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-rw-r--r--drivers/mtd/nand/diskonchip.c43
-rw-r--r--drivers/mtd/nand/fsl_elbc_nand.c92
-rw-r--r--drivers/mtd/nand/nand.c18
-rw-r--r--drivers/mtd/nand/nand_base.c141
-rw-r--r--drivers/mtd/nand/nand_bbt.c2
-rw-r--r--drivers/mtd/nand/nand_ecc.c7
-rw-r--r--drivers/mtd/nand/nand_ids.c3
-rw-r--r--drivers/mtd/nand/nand_util.c42
-rw-r--r--drivers/mtd/nand/s3c64xx.c12
9 files changed, 258 insertions, 102 deletions
diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c
index 4cba810..e9dc4d1 100644
--- a/drivers/mtd/nand/diskonchip.c
+++ b/drivers/mtd/nand/diskonchip.c
@@ -15,8 +15,6 @@
* converted to the generic Reed-Solomon library by Thomas Gleixner <tglx@linutronix.de>
*
* Interface to generic NAND code for M-Systems DiskOnChip devices
- *
- * $Id: diskonchip.c,v 1.55 2005/11/07 11:14:30 gleixner Exp $
*/
#include <common.h>
@@ -58,13 +56,6 @@ static unsigned long __initdata doc_locations[] = {
0xe0000, 0xe2000, 0xe4000, 0xe6000,
0xe8000, 0xea000, 0xec000, 0xee000,
#endif /* CONFIG_MTD_DOCPROBE_HIGH */
-#elif defined(__PPC__)
- 0xe4000000,
-#elif defined(CONFIG_MOMENCO_OCELOT)
- 0x2f000000,
- 0xff000000,
-#elif defined(CONFIG_MOMENCO_OCELOT_G) || defined (CONFIG_MOMENCO_OCELOT_C)
- 0xff000000,
#else
#warning Unknown architecture for DiskOnChip. No default probe locations defined
#endif
@@ -229,7 +220,7 @@ static int doc_ecc_decode(struct rs_control *rs, uint8_t *data, uint8_t *ecc)
}
}
/* If the parity is wrong, no rescue possible */
- return parity ? -1 : nerr;
+ return parity ? -EBADMSG : nerr;
}
static void DoC_Delay(struct doc_priv *doc, unsigned short cycles)
@@ -1044,7 +1035,7 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat,
WriteDOC(DOC_ECC_DIS, docptr, Mplus_ECCConf);
else
WriteDOC(DOC_ECC_DIS, docptr, ECCConf);
- if (no_ecc_failures && (ret == -1)) {
+ if (no_ecc_failures && (ret == -EBADMSG)) {
printk(KERN_ERR "suppressing ECC failure\n");
ret = 0;
}
@@ -1139,9 +1130,9 @@ static inline int __init nftl_partscan(struct mtd_info *mtd, struct mtd_partitio
goto out;
mh = (struct NFTLMediaHeader *)buf;
- mh->NumEraseUnits = le16_to_cpu(mh->NumEraseUnits);
- mh->FirstPhysicalEUN = le16_to_cpu(mh->FirstPhysicalEUN);
- mh->FormattedSize = le32_to_cpu(mh->FormattedSize);
+ le16_to_cpus(&mh->NumEraseUnits);
+ le16_to_cpus(&mh->FirstPhysicalEUN);
+ le32_to_cpus(&mh->FormattedSize);
printk(KERN_INFO " DataOrgID = %s\n"
" NumEraseUnits = %d\n"
@@ -1249,12 +1240,12 @@ static inline int __init inftl_partscan(struct mtd_info *mtd, struct mtd_partiti
doc->mh1_page = doc->mh0_page + (4096 >> this->page_shift);
mh = (struct INFTLMediaHeader *)buf;
- mh->NoOfBootImageBlocks = le32_to_cpu(mh->NoOfBootImageBlocks);
- mh->NoOfBinaryPartitions = le32_to_cpu(mh->NoOfBinaryPartitions);
- mh->NoOfBDTLPartitions = le32_to_cpu(mh->NoOfBDTLPartitions);
- mh->BlockMultiplierBits = le32_to_cpu(mh->BlockMultiplierBits);
- mh->FormatFlags = le32_to_cpu(mh->FormatFlags);
- mh->PercentUsed = le32_to_cpu(mh->PercentUsed);
+ le32_to_cpus(&mh->NoOfBootImageBlocks);
+ le32_to_cpus(&mh->NoOfBinaryPartitions);
+ le32_to_cpus(&mh->NoOfBDTLPartitions);
+ le32_to_cpus(&mh->BlockMultiplierBits);
+ le32_to_cpus(&mh->FormatFlags);
+ le32_to_cpus(&mh->PercentUsed);
printk(KERN_INFO " bootRecordID = %s\n"
" NoOfBootImageBlocks = %d\n"
@@ -1291,12 +1282,12 @@ static inline int __init inftl_partscan(struct mtd_info *mtd, struct mtd_partiti
/* Scan the partitions */
for (i = 0; (i < 4); i++) {
ip = &(mh->Partitions[i]);
- ip->virtualUnits = le32_to_cpu(ip->virtualUnits);
- ip->firstUnit = le32_to_cpu(ip->firstUnit);
- ip->lastUnit = le32_to_cpu(ip->lastUnit);
- ip->flags = le32_to_cpu(ip->flags);
- ip->spareUnits = le32_to_cpu(ip->spareUnits);
- ip->Reserved0 = le32_to_cpu(ip->Reserved0);
+ le32_to_cpus(&ip->virtualUnits);
+ le32_to_cpus(&ip->firstUnit);
+ le32_to_cpus(&ip->lastUnit);
+ le32_to_cpus(&ip->flags);
+ le32_to_cpus(&ip->spareUnits);
+ le32_to_cpus(&ip->Reserved0);
printk(KERN_INFO " PARTITION[%d] ->\n"
" virtualUnits = %d\n"
diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c
index 674c542..367c7d7 100644
--- a/drivers/mtd/nand/fsl_elbc_nand.c
+++ b/drivers/mtd/nand/fsl_elbc_nand.c
@@ -75,7 +75,7 @@ struct fsl_elbc_ctrl {
struct fsl_elbc_mtd *chips[MAX_BANKS];
/* device info */
- lbus83xx_t *regs;
+ fsl_lbus_t *regs;
u8 __iomem *addr; /* Address of assigned FCM buffer */
unsigned int page; /* Last page written to / read from */
unsigned int read_bytes; /* Number of bytes read during command */
@@ -95,7 +95,6 @@ static struct nand_ecclayout fsl_elbc_oob_sp_eccm0 = {
.eccbytes = 3,
.eccpos = {6, 7, 8},
.oobfree = { {0, 5}, {9, 7} },
- .oobavail = 12,
};
/* Small Page FLASH with FMR[ECCM] = 1 */
@@ -103,7 +102,6 @@ static struct nand_ecclayout fsl_elbc_oob_sp_eccm1 = {
.eccbytes = 3,
.eccpos = {8, 9, 10},
.oobfree = { {0, 5}, {6, 2}, {11, 5} },
- .oobavail = 12,
};
/* Large Page FLASH with FMR[ECCM] = 0 */
@@ -111,7 +109,6 @@ static struct nand_ecclayout fsl_elbc_oob_lp_eccm0 = {
.eccbytes = 12,
.eccpos = {6, 7, 8, 22, 23, 24, 38, 39, 40, 54, 55, 56},
.oobfree = { {1, 5}, {9, 13}, {25, 13}, {41, 13}, {57, 7} },
- .oobavail = 48,
};
/* Large Page FLASH with FMR[ECCM] = 1 */
@@ -119,7 +116,48 @@ static struct nand_ecclayout fsl_elbc_oob_lp_eccm1 = {
.eccbytes = 12,
.eccpos = {8, 9, 10, 24, 25, 26, 40, 41, 42, 56, 57, 58},
.oobfree = { {1, 7}, {11, 13}, {27, 13}, {43, 13}, {59, 5} },
- .oobavail = 48,
+};
+
+/*
+ * fsl_elbc_oob_lp_eccm* specify that LP NAND's OOB free area starts at offset
+ * 1, so we have to adjust bad block pattern. This pattern should be used for
+ * x8 chips only. So far hardware does not support x16 chips anyway.
+ */
+static u8 scan_ff_pattern[] = { 0xff, };
+
+static struct nand_bbt_descr largepage_memorybased = {
+ .options = 0,
+ .offs = 0,
+ .len = 1,
+ .pattern = scan_ff_pattern,
+};
+
+/*
+ * ELBC may use HW ECC, so that OOB offsets, that NAND core uses for bbt,
+ * interfere with ECC positions, that's why we implement our own descriptors.
+ * OOB {11, 5}, works for both SP and LP chips, with ECCM = 1 and ECCM = 0.
+ */
+static u8 bbt_pattern[] = {'B', 'b', 't', '0' };
+static u8 mirror_pattern[] = {'1', 't', 'b', 'B' };
+
+static struct nand_bbt_descr bbt_main_descr = {
+ .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE |
+ NAND_BBT_2BIT | NAND_BBT_VERSION,
+ .offs = 11,
+ .len = 4,
+ .veroffs = 15,
+ .maxblocks = 4,
+ .pattern = bbt_pattern,
+};
+
+static struct nand_bbt_descr bbt_mirror_descr = {
+ .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE |
+ NAND_BBT_2BIT | NAND_BBT_VERSION,
+ .offs = 11,
+ .len = 4,
+ .veroffs = 15,
+ .maxblocks = 4,
+ .pattern = mirror_pattern,
};
/*=================================*/
@@ -133,7 +171,7 @@ static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob)
struct nand_chip *chip = mtd->priv;
struct fsl_elbc_mtd *priv = chip->priv;
struct fsl_elbc_ctrl *ctrl = priv->ctrl;
- lbus83xx_t *lbc = ctrl->regs;
+ fsl_lbus_t *lbc = ctrl->regs;
int buf_num;
ctrl->page = page_addr;
@@ -173,7 +211,7 @@ static int fsl_elbc_run_command(struct mtd_info *mtd)
struct nand_chip *chip = mtd->priv;
struct fsl_elbc_mtd *priv = chip->priv;
struct fsl_elbc_ctrl *ctrl = priv->ctrl;
- lbus83xx_t *lbc = ctrl->regs;
+ fsl_lbus_t *lbc = ctrl->regs;
long long end_tick;
u32 ltesr;
@@ -223,7 +261,7 @@ static void fsl_elbc_do_read(struct nand_chip *chip, int oob)
{
struct fsl_elbc_mtd *priv = chip->priv;
struct fsl_elbc_ctrl *ctrl = priv->ctrl;
- lbus83xx_t *lbc = ctrl->regs;
+ fsl_lbus_t *lbc = ctrl->regs;
if (priv->page_size) {
out_be32(&lbc->fir,
@@ -257,7 +295,7 @@ static void fsl_elbc_cmdfunc(struct mtd_info *mtd, unsigned int command,
struct nand_chip *chip = mtd->priv;
struct fsl_elbc_mtd *priv = chip->priv;
struct fsl_elbc_ctrl *ctrl = priv->ctrl;
- lbus83xx_t *lbc = ctrl->regs;
+ fsl_lbus_t *lbc = ctrl->regs;
ctrl->use_mdr = 0;
@@ -595,7 +633,7 @@ static int fsl_elbc_wait(struct mtd_info *mtd, struct nand_chip *chip)
{
struct fsl_elbc_mtd *priv = chip->priv;
struct fsl_elbc_ctrl *ctrl = priv->ctrl;
- lbus83xx_t *lbc = ctrl->regs;
+ fsl_lbus_t *lbc = ctrl->regs;
if (ctrl->status != LTESR_CC)
return NAND_STATUS_FAIL;
@@ -655,13 +693,15 @@ static struct fsl_elbc_ctrl *elbc_ctrl;
static void fsl_elbc_ctrl_init(void)
{
- immap_t *im = (immap_t *)CFG_IMMR;
-
elbc_ctrl = kzalloc(sizeof(*elbc_ctrl), GFP_KERNEL);
if (!elbc_ctrl)
return;
- elbc_ctrl->regs = &im->lbus;
+#ifdef CONFIG_MPC85xx
+ elbc_ctrl->regs = (void *)CONFIG_SYS_MPC85xx_LBC_ADDR;
+#else
+ elbc_ctrl->regs = &((immap_t *)CONFIG_SYS_IMMR)->lbus;
+#endif
/* clear event registers */
out_be32(&elbc_ctrl->regs->ltesr, LTESR_NAND_MASK);
@@ -724,7 +764,12 @@ int board_nand_init(struct nand_chip *nand)
nand->waitfunc = fsl_elbc_wait;
/* set up nand options */
- nand->options = NAND_NO_READRDY | NAND_NO_AUTOINCR;
+ nand->bbt_td = &bbt_main_descr;
+ nand->bbt_md = &bbt_mirror_descr;
+
+ /* set up nand options */
+ nand->options = NAND_NO_READRDY | NAND_NO_AUTOINCR |
+ NAND_USE_FLASH_BBT;
nand->controller = &elbc_ctrl->controller;
nand->priv = priv;
@@ -732,6 +777,20 @@ int board_nand_init(struct nand_chip *nand)
nand->ecc.read_page = fsl_elbc_read_page;
nand->ecc.write_page = fsl_elbc_write_page;
+#ifdef CONFIG_FSL_ELBC_FMR
+ priv->fmr = CONFIG_FSL_ELBC_FMR;
+#else
+ priv->fmr = (15 << FMR_CWTO_SHIFT) | (2 << FMR_AL_SHIFT);
+
+ /*
+ * Hardware expects small page has ECCM0, large page has ECCM1
+ * when booting from NAND. Board config can override if not
+ * booting from NAND.
+ */
+ if (or & OR_FCM_PGS)
+ priv->fmr |= FMR_ECCM;
+#endif
+
/* If CS Base Register selects full hardware ECC then use it */
if ((br & BR_DECC) == BR_DECC_CHK_GEN) {
nand->ecc.mode = NAND_ECC_HW;
@@ -748,11 +807,10 @@ int board_nand_init(struct nand_chip *nand)
nand->ecc.mode = NAND_ECC_SOFT;
}
- priv->fmr = (15 << FMR_CWTO_SHIFT) | (2 << FMR_AL_SHIFT);
-
- /* adjust Option Register and ECC to match Flash page size */
+ /* Large-page-specific setup */
if (or & OR_FCM_PGS) {
priv->page_size = 1;
+ nand->badblock_pattern = &largepage_memorybased;
/* adjust ecc setup if needed */
if ((br & BR_DECC) == BR_DECC_CHK_GEN) {
diff --git a/drivers/mtd/nand/nand.c b/drivers/mtd/nand/nand.c
index ebd2acd..eeb19ff 100644
--- a/drivers/mtd/nand/nand.c
+++ b/drivers/mtd/nand/nand.c
@@ -24,15 +24,15 @@
#include <common.h>
#include <nand.h>
-#ifndef CFG_NAND_BASE_LIST
-#define CFG_NAND_BASE_LIST { CFG_NAND_BASE }
+#ifndef CONFIG_SYS_NAND_BASE_LIST
+#define CONFIG_SYS_NAND_BASE_LIST { CONFIG_SYS_NAND_BASE }
#endif
int nand_curr_device = -1;
-nand_info_t nand_info[CFG_MAX_NAND_DEVICE];
+nand_info_t nand_info[CONFIG_SYS_MAX_NAND_DEVICE];
-static struct nand_chip nand_chip[CFG_MAX_NAND_DEVICE];
-static ulong base_address[CFG_MAX_NAND_DEVICE] = CFG_NAND_BASE_LIST;
+static struct nand_chip nand_chip[CONFIG_SYS_MAX_NAND_DEVICE];
+static ulong base_address[CONFIG_SYS_MAX_NAND_DEVICE] = CONFIG_SYS_NAND_BASE_LIST;
static const char default_nand_name[] = "nand";
@@ -61,15 +61,15 @@ void nand_init(void)
{
int i;
unsigned int size = 0;
- for (i = 0; i < CFG_MAX_NAND_DEVICE; i++) {
+ for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++) {
nand_init_chip(&nand_info[i], &nand_chip[i], base_address[i]);
- size += nand_info[i].size;
+ size += nand_info[i].size / 1024;
if (nand_curr_device == -1)
nand_curr_device = i;
}
- printf("%u MiB\n", size / (1024 * 1024));
+ printf("%u MiB\n", size / 1024);
-#ifdef CFG_NAND_SELECT_DEVICE
+#ifdef CONFIG_SYS_NAND_SELECT_DEVICE
/*
* Select the chip in the board/cpu specific driver
*/
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 0913bb8..ba05b76 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -7,7 +7,7 @@
* Basic support for AG-AND chips is provided.
*
* Additional technical information is available on
- * http://www.linux-mtd.infradead.org/tech/nand.html
+ * http://www.linux-mtd.infradead.org/doc/nand.html
*
* Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
* 2002-2006 Thomas Gleixner (tglx@linutronix.de)
@@ -24,6 +24,7 @@
* if we have HW ecc support.
* The AG-AND chips have nice features for speed improvement,
* which are not supported yet. Read / program 4 pages in one go.
+ * BBT table is not serialized, has to be fixed
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -128,7 +129,7 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to,
static int nand_wait(struct mtd_info *mtd, struct nand_chip *this);
/*
- * For devices which display every fart in the system on a seperate LED. Is
+ * For devices which display every fart in the system on a separate LED. Is
* compiled away when LED support is disabled.
*/
/* XXX U-BOOT XXX */
@@ -412,6 +413,7 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
/* We write two bytes, so we dont have to mess with 16 bit
* access
*/
+ nand_get_device(chip, mtd, FL_WRITING);
ofs += mtd->oobsize;
chip->ops.len = chip->ops.ooblen = 2;
chip->ops.datbuf = NULL;
@@ -419,9 +421,11 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
chip->ops.ooboffs = chip->badblockpos & ~0x01;
ret = nand_do_write_oob(mtd, ofs, &chip->ops);
+ nand_release_device(mtd);
}
if (!ret)
mtd->ecc_stats.badblocks++;
+
return ret;
}
@@ -492,7 +496,7 @@ EXPORT_SYMBOL_GPL(nand_wait_ready);
void nand_wait_ready(struct mtd_info *mtd)
{
struct nand_chip *chip = mtd->priv;
- u32 timeo = (CFG_HZ * 20) / 1000;
+ u32 timeo = (CONFIG_SYS_HZ * 20) / 1000;
reset_timer();
@@ -831,9 +835,9 @@ static int nand_wait(struct mtd_info *mtd, struct nand_chip *this)
int state = this->state;
if (state == FL_ERASING)
- timeo = (CFG_HZ * 400) / 1000;
+ timeo = (CONFIG_SYS_HZ * 400) / 1000;
else
- timeo = (CFG_HZ * 20) / 1000;
+ timeo = (CONFIG_SYS_HZ * 20) / 1000;
if ((state == FL_ERASING) && (this->options & NAND_IS_AND))
this->cmdfunc(mtd, NAND_CMD_STATUS_MULTI, -1, -1);
@@ -911,7 +915,88 @@ static int nand_read_page_swecc(struct mtd_info *mtd, struct nand_chip *chip,
int stat;
stat = chip->ecc.correct(mtd, p, &ecc_code[i], &ecc_calc[i]);
- if (stat == -1)
+ if (stat < 0)
+ mtd->ecc_stats.failed++;
+ else
+ mtd->ecc_stats.corrected += stat;
+ }
+ return 0;
+}
+
+/**
+ * nand_read_subpage - [REPLACABLE] software ecc based sub-page read function
+ * @mtd: mtd info structure
+ * @chip: nand chip info structure
+ * @dataofs offset of requested data within the page
+ * @readlen data length
+ * @buf: buffer to store read data
+ */
+static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip, uint32_t data_offs, uint32_t readlen, uint8_t *bufpoi)
+{
+ int start_step, end_step, num_steps;
+ uint32_t *eccpos = chip->ecc.layout->eccpos;
+ uint8_t *p;
+ int data_col_addr, i, gaps = 0;
+ int datafrag_len, eccfrag_len, aligned_len, aligned_pos;
+ int busw = (chip->options & NAND_BUSWIDTH_16) ? 2 : 1;
+
+ /* Column address wihin the page aligned to ECC size (256bytes). */
+ start_step = data_offs / chip->ecc.size;
+ end_step = (data_offs + readlen - 1) / chip->ecc.size;
+ num_steps = end_step - start_step + 1;
+
+ /* Data size aligned to ECC ecc.size*/
+ datafrag_len = num_steps * chip->ecc.size;
+ eccfrag_len = num_steps * chip->ecc.bytes;
+
+ data_col_addr = start_step * chip->ecc.size;
+ /* If we read not a page aligned data */
+ if (data_col_addr != 0)
+ chip->cmdfunc(mtd, NAND_CMD_RNDOUT, data_col_addr, -1);
+
+ p = bufpoi + data_col_addr;
+ chip->read_buf(mtd, p, datafrag_len);
+
+ /* Calculate ECC */
+ for (i = 0; i < eccfrag_len ; i += chip->ecc.bytes, p += chip->ecc.size)
+ chip->ecc.calculate(mtd, p, &chip->buffers->ecccalc[i]);
+
+ /* The performance is faster if to position offsets
+ according to ecc.pos. Let make sure here that
+ there are no gaps in ecc positions */
+ for (i = 0; i < eccfrag_len - 1; i++) {
+ if (eccpos[i + start_step * chip->ecc.bytes] + 1 !=
+ eccpos[i + start_step * chip->ecc.bytes + 1]) {
+ gaps = 1;
+ break;
+ }
+ }
+ if (gaps) {
+ chip->cmdfunc(mtd, NAND_CMD_RNDOUT, mtd->writesize, -1);
+ chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
+ } else {
+ /* send the command to read the particular ecc bytes */
+ /* take care about buswidth alignment in read_buf */
+ aligned_pos = eccpos[start_step * chip->ecc.bytes] & ~(busw - 1);
+ aligned_len = eccfrag_len;
+ if (eccpos[start_step * chip->ecc.bytes] & (busw - 1))
+ aligned_len++;
+ if (eccpos[(start_step + num_steps) * chip->ecc.bytes] & (busw - 1))
+ aligned_len++;
+
+ chip->cmdfunc(mtd, NAND_CMD_RNDOUT, mtd->writesize + aligned_pos, -1);
+ chip->read_buf(mtd, &chip->oob_poi[aligned_pos], aligned_len);
+ }
+
+ for (i = 0; i < eccfrag_len; i++)
+ chip->buffers->ecccode[i] = chip->oob_poi[eccpos[i + start_step * chip->ecc.bytes]];
+
+ p = bufpoi + data_col_addr;
+ for (i = 0; i < eccfrag_len ; i += chip->ecc.bytes, p += chip->ecc.size) {
+ int stat;
+
+ stat = chip->ecc.correct(mtd, p, &chip->buffers->ecccode[i], &chip->buffers->ecccalc[i]);
+ if (stat < 0)
mtd->ecc_stats.failed++;
else
mtd->ecc_stats.corrected += stat;
@@ -996,7 +1081,7 @@ static int nand_read_page_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
chip->read_buf(mtd, oob, eccbytes);
stat = chip->ecc.correct(mtd, p, oob, NULL);
- if (stat == -1)
+ if (stat < 0)
mtd->ecc_stats.failed++;
else
mtd->ecc_stats.corrected += stat;
@@ -1116,6 +1201,8 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
/* Now read the page into the buffer */
if (unlikely(ops->mode == MTD_OOB_RAW))
ret = chip->ecc.read_page_raw(mtd, chip, bufpoi);
+ else if (!aligned && NAND_SUBPAGE_READ(chip) && !oob)
+ ret = chip->ecc.read_subpage(mtd, chip, col, bytes, bufpoi);
else
ret = chip->ecc.read_page(mtd, chip, bufpoi);
if (ret < 0)
@@ -1123,7 +1210,8 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
/* Transfer not aligned data */
if (!aligned) {
- chip->pagebuf = realpage;
+ if (!NAND_SUBPAGE_READ(chip) && !oob)
+ chip->pagebuf = realpage;
memcpy(buf, chip->buffers->databuf + col, bytes);
}
@@ -2193,13 +2281,14 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
erase_exit:
ret = instr->state == MTD_ERASE_DONE ? 0 : -EIO;
- /* Do call back function */
- if (!ret)
- mtd_erase_callback(instr);
/* Deselect and wake up anyone waiting on the device */
nand_release_device(mtd);
+ /* Do call back function */
+ if (!ret)
+ mtd_erase_callback(instr);
+
/*
* If BBT requires refresh and erase was successful, rewrite any
* selected bad block tables
@@ -2356,10 +2445,17 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
{
struct nand_flash_dev *type = NULL;
int i, dev_id, maf_idx;
+ int tmp_id, tmp_manf;
/* Select the device */
chip->select_chip(mtd, 0);
+ /*
+ * Reset the chip, required by some chips (e.g. Micron MT29FxGxxxxx)
+ * after power-up
+ */
+ chip->cmdfunc(mtd, NAND_CMD_RESET, -1, -1);
+
/* Send the command for reading device ID */
chip->cmdfunc(mtd, NAND_CMD_READID, 0x00, -1);
@@ -2367,6 +2463,26 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
*maf_id = chip->read_byte(mtd);
dev_id = chip->read_byte(mtd);
+ /* Try again to make sure, as some systems the bus-hold or other
+ * interface concerns can cause random data which looks like a
+ * possibly credible NAND flash to appear. If the two results do
+ * not match, ignore the device completely.
+ */
+
+ chip->cmdfunc(mtd, NAND_CMD_READID, 0x00, -1);
+
+ /* Read manufacturer and device IDs */
+
+ tmp_manf = chip->read_byte(mtd);
+ tmp_id = chip->read_byte(mtd);
+
+ if (tmp_manf != *maf_id || tmp_id != dev_id) {
+ printk(KERN_INFO "%s: second ID read did not match "
+ "%02x,%02x against %02x,%02x\n", __func__,
+ *maf_id, dev_id, tmp_manf, tmp_id);
+ return ERR_PTR(-ENODEV);
+ }
+
/* Lookup the flash id */
for (i = 0; nand_flash_ids[i].name != NULL; i++) {
if (dev_id == nand_flash_ids[i].id) {
@@ -2510,6 +2626,8 @@ int nand_scan_ident(struct mtd_info *mtd, int maxchips)
/* Check for a chip array */
for (i = 1; i < maxchips; i++) {
chip->select_chip(mtd, i);
+ /* See comment in nand_get_flash_type for reset */
+ chip->cmdfunc(mtd, NAND_CMD_RESET, -1, -1);
/* Send the command for reading device ID */
chip->cmdfunc(mtd, NAND_CMD_READID, 0x00, -1);
/* Read manufacturer and device IDs */
@@ -2630,6 +2748,7 @@ int nand_scan_tail(struct mtd_info *mtd)
chip->ecc.calculate = nand_calculate_ecc;
chip->ecc.correct = nand_correct_data;
chip->ecc.read_page = nand_read_page_swecc;
+ chip->ecc.read_subpage = nand_read_subpage;
chip->ecc.write_page = nand_write_page_swecc;
chip->ecc.read_oob = nand_read_oob_std;
chip->ecc.write_oob = nand_write_oob_std;
diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c
index b3b740d..d68a315f 100644
--- a/drivers/mtd/nand/nand_bbt.c
+++ b/drivers/mtd/nand/nand_bbt.c
@@ -6,8 +6,6 @@
*
* Copyright (C) 2004 Thomas Gleixner (tglx@linutronix.de)
*
- * $Id: nand_bbt.c,v 1.36 2005/11/07 11:14:30 gleixner Exp $
- *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
diff --git a/drivers/mtd/nand/nand_ecc.c b/drivers/mtd/nand/nand_ecc.c
index ee1f6cc..94923b9 100644
--- a/drivers/mtd/nand/nand_ecc.c
+++ b/drivers/mtd/nand/nand_ecc.c
@@ -9,8 +9,6 @@
*
* Copyright (C) 2006 Thomas Gleixner <tglx@linutronix.de>
*
- * $Id: nand_ecc.c,v 1.15 2005/11/07 11:14:30 gleixner Exp $
- *
* This file is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 or (at your option) any
@@ -47,7 +45,8 @@
#include <linux/mtd/nand_ecc.h>
#endif
-#include<linux/mtd/mtd.h>
+#include <asm/errno.h>
+#include <linux/mtd/mtd.h>
/*
* NAND-SPL has no sofware ECC for now, so don't include nand_calculate_ecc(),
@@ -206,7 +205,7 @@ int nand_correct_data(struct mtd_info *mtd, u_char *dat,
if(countbits(s0 | ((uint32_t)s1 << 8) | ((uint32_t)s2 <<16)) == 1)
return 1;
- return -1;
+ return -EBADMSG;
}
/* XXX U-BOOT XXX */
diff --git a/drivers/mtd/nand/nand_ids.c b/drivers/mtd/nand/nand_ids.c
index 2ff75c9..077c305 100644
--- a/drivers/mtd/nand/nand_ids.c
+++ b/drivers/mtd/nand/nand_ids.c
@@ -3,8 +3,6 @@
*
* Copyright (C) 2002 Thomas Gleixner (tglx@linutronix.de)
*
- * $Id: nand_ids.c,v 1.16 2005/11/07 11:14:31 gleixner Exp $
- *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
@@ -142,5 +140,6 @@ struct nand_manufacturers nand_manuf_ids[] = {
{NAND_MFR_STMICRO, "ST Micro"},
{NAND_MFR_HYNIX, "Hynix"},
{NAND_MFR_MICRON, "Micron"},
+ {NAND_MFR_AMD, "AMD"},
{0x0, "Unknown"}
};
diff --git a/drivers/mtd/nand/nand_util.c b/drivers/mtd/nand/nand_util.c
index 52b3d21..d86c987 100644
--- a/drivers/mtd/nand/nand_util.c
+++ b/drivers/mtd/nand/nand_util.c
@@ -78,9 +78,7 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts)
const char *mtd_device = meminfo->name;
struct mtd_oob_ops oob_opts;
struct nand_chip *chip = meminfo->priv;
- uint8_t buf[64];
- memset(buf, 0, sizeof(buf));
memset(&erase, 0, sizeof(erase));
memset(&oob_opts, 0, sizeof(oob_opts));
@@ -89,13 +87,9 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts)
erase.addr = opts->offset;
erase_length = opts->length;
-
cleanmarker.magic = cpu_to_je16 (JFFS2_MAGIC_BITMASK);
cleanmarker.nodetype = cpu_to_je16 (JFFS2_NODETYPE_CLEANMARKER);
cleanmarker.totlen = cpu_to_je32(8);
- cleanmarker.hdr_crc = cpu_to_je32(
- crc32_no_comp(0, (unsigned char *) &cleanmarker,
- sizeof(struct jffs2_unknown_node) - 4));
/* scrub option allows to erase badblock. To prevent internal
* check from erase() method, set block check method to dummy
@@ -154,23 +148,21 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts)
}
/* format for JFFS2 ? */
- if (opts->jffs2) {
-
- chip->ops.len = chip->ops.ooblen = 64;
+ if (opts->jffs2 && chip->ecc.layout->oobavail >= 8) {
+ chip->ops.ooblen = 8;
chip->ops.datbuf = NULL;
- chip->ops.oobbuf = buf;
- chip->ops.ooboffs = chip->badblockpos & ~0x01;
+ chip->ops.oobbuf = (uint8_t *)&cleanmarker;
+ chip->ops.ooboffs = 0;
+ chip->ops.mode = MTD_OOB_AUTO;
result = meminfo->write_oob(meminfo,
- erase.addr + meminfo->oobsize,
- &chip->ops);
+ erase.addr,
+ &chip->ops);
if (result != 0) {
printf("\n%s: MTD writeoob failure: %d\n",
- mtd_device, result);
+ mtd_device, result);
continue;
}
- else
- printf("%s: MTD writeoob at 0x%08x\n",mtd_device, erase.addr + meminfo->oobsize );
}
if (!opts->quiet) {
@@ -190,11 +182,11 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts)
percent_complete = percent;
printf("\rErasing at 0x%x -- %3d%% complete.",
- erase.addr, percent);
+ erase.addr, percent);
if (opts->jffs2 && result == 0)
- printf(" Cleanmarker written at 0x%x.",
- erase.addr);
+ printf(" Cleanmarker written at 0x%x.",
+ erase.addr);
}
}
}
@@ -495,11 +487,11 @@ int nand_write_skip_bad(nand_info_t *nand, size_t offset, size_t *length,
if (len_incl_bad == *length) {
rval = nand_write (nand, offset, length, buffer);
- if (rval != 0) {
+ if (rval != 0)
printf ("NAND write to offset %x failed %d\n",
offset, rval);
- return rval;
- }
+
+ return rval;
}
while (left_to_write > 0) {
@@ -565,11 +557,11 @@ int nand_read_skip_bad(nand_info_t *nand, size_t offset, size_t *length,
if (len_incl_bad == *length) {
rval = nand_read (nand, offset, length, buffer);
- if (rval != 0) {
+ if (rval != 0)
printf ("NAND read from offset %x failed %d\n",
offset, rval);
- return rval;
- }
+
+ return rval;
}
while (left_to_read > 0) {
diff --git a/drivers/mtd/nand/s3c64xx.c b/drivers/mtd/nand/s3c64xx.c
index 159fe76..edaf55a 100644
--- a/drivers/mtd/nand/s3c64xx.c
+++ b/drivers/mtd/nand/s3c64xx.c
@@ -141,7 +141,7 @@ static int s3c_nand_device_ready(struct mtd_info *mtdinfo)
return !!(readl(NFSTAT) & NFSTAT_RnB);
}
-#ifdef CFG_S3C_NAND_HWECC
+#ifdef CONFIG_SYS_S3C_NAND_HWECC
/*
* This function is called before encoding ecc codes to ready ecc engine.
* Written by jsgood
@@ -256,7 +256,7 @@ static int s3c_nand_correct_data(struct mtd_info *mtd, u_char *dat,
return ret;
}
-#endif /* CFG_S3C_NAND_HWECC */
+#endif /* CONFIG_SYS_S3C_NAND_HWECC */
/*
* Board-specific NAND initialization. The following members of the
@@ -297,7 +297,7 @@ int board_nand_init(struct nand_chip *nand)
nand->read_buf = nand_read_buf;
#endif
-#ifdef CFG_S3C_NAND_HWECC
+#ifdef CONFIG_SYS_S3C_NAND_HWECC
nand->ecc.hwctl = s3c_nand_enable_hwecc;
nand->ecc.calculate = s3c_nand_calculate_ecc;
nand->ecc.correct = s3c_nand_correct_data;
@@ -307,11 +307,11 @@ int board_nand_init(struct nand_chip *nand)
* board one day, it will get more complicated...
*/
nand->ecc.mode = NAND_ECC_HW;
- nand->ecc.size = CFG_NAND_ECCSIZE;
- nand->ecc.bytes = CFG_NAND_ECCBYTES;
+ nand->ecc.size = CONFIG_SYS_NAND_ECCSIZE;
+ nand->ecc.bytes = CONFIG_SYS_NAND_ECCBYTES;
#else
nand->ecc.mode = NAND_ECC_SOFT;
-#endif /* ! CFG_S3C_NAND_HWECC */
+#endif /* ! CONFIG_SYS_S3C_NAND_HWECC */
nand->priv = nand_cs + chip_n++;
generated by cgit v1.1 at 2024-11-29 14:10:52 +0000