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Andreas Fenkart 183923d3e4 tools/env: ensure environment starts at erase block boundary 
56086921 added support for unaligned environments access.
U-boot itself does not support this:
- env_nand.c fails when using an unaligned offset. It produces an
  error in nand_erase_opts{drivers/mtd/nand/nand_util.c}
- in env_sf/env_flash the unused space at the end is preserved, but
  not in the beginning. block alignment is assumed
- env_sata/env_mmc aligns offset/length to the block size of the
  underlying device. data is silently redirected to the beginning of
  a block

There is seems no use case for unaligned environment. If there is
some useful data at the beginning of the the block (e.g. end of u-boot)
that would be very unsafe. If the redundant environments are hosted by
the same erase block then that invalidates the idea of double buffering.
It might be that unaligned access was allowed in the past, and that
people with legacy u-boot are trapped. But at the time of 56086921
it wasn't supported and due to reasons above I guess it was never
introduced.
I prefer to remove that (unused) feature in favor of simplicity

Signed-off-by: Andreas Fenkart <andreas.fenkart@digitalstrom.com>
Acked-by: Stefan Agner <stefan.agner@toradex.com>
 		2016-08-15 18:46:40 -04:00
..
buildman buildman: Add a quick-start note 2016-07-31 19:37:08 -06:00
dtoc dtoc: Correct the type widening code in fdt_fallback 2016-07-25 12:05:55 -04:00
easylogo Various Makefiles: Add SPDX-License-Identifier tags 2015-11-10 09:19:52 -05:00
env tools/env: ensure environment starts at erase block boundary 2016-08-15 18:46:40 -04:00
gdb Makefile: move BFD_ROOT_DIR to tools/gdb/Makefile 2014-02-19 11:07:50 -05:00
kermit tools: move kermit files to tools/kermit directory 2014-01-24 16:59:07 -05:00
logos dm: video: test: Test that bitmap display works correctly 2016-01-20 19:10:16 -07:00
omap Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
patman tools: patman: Handle missing 'END' in non-last commit of a series 2016-07-11 14:06:44 -06:00
scripts tools: fix define2mk.sed to not add quotes around negative integers 2016-06-13 07:46:29 +09:00
tbot test, tools: update tbot documentation 2016-05-13 11:25:59 -04:00
.gitignore tools: Add entry for generated tools/bin2header to tools/.gitignore 2016-05-27 15:47:56 -04:00
Makefile Only build the libfdt python module if 'swig' is available 2016-07-14 20:40:24 -06:00
aisimage.c imagetool: replace image registration function by linker_lists feature 2015-01-29 13:38:41 -05:00
aisimage.h Coding Style cleanup: remove trailing white space 2013-10-14 16:06:53 -04:00
atmel_pmecc_params.c Change my mailaddress 2016-05-02 18:37:09 -04:00
atmelimage.c Change my mailaddress 2016-05-02 18:37:09 -04:00
bin2header.c cmd: Fix license command 2016-03-22 12:16:13 -04:00
bmp_logo.c tools, bmp_logo: fix index from uint16_t to int to allow bigger logos 2013-08-10 10:48:00 +02:00
default_image.c Respect SOURCE_DATE_EPOCH when building FIT images. 2016-06-24 17:23:10 -04:00
dumpimage.c dumpimage: replace the term "datafile" by "subimage" 2015-01-29 13:38:41 -05:00
dumpimage.h includes: move openssl headers to include/u-boot 2014-06-19 11:19:04 -04:00
envcrc.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
fdt_host.h tools, fit_check_sign: verify a signed fit image 2014-03-21 16:40:38 -04:00
fdtgrep.c fdtgrep: Improve error handling with invalid device tree 2016-03-14 15:34:50 -06:00
fit_check_sign.c Fix bad return value checks (detected with Coccinelle) 2015-10-24 13:50:30 -04:00
fit_common.c mkimage: Automatically make space in FDT when full 2014-06-11 16:25:46 -04:00
fit_common.h mkimage: Automatically make space in FDT when full 2014-06-11 16:25:46 -04:00
fit_image.c tools: Add an error code when fit_handle_file() fails 2016-07-14 18:22:36 -04:00
fit_info.c tools, fit_info: increase buffer for command name 2014-08-14 11:20:24 +02:00
gen_eth_addr.c tools: gen_eth_addr: add getpid() to time(0) to avoid duplicated seed 2015-09-28 10:48:25 -04:00
genboardscfg.py tools/genboardscfg.py: remove bogus import subprocess 2016-05-27 15:47:56 -04:00
getline.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
getline.h getline: split out for darwin systems 2010-01-26 00:07:13 +01:00
gpheader.h tools: mkimage: add support for gpimage format 2014-04-17 17:24:38 -04:00
gpimage-common.c dumpimage: add 'T' option to explicitly set the image type 2015-01-29 13:38:41 -05:00
gpimage.c imagetool: replace image registration function by linker_lists feature 2015-01-29 13:38:41 -05:00
ifdtool.c x86: ifdtool: Support checking region overlap before U-Boot 2015-09-09 07:48:03 -06:00
ifdtool.h tools/ifdtool: Support writing multiple files (-w) simultaneously 2014-12-13 22:32:04 -07:00
image-host.c tools, rsa: Further minor cleanups on top of c236ebd and 2b9ec7 2016-07-25 12:01:36 -04:00
imagetool.c Respect SOURCE_DATE_EPOCH when building FIT images. 2016-06-24 17:23:10 -04:00
imagetool.h Respect SOURCE_DATE_EPOCH when building FIT images. 2016-06-24 17:23:10 -04:00
img2brec.sh Coding Style cleanup: replace leading SPACEs by TABs 2013-10-14 16:06:54 -04:00
img2srec.c img2srec: use standard types 2009-11-24 23:43:18 +01:00
imximage.c imx: tools: imximage: fix CLR bit command 2016-05-17 17:52:19 +02:00
imximage.h imximage: fix commands other than write_data 2015-10-07 13:43:15 +02:00
jtagconsole Blackfin: jtagconsole: disable output processing 2010-07-25 15:17:23 -04:00
kwbimage.c tools/kwbimage: fix size computations for v1 images 2015-11-29 16:02:44 +01:00
kwbimage.h tools/kwbimage: fix endianess issue 2015-11-29 16:02:44 +01:00
kwboot.c tools: kwboot: Add xmodem timeout option 2016-03-24 10:08:49 +01:00
lpc32xximage.c lpc32xx: add lpc32xx-spl.bin boot image target 2015-04-10 14:23:26 +02:00
microcode-tool x86: Add a script to process Intel microcode files 2014-12-18 17:26:08 -07:00
microcode-tool.py tools: microcode-tool: Support parsing header file with a license block 2016-01-13 12:20:14 +08:00
mingw_support.c Add LGPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:45:01 -04:00
mingw_support.h Add LGPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:45:01 -04:00
mkenvimage.c Patch to mkenvimage to handle text files with length that exceed env size 2015-03-28 12:07:47 -04:00
mkexynosspl.c Fix bad return value checks (detected with Coccinelle) 2015-10-24 13:50:30 -04:00
mkimage.c mkimage: Fix argument parsing with signature comment 2016-08-05 20:55:23 -04:00
mkimage.h includes: move openssl headers to include/u-boot 2014-06-19 11:19:04 -04:00
mksunxiboot.c sunxi: (mksunxiboot) signature to indicate "sunxi" SPL variant 2015-09-29 11:50:07 +02:00
moveconfig.py tools: moveconfig: support CONFIG_SYS_EXTRA_OPTIONS cleaning 2016-08-05 07:27:18 -04:00
mxsboot.c mxsboot: remove unused include 2016-02-21 11:09:19 +01:00
mxsimage.c imagetool: replace image registration function by linker_lists feature 2015-01-29 13:38:41 -05:00
mxsimage.h ARM: mxs: tools: Add support for boot progress display flag 2014-11-20 10:13:45 +01:00
ncb.c ncb: Check return value of write() 2009-04-28 01:16:46 +02:00
netconsole net: Make netconsole src and dest ports configurable 2012-09-24 13:17:24 -05:00
omapimage.c imagetool: replace image registration function by linker_lists feature 2015-01-29 13:38:41 -05:00
omapimage.h tools: mkimage: add support for gpimage format 2014-04-17 17:24:38 -04:00
os_support.c Add LGPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:45:01 -04:00
os_support.h Add LGPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:45:01 -04:00
pbl_crc32.c mkimage : Split out and clean pbl_crc32 for use by other image types 2014-06-05 14:38:38 -04:00
pbl_crc32.h mkimage : Split out and clean pbl_crc32 for use by other image types 2014-06-05 14:38:38 -04:00
pblimage.c imagetool: replace image registration function by linker_lists feature 2015-01-29 13:38:41 -05:00
pblimage.h Coding Style cleanup: remove trailing white space 2013-10-14 16:06:53 -04:00
proftool.c tools/proftool: fix use-after-free 2015-11-16 17:22:18 -05:00
relocate-rela.c relocate-rela: replace a magic number with sizeof(Elf64_Rela) 2014-02-13 15:16:47 +01:00
rkcommon.c mkimage: rockchip: add suport for rk33 serial 2016-07-25 20:46:45 -06:00
rkcommon.h rockchip: mkimage: use imagename to select spl hdr & spl size 2015-12-13 17:07:29 -07:00
rkimage.c rockchip: Check image name for the rksd image 2016-05-27 10:23:07 -06:00
rkmux.py rockchip: Add a script to parse datasheets 2016-01-21 20:42:37 -07:00
rksd.c rockchip: mkimage: use imagename to select spl hdr & spl size 2015-12-13 17:07:29 -07:00
rkspi.c rockchip: Drop a debug message when outputing SPI images 2016-01-08 07:59:06 -07:00
socfpgaimage.c tools: do not print error messages in verify_header() functions 2015-01-29 13:38:41 -05:00
ublimage.c imagetool: replace image registration function by linker_lists feature 2015-01-29 13:38:41 -05:00
ublimage.h Coding Style cleanup: remove trailing white space 2013-10-14 16:06:53 -04:00
ubsha1.c includes: move openssl headers to include/u-boot 2014-06-19 11:19:04 -04:00
xway-swap-bytes.c MIPS: INCA-IP: rename inca-swap-bytes host tool 2011-07-31 23:25:41 +09:00
zynqimage.c tools: zynqimage: Clean up check_params 2015-12-18 13:15:57 +01:00
zynqmpimage.c tools: zynqmpimage: Add Xilinx ZynqMP boot header generation 2016-05-24 11:15:01 +02:00