X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fmtd%2Fnand%2Fnand_util.c;h=149af83abd34aac37e46beda81de90d61ecd3808;hb=d344293a5b953eff1c8617e6b89703e82f7ca13f;hp=828cc338adbd4da11ba113c6b29cb6a6175a635b;hpb=859f24350e6e4313626f85161dd03f025a4dac59;p=u-boot diff --git a/drivers/mtd/nand/nand_util.c b/drivers/mtd/nand/nand_util.c index 828cc338ad..149af83abd 100644 --- a/drivers/mtd/nand/nand_util.c +++ b/drivers/mtd/nand/nand_util.c @@ -31,14 +31,14 @@ */ #include - -#if defined(CONFIG_CMD_NAND) && !defined(CFG_NAND_LEGACY) - #include #include #include #include + +#include +#include #include #include @@ -69,71 +69,27 @@ static int nand_block_bad_scrub(struct mtd_info *mtd, loff_t ofs, int getchip) int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts) { struct jffs2_unknown_node cleanmarker; - int clmpos = 0; - int clmlen = 8; erase_info_t erase; ulong erase_length; - int isNAND; int bbtest = 1; int result; int percent_complete = -1; int (*nand_block_bad_old)(struct mtd_info *, loff_t, int) = NULL; const char *mtd_device = meminfo->name; + struct mtd_oob_ops oob_opts; + struct nand_chip *chip = meminfo->priv; memset(&erase, 0, sizeof(erase)); + memset(&oob_opts, 0, sizeof(oob_opts)); erase.mtd = meminfo; erase.len = meminfo->erasesize; erase.addr = opts->offset; erase_length = opts->length; - isNAND = meminfo->type == MTD_NANDFLASH ? 1 : 0; - - if (opts->jffs2) { - cleanmarker.magic = cpu_to_je16 (JFFS2_MAGIC_BITMASK); - cleanmarker.nodetype = cpu_to_je16 (JFFS2_NODETYPE_CLEANMARKER); - if (isNAND) { - struct nand_oobinfo *oobinfo = &meminfo->oobinfo; - - /* check for autoplacement */ - if (oobinfo->useecc == MTD_NANDECC_AUTOPLACE) { - /* get the position of the free bytes */ - if (!oobinfo->oobfree[0][1]) { - printf(" Eeep. Autoplacement selected " - "and no empty space in oob\n"); - return -1; - } - clmpos = oobinfo->oobfree[0][0]; - clmlen = oobinfo->oobfree[0][1]; - if (clmlen > 8) - clmlen = 8; - } else { - /* legacy mode */ - switch (meminfo->oobsize) { - case 8: - clmpos = 6; - clmlen = 2; - break; - case 16: - clmpos = 8; - clmlen = 8; - break; - case 64: - clmpos = 16; - clmlen = 8; - break; - } - } - - cleanmarker.totlen = cpu_to_je32(8); - } else { - cleanmarker.totlen = - cpu_to_je32(sizeof(struct jffs2_unknown_node)); - } - cleanmarker.hdr_crc = cpu_to_je32( - crc32_no_comp(0, (unsigned char *) &cleanmarker, - sizeof(struct jffs2_unknown_node) - 4)); - } + cleanmarker.magic = cpu_to_je16 (JFFS2_MAGIC_BITMASK); + cleanmarker.nodetype = cpu_to_je16 (JFFS2_NODETYPE_CLEANMARKER); + cleanmarker.totlen = cpu_to_je32(8); /* scrub option allows to erase badblock. To prevent internal * check from erase() method, set block check method to dummy @@ -192,26 +148,20 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts) } /* format for JFFS2 ? */ - if (opts->jffs2) { - - /* write cleanmarker */ - if (isNAND) { - size_t written; - result = meminfo->write_oob(meminfo, - erase.addr + clmpos, - clmlen, - &written, - (unsigned char *) - &cleanmarker); - if (result != 0) { - printf("\n%s: MTD writeoob failure: %d\n", - mtd_device, result); - continue; - } - } else { - printf("\n%s: this erase routine only supports" - " NAND devices!\n", - mtd_device); + if (opts->jffs2 && chip->ecc.layout->oobavail >= 8) { + chip->ops.ooblen = 8; + chip->ops.datbuf = NULL; + chip->ops.oobbuf = (uint8_t *)&cleanmarker; + chip->ops.ooboffs = 0; + chip->ops.mode = MTD_OOB_AUTO; + + result = meminfo->write_oob(meminfo, + erase.addr, + &chip->ops); + if (result != 0) { + printf("\n%s: MTD writeoob failure: %d\n", + mtd_device, result); + continue; } } @@ -253,6 +203,9 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts) return 0; } +/* XXX U-BOOT XXX */ +#if 0 + #define MAX_PAGE_SIZE 2048 #define MAX_OOB_SIZE 64 @@ -263,443 +216,29 @@ static unsigned char data_buf[MAX_PAGE_SIZE]; static unsigned char oob_buf[MAX_OOB_SIZE]; /* OOB layouts to pass into the kernel as default */ -static struct nand_oobinfo none_oobinfo = { +static struct nand_ecclayout none_ecclayout = { .useecc = MTD_NANDECC_OFF, }; -static struct nand_oobinfo jffs2_oobinfo = { +static struct nand_ecclayout jffs2_ecclayout = { .useecc = MTD_NANDECC_PLACE, .eccbytes = 6, .eccpos = { 0, 1, 2, 3, 6, 7 } }; -static struct nand_oobinfo yaffs_oobinfo = { +static struct nand_ecclayout yaffs_ecclayout = { .useecc = MTD_NANDECC_PLACE, .eccbytes = 6, .eccpos = { 8, 9, 10, 13, 14, 15} }; -static struct nand_oobinfo autoplace_oobinfo = { +static struct nand_ecclayout autoplace_ecclayout = { .useecc = MTD_NANDECC_AUTOPLACE }; +#endif -/** - * nand_write_opts: - write image to NAND flash with support for various options - * - * @param meminfo NAND device to erase - * @param opts write options (@see nand_write_options) - * @return 0 in case of success - * - * This code is ported from nandwrite.c from Linux mtd utils by - * Steven J. Hill and Thomas Gleixner. - */ -int nand_write_opts(nand_info_t *meminfo, const nand_write_options_t *opts) -{ - int imglen = 0; - int pagelen; - int baderaseblock; - int blockstart = -1; - loff_t offs; - int readlen; - int oobinfochanged = 0; - int percent_complete = -1; - struct nand_oobinfo old_oobinfo; - ulong mtdoffset = opts->offset; - ulong erasesize_blockalign; - u_char *buffer = opts->buffer; - size_t written; - int result; - - if (opts->pad && opts->writeoob) { - printf("Can't pad when oob data is present.\n"); - return -1; - } - - /* set erasesize to specified number of blocks - to match - * jffs2 (virtual) block size */ - if (opts->blockalign == 0) { - erasesize_blockalign = meminfo->erasesize; - } else { - erasesize_blockalign = meminfo->erasesize * opts->blockalign; - } - - /* make sure device page sizes are valid */ - if (!(meminfo->oobsize == 16 && meminfo->oobblock == 512) - && !(meminfo->oobsize == 8 && meminfo->oobblock == 256) - && !(meminfo->oobsize == 64 && meminfo->oobblock == 2048)) { - printf("Unknown flash (not normal NAND)\n"); - return -1; - } - - /* read the current oob info */ - memcpy(&old_oobinfo, &meminfo->oobinfo, sizeof(old_oobinfo)); - - /* write without ecc? */ - if (opts->noecc) { - memcpy(&meminfo->oobinfo, &none_oobinfo, - sizeof(meminfo->oobinfo)); - oobinfochanged = 1; - } - - /* autoplace ECC? */ - if (opts->autoplace && (old_oobinfo.useecc != MTD_NANDECC_AUTOPLACE)) { - - memcpy(&meminfo->oobinfo, &autoplace_oobinfo, - sizeof(meminfo->oobinfo)); - oobinfochanged = 1; - } - - /* force OOB layout for jffs2 or yaffs? */ - if (opts->forcejffs2 || opts->forceyaffs) { - struct nand_oobinfo *oobsel = - opts->forcejffs2 ? &jffs2_oobinfo : &yaffs_oobinfo; - - if (meminfo->oobsize == 8) { - if (opts->forceyaffs) { - printf("YAFSS cannot operate on " - "256 Byte page size\n"); - goto restoreoob; - } - /* Adjust number of ecc bytes */ - jffs2_oobinfo.eccbytes = 3; - } - - memcpy(&meminfo->oobinfo, oobsel, sizeof(meminfo->oobinfo)); - } - - /* get image length */ - imglen = opts->length; - pagelen = meminfo->oobblock - + ((opts->writeoob != 0) ? meminfo->oobsize : 0); - - /* check, if file is pagealigned */ - if ((!opts->pad) && ((imglen % pagelen) != 0)) { - printf("Input block length is not page aligned\n"); - goto restoreoob; - } - - /* check, if length fits into device */ - if (((imglen / pagelen) * meminfo->oobblock) - > (meminfo->size - opts->offset)) { - printf("Image %d bytes, NAND page %d bytes, " - "OOB area %u bytes, device size %u bytes\n", - imglen, pagelen, meminfo->oobblock, meminfo->size); - printf("Input block does not fit into device\n"); - goto restoreoob; - } - - if (!opts->quiet) - printf("\n"); - - /* get data from input and write to the device */ - while (imglen && (mtdoffset < meminfo->size)) { - - WATCHDOG_RESET (); - - /* - * new eraseblock, check for bad block(s). Stay in the - * loop to be sure if the offset changes because of - * a bad block, that the next block that will be - * written to is also checked. Thus avoiding errors if - * the block(s) after the skipped block(s) is also bad - * (number of blocks depending on the blockalign - */ - while (blockstart != (mtdoffset & (~erasesize_blockalign+1))) { - blockstart = mtdoffset & (~erasesize_blockalign+1); - offs = blockstart; - baderaseblock = 0; - - /* check all the blocks in an erase block for - * bad blocks */ - do { - int ret = meminfo->block_isbad(meminfo, offs); - - if (ret < 0) { - printf("Bad block check failed\n"); - goto restoreoob; - } - if (ret == 1) { - baderaseblock = 1; - if (!opts->quiet) - printf("\rBad block at 0x%lx " - "in erase block from " - "0x%x will be skipped\n", - (long) offs, - blockstart); - } - - if (baderaseblock) { - mtdoffset = blockstart - + erasesize_blockalign; - } - offs += erasesize_blockalign - / opts->blockalign; - } while (offs < blockstart + erasesize_blockalign); - } - - readlen = meminfo->oobblock; - if (opts->pad && (imglen < readlen)) { - readlen = imglen; - memset(data_buf + readlen, 0xff, - meminfo->oobblock - readlen); - } - - /* read page data from input memory buffer */ - memcpy(data_buf, buffer, readlen); - buffer += readlen; - - if (opts->writeoob) { - /* read OOB data from input memory block, exit - * on failure */ - memcpy(oob_buf, buffer, meminfo->oobsize); - buffer += meminfo->oobsize; - - /* write OOB data first, as ecc will be placed - * in there*/ - result = meminfo->write_oob(meminfo, - mtdoffset, - meminfo->oobsize, - &written, - (unsigned char *) - &oob_buf); - - if (result != 0) { - printf("\nMTD writeoob failure: %d\n", - result); - goto restoreoob; - } - imglen -= meminfo->oobsize; - } - - /* write out the page data */ - result = meminfo->write(meminfo, - mtdoffset, - meminfo->oobblock, - &written, - (unsigned char *) &data_buf); - - if (result != 0) { - printf("writing NAND page at offset 0x%lx failed\n", - mtdoffset); - goto restoreoob; - } - imglen -= readlen; - - if (!opts->quiet) { - unsigned long long n = (unsigned long long) - (opts->length-imglen) * 100; - int percent; - - do_div(n, opts->length); - percent = (int)n; - - /* output progress message only at whole percent - * steps to reduce the number of messages printed - * on (slow) serial consoles - */ - if (percent != percent_complete) { - printf("\rWriting data at 0x%lx " - "-- %3d%% complete.", - mtdoffset, percent); - percent_complete = percent; - } - } - - mtdoffset += meminfo->oobblock; - } - - if (!opts->quiet) - printf("\n"); - -restoreoob: - if (oobinfochanged) { - memcpy(&meminfo->oobinfo, &old_oobinfo, - sizeof(meminfo->oobinfo)); - } - - if (imglen > 0) { - printf("Data did not fit into device, due to bad blocks\n"); - return -1; - } - - /* return happy */ - return 0; -} - -/** - * nand_read_opts: - read image from NAND flash with support for various options - * - * @param meminfo NAND device to erase - * @param opts read options (@see struct nand_read_options) - * @return 0 in case of success - * - */ -int nand_read_opts(nand_info_t *meminfo, const nand_read_options_t *opts) -{ - int imglen = opts->length; - int pagelen; - int baderaseblock; - int blockstart = -1; - int percent_complete = -1; - loff_t offs; - size_t readlen; - ulong mtdoffset = opts->offset; - u_char *buffer = opts->buffer; - int result; - - /* make sure device page sizes are valid */ - if (!(meminfo->oobsize == 16 && meminfo->oobblock == 512) - && !(meminfo->oobsize == 8 && meminfo->oobblock == 256) - && !(meminfo->oobsize == 64 && meminfo->oobblock == 2048)) { - printf("Unknown flash (not normal NAND)\n"); - return -1; - } - - pagelen = meminfo->oobblock - + ((opts->readoob != 0) ? meminfo->oobsize : 0); - - /* check, if length is not larger than device */ - if (((imglen / pagelen) * meminfo->oobblock) - > (meminfo->size - opts->offset)) { - printf("Image %d bytes, NAND page %d bytes, " - "OOB area %u bytes, device size %u bytes\n", - imglen, pagelen, meminfo->oobblock, meminfo->size); - printf("Input block is larger than device\n"); - return -1; - } - - if (!opts->quiet) - printf("\n"); - - /* get data from input and write to the device */ - while (imglen && (mtdoffset < meminfo->size)) { - - WATCHDOG_RESET (); - - /* - * new eraseblock, check for bad block(s). Stay in the - * loop to be sure if the offset changes because of - * a bad block, that the next block that will be - * written to is also checked. Thus avoiding errors if - * the block(s) after the skipped block(s) is also bad - * (number of blocks depending on the blockalign - */ - while (blockstart != (mtdoffset & (~meminfo->erasesize+1))) { - blockstart = mtdoffset & (~meminfo->erasesize+1); - offs = blockstart; - baderaseblock = 0; - - /* check all the blocks in an erase block for - * bad blocks */ - do { - int ret = meminfo->block_isbad(meminfo, offs); - - if (ret < 0) { - printf("Bad block check failed\n"); - return -1; - } - if (ret == 1) { - baderaseblock = 1; - if (!opts->quiet) - printf("\rBad block at 0x%lx " - "in erase block from " - "0x%x will be skipped\n", - (long) offs, - blockstart); - } - - if (baderaseblock) { - mtdoffset = blockstart - + meminfo->erasesize; - } - offs += meminfo->erasesize; - - } while (offs < blockstart + meminfo->erasesize); - } - - - /* read page data to memory buffer */ - result = meminfo->read(meminfo, - mtdoffset, - meminfo->oobblock, - &readlen, - (unsigned char *) &data_buf); - - if (result != 0) { - printf("reading NAND page at offset 0x%lx failed\n", - mtdoffset); - return -1; - } - - if (imglen < readlen) { - readlen = imglen; - } - - memcpy(buffer, data_buf, readlen); - buffer += readlen; - imglen -= readlen; - - if (opts->readoob) { - result = meminfo->read_oob(meminfo, - mtdoffset, - meminfo->oobsize, - &readlen, - (unsigned char *) - &oob_buf); - - if (result != 0) { - printf("\nMTD readoob failure: %d\n", - result); - return -1; - } - - - if (imglen < readlen) { - readlen = imglen; - } - - memcpy(buffer, oob_buf, readlen); - - buffer += readlen; - imglen -= readlen; - } - - if (!opts->quiet) { - unsigned long long n = (unsigned long long) - (opts->length-imglen) * 100; - int percent; - - do_div(n, opts->length); - percent = (int)n; - - /* output progress message only at whole percent - * steps to reduce the number of messages printed - * on (slow) serial consoles - */ - if (percent != percent_complete) { - if (!opts->quiet) - printf("\rReading data from 0x%lx " - "-- %3d%% complete.", - mtdoffset, percent); - percent_complete = percent; - } - } - - mtdoffset += meminfo->oobblock; - } - - if (!opts->quiet) - printf("\n"); - - if (imglen > 0) { - printf("Could not read entire image due to bad blocks\n"); - return -1; - } - - /* return happy */ - return 0; -} - +/* XXX U-BOOT XXX */ +#if 0 /****************************************************************************** * Support for locking / unlocking operations of some NAND devices *****************************************************************************/ @@ -784,7 +323,7 @@ int nand_get_lock_status(nand_info_t *meminfo, ulong offset) this->select_chip(meminfo, chipnr); - if ((offset & (meminfo->oobblock - 1)) != 0) { + if ((offset & (meminfo->writesize - 1)) != 0) { printf ("nand_get_lock_status: " "Start address must be beginning of " "nand page!\n"); @@ -813,7 +352,7 @@ int nand_get_lock_status(nand_info_t *meminfo, ulong offset) * @param meminfo nand mtd instance * @param start start byte address * @param length number of bytes to unlock (must be a multiple of - * page size nand->oobblock) + * page size nand->writesize) * * @return 0 on success, -1 in case of error */ @@ -839,14 +378,14 @@ int nand_unlock(nand_info_t *meminfo, ulong start, ulong length) goto out; } - if ((start & (meminfo->oobblock - 1)) != 0) { + if ((start & (meminfo->writesize - 1)) != 0) { printf ("nand_unlock: Start address must be beginning of " "nand page!\n"); ret = -1; goto out; } - if (length == 0 || (length & (meminfo->oobblock - 1)) != 0) { + if (length == 0 || (length & (meminfo->writesize - 1)) != 0) { printf ("nand_unlock: Length must be a multiple of nand page " "size!\n"); ret = -1; @@ -875,5 +414,184 @@ int nand_unlock(nand_info_t *meminfo, ulong start, ulong length) this->select_chip(meminfo, -1); return ret; } - #endif + +/** + * get_len_incl_bad + * + * Check if length including bad blocks fits into device. + * + * @param nand NAND device + * @param offset offset in flash + * @param length image length + * @return image length including bad blocks + */ +static size_t get_len_incl_bad (nand_info_t *nand, size_t offset, + const size_t length) +{ + size_t len_incl_bad = 0; + size_t len_excl_bad = 0; + size_t block_len; + + while (len_excl_bad < length) { + block_len = nand->erasesize - (offset & (nand->erasesize - 1)); + + if (!nand_block_isbad (nand, offset & ~(nand->erasesize - 1))) + len_excl_bad += block_len; + + len_incl_bad += block_len; + offset += block_len; + + if ((offset + len_incl_bad) >= nand->size) + break; + } + + return len_incl_bad; +} + +/** + * nand_write_skip_bad: + * + * Write image to NAND flash. + * Blocks that are marked bad are skipped and the is written to the next + * block instead as long as the image is short enough to fit even after + * skipping the bad blocks. + * + * @param nand NAND device + * @param offset offset in flash + * @param length buffer length + * @param buf buffer to read from + * @return 0 in case of success + */ +int nand_write_skip_bad(nand_info_t *nand, size_t offset, size_t *length, + u_char *buffer) +{ + int rval; + size_t left_to_write = *length; + size_t len_incl_bad; + u_char *p_buffer = buffer; + + /* Reject writes, which are not page aligned */ + if ((offset & (nand->writesize - 1)) != 0 || + (*length & (nand->writesize - 1)) != 0) { + printf ("Attempt to write non page aligned data\n"); + return -EINVAL; + } + + len_incl_bad = get_len_incl_bad (nand, offset, *length); + + if ((offset + len_incl_bad) >= nand->size) { + printf ("Attempt to write outside the flash area\n"); + return -EINVAL; + } + + if (len_incl_bad == *length) { + rval = nand_write (nand, offset, length, buffer); + if (rval != 0) { + printf ("NAND write to offset %x failed %d\n", + offset, rval); + return rval; + } + } + + while (left_to_write > 0) { + size_t block_offset = offset & (nand->erasesize - 1); + size_t write_size; + + if (nand_block_isbad (nand, offset & ~(nand->erasesize - 1))) { + printf ("Skip bad block 0x%08x\n", + offset & ~(nand->erasesize - 1)); + offset += nand->erasesize - block_offset; + continue; + } + + if (left_to_write < (nand->erasesize - block_offset)) + write_size = left_to_write; + else + write_size = nand->erasesize - block_offset; + + rval = nand_write (nand, offset, &write_size, p_buffer); + if (rval != 0) { + printf ("NAND write to offset %x failed %d\n", + offset, rval); + *length -= left_to_write; + return rval; + } + + left_to_write -= write_size; + offset += write_size; + p_buffer += write_size; + } + + return 0; +} + +/** + * nand_read_skip_bad: + * + * Read image from NAND flash. + * Blocks that are marked bad are skipped and the next block is readen + * instead as long as the image is short enough to fit even after skipping the + * bad blocks. + * + * @param nand NAND device + * @param offset offset in flash + * @param length buffer length, on return holds remaining bytes to read + * @param buffer buffer to write to + * @return 0 in case of success + */ +int nand_read_skip_bad(nand_info_t *nand, size_t offset, size_t *length, + u_char *buffer) +{ + int rval; + size_t left_to_read = *length; + size_t len_incl_bad; + u_char *p_buffer = buffer; + + len_incl_bad = get_len_incl_bad (nand, offset, *length); + + if ((offset + len_incl_bad) >= nand->size) { + printf ("Attempt to read outside the flash area\n"); + return -EINVAL; + } + + if (len_incl_bad == *length) { + rval = nand_read (nand, offset, length, buffer); + if (rval != 0) { + printf ("NAND read from offset %x failed %d\n", + offset, rval); + return rval; + } + } + + while (left_to_read > 0) { + size_t block_offset = offset & (nand->erasesize - 1); + size_t read_length; + + if (nand_block_isbad (nand, offset & ~(nand->erasesize - 1))) { + printf ("Skipping bad block 0x%08x\n", + offset & ~(nand->erasesize - 1)); + offset += nand->erasesize - block_offset; + continue; + } + + if (left_to_read < (nand->erasesize - block_offset)) + read_length = left_to_read; + else + read_length = nand->erasesize - block_offset; + + rval = nand_read (nand, offset, &read_length, p_buffer); + if (rval != 0) { + printf ("NAND read from offset %x failed %d\n", + offset, rval); + *length -= left_to_read; + return rval; + } + + left_to_read -= read_length; + offset += read_length; + p_buffer += read_length; + } + + return 0; +}