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2021-04-14image-fit: Accept OP-TEE images when booting a FITAlexandru Gagniuc
OP-TEE images are normally packaged with type = "tee; os = "tee"; However, fit_image_load() thinks that is somehow invalid. However if they were declared as type = "kernel", os = "linux", fit_image_load() would happily accept them and allow the boot to continue. There is no technical limitation to excluding "tee". Allowing "tee" images is useful in a boot flow where OP-TEE is executed before linux. In fact, I think it's unintuitive for a "load"ing function to also do parsing and contain a bunch ad-hoc heuristics that only its caller might know. But I don't make the rules, I just write fixes. In more polite terms: refactoring the fit_image API is beyond the scope of this change. Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2021-04-14image-fit: Accept IH_TYPE_FIRMWARE in fit_image_load() as validAlexandru Gagniuc
Consider the following FIT: images { whipple {}; }; configurations { conf-1 { firmware = "whipple"; }; }; Getting the 'firmware' image with fit_image_load() is not possible, as it doesn't understand 'firmware =' properties. Although one could pass IH_TYPE_FIRMWARE for 'image_type', this needs to be converted to a "firmware" string for FDT lookup -- exactly what this change does. Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2021-03-29Merge tag 'v2021.04-rc5' into nextTom Rini
Prepare v2021.04-rc5
2021-03-27sandbox: image: Allow sandbox to load any imageSimon Glass
Sandbox is special in that it is used for testing and it does not match any particular target architecture. Allow it to load an image from any architecture, so that 'bootm' can be used as needed. Signed-off-by: Simon Glass <sjg@chromium.org>
2021-03-17image: Avoid -ENODATA in host toolsSimon Glass
Unfortunately -ENODATA is not available in OpenBSD. Use -EBADMSG instead, to indicate a missing timestamp. Fixes: c5819701a3d image: Adjust the workings of fit_check_format() Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
2021-02-15image: Check for unit addresses in FITsSimon Glass
Using unit addresses in a FIT is a security risk. Add a check for this and disallow it. CVE-2021-27138 Signed-off-by: Simon Glass <sjg@chromium.org> Reported-by: Bruce Monroe <bruce.monroe@intel.com> Reported-by: Arie Haenel <arie.haenel@intel.com> Reported-by: Julien Lenoir <julien.lenoir@intel.com>
2021-02-15image: Add an option to do a full check of the FITSimon Glass
Some strange modifications of the FIT can introduce security risks. Add an option to check it thoroughly, using libfdt's fdt_check_full() function. Enable this by default if signature verification is enabled. CVE-2021-27097 Signed-off-by: Simon Glass <sjg@chromium.org> Reported-by: Bruce Monroe <bruce.monroe@intel.com> Reported-by: Arie Haenel <arie.haenel@intel.com> Reported-by: Julien Lenoir <julien.lenoir@intel.com>
2021-02-15image: Adjust the workings of fit_check_format()Simon Glass
At present this function does not accept a size for the FIT. This means that it must be read from the FIT itself, introducing potential security risk. Update the function to include a size parameter, which can be invalid, in which case fit_check_format() calculates it. For now no callers pass the size, but this can be updated later. Also adjust the return value to an error code so that all the different types of problems can be distinguished by the user. Signed-off-by: Simon Glass <sjg@chromium.org> Reported-by: Bruce Monroe <bruce.monroe@intel.com> Reported-by: Arie Haenel <arie.haenel@intel.com> Reported-by: Julien Lenoir <julien.lenoir@intel.com>
2021-02-15fit: Don't allow verification of images with @ nodesSimon Glass
When searching for a node called 'fred', any unit address appended to the name is ignored by libfdt, meaning that 'fred' can match 'fred@1'. This means that we cannot be sure that the node originally intended is the one that is used. Disallow use of nodes with unit addresses. Update the forge test also, since it uses @ addresses. CVE-2021-27138 Signed-off-by: Simon Glass <sjg@chromium.org> Reported-by: Bruce Monroe <bruce.monroe@intel.com> Reported-by: Arie Haenel <arie.haenel@intel.com> Reported-by: Julien Lenoir <julien.lenoir@intel.com>
2021-02-02common: Drop asm/global_data.h from common headerSimon Glass
Move this out of the common header and include it only where needed. In a number of cases this requires adding "struct udevice;" to avoid adding another large header or in other cases replacing / adding missing header files that had been pulled in, very indirectly. Finally, we have a few cases where we did not need to include <asm/global_data.h> at all, so remove that include. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com>
2021-02-01common: Kconfig.boot: Add FIT_PRINT config optionRavik Hasija
Config allows to disable printing contents of fitImage to optimize boottime. Signed-off-by: Ravik Hasija <rahasij@linux.microsoft.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2021-01-22image-fit: Fix FIT_CIPHER linkingJoel Stanley
When CONFIG_FIT_CIPHER=y and CONFIG_FIT_SIGNATURE=n is there is no implementation of image_get_host_blob for mkimage/dumpimage: /usr/bin/ld: tools/common/image-cipher.o: in function `fit_image_decrypt_data': image-cipher.c:(.text+0x9a): undefined reference to `image_get_host_blob' Move the implementation to a common file so it can be shaed between image-cipher.c and image-fit-sig.c. Signed-off-by: Joel Stanley <joel@jms.id.au>
2021-01-13image-fit: fit_check_format check for valid FDTHeinrich Schuchardt
fit_check_format() must check that the buffer contains a flattened device tree before calling any device tree library functions. Failure to do may cause segmentation faults. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2021-01-05image: support board_fit_config_name_matchSebastian Reichel
Support reusing board_fit_config_name_match() to automatically select a sensible default configuration for booting fitImages using 'bootm'. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-05image: cleanup pre-processor usageSebastian Reichel
Replace most #ifdef checks for USE_HOSTCC and CONFIG_* with normal if instructions. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-10-27spl: fdt: Record load/entry fit-images entries in 64bit formatMichal Simek
The commit 9f45aeb93727 ("spl: fit: implement fdt_record_loadable") which introduced fdt_record_loadable() state there spl_fit.c is not 64bit safe. Based on my tests on Xilinx ZynqMP zcu102 platform there shouldn't be a problem to record these addresses in 64bit format. The patch adds support for systems which need to load images above 4GB. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-06-12Add support for SHA384 and SHA512Reuben Dowle
The current recommendation for best security practice from the US government is to use SHA384 for TOP SECRET [1]. This patch adds support for SHA384 and SHA512 in the hash command, and also allows FIT images to be hashed with these algorithms, and signed with sha384,rsaXXXX and sha512,rsaXXXX The SHA implementation is adapted from the linux kernel implementation. [1] Commercial National Security Algorithm Suite http://www.iad.gov/iad/programs/iad-initiatives/cnsa-suite.cfm Signed-off-by: Reuben Dowle <reuben.dowle@4rf.com>
2020-05-18common: Drop log.h from common headerSimon Glass
Move this header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18common: Drop image.h from common headerSimon Glass
Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-04-07Merge tag 'xilinx-for-v2020.07' of ↵Tom Rini
https://gitlab.denx.de/u-boot/custodians/u-boot-microblaze into next Xilinx changes for v2020.07 common: - Align ENV_FAT_INTERFACE - Fix MAC address source print log - Improve based autodetection code xilinx: - Enable netconsole Microblaze: - Setup default ENV_OFFSET/ENV_SECT_SIZE Zynq: - Multiple DT updates/fixes - Use DEVICE_TREE environment variable for DTB selection - Switch to single zynq configuration - Enable NOR flash via DM - Minor SPL print removal - Enable i2c mux driver ZynqMP: - Print multiboot register - Enable cache commands in mini mtest - Multiple DT updates/fixes - Fix firmware probing when driver is not enabled - Specify 3rd backup RAM boot mode in SPL - Add SPL support for zcu102 v1.1 and zcu111 revA - Redesign debug uart enabling and psu_init delay - Enable full u-boot run from EL3 - Enable u-boot.itb generation without ATF with U-Boot in EL3 Versal: - Enable distro default - Enable others SPI flashes - Enable systems without DDR Drivers: - Gem: - Flush memory after freeing - Handle mdio bus separately - Watchdog: - Get rid of unused global data pointer - Enable window watchdog timer - Serial: - Change reinitialization logic in zynq serial driver Signed-off-by: Tom Rini <trini@konsulko.com>
2020-04-01image: Use constants for 'required' and 'key-name-hint'Simon Glass
These are used in multiple places so update them to use a shared #define. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Philippe Reynes <philippe.reynes@softathome.com>
2020-04-01image: Be a little more verbose when checking signaturesSimon Glass
It is useful to be a little more specific about what is being checked. Update a few messages to help with this. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-04-01image: Correct comment for fit_conf_get_node()Simon Glass
This should mention that conf_uname can be NULL and should be in the header file. Fix this. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-03-31Merge branch 'next' of git://git.denx.de/u-boot-usb into nextTom Rini
2020-03-31image-fit: Allow loading FIT image for VxWorksLihua Zhao
This adds the check against IH_OS_VXWORKS during FIT image load, to allow loading FIT image for VxWorks. Signed-off-by: Lihua Zhao <lihua.zhao@windriver.com> Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-03-13fit: check return value of fit_image_get_data_size()Heinrich Schuchardt
GCC-10 reports: In file included from tools/common/image-fit.c:1: include/image.h: In function ‘fit_image_get_data_and_size’: ./tools/../common/image-fit.c:1015:9: warning: ‘len’ may be used uninitialized in this function [-Wmaybe-uninitialized] 1015 | *size = len; | ~~~~~~^~~~~ ./tools/../common/image-fit.c:996:6: note: ‘len’ was declared here 996 | int len; | ^~~ Add the missing check of the return value of fit_image_get_data_size(). Fixes: c3c863880479 ("add FIT data-position & data-offset property support") Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
2020-03-12lib: rsa: decouple rsa from FIT image verificationAKASHI Takahiro
Introduce new configuration, CONFIG_RSA_VERIFY which will decouple building RSA functions from FIT verification and allow for adding a RSA-based signature verification for other file formats, in particular PE file for UEFI secure boot. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-01-17u-boot: fit: add support to decrypt fit with aesPhilippe Reynes
This commit add to u-boot the support to decrypt fit image encrypted with aes. The FIT image contains the key name and the IV name. Then u-boot look for the key and IV in his device tree and decrypt images before moving to the next stage. Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
2020-01-17mkimage: fit: add support to encrypt image with aesPhilippe Reynes
This commit add the support of encrypting image with aes in mkimage. To enable the ciphering, a node cipher with a reference to a key and IV (Initialization Vector) must be added to the its file. Then mkimage add the encrypted image to the FIT and add the key and IV to the u-boot device tree. Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
2020-01-07image: Add IH_OS_EFI for EFI chain-load bootCristian Ciocaltea
Add a new OS type to be used for chain-loading an EFI compatible firmware or boot loader like GRUB2, possibly in a verified boot scenario. Bellow is sample ITS file that generates a FIT image supporting secure boot. Please note the presence of 'os = "efi";' line, which identifies the currently introduced OS type: / { #address-cells = <1>; images { efi-grub { description = "GRUB EFI"; data = /incbin/("bootarm.efi"); type = "kernel_noload"; arch = "arm"; os = "efi"; compression = "none"; load = <0x0>; entry = <0x0>; hash-1 { algo = "sha256"; }; }; }; configurations { default = "config-grub"; config-grub { kernel = "efi-grub"; signature-1 { algo = "sha256,rsa2048"; sign-images = "kernel"; }; }; }; }; Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com> Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-12-02crc32: Use the crc.h header for crc functionsSimon Glass
Drop inclusion of crc.h in common.h and use the correct header directly instead. With this we can drop the conflicting definition in fw_env.h and rely on the crc.h header, which is already included. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2019-08-07fit: Do not automatically decompress ramdisk imagesJulius Werner
The Linux ramdisk should always be decompressed by the kernel itself, not by U-Boot. Therefore, the 'compression' node in the FIT image should always be set to "none" for ramdisk images, since the only point of using that node is if you want U-Boot to do the decompression itself. Yet some systems populate the node to the compression algorithm used by the kernel instead. This used to be ignored, but now that we support decompression of all image types it becomes a problem. Since ramdisks should never be decompressed by U-Boot anyway, this patch adds a special exception for them to avoid these issues. Still, setting the 'compression' node like that is wrong in the first place, so we still want to print out a warning so that third-party distributions doing this can notice and fix it. Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Heiko Schocher <hs@denx.de> Tested-by: Heiko Schocher <hs@denx.de> Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
2019-07-29fit: Support compat string property in configuration nodeJulius Werner
This patch adds support for an optional optimization to compatible string matching where the compatible string property from the root node of the kernel FDT can be copied into the configuration node of the FIT image. This is most useful when using compressed FDTs or when using FDT overlays, where the traditional extraction of the compatible string from the kernel FDT itself is not easily possible. Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org>
2019-07-29fit: Support compression for non-kernel components (e.g. FDT)Julius Werner
This patch adds support for compressing non-kernel image nodes in a FIT image (kernel nodes could already be compressed previously). This can reduce the size of FIT images and therefore improve boot times (especially when an image bundles many different kernel FDTs). The images will automatically be decompressed on load. This patch does not support extracting compatible strings from compressed FDTs, so it's not very helpful in conjunction with CONFIG_FIT_BEST_MATCH yet, but it can already be used in environments that select the configuration to load explicitly. Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
2019-04-22fit: load all fragments from the extra configurationsPeter Ujfalusi
Currently only the first fdt is loaded from the extra configuration of FIT image. If the configuration have multiple fdt, load them all as well. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
2018-12-03rsa: add a structure for the paddingPhilippe Reynes
The rsa signature use a padding algorithm. By default, we use the padding pkcs-1.5. In order to add some new padding algorithm, we add a padding framework to manage several padding algorithm. The choice of the padding is done in the file .its. Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-07-10fit: Verify all configuration signaturesMarek Vasut
Rather than verifying configuration signature of the configuration node containing the kernel image types, verify all configuration nodes, even those that do not contain kernel images. This is useful when the nodes contain ie. standalone OSes or U-Boot. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Tom Rini <trini@konsulko.com> Cc: Pantelis Antoniou <pantelis.antoniou@konsulko.com> Cc: Simon Glass <sjg@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-05-26add FIT data-position & data-offset property supportKelvin Cheung
Add FIT data-position & data-offset property support for bootm, which were already supported in SPL. Signed-off-by: Kelvin Cheung <keguang.zhang@gmail.com>
2018-05-23fit: Add standalone image type handlingMarek Vasut
Just add IH_TYPE_STANDALONE to fit_get_image_type_property(). Signed-off-by: Marek Vasut <marex@denx.de> Cc: Pantelis Antoniou <pantelis.antoniou@konsulko.com> Cc: Simon Glass <sjg@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-05-23fit: Add empty fit_print_contents() and fit_image_print()Marek Vasut
These functions may be needed in SPL, so add empty variants of them if CONFIG_SPL_FIT_PRINT is disabled. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Pantelis Antoniou <pantelis.antoniou@konsulko.com> Cc: Simon Glass <sjg@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-05-23fit: Fix CONFIG_FIT_SPL_PRINTMarek Vasut
Rename CONFIG_FIT_SPL_PRINT to CONFIG_SPL_FIT_PRINT and add Kconfig entry for it. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Pantelis Antoniou <pantelis.antoniou@konsulko.com> Cc: Simon Glass <sjg@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-05-23FIT: Make fit_conf_print() be a static functionTom Rini
We only call fit_conf_print from one place in the code, so mark it as static and move it up to where we call it. This in turn has us move a few other already static functions up further as well. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-08image: fit: Show signatures and hashes for configurationsClément Péron
The signature/hash information are displayed for images but nor for configurations. Add subnodes printing in fit_conf_print() like it's done in fit_image_print() Signed-off-by: Clément Péron <peron.clem@gmail.com> [trini: Add guards around fit_conf_print to avoid warnings] 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>
2018-04-06image: fit: Show information about OS type in firwmare case tooMichal Simek
SPL ATF implementation requires FIT image with partitions where the one is Firmware/ATF and another one Firmware/U-Boot. OS field is used for recording that difference that's why make sense to show values there for Firmware types. For example: Image 0 (atf) Description: ATF bl31.bin Created: Mon Mar 26 15:58:14 2018 Type: Firmware Compression: uncompressed Data Size: 51152 Bytes = 49.95 KiB = 0.05 MiB Architecture: ARM OS: ARM Trusted Firmware Load Address: 0xfffe0000 Hash algo: md5 Hash value: 36a4212bbb698126bf5a248f0f4b5336 Image 1 (uboot) Description: u-boot.bin Created: Mon Mar 26 15:58:14 2018 Type: Firmware Compression: uncompressed Data Size: 761216 Bytes = 743.38 KiB = 0.73 MiB Architecture: ARM OS: U-Boot Load Address: 0x08000000 Hash algo: md5 Hash value: f22960fe429be72296dc8dc59a47d566 Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jun Nie <jun.nie@linaro.org>
2018-04-06image: fit: Show firmware configuration property if presentMichal Simek
SPL ATF support requires to have firmware property which should be also listed by mkimage -l when images is created. The patch is also using this macro in spl_fit to match keyword. When image is created: Default Configuration: 'config' Configuration 0 (config) Description: ATF with full u-boot Kernel: unavailable Firmware: atf FDT: dtb Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jun Nie <jun.nie@linaro.org> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-19SPL: Add signature verification when loading imageJun Nie
U-boot proper signature is not verified by SPL on most platforms even config SPL_FIT_SIGNATURE is enabled. Only fsl-layerscape platform support secure boot in platform specific code. So verified boot cannot be achieved if u-boot proper is loaded by SPL. This patch add signature verification to u-boot proper images when loading FIT image in SPL. It is tested on Allwinner bananapi zero board with H2+ SoC. Signed-off-by: Jun Nie <jun.nie@linaro.org>
2018-01-15fix incorrect usage of DT node unit address in commentsAndre Przywara
The DT spec demands a unit-address in a node name to match the "reg" property in that node. Newer dtc versions will throw warnings if this is not the case. Fix all occurences in the tree where node names were mentioned in comments, to not give bad examples to the reader. Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2017-12-12SPL: Add FIT data-position property supportPeng Fan
For external data, FIT has a optional property "data-position" which can set the external data to a fixed offset to FIT beginning. Add the support for this property in SPL FIT. Signed-off-by: Ye Li <ye.li@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tomas Melin <tomas.melin@vaisala.com> Cc: Pantelis Antoniou <pantelis.antoniou@konsulko.com> Cc: "Andrew F. Davis" <afd@ti.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Cc: "tomas.melin@vaisala.com" <tomas.melin@vaisala.com> Cc: Kever Yang <kever.yang@rock-chips.com> Cc: Andre Przywara <andre.przywara@arm.com> Cc: York Sun <york.sun@nxp.com> Cc: Lokesh Vutla <lokeshvutla@ti.com> Cc: "Cooper Jr., Franklin" <fcooper@ti.com> Cc: George McCollister <george.mccollister@gmail.com> Cc: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi> Cc: Jean-Jacques Hiblot <jjhiblot@ti.com> Cc: Rick Altherr <raltherr@google.com> Cc: Tom Rini <trini@konsulko.com> Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com> Reviewed-by: York Sun <york.sun@nxp.com>
2017-09-15fit: Introduce methods for applying overlays on fit-loadPantelis Antoniou
Introduce an overlay based method for constructing a base DT blob to pass to the kernel. It is based on a specific method now to get the FDT from a FIT image named boot_get_fdt_fit(). Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com> Acked-by: Simon Glass <sjg@chromium.org>