diff options
Diffstat (limited to 'drivers/mtd/onenand/onenand_base.c')
| -rw-r--r-- | drivers/mtd/onenand/onenand_base.c | 1825 |
1 files changed, 1536 insertions, 289 deletions
diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index 30d6999e5f9..635ee002769 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -1,13 +1,19 @@ /* * linux/drivers/mtd/onenand/onenand_base.c * - * Copyright (C) 2005-2007 Samsung Electronics + * Copyright © 2005-2009 Samsung Electronics + * Copyright © 2007 Nokia Corporation + * * Kyungmin Park <kyungmin.park@samsung.com> * * Credits: * Adrian Hunter <ext-adrian.hunter@nokia.com>: * auto-placement support, read-while load support, various fixes - * Copyright (C) Nokia Corporation, 2007 + * + * Vishak G <vishak.g at samsung.com>, Rohit Hagargundgi <h.rohit at samsung.com> + * Flex-OneNAND support + * Amul Kumar Saha <amul.saha at samsung.com> + * OTP support * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -16,7 +22,8 @@ #include <linux/kernel.h> #include <linux/module.h> -#include <linux/init.h> +#include <linux/moduleparam.h> +#include <linux/slab.h> #include <linux/sched.h> #include <linux/delay.h> #include <linux/interrupt.h> @@ -27,6 +34,86 @@ #include <asm/io.h> +/* + * Multiblock erase if number of blocks to erase is 2 or more. + * Maximum number of blocks for simultaneous erase is 64. + */ +#define MB_ERASE_MIN_BLK_COUNT 2 +#define MB_ERASE_MAX_BLK_COUNT 64 + +/* Default Flex-OneNAND boundary and lock respectively */ +static int flex_bdry[MAX_DIES * 2] = { -1, 0, -1, 0 }; + +module_param_array(flex_bdry, int, NULL, 0400); +MODULE_PARM_DESC(flex_bdry, "SLC Boundary information for Flex-OneNAND" + "Syntax:flex_bdry=DIE_BDRY,LOCK,..." + "DIE_BDRY: SLC boundary of the die" + "LOCK: Locking information for SLC boundary" + " : 0->Set boundary in unlocked status" + " : 1->Set boundary in locked status"); + +/* Default OneNAND/Flex-OneNAND OTP options*/ +static int otp; + +module_param(otp, int, 0400); +MODULE_PARM_DESC(otp, "Corresponding behaviour of OneNAND in OTP" + "Syntax : otp=LOCK_TYPE" + "LOCK_TYPE : Keys issued, for specific OTP Lock type" + " : 0 -> Default (No Blocks Locked)" + " : 1 -> OTP Block lock" + " : 2 -> 1st Block lock" + " : 3 -> BOTH OTP Block and 1st Block lock"); + +/* + * flexonenand_oob_128 - oob info for Flex-Onenand with 4KB page + * For now, we expose only 64 out of 80 ecc bytes + */ +static struct nand_ecclayout flexonenand_oob_128 = { + .eccbytes = 64, + .eccpos = { + 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, + 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, + 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, + 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, + 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, + 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, + 102, 103, 104, 105 + }, + .oobfree = { + {2, 4}, {18, 4}, {34, 4}, {50, 4}, + {66, 4}, {82, 4}, {98, 4}, {114, 4} + } +}; + +/* + * onenand_oob_128 - oob info for OneNAND with 4KB page + * + * Based on specification: + * 4Gb M-die OneNAND Flash (KFM4G16Q4M, KFN8G16Q4M). Rev. 1.3, Apr. 2010 + * + * For eccpos we expose only 64 bytes out of 72 (see struct nand_ecclayout) + * + * oobfree uses the spare area fields marked as + * "Managed by internal ECC logic for Logical Sector Number area" + */ +static struct nand_ecclayout onenand_oob_128 = { + .eccbytes = 64, + .eccpos = { + 7, 8, 9, 10, 11, 12, 13, 14, 15, + 23, 24, 25, 26, 27, 28, 29, 30, 31, + 39, 40, 41, 42, 43, 44, 45, 46, 47, + 55, 56, 57, 58, 59, 60, 61, 62, 63, + 71, 72, 73, 74, 75, 76, 77, 78, 79, + 87, 88, 89, 90, 91, 92, 93, 94, 95, + 103, 104, 105, 106, 107, 108, 109, 110, 111, + 119 + }, + .oobfree = { + {2, 3}, {18, 3}, {34, 3}, {50, 3}, + {66, 3}, {82, 3}, {98, 3}, {114, 3} + } +}; + /** * onenand_oob_64 - oob info for large (2KB) page */ @@ -65,6 +152,14 @@ static const unsigned char ffchars[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 48 */ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 64 */ + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 80 */ + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 96 */ + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 112 */ + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 128 */ }; /** @@ -171,6 +266,70 @@ static int onenand_buffer_address(int dataram1, int sectors, int count) } /** + * flexonenand_block- For given address return block number + * @param this - OneNAND device structure + * @param addr - Address for which block number is needed + */ +static unsigned flexonenand_block(struct onenand_chip *this, loff_t addr) +{ + unsigned boundary, blk, die = 0; + + if (ONENAND_IS_DDP(this) && addr >= this->diesize[0]) { + die = 1; + addr -= this->diesize[0]; + } + + boundary = this->boundary[die]; + + blk = addr >> (this->erase_shift - 1); + if (blk > boundary) + blk = (blk + boundary + 1) >> 1; + + blk += die ? this->density_mask : 0; + return blk; +} + +inline unsigned onenand_block(struct onenand_chip *this, loff_t addr) +{ + if (!FLEXONENAND(this)) + return addr >> this->erase_shift; + return flexonenand_block(this, addr); +} + +/** + * flexonenand_addr - Return address of the block + * @this: OneNAND device structure + * @block: Block number on Flex-OneNAND + * + * Return address of the block + */ +static loff_t flexonenand_addr(struct onenand_chip *this, int block) +{ + loff_t ofs = 0; + int die = 0, boundary; + + if (ONENAND_IS_DDP(this) && block >= this->density_mask) { + block -= this->density_mask; + die = 1; + ofs = this->diesize[0]; + } + + boundary = this->boundary[die]; + ofs += (loff_t)block << (this->erase_shift - 1); + if (block > (boundary + 1)) + ofs += (loff_t)(block - boundary - 1) << (this->erase_shift - 1); + return ofs; +} + +loff_t onenand_addr(struct onenand_chip *this, int block) +{ + if (!FLEXONENAND(this)) + return (loff_t)block << this->erase_shift; + return flexonenand_addr(this, block); +} +EXPORT_SYMBOL(onenand_addr); + +/** * onenand_get_density - [DEFAULT] Get OneNAND density * @param dev_id OneNAND device ID * @@ -183,6 +342,22 @@ static inline int onenand_get_density(int dev_id) } /** + * flexonenand_region - [Flex-OneNAND] Return erase region of addr + * @param mtd MTD device structure + * @param addr address whose erase region needs to be identified + */ +int flexonenand_region(struct mtd_info *mtd, loff_t addr) +{ + int i; + + for (i = 0; i < mtd->numeraseregions; i++) + if (addr < mtd->eraseregions[i].offset) + break; + return i - 1; +} +EXPORT_SYMBOL(flexonenand_region); + +/** * onenand_command - [DEFAULT] Send command to OneNAND device * @param mtd MTD device structure * @param cmd the command to be sent @@ -207,17 +382,34 @@ static int onenand_command(struct mtd_info *mtd, int cmd, loff_t addr, size_t le page = -1; break; + case FLEXONENAND_CMD_PI_ACCESS: + /* addr contains die index */ + block = addr * this->density_mask; + page = -1; + break; + case ONENAND_CMD_ERASE: + case ONENAND_CMD_MULTIBLOCK_ERASE: + case ONENAND_CMD_ERASE_VERIFY: case ONENAND_CMD_BUFFERRAM: case ONENAND_CMD_OTP_ACCESS: - block = (int) (addr >> this->erase_shift); + block = onenand_block(this, addr); page = -1; break; - default: - block = (int) (addr >> this->erase_shift); - page = (int) (addr >> this->page_shift); + case FLEXONENAND_CMD_READ_PI: + cmd = ONENAND_CMD_READ; + block = addr * this->density_mask; + page = 0; + break; + default: + block = onenand_block(this, addr); + if (FLEXONENAND(this)) + page = (int) (addr - onenand_addr(this, block))>>\ + this->page_shift; + else + page = (int) (addr >> this->page_shift); if (ONENAND_IS_2PLANE(this)) { /* Make the even block number */ block &= ~1; @@ -236,7 +428,7 @@ static int onenand_command(struct mtd_info *mtd, int cmd, loff_t addr, size_t le value = onenand_bufferram_address(this, block); this->write_word(value, this->base + ONENAND_REG_START_ADDRESS2); - if (ONENAND_IS_2PLANE(this)) + if (ONENAND_IS_2PLANE(this) || ONENAND_IS_4KB_PAGE(this)) /* It is always BufferRAM0 */ ONENAND_SET_BUFFERRAM0(this); else @@ -258,13 +450,18 @@ static int onenand_command(struct mtd_info *mtd, int cmd, loff_t addr, size_t le if (page != -1) { /* Now we use page size operation */ - int sectors = 4, count = 4; + int sectors = 0, count = 0; int dataram; switch (cmd) { + case FLEXONENAND_CMD_RECOVER_LSB: case ONENAND_CMD_READ: case ONENAND_CMD_READOOB: - dataram = ONENAND_SET_NEXT_BUFFERRAM(this); + if (ONENAND_IS_4KB_PAGE(this)) + /* It is always BufferRAM0 */ + dataram = ONENAND_SET_BUFFERRAM0(this); + else + dataram = ONENAND_SET_NEXT_BUFFERRAM(this); break; default: @@ -293,6 +490,30 @@ static int onenand_command(struct mtd_info *mtd, int cmd, loff_t addr, size_t le } /** + * onenand_read_ecc - return ecc status + * @param this onenand chip structure + */ +static inline int onenand_read_ecc(struct onenand_chip *this) +{ + int ecc, i, result = 0; + + if (!FLEXONENAND(this) && !ONENAND_IS_4KB_PAGE(this)) + return this->read_word(this->base + ONENAND_REG_ECC_STATUS); + + for (i = 0; i < 4; i++) { + ecc = this->read_word(this->base + ONENAND_REG_ECC_STATUS + i*2); + if (likely(!ecc)) + continue; + if (ecc & FLEXONENAND_UNCORRECTABLE_ERROR) + return ONENAND_ECC_2BIT_ALL; + else + result = ONENAND_ECC_1BIT_ALL; + } + + return result; +} + +/** * onenand_wait - [DEFAULT] wait until the command is done * @param mtd MTD device structure * @param state state to select the max. timeout value @@ -317,7 +538,7 @@ static int onenand_wait(struct mtd_info *mtd, int state) if (interrupt & flags) break; - if (state != FL_READING) + if (state != FL_READING && state != FL_PREPARING_ERASE) cond_resched(); } /* To get correct interrupt status in timeout case */ @@ -331,28 +552,43 @@ static int onenand_wait(struct mtd_info *mtd, int state) * power off recovery (POR) test, it should read ECC status first */ if (interrupt & ONENAND_INT_READ) { - int ecc = this->read_word(this->base + ONENAND_REG_ECC_STATUS); + int ecc = onenand_read_ecc(this); if (ecc) { if (ecc & ONENAND_ECC_2BIT_ALL) { - printk(KERN_ERR "onenand_wait: ECC error = 0x%04x\n", ecc); + printk(KERN_ERR "%s: ECC error = 0x%04x\n", + __func__, ecc); mtd->ecc_stats.failed++; return -EBADMSG; } else if (ecc & ONENAND_ECC_1BIT_ALL) { - printk(KERN_INFO "onenand_wait: correctable ECC error = 0x%04x\n", ecc); + printk(KERN_DEBUG "%s: correctable ECC error = 0x%04x\n", + __func__, ecc); mtd->ecc_stats.corrected++; } } } else if (state == FL_READING) { - printk(KERN_ERR "onenand_wait: read timeout! ctrl=0x%04x intr=0x%04x\n", ctrl, interrupt); + printk(KERN_ERR "%s: read timeout! ctrl=0x%04x intr=0x%04x\n", + __func__, ctrl, interrupt); + return -EIO; + } + + if (state == FL_PREPARING_ERASE && !(interrupt & ONENAND_INT_ERASE)) { + printk(KERN_ERR "%s: mb erase timeout! ctrl=0x%04x intr=0x%04x\n", + __func__, ctrl, interrupt); + return -EIO; + } + + if (!(interrupt & ONENAND_INT_MASTER)) { + printk(KERN_ERR "%s: timeout! ctrl=0x%04x intr=0x%04x\n", + __func__, ctrl, interrupt); return -EIO; } /* If there's controller error, it's a real error */ if (ctrl & ONENAND_CTRL_ERROR) { - printk(KERN_ERR "onenand_wait: controller error = 0x%04x\n", - ctrl); + printk(KERN_ERR "%s: controller error = 0x%04x\n", + __func__, ctrl); if (ctrl & ONENAND_CTRL_LOCK) - printk(KERN_ERR "onenand_wait: it's locked error.\n"); + printk(KERN_ERR "%s: it's locked error.\n", __func__); return -EIO; } @@ -656,7 +892,7 @@ static int onenand_check_bufferram(struct mtd_info *mtd, loff_t addr) if (found && ONENAND_IS_DDP(this)) { /* Select DataRAM for DDP */ - int block = (int) (addr >> this->erase_shift); + int block = onenand_block(this, addr); int value = onenand_bufferram_address(this, block); this->write_word(value, this->base + ONENAND_REG_START_ADDRESS2); } @@ -740,6 +976,8 @@ static int onenand_get_device(struct mtd_info *mtd, int new_state) if (this->state == FL_READY) { this->state = new_state; spin_unlock(&this->chip_lock); + if (new_state != FL_PM_SUSPENDED && this->enable) + this->enable(mtd); break; } if (new_state == FL_PM_SUSPENDED) { @@ -766,6 +1004,8 @@ static void onenand_release_device(struct mtd_info *mtd) { struct onenand_chip *this = mtd->priv; + if (this->state != FL_PM_SUSPENDED && this->disable) + this->disable(mtd); /* Release the chip */ spin_lock(&this->chip_lock); this->state = FL_READY; @@ -774,7 +1014,7 @@ static void onenand_release_device(struct mtd_info *mtd) } /** - * onenand_transfer_auto_oob - [Internal] oob auto-placement transfer + * onenand_transfer_auto_oob - [INTERN] oob auto-placement transfer * @param mtd MTD device structure * @param buf destination address * @param column oob offset to read from @@ -816,6 +1056,155 @@ static int onenand_transfer_auto_oob(struct mtd_info *mtd, uint8_t *buf, int col } /** + * onenand_recover_lsb - [Flex-OneNAND] Recover LSB page data + * @param mtd MTD device structure + * @param addr address to recover + * @param status return value from onenand_wait / onenand_bbt_wait + * + * MLC NAND Flash cell has paired pages - LSB page and MSB page. LSB page has + * lower page address and MSB page has higher page address in paired pages. + * If power off occurs during MSB page program, the paired LSB page data can + * become corrupt. LSB page recovery read is a way to read LSB page though page + * data are corrupted. When uncorrectable error occurs as a result of LSB page + * read after power up, issue LSB page recovery read. + */ +static int onenand_recover_lsb(struct mtd_info *mtd, loff_t addr, int status) +{ + struct onenand_chip *this = mtd->priv; + int i; + + /* Recovery is only for Flex-OneNAND */ + if (!FLEXONENAND(this)) + return status; + + /* check if we failed due to uncorrectable error */ + if (!mtd_is_eccerr(status) && status != ONENAND_BBT_READ_ECC_ERROR) + return status; + + /* check if address lies in MLC region */ + i = flexonenand_region(mtd, addr); + if (mtd->eraseregions[i].erasesize < (1 << this->erase_shift)) + return status; + + /* We are attempting to reread, so decrement stats.failed + * which was incremented by onenand_wait due to read failure + */ + printk(KERN_INFO "%s: Attempting to recover from uncorrectable read\n", + __func__); + mtd->ecc_stats.failed--; + + /* Issue the LSB page recovery command */ + this->command(mtd, FLEXONENAND_CMD_RECOVER_LSB, addr, this->writesize); + return this->wait(mtd, FL_READING); +} + +/** + * onenand_mlc_read_ops_nolock - MLC OneNAND read main and/or out-of-band + * @param mtd MTD device structure + * @param from offset to read from + * @param ops: oob operation description structure + * + * MLC OneNAND / Flex-OneNAND has 4KB page size and 4KB dataram. + * So, read-while-load is not present. + */ +static int onenand_mlc_read_ops_nolock(struct mtd_info *mtd, loff_t from, + struct mtd_oob_ops *ops) +{ + struct onenand_chip *this = mtd->priv; + struct mtd_ecc_stats stats; + size_t len = ops->len; + size_t ooblen = ops->ooblen; + u_char *buf = ops->datbuf; + u_char *oobbuf = ops->oobbuf; + int read = 0, column, thislen; + int oobread = 0, oobcolumn, thisooblen, oobsize; + int ret = 0; + int writesize = this->writesize; + + pr_debug("%s: from = 0x%08x, len = %i\n", __func__, (unsigned int)from, + (int)len); + + if (ops->mode == MTD_OPS_AUTO_OOB) + oobsize = this->ecclayout->oobavail; + else + oobsize = mtd->oobsize; + + oobcolumn = from & (mtd->oobsize - 1); + + /* Do not allow reads past end of device */ + if (from + len > mtd->size) { + printk(KERN_ERR "%s: Attempt read beyond end of device\n", + __func__); + ops->retlen = 0; + ops->oobretlen = 0; + return -EINVAL; + } + + stats = mtd->ecc_stats; + + while (read < len) { + cond_resched(); + + thislen = min_t(int, writesize, len - read); + + column = from & (writesize - 1); + if (column + thislen > writesize) + thislen = writesize - column; + + if (!onenand_check_bufferram(mtd, from)) { + this->command(mtd, ONENAND_CMD_READ, from, writesize); + + ret = this->wait(mtd, FL_READING); + if (unlikely(ret)) + ret = onenand_recover_lsb(mtd, from, ret); + onenand_update_bufferram(mtd, from, !ret); + if (mtd_is_eccerr(ret)) + ret = 0; + if (ret) + break; + } + + this->read_bufferram(mtd, ONENAND_DATARAM, buf, column, thislen); + if (oobbuf) { + thisooblen = oobsize - oobcolumn; + thisooblen = min_t(int, thisooblen, ooblen - oobread); + + if (ops->mode == MTD_OPS_AUTO_OOB) + onenand_transfer_auto_oob(mtd, oobbuf, oobcolumn, thisooblen); + else + this->read_bufferram(mtd, ONENAND_SPARERAM, oobbuf, oobcolumn, thisooblen); + oobread += thisooblen; + oobbuf += thisooblen; + oobcolumn = 0; + } + + read += thislen; + if (read == len) + break; + + from += thislen; + buf += thislen; + } + + /* + * Return success, if no ECC failures, else -EBADMSG + * fs driver will take care of that, because + * retlen == desired len and result == -EBADMSG + */ + ops->retlen = read; + ops->oobretlen = oobread; + + if (ret) + return ret; + + if (mtd->ecc_stats.failed - stats.failed) + return -EBADMSG; + + /* return max bitflips per ecc step; ONENANDs correct 1 bit only */ + return mtd->ecc_stats.corrected != stats.corrected ? 1 : 0; +} + +/** * onenand_read_ops_nolock - [OneNAND Interface] OneNAND read main and/or out-of-band * @param mtd MTD device structure * @param from offset to read from @@ -837,9 +1226,10 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from, int ret = 0, boundary = 0; int writesize = this->writesize; - DEBUG(MTD_DEBUG_LEVEL3, "onenand_read_ops_nolock: from = 0x%08x, len = %i\n", (unsigned int) from, (int) len); + pr_debug("%s: from = 0x%08x, len = %i\n", __func__, (unsigned int)from, + (int)len); - if (ops->mode == MTD_OOB_AUTO) + if (ops->mode == MTD_OPS_AUTO_OOB) oobsize = this->ecclayout->oobavail; else oobsize = mtd->oobsize; @@ -848,7 +1238,8 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from, /* Do not allow reads past end of device */ if ((from + len) > mtd->size) { - printk(KERN_ERR "onenand_read_ops_nolock: Attempt read beyond end of device\n"); + printk(KERN_ERR "%s: Attempt read beyond end of device\n", + __func__); ops->retlen = 0; ops->oobretlen = 0; return -EINVAL; @@ -864,7 +1255,7 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from, this->command(mtd, ONENAND_CMD_READ, from, writesize); ret = this->wait(mtd, FL_READING); onenand_update_bufferram(mtd, from, !ret); - if (ret == -EBADMSG) + if (mtd_is_eccerr(ret)) ret = 0; } } @@ -882,7 +1273,7 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from, /* * Chip boundary handling in DDP * Now we issued chip 1 read and pointed chip 1 - * bufferam so we have to point chip 0 bufferam. + * bufferram so we have to point chip 0 bufferram. */ if (ONENAND_IS_DDP(this) && unlikely(from == (this->chipsize >> 1))) { @@ -900,7 +1291,7 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from, thisooblen = oobsize - oobcolumn; thisooblen = min_t(int, thisooblen, ooblen - oobread); - if (ops->mode == MTD_OOB_AUTO) + if (ops->mode == MTD_OPS_AUTO_OOB) onenand_transfer_auto_oob(mtd, oobbuf, oobcolumn, thisooblen); else this->read_bufferram(mtd, ONENAND_SPARERAM, oobbuf, oobcolumn, thisooblen); @@ -924,7 +1315,7 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from, /* Now wait for load */ ret = this->wait(mtd, FL_READING); onenand_update_bufferram(mtd, from, !ret); - if (ret == -EBADMSG) + if (mtd_is_eccerr(ret)) ret = 0; } @@ -942,7 +1333,8 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from, if (mtd->ecc_stats.failed - stats.failed) return -EBADMSG; - return mtd->ecc_stats.corrected - stats.corrected ? -EUCLEAN : 0; + /* return max bitflips per ecc step; ONENANDs correct 1 bit only */ + return mtd->ecc_stats.corrected != stats.corrected ? 1 : 0; } /** @@ -960,18 +1352,19 @@ static int onenand_read_oob_nolock(struct mtd_info *mtd, loff_t from, struct mtd_ecc_stats stats; int read = 0, thislen, column, oobsize; size_t len = ops->ooblen; - mtd_oob_mode_t mode = ops->mode; + unsigned int mode = ops->mode; u_char *buf = ops->oobbuf; - int ret = 0; + int ret = 0, readcmd; from += ops->ooboffs; - DEBUG(MTD_DEBUG_LEVEL3, "onenand_read_oob_nolock: from = 0x%08x, len = %i\n", (unsigned int) from, (int) len); + pr_debug("%s: from = 0x%08x, len = %i\n", __func__, (unsigned int)from, + (int)len); /* Initialize return length value */ ops->oobretlen = 0; - if (mode == MTD_OOB_AUTO) + if (mode == MTD_OPS_AUTO_OOB) oobsize = this->ecclayout->oobavail; else oobsize = mtd->oobsize; @@ -979,7 +1372,8 @@ static int onenand_read_oob_nolock(struct mtd_info *mtd, loff_t from, column = from & (mtd->oobsize - 1); if (unlikely(column >= oobsize)) { - printk(KERN_ERR "onenand_read_oob_nolock: Attempted to start read outside oob\n"); + printk(KERN_ERR "%s: Attempted to start read outside oob\n", + __func__); return -EINVAL; } @@ -987,29 +1381,36 @@ static int onenand_read_oob_nolock(struct mtd_info *mtd, loff_t from, if (unlikely(from >= mtd->size || column + len > ((mtd->size >> this->page_shift) - (from >> this->page_shift)) * oobsize)) { - printk(KERN_ERR "onenand_read_oob_nolock: Attempted to read beyond end of device\n"); + printk(KERN_ERR "%s: Attempted to read beyond end of device\n", + __func__); return -EINVAL; } stats = mtd->ecc_stats; + readcmd = ONENAND_IS_4KB_PAGE(this) ? ONENAND_CMD_READ : ONENAND_CMD_READOOB; + while (read < len) { cond_resched(); thislen = oobsize - column; thislen = min_t(int, thislen, len); - this->command(mtd, ONENAND_CMD_READOOB, from, mtd->oobsize); + this->command(mtd, readcmd, from, mtd->oobsize); onenand_update_bufferram(mtd, from, 0); ret = this->wait(mtd, FL_READING); - if (ret && ret != -EBADMSG) { - printk(KERN_ERR "onenand_read_oob_nolock: read failed = 0x%x\n", ret); + if (unlikely(ret)) + ret = onenand_recover_lsb(mtd, from, ret); + + if (ret && !mtd_is_eccerr(ret)) { + printk(KERN_ERR "%s: read failed = 0x%x\n", + __func__, ret); break; } - if (mode == MTD_OOB_AUTO) + if (mode == MTD_OPS_AUTO_OOB) onenand_transfer_auto_oob(mtd, buf, column, thislen); else this->read_bufferram(mtd, ONENAND_SPARERAM, buf, column, thislen); @@ -1053,6 +1454,7 @@ static int onenand_read_oob_nolock(struct mtd_info *mtd, loff_t from, static int onenand_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf) { + struct onenand_chip *this = mtd->priv; struct mtd_oob_ops ops = { .len = len, .ooblen = 0, @@ -1062,7 +1464,9 @@ static int onenand_read(struct mtd_info *mtd, loff_t from, size_t len, int ret; onenand_get_device(mtd, FL_READING); - ret = onenand_read_ops_nolock(mtd, from, &ops); + ret = ONENAND_IS_4KB_PAGE(this) ? + onenand_mlc_read_ops_nolock(mtd, from, &ops) : + onenand_read_ops_nolock(mtd, from, &ops); onenand_release_device(mtd); *retlen = ops.retlen; @@ -1080,13 +1484,14 @@ static int onenand_read(struct mtd_info *mtd, loff_t from, size_t len, static int onenand_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops) { + struct onenand_chip *this = mtd->priv; int ret; switch (ops->mode) { - case MTD_OOB_PLACE: - case MTD_OOB_AUTO: + case MTD_OPS_PLACE_OOB: + case MTD_OPS_AUTO_OOB: break; - case MTD_OOB_RAW: + case MTD_OPS_RAW: /* Not implemented yet */ default: return -EINVAL; @@ -1094,7 +1499,9 @@ static int onenand_read_oob(struct mtd_info *mtd, loff_t from, onenand_get_device(mtd, FL_READING); if (ops->datbuf) - ret = onenand_read_ops_nolock(mtd, from, ops); + ret = ONENAND_IS_4KB_PAGE(this) ? + onenand_mlc_read_ops_nolock(mtd, from, ops) : + onenand_read_ops_nolock(mtd, from, ops); else ret = onenand_read_oob_nolock(mtd, from, ops); onenand_release_device(mtd); @@ -1113,8 +1520,7 @@ static int onenand_bbt_wait(struct mtd_info *mtd, int state) { struct onenand_chip *this = mtd->priv; unsigned long timeout; - unsigned int interrupt; - unsigned int ctrl; + unsigned int interrupt, ctrl, ecc, addr1, addr8; /* The 20 msec is enough */ timeout = jiffies + msecs_to_jiffies(20); @@ -1126,24 +1532,28 @@ static int onenand_bbt_wait(struct mtd_info *mtd, int state) /* To get correct interrupt status in timeout case */ interrupt = this->read_word(this->base + ONENAND_REG_INTERRUPT); ctrl = this->read_word(this->base + ONENAND_REG_CTRL_STATUS); + addr1 = this->read_word(this->base + ONENAND_REG_START_ADDRESS1); + addr8 = this->read_word(this->base + ONENAND_REG_START_ADDRESS8); if (interrupt & ONENAND_INT_READ) { - int ecc = this->read_word(this->base + ONENAND_REG_ECC_STATUS); + ecc = onenand_read_ecc(this); if (ecc & ONENAND_ECC_2BIT_ALL) { - printk(KERN_INFO "onenand_bbt_wait: ecc error = 0x%04x" - ", controller error 0x%04x\n", ecc, ctrl); - return ONENAND_BBT_READ_ERROR; + printk(KERN_DEBUG "%s: ecc 0x%04x ctrl 0x%04x " + "intr 0x%04x addr1 %#x addr8 %#x\n", + __func__, ecc, ctrl, interrupt, addr1, addr8); + return ONENAND_BBT_READ_ECC_ERROR; } } else { - printk(KERN_ERR "onenand_bbt_wait: read timeout!" - "ctrl=0x%04x intr=0x%04x\n", ctrl, interrupt); + printk(KERN_ERR "%s: read timeout! ctrl 0x%04x " + "intr 0x%04x addr1 %#x addr8 %#x\n", + __func__, ctrl, interrupt, addr1, addr8); return ONENAND_BBT_READ_FATAL_ERROR; } /* Initial bad block case: 0x2400 or 0x0400 */ if (ctrl & ONENAND_CTRL_ERROR) { - printk(KERN_DEBUG "onenand_bbt_wait: " - "controller error = 0x%04x\n", ctrl); + printk(KERN_DEBUG "%s: ctrl 0x%04x intr 0x%04x addr1 %#x " + "addr8 %#x\n", __func__, ctrl, interrupt, addr1, addr8); return ONENAND_BBT_READ_ERROR; } @@ -1163,18 +1573,20 @@ int onenand_bbt_read_oob(struct mtd_info *mtd, loff_t from, { struct onenand_chip *this = mtd->priv; int read = 0, thislen, column; - int ret = 0; + int ret = 0, readcmd; size_t len = ops->ooblen; u_char *buf = ops->oobbuf; - DEBUG(MTD_DEBUG_LEVEL3, "onenand_bbt_read_oob: from = 0x%08x, len = %zi\n", (unsigned int) from, len); + pr_debug("%s: from = 0x%08x, len = %zi\n", __func__, (unsigned int)from, + len); /* Initialize return value */ ops->oobretlen = 0; /* Do not allow reads past end of device */ if (unlikely((from + len) > mtd->size)) { - printk(KERN_ERR "onenand_bbt_read_oob: Attempt read beyond end of device\n"); + printk(KERN_ERR "%s: Attempt read beyond end of device\n", + __func__); return ONENAND_BBT_READ_FATAL_ERROR; } @@ -1183,17 +1595,22 @@ int onenand_bbt_read_oob(struct mtd_info *mtd, loff_t from, column = from & (mtd->oobsize - 1); + readcmd = ONENAND_IS_4KB_PAGE(this) ? ONENAND_CMD_READ : ONENAND_CMD_READOOB; + while (read < len) { cond_resched(); thislen = mtd->oobsize - column; thislen = min_t(int, thislen, len); - this->command(mtd, ONENAND_CMD_READOOB, from, mtd->oobsize); + this->command(mtd, readcmd, from, mtd->oobsize); onenand_update_bufferram(mtd, from, 0); - ret = onenand_bbt_wait(mtd, FL_READING); + ret = this->bbt_wait(mtd, FL_READING); + if (unlikely(ret)) + ret = onenand_recover_lsb(mtd, from, ret); + if (ret) break; @@ -1230,9 +1647,11 @@ static int onenand_verify_oob(struct mtd_info *mtd, const u_char *buf, loff_t to { struct onenand_chip *this = mtd->priv; u_char *oob_buf = this->oob_buf; - int status, i; + int status, i, readcmd; + + readcmd = ONENAND_IS_4KB_PAGE(this) ? ONENAND_CMD_READ : ONENAND_CMD_READOOB; - this->command(mtd, ONENAND_CMD_READOOB, to, mtd->oobsize); + this->command(mtd, readcmd, to, mtd->oobsize); onenand_update_bufferram(mtd, to, 0); status = this->wait(mtd, FL_READING); if (status) @@ -1256,15 +1675,13 @@ static int onenand_verify_oob(struct mtd_info *mtd, const u_char *buf, loff_t to static int onenand_verify(struct mtd_info *mtd, const u_char *buf, loff_t addr, size_t len) { struct onenand_chip *this = mtd->priv; - void __iomem *dataram; int ret = 0; int thislen, column; + column = addr & (this->writesize - 1); + while (len != 0) { - thislen = min_t(int, this->writesize, len); - column = addr & (this->writesize - 1); - if (column + thislen > this->writesize) - thislen = this->writesize - column; + thislen = min_t(int, this->writesize - column, len); this->command(mtd, ONENAND_CMD_READ, addr, this->writesize); @@ -1276,15 +1693,15 @@ static int onenand_verify(struct mtd_info *mtd, const u_char *buf, loff_t addr, onenand_update_bufferram(mtd, addr, 1); - dataram = this->base + ONENAND_DATARAM; - dataram += onenand_bufferram_offset(mtd, ONENAND_DATARAM); + this->read_bufferram(mtd, ONENAND_DATARAM, this->verify_buf, 0, mtd->writesize); - if (memcmp(buf, dataram + column, thislen)) + if (memcmp(buf, this->verify_buf + column, thislen)) return -EBADMSG; len -= thislen; buf += thislen; addr += thislen; + column = 0; } return 0; @@ -1334,21 +1751,13 @@ static int onenand_panic_write(struct mtd_info *mtd, loff_t to, size_t len, /* Wait for any existing operation to clear */ onenand_panic_wait(mtd); - DEBUG(MTD_DEBUG_LEVEL3, "onenand_panic_write: to = 0x%08x, len = %i\n", - (unsigned int) to, (int) len); - - /* Initialize retlen, in case of early exit */ - *retlen = 0; - - /* Do not allow writes past end of device */ - if (unlikely((to + len) > mtd->size)) { - printk(KERN_ERR "onenand_panic_write: Attempt write to past end of device\n"); - return -EINVAL; - } + pr_debug("%s: to = 0x%08x, len = %i\n", __func__, (unsigned int)to, + (int)len); /* Reject writes, which are not page aligned */ if (unlikely(NOTALIGNED(to) || NOTALIGNED(len))) { - printk(KERN_ERR "onenand_panic_write: Attempt to write not page aligned data\n"); + printk(KERN_ERR "%s: Attempt to write not page aligned data\n", + __func__); return -EINVAL; } @@ -1384,7 +1793,7 @@ static int onenand_panic_write(struct mtd_info *mtd, loff_t to, size_t len, } if (ret) { - printk(KERN_ERR "onenand_panic_write: write failed %d\n", ret); + printk(KERN_ERR "%s: write failed %d\n", __func__, ret); break; } @@ -1403,7 +1812,7 @@ static int onenand_panic_write(struct mtd_info *mtd, loff_t to, size_t len, } /** - * onenand_fill_auto_oob - [Internal] oob auto-placement transfer + * onenand_fill_auto_oob - [INTERN] oob auto-placement transfer * @param mtd MTD device structure * @param oob_buf oob buffer * @param buf source address @@ -1463,23 +1872,19 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to, const u_char *buf = ops->datbuf; const u_char *oob = ops->oobbuf; u_char *oobbuf; - int ret = 0; + int ret = 0, cmd; - DEBUG(MTD_DEBUG_LEVEL3, "onenand_write_ops_nolock: to = 0x%08x, len = %i\n", (unsigned int) to, (int) len); + pr_debug("%s: to = 0x%08x, len = %i\n", __func__, (unsigned int)to, + (int)len); /* Initialize retlen, in case of early exit */ ops->retlen = 0; ops->oobretlen = 0; - /* Do not allow writes past end of device */ - if (unlikely((to + len) > mtd->size)) { - printk(KERN_ERR "onenand_write_ops_nolock: Attempt write to past end of device\n"); - return -EINVAL; - } - /* Reject writes, which are not page aligned */ if (unlikely(NOTALIGNED(to) || NOTALIGNED(len))) { - printk(KERN_ERR "onenand_write_ops_nolock: Attempt to write not page aligned data\n"); + printk(KERN_ERR "%s: Attempt to write not page aligned data\n", + __func__); return -EINVAL; } @@ -1487,7 +1892,7 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to, if (!len) return 0; - if (ops->mode == MTD_OOB_AUTO) + if (ops->mode == MTD_OPS_AUTO_OOB) oobsize = this->ecclayout->oobavail; else oobsize = mtd->oobsize; @@ -1524,7 +1929,7 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to, /* We send data to spare ram with oobsize * to prevent byte access */ memset(oobbuf, 0xff, mtd->oobsize); - if (ops->mode == MTD_OOB_AUTO) + if (ops->mode == MTD_OPS_AUTO_OOB) onenand_fill_auto_oob(mtd, oobbuf, oob, oobcolumn, thisooblen); else memcpy(oobbuf + oobcolumn, oob, thisooblen); @@ -1540,10 +1945,10 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to, ONENAND_SET_NEXT_BUFFERRAM(this); /* - * 2 PLANE, MLC, and Flex-OneNAND doesn't support - * write-while-programe feature. + * 2 PLANE, MLC, and Flex-OneNAND do not support + * write-while-program feature. */ - if (!ONENAND_IS_2PLANE(this) && !first) { + if (!ONENAND_IS_2PLANE(this) && !ONENAND_IS_4KB_PAGE(this) && !first) { ONENAND_SET_PREV_BUFFERRAM(this); ret = this->wait(mtd, FL_WRITING); @@ -1552,7 +1957,8 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to, onenand_update_bufferram(mtd, prev, !ret && !prev_subpage); if (ret) { written -= prevlen; - printk(KERN_ERR "onenand_write_ops_nolock: write filaed %d\n", ret); + printk(KERN_ERR "%s: write failed %d\n", + __func__, ret); break; } @@ -1560,32 +1966,47 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to, /* Only check verify write turn on */ ret = onenand_verify(mtd, buf - len, to - len, len); if (ret) - printk(KERN_ERR "onenand_write_ops_nolock: verify failed %d\n", ret); + printk(KERN_ERR "%s: verify failed %d\n", + __func__, ret); break; } ONENAND_SET_NEXT_BUFFERRAM(this); } - this->command(mtd, ONENAND_CMD_PROG, to, mtd->writesize); + this->ongoing = 0; + cmd = ONENAND_CMD_PROG; + + /* Exclude 1st OTP and OTP blocks for cache program feature */ + if (ONENAND_IS_CACHE_PROGRAM(this) && + likely(onenand_block(this, to) != 0) && + ONENAND_IS_4KB_PAGE(this) && + ((written + thislen) < len)) { + cmd = ONENAND_CMD_2X_CACHE_PROG; + this->ongoing = 1; + } + + this->command(mtd, cmd, to, mtd->writesize); /* * 2 PLANE, MLC, and Flex-OneNAND wait here */ - if (ONENAND_IS_2PLANE(this)) { + if (ONENAND_IS_2PLANE(this) || ONENAND_IS_4KB_PAGE(this)) { ret = this->wait(mtd, FL_WRITING); /* In partial page write we don't update bufferram */ onenand_update_bufferram(mtd, to, !ret && !subpage); if (ret) { - printk(KERN_ERR "onenand_write_ops_nolock: write filaed %d\n", ret); + printk(KERN_ERR "%s: write failed %d\n", + __func__, ret); break; } /* Only check verify write turn on */ ret = onenand_verify(mtd, buf, to, thislen); if (ret) { - printk(KERN_ERR "onenand_write_ops_nolock: verify failed %d\n", ret); + printk(KERN_ERR "%s: verify failed %d\n", + __func__, ret); break; } @@ -1618,7 +2039,7 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to, /** - * onenand_write_oob_nolock - [Internal] OneNAND write out-of-band + * onenand_write_oob_nolock - [INTERN] OneNAND write out-of-band * @param mtd MTD device structure * @param to offset to write to * @param len number of bytes to write @@ -1633,20 +2054,21 @@ static int onenand_write_oob_nolock(struct mtd_info *mtd, loff_t to, { struct onenand_chip *this = mtd->priv; int column, ret = 0, oobsize; - int written = 0; + int written = 0, oobcmd; u_char *oobbuf; size_t len = ops->ooblen; const u_char *buf = ops->oobbuf; - mtd_oob_mode_t mode = ops->mode; + unsigned int mode = ops->mode; to += ops->ooboffs; - DEBUG(MTD_DEBUG_LEVEL3, "onenand_write_oob_nolock: to = 0x%08x, len = %i\n", (unsigned int) to, (int) len); + pr_debug("%s: to = 0x%08x, len = %i\n", __func__, (unsigned int)to, + (int)len); /* Initialize retlen, in case of early exit */ ops->oobretlen = 0; - if (mode == MTD_OOB_AUTO) + if (mode == MTD_OPS_AUTO_OOB) oobsize = this->ecclayout->oobavail; else oobsize = mtd->oobsize; @@ -1654,14 +2076,15 @@ static int onenand_write_oob_nolock(struct mtd_info *mtd, loff_t to, column = to & (mtd->oobsize - 1); if (unlikely(column >= oobsize)) { - printk(KERN_ERR "onenand_write_oob_nolock: Attempted to start write outside oob\n"); + printk(KERN_ERR "%s: Attempted to start write outside oob\n", + __func__); return -EINVAL; } /* For compatibility with NAND: Do not allow write past end of page */ if (unlikely(column + len > oobsize)) { - printk(KERN_ERR "onenand_write_oob_nolock: " - "Attempt to write past end of page\n"); + printk(KERN_ERR "%s: Attempt to write past end of page\n", + __func__); return -EINVAL; } @@ -1669,12 +2092,15 @@ static int onenand_write_oob_nolock(struct mtd_info *mtd, loff_t to, if (unlikely(to >= mtd->size || column + len > ((mtd->size >> this->page_shift) - (to >> this->page_shift)) * oobsize)) { - printk(KERN_ERR "onenand_write_oob_nolock: Attempted to write past end of device\n"); + printk(KERN_ERR "%s: Attempted to write past end of device\n", + __func__); return -EINVAL; } oobbuf = this->oob_buf; + oobcmd = ONENAND_IS_4KB_PAGE(this) ? ONENAND_CMD_PROG : ONENAND_CMD_PROGOOB; + /* Loop until all data write */ while (written < len) { int thislen = min_t(int, oobsize, len - written); @@ -1686,13 +2112,20 @@ static int onenand_write_oob_nolock(struct mtd_info *mtd, loff_t to, /* We send data to spare ram with oobsize * to prevent byte access */ memset(oobbuf, 0xff, mtd->oobsize); - if (mode == MTD_OOB_AUTO) + if (mode == MTD_OPS_AUTO_OOB) onenand_fill_auto_oob(mtd, oobbuf, buf, column, thislen); else memcpy(oobbuf + column, buf, thislen); this->write_bufferram(mtd, ONENAND_SPARERAM, oobbuf, 0, mtd->oobsize); - this->command(mtd, ONENAND_CMD_PROGOOB, to, mtd->oobsize); + if (ONENAND_IS_4KB_PAGE(this)) { + /* Set main area of DataRAM to 0xff*/ + memset(this->page_buf, 0xff, mtd->writesize); + this->write_bufferram(mtd, ONENAND_DATARAM, + this->page_buf, 0, mtd->writesize); + } + + this->command(mtd, oobcmd, to, mtd->oobsize); onenand_update_bufferram(mtd, to, 0); if (ONENAND_IS_2PLANE(this)) { @@ -1702,13 +2135,14 @@ static int onenand_write_oob_nolock(struct mtd_info *mtd, loff_t to, ret = this->wait(mtd, FL_WRITING); if (ret) { - printk(KERN_ERR "onenand_write_oob_nolock: write failed %d\n", ret); + printk(KERN_ERR "%s: write failed %d\n", __func__, ret); break; } ret = onenand_verify_oob(mtd, oobbuf, to); if (ret) { - printk(KERN_ERR "onenand_write_oob_nolock: verify failed %d\n", ret); + printk(KERN_ERR "%s: verify failed %d\n", + __func__, ret); break; } @@ -1767,10 +2201,10 @@ static int onenand_write_oob(struct mtd_info *mtd, loff_t to, int ret; switch (ops->mode) { - case MTD_OOB_PLACE: - case MTD_OOB_AUTO: + case MTD_OPS_PLACE_OOB: + case MTD_OPS_AUTO_OOB: break; - case MTD_OOB_RAW: + case MTD_OPS_RAW: /* Not implemented yet */ default: return -EINVAL; @@ -1804,62 +2238,186 @@ static int onenand_block_isbad_nolock(struct mtd_info *mtd, loff_t ofs, int allo return bbm->isbad_bbt(mtd, ofs, allowbbt); } + +static int onenand_multiblock_erase_verify(struct mtd_info *mtd, + struct erase_info *instr) +{ + struct onenand_chip *this = mtd->priv; + loff_t addr = instr->addr; + int len = instr->len; + unsigned int block_size = (1 << this->erase_shift); + int ret = 0; + + while (len) { + this->command(mtd, ONENAND_CMD_ERASE_VERIFY, addr, block_size); + ret = this->wait(mtd, FL_VERIFYING_ERASE); + if (ret) { + printk(KERN_ERR "%s: Failed verify, block %d\n", + __func__, onenand_block(this, addr)); + instr->state = MTD_ERASE_FAILED; + instr->fail_addr = addr; + return -1; + } + len -= block_size; + addr += block_size; + } + return 0; +} + /** - * onenand_erase - [MTD Interface] erase block(s) + * onenand_multiblock_erase - [INTERN] erase block(s) using multiblock erase * @param mtd MTD device structure * @param instr erase instruction + * @param region erase region * - * Erase one ore more blocks + * Erase one or more blocks up to 64 block at a time */ -static int onenand_erase(struct mtd_info *mtd, struct erase_info *instr) +static int onenand_multiblock_erase(struct mtd_info *mtd, + struct erase_info *instr, + unsigned int block_size) { struct onenand_chip *this = mtd->priv; - unsigned int block_size; - loff_t addr; - int len; + loff_t addr = instr->addr; + int len = instr->len; + int eb_count = 0; int ret = 0; + int bdry_block = 0; - DEBUG(MTD_DEBUG_LEVEL3, "onenand_erase: start = 0x%012llx, len = %llu\n", (unsigned long long) instr->addr, (unsigned long long) instr->len); - - block_size = (1 << this->erase_shift); + instr->state = MTD_ERASING; - /* Start address must align on block boundary */ - if (unlikely(instr->addr & (block_size - 1))) { - printk(KERN_ERR "onenand_erase: Unaligned address\n"); - return -EINVAL; + if (ONENAND_IS_DDP(this)) { + loff_t bdry_addr = this->chipsize >> 1; + if (addr < bdry_addr && (addr + len) > bdry_addr) + bdry_block = bdry_addr >> this->erase_shift; } - /* Length must align on block boundary */ - if (unlikely(instr->len & (block_size - 1))) { - printk(KERN_ERR "onenand_erase: Length not block aligned\n"); - return -EINVAL; + /* Pre-check bbs */ + while (len) { + /* Check if we have a bad block, we do not erase bad blocks */ + if (onenand_block_isbad_nolock(mtd, addr, 0)) { + printk(KERN_WARNING "%s: attempt to erase a bad block " + "at addr 0x%012llx\n", + __func__, (unsigned long long) addr); + instr->state = MTD_ERASE_FAILED; + return -EIO; + } + len -= block_size; + addr += block_size; } - /* Do not allow erase past end of device */ - if (unlikely((instr->len + instr->addr) > mtd->size)) { - printk(KERN_ERR "onenand_erase: Erase past end of device\n"); - return -EINVAL; + len = instr->len; + addr = instr->addr; + + /* loop over 64 eb batches */ + while (len) { + struct erase_info verify_instr = *instr; + int max_eb_count = MB_ERASE_MAX_BLK_COUNT; + + verify_instr.addr = addr; + verify_instr.len = 0; + + /* do not cross chip boundary */ + if (bdry_block) { + int this_block = (addr >> this->erase_shift); + + if (this_block < bdry_block) { + max_eb_count = min(max_eb_count, + (bdry_block - this_block)); + } + } + + eb_count = 0; + + while (len > block_size && eb_count < (max_eb_count - 1)) { + this->command(mtd, ONENAND_CMD_MULTIBLOCK_ERASE, + addr, block_size); + onenand_invalidate_bufferram(mtd, addr, block_size); + + ret = this->wait(mtd, FL_PREPARING_ERASE); + if (ret) { + printk(KERN_ERR "%s: Failed multiblock erase, " + "block %d\n", __func__, + onenand_block(this, addr)); + instr->state = MTD_ERASE_FAILED; + instr->fail_addr = MTD_FAIL_ADDR_UNKNOWN; + return -EIO; + } + + len -= block_size; + addr += block_size; + eb_count++; + } + + /* last block of 64-eb series */ + cond_resched(); + this->command(mtd, ONENAND_CMD_ERASE, addr, block_size); + onenand_invalidate_bufferram(mtd, addr, block_size); + + ret = this->wait(mtd, FL_ERASING); + /* Check if it is write protected */ + if (ret) { + printk(KERN_ERR "%s: Failed erase, block %d\n", + __func__, onenand_block(this, addr)); + instr->state = MTD_ERASE_FAILED; + instr->fail_addr = MTD_FAIL_ADDR_UNKNOWN; + return -EIO; + } + + len -= block_size; + addr += block_size; + eb_count++; + + /* verify */ + verify_instr.len = eb_count * block_size; + if (onenand_multiblock_erase_verify(mtd, &verify_instr)) { + instr->state = verify_instr.state; + instr->fail_addr = verify_instr.fail_addr; + return -EIO; + } + } + return 0; +} - instr->fail_addr = MTD_FAIL_ADDR_UNKNOWN; - /* Grab the lock and see if the device is available */ - onenand_get_device(mtd, FL_ERASING); +/** + * onenand_block_by_block_erase - [INTERN] erase block(s) using regular erase + * @param mtd MTD device structure + * @param instr erase instruction + * @param region erase region + * @param block_size erase block size + * + * Erase one or more blocks one block at a time + */ +static int onenand_block_by_block_erase(struct mtd_info *mtd, + struct erase_info *instr, + struct mtd_erase_region_info *region, + unsigned int block_size) +{ + struct onenand_chip *this = mtd->priv; + loff_t addr = instr->addr; + int len = instr->len; + loff_t region_end = 0; + int ret = 0; - /* Loop throught the pages */ - len = instr->len; - addr = instr->addr; + if (region) { + /* region is set for Flex-OneNAND */ + region_end = region->offset + region->erasesize * region->numblocks; + } instr->state = MTD_ERASING; + /* Loop through the blocks */ while (len) { cond_resched(); /* Check if we have a bad block, we do not erase bad blocks */ if (onenand_block_isbad_nolock(mtd, addr, 0)) { - printk (KERN_WARNING "onenand_erase: attempt to erase a bad block at addr 0x%012llx\n", (unsigned long long) addr); + printk(KERN_WARNING "%s: attempt to erase a bad block " + "at addr 0x%012llx\n", + __func__, (unsigned long long) addr); instr->state = MTD_ERASE_FAILED; - goto erase_exit; + return -EIO; } this->command(mtd, ONENAND_CMD_ERASE, addr, block_size); @@ -1869,28 +2427,102 @@ static int onenand_erase(struct mtd_info *mtd, struct erase_info *instr) ret = this->wait(mtd, FL_ERASING); /* Check, if it is write protected */ if (ret) { - printk(KERN_ERR "onenand_erase: Failed erase, block %d\n", (unsigned) (addr >> this->erase_shift)); + printk(KERN_ERR "%s: Failed erase, block %d\n", + __func__, onenand_block(this, addr)); instr->state = MTD_ERASE_FAILED; instr->fail_addr = addr; - goto erase_exit; + return -EIO; } len -= block_size; addr += block_size; + + if (region && addr == region_end) { + if (!len) + break; + region++; + + block_size = region->erasesize; + region_end = region->offset + region->erasesize * region->numblocks; + + if (len & (block_size - 1)) { + /* FIXME: This should be handled at MTD partitioning level. */ + printk(KERN_ERR "%s: Unaligned address\n", + __func__); + return -EIO; + } + } + } + return 0; +} + +/** + * onenand_erase - [MTD Interface] erase block(s) + * @param mtd MTD device structure + * @param instr erase instruction + * + * Erase one or more blocks + */ +static int onenand_erase(struct mtd_info *mtd, struct erase_info *instr) +{ + struct onenand_chip *this = mtd->priv; + unsigned int block_size; + loff_t addr = instr->addr; + loff_t len = instr->len; + int ret = 0; + struct mtd_erase_region_info *region = NULL; + loff_t region_offset = 0; + + pr_debug("%s: start=0x%012llx, len=%llu\n", __func__, + (unsigned long long)instr->addr, + (unsigned long long)instr->len); + + if (FLEXONENAND(this)) { + /* Find the eraseregion of this address */ + int i = flexonenand_region(mtd, addr); + + region = &mtd->eraseregions[i]; + block_size = region->erasesize; + + /* Start address within region must align on block boundary. + * Erase region's start offset is always block start address. + */ + region_offset = region->offset; + } else + block_size = 1 << this->erase_shift; + + /* Start address must align on block boundary */ + if (unlikely((addr - region_offset) & (block_size - 1))) { + printk(KERN_ERR "%s: Unaligned address\n", __func__); + return -EINVAL; } - instr->state = MTD_ERASE_DONE; + /* Length must align on block boundary */ + if (unlikely(len & (block_size - 1))) { + printk(KERN_ERR "%s: Length not block aligned\n", __func__); + return -EINVAL; + } -erase_exit: + /* Grab the lock and see if the device is available */ + onenand_get_device(mtd, FL_ERASING); - ret = instr->state == MTD_ERASE_DONE ? 0 : -EIO; + if (ONENAND_IS_4KB_PAGE(this) || region || + instr->len < MB_ERASE_MIN_BLK_COUNT * block_size) { + /* region is set for Flex-OneNAND (no mb erase) */ + ret = onenand_block_by_block_erase(mtd, instr, + region, block_size); + } else { + ret = onenand_multiblock_erase(mtd, instr, block_size); + } /* Deselect and wake up anyone waiting on the device */ onenand_release_device(mtd); /* Do call back function */ - if (!ret) + if (!ret) { + instr->state = MTD_ERASE_DONE; mtd_erase_callback(instr); + } return ret; } @@ -1903,7 +2535,7 @@ erase_exit: */ static void onenand_sync(struct mtd_info *mtd) { - DEBUG(MTD_DEBUG_LEVEL3, "onenand_sync: called\n"); + pr_debug("%s: called\n", __func__); /* Grab the lock and see if the device is available */ onenand_get_device(mtd, FL_SYNCING); @@ -1923,10 +2555,6 @@ static int onenand_block_isbad(struct mtd_info *mtd, loff_t ofs) { int ret; - /* Check for invalid offset */ - if (ofs > mtd->size) - return -EINVAL; - onenand_get_device(mtd, FL_READING); ret = onenand_block_isbad_nolock(mtd, ofs, 0); onenand_release_device(mtd); @@ -1947,7 +2575,7 @@ static int onenand_default_block_markbad(struct mtd_info *mtd, loff_t ofs) struct bbm_info *bbm = this->bbm; u_char buf[2] = {0, 0}; struct mtd_oob_ops ops = { - .mode = MTD_OOB_PLACE, + .mode = MTD_OPS_PLACE_OOB, .ooblen = 2, .oobbuf = buf, .ooboffs = 0, @@ -1955,13 +2583,17 @@ static int onenand_default_block_markbad(struct mtd_info *mtd, loff_t ofs) int block; /* Get block number */ - block = ((int) ofs) >> bbm->bbt_erase_shift; + block = onenand_block(this, ofs); if (bbm->bbt) bbm->bbt[block >> 2] |= 0x01 << ((block & 0x03) << 1); - /* We write two bytes, so we dont have to mess with 16 bit access */ + /* We write two bytes, so we don't have to mess with 16-bit access */ ofs += mtd->oobsize + (bbm->badblockpos & ~0x01); - return onenand_write_oob_nolock(mtd, ofs, &ops); + /* FIXME : What to do when marking SLC block in partition + * with MLC erasesize? For now, it is not advisable to + * create partitions containing both SLC and MLC regions. + */ + return onenand_write_oob_nolock(mtd, ofs, &ops); } /** @@ -1973,7 +2605,6 @@ static int onenand_default_block_markbad(struct mtd_info *mtd, loff_t ofs) */ static int onenand_block_markbad(struct mtd_info *mtd, loff_t ofs) { - struct onenand_chip *this = mtd->priv; int ret; ret = onenand_block_isbad(mtd, ofs); @@ -1985,7 +2616,7 @@ static int onenand_block_markbad(struct mtd_info *mtd, loff_t ofs) } onenand_get_device(mtd, FL_WRITING); - ret = this->block_markbad(mtd, ofs); + ret = mtd_block_markbad(mtd, ofs); onenand_release_device(mtd); return ret; } @@ -2005,8 +2636,8 @@ static int onenand_do_lock_cmd(struct mtd_info *mtd, loff_t ofs, size_t len, int int start, end, block, value, status; int wp_status_mask; - start = ofs >> this->erase_shift; - end = len >> this->erase_shift; + start = onenand_block(this, ofs); + end = onenand_block(this, ofs + len) - 1; if (cmd == ONENAND_CMD_LOCK) wp_status_mask = ONENAND_WP_LS; @@ -2018,7 +2649,7 @@ static int onenand_do_lock_cmd(struct mtd_info *mtd, loff_t ofs, size_t len, int /* Set start block address */ this->write_word(start, this->base + ONENAND_REG_START_BLOCK_ADDRESS); /* Set end block address */ - this->write_word(start + end - 1, this->base + ONENAND_REG_END_BLOCK_ADDRESS); + this->write_word(end, this->base + ONENAND_REG_END_BLOCK_ADDRESS); /* Write lock command */ this->command(mtd, cmd, 0, 0); @@ -2033,13 +2664,14 @@ static int onenand_do_lock_cmd(struct mtd_info *mtd, loff_t ofs, size_t len, int /* Check lock status */ status = this->read_word(this->base + ONENAND_REG_WP_STATUS); if (!(status & wp_status_mask)) - printk(KERN_ERR "wp status = 0x%x\n", status); + printk(KERN_ERR "%s: wp status = 0x%x\n", + __func__, status); return 0; } /* Block lock scheme */ - for (block = start; block < start + end; block++) { + for (block = start; block < end + 1; block++) { /* Set block address */ value = onenand_block_address(this, block); this->write_word(value, this->base + ONENAND_REG_START_ADDRESS1); @@ -2062,7 +2694,8 @@ static int onenand_do_lock_cmd(struct mtd_info *mtd, loff_t ofs, size_t len, int /* Check lock status */ status = this->read_word(this->base + ONENAND_REG_WP_STATUS); if (!(status & wp_status_mask)) - printk(KERN_ERR "block = %d, wp status = 0x%x\n", block, status); + printk(KERN_ERR "%s: block = %d, wp status = 0x%x\n", + __func__, block, status); } return 0; @@ -2129,7 +2762,8 @@ static int onenand_check_lock_status(struct onenand_chip *this) /* Check lock status */ status = this->read_word(this->base + ONENAND_REG_WP_STATUS); if (!(status & ONENAND_WP_US)) { - printk(KERN_ERR "block = %d, wp status = 0x%x\n", block, status); + printk(KERN_ERR "%s: block = %d, wp status = 0x%x\n", + __func__, block, status); return 0; } } @@ -2147,7 +2781,7 @@ static void onenand_unlock_all(struct mtd_info *mtd) { struct onenand_chip *this = mtd->priv; loff_t ofs = 0; - size_t len = this->chipsize; + loff_t len = mtd->size; if (this->options & ONENAND_HAS_UNLOCK_ALL) { /* Set start block address */ @@ -2163,12 +2797,16 @@ static void onenand_unlock_all(struct mtd_info *mtd) & ONENAND_CTRL_ONGO) continue; + /* Don't check lock status */ + if (this->options & ONENAND_SKIP_UNLOCK_CHECK) + return; + /* Check lock status */ if (onenand_check_lock_status(this)) return; /* Workaround for all block unlock in DDP */ - if (ONENAND_IS_DDP(this)) { + if (ONENAND_IS_DDP(this) && !FLEXONENAND(this)) { /* All blocks on another chip */ ofs = this->chipsize >> 1; len = this->chipsize >> 1; @@ -2180,7 +2818,209 @@ static void onenand_unlock_all(struct mtd_info *mtd) #ifdef CONFIG_MTD_ONENAND_OTP -/* Interal OTP operation */ +/** + * onenand_otp_command - Send OTP specific command to OneNAND device + * @param mtd MTD device structure + * @param cmd the command to be sent + * @param addr offset to read from or write to + * @param len number of bytes to read or write + */ +static int onenand_otp_command(struct mtd_info *mtd, int cmd, loff_t addr, + size_t len) +{ + struct onenand_chip *this = mtd->priv; + int value, block, page; + + /* Address translation */ + switch (cmd) { + case ONENAND_CMD_OTP_ACCESS: + block = (int) (addr >> this->erase_shift); + page = -1; + break; + + default: + block = (int) (addr >> this->erase_shift); + page = (int) (addr >> this->page_shift); + + if (ONENAND_IS_2PLANE(this)) { + /* Make the even block number */ + block &= ~1; + /* Is it the odd plane? */ + if (addr & this->writesize) + block++; + page >>= 1; + } + page &= this->page_mask; + break; + } + + if (block != -1) { + /* Write 'DFS, FBA' of Flash */ + value = onenand_block_address(this, block); + this->write_word(value, this->base + + ONENAND_REG_START_ADDRESS1); + } + + if (page != -1) { + /* Now we use page size operation */ + int sectors = 4, count = 4; + int dataram; + + switch (cmd) { + default: + if (ONENAND_IS_2PLANE(this) && cmd == ONENAND_CMD_PROG) + cmd = ONENAND_CMD_2X_PROG; + dataram = ONENAND_CURRENT_BUFFERRAM(this); + break; + } + + /* Write 'FPA, FSA' of Flash */ + value = onenand_page_address(page, sectors); + this->write_word(value, this->base + + ONENAND_REG_START_ADDRESS8); + + /* Write 'BSA, BSC' of DataRAM */ + value = onenand_buffer_address(dataram, sectors, count); + this->write_word(value, this->base + ONENAND_REG_START_BUFFER); + } + + /* Interrupt clear */ + this->write_word(ONENAND_INT_CLEAR, this->base + ONENAND_REG_INTERRUPT); + + /* Write command */ + this->write_word(cmd, this->base + ONENAND_REG_COMMAND); + + return 0; +} + +/** + * onenand_otp_write_oob_nolock - [INTERN] OneNAND write out-of-band, specific to OTP + * @param mtd MTD device structure + * @param to offset to write to + * @param len number of bytes to write + * @param retlen pointer to variable to store the number of written bytes + * @param buf the data to write + * + * OneNAND write out-of-band only for OTP + */ +static int onenand_otp_write_oob_nolock(struct mtd_info *mtd, loff_t to, + struct mtd_oob_ops *ops) +{ + struct onenand_chip *this = mtd->priv; + int column, ret = 0, oobsize; + int written = 0; + u_char *oobbuf; + size_t len = ops->ooblen; + const u_char *buf = ops->oobbuf; + int block, value, status; + + to += ops->ooboffs; + + /* Initialize retlen, in case of early exit */ + ops->oobretlen = 0; + + oobsize = mtd->oobsize; + + column = to & (mtd->oobsize - 1); + + oobbuf = this->oob_buf; + + /* Loop until all data write */ + while (written < len) { + int thislen = min_t(int, oobsize, len - written); + + cond_resched(); + + block = (int) (to >> this->erase_shift); + /* + * Write 'DFS, FBA' of Flash + * Add: F100h DQ=DFS, FBA + */ + + value = onenand_block_address(this, block); + this->write_word(value, this->base + + ONENAND_REG_START_ADDRESS1); + + /* + * Select DataRAM for DDP + * Add: F101h DQ=DBS + */ + + value = onenand_bufferram_address(this, block); + this->write_word(value, this->base + + ONENAND_REG_START_ADDRESS2); + ONENAND_SET_NEXT_BUFFERRAM(this); + + /* + * Enter OTP access mode + */ + this->command(mtd, ONENAND_CMD_OTP_ACCESS, 0, 0); + this->wait(mtd, FL_OTPING); + + /* We send data to spare ram with oobsize + * to prevent byte access */ + memcpy(oobbuf + column, buf, thislen); + + /* + * Write Data into DataRAM + * Add: 8th Word + * in sector0/spare/page0 + * DQ=XXFCh + */ + this->write_bufferram(mtd, ONENAND_SPARERAM, + oobbuf, 0, mtd->oobsize); + + onenand_otp_command(mtd, ONENAND_CMD_PROGOOB, to, mtd->oobsize); + onenand_update_bufferram(mtd, to, 0); + if (ONENAND_IS_2PLANE(this)) { + ONENAND_SET_BUFFERRAM1(this); + onenand_update_bufferram(mtd, to + this->writesize, 0); + } + + ret = this->wait(mtd, FL_WRITING); + if (ret) { + printk(KERN_ERR "%s: write failed %d\n", __func__, ret); + break; + } + + /* Exit OTP access mode */ + this->command(mtd, ONENAND_CMD_RESET, 0, 0); + this->wait(mtd, FL_RESETING); + + status = this->read_word(this->base + ONENAND_REG_CTRL_STATUS); + status &= 0x60; + + if (status == 0x60) { + printk(KERN_DEBUG "\nBLOCK\tSTATUS\n"); + printk(KERN_DEBUG "1st Block\tLOCKED\n"); + printk(KERN_DEBUG "OTP Block\tLOCKED\n"); + } else if (status == 0x20) { + printk(KERN_DEBUG "\nBLOCK\tSTATUS\n"); + printk(KERN_DEBUG "1st Block\tLOCKED\n"); + printk(KERN_DEBUG "OTP Block\tUN-LOCKED\n"); + } else if (status == 0x40) { + printk(KERN_DEBUG "\nBLOCK\tSTATUS\n"); + printk(KERN_DEBUG "1st Block\tUN-LOCKED\n"); + printk(KERN_DEBUG "OTP Block\tLOCKED\n"); + } else { + printk(KERN_DEBUG "Reboot to check\n"); + } + + written += thislen; + if (written == len) + break; + + to += mtd->writesize; + buf += thislen; + column = 0; + } + + ops->oobretlen = written; + + return ret; +} + +/* Internal OTP operation */ typedef int (*otp_op_t)(struct mtd_info *mtd, loff_t form, size_t len, size_t *retlen, u_char *buf); @@ -2210,7 +3050,9 @@ static int do_otp_read(struct mtd_info *mtd, loff_t from, size_t len, this->command(mtd, ONENAND_CMD_OTP_ACCESS, 0, 0); this->wait(mtd, FL_OTPING); - ret = onenand_read_ops_nolock(mtd, from, &ops); + ret = ONENAND_IS_4KB_PAGE(this) ? + onenand_mlc_read_ops_nolock(mtd, from, &ops) : + onenand_read_ops_nolock(mtd, from, &ops); /* Exit OTP access mode */ this->command(mtd, ONENAND_CMD_RESET, 0, 0); @@ -2277,25 +3119,36 @@ static int do_otp_lock(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf) { struct onenand_chip *this = mtd->priv; - struct mtd_oob_ops ops = { - .mode = MTD_OOB_PLACE, - .ooblen = len, - .oobbuf = buf, - .ooboffs = 0, - }; + struct mtd_oob_ops ops; int ret; - /* Enter OTP access mode */ - this->command(mtd, ONENAND_CMD_OTP_ACCESS, 0, 0); - this->wait(mtd, FL_OTPING); - - ret = onenand_write_oob_nolock(mtd, from, &ops); + if (FLEXONENAND(this)) { - *retlen = ops.oobretlen; - - /* Exit OTP access mode */ - this->command(mtd, ONENAND_CMD_RESET, 0, 0); - this->wait(mtd, FL_RESETING); + /* Enter OTP access mode */ + this->command(mtd, ONENAND_CMD_OTP_ACCESS, 0, 0); + this->wait(mtd, FL_OTPING); + /* + * For Flex-OneNAND, we write lock mark to 1st word of sector 4 of + * main area of page 49. + */ + ops.len = mtd->writesize; + ops.ooblen = 0; + ops.datbuf = buf; + ops.oobbuf = NULL; + ret = onenand_write_ops_nolock(mtd, mtd->writesize * 49, &ops); + *retlen = ops.retlen; + + /* Exit OTP access mode */ + this->command(mtd, ONENAND_CMD_RESET, 0, 0); + this->wait(mtd, FL_RESETING); + } else { + ops.mode = MTD_OPS_PLACE_OOB; + ops.ooblen = len; + ops.oobbuf = buf; + ops.ooboffs = 0; + ret = onenand_otp_write_oob_nolock(mtd, from, &ops); + *retlen = ops.oobretlen; + } return ret; } @@ -2327,16 +3180,21 @@ static int onenand_otp_walk(struct mtd_info *mtd, loff_t from, size_t len, if (density < ONENAND_DEVICE_DENSITY_512Mb) otp_pages = 20; else - otp_pages = 10; + otp_pages = 50; if (mode == MTD_OTP_FACTORY) { from += mtd->writesize * otp_pages; - otp_pages = 64 - otp_pages; + otp_pages = ONENAND_PAGES_PER_BLOCK - otp_pages; } /* Check User/Factory boundary */ - if (((mtd->writesize * otp_pages) - (from + len)) < 0) - return 0; + if (mode == MTD_OTP_USER) { + if (mtd->writesize * otp_pages < from + len) + return 0; + } else { + if (mtd->writesize * otp_pages < len) + return 0; + } onenand_get_device(mtd, FL_OTPING); while (len > 0 && otp_pages > 0) { @@ -2359,13 +3217,12 @@ static int onenand_otp_walk(struct mtd_info *mtd, loff_t from, size_t len, *retlen += sizeof(struct otp_info); } else { size_t tmp_retlen; - int size = len; ret = action(mtd, from, len, &tmp_retlen, buf); - buf += size; - len -= size; - *retlen += size; + buf += tmp_retlen; + len -= tmp_retlen; + *retlen += tmp_retlen; if (ret) break; @@ -2380,20 +3237,17 @@ static int onenand_otp_walk(struct mtd_info *mtd, loff_t from, size_t len, /** * onenand_get_fact_prot_info - [MTD Interface] Read factory OTP info * @param mtd MTD device structure - * @param buf the databuffer to put/get data * @param len number of bytes to read + * @param retlen pointer to variable to store the number of read bytes + * @param buf the databuffer to put/get data * * Read factory OTP info. */ -static int onenand_get_fact_prot_info(struct mtd_info *mtd, - struct otp_info *buf, size_t len) +static int onenand_get_fact_prot_info(struct mtd_info *mtd, size_t len, + size_t *retlen, struct otp_info *buf) { - size_t retlen; - int ret; - - ret = onenand_otp_walk(mtd, 0, len, &retlen, (u_char *) buf, NULL, MTD_OTP_FACTORY); - - return ret ? : retlen; + return onenand_otp_walk(mtd, 0, len, retlen, (u_char *) buf, NULL, + MTD_OTP_FACTORY); } /** @@ -2415,20 +3269,17 @@ static int onenand_read_fact_prot_reg(struct mtd_info *mtd, loff_t from, /** * onenand_get_user_prot_info - [MTD Interface] Read user OTP info * @param mtd MTD device structure - * @param buf the databuffer to put/get data + * @param retlen pointer to variable to store the number of read bytes * @param len number of bytes to read + * @param buf the databuffer to put/get data * * Read user OTP info. */ -static int onenand_get_user_prot_info(struct mtd_info *mtd, - struct otp_info *buf, size_t len) +static int onenand_get_user_prot_info(struct mtd_info *mtd, size_t len, + size_t *retlen, struct otp_info *buf) { - size_t retlen; - int ret; - - ret = onenand_otp_walk(mtd, 0, len, &retlen, (u_char *) buf, NULL, MTD_OTP_USER); - - return ret ? : retlen; + return onenand_otp_walk(mtd, 0, len, retlen, (u_char *) buf, NULL, + MTD_OTP_USER); } /** @@ -2475,30 +3326,47 @@ static int onenand_lock_user_prot_reg(struct mtd_info *mtd, loff_t from, size_t len) { struct onenand_chip *this = mtd->priv; - u_char *oob_buf = this->oob_buf; + u_char *buf = FLEXONENAND(this) ? this->page_buf : this->oob_buf; size_t retlen; int ret; + unsigned int otp_lock_offset = ONENAND_OTP_LOCK_OFFSET; - memset(oob_buf, 0xff, mtd->oobsize); - /* - * Note: OTP lock operation - * OTP block : 0xXXFC - * 1st block : 0xXXF3 (If chip support) - * Both : 0xXXF0 (If chip support) - */ - oob_buf[ONENAND_OTP_LOCK_OFFSET] = 0xFC; - + memset(buf, 0xff, FLEXONENAND(this) ? this->writesize + : mtd->oobsize); /* * Write lock mark to 8th word of sector0 of page0 of the spare0. * We write 16 bytes spare area instead of 2 bytes. + * For Flex-OneNAND, we write lock mark to 1st word of sector 4 of + * main area of page 49. */ + from = 0; - len = 16; + len = FLEXONENAND(this) ? mtd->writesize : 16; - ret = onenand_otp_walk(mtd, from, len, &retlen, oob_buf, do_otp_lock, MTD_OTP_USER); + /* + * Note: OTP lock operation + * OTP block : 0xXXFC XX 1111 1100 + * 1st block : 0xXXF3 (If chip support) XX 1111 0011 + * Both : 0xXXF0 (If chip support) XX 1111 0000 + */ + if (FLEXONENAND(this)) + otp_lock_offset = FLEXONENAND_OTP_LOCK_OFFSET; + + /* ONENAND_OTP_AREA | ONENAND_OTP_BLOCK0 | ONENAND_OTP_AREA_BLOCK0 */ + if (otp == 1) + buf[otp_lock_offset] = 0xFC; + else if (otp == 2) + buf[otp_lock_offset] = 0xF3; + else if (otp == 3) + buf[otp_lock_offset] = 0xF0; + else if (otp != 0) + printk(KERN_DEBUG "[OneNAND] Invalid option selected for OTP\n"); + + ret = onenand_otp_walk(mtd, from, len, &retlen, buf, do_otp_lock, MTD_OTP_USER); return ret ? : retlen; } + #endif /* CONFIG_MTD_ONENAND_OTP */ /** @@ -2512,19 +3380,38 @@ static int onenand_lock_user_prot_reg(struct mtd_info *mtd, loff_t from, static void onenand_check_features(struct mtd_info *mtd) { struct onenand_chip *this = mtd->priv; - unsigned int density, process; + unsigned int density, process, numbufs; /* Lock scheme depends on density and process */ density = onenand_get_density(this->device_id); process = this->version_id >> ONENAND_VERSION_PROCESS_SHIFT; + numbufs = this->read_word(this->base + ONENAND_REG_NUM_BUFFERS) >> 8; /* Lock scheme */ switch (density) { case ONENAND_DEVICE_DENSITY_4Gb: - this->options |= ONENAND_HAS_2PLANE; + if (ONENAND_IS_DDP(this)) + this->options |= ONENAND_HAS_2PLANE; + else if (numbufs == 1) { + this->options |= ONENAND_HAS_4KB_PAGE; + this->options |= ONENAND_HAS_CACHE_PROGRAM; + /* + * There are two different 4KiB pagesize chips + * and no way to detect it by H/W config values. + * + * To detect the correct NOP for each chips, + * It should check the version ID as workaround. + * + * Now it has as following + * KFM4G16Q4M has NOP 4 with version ID 0x0131 + * KFM4G16Q5M has NOP 1 with versoin ID 0x013e + */ + if ((this->version_id & 0xf) == 0xe) + this->options |= ONENAND_HAS_NOP_1; + } case ONENAND_DEVICE_DENSITY_2Gb: - /* 2Gb DDP don't have 2 plane */ + /* 2Gb DDP does not have 2 plane */ if (!ONENAND_IS_DDP(this)) this->options |= ONENAND_HAS_2PLANE; this->options |= ONENAND_HAS_UNLOCK_ALL; @@ -2542,12 +3429,28 @@ static void onenand_check_features(struct mtd_info *mtd) break; } + /* The MLC has 4KiB pagesize. */ + if (ONENAND_IS_MLC(this)) + this->options |= ONENAND_HAS_4KB_PAGE; + + if (ONENAND_IS_4KB_PAGE(this)) + this->options &= ~ONENAND_HAS_2PLANE; + + if (FLEXONENAND(this)) { + this->options &= ~ONENAND_HAS_CONT_LOCK; + this->options |= ONENAND_HAS_UNLOCK_ALL; + } + if (this->options & ONENAND_HAS_CONT_LOCK) printk(KERN_DEBUG "Lock scheme is Continuous Lock\n"); if (this->options & ONENAND_HAS_UNLOCK_ALL) printk(KERN_DEBUG "Chip support all block unlock\n"); if (this->options & ONENAND_HAS_2PLANE) printk(KERN_DEBUG "Chip has 2 plane\n"); + if (this->options & ONENAND_HAS_4KB_PAGE) + printk(KERN_DEBUG "Chip has 4KiB pagesize\n"); + if (this->options & ONENAND_HAS_CACHE_PROGRAM) + printk(KERN_DEBUG "Chip has cache program feature\n"); } /** @@ -2559,14 +3462,16 @@ static void onenand_check_features(struct mtd_info *mtd) */ static void onenand_print_device_info(int device, int version) { - int vcc, demuxed, ddp, density; + int vcc, demuxed, ddp, density, flexonenand; vcc = device & ONENAND_DEVICE_VCC_MASK; demuxed = device & ONENAND_DEVICE_IS_DEMUX; ddp = device & ONENAND_DEVICE_IS_DDP; density = onenand_get_density(device); - printk(KERN_INFO "%sOneNAND%s %dMB %sV 16-bit (0x%02x)\n", - demuxed ? "" : "Muxed ", + flexonenand = device & DEVICE_IS_FLEXONENAND; + printk(KERN_INFO "%s%sOneNAND%s %dMB %sV 16-bit (0x%02x)\n", + demuxed ? "" : "Muxed ", + flexonenand ? "Flex-" : "", ddp ? "(DDP)" : "", (16 << density), vcc ? "2.65/3.3" : "1.8", @@ -2576,6 +3481,7 @@ static void onenand_print_device_info(int device, int version) static const struct onenand_manufacturers onenand_manuf_ids[] = { {ONENAND_MFR_SAMSUNG, "Samsung"}, + {ONENAND_MFR_NUMONYX, "Numonyx"}, }; /** @@ -2605,23 +3511,281 @@ static int onenand_check_maf(int manuf) } /** - * onenand_probe - [OneNAND Interface] Probe the OneNAND device +* flexonenand_get_boundary - Reads the SLC boundary +* @param onenand_info - onenand info structure +**/ +static int flexonenand_get_boundary(struct mtd_info *mtd) +{ + struct onenand_chip *this = mtd->priv; + unsigned die, bdry; + int syscfg, locked; + + /* Disable ECC */ + syscfg = this->read_word(this->base + ONENAND_REG_SYS_CFG1); + this->write_word((syscfg | 0x0100), this->base + ONENAND_REG_SYS_CFG1); + + for (die = 0; die < this->dies; die++) { + this->command(mtd, FLEXONENAND_CMD_PI_ACCESS, die, 0); + this->wait(mtd, FL_SYNCING); + + this->command(mtd, FLEXONENAND_CMD_READ_PI, die, 0); + this->wait(mtd, FL_READING); + + bdry = this->read_word(this->base + ONENAND_DATARAM); + if ((bdry >> FLEXONENAND_PI_UNLOCK_SHIFT) == 3) + locked = 0; + else + locked = 1; + this->boundary[die] = bdry & FLEXONENAND_PI_MASK; + + this->command(mtd, ONENAND_CMD_RESET, 0, 0); + this->wait(mtd, FL_RESETING); + + printk(KERN_INFO "Die %d boundary: %d%s\n", die, + this->boundary[die], locked ? "(Locked)" : "(Unlocked)"); + } + + /* Enable ECC */ + this->write_word(syscfg, this->base + ONENAND_REG_SYS_CFG1); + return 0; +} + +/** + * flexonenand_get_size - Fill up fields in onenand_chip and mtd_info + * boundary[], diesize[], mtd->size, mtd->erasesize + * @param mtd - MTD device structure + */ +static void flexonenand_get_size(struct mtd_info *mtd) +{ + struct onenand_chip *this = mtd->priv; + int die, i, eraseshift, density; + int blksperdie, maxbdry; + loff_t ofs; + + density = onenand_get_density(this->device_id); + blksperdie = ((loff_t)(16 << density) << 20) >> (this->erase_shift); + blksperdie >>= ONENAND_IS_DDP(this) ? 1 : 0; + maxbdry = blksperdie - 1; + eraseshift = this->erase_shift - 1; + + mtd->numeraseregions = this->dies << 1; + + /* This fills up the device boundary */ + flexonenand_get_boundary(mtd); + die = ofs = 0; + i = -1; + for (; die < this->dies; die++) { + if (!die || this->boundary[die-1] != maxbdry) { + i++; + mtd->eraseregions[i].offset = ofs; + mtd->eraseregions[i].erasesize = 1 << eraseshift; + mtd->eraseregions[i].numblocks = + this->boundary[die] + 1; + ofs += mtd->eraseregions[i].numblocks << eraseshift; + eraseshift++; + } else { + mtd->numeraseregions -= 1; + mtd->eraseregions[i].numblocks += + this->boundary[die] + 1; + ofs += (this->boundary[die] + 1) << (eraseshift - 1); + } + if (this->boundary[die] != maxbdry) { + i++; + mtd->eraseregions[i].offset = ofs; + mtd->eraseregions[i].erasesize = 1 << eraseshift; + mtd->eraseregions[i].numblocks = maxbdry ^ + this->boundary[die]; + ofs += mtd->eraseregions[i].numblocks << eraseshift; + eraseshift--; + } else + mtd->numeraseregions -= 1; + } + + /* Expose MLC erase size except when all blocks are SLC */ + mtd->erasesize = 1 << this->erase_shift; + if (mtd->numeraseregions == 1) + mtd->erasesize >>= 1; + + printk(KERN_INFO "Device has %d eraseregions\n", mtd->numeraseregions); + for (i = 0; i < mtd->numeraseregions; i++) + printk(KERN_INFO "[offset: 0x%08x, erasesize: 0x%05x," + " numblocks: %04u]\n", + (unsigned int) mtd->eraseregions[i].offset, + mtd->eraseregions[i].erasesize, + mtd->eraseregions[i].numblocks); + + for (die = 0, mtd->size = 0; die < this->dies; die++) { + this->diesize[die] = (loff_t)blksperdie << this->erase_shift; + this->diesize[die] -= (loff_t)(this->boundary[die] + 1) + << (this->erase_shift - 1); + mtd->size += this->diesize[die]; + } +} + +/** + * flexonenand_check_blocks_erased - Check if blocks are erased + * @param mtd_info - mtd info structure + * @param start - first erase block to check + * @param end - last erase block to check + * + * Converting an unerased block from MLC to SLC + * causes byte values to change. Since both data and its ECC + * have changed, reads on the block give uncorrectable error. + * This might lead to the block being detected as bad. + * + * Avoid this by ensuring that the block to be converted is + * erased. + */ +static int flexonenand_check_blocks_erased(struct mtd_info *mtd, int start, int end) +{ + struct onenand_chip *this = mtd->priv; + int i, ret; + int block; + struct mtd_oob_ops ops = { + .mode = MTD_OPS_PLACE_OOB, + .ooboffs = 0, + .ooblen = mtd->oobsize, + .datbuf = NULL, + .oobbuf = this->oob_buf, + }; + loff_t addr; + + printk(KERN_DEBUG "Check blocks from %d to %d\n", start, end); + + for (block = start; block <= end; block++) { + addr = flexonenand_addr(this, block); + if (onenand_block_isbad_nolock(mtd, addr, 0)) + continue; + + /* + * Since main area write results in ECC write to spare, + * it is sufficient to check only ECC bytes for change. + */ + ret = onenand_read_oob_nolock(mtd, addr, &ops); + if (ret) + return ret; + + for (i = 0; i < mtd->oobsize; i++) + if (this->oob_buf[i] != 0xff) + break; + + if (i != mtd->oobsize) { + printk(KERN_WARNING "%s: Block %d not erased.\n", + __func__, block); + return 1; + } + } + + return 0; +} + +/** + * flexonenand_set_boundary - Writes the SLC boundary + * @param mtd - mtd info structure + */ +static int flexonenand_set_boundary(struct mtd_info *mtd, int die, + int boundary, int lock) +{ + struct onenand_chip *this = mtd->priv; + int ret, density, blksperdie, old, new, thisboundary; + loff_t addr; + + /* Change only once for SDP Flex-OneNAND */ + if (die && (!ONENAND_IS_DDP(this))) + return 0; + + /* boundary value of -1 indicates no required change */ + if (boundary < 0 || boundary == this->boundary[die]) + return 0; + + density = onenand_get_density(this->device_id); + blksperdie = ((16 << density) << 20) >> this->erase_shift; + blksperdie >>= ONENAND_IS_DDP(this) ? 1 : 0; + + if (boundary >= blksperdie) { + printk(KERN_ERR "%s: Invalid boundary value. " + "Boundary not changed.\n", __func__); + return -EINVAL; + } + + /* Check if converting blocks are erased */ + old = this->boundary[die] + (die * this->density_mask); + new = boundary + (die * this->density_mask); + ret = flexonenand_check_blocks_erased(mtd, min(old, new) + 1, max(old, new)); + if (ret) { + printk(KERN_ERR "%s: Please erase blocks " + "before boundary change\n", __func__); + return ret; + } + + this->command(mtd, FLEXONENAND_CMD_PI_ACCESS, die, 0); + this->wait(mtd, FL_SYNCING); + + /* Check is boundary is locked */ + this->command(mtd, FLEXONENAND_CMD_READ_PI, die, 0); + this->wait(mtd, FL_READING); + + thisboundary = this->read_word(this->base + ONENAND_DATARAM); + if ((thisboundary >> FLEXONENAND_PI_UNLOCK_SHIFT) != 3) { + printk(KERN_ERR "%s: boundary locked\n", __func__); + ret = 1; + goto out; + } + + printk(KERN_INFO "Changing die %d boundary: %d%s\n", + die, boundary, lock ? "(Locked)" : "(Unlocked)"); + + addr = die ? this->diesize[0] : 0; + + boundary &= FLEXONENAND_PI_MASK; + boundary |= lock ? 0 : (3 << FLEXONENAND_PI_UNLOCK_SHIFT); + + this->command(mtd, ONENAND_CMD_ERASE, addr, 0); + ret = this->wait(mtd, FL_ERASING); + if (ret) { + printk(KERN_ERR "%s: Failed PI erase for Die %d\n", + __func__, die); + goto out; + } + + this->write_word(boundary, this->base + ONENAND_DATARAM); + this->command(mtd, ONENAND_CMD_PROG, addr, 0); + ret = this->wait(mtd, FL_WRITING); + if (ret) { + printk(KERN_ERR "%s: Failed PI write for Die %d\n", + __func__, die); + goto out; + } + + this->command(mtd, FLEXONENAND_CMD_PI_UPDATE, die, 0); + ret = this->wait(mtd, FL_WRITING); +out: + this->write_word(ONENAND_CMD_RESET, this->base + ONENAND_REG_COMMAND); + this->wait(mtd, FL_RESETING); + if (!ret) + /* Recalculate device size on boundary change*/ + flexonenand_get_size(mtd); + + return ret; +} + +/** + * onenand_chip_probe - [OneNAND Interface] The generic chip probe * @param mtd MTD device structure * * OneNAND detection method: * Compare the values from command with ones from register */ -static int onenand_probe(struct mtd_info *mtd) +static int onenand_chip_probe(struct mtd_info *mtd) { struct onenand_chip *this = mtd->priv; - int bram_maf_id, bram_dev_id, maf_id, dev_id, ver_id; - int density; + int bram_maf_id, bram_dev_id, maf_id, dev_id; int syscfg; /* Save system configuration 1 */ syscfg = this->read_word(this->base + ONENAND_REG_SYS_CFG1); /* Clear Sync. Burst Read mode to read BootRAM */ - this->write_word((syscfg & ~ONENAND_SYS_CFG1_SYNC_READ), this->base + ONENAND_REG_SYS_CFG1); + this->write_word((syscfg & ~ONENAND_SYS_CFG1_SYNC_READ & ~ONENAND_SYS_CFG1_SYNC_WRITE), this->base + ONENAND_REG_SYS_CFG1); /* Send the command for reading device ID from BootRAM */ this->write_word(ONENAND_CMD_READID, this->base + ONENAND_BOOTRAM); @@ -2645,44 +3809,92 @@ static int onenand_probe(struct mtd_info *mtd) /* Read manufacturer and device IDs from Register */ maf_id = this->read_word(this->base + ONENAND_REG_MANUFACTURER_ID); dev_id = this->read_word(this->base + ONENAND_REG_DEVICE_ID); - ver_id = this->read_word(this->base + ONENAND_REG_VERSION_ID); /* Check OneNAND device */ if (maf_id != bram_maf_id || dev_id != bram_dev_id) return -ENXIO; + return 0; +} + +/** + * onenand_probe - [OneNAND Interface] Probe the OneNAND device + * @param mtd MTD device structure + */ +static int onenand_probe(struct mtd_info *mtd) +{ + struct onenand_chip *this = mtd->priv; + int dev_id, ver_id; + int density; + int ret; + + ret = this->chip_probe(mtd); + if (ret) + return ret; + + /* Device and version IDs from Register */ + dev_id = this->read_word(this->base + ONENAND_REG_DEVICE_ID); + ver_id = this->read_word(this->base + ONENAND_REG_VERSION_ID); + this->technology = this->read_word(this->base + ONENAND_REG_TECHNOLOGY); + /* Flash device information */ onenand_print_device_info(dev_id, ver_id); this->device_id = dev_id; this->version_id = ver_id; + /* Check OneNAND features */ + onenand_check_features(mtd); + density = onenand_get_density(dev_id); + if (FLEXONENAND(this)) { + this->dies = ONENAND_IS_DDP(this) ? 2 : 1; + /* Maximum possible erase regions */ + mtd->numeraseregions = this->dies << 1; + mtd->eraseregions = kzalloc(sizeof(struct mtd_erase_region_info) + * (this->dies << 1), GFP_KERNEL); + if (!mtd->eraseregions) + return -ENOMEM; + } + + /* + * For Flex-OneNAND, chipsize represents maximum possible device size. + * mtd->size represents the actual device size. + */ this->chipsize = (16 << density) << 20; - /* Set density mask. it is used for DDP */ - if (ONENAND_IS_DDP(this)) - this->density_mask = (1 << (density + 6)); - else - this->density_mask = 0; /* OneNAND page size & block size */ /* The data buffer size is equal to page size */ mtd->writesize = this->read_word(this->base + ONENAND_REG_DATA_BUFFER_SIZE); + /* We use the full BufferRAM */ + if (ONENAND_IS_4KB_PAGE(this)) + mtd->writesize <<= 1; + mtd->oobsize = mtd->writesize >> 5; /* Pages per a block are always 64 in OneNAND */ mtd->erasesize = mtd->writesize << 6; + /* + * Flex-OneNAND SLC area has 64 pages per block. + * Flex-OneNAND MLC area has 128 pages per block. + * Expose MLC erase size to find erase_shift and page_mask. + */ + if (FLEXONENAND(this)) + mtd->erasesize <<= 1; this->erase_shift = ffs(mtd->erasesize) - 1; this->page_shift = ffs(mtd->writesize) - 1; this->page_mask = (1 << (this->erase_shift - this->page_shift)) - 1; + /* Set density mask. it is used for DDP */ + if (ONENAND_IS_DDP(this)) + this->density_mask = this->chipsize >> (this->erase_shift + 1); /* It's real page size */ this->writesize = mtd->writesize; - /* REVIST: Multichip handling */ - - mtd->size = this->chipsize; + /* REVISIT: Multichip handling */ - /* Check OneNAND features */ - onenand_check_features(mtd); + if (FLEXONENAND(this)) + flexonenand_get_size(mtd); + else + mtd->size = this->chipsize; /* * We emulate the 4KiB page and 256KiB erase block size @@ -2718,8 +3930,8 @@ static void onenand_resume(struct mtd_info *mtd) if (this->state == FL_PM_SUSPENDED) onenand_release_device(mtd); else - printk(KERN_ERR "resume() called for the chip which is not" - "in suspended state\n"); + printk(KERN_ERR "%s: resume() called for the chip which is not " + "in suspended state\n", __func__); } /** @@ -2734,7 +3946,7 @@ static void onenand_resume(struct mtd_info *mtd) */ int onenand_scan(struct mtd_info *mtd, int maxchips) { - int i; + int i, ret; struct onenand_chip *this = mtd->priv; if (!this->read_word) @@ -2746,6 +3958,13 @@ int onenand_scan(struct mtd_info *mtd, int maxchips) this->command = onenand_command; if (!this->wait) onenand_setup_wait(mtd); + if (!this->bbt_wait) + this->bbt_wait = onenand_bbt_wait; + if (!this->unlock_all) + this->unlock_all = onenand_unlock_all; + + if (!this->chip_probe) + this->chip_probe = onenand_chip_probe; if (!this->read_bufferram) this->read_bufferram = onenand_read_bufferram; @@ -2769,16 +3988,20 @@ int onenand_scan(struct mtd_info *mtd, int maxchips) /* Allocate buffers, if necessary */ if (!this->page_buf) { this->page_buf = kzalloc(mtd->writesize, GFP_KERNEL); - if (!this->page_buf) { - printk(KERN_ERR "onenand_scan(): Can't allocate page_buf\n"); + if (!this->page_buf) + return -ENOMEM; +#ifdef CONFIG_MTD_ONENAND_VERIFY_WRITE + this->verify_buf = kzalloc(mtd->writesize, GFP_KERNEL); + if (!this->verify_buf) { + kfree(this->page_buf); return -ENOMEM; } +#endif this->options |= ONENAND_PAGEBUF_ALLOC; } if (!this->oob_buf) { this->oob_buf = kzalloc(mtd->oobsize, GFP_KERNEL); if (!this->oob_buf) { - printk(KERN_ERR "onenand_scan(): Can't allocate oob_buf\n"); if (this->options & ONENAND_PAGEBUF_ALLOC) { this->options &= ~ONENAND_PAGEBUF_ALLOC; kfree(this->page_buf); @@ -2796,6 +4019,17 @@ int onenand_scan(struct mtd_info *mtd, int maxchips) * Allow subpage writes up to oobsize. */ switch (mtd->oobsize) { + case 128: + if (FLEXONENAND(this)) { + this->ecclayout = &flexonenand_oob_128; + mtd->subpage_sft = 0; + } else { + this->ecclayout = &onenand_oob_128; + mtd->subpage_sft = 2; + } + if (ONENAND_IS_NOP_1(this)) + mtd->subpage_sft = 0; + break; case 64: this->ecclayout = &onenand_oob_64; mtd->subpage_sft = 2; @@ -2807,8 +4041,8 @@ int onenand_scan(struct mtd_info *mtd, int maxchips) break; default: - printk(KERN_WARNING "No OOB scheme defined for oobsize %d\n", - mtd->oobsize); + printk(KERN_WARNING "%s: No OOB scheme defined for oobsize %d\n", + __func__, mtd->oobsize); mtd->subpage_sft = 0; /* To prevent kernel oops */ this->ecclayout = &onenand_oob_32; @@ -2829,39 +4063,51 @@ int onenand_scan(struct mtd_info *mtd, int maxchips) mtd->oobavail = this->ecclayout->oobavail; mtd->ecclayout = this->ecclayout; + mtd->ecc_strength = 1; /* Fill in remaining MTD driver data */ - mtd->type = MTD_NANDFLASH; + mtd->type = ONENAND_IS_MLC(this) ? MTD_MLCNANDFLASH : MTD_NANDFLASH; mtd->flags = MTD_CAP_NANDFLASH; - mtd->erase = onenand_erase; - mtd->point = NULL; - mtd->unpoint = NULL; - mtd->read = onenand_read; - mtd->write = onenand_write; - mtd->read_oob = onenand_read_oob; - mtd->write_oob = onenand_write_oob; - mtd->panic_write = onenand_panic_write; + mtd->_erase = onenand_erase; + mtd->_point = NULL; + mtd->_unpoint = NULL; + mtd->_read = onenand_read; + mtd->_write = onenand_write; + mtd->_read_oob = onenand_read_oob; + mtd->_write_oob = onenand_write_oob; + mtd->_panic_write = onenand_panic_write; #ifdef CONFIG_MTD_ONENAND_OTP - mtd->get_fact_prot_info = onenand_get_fact_prot_info; - mtd->read_fact_prot_reg = onenand_read_fact_prot_reg; - mtd->get_user_prot_info = onenand_get_user_prot_info; - mtd->read_user_prot_reg = onenand_read_user_prot_reg; - mtd->write_user_prot_reg = onenand_write_user_prot_reg; - mtd->lock_user_prot_reg = onenand_lock_user_prot_reg; + mtd->_get_fact_prot_info = onenand_get_fact_prot_info; + mtd->_read_fact_prot_reg = onenand_read_fact_prot_reg; + mtd->_get_user_prot_info = onenand_get_user_prot_info; + mtd->_read_user_prot_reg = onenand_read_user_prot_reg; + mtd->_write_user_prot_reg = onenand_write_user_prot_reg; + mtd->_lock_user_prot_reg = onenand_lock_user_prot_reg; #endif - mtd->sync = onenand_sync; - mtd->lock = onenand_lock; - mtd->unlock = onenand_unlock; - mtd->suspend = onenand_suspend; - mtd->resume = onenand_resume; - mtd->block_isbad = onenand_block_isbad; - mtd->block_markbad = onenand_block_markbad; + mtd->_sync = onenand_sync; + mtd->_lock = onenand_lock; + mtd->_unlock = onenand_unlock; + mtd->_suspend = onenand_suspend; + mtd->_resume = onenand_resume; + mtd->_block_isbad = onenand_block_isbad; + mtd->_block_markbad = onenand_block_markbad; mtd->owner = THIS_MODULE; + mtd->writebufsize = mtd->writesize; /* Unlock whole block */ - onenand_unlock_all(mtd); + if (!(this->options & ONENAND_SKIP_INITIAL_UNLOCKING)) + this->unlock_all(mtd); + + ret = this->scan_bbt(mtd); + if ((!FLEXONENAND(this)) || ret) + return ret; + + /* Change Flex-OneNAND boundaries if required */ + for (i = 0; i < MAX_DIES; i++) + flexonenand_set_boundary(mtd, i, flex_bdry[2 * i], + flex_bdry[(2 * i) + 1]); - return this->scan_bbt(mtd); + return 0; } /** @@ -2872,12 +4118,8 @@ void onenand_release(struct mtd_info *mtd) { struct onenand_chip *this = mtd->priv; -#ifdef CONFIG_MTD_PARTITIONS /* Deregister partitions */ - del_mtd_partitions (mtd); -#endif - /* Deregister the device */ - del_mtd_device (mtd); + mtd_device_unregister(mtd); /* Free bad block table memory, if allocated */ if (this->bbm) { @@ -2886,10 +4128,15 @@ void onenand_release(struct mtd_info *mtd) kfree(this->bbm); } /* Buffers allocated by onenand_scan */ - if (this->options & ONENAND_PAGEBUF_ALLOC) + if (this->options & ONENAND_PAGEBUF_ALLOC) { kfree(this->page_buf); +#ifdef CONFIG_MTD_ONENAND_VERIFY_WRITE + kfree(this->verify_buf); +#endif + } if (this->options & ONENAND_OOBBUF_ALLOC) kfree(this->oob_buf); + kfree(mtd->eraseregions); } EXPORT_SYMBOL_GPL(onenand_scan); |