diff options
Diffstat (limited to 'arch/sh/lib/time.c')
| -rw-r--r-- | arch/sh/lib/time.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/sh/lib/time.c b/arch/sh/lib/time.c index 1fe537e..c554fe8 100644 --- a/arch/sh/lib/time.c +++ b/arch/sh/lib/time.c @@ -17,15 +17,17 @@ #include <asm/io.h> #include <sh_tmu.h> +#define TCR_TPSC 0x07 + static struct tmu_regs *tmu = (struct tmu_regs *)TMU_BASE; -static u16 bit; static unsigned long last_tcnt; static unsigned long long overflow_ticks; unsigned long get_tbclk(void) { - return get_tmu0_clk_rate() >> ((bit + 1) * 2); + u16 tmu_bit = (ffs(CONFIG_SYS_TMU_CLK_DIV) >> 1) - 1; + return get_tmu0_clk_rate() >> ((tmu_bit + 1) * 2); } static inline unsigned long long tick_to_time(unsigned long long tick) @@ -60,8 +62,8 @@ static void tmu_timer_stop(unsigned int timer) int timer_init(void) { - bit = (ffs(CONFIG_SYS_TMU_CLK_DIV) >> 1) - 1; - writew(readw(&tmu->tcr0) | bit, &tmu->tcr0); + u16 tmu_bit = (ffs(CONFIG_SYS_TMU_CLK_DIV) >> 1) - 1; + writew((readw(&tmu->tcr0) & ~TCR_TPSC) | tmu_bit, &tmu->tcr0); tmu_timer_stop(0); tmu_timer_start(0); |