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2018-06-07binman: Mark 'align-end' as implementedSimon Glass
The documentation says this is not implemented, but it is. Update the documentation, and clarify its operation. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-06-07binman: Add support for adding a name prefix to entriesSimon Glass
Sometimes we have several sections which repeat the same entries (e.g. for a read-only and read-write version of the same section). It is useful to be able to tell these entries apart by name. Add a new 'name-prefix' property for sections, which causes all entries within that section to have a given name prefix. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-06-07binman: Add support for outputing a map fileSimon Glass
It is useful to be able to see a list of regions in each image produced by binman. Add a -m option to output this information in a '.map' file alongside the image file. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-06-07binman: Tidy up some docs and commentsSimon Glass
Fix a few missing comments and tidy up some existing ones. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-06-07binman: Allow a single test to be executedSimon Glass
Provide an easy way to execute a single binman test by specifying it on the command line. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-06-07binman: Add documentation for pos-unset propertySimon Glass
This property is not documented. Add a note to the README. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-06-07binman: Add support for sectionsSimon Glass
It is useful to be able to split an image into multiple sections, each with its own size and position, for cases where a flash device has read-only and read-write portions. Add support for this. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-06-07binman: Avoid setting sys.path globallySimon Glass
At present we set the Python path at the start of binman so we can read modules in the 'etype' directory. This is a bit messy since it affects 'import' statements through binman. Adjust the code to set the path locally, just where it is needed. Move the 'entry' module in with the other base modules to help with this. It makes more sense here anyway since it does not implement an entry type. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-06-07binman: Rename Entry property to 'section'Simon Glass
Entries are now passed a Section object rather than an Image. Rename this property to avoid confusion. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-06-07binman: Rename ELF parameters to 'section'Simon Glass
We now pass a Section object to these functions rather than an Image. Rename the parameters to avoid confusion. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-06-07binman: Refactor much of the image code into 'section'Simon Glass
We want to support multiple sections within a single image. To do this, move most of the Image class implementation into a new Section class. An Image contains only a single Section, but at some point we will support a new 'section' entry, thus allowing Sections within Sections. Use the name 'bsection' for the module so we can use 'section' for the etype module. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-06-07binman: Allow unit addresses for binariesSimon Glass
Allow the same binary to appear multiple times in an image by using the device-tree unit-address feature (u-boot@0, u-boot@1). Signed-off-by: Simon Glass <sjg@chromium.org>
2018-06-07buildman: Add support for environment delta in summaryAlex Kiernan
When summarising the builds, add the -U option to emit delta lines for the default environment built into U-Boot at each commit. Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-06-07buildman: Extract environment as part of each buildAlex Kiernan
As we're building the boards, extract the default U-Boot environment to uboot.env so we can interrogate it later. Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-06-07patman: Fix unit tests for SPDXSimon Glass
The format of this line has changed. Update the patman test to suit. Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Alex Kiernan <alex.kiernan@gmail.com>
2018-05-31logos: provide U-Boot logoHeinrich Schuchardt
Provide a logo showing a submarine. U-Boot currently lacks an icon identifying the project. The German word U-Boot translates to submarine. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2018-05-31scripts/dtc: Update to upstream version v1.4.6-9-gaadd0b65c987Rob Herring
This adds the following commits from upstream: aadd0b65c987 checks: centralize printing of property names in failure messages 88960e398907 checks: centralize printing of node path in check_msg f1879e1a50eb Add limited read-only support for older (V2 and V3) device tree to libfdt. 37dea76e9700 srcpos: drop special handling of tab 65893da4aee0 libfdt: overlay: Add missing license 962a45ca034d Avoid installing pylibfdt when dependencies are missing cd6ea1b2bea6 Makefile: Split INSTALL out into INSTALL_{PROGRAM,LIB,DATA,SCRIPT} 51b3a16338df Makefile.tests: Add LIBDL make(1) variable for portability sake 333d533a8f4d Attempt to auto-detect stat(1) being used if not given proper invocation e54388015af1 dtc: Bump version to v1.4.6 a1fe86f380cb fdtoverlay: Switch from using alloca to malloc c8d5472de3ff tests: Improve compatibility with other platforms c81d389a10cc checks: add chosen node checks e671852042a7 checks: add aliases node checks d0c44ebe3f42 checks: check for #{size,address}-cells without child nodes 18a3d84bb802 checks: add string list check for *-names properties 8fe94fd6f19f checks: add string list check 6c5730819604 checks: add a string check for 'label' property a384191eba09 checks: fix sound-dai phandle with arg property check b260c4f610c0 Fix ambiguous grammar for devicetree rule fe667e382bac tests: Add some basic tests for the pci_bridge checks 7975f6422260 Fix widespread incorrect use of strneq(), replace with new strprefixeq() fca296445eab Add strstarts() helper function cc392f089007 tests: Check non-matching cases for fdt_node_check_compatible() bba26a5291c8 livetree: avoid assertion of orphan phandles with overlays c8f8194d76cc implement strnlen for systems that need it c8b38f65fdec libfdt: Remove leading underscores from identifiers 3b62fdaebfe5 Remove leading underscores from identifiers 2d45d1c5c65e Replace FDT_VERSION() with stringify() 2e6fe5a107b5 Fix some errors in comments b0ae9e4b0ceb tests: Correct warning in sw_tree1.c Commit c8b38f65fdec upstream ("libfdt: Remove leading underscores from identifiers") changed the multiple inclusion define protection, so the kernel's libfdt_env.h needs the corresponding update. Signed-off-by: Rob Herring <robh@kernel.org> [ Linux commit: 9130ba884640328bb78aaa4840e5ddf06ccafb1c ] [erosca: - Fixup conflicts in include/linux/libfdt_env.h caused by v2018.03-rc4 commit b08c8c487083 ("libfdt: move headers to <linux/libfdt.h> and <linux/libfdt_env.h>") - Fix build errors in lib/libfdt/fdt_ro.c, tools/libfdt/fdt_rw.c by: - s/_fdt_mem_rsv/fdt_mem_rsv_/ - s/_fdt_offset_ptr/fdt_offset_ptr_/ - s/_fdt_check_node_offset/fdt_check_node_offset_/ - s/_fdt_check_prop_offset/fdt_check_prop_offset_/ - s/_fdt_find_add_string/fdt_find_add_string_/] Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-05-22buildman: support newer gcc versions from kernel.orgDaniel Schwierzeck
Add support for gcc versions 7.3.0, 6.4.0 and 4.9.4. Also use a regex for matching the tarball names. Some gcc versions use '-ARCH-' instead of '_ARCH-'. As part of this, we switch TravisCI to also using these toolchains for all platforms. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-16tools: buildman: Don't use the working dir as build dirLothar Waßmann
When the U-Boot base directory happens to have the same name as the branch that buildman is directed to use via the '-b' option and no output directory is specified with '-o', buildman happily starts removing the whole U-Boot sources eventually only stopped with the error message: OSError: [Errno 20] Not a directory: '../<branch-name>/boards.cfg Add a check to avoid this and also deal with the case where '-o' points to the source directory, or any subdirectory of it. Finally, tidy up the confusing logic for removing the old tree when using -b. This is only done when building a branch. Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de> Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Lothar Waßmann <LW@KARO-electronics.de>
2018-05-11SPDX: Correct SPDX tags from recent xilinx mergeTom Rini
Correct the SPDX tag format. Fixes: 3b52847a451a ("Merge tag 'xilinx-for-v2018.07' of git://www.denx.de/git/u-boot-microblaze") Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-11Merge tag 'xilinx-for-v2018.07' of git://www.denx.de/git/u-boot-microblazeTom Rini
Xilinx changes for v2018.07 microblaze: - Align defconfig zynq: - Rework fpga initialization and cpuinfo handling zynqmp: - Add ZynqMP R5 support - Wire and enable watchdog on zcu100-revC - Setup MMU map for DDR at run time - Show board info based on DT and cleanup IDENT_STRING zynqmp tools: - Add read partition support - Add initial support for Xilinx bif format for boot.bin generation mmc: - Fix get_timer usage on 64bit cpus - Add support for SD3.0 UHS mode nand-zynq: - Add support for 16bit buswidth - Use address cycles from onfi params scsi: - convert ceva sata to UCLASS_AHCI timer: - Add Cadence TTC for ZynqMP r5 watchdog: - Minor cadence driver cleanup
2018-05-11tools: zynqmpimage: Add bif supportAlexander Graf
The officially described way to generate boot.bin files for ZynqMP is to describe the contents of the target binary using a file of the "bif" format. This file then links to other files that all get packed into a bootable image. This patch adds support to read such a .bif file and generate a respective ZynqMP boot.bin file that can include the normal image and pmu files, but also supports image partitions now. This makes it a handy replacement for the proprietary "bootgen" utility that is currently used to generate boot.bin files with FSBL. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-05-11tools: zynqmpimage: Move defines to headerAlexander Graf
We will add support for ZynqMP bif input files later, so let's move all structure definitions into a header file that can be used by that one as well. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-05-11tools: zynqmpimage: Add partition read supportAlexander Graf
The zynqmp image format has support for inline partitions which are used by FSBL to describe payloads that are loaded by FSBL itself. While we can't create images that contain partitions (yet), we should still at least be able to examine them and show the user what's inside when we analyze an image created by bootgen. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-05-10Merge git://git.denx.de/u-boot-socfpgaTom Rini
2018-05-10SPDX: Convert a few files that were missed beforeTom Rini
As part of the main conversion a few files were missed. These files had additional whitespace after the '*' and before the SPDX tag and my previous regex was too strict. This time I did a grep for all SPDX tags and then filtered out anything that matched the correct styles. Fixes: 83d290c56fab ("SPDX: Convert all of our single license tags to Linux Kernel style") Reported-by: Heinrich Schuchardt <xypron.debian@gmx.de> Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-10tools/file2include: avoid incorrect commentsHeinrich Schuchardt
Avoid creating incorrect comments like /* ...*/... */ by printing '.' instead of '*' inside comments. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2018-05-10tools/file2include: create Linux style SPDX headerHeinrich Schuchardt
file2include is used to convert a binary file to a C include. With the patch the SPDX header is written to the first line as expected by scripts/checkpatch.pl. Cf. https://www.kernel.org/doc/html/v4.16/process/license-rules.html Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2018-05-08tools: socfpga: Add SFP image V1 supportMarek Vasut
Add support for the SoCFPGA header v1 , which is used on Arria 10. Thus far the mkimage-socfpga image only supported header format v0 used on Cyclone V and Arria V, but is not supported on Arria 10. The layout of the v0 and v1 header is similar, yet there are a few differences, see the patch body for details. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Dinh Nguyen <dinguyen@kernel.org> Cc: Chin Liang See <chin.liang.see@intel.com>
2018-05-08tools: socfpga: Stop using global struct socfpga_imageMarek Vasut
The structure is passed around correctly, create local instances where necessary and zap the global struct socfpga_image instance. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Dinh Nguyen <dinguyen@kernel.org> Cc: Chin Liang See <chin.liang.see@intel.com>
2018-05-07SPDX: Convert all of our multiple license tags to Linux Kernel styleTom Rini
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have multiple licenses (in these cases, dual license) declared in the SPDX-License-Identifier tag. In this case we change from listing "LICENSE-A LICENSE-B" or "LICENSE-A or LICENSE-B" or "(LICENSE-A OR LICENSE-B)" to "LICENSE-A OR LICENSE-B" as per the Linux Kernel style document. Note that parenthesis are allowed so when they were used before we continue to use them. Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-30Merge git://git.denx.de/u-boot-imxTom Rini
2018-04-28tools: mkimage: Check for datafile when type is scriptAlex Kiernan
If generating a script image and no datafile has been passed in, mkimage dies with SIGSEGV: #0 __strchr_sse2 () at ../sysdeps/x86_64/multiarch/../strchr.S:32 #1 0x0000000000403818 in main at tools/mkimage.c:503 Add explicit test for datafile to fix this. Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
2018-04-28tools: mkenvimage: Fix possible segfault on stdin inputAlexander Dahl
The size of 'filebuf' was not increased as more and more bytes are read from stdin, but 'filebuf' was always reallocated to the same fix size. This works as long as only less bytes than the initial buffer size come in, for more input this will segfault. (It actually does, I tested that.) So for each loop cycle the buffer size has to be increased by the number of bytes we want to read. Signed-off-by: Alexander Dahl <ada@thorsis.com>
2018-04-28tools: mkenvimage: Fix read() stdin error handlingAlexander Dahl
On success read() returns the number of bytes read or zero for EOF. On error -1 is returned and errno is set, so the right way to test if read had failed is to test the return value instead of errno. Signed-off-by: Alexander Dahl <ada@thorsis.com>
2018-04-26Revert "imximage: Remove failure when no IVT offset is found"Fabio Estevam
This reverts commit b5b0e4e351e20a606de22db6a56ad6bc1e2aa8fd. Commit f916757300c1 ("imx: Create distinct pre-processed mkimage config files") provided a proper fix for the parallel mkimage config files build failure, so the original workaround can be safely reverted now. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by: Stefano Babic <sbabic@denx.de>
2018-04-26tools/imximage: Fix fruity lack of 0x prefix in DCD BlocksBryan O'Donoghue
commit 8519c9c98ad6 ("tools/imximage: use 0x prefix in HAB Blocks line") adds an 0x prefix to each HAB Block number to make it easier for host tools to process the HAB Block output, however it neglects to apply the same prefix to the DCD Blocks directive. You need the DCD Blocks directive if you are making a u-boot recovery image which the BootROM will accept via the USB upload utility. This disparity results in a fruity output like this with HAB Blocks prefixed but DCD Blocks not prefixed - which is pretty inconsistent. This patch fixes the difference assuming the original commit was a legitimate change. Old: Image Type: Freescale IMX Boot Image Image Ver: 2 (i.MX53/6/7 compatible) Mode: DCD Data Size: 430080 Bytes = 420.00 KiB = 0.41 MiB Load Address: 877ff420 Entry Point: 87800000 HAB Blocks: 0x877ff400 0x00000000 0x00066c00 DCD Blocks: 00910000 0000002c 000001d4 New: Image Type: Freescale IMX Boot Image Image Ver: 2 (i.MX53/6/7 compatible) Mode: DCD Data Size: 430080 Bytes = 420.00 KiB = 0.41 MiB Load Address: 877ff420 Entry Point: 87800000 HAB Blocks: 0x877ff400 0x00000000 0x00066c00 DCD Blocks: 0x00910000 0x0000002c 0x000001d4 Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Cc: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Cc: Fabio Estevam <fabio.estevam@nxp.com> Cc: Breno Lima <breno.lima@nxp.com> Cc: Stefano Babic <sbabic@denx.de> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2018-04-15Merge git://git.denx.de/u-boot-imxTom Rini
Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-15tools/imximage: use 0x prefix in HAB Blocks lineRasmus Villemoes
The u-boot-ivt.img.log file contains 0x prefixes in the HAB Blocks line, while the SPL.log does not. For consistency, and to make it easier to extract and put into a .csf file for use with NXP's code signing tool, add 0x prefixes here. Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Tested-by: Breno Lima <breno.lima@nxp.com>
2018-04-10fw_printenv: Fix crash due to incorrect size for malloc'ed string.Kristian Amlie
Using sizeof gives the size of the pointer only, not the string. This could easily lead to crashes when using -l argument. Signed-off-by: Kristian Amlie <kristian.amlie@northern.tech>
2018-04-10mkimage: do not fail if there is no print_header functionGuillaume GARDET
Commit 253c60a breaks the exit value of 'mkimage -T rkimage' and print the following error: mkimage: Can't print header for Rockchip Boot Image support: Success It is not a failure to not print headers, so just display the warning message, and finish the function properly. Signed-off-by: Guillaume GARDET <guillaume.gardet@free.fr> Cc: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Cc: Simon Glass <sjg@chromium.org> Cc: Tom Rini <trini@konsulko.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-04-06tools/mxsimage: Support building with LibreSSLHauke Mehrtens
The mxsimage utility fails to compile against LibreSSL version < 2.7.0 because LibreSSL says it is OpenSSL 2.0, but it does not support the complete OpenSSL 1.1 interface. LibreSSL defines OPENSSL_VERSION_NUMBER with 0x20000000L and therefor claims to have an API compatible with OpenSSL 2.0, but it implements EVP_MD_CTX_new(), EVP_MD_CTX_free() and EVP_CIPHER_CTX_reset() only starting with version 2.7.0, which is not yet released. OpenSSL implements this function since version 1.1.0. This commit will activate the compatibility code meant for OpenSSL < 1.1.0 also for LibreSSL version < 2.7.0. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Reviewed-by: Jonathan Gray <jsg@jsg.id.au>
2018-03-30kwbimage: Fix out of bounds accessAlexander Graf
The kwbimage format is reading beyond its header structure if it misdetects a Xilinx Zynq image and tries to read it. Fix it by sanity checking that the header we want to read fits inside our file size. Signed-off-by: Alexander Graf <agraf@suse.de> Tested-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Stefan Roese <sr@denx.de> Signed-off-by: Stefan Roese <sr@denx.de>
2018-03-23tools: xilinx: Fix zynq/zynqmp image recognitionMichal Simek
There is an issue to recognize zynq or zynqmp image because header checking is just the same. That's why zynqmp images are recognized as zynq one. Check unused fields which are initialized to zero in zynq format (__reserved1 0x38 and __reserved2 0x44) which are initialized for zynqmp. This should ensure that images are properly recognized by: ./tools/mkimage -l spl/boot.bin Also show image type as ZynqMP instead of Zynq which is confusing. Reported-by: Alexander Graf <agraf@suse.de> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Tested-by: Alexander Graf <agraf@suse.de>
2018-03-22tools: Make kwboot build if HOST_TOOLS_ALL=yTuomas Tynkkynen
The kwboot tool for Marvell devices isn't currently being built even if HOST_TOOLS_ALL is set. It doesn't appear to depend on any CONFIG_ options, so it seems appropriate to enable building it here. Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>
2018-03-19image: Add IH_OS_TEE for TEE chain-load bootBryan O'Donoghue
This patch adds a new type IH_OS_TEE. This new OS type will be used for chain-loading to Linux via a TEE. With this patch in-place you can generate a bootable OPTEE image like this: mkimage -A arm -T kernel -O tee -C none -d tee.bin uTee.optee where "tee.bin" is the input binary prefixed with an OPTEE header and uTee.optee is the output prefixed with a u-boot wrapper header. This image type "-T kernel -O tee" is differentiated from the existing IH_TYPE_TEE "-T tee" in that the IH_TYPE is installed by u-boot (flow control returns to u-boot) whereas for the new IH_OS_TEE control passes to the OPTEE firmware and the firmware chainloads onto Linux. Andrew Davis gave the following ASCII diagram: IH_OS_TEE: (mkimage -T kernel -O tee) Non-Secure Secure BootROM | ------------- | v SPL | v U-Boot ------> <----- OP-TEE | V Linux IH_TYPE_TEE: (mkimage -T tee) Non-Secure Secure BootROM | ------------- | v SPL -------> <----- OP-TEE | v U-Boot | V Linux Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Suggested-by: Andrew F. Davis <afd@ti.com> Cc: Harinarayan Bhatta <harinarayan@ti.com> Cc: Andrew F. Davis <afd@ti.com> Cc: Tom Rini <trini@konsulko.com> Cc: Kever Yang <kever.yang@rock-chips.com> Cc: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Cc: Peng Fan <peng.fan@nxp.com> Link: http://mrvan.github.io/optee-imx6ul
2018-03-19tools/mkimage: add support for STM32 image formatPatrick Delaunay
STM32MP157 bootrom needs a specific header for first boot stage. This patch adds support of this header in mkimage. Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-03-19tools: env: Implement atomic replace for filesystemAlex Kiernan
If the U-Boot environment is stored in a regular file and redundant operation isn't set, then write to a temporary file and perform an atomic rename. Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
2018-03-19tools: env: Refactor write path of flash_io()Alex Kiernan
Extract write path of flash_io() into a separate function. This patch should be a functional no-op. Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com> Reviewed-by: Stefano Babic <sbabic@denx.de>
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