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2017-03-17Kconfig: define MD5 dependency for FIT supportAndre Przywara
FIT images require MD5 support to verify image checksums. So far this was expressed by defining a CPP symbol in image.h. Since MD5 is now a first class Kconfig citizen, express that in Kconfig instead. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-01-20bootm: relocate ramdisk if CONFIG_SYS_BOOT_RAMDISK_HIGH setRick Altherr
In 35fc84f, bootm was refactored so plain 'bootm' and 'bootm <subcommand>' shared a common implementation. The 'bootm ramdisk' command implementation is now part of the common implementation but not invoke by plain 'bootm' since the original implementation never did ramdisk relocation. Instead, ramdisk relocation happened in image_setup_linux() which is typically called during the OS portion of 'bootm'. On ARM, parameters to the Linux kernel can either be passed by FDT or ATAGS. When using FDT, image_setup_linux() is called which also triggers ramdisk relocation. When using ATAGS, image_setup_linux() is _not_ called because it mostly does FDT setup. Instead of calling image_setup_linux() in both FDT and ATAGS cases, include BOOTM_STATE_RAMDISK in the requested states during a plain 'bootm' if CONFIG_SYS_BOOT_RAMDISK_HIGH is set and remove the ramdisk relocation from image_setup_linux(). This causes ramdisk relocation to happen on any system where CONFIG_SYS_BOOT_RAMDISK_HIGH regardless of the OS being booted. Also remove IMAGE_ENABLE_RAMDISK_HIGH as it was only used by the now-removed code from image_setup_linux(). Signed-off-by: Rick Altherr <raltherr@google.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joel Stanley <joel@jms.id.au>
2017-01-16Merge branch 'master' of git://git.denx.de/u-boot-videoTom Rini
2017-01-14mkimage: Add support for signing with pkcs11George McCollister
Add support for signing with the pkcs11 engine. This allows FIT images to be signed with keys securely stored on a smartcard, hardware security module, etc without exposing the keys. Support for other engines can be added in the future by modifying rsa_engine_get_pub_key() and rsa_engine_get_priv_key() to construct correct key_id strings. Signed-off-by: George McCollister <george.mccollister@gmail.com>
2017-01-13splash: add support for loading splash from a FIT imagetomas.melin@vaisala.com
Enable support for loading a splash image from within a FIT image. The image is assumed to be generated with mkimage -E flag to hold the data external to the FIT. Signed-off-by: Tomas Melin <tomas.melin@vaisala.com> Acked-by: Igor Grinberg <grinberg@compulab.co.il>
2017-01-02tools: mkimage: add firmware-ivt image type for HAB verificationSven Ebenfeld
When we want to use Secure Boot with HAB from SPL over U-Boot.img, we need to append the IVT to the image and leave space for the CSF. Images generated as firmware_ivt can directly be signed using the Freescale code signing tool. For creation of a CSF, mkimage outputs the correct HAB Blocks for the image. The changes to the usual firmware image class are quite small, that is why I implemented that directly into the default_image. Cc: sbabic@denx.de v2-Changes: None Signed-off-by: Sven Ebenfeld <sven.ebenfeld@gmail.com> Reviewed-by: George McCollister <george.mccollister@gmail.com> Tested-by: George McCollister <george.mccollister@gmail.com>
2016-12-03image: Add Trusted Execution Environment image typeAndrew F. Davis
Add a new image type representing Trusted Execution Environment (TEE) image types. For example, an OP-TEE OS binary image. Signed-off-by: Andrew F. Davis <afd@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-12-03image: Add FIT image loadable section custom processingAndrew F. Davis
To help automate the loading of custom image types we add the ability to define custom handlers for the loadable section types. When we find a compatible type while loading a "loadable" image from a FIT image we run its associated handlers to perform any additional steps needed for loading this image. Signed-off-by: Andrew F. Davis <afd@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-11-21image: Combine image_sig_algo with image_sign_infoAndrew Duda
Remove the need to explicitly add SHA/RSA pairings. Invalid SHA/RSA pairings will still fail on verify operations when the hash length is longer than the key length. Follow the same naming scheme "checksum,crytpo" without explicitly defining the string. Indirectly adds support for "sha1,rsa4096" signing/verification. Signed-off-by: Andrew Duda <aduda@meraki.com> Signed-off-by: aduda <aduda@meraki.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-11-21image: Add crypto_algo struct for RSA infoAndrew Duda
Cut down on the repetition of algorithm information by defining separate checksum and crypto structs. image_sig_algos are now simply pairs of unique checksum and crypto algos. Signed-off-by: Andrew Duda <aduda@meraki.com> Signed-off-by: aduda <aduda@meraki.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-11-21rsa: Verify RSA padding programaticallyAndrew Duda
Padding verification was done against static SHA/RSA pair arrays which take up a lot of static memory, are mostly 0xff, and cannot be reused for additional SHA/RSA pairings. The padding can be easily computed according to PKCS#1v2.1 as: EM = 0x00 || 0x01 || PS || 0x00 || T where PS is (emLen - tLen - 3) octets of 0xff and T is DER encoding of the hash. Store DER prefix in checksum_algo and create rsa_verify_padding function to handle verification of a message for any SHA/RSA pairing. Signed-off-by: Andrew Duda <aduda@meraki.com> Signed-off-by: aduda <aduda@meraki.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-11-21rsa: cosmetic: rename pad_len to key_lenAndrew Duda
checksum_algo's pad_len field isn't actually used to store the length of the padding but the total length of the RSA key (msg_len + pad_len) Signed-off-by: Andrew Duda <aduda@meraki.com> Signed-off-by: aduda <aduda@meraki.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-10-06tools: mkimage: add support for Vybrid image formatAlbert ARIBAUD \(3ADEV\)
This format can be flashed directly at address 0 of the NAND FLASH, as it contains all necessary headers. Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>
2016-08-15xtensa: add support for the xtensa processor architecture [1/2]Chris Zankel
The Xtensa processor architecture is a configurable, extensible, and synthesizable 32-bit RISC processor core provided by Cadence. This is the first part of the basic architecture port with changes to common files. The 'arch/xtensa' directory, and boards and additional drivers will be in separate commits. Signed-off-by: Chris Zankel <chris@zankel.net> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2016-07-21image: fix IH_ARCH_... values for uImage compatibilityMasahiro Yamada
Commit 555f45d8f916 ("image: Convert the IH_... values to enums") accidentally changed some IH_ARCH_... values. Prior to that commit, there existed a gap between IH_ARCH_M68K and IH_ARCH_MICROBLAZE, like follows. #define IH_ARCH_SPARC64 11 /* Sparc 64 Bit */ #define IH_ARCH_M68K 12 /* M68K */ #define IH_ARCH_MICROBLAZE 14 /* MicroBlaze */ #define IH_ARCH_NIOS2 15 /* Nios-II */ The enum conversion broke the compatibility with existing uImage files. Reverting 555f45d8f916 will cause build error unfortunately, so here is a more easy fix. I dug the git history and figured out the gap was introduced by commit 1117cbf2adac ("nios: remove nios-32 arch"). So, I revived IH_ARCH_NIOS just for filling the gap. I added comments to each enum block. Once we assign a value to IH_... it is not allowed to change it. Acked-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-07-14image: Add functions to obtain category informationSimon Glass
Add generic functions which can look up information about a category: - the number of items in the category - the category description - an item long time - an item short time Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2016-07-14image: Create a table of information for each categorySimon Glass
Add a table that contains the category name, the number of items in each category and a pointer to the table of items. This will allow us to use generic code to deal with the categories. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2016-07-14image: Convert the IH_... values to enumsSimon Glass
We need to know the number of values of each category (architecture, compression, OS and image type). To make this value easier to maintain, convert all values to enums. The count is then automatic. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2016-07-14spl: fit: add support for post-processing of imagesDaniel Allred
The next stage boot loader image and the selected FDT can be post- processed by board/platform/device-specific code, which can include modifying the size and altering the starting source address before copying these binary blobs to their final destination. This might be desired to do things like strip headers or footers attached to the images before they were packaged into the FIT, or to perform operations such as decryption or authentication. Introduce new configuration option CONFIG_SPL_FIT_IMAGE_POST_PROCESS to allow controlling this feature. If enabled, a platform-specific post-process function must be provided. Signed-off-by: Daniel Allred <d-allred@ti.com> Signed-off-by: Andreas Dannenberg <dannenberg@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-06-24common: image: minimal android image iminfo supportMichael Trimarchi
We already support iminfo for other images. The idea of this patch is start to have a minimal support for android image format. We still need to print id[] array Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-31Revert "image.h: Tighten up content using handy CONFIG_IS_ENABLED() macro."Masahiro Yamada
This reverts commit 56adbb38727320375b2f695bd04600d766d8a1b3. Since commit 56adbb387273 ("image.h: Tighten up content using handy CONFIG_IS_ENABLED() macro."), I found my boards fail to boot Linux because the commit changed the logic of macros it touched. Now, IMAGE_ENABLE_RAMDISK_HIGH and IMAGE_BOOT_GET_CMDLINE are 0 for all the boards. As you can see in include/linux/kconfig.h, CONFIG_IS_ENABLE() (and IS_ENABLED() as well) can only take a macro that is either defined as 1 or undefined. This is met for boolean options defined in Kconfig. On the other hand, CONFIG_SYS_BOOT_RAMDISK_HIGH and CONFIG_SYS_BOOT_GET_CMDLINE are defined without any value in arch/*/include/asm/config.h . This kind of clean-up is welcome, but the options should be moved to Kconfig beforehand. Moreover, CONFIG_IS_ENABLED(SPL_CRC32_SUPPORT) looks weird. It should be either CONFIG_IS_ENABLED(CRC32_SUPPORT) or IS_ENABLED(CONFIG_SPL_CRC32_SUPPORT). But, I see no define for CONFIG_SPL_CRC32_SUPPORT anywhere. Likewise for the other three. The logic of IMAGE_OF_BOARD_SETUP and IMAGE_OF_SYSTEM_SETUP were also changed for SPL. This can be a problem for boards defining CONFIG_SPL_OF_LIBFDT. I guess it should have been changed to IS_ENABLED(CONFIG_OF_BOARD_SETUP). In the first place, if we replace the references in C code, the macros IMAGE_* will go away. if (IS_ENABLED(CONFIG_OF_BOARD_SETUP) { ... } Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-05-27image.h: Tighten up content using handy CONFIG_IS_ENABLED() macro.Robert P. J. Day
In order for CONFIG_IS_ENABLED(FOO) to work we need to move the changes that CONFIG_FIT_DISABLE_SHA256 makes to be prior to the evaluation by CONFIG_IS_ENABLED(foo) Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> [trini: Move CONFIG_FIT_DISABLE_SHA256 parts to fix build breakage] Signed-off-by: Tom Rini <trini@konsulko.com>
2016-05-24image: Add boot_get_fpga() to load fpga with bootmMichal Simek
Add function boot_get_fpga() which find and load bitstream to programmable logic if fpga entry is present. Function is supported on Xilinx devices for full and partial bitstreams in BIN and BIT format. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Remove additional blankline in image.h
2016-05-24mkimage: Report information about fpgaMichal Simek
Add FIT_FPGA_PROP that user can identify an optional entry for fpga. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-24tools: zynqmpimage: Add Xilinx ZynqMP boot header generationMichal Simek
Add support for the zynqmpimage to mkimage. Only basic functionality is supported without encryption and register initialization with one partition which is filled by U-Boot SPL. For more detail information look at Xilinx ZynqMP TRM. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-03-14spl: Add an option to load a FIT containing U-BootSimon Glass
This provides a way to load a FIT containing U-Boot and a selection of device tree files. The board can select the correct device tree by probing the hardware. Then U-Boot is started with the selected device tree. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-03-14spl: Add a way for boards to select which device tree to loadSimon Glass
SPL calls this function with each device tree it can find in the FIT. The board should implement this function, using whatever hardware detection it can muster to determine the correct device tree. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-03-14image: Add functions to obtain short namesSimon Glass
Sometimes it is useful to obtain the short name for an Operating System, architecture or compression mechanism. Provide functions for this. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-03-14fdt: Allow libfdt to be used in SPLSimon Glass
Add an option to enable libfdt in SPL. This can be useful when decoding FIT files in SPL. We need to make sure this option is not enabled in SPL by this change. Also this option needs to be enabled in host builds. Si add a new IMAGE_USE_LIBFDT #define which can be used in files that are built on the host but must also build for U-Boot and SPL. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-03-14Kconfig: Move CONFIG_FIT and related options to KconfigSimon Glass
There are already two FIT options in Kconfig but the CONFIG options are still in the header files. We need to do a proper move to fix this. Move these options to Kconfig and tidy up board configuration: CONFIG_FIT CONFIG_OF_BOARD_SETUP CONFIG_OF_SYSTEM_SETUP CONFIG_FIT_SIGNATURE CONFIG_FIT_BEST_MATCH CONFIG_FIT_VERBOSE CONFIG_OF_STDOUT_VIA_ALIAS CONFIG_RSA Unfortunately the first one is a little complicated. We need to make sure this option is not enabled in SPL by this change. Also this option is enabled automatically in the host builds by defining CONFIG_FIT in the image.h file. To solve this, add a new IMAGE_USE_FIT #define which can be used in files that are built on the host but must also build for U-Boot and SPL. Note: Masahiro's moveconfig.py script is amazing. Signed-off-by: Simon Glass <sjg@chromium.org> [trini: Add microblaze change, various configs/ re-applies] Signed-off-by: Tom Rini <trini@konsulko.com>
2016-03-14Move CONFIG_OF_LIBFDT to KconfigSimon Glass
Move this option to Kconfig and tidy up existing boards. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-02-26image: Correct the OS location code to work on sandboxSimon Glass
A recent change broke the 'bootm' command on sandbox. The root cause is using a pointer as an address. Conversion from pointer to address needs to use map_to_sysmem() so that sandbox can do the right thing. The problem was pre-existing but uncovered by a recent commit. Fix this. Also move fit_get_end() to the C file to avoid needing to include mapmem.h (and thus asm/io.h) everywhere. Fixes: 1fec3c5d (common/image.c: Make boot_get_ramdisk() perform a check for Android images) Signed-off-by: Simon Glass <sjg@chromium.org>
2015-11-19tools: zynqimage: Add Xilinx Zynq boot header generation to mkimageNathan Rossi
As with other platforms vendors love to create their own boot header formats. Xilinx is no different and for the Zynq platform/SoC there exists the "boot.bin" which is read by the platforms bootrom. This format is described to a useful extent within the Xilinx Zynq TRM. This implementation adds support for the 'zynqimage' to mkimage. The implementation only considers the most common boot header which is un-encrypted and packed directly after the boot header itself (no XIP, etc.). However this implementation does take into consideration the other fields of the header for image dumping use cases (vector table and register initialization). Signed-off-by: Nathan Rossi <nathan@nathanrossi.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Tom Rini <trini@konsulko.com> Reviewed-by: Tom Rini <trini@konsulko.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-10-11Add support for LZ4 decompression algorithmJulius Werner
This patch adds support for LZ4-compressed FIT image contents. This algorithm has a slightly worse compression ration than LZO while being nearly twice as fast to decompress. When loading images from a fast storage medium this usually results in a boot time win. Sandbox-tested only since I don't have a U-Boot development system set up right now. The code was imported unchanged from coreboot where it's proven to work, though. I'm mostly interested in getting this recognized by mkImage for use in a downstream project. Signed-off-by: Julius Werner <jwerner@chromium.org> Acked-by: Simon Glass <sjg@chromium.org>
2015-09-02rockchip: Add support for the SPI imageSimon Glass
The Rockchip boot ROM requires a particular file format for booting from SPI. It consists of a 512-byte header encoded with RC4, some padding and then up to 32KB of executable code in 2KB blocks, separated by 2KB empty blocks. Add support to mkimage so that an SPL image (u-boot-spl-dtb.bin) can be converted to this format. This allows booting from SPI flash on supported machines. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-09-02rockchip: Add support for the SD imageSimon Glass
The Rockchip boot ROM requires a particular file format. It consists of 64KB of zeroes, a 512-byte header encoded with RC4, and then some executable code. Add support to mkimage so that an SPL image (u-boot-spl-dtb.bin) can be converted to this format. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-09-02rockchip: Add the rkimage format to mkimageSimon Glass
Rockchip SoCs require certain formats for code that they execute, The simplest format is a 4-byte header at the start of a binary file. Add support for this so that we can create images that the boot ROM understands. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-07-21mkimage: Display a better list of available image typesSimon Glass
Offer to display the available image types in help. Also, rather than hacking the genimg_get_type_id() function to display a list of types, do this in the tool. Also, sort the list. The list of image types is quite long, and hard to discover. Print it out when we show help information. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-05-28add boot_get_loadables() to load listed imagesKarl Apsite
Added a trimmed down instance of boot_get_<thing>() to satisfy the minimum requierments of the added feature. The function follows the normal patterns set by other boot_get<thing>'s, which should make it a bit easier to combine them all together into one boot_get_image() function in a later refactor. Documentation for the new function can be found in source: include/image.h Signed-off-by: Karl Apsite <Karl.Apsite@dornerworks.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2015-05-28mkimage will now report information about loadableKarl Apsite
Added FIT_LOADABLE_PROP, so the user can identify an optional entry named "loadables" in their .its configuration. "loadables" is a comma separated list in the .its Documentation can be found in doc/uImage.FIT/source_file_format.txt and doc/uImage.Fit/multi-with-loadables.its Signed-off-by: Karl Apsite <Karl.Apsite@dornerworks.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2015-05-08Fix musl buildJörg Krause
This patch fixes cross-compiling U-Boot tools with the musl C library: * including <sys/types.h> is needed for ulong * defining _GNU_SOURCE is needed for loff_t Tested for target at91sam9261ek_dataflash_cs3. Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks> Cc: Tom Rini <trini@konsulko.com>
2015-04-10lpc32xx: add lpc32xx-spl.bin boot image targetAlbert ARIBAUD \(3ADEV\)
Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>
2015-01-30Merge branch 'master' of git://git.denx.de/u-boot-dmTom Rini
2015-01-29rsa: Use checksum algorithms from struct hash_algoRuchika Gupta
Currently the hash functions used in RSA are called directly from the sha1 and sha256 libraries. Change the RSA checksum library to use the progressive hash API's registered with struct hash_algo. This will allow the checksum library to use the hardware accelerated progressive hash API's once available. Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com> CC: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> (Fixed build error in am335x_boneblack_vboot due to duplicate CONFIG_DM) Change-Id: Ic44279432f88d4e8594c6e94feb1cfcae2443a54
2015-01-29dumpimage: fit: extract FIT imagesGuilherme Maciel Ferreira
The dumpimage is able to extract components contained in a FIT image: $ ./dumpimage -T flat_dt -i CONTAINER.ITB -p INDEX FILE The CONTAINER.ITB is a regular FIT container file. The INDEX is the poisition of the sub-image to be retrieved, and FILE is the file (path+name) to save the extracted sub-image. For example, given the following kernel.its to build a kernel.itb: /dts-v1/; / { ... images { kernel@1 { description = "Kernel 2.6.32-34"; data = /incbin/("/boot/vmlinuz-2.6.32-34-generic"); type = "kernel"; arch = "ppc"; os = "linux"; compression = "gzip"; load = <00000000>; entry = <00000000>; hash@1 { algo = "md5"; }; }; ... }; ... }; The dumpimage can extract the 'kernel@1' node through the following command: $ ./dumpimage -T flat_dt -i kernel.itb -p 0 kernel Extracted: Image 0 (kernel@1) Description: Kernel 2.6.32-34 Created: Wed Oct 22 15:50:26 2014 Type: Kernel Image Compression: gzip compressed Data Size: 4040128 Bytes = 3945.44 kB = 3.85 MB Architecture: PowerPC OS: Linux Load Address: 0x00000000 Entry Point: 0x00000000 Hash algo: md5 Hash value: 22352ad39bdc03e2e50f9cc28c1c3652 Which results in the file 'kernel' being exactly the same as '/boot/vmlinuz-2.6.32-34-generic'. Signed-off-by: Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>
2015-01-14image: bootm: Add OpenRTOS image typeMarek Vasut
Add separate image type for the Wittenstein OpenRTOS . Signed-off-by: Marek Vasut <marex@denx.de> Cc: Simon Glass <sjg@chromium.org> Cc: Tom Rini <trini@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2014-11-21fdt: Add ft_system_setup() function for system device tree additionsSimon Glass
Add an additional function for adding information to the device tree before booting. This permits additions which are not board-specific. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de> Reviewed-by: Tom Rini <trini@ti.com>
2014-10-28x86: image: Add new image type for x64_64Simon Glass
This is a bit odd in that we are permitted to boot images for either, even though they are separate architectures. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-10-22x86: Support loading kernel setup from a FITSimon Glass
Add a new setup@ section to the FIT which can be used to provide a setup binary for booting Linux on x86. This makes it possible to boot x86 from a FIT. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-10-06tools: socfpga: Add socfpga preloader signing to mkimageCharles Manning
Like many platforms, the Altera socfpga platform requires that the preloader be "signed" in a certain way or the built-in boot ROM will not boot the code. This change automatically creates an appropriately signed preloader from an SPL image. The signed image includes a CRC which must, of course, be generated with a CRC generator that the SoCFPGA boot ROM agrees with otherwise the boot ROM will reject the image. Unfortunately the CRC used in this boot ROM is not the same as the Adler CRC in lib/crc32.c. Indeed the Adler code is not technically a CRC but is more correctly described as a checksum. Thus, the appropriate CRC generator is added to lib/ as crc32_alt.c. Signed-off-by: Charles Manning <cdhmanning@gmail.com> Signed-off-by: Marek Vasut <marex@denx.de> Cc: Chin Liang See <clsee@altera.com> Cc: Dinh Nguyen <dinguyen@altera.com> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Cc: Tom Rini <trini@ti.com> Cc: Wolfgang Denk <wd@denx.de> Cc: Pavel Machek <pavel@denx.de> Acked-by: Pavel Machek <pavel@denx.de> V2: - Zap unused constant - Explicitly print an error message in case of error - Rework the hdr_checksum() function to take the *header directly instead of a plan buffer pointer