Eric Lee / smarc-uboot

05 Nov, 2013

1 commit

24 Jul, 2013

1 commit

16 Oct, 2012

2 commits

24 Aug, 2012

1 commit

21 Jun, 2012

2 commits

06 Oct, 2011

1 commit

19 Oct, 2010

1 commit

  • 14d0a02a1   Rename TEXT_BASE into CONFIG_SYS_TEXT_BASE ... Browse Code »

    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: Wolfgang Denk

    Wolfgang Denk
     

22 Jul, 2009

1 commit

17 Dec, 2008

1 commit

19 Oct, 2008

1 commit

11 Sep, 2008

2 commits

13 Aug, 2008

1 commit

05 Jun, 2008

1 commit

  • a55d48174   [MIPS] lib_mips/time.c: Fix CP0 count register usage and timer routines ... Browse Code »

    MIPS port has two problems in timer routines. One is now we assume CFG_HZ
    equals to CP0 counter frequency, but this is wrong. CFG_HZ has to be 1000
    in the U-Boot system.

    The other is we don't have a proper time management counter like timestamp
    other ARCHs have. We need the 32-bit millisecond clock counter.

    This patch introduces timestamp and CYCLES_PER_JIFFY. timestamp is a
    32-bit non-overflowing CFG_HZ counter, and CYCLES_PER_JIFFY is the number
    of calculated CP0 counter cycles in a CFG_HZ.

    STRATEGY:

    * Fix improper CFG_HZ value to have 1000

    * Use CFG_MIPS_TIMER_FREQ for timer counter frequency, instead.

    * timer_init: initialize timestamp and set up the first timer expiration.
    Note that we don't need to initialize CP0 count/compare registers here
    as they have been already zeroed out on the system reset. Leave them as
    they are.

    * get_timer: calculate how many timestamps have been passed, then return
    base-relative timestamp. Make sure we can easily count missed timestamps
    regardless of CP0 count/compare value.

    * get_ticks: return the current timestamp, that is get_timer(0).

    Most parts are from good old Linux v2.6.16 kernel.

    v2:
    - Remove FIXME comments as they turned out to be trivial.
    - Use CP0 compare register as a global variable for expirelo.
    - Kill a global variable 'cycles_per_jiffy'. Use #define CYCLES_PER_JIFFY
    instead.

    Signed-off-by: Shinya Kuribayashi

    Shinya Kuribayashi
     

25 Apr, 2008

2 commits

12 Feb, 2008

1 commit

17 Jan, 2008

2 commits