1. 16 Sep, 2016 1 commit
  2. 15 Aug, 2016 3 commits
  3. 21 Jul, 2016 1 commit
    • Stephen Warren's avatar
      ARM: tegra: add IVC protocol implementation · 49626ea8
      Stephen Warren authored
      IVC (Inter-VM Communication) protocol is a Tegra-specific IPC (Inter
      Processor Communication) framework. Within the context of U-Boot, it is
      typically used for communication between the main CPU and various
      auxiliary processors. In particular, it will be used to communicate with
      the BPMP (Boot and Power Management Processor) on Tegra186 in order to
      manipulate clocks and reset signals.
      Signed-off-by: default avatarStephen Warren <swarren@nvidia.com>
      Signed-off-by: default avatarTom Warren <twarren@nvidia.com>
      49626ea8
  4. 19 Jun, 2016 1 commit
  5. 31 May, 2016 2 commits
    • Stephen Warren's avatar
      ARM: tegra: add core Tegra186 support · c7ba99c8
      Stephen Warren authored
      This adds the bare minimum code to support Tegra186, with UART and eMMC
      working.
      
      The empty gpio.h is required because <asm/gpio.h> includes it. A future
      cleanup round may be able to solve this for all Tegra generations at once.
      
      mach-tegra/Makefile is adjusted not to compile anything for Tegra186, but
      instead to defer everything to mach-tegra/tegra186/Makefile. This allows
      the SoC code to pick-and-choose which of the C files in the "common"
      mach-tegra/ directory to compile in based on the SoC's needs. Most of the
      code is not valid for Tegra186, and this approach removes the need for
      mach-tegra/Makefile to contain many SoC-specific ifdefs. This approach
      may be applied to all other Tegra SoCs in a future cleanup round.
      
      board186.c is introduced to replace board.c and board2.c. These files
      currently contain a slew of SoC- and board-specific code that is not
      valid for Tegra186. This approach avoids adding yet more ifdefs to those
      files. A future cleanup round may refactor most of board*.c into board-/
      SoC-specific functions files thus allowing the top-level functions like
      board_init_early_f to be shared again.
      Signed-off-by: default avatarStephen Warren <swarren@nvidia.com>
      Reviewed-by: default avatarSimon Glass <sjg@chromium.org>
      Signed-off-by: default avatarTom Warren <twarren@nvidia.com>
      c7ba99c8
    • Stephen Warren's avatar
      ARM: tegra: convert CONFIG_TEGRA_GPIO to Kconfig · 601800be
      Stephen Warren authored
      Future chips will contain different GPIO HW. This change will enable
      future SoC support to select the appropriate GPIO driver for their HW,
      in a future-looking fashion, using Kconfig.
      
      TEGRA_GPIO is not simply selected by TEGRA_COMMON (even though all
      current Tegra chips used this GPIO HW) to simplify the later addition
      of support for Tegra SoCs that use different GPIO HW.
      Signed-off-by: default avatarStephen Warren <swarren@nvidia.com>
      Reviewed-by: default avatarSimon Glass <sjg@chromium.org>
      Signed-off-by: default avatarTom Warren <twarren@nvidia.com>
      601800be
  6. 17 Feb, 2016 1 commit
  7. 16 Feb, 2016 1 commit
  8. 11 Feb, 2016 1 commit
  9. 29 Jan, 2016 1 commit
    • Stephen Warren's avatar
      ARM: tegra: shut down USB device controller at boot · dd8204de
      Stephen Warren authored
      When loading U-Boot into RAM over USB protocols using tools such as
      tegrarcm or L4T's exec-uboot.sh/tegraflash.py, Tegra's USB device
      mode controller is initialized and enumerated by the host PC running
      the tool. Unfortunately, these tools do not shut down the USB
      controller before executing the downloaded code, and so the host PC
      does not "de-enumerate" the USB device. This patch implements optional
      code to shut down the USB controller when U-Boot boots to avoid leaving
      a stale USB device present.
      Signed-off-by: default avatarStephen Warren <swarren@nvidia.com>
      Reviewed-by: default avatarSimon Glass <sjg@chromium.org>
      dd8204de
  10. 12 Jan, 2016 1 commit
  11. 01 Dec, 2015 3 commits
  12. 20 Nov, 2015 1 commit
  13. 18 Aug, 2015 1 commit
  14. 28 Jul, 2015 2 commits
  15. 26 Jun, 2015 1 commit
    • Joe Hershberger's avatar
      Move default y configs out of arch/board Kconfig · c9bb942e
      Joe Hershberger authored
      Some archs/boards specify their own default by pre-defining the config
      which causes the Kconfig system to mix up the order of the configs in
      the defconfigs... This will cause merge pain if allowed to proliferate.
      
      Remove the configs that behave this way from the archs.
      
      A few configs still remain, but that is because they only exist as
      defaults and do not have a proper Kconfig entry. Those appear to be:
      
      SPIFLASH
      DISPLAY_BOARDINFO
      Signed-off-by: default avatarJoe Hershberger <joe.hershberger@ni.com>
      [trini: rastaban, am43xx_evm_usbhost_boot, am43xx_evm_ethboot updates,
      drop DM_USB from MSI_Primo81 as USB_MUSB_SUNXI isn't converted yet to DM]
      Signed-off-by: default avatarTom Rini <trini@konsulko.com>
      c9bb942e
  16. 11 Jun, 2015 2 commits
  17. 12 May, 2015 1 commit
  18. 18 Apr, 2015 1 commit
    • Masahiro Yamada's avatar
      dm: select CONFIG_DM* options · 58d423b8
      Masahiro Yamada authored
      As mentioned in the previous commit, adding default values in each
      Kconfig causes problems because it does not co-exist with the
      "depends on" syntax.  (Please note this is not a bug of Kconfig.)
      We should not do so unless we have a special reason.  Actually,
      for CONFIG_DM*, we have no good reason to do so.
      
      Generally, CONFIG_DM is not a user-configurable option.  Once we
      convert a driver into Driver Model, the board only works with Driver
      Model, i.e. CONFIG_DM must be always enabled for that board.
      So, using "select DM" is more suitable rather than allowing users to
      modify it.  Another good thing is, Kconfig warns unmet dependencies
      for "select" syntax, so we easily notice bugs.
      
      Actually, CONFIG_DM and other related options have been added
      without consistency: some into arch/*/Kconfig, some into
      board/*/Kconfig, and some into configs/*_defconfig.
      
      This commit prefers "select" and cleans up the following issues.
      
      [1] Never use "CONFIG_DM=n" in defconfig files
      
      It is really rare to add "CONFIG_FOO=n" to disable CONFIG options.
      It is more common to use "# CONFIG_FOO is not set".  But here, we
      do not even have to do it.
      Less than half of OMAP3 boards have been converted to Driver Model.
      Adding the default values to arch/arm/cpu/armv7/omap3/Kconfig is
      weird.  Instead, add "select DM" only to appropriate boards, which
      eventually eliminates "CONFIG_DM=n", etc.
      
      [2] Delete redundant CONFIGs
      
      Sandbox sets CONFIG_DM in arch/sandbox/Kconfig and defines it again
      in configs/sandbox_defconfig.
      Likewise, OMAP3 sets CONFIG_DM arch/arm/cpu/armv7/omap3/Kconfig and
      defines it also in omap3_beagle_defconfig and devkit8000_defconfig.
      Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
      58d423b8
  19. 28 Mar, 2015 1 commit
  20. 04 Mar, 2015 1 commit
  21. 24 Feb, 2015 2 commits
    • Masahiro Yamada's avatar
      kconfig: remove unneeded dependency on !SPL_BUILD · d648964f
      Masahiro Yamada authored
      Now CONFIG_SPL_BUILD is not defined in Kconfig, so
      "!depends on SPL_BUILD" and "if !SPL_BUILD" are redundant.
      Signed-off-by: default avatarMasahiro Yamada <yamada.m@jp.panasonic.com>
      d648964f
    • Masahiro Yamada's avatar
      kconfig: switch to single .config configuration · e02ee254
      Masahiro Yamada authored
      When Kconfig for U-boot was examined, one of the biggest issues was
      how to support multiple images (Normal, SPL, TPL).  There were
      actually two options, "single .config" and "multiple .config".
      After some discussions and thought experiments, I chose the latter,
      i.e. to create ".config", "spl/.config", "tpl/.config" for Normal,
      SPL, TPL, respectively.
      
      It is true that the "multiple .config" strategy provided us the
      maximum flexibility and helped to avoid duplicating CONFIGs among
      Normal, SPL, TPL, but I have noticed some fatal problems:
      
      [1] It is impossible to share CONFIG options across the images.
        If you change the configuration of Main image, you often have to
        adjust some SPL configurations correspondingly.  Currently, we
        cannot handle the dependencies between them.  It means one of the
        biggest advantages of Kconfig is lost.
      
      [2] It is too painful to change both ".config" and "spl/.config".
        Sunxi guys started to work around this problem by creating a new
        configuration target.  Commit cbdd9a97 (sunxi: kconfig: Add
        %_felconfig rule to enable FEL build of sunxi platforms.) added
        "make *_felconfig" to enable CONFIG_SPL_FEL on both images.
        Changing the configuration of multiple images in one command is a
        generic demand.  The current implementation cannot propose any
        good solution about this.
      
      [3] Kconfig files are getting ugly and difficult to understand.
        Commit b724bd7d (dm: Kconfig: Move CONFIG_SYS_MALLOC_F_LEN to
        Kconfig) has sprinkled "if !SPL_BUILD" over the Kconfig files.
      
      [4] The build system got more complicated than it should be.
        To adjust Linux-originated Kconfig to U-Boot, the helper script
        "scripts/multiconfig.sh" was introduced.  Writing a complicated
        text processor is a shell script sometimes caused problems.
      
      Now I believe the "single .config" will serve us better.  With it,
      all the problems above would go away.  Instead, we will have to add
      some CONFIG_SPL_* (and CONFIG_TPL_*) options such as CONFIG_SPL_DM,
      but we will not have much.  Anyway, this is what we do now in
      scripts/Makefile.spl.
      
      I admit my mistake with my apology and this commit switches to the
      single .config configuration.
      
      It is not so difficult to do that:
      
       - Remove unnecessary processings from scripts/multiconfig.sh
        This file will remain for a while to support the current defconfig
        format.  It will be removed after more cleanups are done.
      
       - Adjust some makefiles and Kconfigs
      
       - Add some entries to include/config_uncmd_spl.h and the new file
         scripts/Makefile.uncmd_spl.  Some CONFIG options that are not
         supported on SPL must be disabled because one .config is shared
         between SPL and U-Boot proper going forward.  I know this is not
         a beautiful solution and I think we can do better, but let's see
         how much we will have to describe them.
      
       - update doc/README.kconfig
      
      More cleaning up patches will follow this.
      Signed-off-by: default avatarMasahiro Yamada <yamada.m@jp.panasonic.com>
      Reviewed-by: default avatarSimon Glass <sjg@chromium.org>
      e02ee254
  22. 21 Feb, 2015 1 commit
    • Masahiro Yamada's avatar
      ARM: tegra: collect SoC sources into mach-tegra · 09f455dc
      Masahiro Yamada authored
      This commit moves files as follows:
      
       arch/arm/cpu/arm720t/tegra20/*      -> arch/arm/mach-tegra/tegra20/*
       arch/arm/cpu/arm720t/tegra30/*      -> arch/arm/mach-tegra/tegra30/*
       arch/arm/cpu/arm720t/tegra114/*     -> arch/arm/mach-tegra/tegra114/*
       arch/arm/cpu/arm720t/tegra124*      -> arch/arm/mach-tegra/tegra124/*
       arch/arm/cpu/arm720t/tegra-common/* -> arch/arm/mach-tegra/*
       arch/arm/cpu/armv7/tegra20/*        -> arch/arm/mach-tegra/tegra20/*
       arch/arm/cpu/armv7/tegra30/*        -> arch/arm/mach-tegra/tegra30/*
       arch/arm/cpu/armv7/tegra114/*       -> arch/arm/mach-tegra/tegra114/*
       arch/arm/cpu/armv7/tegra124/*       -> arch/arm/mach-tegra/tegra124/*
       arch/arm/cpu/armv7/tegra-common/*   -> arch/arm/mach-tegra/*
       arch/arm/cpu/tegra20-common/*       -> arch/arm/mach-tegra/tegra20/*
       arch/arm/cpu/tegra30-common/*       -> arch/arm/mach-tegra/tegra30/*
       arch/arm/cpu/tegra114-common/*      -> arch/arm/mach-tegra/tegra114/*
       arch/arm/cpu/tegra124-common/*      -> arch/arm/mach-tegra/tegra124/*
       arch/arm/cpu/tegra-common/*         -> arch/arm/mach-tegra/*
      Signed-off-by: default avatarMasahiro Yamada <yamada.m@jp.panasonic.com>
      Tested-by: Simon Glass <sjg@chromium.org> [ on nyan-big ]
      Cc: Stephen Warren <swarren@nvidia.com>
      Cc: Tom Warren <twarren@nvidia.com>
      09f455dc
  23. 12 Feb, 2015 2 commits
  24. 13 Nov, 2014 1 commit
  25. 23 Oct, 2014 1 commit
  26. 13 Sep, 2014 1 commit
  27. 31 Aug, 2014 1 commit