diff options
author | Wolfgang Denk <wd@denx.de> | 2012-05-20 22:47:40 +0200 |
---|---|---|
committer | Wolfgang Denk <wd@denx.de> | 2012-05-20 22:47:40 +0200 |
commit | 8fa3d2b8161bb73b759c9db5c811c885ca5ec60c (patch) | |
tree | f7aab3c7e50e90c22338450b2f417b3fff12b8a3 /common | |
parent | 8bd07c9aaf4628931ab8da6eb0f83e517d9381a7 (diff) | |
parent | e52fee9b04157c3f5bd73bb122e95d0c6ebb2270 (diff) |
Merge branch 'master' of git://git.denx.de/u-boot-nand-flash
* 'master' of git://git.denx.de/u-boot-nand-flash:
NAND: Remove ONFI detection message to from bootup log
driver/mtd:IFC: Fix possible memory leak
driver/mtd: IFC NAND: Add support of ONFI NAND flash
mtd, nand: move some printfs to debug output.
nand_util: correct YAFFS image write function
powerpc/85xx: fix NAND boot linker scripts for -fpic
nand: extend .raw accesses to work on multiple pages
Diffstat (limited to 'common')
-rw-r--r-- | common/cmd_nand.c | 95 |
1 files changed, 71 insertions, 24 deletions
diff --git a/common/cmd_nand.c b/common/cmd_nand.c index 0fd3a6c414a..f060a317e07 100644 --- a/common/cmd_nand.c +++ b/common/cmd_nand.c @@ -11,7 +11,7 @@ * Added 16-bit nand support * (C) 2004 Texas Instruments * - * Copyright 2010 Freescale Semiconductor + * Copyright 2010, 2012 Freescale Semiconductor * The portions of this file whose copyright is held by Freescale and which * are not considered a derived work of GPL v2-only code may be distributed * and/or modified under the terms of the GNU General Public License as @@ -390,6 +390,41 @@ static void nand_print_and_set_info(int idx) setenv("nand_erasesize", buf); } +static int raw_access(nand_info_t *nand, ulong addr, loff_t off, ulong count, + int read) +{ + int ret = 0; + size_t rwsize; + + while (count--) { + /* Raw access */ + mtd_oob_ops_t ops = { + .datbuf = (u8 *)addr, + .oobbuf = ((u8 *)addr) + nand->writesize, + .len = nand->writesize, + .ooblen = nand->oobsize, + .mode = MTD_OOB_RAW + }; + + rwsize = nand->writesize + nand->oobsize; + if (read) + ret = nand->read_oob(nand, off, &ops); + else + ret = nand->write_oob(nand, off, &ops); + + if (ret) { + printf("%s: error at offset %llx, ret %d\n", + __func__, (long long)off, ret); + break; + } + + addr += nand->writesize + nand->oobsize; + off += nand->writesize; + } + + return ret; +} + int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) { int i, ret = 0; @@ -568,7 +603,9 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) { size_t rwsize; + ulong pagecount = 1; int read; + int raw; if (argc < 4) goto usage; @@ -577,13 +614,36 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) read = strncmp(cmd, "read", 4) == 0; /* 1 = read, 0 = write */ printf("\nNAND %s: ", read ? "read" : "write"); - if (arg_off_size(argc - 3, argv + 3, &dev, &off, &size) != 0) - return 1; nand = &nand_info[dev]; - rwsize = size; s = strchr(cmd, '.'); + + if (!strcmp(s, ".raw")) { + raw = 1; + + if (arg_off(argv[3], &dev, &off, &size)) + return 1; + + if (argc > 4 && !str2long(argv[4], &pagecount)) { + printf("'%s' is not a number\n", argv[4]); + return 1; + } + + if (pagecount * nand->writesize > size) { + puts("Size exceeds partition or device limit\n"); + return -1; + } + + rwsize = pagecount * (nand->writesize + nand->oobsize); + } else { + if (arg_off_size(argc - 3, argv + 3, &dev, + &off, &size) != 0) + return 1; + + rwsize = size; + } + if (!s || !strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i")) { if (read) @@ -609,7 +669,8 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) return 1; } ret = nand_write_skip_bad(nand, off, &rwsize, - (u_char *)addr, WITH_YAFFS_OOB); + (u_char *)addr, + WITH_INLINE_OOB); #endif } else if (!strcmp(s, ".oob")) { /* out-of-band data */ @@ -623,22 +684,8 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) ret = nand->read_oob(nand, off, &ops); else ret = nand->write_oob(nand, off, &ops); - } else if (!strcmp(s, ".raw")) { - /* Raw access */ - mtd_oob_ops_t ops = { - .datbuf = (u8 *)addr, - .oobbuf = ((u8 *)addr) + nand->writesize, - .len = nand->writesize, - .ooblen = nand->oobsize, - .mode = MTD_OOB_RAW - }; - - rwsize = nand->writesize + nand->oobsize; - - if (read) - ret = nand->read_oob(nand, off, &ops); - else - ret = nand->write_oob(nand, off, &ops); + } else if (raw) { + ret = raw_access(nand, addr, off, pagecount, read); } else { printf("Unknown nand command suffix '%s'.\n", s); return 1; @@ -732,9 +779,9 @@ U_BOOT_CMD( "nand write - addr off|partition size\n" " read/write 'size' bytes starting at offset 'off'\n" " to/from memory address 'addr', skipping bad blocks.\n" - "nand read.raw - addr off|partition\n" - "nand write.raw - addr off|partition\n" - " Use read.raw/write.raw to avoid ECC and access the page as-is.\n" + "nand read.raw - addr off|partition [count]\n" + "nand write.raw - addr off|partition [count]\n" + " Use read.raw/write.raw to avoid ECC and access the flash as-is.\n" #ifdef CONFIG_CMD_NAND_TRIMFFS "nand write.trimffs - addr off|partition size\n" " write 'size' bytes starting at offset 'off' from memory address\n" |