Eric Lee / smarc-uboot

27 Sep, 2016

1 commit

16 Aug, 2016

1 commit

  • de5e5cea0   xtensa: add support for the xtensa processor architecture [1/2] ... Browse Code »

    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
    Signed-off-by: Max Filippov
    Reviewed-by: Simon Glass
    Reviewed-by: Tom Rini

    Chris Zankel
     

21 May, 2016

2 commits

08 Feb, 2016

1 commit

06 Feb, 2016

1 commit

  • a187559e3   Use correct spelling of "U-Boot" ... Browse Code »

    Correct spelling of "U-Boot" shall be used in all written text
    (documentation, comments in source files etc.).

    Signed-off-by: Bin Meng
    Reviewed-by: Heiko Schocher
    Reviewed-by: Simon Glass
    Reviewed-by: Minkyu Kang

    Bin Meng
     

23 Nov, 2015

1 commit

  • 7d9cde103   lib/tiny-printf.c: Add tiny printf function for space limited environments ... Browse Code »

    This patch adds a small printf() version that supports all basic formats.
    Its intented to be used in U-Boot SPL versions on platforms with very
    limited internal RAM sizes.

    To enable it, just define CONFIG_USE_TINY_PRINTF in your defconfig. This
    will result in the SPL using this tiny function and the main U-Boot
    still using the full-blown printf() function.

    This code was copied from:
    http://www.sparetimelabs.com/printfrevisited
    With mostly only coding style related changes so that its checkpatch
    clean.

    The size reduction is about 2.5KiB. Here a comparison for the db-mv784mp-gp
    (Marvell AXP) SPL:

    Without this patch:
    58963 18536 1928 79427 13643 ./spl/u-boot-spl

    With this patch:
    56542 18536 1956 77034 12cea ./spl/u-boot-spl

    Note:
    To make it possible to compile tiny-printf.c instead of vsprintf.c when
    CONFIG_USE_TINY_PRINTF is defined, the functions printf() and vprintf() are
    moved from common/console.c into vsprintf.c in this patch.

    Signed-off-by: Stefan Roese
    Cc: Simon Glass
    Cc: Hans de Goede
    Cc: Tom Rini
    Cc: Albert Aribaud

    Stefan Roese
     

20 Nov, 2015

1 commit

11 Nov, 2015

1 commit

10 Nov, 2015

2 commits

  • da58dec86   Various Makefiles: Add SPDX-License-Identifier tags ... Browse Code »
    40

    After consulting with some of the SPDX team, the conclusion is that
    Makefiles are worth adding SPDX-License-Identifier tags too, and most of
    ours have one. This adds tags to ones that lack them and converts a few
    that had full (or in one case, very partial) license blobs into the
    equivalent tag.

    Cc: Kate Stewart
    Signed-off-by: Tom Rini

    Tom Rini
     
  • 62e92077a   arm: support Thumb-1 with CONFIG_SYS_THUMB_BUILD ... Browse Code »

    When building a Thumb-1-only target with CONFIG_SYS_THUMB_BUILD,
    some files fail to build, most of the time because they include
    mcr instructions, which only exist for Thumb-2.

    This patch introduces a Kconfig option CONFIG_THUMB2 and uses
    it to select between Thumb-2 and ARM mode for the aforementioned
    files.

    Signed-off-by: Albert ARIBAUD

    Albert ARIBAUD
     

20 May, 2015

1 commit

30 Jan, 2015

1 commit

  • 49cad5478   Export redesign ... Browse Code »

    this is an atempt to make the export of functions typesafe.
    I replaced the jumptable void ** by a struct (jt_funcs) with function pointers.
    The EXPORT_FUNC macro now has 3 fixed parameters and one
    variadic parameter
    The first is the name of the exported function,
    the rest of the parameters are used to format a functionpointer
    in the jumptable,

    the EXPORT_FUNC macros are expanded three times,
    1. to declare the members of the struct
    2. to initialize the structmember pointers
    3. to call the functions in stubs.c

    Signed-off-by: Martin Dorwig
    Acked-by: Simon Glass

    Signed-off-by: Simon Glass
    (resending to the list since my tweaks are not quite trivial)

    Martin Dorwig
     

06 Jan, 2015

1 commit

17 Sep, 2014

2 commits

24 May, 2014

1 commit

  • e75e73dd5   examples: select libgcc for non-default architecture ... Browse Code »

    In case of multilib-enabled toolchains if default architecture differ from
    the one examples are being built for linker will fail to link example object
    files with libgcc of another (non-compatible) architecture.

    Interesting enough for years in main Makefile we used CFLAGS/c_flags for this
    but not for examples.

    So fixing it now.

    Signed-off-by: Alexey Brodkin

    Cc: Masahiro Yamada
    Cc: Tom Rini
    Cc: Wolfgang Denx
    Acked-by: WOlfgang Denk
    Acked-by: Masahiro Yamada

    Alexey Brodkin
     

18 Apr, 2014

1 commit

07 Mar, 2014

2 commits

  • 58dac3276   powerpc: mpc8260: consolidate CONFIG_MPC8260 and CONFIG_8260 ... Browse Code »

    Before this commit, CONFIG_MPC8260 and CONFIG_8260
    were used mixed-up.

    All boards with mpc8260 cpu defined both of them:
    - CONFIG_MPC8260 was defined in board config headers
    and include/common.h
    - CONFIG_8260 was defined arch/powerpc/cpu/mpc8260/config.mk

    We do not need to have both of them.
    This commit keeps only CONFIG_MPC8260.

    This commit does:
    - Delete CONFIG_8260 and CONFIG_MPC8260 definition
    in config headers and include/common.h
    - Rename CONFIG_8260 to CONFIG_MPC8260
    in arch/powerpc/cpu/mpc8260/config.mk.
    - Rename #ifdef CONFIG_8260 to #ifdef CONFIG_MPC8260

    Signed-off-by: Masahiro Yamada
    Cc: Wolfgang Denk

    Masahiro Yamada
     
  • 026f9cf24   kbuild: improve Kbuild speed ... Browse Code »

    Kbuild brought about many advantages for us but a significant
    performance regression was reported by Simon Glass.

    After some discussions and analysis, it turned out
    its main cause is in $(call cc-option,...).

    Historically, U-Boot parses all config.mk
    (arch/*/config.mk and board/*/config.mk)
    every time descending into subdirectories.
    That means cc-options are evaluated over and over again.

    $(call cc-option,...) is useful but costly.
    So we want to evaluate them only in ./Makefile
    and spl/Makefile and export compiler flags.

    This commit changes the build system as follows:

    - Modify scripts/Makefile.build to not include config.mk
    Instead, add $(PLATFORM_CPPFLAGS) to asflags-y, ccflags-y,
    cppflags-y.

    - Export many variables
    Going forward, Kbuild will not parse config.mk files
    when it descends into subdirectories.
    If we want to set variables in config.mk and use them
    in subdirectories, they must be exported.

    This is the list of variables to get exported:
    PLATFORM_CPPFLAGS
    CPUDIR
    BOARDDIR
    OBJCOPYFLAGS
    LDFLAGS
    LDFLAGS_FINAL
    (used in nand_spl/board/*/*/Makefile)
    CONFIG_STANDALONE_LOAD_ADDR
    (used in examples/standalone/Makefile)
    SYM_PREFIX
    (used in examples/standalone/Makefile)
    RELFLAGS
    (used in examples/standalone/Makefile)

    - Delete CPPFLAGS
    This variable has been replaced with PLATFORM_CPPFLAGS

    - Copy gcclibdir from example/standalone/Makefile
    to arch/sparc/config.mk
    The reference in CONFIG_STANDALONE_LOAD_ADDR must be
    resolved before it is exported.

    Signed-off-by: Masahiro Yamada
    Reported-by: Simon Glass
    Acked-by: Simon Glass
    Tested-by: Simon Glass [on Sandbox]
    Tested-by: Stephen Warren [on Tegra]

    Masahiro Yamada
     

26 Feb, 2014

2 commits

20 Feb, 2014

6 commits

  • cbce795e5   examples: move api/ and standalone/ entry to examples/Makefile ... Browse Code »

    Signed-off-by: Masahiro Yamada

    Masahiro Yamada
     
  • 6825a95b0   kbuild: use Linux Kernel build scripts ... Browse Code »

    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
    Tested-by: Gerhard Sittig

    Masahiro Yamada
     
  • 9e4140329   kbuild: change out-of-tree build ... Browse Code »
    43

    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 " 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="
    syntax for descending into sub-directories.
    (We can write it like "make $(obj)=" with a shorthand.)
    This means the current working directory is always the top
    of the output directory.

    Signed-off-by: Masahiro Yamada
    Tested-by: Gerhard Sittig

    Masahiro Yamada
     
  • d95800258   Makefile: move some flags to examples makefiles ... Browse Code »

    This commit moves some flags which are used
    under examples/ directory only.

    Signed-off-by: Masahiro Yamada

    Masahiro Yamada
     
  • 5651ccffa   Makfile: move suffix rules to Makefile.build ... Browse Code »

    This commit moves suffix rules from config.mk
    to scripts/Makefile.build, which will allow us
    to switch smoothly to real Kbuild.

    Note1:
    post/lib_powerpc/fpu/Makefile has
    its own rule to compile C sources.
    We need to tweak it to keep the same behavior.

    Note2:
    There are two file2 with the same name:
    arch/arm/lib/crt0.S and eamples/api/crt0.S.
    To keep the same build behavior,
    examples/api/Makefile also has to be treaked.

    Signed-off-by: Masahiro Yamada

    Masahiro Yamada
     
  • 4a20df395   examples: Use scripts/Makefile.build ... Browse Code »

    Signed-off-by: Masahiro Yamada

    Masahiro Yamada
     

07 Feb, 2014

1 commit

10 Jan, 2014

1 commit

09 Jan, 2014

1 commit

16 Dec, 2013

3 commits

12 Dec, 2013

1 commit

  • a5a42eec8   ARM: fix the standalone programs ... Browse Code »

    The standalone programs do not use the api calls, but rely
    directly on u-boot variable gd->jt for the jump table. Commit
    fe1378a - "ARM: use r9 for gd" changed the register holding
    the address of gd, but the assembly code in the standalone
    examples was not updated accordingly. This broke the programs
    on ARM relying on the jumptable in the v2013.10 release.
    This patch unbricks them by using the correct register.

    Cc: Michal Simek
    Cc: Albert ARIBAUD
    Signed-off-by: Jeroen Hofstee

    Jeroen Hofstee
     

25 Nov, 2013

2 commits

16 Nov, 2013

1 commit

08 Nov, 2013

1 commit

05 Nov, 2013

1 commit