diff options
Diffstat (limited to 'arch/sh/lib/time.c')
| -rw-r--r-- | arch/sh/lib/time.c | 45 |
1 files changed, 13 insertions, 32 deletions
diff --git a/arch/sh/lib/time.c b/arch/sh/lib/time.c index eb642969aab..fb317f95d55 100644 --- a/arch/sh/lib/time.c +++ b/arch/sh/lib/time.c @@ -13,44 +13,25 @@ #include <common.h> #include <asm/processor.h> #include <asm/io.h> -#include <sh_tmu.h> -#define TCR_TPSC 0x07 +#if defined(CONFIG_CPU_SH3) +#define TSTR 0x2 +#define TCR0 0xc +#endif /* CONFIG_CPU_SH3 */ -static struct tmu_regs *tmu = (struct tmu_regs *)TMU_BASE; +#if defined(CONFIG_CPU_SH4) || defined(CONFIG_ARCH_RMOBILE) +#define TSTR 0x4 +#define TCR0 0x10 +#endif /* CONFIG_CPU_SH4 */ -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); -} - -unsigned long timer_read_counter(void) -{ - return ~readl(&tmu->tcnt0); -} - -static void tmu_timer_start(unsigned int timer) -{ - if (timer > 2) - return; - writeb(readb(&tmu->tstr) | (1 << timer), &tmu->tstr); -} - -static void tmu_timer_stop(unsigned int timer) -{ - if (timer > 2) - return; - writeb(readb(&tmu->tstr) & ~(1 << timer), &tmu->tstr); -} +#define TCR_TPSC 0x07 +#define TSTR_STR0 BIT(0) 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); - - tmu_timer_stop(0); - tmu_timer_start(0); + writew(readw(TMU_BASE + TCR0) & ~TCR_TPSC, TMU_BASE + TCR0); + writeb(readb(TMU_BASE + TSTR) & ~TSTR_STR0, TMU_BASE + TSTR); + writeb(readb(TMU_BASE + TSTR) | TSTR_STR0, TMU_BASE + TSTR); return 0; } |