From eb05dcfea29bbafbc9f8ce3b7894e3e53f35d743 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Fri, 24 Aug 2018 21:20:31 +0200 Subject: sh: tmu: Simplify the tmu_bit math The tmu_bit value evaluates to (ffs(4) >> 1) - 1 = (3 >> 1) - 1 = 0. Just drop the tmu_bit completely as well as CONFIG_SYS_TMU_CLK_DIV. Signed-off-by: Marek Vasut --- arch/sh/lib/time.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) (limited to 'arch/sh') diff --git a/arch/sh/lib/time.c b/arch/sh/lib/time.c index aac79889dc..302f6bed83 100644 --- a/arch/sh/lib/time.c +++ b/arch/sh/lib/time.c @@ -16,14 +16,12 @@ #include #define TCR_TPSC 0x07 -#define CONFIG_SYS_TMU_CLK_DIV 4 static struct tmu_regs *tmu = (struct tmu_regs *)TMU_BASE; unsigned long get_tbclk(void) { - u16 tmu_bit = (ffs(CONFIG_SYS_TMU_CLK_DIV) >> 1) - 1; - return get_tmu0_clk_rate() >> ((tmu_bit + 1) * 2); + return get_tmu0_clk_rate() >> 2; } unsigned long timer_read_counter(void) @@ -47,8 +45,7 @@ static void tmu_timer_stop(unsigned int timer) int timer_init(void) { - u16 tmu_bit = (ffs(CONFIG_SYS_TMU_CLK_DIV) >> 1) - 1; - writew((readw(&tmu->tcr0) & ~TCR_TPSC) | tmu_bit, &tmu->tcr0); + writew(readw(&tmu->tcr0) & ~TCR_TPSC, &tmu->tcr0); tmu_timer_stop(0); tmu_timer_start(0); -- cgit v1.2.3