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* fdt: Add a function to get the alias sequence of a nodeSimon Glass2014-07-23-0/+46
| | | | | | | | | | | | | | | | | | | | Aliases are used to provide U-Boot's numbering of devices, such as: aliases { spi0 = "/spi@12330000"; } spi@12330000 { ... } This tells us that the SPI controller at 12330000 is considered to be the first SPI controller (SPI 0). So we have a numbering for the SPI node. Add a function that returns the numbering for a node assume that it exists in the list of aliases. Signed-off-by: Simon Glass <sjg@chromium.org>
* Add a simple malloc() implementation for pre-relocationSimon Glass2014-07-23-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If we are to have driver model before relocation we need to support some way of calling memory allocation routines. The standard malloc() is pretty complicated: 1. It uses some BSS memory for its state, and BSS is not available before relocation 2. It supports algorithms for reducing memory fragmentation and improving performace of free(). Before relocation we could happily just not support free(). 3. It includes about 4KB of code (Thumb 2) and 1KB of data. However since this has been loaded anyway this is not really a problem. The simplest way to support pre-relocation malloc() is to reserve an area of memory and allocate it in increasing blocks as needed. This implementation does this. To enable it, you need to define the size of the malloc() pool as described in the README. It will be located above the pre-relocation stack on supported architectures. Note that this implementation is only useful on machines which have some memory available before dram_init() is called - this includes those that do no DRAM init (like tegra) and those that do it in SPL (quite a few boards). Enabling driver model preior to relocation for the rest of the boards is left for a later exercise. Signed-off-by: Simon Glass <sjg@chromium.org>
* Add option -r to env import to allow import of text files with CRLF as line ↵Alexander Holler2014-07-22-1/+16
| | | | | | | | | | | | | | endings When this option is enabled, CRLF is treated like LF when importing environments from text files, which means CRs ('\r') in front of LFs ('\n') are just ignored. Drawback of enabling this option is that (maybe exported) variables which have a trailing CR in their content will get imported without that CR. But this drawback is very unlikely and the big advantage of letting Windows user create a *working* uEnv.txt too is likely more welcome. Signed-off-by: Alexander Holler <holler@ahsoftware.de>
* lib/time.c cleanupsPavel Machek2014-07-22-8/+10
| | | | | | | | | | As I initially suspected overflow in time handling, I took a detailed look at lib/time.c. This adds comments about units being used, reduces amount of type casting being done, and makes __udelay() always wait at least one tick. (Current code could do no delaying at all for short delays). Signed-off-by: Pavel Machek <pavel@denx.de>
* lib:vsprintf: reduce scope of pack_hex_byteJeroen Hofstee2014-07-18-11/+11
| | | | | | | | pack_hex_byte is only used when CONFIG_CMD_NET is defined so limit it to that scope. This prevents a clang warning. Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
* lib:sha1: remove unused constantJeroen Hofstee2014-07-18-2/+0
| | | | | This prevents a clang warning. Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
* lib:lmb: use __weakJeroen Hofstee2014-07-18-4/+2
| | | | | | | This not only looks a bit better it also prevents a warning with W=1 (no previous prototype). Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
* lib: div64: add missing includeJeroen Hofstee2014-07-18-0/+1
| | | | | | | Include the function its prototype to prevent the warning that it has no prototype. Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
* lib, fdt: move fdtdec_get_int() out of lib/fdtdec.cHeiko Schocher2014-06-23-36/+40
| | | | | | | | | | | | | | | | | move fdtdec_get_int() out of lib/fdtdec.c into lib/fdtdec_common.c as this function is also used, if CONFIG_OF_CONTROL is not used. Poped up on the ids8313 board using signed FIT images, and activating CONFIG_SYS_GENERIC_BOARD. Without this patch it shows on boot: No valid FDT found - please append one to U-Boot binary, use u-boot-dtb.bin or define CONFIG_OF_EMBED. For sandbox, use -d <file.dtb> With this patch, it boots again with CONFIG_SYS_GENERIC_BOARD enabled. Signed-off-by: Heiko Schocher <hs@denx.de> Acked-by: Simon Glass <sjg@chromium.org> Cc: Tom Rini <trini@ti.com>
* includes: move openssl headers to include/u-bootJeroen Hofstee2014-06-19-9/+9
| | | | | | | | | | | | commit 18b06652cd "tools: include u-boot version of sha256.h" unconditionally forced the sha256.h from u-boot to be used for tools instead of the host version. This is fragile though as it will also include the host version. Therefore move it to include/u-boot to join u-boot/md5.h etc which were renamed for the same reason. cc: Simon Glass <sjg@chromium.org> Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
* mkimage: Automatically expand FDT in more casesSimon Glass2014-06-19-9/+18
| | | | | | | The original code did not cover every case and there was a missing negative sign in one case. Expand the coverage and fix the bug. Signed-off-by: Simon Glass <sjg@chromium.org>
* libfdt: Fix segfault when calling fit_check_format() on corrupt FIT imagesJon Nalley2014-06-19-1/+1
| | | | | | | | | | | It has been observed that fit_check_format() will fail when passed a corrupt FIT image. This was tracked down to _fdt_string_eq(): return (strlen(p) == len) && (memcmp(p, s, len) == 0); In the case of a corrupt FIT image one can't depend on 'p' being NULL terminated. I changed it to use strnlen() to fix the issue. Signed-off-by: Tom Rini <trini@ti.com>
* LzmaTools: don't self assign valuesJeroen Hofstee2014-06-11-2/+2
| | | | | | | | | | It seems the code tries to trick the compiler the argument is actually used. However compilers became too smart to fool them so easily an now warn. Gcc and clang don't seem to emit a warning when the argument is unused. If so it should be decorated with unused / (void). Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
* fdt: Update functions which write to an FDT to return -ENOSPCSimon Glass2014-06-11-9/+19
| | | | | | | | | | When writing values into an FDT it is possible that there will be insufficient space. If the caller gets a useful error then it can potentially deal with the situation. Adjust these functions to return -ENOSPC when the FDT is full. Signed-off-by: Simon Glass <sjg@chromium.org>
* Merge branch 'u-boot-samsung/master' into 'u-boot-arm/master'Albert ARIBAUD2014-06-02-6/+15
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| * initcall: Improve debugging supportSimon Glass2014-05-28-5/+12
| | | | | | | | | | | | | | | | | | Add the ability to display the code offset of an initcall even after it is relocated. This makes it much easier to relate initcalls back to the U-Boot System.map file. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
| * exynos: Enable the LCD backlight for snowSimon Glass2014-05-28-0/+1
| | | | | | | | | | | | | | | | | | The backlight uses FETs on the TPS65090. Enable this so that the display is visible. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
| * power: Add support for TPS65090 PMU chip.Tom Wai-Hong Tam2014-05-28-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds driver support for the TPS65090 PMU. Support includes hooking into the pmic infrastructure so that the pmic commands can be used on the console. The TPS65090 supports the following functionality: - fet enable/disable/querying - getting and setting of charge state Even though it is connected to the pmic infrastructure it does not hook into the pmic charging charging infrastructure. The device tree binding is from Linux, but only a small subset of functionality is supported. Signed-off-by: Tom Wai-Hong Tam <waihong@chromium.org> Signed-off-by: Hatim Ali <hatim.rv@samsung.com> Signed-off-by: Katie Roberts-Hoffman <katierh@chromium.org> Signed-off-by: Rong Chang <rongchang@chromium.org> Signed-off-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Vincent Palatin <vpalatin@chromium.org> Signed-off-by: Aaron Durbin <adurbin@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
| * ARM: dts: exynos: rename from EXYNOS5_DWMMC to EXYNOS_DWMMCJaehoon Chung2014-05-16-1/+1
| | | | | | | | | | | | | | | | Exynos serise can be supported the dw-mmc controller. So, it's good that used the general prefix as "_EXYNOS_DWMMC". Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
* | eMMC: add support for operations in RPMB partitionPierre Aubert2014-05-23-0/+1
| | | | | | | | | | | | | | | | | | This patch adds functions for read, write and authentication key programming for the Replay Protected Memory Block partition in the eMMC. Acked-by: Pantelis Antoniou <panto@antoniou-consulting.com> Signed-off-by: Pierre Aubert <p.aubert@staubli.com>
* | lib/sha256: fix compile on some hostsAndreas Bießmann2014-05-12-1/+3
|/ | | | | | | | | | | | | | Commit 2842c1c24269a05142802d25520e7cb9035e456c introduced lib/sha256 into mkimage. Since then it will be compiled with HOSTCC which may produce errors on some systems. Most BSD systems (like OS X for me) do not ship a linux/string.h which will lead to take the U-Boot provided include/linux/string.h in the end. This header howver is completely wrong here. Just take the string.h if compiling with HOSTCC and linux/string.h when not. Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com> Cc: Heiko Schocher <hs@denx.de> Acked-by: Heiko Schocher<hs@denx.de>
* aes: make apply_cbc_chain_data non-staticStephen Warren2014-04-18-12/+3
| | | | | | | | | | | | | | | | | | Tegra's crypto.c uses apply_cbc_chain_data() to sign the warm restart code. This function was recently moved into the core aes.c and made static, which prevents the Tegra code from compiling. Make it public again to avoid the compile errors: arch/arm/cpu/tegra20-common/crypto.c: In function ‘sign_object’: arch/arm/cpu/tegra20-common/crypto.c:74:3: warning: implicit declaration of function ‘apply_cbc_chain_data’ [-Wimplicit-function-declaration] arch/arm/cpu/built-in.o: In function `sign_object': .../arch/arm/cpu/tegra20-common/crypto.c:74: undefined reference to `apply_cbc_chain_data' .../arch/arm/cpu/tegra20-common/crypto.c:78: undefined reference to `apply_cbc_chain_data' Fixes: 6e7b9f4fa0ae ("aes: Move the AES-128-CBC encryption function to common code") Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Marek Vasut <marex@denx.de>
* Merge branch 'next'Tom Rini2014-04-17-77/+314
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| * env: Implement support for AES encryption into fw_* toolsMarek Vasut2014-03-21-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | Implement support for encrypting/decrypting the environment block into the tools/env/fw_* tools. The cipher used is AES 128 CBC and the implementation depends solely on components internal to U-Boot. To allow building against the internal AES library, the library did need minor adjustments to not include U-Boot's headers which are not wanted to be included and define missing types. Signed-off-by: Marek Vasut <marex@denx.de>
| * aes: Implement AES-128-CBC decryption functionMarek Vasut2014-03-21-0/+28
| | | | | | | | | | | | | | Implement a compatible AES-128-CBC decryption function as a counterpart of the encryption function pulled from tegra20-common/crypto.c . Signed-off-by: Marek Vasut <marex@denx.de>
| * aes: Move the AES-128-CBC encryption function to common codeMarek Vasut2014-03-21-0/+52
| | | | | | | | | | | | | | | | | | Move the AES-128-CBC encryption function implemented in tegra20-common/crypto.c into lib/aes.c . This is well re-usable common code. Moreover, clean the code up a bit and fix the kerneldoc-style annotations. Signed-off-by: Marek Vasut <marex@denx.de>
| * tools, fit_check_sign: verify a signed fit imageHeiko Schocher2014-03-21-8/+42
| | | | | | | | | | | | | | | | add host tool "fit_check_sign" which verifies, if a fit image is signed correct. Signed-off-by: Heiko Schocher <hs@denx.de> Cc: Simon Glass <sjg@chromium.org>
| * rsa: add sha256,rsa4096 algorithmHeiko Schocher2014-03-21-16/+69
| | | | | | | | | | | | | | | | Add support for sha256,rsa4096 signatures in u-boot. Signed-off-by: Heiko Schocher <hs@denx.de> Acked-by: Simon Glass <sjg@chromium.org> Cc: andreas@oetken.name
| * rsa: add sha256-rsa2048 algorithmHeiko Schocher2014-03-21-64/+129
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | based on patch from andreas@oetken.name: http://patchwork.ozlabs.org/patch/294318/ commit message: I currently need support for rsa-sha256 signatures in u-boot and found out that the code for signatures is not very generic. Thus adding of different hash-algorithms for rsa-signatures is not easy to do without copy-pasting the rsa-code. I attached a patch for how I think it could be better and included support for rsa-sha256. This is a fast first shot. aditionally work: - removed checkpatch warnings - removed compiler warnings - rebased against current head Signed-off-by: Heiko Schocher <hs@denx.de> Cc: andreas@oetken.name Cc: Simon Glass <sjg@chromium.org>
| * fit: add sha256 supportHeiko Schocher2014-03-21-2/+3
| | | | | | | | | | | | | | add sha256 support to fit images Signed-off-by: Heiko Schocher <hs@denx.de> Acked-by: Simon Glass <sjg@chromium.org>
* | Merge branch 'u-boot/master' into 'u-boot-arm/master'Albert ARIBAUD2014-04-08-5798/+3813
|\ \ | | | | | | | | | | | | | | | | | | | | | Conflicts: arch/arm/cpu/arm926ejs/mxs/Makefile include/configs/trats.h include/configs/trats2.h include/mmc.h
| * | cmd:gpt: randomly generate each partition uuid if undefinedPrzemyslaw Marczak2014-04-02-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes: - randomly generate partition uuid if any is undefined and CONFIG_RAND_UUID is defined - print debug info about set/unset/generated uuid - update doc/README.gpt Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Acked-by: Lukasz Majewski <l.majewski@samsung.com> Cc: Piotr Wilczek <p.wilczek@samsung.com> Cc: Tom Rini <trini@ti.com> Cc: Stephen Warren <swarren@nvidia.com> Cc: Lukasz Majewski <l.majewski@samsung.com>
| * | new commands: uuid and guid - generate random unique identifierPrzemyslaw Marczak2014-04-02-1/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Those commands basis on implementation of random UUID generator version 4 which is described in RFC4122. The same algorithm is used for generation both ids but string representation is different as below. char: 0 9 14 19 24 36 xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx UUID: be be be be be GUID: le le le be be Commands usage: - uuid [<varname>] - guid [<varname>] The result is saved in environment as a "varname" variable if argument is given, if not then it is printed. New config: - CONFIG_CMD_UUID Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Stephen Warren <swarren@nvidia.com> Cc: Lukasz Majewski <l.majewski@samsung.com> Cc: trini@ti.com
| * | lib: uuid: add functions to generate UUID version 4Przemyslaw Marczak2014-04-02-4/+65
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support to generate UUID (Universally Unique Identifier) in version 4 based on RFC4122, which is randomly. Source: https://www.ietf.org/rfc/rfc4122.txt Changes: - new configs: - CONFIG_LIB_UUID for compile lib/uuid.c - CONFIG_RANDOM_UUID for functions gen_rand_uuid() and gen_rand_uuid_str() - add configs dependency to include/config_fallbacks.h for lib uuid. lib/uuid.c: - add gen_rand_uuid() - this function writes 16 bytes len binary representation of UUID v4 to the memory at given address. - add gen_rand_uuid_str() - this function writes 37 bytes len hexadecimal ASCII string representation of UUID v4 to the memory at given address. Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Stephen Warren <swarren@nvidia.com> Cc: Lukasz Majewski <l.majewski@samsung.com> [trini: Add CONFIG_EFI_PARTITION to fallbacks] Signed-off-by: Tom Rini <trini@ti.com>
| * | lib: uuid: code refactor for proper maintain between uuid bin and stringPrzemyslaw Marczak2014-04-02-24/+59
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in lib/uuid.c to: - uuid_str_to_bin() - uuid_bin_to_str() New parameter is added to specify input/output string format in listed functions This change allows easy recognize which UUID type is or should be stored in given string array. Binary data of UUID and GUID is always stored in big endian, only string representations are different as follows. String byte: 0 36 String char: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx string UUID: be be be be be string GUID: le le le be be This patch also updates functions calls and declarations in a whole code. Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Stephen Warren <swarren@nvidia.com> Cc: Lukasz Majewski <l.majewski@samsung.com> Cc: trini@ti.com
| * | part_efi: move uuid<->string conversion functions into lib/uuid.cPrzemyslaw Marczak2014-04-02-7/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit introduces cleanup for uuid library. Changes: - move uuid<->string conversion functions into lib/uuid.c so they can be used by code outside part_efi.c. - rename uuid_string() to uuid_bin_to_str() for consistency with existing uuid_str_to_bin() - add an error return code to uuid_str_to_bin() - update existing code to the new library functions. Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Stephen Warren <swarren@nvidia.com> Cc: Lukasz Majewski <l.majewski@samsung.com> Cc: trini@ti.com
| * | lib: rand: introduce new configs: CONFIG_LIB_RAND and CONFIG_LIB_HW_RANDPrzemyslaw Marczak2014-03-28-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | New configs: - CONFIG_LIB_RAND - to enable implementation of rand library in lib/rand.c - CONFIG_LIB_HW_RAND - to enable hardware based implementations of lib rand Other changes: - add CONFIG_LIB_RAND to boards configs which needs rand() - put only one rand.o dependency in lib/Makefile CONFIG_LIB_HW_RAND should be defined for drivers which implements rand library (declared in include/common.h): - void srand(unsigned int seed) - unsigned int rand(void) - unsigned int rand_r(unsigned int *seedp) Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Michael Walle <michael@walle.cc> Cc: Tom Rini <trini@ti.com> Cc: Masahiro Yamada <yamada.m@jp.panasonic.com>
| * | Logo: TIZEN: Change booting logo size to official size.Jonghwa Lee2014-03-28-5774/+3605
| |/ | | | | | | | | | | | | | | | | | | | | | | Since TIZEN group has been used 450 X 140 bmp logo for lunchbox, this patch tries to change the logo size from 500 X 150 to official size. By reducing image size, we also save about 35KB. To make row aligned 4 bytes, add 2 pixels to row. Therefore the real width of image size is 452. Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com> Reviewed-by : Przemyslaw Marczak <p.marczak@samsung.com>
* | Merge branch 'u-boot/master' into 'u-boot-arm/master'Albert ARIBAUD2014-03-25-0/+26
|\ \ | |/ | | | | | | | | | | | | Trivial merge conflict, needed to manually remove local_info as per commit 41364f0f. Conflicts: board/samsung/common/board.c
| * sandbox: Add LCD driverSimon Glass2014-03-17-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Add a simple LCD driver which uses SDL to display the image. We update the image regularly, while still providing for reasonable performance. Adjust the common lcd code to support sandbox. For command-line runs we do not want the LCD to be displayed, so add a --show_lcd option to enable it. Tested-by: Che-Liang Chiou <clchiou@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
| * cros_ec: sandbox: Add Chrome OS EC emulationSimon Glass2014-03-17-0/+1
| | | | | | | | | | | | | | | | Add a simple emulation of the Chrome OS EC for sandbox, so that it can perform various EC tasks such as keyboard handling. Reviewed-by: Vadim Bendebury <vbendeb@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
| * cros_ec: Add a function for reading a flash map entrySimon Glass2014-03-17-0/+24
| | | | | | | | | | | | | | | | | | A flash map describes the layout of flash memory in terms of offsets and sizes for each region. Add a function to read a flash map entry from the device tree. Reviewed-by: Che-Liang Chiou <clchiou@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
* | drivers:mmc:sdhci: enable support for DTPiotr Wilczek2014-03-12-0/+1
| | | | | | | | | | | | | | | | | | This patch enables support for device tree for sdhci driver. Non DT case is still supported. Signed-off-by: Piotr Wilczek <p.wilczek@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
* | video:mipidsim:fdt: Add DT support for mipi dsim driverPiotr Wilczek2014-03-12-0/+1
|/ | | | | | | | | This patch enables parsing mipi data from device tree. Non device tree case is still supported. Signed-off-by: Piotr Wilczek <p.wilczek@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
* kbuild, blackfin: Add CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEEDMasahiro Yamada2014-03-07-0/+2
| | | | | | | | | | | | | | | | | | | | | | Many (but not all) of Blackfin boards give -O2 option to compile under lib/ directory. That means lib/ should be speed-optimized, whereas other parts should be size-optimized. We want to keep the same behavior, but do not want to parse board/*/config.mk again and again. We've got no choice but to invent a new method. CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED, if it is enabled, gives -O2 flag only for building under lib/ directory. Dirty codes which I had marked as "FIX ME" in board/${BOARD}/config.mk have been deleted. Instead, CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED has been defined in include/configs/${BOARD}.h. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Sonic Zhang <sonic.zhang@analog.com>
* Add 64-bit data support for memory commandsYork Sun2014-03-04-1/+16
| | | | | | | | | | Add 64-bit data for memory commands, such as md, mw, mm, cmp. The new size ".q " is introduced. For 64-bit architecture, 64-bit data is enabled by default, by detecting compiler __LP64__. It is optional for other architectures. Signed-off-by: York Sun <yorksun@freescale.com>
* arm: Switch to -mno-unaligned-access when supported by the compilerTom Rini2014-02-26-3/+0
| | | | | | | | | | | | | | | | | | When we tell the compiler to optimize for ARMv7 (and ARMv6 for that matter) it assumes a default of SCTRL.A being cleared and unaligned accesses being allowed and fast at the hardware level. We set this bit and must pass along -mno-unaligned-access so that the compiler will still breakdown accesses and not trigger a data abort. To better help understand the requirements of the project with respect to unaligned memory access, the Documentation/unaligned-memory-access.txt file has been added as doc/README.unaligned-memory-access.txt and is taken from the v3.14-rc1 tag of the kernel. Cc: Albert ARIBAUD <albert.u.boot@aribaud.net> Cc: Mans Rullgard <mans@mansr.com> Signed-off-by: Tom Rini <trini@ti.com>
* kbuild: use Linux Kernel build scriptsMasahiro Yamada2014-02-19-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | Now we are ready to switch over to real Kbuild. This commit disables temporary scripts: scripts/{Makefile.build.tmp, Makefile.host.tmp} and enables real Kbuild scripts: scripts/{Makefile.build,Makefile.host,Makefile.lib}. This switch is triggered by the line in scripts/Kbuild.include -build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build.tmp obj +build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj We need to adjust some build scripts for U-Boot. But smaller amount of modification is preferable. Additionally, we need to fix compiler flags which are locally added or removed. In Kbuild, it is not allowed to change CFLAGS locally. Instead, ccflags-y, asflags-y, cppflags-y, CFLAGS_$(basetarget).o, CFLAGS_REMOVE_$(basetarget).o are prepared for that purpose. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Tested-by: Gerhard Sittig <gsi@denx.de>
* kbuild: change out-of-tree buildMasahiro Yamada2014-02-19-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit changes the working directory where the build process occurs. Before this commit, build process occurred under the source tree for both in-tree and out-of-tree build. That's why we needed to add $(obj) prefix to all generated files in makefiles like follows: $(obj)u-boot.bin: $(obj)u-boot Here, $(obj) is empty for in-tree build, whereas it points to the output directory for out-of-tree build. And our old build system changes the current working directory with "make -C <sub-dir>" syntax when descending into the sub-directories. On the other hand, Kbuild uses a different idea to handle out-of-tree build and directory descending. The build process of Kbuild always occurs under the output tree. When "O=dir/to/store/output/files" is given, the build system changes the current working directory to that directory and restarts the make. Kbuild uses "make -f $(srctree)/scripts/Makefile.build obj=<sub-dir>" syntax for descending into sub-directories. (We can write it like "make $(obj)=<sub-dir>" with a shorthand.) This means the current working directory is always the top of the output directory. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Tested-by: Gerhard Sittig <gsi@denx.de>
* Merge branch 'u-boot-samsung/master' into 'u-boot-arm/master'Albert ARIBAUD2014-02-13-5079/+10766
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