NAND_BBT_LASTBLOCK) {
- startblock = (mtd->size >> this->bbt_erase_shift) - 1;
+ //startblock = (mtd->size >> this->bbt_erase_shift) - 1;
+ startblock = ((int)(mtd->size >> (10+this->pagecnt_shift)))/mtd->pageSizek - 1;
dir = -1;
} else {
startblock = 0;
@@ -573,15 +1124,19 @@ static int search_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr
/* Do we have a bbt per chip? */
if (td->options & NAND_BBT_PERCHIP) {
chips = this->numchips;
- bbtblocks = this->chipsize >> this->bbt_erase_shift;
+ //bbtblocks = this->chipsize >> this->bbt_erase_shift;
+ bbtblocks = ((int)(this->chipsize >> (10+this->pagecnt_shift)))/mtd->pageSizek;
startblock &= bbtblocks - 1;
} else {
chips = 1;
- bbtblocks = mtd->size >> this->bbt_erase_shift;
+ //bbtblocks = mtd->size >> this->bbt_erase_shift;
+ bbtblocks = ((int)(mtd->size >> (10+this->pagecnt_shift)))/mtd->pageSizek;
}
/* Number of bits for each erase block in the bbt */
bits = td->options & NAND_BBT_NRBITS_MSK;
+ if (this->realplanenum)
+ bits<<=1;
for (i = 0; i < chips; i++) {
/* Reset version information */
@@ -591,20 +1146,39 @@ static int search_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr
for (block = 0; block < td->maxblocks; block++) {
int actblock = startblock + dir * block;
- loff_t offs = (loff_t)actblock << this->bbt_erase_shift;
+ //loff_t offs = (loff_t)actblock << this->bbt_erase_shift;
+ loff_t offs = (loff_t)(actblock*mtd->pageSizek) << (10+this->pagecnt_shift);
/* Read first page */
scan_read_raw(mtd, buf, offs, mtd->writesize, td);
+ //print_nand_buffer(buf+mtd->writesize, 64);
if (!check_pattern(buf, scanlen, mtd->writesize, td)) {
td->pages[i] = actblock << blocktopage;
+ printk("get bbt0 from %x\n",td->pages[i]);
+ this->bbt_plane[i] = 0;
if (td->options & NAND_BBT_VERSION) {
- offs = bbt_get_ver_offs(mtd, td);
- td->version[i] = buf[offs];
+ u32 offs_ver;
+ offs_ver = bbt_get_ver_offs(mtd, td);
+ td->version[i] = buf[offs_ver];
}
break;
}
+ if (this->realplanenum)
+ if (!check_pattern(buf, scanlen, mtd->writesize+20, td)) {
+ td->pages[i] = actblock << blocktopage;
+ //printk("get bbt1 from %x\n",td->pages[i]);
+ this->bbt_plane[i] = td->pages[i];
+ //printk("get bbt plane[%d] from %x\n",i, this->bbt_plane[i]);
+ if (td->options & NAND_BBT_VERSION) {
+ u32 offs_ver;
+ offs_ver = bbt_get_ver_offs(mtd, td);
+ td->version[i] = buf[20+offs_ver];
+ }
+ break;
+ }
}
- startblock += this->chipsize >> this->bbt_erase_shift;
+ //startblock += this->chipsize >> this->bbt_erase_shift;
+ startblock += ((int)(this->chipsize >> (10+this->pagecnt_shift)))/mtd->pageSizek;
}
/* Check, if we found a bbt for each requested chip */
for (i = 0; i < chips; i++) {
@@ -617,6 +1191,9 @@ static int search_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr
return 0;
}
+extern int reset_nfc(struct mtd_info *mtd, unsigned int *buf, int step);
+extern void nfc_hw_rdmz(struct mtd_info *mtd, int on);
+extern void print_nand_register(struct mtd_info *mtd);
/**
* search_read_bbts - [GENERIC] scan the device for bad block table(s)
* @mtd: MTD device structure
@@ -673,7 +1250,8 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
rcode = 0xff;
/* Write bad block table per chip rather than per device? */
if (td->options & NAND_BBT_PERCHIP) {
- numblocks = (int)(this->chipsize >> this->bbt_erase_shift);
+ //numblocks = (int)(this->chipsize >> this->bbt_erase_shift);
+ numblocks = ((int)(this->chipsize >> (10+this->pagecnt_shift)))/mtd->pageSizek;
/* Full device write or specific chip? */
if (chipsel == -1) {
nrchips = this->numchips;
@@ -682,7 +1260,8 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
chip = chipsel;
}
} else {
- numblocks = (int)(mtd->size >> this->bbt_erase_shift);
+ //numblocks = (int)(mtd->size >> this->bbt_erase_shift);
+ numblocks = ((int)(mtd->size >> (10+this->pagecnt_shift)))/mtd->pageSizek;
nrchips = 1;
}
@@ -720,7 +1299,8 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
continue;
}
page = block <<
- (this->bbt_erase_shift - this->page_shift);
+ //(this->bbt_erase_shift - this->page_shift);
+ this->pagecnt_shift;
/* Check, if the block is used by the mirror table */
if (!md || md->pages[chip] != page)
goto write;
@@ -731,7 +1311,7 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
/* Set up shift count and masks for the flash table */
bits = td->options & NAND_BBT_NRBITS_MSK;
- msk[2] = ~rcode;
+ msk[2] = 2;//~rcode;
switch (bits) {
case 1: sft = 3; sftmsk = 0x07; msk[0] = 0x00; msk[1] = 0x01;
msk[3] = 0x01;
@@ -749,14 +1329,20 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
}
bbtoffs = chip * (numblocks >> 2);
+ if (this->realplanenum)
+ bbtoffs = chip * (numblocks >> 1);
- to = ((loff_t)page) << this->page_shift;
+ //to = ((loff_t)page) << this->page_shift;
+ to = ((loff_t) (page*mtd->pageSizek)) << 10;
/* Must we save the block contents? */
if (td->options & NAND_BBT_SAVECONTENT) {
+ printk("inlegal------not go-----------\n");
/* Make it block aligned */
- to &= ~((loff_t)((1 << this->bbt_erase_shift) - 1));
- len = 1 << this->bbt_erase_shift;
+ //to &= ~((loff_t)((1 << this->bbt_erase_shift) - 1));
+ to &= ~((loff_t)((mtd->erasesize) - 1));//danbbg
+ //len = 1 << this->bbt_erase_shift;
+ len = mtd->erasesize;
res = mtd_read(mtd, to, len, &retlen, buf);
if (res < 0) {
if (retlen != len) {
@@ -768,15 +1354,18 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
"block for writing bad block table\n");
}
/* Read oob data */
- ops.ooblen = (len >> this->page_shift) * mtd->oobsize;
+ //ops.ooblen = (len >> this->page_shift) * mtd->oobsize;
+ ops.ooblen = (mtd->pagecnt) * mtd->oobsize;
ops.oobbuf = &buf[len];
res = mtd_read_oob(mtd, to + mtd->writesize, &ops);
if (res < 0 || ops.oobretlen != ops.ooblen)
goto outerr;
/* Calc the byte offset in the buffer */
- pageoffs = page - (int)(to >> this->page_shift);
- offs = pageoffs << this->page_shift;
+ //pageoffs = page - (int)(to >> this->page_shift);
+ pageoffs = page - ((int)(to >> 10))/mtd->pageSizek;
+ //offs = pageoffs << this->page_shift;
+ offs = (pageoffs*mtd->pageSizek) << 10;
/* Preset the bbt area with 0xff */
memset(&buf[offs], 0xff, (size_t)(numblocks >> sft));
ooboffs = len + (pageoffs * mtd->oobsize);
@@ -801,9 +1390,12 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
len = (size_t)(numblocks >> sft);
/* Make it page aligned! */
len = ALIGN(len, mtd->writesize);
+ if (len < mtd->writesize)
+ len = mtd->writesize;
/* Preset the buffer with 0xff */
memset(buf, 0xff, len +
- (len >> this->page_shift)* mtd->oobsize);
+ //(len >> this->page_shift)* mtd->oobsize);
+ mtd->pagecnt* mtd->oobsize);
offs = 0;
ooboffs = len;
/* Pattern is located in oob area of first page */
@@ -820,17 +1412,276 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
for (j = 0; j < 4; j++, i++) {
int sftcnt = (i << (3 - sft)) & sftmsk;
/* Do not store the reserved bbt blocks! */
- buf[offs + (i >> sft)] &=
- ~(msk[dat & 0x03] << sftcnt);
+
+ /* dannier 2014/03/01 add a condition only retry and bbt blocks are not store
+ read retry command fail blocks are marked as reserved blk and need to be stored to flash */
+ if (i >= (numblocks - td->maxblocks - 4) && (dat&0x3) == 0x2) {
+ //buf[offs + (i >> sft)] &= ~(msk[dat & 0x03] << sftcnt);
+ //printk("offs + (i >> sft)=%d data=0x%x, dat=0x%x sft=%d\n",offs + (i >> sft), ~(msk[dat & 0x03] << sftcnt), dat, sft);
+ } else
+ buf[offs + (i >> sft)] &= ~(msk[dat & 0x03] << sftcnt);
dat >>= 2;
}
}
+ memset(&einfo, 0, sizeof(einfo));
+ einfo.mtd = mtd;
+ einfo.addr = to;
+ //einfo.len = 1 << this->bbt_erase_shift;
+ einfo.len = mtd->erasesize;
+ res = nand_erase_nand(mtd, &einfo, 1);
+ if (res < 0)
+ goto outerr;
+
+ res = scan_write_bbt(mtd, to, len, buf,
+ td->options & NAND_BBT_NO_OOB ? NULL :
+ &buf[len]);
+ if (res < 0)
+ goto outerr;
+ pr_info("Bad block table written to 0x%012llx, version 0x%02X\n",
+ (unsigned long long)to, td->version[chip]);
+//while(1);
+ /* Mark it as used */
+ td->pages[chip] = page;
+ }
+ return 0;
+
+ outerr:
+ pr_warn("nand_bbt: error while writing bad block table %d\n", res);
+ return res;
+}
+
+/**
+ * write_bbt - [GENERIC] (Re)write the bad block table
+ * @mtd: MTD device structure
+ * @buf: temporary buffer
+ * @td: descriptor for the bad block table
+ * @md: descriptor for the bad block table mirror
+ * @chipsel: selector for a specific chip, -1 for all
+ *
+ * (Re)write the bad block table.
+ */
+static int write_bbt_multi(struct mtd_info *mtd, uint8_t *buf,
+ struct nand_bbt_descr *td, struct nand_bbt_descr *md,
+ int chipsel)
+{
+ struct nand_chip *this = mtd->priv;
+ struct erase_info einfo;
+ int i, j, res, chip = 0;
+ int bits, startblock, dir, page, offs, numblocks, sft, sftmsk;
+ int nrchips, bbtoffs, pageoffs, ooboffs;
+ uint8_t msk[16];
+ uint8_t rcode = td->reserved_block_code;
+ size_t retlen, len = 0;
+ loff_t to;
+ struct mtd_oob_ops ops;
+
+ ops.ooblen = mtd->oobsize;
+ ops.ooboffs = 0;
+ ops.datbuf = NULL;
+ ops.mode = MTD_OPS_PLACE_OOB;
+
+ if (!rcode)
+ rcode = 0xff;
+ /* Write bad block table per chip rather than per device? */
+ if (td->options & NAND_BBT_PERCHIP) {
+ //numblocks = (int)(this->chipsize >> this->bbt_erase_shift);
+ numblocks = ((int)(this->chipsize >> (10+this->pagecnt_shift)))/mtd->pageSizek;
+ /* Full device write or specific chip? */
+ if (chipsel == -1) {
+ nrchips = this->numchips;
+ } else {
+ nrchips = chipsel + 1;
+ chip = chipsel;
+ }
+ } else {
+ //numblocks = (int)(mtd->size >> this->bbt_erase_shift);
+ numblocks = ((int)(mtd->size >> (10+this->pagecnt_shift)))/mtd->pageSizek;
+ nrchips = 1;
+ }
+
+ /* Loop through the chips */
+ for (; chip < nrchips; chip++) {
+ /*
+ * There was already a version of the table, reuse the page
+ * This applies for absolute placement too, as we have the
+ * page nr. in td->pages.
+ */
+ if (td->pages[chip] != -1) {
+ page = td->pages[chip];
+ goto write;
+ }
+
+ /*
+ * Automatic placement of the bad block table. Search direction
+ * top -> down?
+ */
+ if (td->options & NAND_BBT_LASTBLOCK) {
+ startblock = numblocks * (chip + 1) - 1;
+ dir = -1;
+ } else {
+ startblock = chip * numblocks;
+ dir = 1;
+ }
+
+ for (i = 0; i < td->maxblocks; i++) {
+ int block = startblock + dir * i;
+ //printk("blockstatus=%x\n",((this->bbt[block >> 1] >> (2 * (block & 0x01))) & 0x0F));
+ //printk("block=%x, sht=%d\n",block,(4 * (block & 0x01)) & 0x0F);
+ /* Check, if the block is bad */
+ switch ((this->bbt[block >> 1] >>
+ (4 * (block & 0x01))) & 0x0F) {
+ case 0x01:
+ case 0x04:
+ case 0x05://case 0x07: case 0x0D: not exist for bad_fact+bad_wort
+ case 0x03://case 0x0B: case 0x0E: not exist for bad_fact+reserved
+ case 0x0C://case 0x02: case 0x08: not exist for good + reserved
+ case 0x0F://case 0x06: case 0x09: not exist for bad_wort+reserved
+ continue;
+ //case 0x00: case 0x0A: only good or reserved is used (so far no reserved)
+ }
+ page = block <<
+ //(this->bbt_erase_shift - this->page_shift);
+ this->pagecnt_shift;
+ /* Check, if the block is used by the mirror table */
+ if (!md || md->pages[chip] != page)
+ goto write;
+ }
+ pr_err("No space left to write bad block table\n");
+ return -ENOSPC;
+ write:
+
+ /* Set up shift count and masks for the flash table */
+ bits = td->options & NAND_BBT_NRBITS_MSK;
+ if (this->realplanenum)
+ bits<<=1;
+ msk[2] = ~rcode;
+ switch (bits) {
+ case 1: sft = 3; sftmsk = 0x07; msk[0] = 0x00; msk[1] = 0x01;
+ msk[3] = 0x01;
+ break;
+ case 2: sft = 2; sftmsk = 0x06; msk[0] = 0x00; msk[1] = 0x01;
+ msk[3] = 0x03;
+ break;
+ case 4: sft = 1; sftmsk = 0x04;
+ msk[0] = 0x00; msk[1] = 0x01; msk[2] = 0x2; msk[3] = 0x03;
+ msk[4] = 0x04; msk[5] = 0x05; msk[6] = 0x06; msk[7] = 0x07;
+ msk[8] = 0x08; msk[9] = 0x09; msk[10] = /*~rcode*/0x0a; msk[11] = 0x0b;
+ msk[12] = 0x0c; msk[13] = 0x0d; msk[14] = 0x0e; msk[15] = 0x0f;
+ break;
+ case 8: sft = 0; sftmsk = 0x00; msk[0] = 0x00; msk[1] = 0x0F;
+ msk[3] = 0xff;
+ break;
+ default: return -EINVAL;
+ }
+
+ bbtoffs = chip * (numblocks >> 2);
+ if (this->realplanenum)
+ bbtoffs = chip * (numblocks >> 1);
+
+ //to = ((loff_t)page) << this->page_shift;
+ to = ((loff_t) (page*mtd->pageSizek)) << 10;
+
+ /* Must we save the block contents? */
+ if (td->options & NAND_BBT_SAVECONTENT) {
+ /* Make it block aligned */printk("write bbt multi inlegal-----------------\n");
+ //to &= ~((loff_t)((1 << this->bbt_erase_shift) - 1));
+ to &= ~((loff_t)((mtd->erasesize) - 1));//danbbg
+ //len = 1 << this->bbt_erase_shift;
+ len = mtd->erasesize;
+ res = mtd_read(mtd, to, len, &retlen, buf);
+ if (res < 0) {
+ if (retlen != len) {
+ pr_info("nand_bbt: error reading block "
+ "for writing the bad block table\n");
+ return res;
+ }
+ pr_warn("nand_bbt: ECC error while reading "
+ "block for writing bad block table\n");
+ }
+ /* Read oob data */
+ //ops.ooblen = (len >> this->page_shift) * mtd->oobsize;
+ ops.ooblen = (mtd->pagecnt) * mtd->oobsize;
+ ops.oobbuf = &buf[len];
+ res = mtd_read_oob(mtd, to + mtd->writesize, &ops);
+ if (res < 0 || ops.oobretlen != ops.ooblen)
+ goto outerr;
+
+ /* Calc the byte offset in the buffer */
+ //pageoffs = page - (int)(to >> this->page_shift);
+ pageoffs = page - ((int)(to >> 10))/mtd->pageSizek;
+ //offs = pageoffs << this->page_shift;
+ offs = (pageoffs*mtd->pageSizek) << 10;
+ /* Preset the bbt area with 0xff */
+ memset(&buf[offs], 0xff, (size_t)(numblocks >> sft));
+ ooboffs = len + (pageoffs * mtd->oobsize);
+
+ } else if (td->options & NAND_BBT_NO_OOB) {
+ ooboffs = 0;
+ offs = td->len;
+ /* The version byte */
+ if (td->options & NAND_BBT_VERSION)
+ offs++;
+ /* Calc length */
+ len = (size_t)(numblocks >> sft);
+ len += offs;
+ /* Make it page aligned! */
+ len = ALIGN(len, mtd->writesize);
+ /* Preset the buffer with 0xff */
+ memset(buf, 0xff, len);
+ /* Pattern is located at the begin of first page */
+ memcpy(buf, td->pattern, td->len);
+ } else {
+ /* Calc length */
+ len = (size_t)(numblocks >> sft);
+ /* Make it page aligned! */
+ len = ALIGN(len, mtd->writesize);
+ if (len < mtd->writesize)
+ len = mtd->writesize;
+ /* Preset the buffer with 0xff */
+ memset(buf, 0xff, len +
+ //(len >> this->page_shift)* mtd->oobsize);
+ mtd->pagecnt* mtd->oobsize);
+ offs = 0;
+ ooboffs = len;
+ /* Pattern is located in oob area of first page */
+ memcpy(&buf[ooboffs + td->offs], td->pattern, td->len);
+ //printk("td->len=%d ooboffs=%d td->offs=%d\n", td->len, ooboffs, td->offs);
+ }
+
+ if (td->options & NAND_BBT_VERSION)
+ buf[ooboffs + td->veroffs] = td->version[chip];
+
+ /* Walk through the memory table */
+ for (i = 0; i < numblocks;) {
+ uint8_t dat;
+ dat = this->bbt[bbtoffs + (i >> 1)];
+ for (j = 0; j < 2; j++, i++) {
+ int sftcnt = (i << (3 - sft)) & sftmsk;
+ /* Do not store the reserved bbt blocks! */
+ /* dannier 2014/03/01 add a condition only retry and bbt blocks are not store
+ read retry command fail blocks are marked as reserved blk and need to be stored to flash */
+ if (i >= (numblocks - td->maxblocks - 4) && (dat&0xF)==0xa) {
+ //buf[offs + (i >> sft)] &= ~(msk[dat & 0x0F] << sftcnt);
+ //printk("offs + (i >> sft)=%d data=0x%x, dat=0x%x sft=%d\n",offs + (i >> sft), ~(msk[dat & 0x0F] << sftcnt), dat, sft);
+ } else
+ buf[offs + (i >> sft)] &= ~(msk[dat & 0x0F] << sftcnt);
+
+ dat >>= 4;
+ }
+ }
+ memcpy(&buf[mtd->realwritesize], buf, (numblocks>>1));
+//printk("print bbt write info ");print_nand_buffer(buf, 1536);
+/*printk("Bad block table written to 0x%012llx, version 0x%02X\n",
+ (unsigned long long)to, td->version[chip]);dump_stack();while(1);*/
+//printk("erase blk=%d, page=0x%x len=%d copy=%d\n", (unsigned int)(to>>this->bbt_erase_shift), page, len, (numblocks>>1));
memset(&einfo, 0, sizeof(einfo));
einfo.mtd = mtd;
einfo.addr = to;
- einfo.len = 1 << this->bbt_erase_shift;
+ //einfo.len = 1 << this->bbt_erase_shift;
+ einfo.len = mtd->erasesize;
res = nand_erase_nand(mtd, &einfo, 1);
+ //printk("erase ret=%d\n",res);
if (res < 0)
goto outerr;
@@ -849,7 +1700,154 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
return 0;
outerr:
- pr_warn("nand_bbt: error while writing bad block table %d\n", res);
+ pr_warn("nand_bbt: multi error while writing bad block table %d\n", res);
+ return res;
+}
+
+void copy_retry_info_to_buf(struct mtd_info *mtd, uint8_t *buf)
+{
+ /*uint8_t *bf;
+ struct nand_read_retry_param *rdtry = (struct nand_read_retry_param *)buf;*/
+ struct nand_chip *this = mtd->priv;
+
+ memcpy(buf, /*(uint8_t *)*/this->cur_chip, sizeof(chip_table[0])-16);
+ #ifdef RETRY_DEBUG
+ print_nand_buffer((uint8_t *)this->cur_chip, sizeof(chip_table[0]));
+ #endif
+
+ /*
+ memcpy(buf, "ANDROID!", 8);
+ rdtry->nand_id = FlashId;//this->nand_id;
+ //rdtry->nand_id_5th = this->nand_id_5th;
+ rdtry->eslc_reg_num = this->eslc_reg_num;
+ rdtry->total_retry_cnt = this->total_retry_cnt;
+ rdtry->retry_reg_num = this->retry_reg_num;
+ bf = buf + 28;
+ if (this->eslc_reg_num)
+ memcpy(bf, this->eslc_cmd, this->eslc_reg_num);
+ bf = buf + this->eslc_reg_num;
+ if (this->retry_reg_num)
+ memcpy(bf, this->retry_cmd, this->retry_reg_num * this->total_retry_cnt);
+ else
+ printk("no retry param is writen to retry table block\n");
+
+ printk("save rdtry to block\n");
+ print_nand_buffer(buf, 128);
+ */
+}
+
+/**
+ * write_hynix_table - [GENERIC] (Re)write the hynix table
+ *
+ * @mtd: MTD device structure
+ * @buf: temporary buffer
+ * @td: descriptor for the retry table block
+ * @md: descriptor for the bad block table mirror
+ * @chipsel: selector for a specific chip, -1 for all
+ *
+ * (Re)write the bad block table
+ *
+*/
+static int write_hynix_table(struct mtd_info *mtd, uint8_t *buf,
+ struct nand_bbt_descr *td, int chipsel)
+{
+ struct nand_chip *this = mtd->priv;
+ struct erase_info einfo;
+ int i, res, chip = 0;
+ int startblock, dir, page, numblocks, nrchips;
+ uint8_t rcode = td->reserved_block_code;
+ size_t len = 0;
+ loff_t to;
+ struct mtd_oob_ops ops;
+
+ ops.ooblen = mtd->oobsize;
+ ops.ooboffs = 0;
+ ops.datbuf = NULL;
+ ops.mode = MTD_OPS_PLACE_OOB;
+
+ if (!rcode)
+ rcode = 0xff;
+
+ //numblocks = (int)(this->chipsize >> this->bbt_erase_shift);
+ numblocks = ((int)(this->chipsize >> (10+this->pagecnt_shift)))/mtd->pageSizek;
+ nrchips = chipsel + 1;
+ chip = chipsel;
+
+ /* Loop through the chips */
+ for (; chip < nrchips; chip++) {
+
+ /* Search direction top -> down ? */
+ startblock = numblocks * (chip + 1) - 5;
+ dir = -1;
+
+ for (i = 0; i < td->maxblocks; i++) {
+ int block = startblock + dir * i;
+ /* Check, if the block is bad */
+ if (this->realplanenum) {
+ switch ((this->bbt[block >> 1] >>
+ (4 * (block & 0x01))) & 0x0F) {
+ case 0x01:
+ case 0x04:
+ case 0x05://case 0x07: case 0x0D: not exist for bad_fact+bad_wort
+ case 0x03://case 0x0B: case 0x0E: not exist for bad_fact+reserved
+ case 0x0C://case 0x02: case 0x08: not exist for good + reserved
+ case 0x0F://case 0x06: case 0x09: not exist for bad_wort+reserved
+ continue;
+ //case 0x00: case 0x0A: only good or reserved is used (so far no reserved)
+ }
+ } else {
+ switch ((this->bbt[block >> 2] >>
+ (2 * (block & 0x03))) & 0x03) {
+ case 0x01:
+ case 0x03:
+ continue;
+ }
+ }
+ //page = block << (this->bbt_erase_shift - this->page_shift);
+ page = block << this->pagecnt_shift;
+ goto write;
+ }
+ printk(KERN_ERR "No space left to write read retry table\n");
+ return -ENOSPC;
+ write:
+
+ //to = ((loff_t) page) << this->page_shift;
+ to = ((loff_t) (page*mtd->pageSizek)) << 10;
+ len = mtd->writesize;
+ /* Preset the buffer with 0xff */
+ //memset(buf, 0xff, len + (len >> this->page_shift)* mtd->oobsize);
+ memset(buf, 0xff, len + mtd->pagecnt* mtd->oobsize);
+ /* Pattern is located in oob area of first page */
+ memcpy(&buf[len], td->pattern, 10);
+
+ //------write signature into buf retry into--/
+ #ifdef RETRY_DEBUG
+ printk("save rdtry to page=0x%x\n", page);
+ #endif
+ copy_retry_info_to_buf(mtd, buf);
+
+ //------erase block-----------/
+ memset(&einfo, 0, sizeof(einfo));
+ einfo.mtd = mtd;
+ einfo.addr = to;
+ //einfo.len = 1 << this->bbt_erase_shift;
+ einfo.len = mtd->erasesize;
+ res = nand_erase_nand(mtd, &einfo, 1);
+ if (res < 0)
+ goto outerr;
+ printk("writing rdtry to nand flash and page addr is 0x%x, len=0x%x\n", page, len);
+ res = scan_write_bbt(mtd, to, len, buf, &buf[len]);
+ if (res < 0)
+ goto outerr;
+
+ /* Mark it as used */
+ td->pages[chip] = page;
+ }
+ return 0;
+
+ outerr:
+ printk(KERN_WARNING
+ "nand_bbt: Error while writing read retry table %d\n", res);
return res;
}
@@ -866,7 +1864,10 @@ static inline int nand_memory_bbt(struct mtd_info *mtd, struct nand_bbt_descr *b
struct nand_chip *this = mtd->priv;
bd->options &= ~NAND_BBT_SCANEMPTY;
- return create_bbt(mtd, this->buffers->databuf, bd, -1);
+ if (this->realplanenum)
+ return create_bbt_multi(mtd, this->buffers->databuf, bd, -1);
+ else
+ return create_bbt(mtd, this->buffers->databuf, bd, -1);
}
/**
@@ -939,8 +1940,19 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc
continue;
/* Create the table in memory by scanning the chip(s) */
- if (!(this->bbt_options & NAND_BBT_CREATE_EMPTY))
- create_bbt(mtd, buf, bd, chipsel);
+ if (!(this->bbt_options & NAND_BBT_CREATE_EMPTY)) {
+ //print_nand_register(mtd);
+ if (mtd->dwRdmz)
+ reset_nfc(mtd, NULL, 3);
+ //print_nand_register(mtd);
+
+ if (this->realplanenum)
+ create_bbt_multi(mtd, buf, bd, chipsel);
+ else
+ create_bbt(mtd, buf, bd, chipsel);
+
+
+ }
td->version[i] = 1;
if (md)
@@ -982,14 +1994,20 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc
/* Write the bad block table to the device? */
if ((writeops & 0x01) && (td->options & NAND_BBT_WRITE)) {
- res = write_bbt(mtd, buf, td, md, chipsel);
+ if (this->realplanenum)
+ res = write_bbt_multi(mtd, buf, td, md, chipsel);
+ else
+ res = write_bbt(mtd, buf, td, md, chipsel);
if (res < 0)
return res;
}
/* Write the mirror bad block table to the device? */
if ((writeops & 0x02) && md && (md->options & NAND_BBT_WRITE)) {
- res = write_bbt(mtd, buf, md, td, chipsel);
+ if (this->realplanenum)
+ res = write_bbt_multi(mtd, buf, md, td, chipsel);
+ else
+ res = write_bbt(mtd, buf, md, td, chipsel);
if (res < 0)
return res;
}
@@ -997,6 +2015,53 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc
return 0;
}
+static int check_retry_table(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *rd)
+{
+ int i, chips, chipsel, res = 0, need_save = 0;
+ struct nand_chip *this = mtd->priv;
+
+ /* Do we have a retry table per chip ? */
+ /* so far, use chip 0 retry param on chip 0 and chip 1 */
+ //chips = this->numchips;
+ chips = 1;
+ for (i = 0; i < chips; i++) {
+ /* Per chip */
+ chipsel = i;
+ if (rd->pages[i] == -1) {
+ goto create;
+ }
+ #ifdef RETRY_DEBUG
+ printk("read_abs_retry_table\n");
+ #endif
+ /* Read the retry table starting at a given page */
+ res = read_abs_retry_table(mtd, buf, rd, chipsel);
+ if (res == 0) {
+ if(this->cur_chip != NULL) {
+ this->select_chip(mtd, 0);
+ this->cur_chip->get_parameter(mtd, READ_RETRY_MODE);
+ this->select_chip(mtd, -1);
+ }
+ break;
+ }
+
+ create:
+ #ifdef RETRY_DEBUG
+ printk("create_hynix_table\n");
+ #endif
+ /* Create the table in memory by get feature or get otp cmd */
+ create_hynix_table(mtd, chipsel);
+
+ need_save = 1;
+
+ //printk("dannier write_hynix_table\n");
+ /* Write the retry block table to the device ? => leave it saved after bbt searched*/
+ /*res = write_hynix_table(mtd, buf, rd, chipsel);
+ if (res < 0)
+ return res;*/
+ }
+
+ return need_save;
+}
/**
* mark_bbt_regions - [GENERIC] mark the bad block table regions
* @mtd: MTD device structure
@@ -1014,10 +2079,12 @@ static void mark_bbt_region(struct mtd_info *mtd, struct nand_bbt_descr *td)
/* Do we have a bbt per chip? */
if (td->options & NAND_BBT_PERCHIP) {
chips = this->numchips;
- nrblocks = (int)(this->chipsize >> this->bbt_erase_shift);
+ //nrblocks = (int)(this->chipsize >> this->bbt_erase_shift);
+ nrblocks = ((int)(this->chipsize >> (10+this->pagecnt_shift)))/mtd->pageSizek;
} else {
chips = 1;
- nrblocks = (int)(mtd->size >> this->bbt_erase_shift);
+ //nrblocks = (int)(mtd->size >> this->bbt_erase_shift);
+ nrblocks = ((int)(mtd->size >> (10+this->pagecnt_shift)))/mtd->pageSizek;
}
for (i = 0; i < chips; i++) {
@@ -1025,19 +2092,25 @@ static void mark_bbt_region(struct mtd_info *mtd, struct nand_bbt_descr *td)
!(td->options & NAND_BBT_WRITE)) {
if (td->pages[i] == -1)
continue;
- block = td->pages[i] >> (this->bbt_erase_shift - this->page_shift);
+ //block = td->pages[i] >> (this->bbt_erase_shift - this->page_shift);
+ block = td->pages[i] >> (this->pagecnt_shift);
block <<= 1;
oldval = this->bbt[(block >> 3)];
newval = oldval | (0x2 << (block & 0x06));
this->bbt[(block >> 3)] = newval;
- if ((oldval != newval) && td->reserved_block_code)
- nand_update_bbt(mtd, (loff_t)block << (this->bbt_erase_shift - 1));
+ if ((oldval != newval) && 0/*td->reserved_block_code*/)
+ //nand_update_bbt(mtd, (loff_t)block << (this->bbt_erase_shift - 1));
+ nand_update_bbt(mtd, (loff_t)(block*mtd->pageSizek) << (10+this->pagecnt_shift-1));
continue;
}
update = 0;
- if (td->options & NAND_BBT_LASTBLOCK)
+ if (td->options & NAND_BBT_LASTBLOCK) {
block = ((i + 1) * nrblocks) - td->maxblocks;
- else
+ if (td->pattern[0] == 'r' && td->pattern[1] == 'e') {
+ block = ((i + 1) * nrblocks) - td->maxblocks - 4;
+ //printk("mark_bbt_region set blocks =%d ~ %d\n", block, block+3);
+ }
+ } else
block = i * nrblocks;
block <<= 1;
for (j = 0; j < td->maxblocks; j++) {
@@ -1053,12 +2126,83 @@ static void mark_bbt_region(struct mtd_info *mtd, struct nand_bbt_descr *td)
* new ones have been marked, then we need to update the stored
* bbts. This should only happen once.
*/
- if (update && td->reserved_block_code)
- nand_update_bbt(mtd, (loff_t)(block - 2) << (this->bbt_erase_shift - 1));
+ if (update && 0/*td->reserved_block_code*/)
+ //nand_update_bbt(mtd, (loff_t)(block - 2) << (this->bbt_erase_shift - 1));
+ nand_update_bbt(mtd, (loff_t)((block - 2)*mtd->pageSizek) << (10+this->pagecnt_shift-1));
}
}
/**
+ * mark_bbt_regions_multi - [GENERIC] mark the bad block table regions
+ * @mtd: MTD device structure
+ * @td: bad block table descriptor
+ *
+ * The bad block table regions are marked as "bad" to prevent accidental
+ * erasures / writes. The regions are identified by the mark 0x02.
+ */
+static void mark_bbt_region_multi(struct mtd_info *mtd, struct nand_bbt_descr *td)
+{
+ struct nand_chip *this = mtd->priv;
+ int i, j, chips, block, nrblocks, update;
+ uint8_t oldval, newval;
+
+ /* Do we have a bbt per chip? */
+ if (td->options & NAND_BBT_PERCHIP) {
+ chips = this->numchips;
+ //nrblocks = (int)(this->chipsize >> this->bbt_erase_shift);
+ nrblocks = ((int)(this->chipsize >> (10+this->pagecnt_shift)))/mtd->pageSizek;
+ } else {
+ chips = 1;
+ //nrblocks = (int)(mtd->size >> this->bbt_erase_shift);
+ nrblocks = ((int)(mtd->size >> (10+this->pagecnt_shift)))/mtd->pageSizek;
+ }
+
+ for (i = 0; i < chips; i++) {
+ if ((td->options & NAND_BBT_ABSPAGE) ||
+ !(td->options & NAND_BBT_WRITE)) {
+ if (td->pages[i] == -1)
+ continue;
+ //block = td->pages[i] >> (this->bbt_erase_shift - this->page_shift);
+ block = td->pages[i] >> (this->pagecnt_shift);
+ block <<= 2;
+ oldval = this->bbt[(block >> 3)];
+ newval = oldval | (0xA << (block & 0x04));
+ this->bbt[(block >> 3)] = newval;
+ if ((oldval != newval) && 0/*td->reserved_block_code*/)
+ //nand_update_bbt(mtd, (loff_t)block << (this->bbt_erase_shift - 2));
+ nand_update_bbt(mtd, (loff_t)(block*mtd->pageSizek) << (10+this->pagecnt_shift-2));
+ continue;
+ }
+ update = 0;
+ if (td->options & NAND_BBT_LASTBLOCK) {
+ block = ((i + 1) * nrblocks) - td->maxblocks;
+ if (td->pattern[0] == 'r' && td->pattern[1] == 'e') {
+ block = ((i + 1) * nrblocks) - td->maxblocks - 4;
+ //printk("mark_bbt_region set blocks =%d ~ %d\n", block, block+3);
+ }
+ } else
+ block = i * nrblocks;
+ block <<= 2;
+ for (j = 0; j < td->maxblocks; j++) {
+ oldval = this->bbt[(block >> 3)];
+ newval = oldval | (0xA << (block & 0x04));
+ this->bbt[(block >> 3)] = newval;
+ if (oldval != newval)
+ update = 1;
+ block += 4;
+ }
+ /*
+ * If we want reserved blocks to be recorded to flash, and some
+ * new ones have been marked, then we need to update the stored
+ * bbts. This should only happen once.
+ */
+ if (update && 0/*td->reserved_block_code*/)
+ //nand_update_bbt(mtd, (loff_t)(block - 4) << (this->bbt_erase_shift - 2));
+ nand_update_bbt(mtd, (loff_t)((block - 4)*mtd->pageSizek) << (10+this->pagecnt_shift-2));
+ }//print_nand_buffer(this->bbt, 2048);
+}
+
+/**
* verify_bbt_descr - verify the bad block description
* @mtd: MTD device structure
* @bd: the table to verify
@@ -1078,6 +2222,8 @@ static void verify_bbt_descr(struct mtd_info *mtd, struct nand_bbt_descr *bd)
pattern_len = bd->len;
bits = bd->options & NAND_BBT_NRBITS_MSK;
+ if (this->realplanenum)
+ bits<<=1;
BUG_ON((this->bbt_options & NAND_BBT_NO_OOB) &&
!(this->bbt_options & NAND_BBT_USE_FLASH));
@@ -1096,14 +2242,17 @@ static void verify_bbt_descr(struct mtd_info *mtd, struct nand_bbt_descr *bd)
}
if (bd->options & NAND_BBT_PERCHIP)
- table_size = this->chipsize >> this->bbt_erase_shift;
+ //table_size = this->chipsize >> this->bbt_erase_shift;
+ table_size = ((int)(this->chipsize >> (10+this->pagecnt_shift)))/mtd->pageSizek;
else
- table_size = mtd->size >> this->bbt_erase_shift;
+ //table_size = mtd->size >> this->bbt_erase_shift;
+ table_size = ((int)(mtd->size >> (10+this->pagecnt_shift)))/mtd->pageSizek;
table_size >>= 3;
table_size *= bits;
if (bd->options & NAND_BBT_NO_OOB)
table_size += pattern_len;
- BUG_ON(table_size > (1 << this->bbt_erase_shift));
+ //BUG_ON(table_size > (1 << this->bbt_erase_shift));
+ BUG_ON(table_size > mtd->erasesize);
}
/**
@@ -1118,15 +2267,21 @@ static void verify_bbt_descr(struct mtd_info *mtd, struct nand_bbt_descr *bd)
* The bad block table memory is allocated here. It must be freed by calling
* the nand_free_bbt function.
*/
+extern struct nand_read_retry_param chip_table[];
int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)
{
struct nand_chip *this = mtd->priv;
- int len, res = 0;
+ int len, res = 0, i, need_save = 0;
uint8_t *buf;
struct nand_bbt_descr *td = this->bbt_td;
struct nand_bbt_descr *md = this->bbt_md;
+
+ this->bbt_plane[1] = this->bbt_plane[0] = 0;
- len = mtd->size >> (this->bbt_erase_shift + 2);
+ //len = mtd->size >> (this->bbt_erase_shift + 2);
+ len = ((int)(mtd->size >> (10+this->pagecnt_shift+2)))/mtd->pageSizek;
+ if (this->realplanenum)
+ len <<=1;
/*
* Allocate memory (2bit per block) and clear the memory bad block
* table.
@@ -1135,6 +2290,8 @@ int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)
if (!this->bbt)
return -ENOMEM;
+ /* Clear the memory bad block table */
+ memset (this->bbt, 0x00, len);
/*
* If no primary table decriptor is given, scan the device to build a
* memory based bad block table.
@@ -1151,14 +2308,40 @@ int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)
verify_bbt_descr(mtd, md);
/* Allocate a temporary buffer for one eraseblock incl. oob */
- len = (1 << this->bbt_erase_shift);
- len += (len >> this->page_shift) * mtd->oobsize;
+ //len = (1 << this->bbt_erase_shift);
+ len = mtd->erasesize;
+ //len += (len >> this->page_shift) * mtd->oobsize;
+ len += (mtd->pagecnt) * mtd->oobsize;
buf = vmalloc(len);
if (!buf) {
kfree(this->bbt);
this->bbt = NULL;
return -ENOMEM;
}
+
+ if (mtd->dwRetry /*&& (mtd->id>>24) == NAND_MFR_HYNIX*/) {
+ for (i = 0; /*i < READ_RETRY_CHIP_NUM*/; i++) {
+ if (chip_table[i].nand_id == 0 && chip_table[i].nand_id_5th == 0)
+ break;
+ if (mtd->id == chip_table[i].nand_id && mtd->id2 == chip_table[i].nand_id_5th) {
+ #ifdef RETRY_DEBUG
+ printk("get retry table id 0x%x, 0x%x\n", chip_table[i].nand_id, chip_table[i].nand_id_5th);
+ #endif
+ this->cur_chip = &chip_table[i];
+ break;
+ }
+ }
+ if(this->cur_chip != NULL && chip_table[i].nand_id != 0) {
+ #ifdef RETRY_DEBUG
+ printk("search_hynix_retry_table\n");
+ #endif
+ search_hynix_retry_table(mtd, buf, this->retry_pattern);
+ #ifdef RETRY_DEBUG
+ printk("check_retry_table\n");
+ #endif
+ need_save = check_retry_table(mtd, buf, this->retry_pattern);
+ }
+ }
/* Is the bbt at a given page? */
if (td->options & NAND_BBT_ABSPAGE) {
@@ -1171,10 +2354,34 @@ int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)
if (res)
res = check_create(mtd, buf, bd);
+
+ if (mtd->dwRetry && this->cur_chip != NULL && need_save) {
+ //printk("dannier write_hynix_table\n");
+ /* Write the retry block table to the device ? */
+ res = write_hynix_table(mtd, buf, this->retry_pattern, 0);
+
+ //testing
+ //this->cur_chip->cur_try_times = 5;
+ }
+
+ /* Prevent the rdtry block regions from erasing / writing */
+ if (this->realplanenum)
+ mark_bbt_region_multi(mtd, this->retry_pattern);
+ else
+ mark_bbt_region(mtd, this->retry_pattern);
+
/* Prevent the bbt regions from erasing / writing */
- mark_bbt_region(mtd, td);
- if (md)
- mark_bbt_region(mtd, md);
+ if (this->realplanenum)
+ mark_bbt_region_multi(mtd, td);
+ else
+ mark_bbt_region(mtd, td);
+ if (md) {
+ if (this->realplanenum)
+ mark_bbt_region_multi(mtd, md);
+ else
+ mark_bbt_region(mtd, md);
+ }
+
vfree(buf);
return res;
@@ -1200,15 +2407,20 @@ int nand_update_bbt(struct mtd_info *mtd, loff_t offs)
return -EINVAL;
/* Allocate a temporary buffer for one eraseblock incl. oob */
- len = (1 << this->bbt_erase_shift);
- len += (len >> this->page_shift) * mtd->oobsize;
- buf = kmalloc(len, GFP_KERNEL);
- if (!buf)
+ //len = (1 << this->bbt_erase_shift);
+ len = mtd->erasesize;
+ //len += (len >> this->page_shift) * mtd->oobsize;
+ len += (mtd->pagecnt) * mtd->oobsize;
+ //buf = kmalloc(len, GFP_KERNEL);
+ buf = vmalloc(len);
+ if (!buf) {
+ printk(KERN_ERR "nand_update_bbt: Out of memory\n");
return -ENOMEM;
-
+ }
/* Do we have a bbt per chip? */
if (td->options & NAND_BBT_PERCHIP) {
- chip = (int)(offs >> this->chip_shift);
+ //chip = (int)(offs >> this->chip_shift);
+ chip = ((int)(offs >> (10+this->pagecnt_shift)))/(mtd->pageSizek*mtd->blkcnt);
chipsel = chip;
} else {
chip = 0;
@@ -1221,17 +2433,24 @@ int nand_update_bbt(struct mtd_info *mtd, loff_t offs)
/* Write the bad block table to the device? */
if (td->options & NAND_BBT_WRITE) {
- res = write_bbt(mtd, buf, td, md, chipsel);
+ if (this->realplanenum)
+ res = write_bbt_multi(mtd, buf, td, md, chipsel);
+ else
+ res = write_bbt(mtd, buf, td, md, chipsel);
if (res < 0)
goto out;
}
/* Write the mirror bad block table to the device? */
if (md && (md->options & NAND_BBT_WRITE)) {
- res = write_bbt(mtd, buf, md, td, chipsel);
+ if (this->realplanenum)
+ res = write_bbt_multi(mtd, buf, md, td, chipsel);
+ else
+ res = write_bbt(mtd, buf, md, td, chipsel);
}
out:
- kfree(buf);
+ vfree(buf);
+ //printk("nand_update_bbt free mem res=%d\n", res);
return res;
}
@@ -1307,6 +2526,7 @@ static struct nand_bbt_descr bbt_mirror_no_bbt_descr = {
static int nand_create_badblock_pattern(struct nand_chip *this)
{
struct nand_bbt_descr *bd;
+ //struct mtd_info *mtd = this->priv;
if (this->badblock_pattern) {
pr_warn("Bad block pattern already allocated; not replacing\n");
return -EINVAL;
@@ -1319,6 +2539,10 @@ static int nand_create_badblock_pattern(struct nand_chip *this)
bd->len = (this->options & NAND_BUSWIDTH_16) ? 2 : 1;
bd->pattern = scan_ff_pattern;
bd->options |= NAND_BBT_DYNAMICSTRUCT;
+ //if ((0xFF&(mtd->id>>24)) == 0x45 || (0xFF&(mtd->id>>24)) == NAND_MFR_HYNIX)
+ bd->options |= NAND_BBT_SCAN2NDPAGE;//All type of flash need to scan 2 page per block.
+ bd->page_offset[0] = this->page_offset[0];
+ bd->page_offset[1] = this->page_offset[1];
this->badblock_pattern = bd;
return 0;
}
@@ -1366,6 +2590,11 @@ int nand_default_bbt(struct mtd_info *mtd)
this->bbt_td = NULL;
this->bbt_md = NULL;
}
+
+ if (this->bbt_td->reserved_block_code && this->realplanenum) {
+ this->bbt_td->reserved_block_code = 0x5;
+ this->bbt_md->reserved_block_code = 0x5;
+ }
if (!this->badblock_pattern)
nand_create_badblock_pattern(this);
@@ -1379,30 +2608,113 @@ int nand_default_bbt(struct mtd_info *mtd)
* @offs: offset in the device
* @allowbbt: allow access to bad block table region
*/
-int nand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt)
+int nand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt, int allow_readfail)
{
struct nand_chip *this = mtd->priv;
int block;
uint8_t res;
/* Get block number * 2 */
- block = (int)(offs >> (this->bbt_erase_shift - 1));
+ //block = (int)(offs >> (this->bbt_erase_shift - 1));
+ block = ((int)(offs >> (10+this->pagecnt_shift - 1)))/mtd->pageSizek;
res = (this->bbt[block >> 3] >> (block & 0x06)) & 0x03;
- pr_debug("nand_isbad_bbt(): bbt info for offs 0x%08x: "
+ pr_debug("nand_isbad_bbt(): bbt info for offs 0x%08llx: "
"(block %d) 0x%02x\n",
- (unsigned int)offs, block >> 1, res);
+ offs, block >> 1, res);
switch ((int)res) {
case 0x00:
return 0;
case 0x01:
+ #if 0
+ if (allowbbt != 0xFF && this->state == FL_READY) {
+ struct erase_info einfo;
+ int res1 = 0;
+ memset(&einfo, 0, sizeof(einfo));
+ einfo.mtd = mtd;
+ einfo.addr = offs;
+ //einfo.len = (1 << this->bbt_erase_shift);
+ einfo.len = mtd->erasesize;
+ printk("einfo.addr is 0x%llx\n",einfo.addr);
+ printk("einfo.len is 0x%llx\n", einfo.len);
+ res1 = nand_erase_nand(mtd, &einfo, 0xFF);
+ if (res1 < 0)
+ printk("nand_erase_nand addr 0x%llx result is %d\n", einfo.addr, res1);
+ }
+ #endif
return 1;
case 0x02:
- return allowbbt ? 0 : 1;
+ if ((block>>1) < (mtd->blkcnt - 8)) {
+ if (allow_readfail)
+ return 0;
+ else
+ return 1;
+ } else
+ return allowbbt ? 0 : 1;
}
return 1;
}
+/**
+ * nand_isbad_bbt_multi - [NAND Interface] Check if a block is bad
+ * @mtd: MTD device structure
+ * @offs: offset in the device
+ * @allowbbt: allow access to bad block table region
+ */
+int nand_isbad_bbt_multi(struct mtd_info *mtd, loff_t offs, int allowbbt, int allow_readfail)
+{
+ struct nand_chip *this = mtd->priv;
+ int block;
+ uint8_t res;
+
+ /* Get block number * 4 */
+ //block = (int)(offs >> (this->bbt_erase_shift - 2));
+ block = ((int)(offs >> (10+this->pagecnt_shift - 2)))/mtd->pageSizek;
+ res = (this->bbt[block >> 3] >> (block & 0x4)) & 0x0F;
+
+ pr_debug("nand_isbad_bbt(): bbt info for offs 0x%08llx: "
+ "(block %d) 0x%02x\n",
+ offs, block >> 2, res);
+ /*printk("nand_isbad_bbt(): bbt info for offs 0x%08llx: "
+ "(block %d) 0x%02x\n",
+ offs, block >> 2, res);*/
+
+ switch ((int)res) {
+ case 0x00:
+ return 0;
+ case 0x01:
+ case 0x04:
+ case 0x05://1 or both 2 blocks worn out!
+ #if 0
+ if (allowbbt != 0xFF && this->state == FL_READY) {
+ struct erase_info einfo;
+ int res1 = 0;
+ memset(&einfo, 0, sizeof(einfo));
+ einfo.mtd = mtd;
+ einfo.addr = offs;
+ //einfo.len = (1 << this->bbt_erase_shift);
+ einfo.len = mtd->erasesize;
+ printk("einfo.addr is 0x%llx\n",einfo.addr);
+ printk("einfo.len is 0x%llx\n", einfo.len);
+ res1 = nand_erase_nand(mtd, &einfo, 0xFF);
+ if (res1 < 0)
+ printk("nand_erase_nand addr 0x%llx result is %d\n", einfo.addr, res1);
+ }
+ #endif
+ return 1;
+ case 0x0A://usually two block are reserved
+ if ((block>>2) < (mtd->blkcnt - 8)) {
+ if (allow_readfail)
+ return 0;
+ else
+ return 1;
+ } else
+ return allowbbt ? 0 : 1;
+ }
+ return 1;
+}
+
+
EXPORT_SYMBOL(nand_scan_bbt);
EXPORT_SYMBOL(nand_default_bbt);