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  1. Dec 13, 2013
    • Guilherme Maciel Ferreira's avatar
      Add dumpimage, a tool to extract data from U-Boot images · a804b5ce
      Guilherme Maciel Ferreira authored
      
      Given a multi-file image created through the mkimage's -d option:
      
        $ mkimage -A x86 -O linux -T multi -n x86 -d vmlinuz:initrd.img:System.map \
        multi.img
      
        Image Name:   x86
        Created:      Thu Jul 25 10:29:13 2013
        Image Type:   Intel x86 Linux Multi-File Image (gzip compressed)
        Data Size:    13722956 Bytes = 13401.32 kB = 13.09 MB
        Load Address: 00000000
        Entry Point:  00000000
        Contents:
           Image 0: 4040128 Bytes = 3945.44 kB = 3.85 MB
           Image 1: 7991719 Bytes = 7804.41 kB = 7.62 MB
           Image 2: 1691092 Bytes = 1651.46 kB = 1.61 MB
      
      It is possible to perform the innverse operation -- extracting any file from
      the image -- by using the dumpimage's -i option:
      
        $ dumpimage -i multi.img -p 2 System.map
      
      Although it's feasible to retrieve "data files" from image through scripting,
      the requirement to embed tools such 'dd', 'awk' and 'sed' for this sole purpose
      is cumbersome and unreliable -- once you must keep track of file sizes inside
      the image. Furthermore, extracting data files using "dumpimage" tool is faster
      than through scripting.
      
      Signed-off-by: default avatarGuilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>
      Signed-off-by: default avatarSimon Glass <sjg@chromium.org>
      a804b5ce
  2. Dec 06, 2013
  3. Nov 25, 2013
  4. Nov 13, 2013
  5. Nov 11, 2013
    • Heiko Schocher's avatar
      arm, am33x: make RTC32K OSC enable configurable · 16678eb4
      Heiko Schocher authored
      As
      http://www.denx.de/wiki/view/U-Boot/DesignPrinciples#2_Keep_it_Fast
      
      
      states:
      "Initialize devices only when they are needed within U-Boot"
      
      enable the RTC32K OSC only, if CONFIG_SPL_AM33XX_ENABLE_RTC32K_OSC is
      enabled. Enable this in ti_am335x_common.h, so all boards in mainline
      should work as before.
      
      Signed-off-by: default avatarHeiko Schocher <hs@denx.de>
      Cc: Tom Rini <trini@ti.com>
      16678eb4
    • Heiko Schocher's avatar
      bootcount: store bootcount var in environment · eda0ba38
      Heiko Schocher authored
      
      If no softreset save registers are found on the hardware
      "bootcount" is stored in the environment. To prevent a
      saveenv on all reboots, the environment variable
      "upgrade_available" is introduced. If "upgrade_available" is
      0, "bootcount" is always 0 therefore no need to save the
      environment on u-boot boot, if "upgrade_available" is 1 "bootcount"
      is incremented in the environment and environment gets written
      on u-boot start.
      So the Userspace Applikation must set the "upgrade_available"
      and "bootcount" variable to 0 (for example with fw_setenv),
      if a boot was successfully.
      
      Signed-off-by: default avatarHeiko Schocher <hs@denx.de>
      eda0ba38
  6. Nov 08, 2013
    • Przemyslaw Marczak's avatar
      usb: ums: add ums exit feature by ctrl+c or by detach usb cable · 351e9b20
      Przemyslaw Marczak authored
      
      This patch allows exiting from UMS mode to u-boot prompt
      by detaching usb cable or by pressing ctrl+c.
      
      Add new config: CONFIG_USB_CABLE_CHECK. If defined then board
      file should provide function: usb_cable_connected() (include/usb.h)
      that return 1 if cable is connected and 0 otherwise.
      
      Changes v2:
      - add a note to the README
      
      Signed-off-by: default avatarPrzemyslaw Marczak <p.marczak@samsung.com>
      Cc: Marek Vasut <marex@denx.de>
      351e9b20
    • Igor Grinberg's avatar
      README: remove wrong config name · 39d9abfa
      Igor Grinberg authored
      
      There is no CONFIG_PCA953X_INFO symbol.
      U-Boot uses CONFIG_CMD_PCA953X_INFO instead, which is described in
      "Monitor Functions" section and thus no need to be repeated in the
      "GPIO Support" section.
      Remove the whole line.
      
      Signed-off-by: default avatarIgor Grinberg <grinberg@compulab.co.il>
      39d9abfa
    • Andrew Ruder's avatar
      cmd_nvedit.c: Add env exists command · 88733e2c
      Andrew Ruder authored
      
      env exists is a way to test (in hush) if an environment variable
      exists.  A workaround existed using printenv but this new command
      doesn't require all the stdout/stderr redirection to prevent
      printing information to the screen.
      
      Example:
      $ set testexists 1
      $ env exists testexists && echo "yes"
      yes
      $ env exists testexists || echo "no"
      $ set testexists
      $ env exists testexists && echo "yes"
      $ env exists testexists || echo "no"
      no
      $
      
      Signed-off-by: default avatarAndrew Ruder <andrew.ruder@elecsyscorp.com>
      88733e2c
  7. Oct 30, 2013
  8. Oct 17, 2013
  9. Oct 14, 2013
  10. Oct 07, 2013
  11. Sep 24, 2013
    • Afzal Mohammed's avatar
      dfu: ram support · a9479f04
      Afzal Mohammed authored
      
      DFU spec mentions it as a method to upgrade firmware (software stored
      in writable non-volatile memory). It also says other potential uses of
      DFU is beyond scope of the spec.
      
      Here such a beyond the scope use is being attempted - directly pumping
      binary images from host via USB to RAM. This facility is a developer
      centric one in that it gives advantage over upgrading non-volatile
      memory for testing new images every time during development and/or
      testing.
      
      Directly putting image onto RAM would speed up upgrade process. This and
      convenience was the initial thoughts that led to doing this, speed
      improvement over MMC was only 1 second though - 6 sec on RAM as opposed
      to 7 sec on MMC in beagle bone, perhaps enabling cache and/or optimizing
      DFU framework to avoid multiple copy for ram (if worth) may help, and
      on other platforms and other boot media like NAND maybe improvement
      would be higher.
      
      And for a platform that doesn't yet have proper DFU suppport for
      non-volatile media's, DFU to RAM can be used.
      
      Another minor advantage would be to increase life of mmc/nand as it
      would be less used during development/testing.
      
      usage: <image name> ram <start address> <size>
      eg. kernel ram 0x81000000 0x1000000
      
      Downloading images to RAM using DFU is not something new, this is
      acheived in openmoko also.
      
      DFU on RAM can be used for extracting RAM contents to host using dfu
      upload. Perhaps this can be extended to io for squeezing out register
      dump through usb, if it is worth.
      
      Signed-off-by: default avatarAfzal Mohammed <afzal.mohd.ma@gmail.com>
      Cc: Heiko Schocher <hs@denx.de>
      Cc: Marek Vasut <marex@denx.de>
      Cc: Lukasz Majewski <l.majewski@samsung.com>
      Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
      Cc: Gerhard Sittig <gsi@denx.de>
      Acked-by: default avatarMarek Vasut <marex@denx.de>
      Acked-by: default avatarLukasz Majewski <l.majewski@samsung.com>
      Acked-by: default avatarHeiko Schocher <hs@denx.de>
      a9479f04
  12. Sep 23, 2013
  13. Sep 20, 2013
  14. Sep 19, 2013
  15. Sep 12, 2013
  16. Sep 03, 2013
  17. Aug 20, 2013
  18. Aug 16, 2013
    • Simon Glass's avatar
      RFC: bootm: Add silent_linux environment variable · 8d51aacd
      Simon Glass authored
      
      At present the console for linux is silent if the U-Boot console is silent,
      unless CONFIG_SILENT_U_BOOT_ONLY is set. I wonder if a better way would be
      to have an environment variable to control this? Then we can control the
      verbosity from scripts, and set the variable to 'no' for those boards that
      want Linux to boot with console output.
      
      Signed-off-by: default avatarSimon Glass <sjg@chromium.org>
      8d51aacd
  19. Aug 09, 2013
  20. Jul 27, 2013
  21. Jul 24, 2013
    • Wolfgang Denk's avatar
      Licenses: introduce SPDX Unique Lincense Identifiers · eca3aeb3
      Wolfgang Denk authored
      Like many other projects, U-Boot has a tradition of including big
      blocks of License headers in all files.  This not only blows up the
      source code with mostly redundant information, but also makes it very
      difficult to generate License Clearing Reports.  An additional problem
      is that even the same lincenses are referred to by a number of
      slightly varying text blocks (full, abbreviated, different
      indentation, line wrapping and/or white space, with obsolete address
      information, ...) which makes automatic processing a nightmare.
      
      To make this easier, such license headers in the source files will be
      replaced with a single line reference to Unique Lincense Identifiers
      as defined by the Linux Foundation's SPDX project [1].  For example,
      in a source file the full "GPL v2.0 or later" header text will be
      replaced by a single line:
      
              SPDX-License-Identifier:        GPL-2.0+
      
      We use the SPDX Unique Lincense Identifiers here; these are available
      at [2].
      
      Note: From the legal point of view, this patch is supposed to be only
      a change to the textual representation of the license information,
      but in no way any change to the actual license terms. With this patch
      applied, all files will still be licensed under the same terms they
      were before.
      
      Note 2: The apparent difference between the old "COPYING" and the new
      "Licenses/gpl-2.0.txt" only results from switching to the upstream
      version of the license which is differently formatted; there are not
      any actual changes to the content.
      
      Note 3: There are some recurring questions about linense issues, such
      as:
          - Is a "All Rights Reserved" clause a problem in GPL code?
          - Are files without any license header a problem?
          - Do we need license headers at all?
      
      The following excerpt from an e-mail by Daniel B. Ravicher should help
      with these:
      
      | Message-ID: <4ADF8CAA.5030808@softwarefreedom.org>
      | Date: Wed, 21 Oct 2009 18:35:22 -0400
      | From: "Daniel B. Ravicher" <ravicher@softwarefreedom.org>
      | To: Wolfgang Denk <wd@denx.de>
      | Subject: Re: GPL and license cleanup questions
      |
      | Mr. Denk,
      |
      | Wolfgang Denk wrote:
      | > - There are a number of files which do not include any specific
      | > license information at all. Is it correct to assume that these files
      | > are automatically covered by the "GPL v2 or later" clause as
      | > specified by the COPYING file in the top level directory of the
      | > U-Boot source tree?
      |
      | That is a very fact specific analysis and could be different across the
      | various files.  However, if the contributor could reasonably be expected
      | to have known that the project was licensed GPLv2 or later at the time
      | she made her contribution, then a reasonably implication is that she
      | consented to her contributions being distributed under those terms.
      |
      | > - Do such files need any clean up, for example should we add GPL
      | > headers to them, or is this not needed?
      |
      | If the project as a whole is licensed under clear terms, you need not
      | identify those same terms in each file, although there is no harm in
      | doing so.
      |
      | > - There are other files, which include both a GPL license header
      | > _plus_ some copyright note with an "All Rights Reserved" clause. It
      | > has been my understanding that this is a conflict, and me must ask
      | > the copyright holders to remove such "All Rights Reserved" clauses.
      | > But then, some people claim that "All Rights Reserved" is a no-op
      | > nowadays. License checking tools (like OSLC) seem to indicate this is
      | > a problem, but then we see quite a lot of "All rights reserved" in
      | > BSD-licensed files in gcc and glibc. So what is the correct way to
      | > deal with such files?
      |
      | It is not a conflict to grant a license and also reserve all rights, as
      | implicit in that language is that you are reserving all "other" rights
      | not granted in the license.  Thus, a file with "Licensed under GPL, All
      | Rights Reserved" would mean that it is licensed under the GPL, but no
      | other rights are given to copy, modify or redistribute it.
      |
      | Warm regards,
      | --Dan
      |
      | Daniel B. Ravicher, Legal Director
      | Software Freedom Law Center (SFLC) and Moglen Ravicher LLC
      | 1995 Broadway, 17th Fl., New York, NY 10023
      | (212) 461-1902 direct  (212) 580-0800 main  (212) 580-0898 fax
      | ravicher@softwarefreedom.org   www.softwarefreedom.org
      
      [1] http://spdx.org/
      [2] http://spdx.org/licenses/
      
      
      
      Signed-off-by: default avatarWolfgang Denk <wd@denx.de>
      eca3aeb3
  22. Jul 23, 2013
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