timer_init function sets timer prescaler bit. The previous code so did not mask this bit, this function was to overwrite the bit. This will fix this problem.
Signed-off-by: Nobuhiro Iwamatsu nobuhiro.iwamatsu.yj@renesas.com --- arch/sh/lib/time.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/sh/lib/time.c b/arch/sh/lib/time.c index 1fe537e..8f83d46 100644 --- a/arch/sh/lib/time.c +++ b/arch/sh/lib/time.c @@ -17,6 +17,8 @@ #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; @@ -61,7 +63,7 @@ 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); + writew((readw(&tmu->tcr0) & ~TCR_TPSC) | bit, &tmu->tcr0);
tmu_timer_stop(0); tmu_timer_start(0);