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  1. 30 Dec, 2013 1 commit
  2. 13 Oct, 2013 1 commit
    • Yuvaraj Kumar C D's avatar
      ARM: exynos: dts: Update 5250 arch timer node with clock frequency · 4d594dd3
      Yuvaraj Kumar C D authored
      Without the "clock-frequency" property in arch timer node, could able
      to see the below crash dump.
      
      [<c0014e28>] (unwind_backtrace+0x0/0xf4) from [<c0011808>] (show_stack+0x10/0x14)
      [<c0011808>] (show_stack+0x10/0x14) from [<c036ac1c>] (dump_stack+0x7c/0xb0)
      [<c036ac1c>] (dump_stack+0x7c/0xb0) from [<c01ab760>] (Ldiv0_64+0x8/0x18)
      [<c01ab760>] (Ldiv0_64+0x8/0x18) from [<c0062f60>] (clockevents_config.part.2+0x1c/0x74)
      [<c0062f60>] (clockevents_config.part.2+0x1c/0x74) from [<c0062fd8>] (clockevents_config_and_register+0x20/0x2c)
      [<c0062fd8>] (clockevents_config_and_register+0x20/0x2c) from [<c02b8e8c>] (arch_timer_setup+0xa8/0x134)
      [<c02b8e8c>] (arch_timer_setup+0xa8/0x134) from [<c04b47b4>] (arch_timer_init+0x1f4/0x24c)
      [<c04b47b4>] (arch_timer_init+0x1f4/0x24c) from [<c04b40d8>] (clocksource_of_init+0x34/0x58)
      [<c04b40d8>] (clocksource_of_init+0x34/0x58) from [<c049ed8c>] (time_init+0x20/0x2c)
      [<c049ed8c>] (time_init+0x20/0x2c) from [<c049b95c>] (start_kernel+0x1e0/0x39c)
      
      THis is because the Exynos u-boot, for example on the Chromebooks, doesn't set
      up the CNTFRQ register as expected by arch_timer. Instead, we have to specify
      the frequency in the device tree like this.
      Signed-off-by: default avatarYuvaraj Kumar C D <yuvaraj.cd@samsung.com>
      [olof: Changed subject, added comment, elaborated on commit message]
      Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
      4d594dd3
  3. 07 Oct, 2013 3 commits
  4. 25 Aug, 2013 3 commits
  5. 18 Aug, 2013 3 commits
  6. 16 Aug, 2013 2 commits
  7. 13 Aug, 2013 2 commits
  8. 05 Aug, 2013 1 commit
  9. 31 Jul, 2013 1 commit
  10. 28 Jun, 2013 1 commit
  11. 18 Jun, 2013 5 commits
  12. 17 Jun, 2013 1 commit
  13. 10 Jun, 2013 3 commits
  14. 20 May, 2013 1 commit
  15. 27 Apr, 2013 1 commit
    • Doug Anderson's avatar
      ARM: dts: Disable the RTC by default on exynos5 · 522ccdb6
      Doug Anderson authored
      This change makes the rtc on the exynos5250 and 5440 disabled by
      default to match exynos4.
      
      Ever since the common clock framework came in, exynos5250 boards
      have dumped lots of warnings in the boot log. It turns out that
      we don't see those on exynos4 since the rtc is disabled by default.
      While we need to get to the bottom of the problems with the RTC,
      it still makes sense to have the default state of the RTC on exynos
      boards match.
      
      For the record, warnings look like this:
        ------------[ cut here ]------------
        WARNING: at drivers/clk/clk.c:771 __clk_enable+0x34/0xb0()
        Modules linked in:
        [<80015bfc>] (unwind_backtrace+0x0/0xec) from [<804717f0>] (dump_stack+0x20/0x24)
        [<804717f0>] (dump_stack+0x20/0x24) from [<80023cd0>] (warn_slowpath_common+0x5c/0x7c)
        [<80023cd0>] (warn_slowpath_common+0x5c/0x7c) from [<80023d1c>] (warn_slowpath_null+0x2c/0x34)
        [<80023d1c>] (warn_slowpath_null+0x2c/0x34) from [<8035ddb0>] (__clk_enable+0x34/0xb0)
        [<8035ddb0>] (__clk_enable+0x34/0xb0) from [<8035de54>] (clk_enable+0x28/0x3c)
        [<8035de54>] (clk_enable+0x28/0x3c) from [<8031a160>] (s3c_rtc_probe+0xf4/0x434)
        [<8031a160>] (s3c_rtc_probe+0xf4/0x434) from [<8028e288>] (platform_drv_probe+0x24/0x28)
        [<8028e288>] (platform_drv_probe+0x24/0x28) from [<8028ce10>] (driver_probe_device+0xbc/0x22c)
        [<8028ce10>] (driver_probe_device+0xbc/0x22c) from [<8028cff8>] (__driver_attach+0x78/0x9c)
        [<8028cff8>] (__driver_attach+0x78/0x9c) from [<8028bdfc>] (bus_for_each_dev+0x64/0xac)
        [<8028bdfc>] (bus_for_each_dev+0x64/0xac) from [<8028c7e0>] (driver_attach+0x28/0x30)
        [<8028c7e0>] (driver_attach+0x28/0x30) from [<8028c43c>] (bus_add_driver+0xe0/0x234)
        [<8028c43c>] (bus_add_driver+0xe0/0x234) from [<8028d55c>] (driver_register+0xac/0x13c)
        [<8028d55c>] (driver_register+0xac/0x13c) from [<8028e4f4>] (platform_driver_register+0x54/0x68)
        [<8028e4f4>] (platform_driver_register+0x54/0x68) from [<8065c944>] (s3c_rtc_driver_init+0x14/0x1c)
        [<8065c944>] (s3c_rtc_driver_init+0x14/0x1c) from [<800086d8>] (do_one_initcall+0x60/0x138)
        [<800086d8>] (do_one_initcall+0x60/0x138) from [<80633a8c>] (kernel_init_freeable+0x108/0x1d0)
        [<80633a8c>] (kernel_init_freeable+0x108/0x1d0) from [<8046d2f8>] (kernel_init+0x1c/0xf4)
        [<8046d2f8>] (kernel_init+0x1c/0xf4) from [<8000e358>] (ret_from_fork+0x14/0x20)
        ---[ end trace 4bcdc801c868d73f ]---
      Signed-off-by: default avatarDoug Anderson <dianders@chromium.org>
      Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
      Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
      522ccdb6
  16. 25 Apr, 2013 1 commit
  17. 08 Apr, 2013 6 commits
  18. 25 Mar, 2013 2 commits
  19. 09 Mar, 2013 1 commit
  20. 07 Mar, 2013 1 commit