1. 29 Oct, 2014 1 commit
    • Georges Savoundararadj's avatar
      kconfig: arm: introduce symbol for ARM CPUs · 2e07c249
      Georges Savoundararadj authored
      This commit introduces a Kconfig symbol for each ARM CPU:
      CPU_ARM720T, CPU_ARM920T, CPU_ARM926EJS, CPU_ARM946ES, CPU_ARM1136,
      CPU_ARM1176, CPU_V7, CPU_PXA, CPU_SA1100.
      Also, it adds the CPU feature Kconfig symbol HAS_VBAR which is selected
      for CPU_ARM1176 and CPU_V7.
      
      For each target, the corresponding CPU is selected and the definition of
      SYS_CPU in the corresponding Kconfig file is removed.
      
      Also, it removes redundant "string" type in some Kconfig files.
      Signed-off-by: 's avatarGeorges Savoundararadj <savoundg@gmail.com>
      Acked-by: 's avatarAlbert ARIBAUD <albert.u.boot@aribaud.net>
      Cc: Masahiro Yamada <yamada.m@jp.panasonic.com>
      2e07c249
  2. 13 Sep, 2014 1 commit
  3. 30 Jul, 2014 2 commits
    • Masahiro Yamada's avatar
      Add board MAINTAINERS files · 93d4334f
      Masahiro Yamada authored
      We have switched to Kconfig and the boards.cfg file is going to
      be removed. We have to retrieve the board status and maintainers
      information from it.
      
      The MAINTAINERS format as in Linux Kernel would be nice
      because we can crib the scripts/get_maintainer.pl script.
      
      After some discussion, we chose to put a MAINTAINERS file under each
      board directory, not the top-level one because we want to collect
      relevant information for a board into a single place.
      
      TODO:
      Modify get_maintainer.pl to scan multiple MAINTAINERS files.
      Signed-off-by: 's avatarMasahiro Yamada <yamada.m@jp.panasonic.com>
      Suggested-by: 's avatarTom Rini <trini@ti.com>
      Acked-by: 's avatarSimon Glass <sjg@chromium.org>
      93d4334f
    • Masahiro Yamada's avatar
      kconfig: add board Kconfig and defconfig files · dd84058d
      Masahiro Yamada authored
      This commit adds:
       - arch/${ARCH}/Kconfig
          provide a menu to select target boards
       - board/${VENDOR}/${BOARD}/Kconfig or board/${BOARD}/Kconfig
          set CONFIG macros to the appropriate values for each board
       - configs/${TARGET_BOARD}_defconfig
          default setting of each board
      
      (This commit was automatically generated by a conversion script
      based on boards.cfg)
      
      In Linux Kernel, defconfig files are located under
      arch/${ARCH}/configs/ directory.
      It works in Linux Kernel since ARCH is always given from the
      command line for cross compile.
      
      But in U-Boot, ARCH is not given from the command line.
      Which means we cannot know ARCH until the board configuration is done.
      That is why all the "*_defconfig" files should be gathered into a
      single directory ./configs/.
      Signed-off-by: 's avatarMasahiro Yamada <yamada.m@jp.panasonic.com>
      Acked-by: 's avatarSimon Glass <sjg@chromium.org>
      dd84058d
  4. 01 Nov, 2013 1 commit
  5. 20 Oct, 2013 2 commits
  6. 14 Oct, 2013 1 commit
  7. 24 Jul, 2013 1 commit
  8. 22 Oct, 2012 1 commit
  9. 15 Oct, 2012 2 commits
  10. 06 Dec, 2011 2 commits
  11. 15 Oct, 2011 1 commit
  12. 17 Nov, 2010 1 commit
    • Sebastien Carlier's avatar
      Switch from archive libraries to partial linking · 6d8962e8
      Sebastien Carlier authored
      Before this commit, weak symbols were not overridden by non-weak symbols
      found in archive libraries when linking with recent versions of
      binutils.  As stated in the System V ABI, "the link editor does not
      extract archive members to resolve undefined weak symbols".
      
      This commit changes all Makefiles to use partial linking (ld -r) instead
      of creating library archives, which forces all symbols to participate in
      linking, allowing non-weak symbols to override weak symbols as intended.
      This approach is also used by Linux, from which the gmake function
      cmd_link_o_target (defined in config.mk and used in all Makefiles) is
      inspired.
      
      The name of each former library archive is preserved except for
      extensions which change from ".a" to ".o".  This commit updates
      references accordingly where needed, in particular in some linker
      scripts.
      
      This commit reveals board configurations that exclude some features but
      include source files that depend these disabled features in the build,
      resulting in undefined symbols.  Known such cases include:
      - disabling CMD_NET but not CMD_NFS;
      - enabling CONFIG_OF_LIBFDT but not CONFIG_QE.
      Signed-off-by: 's avatarSebastien Carlier <sebastien.carlier@gmail.com>
      6d8962e8
  13. 21 Oct, 2010 1 commit
  14. 19 Oct, 2010 2 commits
  15. 18 Oct, 2010 1 commit
    • Wolfgang Denk's avatar
      Rename TEXT_BASE into CONFIG_SYS_TEXT_BASE · 14d0a02a
      Wolfgang Denk authored
      The change is currently needed to be able to remove the board
      configuration scripting from the top level Makefile and replace it by
      a simple, table driven script.
      
      Moving this configuration setting into the "CONFIG_*" name space is
      also desirable because it is needed if we ever should move forward to
      a Kconfig driven configuration system.
      Signed-off-by: 's avatarWolfgang Denk <wd@denx.de>
      14d0a02a
  16. 24 Jul, 2010 1 commit
  17. 04 Jul, 2010 1 commit
    • Wolfgang Denk's avatar
      Make sure that argv[] argument pointers are not modified. · 54841ab5
      Wolfgang Denk authored
      The hush shell dynamically allocates (and re-allocates) memory for the
      argument strings in the "char *argv[]" argument vector passed to
      commands.  Any code that modifies these pointers will cause serious
      corruption of the malloc data structures and crash U-Boot, so make
      sure the compiler can check that no such modifications are being done
      by changing the code into "char * const argv[]".
      
      This modification is the result of debugging a strange crash caused
      after adding a new command, which used the following argument
      processing code which has been working perfectly fine in all Unix
      systems since version 6 - but not so in U-Boot:
      
      int main (int argc, char **argv)
      {
      	while (--argc > 0 && **++argv == '-') {
      /* ====> */	while (*++*argv) {
      			switch (**argv) {
      			case 'd':
      				debug++;
      				break;
      			...
      			default:
      				usage ();
      			}
      		}
      	}
      	...
      }
      
      The line marked "====>" will corrupt the malloc data structures and
      usually cause U-Boot to crash when the next command gets executed by
      the shell.  With the modification, the compiler will prevent this with
      an
      	error: increment of read-only location '*argv'
      
      N.B.: The code above can be trivially rewritten like this:
      
      	while (--argc > 0 && **++argv == '-') {
      		char *arg = *argv;
      		while (*++arg) {
      			switch (*arg) {
      			...
      Signed-off-by: 's avatarWolfgang Denk <wd@denx.de>
      Acked-by: 's avatarMike Frysinger <vapier@gentoo.org>
      54841ab5
  18. 06 Jul, 2009 2 commits
  19. 15 Jun, 2009 1 commit
  20. 12 Jun, 2009 2 commits
    • Wolfgang Denk's avatar
      General help message cleanup · a89c33db
      Wolfgang Denk authored
      Many of the help messages were not really helpful; for example, many
      commands that take no arguments would not print a correct synopsis
      line, but "No additional help available." which is not exactly wrong,
      but not helpful either.
      
      Commit ``Make "usage" messages more helpful.'' changed this
      partially. But it also became clear that lots of "Usage" and "Help"
      messages (fields "usage" and "help" in struct cmd_tbl_s respective)
      were actually redundant.
      
      This patch cleans this up - for example:
      
      Before:
      	=> help dtt
      	dtt - Digital Thermometer and Thermostat
      
      	Usage:
      	dtt         - Read temperature from digital thermometer and thermostat.
      
      After:
      	=> help dtt
      	dtt - Read temperature from Digital Thermometer and Thermostat
      
      	Usage:
      	dtt
      Signed-off-by: 's avatarWolfgang Denk <wd@denx.de>
      a89c33db
    • Jean-Christophe PLAGNIOL-VILLARD's avatar
      arm: unify linker script · 10a451cd
      Jean-Christophe PLAGNIOL-VILLARD authored
      all arm boards except a few use the same cpu linker script
      so move it to cpu/$(CPU)
      
      that could be overwrite in following order
      SOC
      BOARD
      via the corresponding config.mk
      Signed-off-by: 's avatarJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
      10a451cd
  21. 09 Jun, 2009 1 commit
  22. 20 Mar, 2009 1 commit
    • Trent Piepho's avatar
      Fix all linker script to handle all rodata sections · f62fb999
      Trent Piepho authored
      A recent gcc added a new unaligned rodata section called '.rodata.str1.1',
      which needs to be added the the linker script.  Instead of just adding this
      one section, we use a wildcard ".rodata*" to get all rodata linker section
      gcc has now and might add in the future.
      
      However, '*(.rodata*)' by itself will result in sub-optimal section
      ordering.  The sections will be sorted by object file, which causes extra
      padding between the unaligned rodata.str.1.1 of one object file and the
      aligned rodata of the next object file.  This is easy to fix by using the
      SORT_BY_ALIGNMENT command.
      
      This patch has not be tested one most of the boards modified.  Some boards
      have a linker script that looks something like this:
      
      *(.text)
      . = ALIGN(16);
      *(.rodata)
      *(.rodata.str1.4)
      *(.eh_frame)
      
      I change this to:
      
      *(.text)
      . = ALIGN(16);
      *(.eh_frame)
      *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
      
      This means the start of rodata will no longer be 16 bytes aligned.
      However, the boundary between text and rodata/eh_frame is still aligned to
      16 bytes, which is what I think the real purpose of the ALIGN call is.
      Signed-off-by: 's avatarTrent Piepho <xyzzy@speakeasy.org>
      f62fb999
  23. 28 Jan, 2009 2 commits
  24. 18 Nov, 2008 1 commit
  25. 18 Oct, 2008 1 commit
  26. 02 Jul, 2008 1 commit
  27. 03 May, 2008 1 commit
  28. 12 Jan, 2008 1 commit
    • Wolfgang Denk's avatar
      Fix linker scripts: add NOLOAD atribute to .bss/.sbss sections · 64134f01
      Wolfgang Denk authored
      With recent toolchain versions, some boards would not build because
      or errors like this one (here for ocotea board when building with
      ELDK 4.2 beta):
      ppc_4xx-ld: section .bootpg [fffff000 -> fffff23b] overlaps section .bss [fffee900 -> fffff8ab]
      
      For many boards, the .bss section is big enough that it wraps around
      at the end of the address space (0xFFFFFFFF), so the problem will not
      be visible unless you use a 64 bit tool chain for development. On
      some boards however, changes to the code size (due to different
      optimizations) we bail out with section overlaps like above.
      
      The fix is to add the NOLOAD attribute to the .bss and .sbss
      sections, telling the linker that .bss does not consume any space in
      the image.
      Signed-off-by: 's avatarWolfgang Denk <wd@denx.de>
      64134f01
  29. 06 Sep, 2007 2 commits