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| author | Marek Vasut <marek.vasut+renesas@gmail.com> | 2018-08-24 21:20:31 +0200 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2018-09-15 03:19:07 +0200 |
| commit | eb05dcfea29bbafbc9f8ce3b7894e3e53f35d743 (patch) | |
| tree | 1100e9cc334c2b7dc347cb6c9921a96bea3a852f | |
| parent | d1da5d6cd8d33f777cf8374bf070970c4cca32e1 (diff) | |
| download | u-boot-eb05dcfea29bbafbc9f8ce3b7894e3e53f35d743.tar.gz u-boot-eb05dcfea29bbafbc9f8ce3b7894e3e53f35d743.tar.bz2 u-boot-eb05dcfea29bbafbc9f8ce3b7894e3e53f35d743.zip | |
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 <marek.vasut+renesas@gmail.com>
| -rw-r--r-- | arch/sh/lib/time.c | 7 |
1 files changed, 2 insertions, 5 deletions
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 <sh_tmu.h> #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); |