diff options
Diffstat (limited to 'package/boot/uboot-envtools/patches/0002-fw_env-fix-writing-environment-for-mtd-devices.patch')
| -rw-r--r-- | package/boot/uboot-envtools/patches/0002-fw_env-fix-writing-environment-for-mtd-devices.patch | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/package/boot/uboot-envtools/patches/0002-fw_env-fix-writing-environment-for-mtd-devices.patch b/package/boot/uboot-envtools/patches/0002-fw_env-fix-writing-environment-for-mtd-devices.patch new file mode 100644 index 0000000000..ebfe0e48d8 --- /dev/null +++ b/package/boot/uboot-envtools/patches/0002-fw_env-fix-writing-environment-for-mtd-devices.patch @@ -0,0 +1,114 @@ +From: Oliver Metz <oliver@freetz.org> +Subject: [PATCH v2 2/2] fw_env: fix writing environment for mtd devices + +Signed-off-by: Oliver Metz <oliver@freetz.org> +Tested-by: Luka Perkov <luka@openwrt.org> +--- + +v1 -> v2: + * fix checkpatch.pl warnings + +http://lists.denx.de/pipermail/u-boot/2013-August/161695.html +http://patchwork.ozlabs.org/patch/270994/ + + tools/env/fw_env.c | 70 ++++++++++++++++++++++++++++++++---------------------- + 1 file changed, 42 insertions(+), 28 deletions(-) + +--- a/tools/env/fw_env.c ++++ b/tools/env/fw_env.c +@@ -743,27 +743,39 @@ static int flash_write_buf (int dev, int + MEMGETBADBLOCK needs 64 bits */ + int rc; + +- blocklen = DEVESIZE (dev); ++ /* ++ * For mtd devices only offset and size of the environment do matter ++ */ ++ if (mtd_type == MTD_ABSENT) { ++ blocklen = count; ++ top_of_range = offset + count; ++ erase_len = blocklen; ++ blockstart = offset; ++ block_seek = 0; ++ write_total = blocklen; ++ } else { ++ blocklen = DEVESIZE(dev); + +- top_of_range = ((DEVOFFSET(dev) / blocklen) + +- ENVSECTORS (dev)) * blocklen; ++ top_of_range = ((DEVOFFSET(dev) / blocklen) + ++ ENVSECTORS(dev)) * blocklen; + +- erase_offset = (offset / blocklen) * blocklen; ++ erase_offset = (offset / blocklen) * blocklen; + +- /* Maximum area we may use */ +- erase_len = top_of_range - erase_offset; ++ /* Maximum area we may use */ ++ erase_len = top_of_range - erase_offset; + +- blockstart = erase_offset; +- /* Offset inside a block */ +- block_seek = offset - erase_offset; ++ blockstart = erase_offset; ++ /* Offset inside a block */ ++ block_seek = offset - erase_offset; + +- /* +- * Data size we actually have to write: from the start of the block +- * to the start of the data, then count bytes of data, and to the +- * end of the block +- */ +- write_total = ((block_seek + count + blocklen - 1) / +- blocklen) * blocklen; ++ /* ++ * Data size we actually write: from the start of the block ++ * to the start of the data, then count bytes of data, and ++ * to the end of the block ++ */ ++ write_total = ((block_seek + count + blocklen - 1) / ++ blocklen) * blocklen; ++ } + + /* + * Support data anywhere within erase sectors: read out the complete +@@ -834,17 +846,18 @@ static int flash_write_buf (int dev, int + continue; + } + +- erase.start = blockstart; +- ioctl (fd, MEMUNLOCK, &erase); +- /* These do not need an explicit erase cycle */ +- if (mtd_type != MTD_ABSENT && +- mtd_type != MTD_DATAFLASH) +- if (ioctl (fd, MEMERASE, &erase) != 0) { +- fprintf (stderr, "MTD erase error on %s: %s\n", +- DEVNAME (dev), +- strerror (errno)); +- return -1; +- } ++ if (mtd_type != MTD_ABSENT) { ++ erase.start = blockstart; ++ ioctl(fd, MEMUNLOCK, &erase); ++ /* These do not need an explicit erase cycle */ ++ if (mtd_type != MTD_DATAFLASH) ++ if (ioctl(fd, MEMERASE, &erase) != 0) { ++ fprintf(stderr, ++ "MTD erase error on %s: %s\n", ++ DEVNAME(dev), strerror(errno)); ++ return -1; ++ } ++ } + + if (lseek (fd, blockstart, SEEK_SET) == -1) { + fprintf (stderr, +@@ -863,7 +876,8 @@ static int flash_write_buf (int dev, int + return -1; + } + +- ioctl (fd, MEMLOCK, &erase); ++ if (mtd_type != MTD_ABSENT) ++ ioctl(fd, MEMLOCK, &erase); + + processed += blocklen; + block_seek = 0; |