• Alessandro Rubini's avatar
    lib: add usleep.c (and call its own init from main) · 3497d157
    Alessandro Rubini authored
    This adds a real usleep implementation. The init function calculates
    the "loops per jiffy" variable, by watching the timer ticks before
    interrupts are enabled by spll_init().  This init takes 40ms.
    Then, the udelay runs the same loop used in calculating lpj, and
    is thus correct (it will be slower because we have interrupts running
    at run time, but this is not a problem).
    Signed-off-by: Alessandro Rubini's avatarAlessandro Rubini <rubini@gnudd.com>
usleep.c 1.58 KB