diff options
Diffstat (limited to 'arch/mips/au1000/common/time.c')
| -rw-r--r-- | arch/mips/au1000/common/time.c | 19 |
1 files changed, 4 insertions, 15 deletions
diff --git a/arch/mips/au1000/common/time.c b/arch/mips/au1000/common/time.c index 1966964590ab..57aea3164d9a 100644 --- a/arch/mips/au1000/common/time.c +++ b/arch/mips/au1000/common/time.c @@ -48,9 +48,7 @@ #include <linux/mc146818rtc.h> #include <linux/timex.h> -static unsigned long r4k_offset; /* Amount to increment compare reg each time */ -static unsigned long r4k_cur; /* What counter should be at next timer irq */ -int no_au1xxx_32khz; +static int no_au1xxx_32khz; extern int allow_au1k_wait; /* default off for CP0 Counter */ #ifdef CONFIG_PM @@ -184,7 +182,7 @@ wakeup_counter0_set(int ticks) * "wait" is enabled, and we need to detect if the 32KHz isn't present * but requested......got it? :-) -- Dan */ -unsigned long cal_r4koff(void) +unsigned long calc_clock(void) { unsigned long cpu_speed; unsigned long flags; @@ -229,19 +227,13 @@ unsigned long cal_r4koff(void) // Equation: Baudrate = CPU / (SD * 2 * CLKDIV * 16) set_au1x00_uart_baud_base(cpu_speed / (2 * ((int)(au_readl(SYS_POWERCTRL)&0x03) + 2) * 16)); spin_unlock_irqrestore(&time_lock, flags); - return (cpu_speed / HZ); + return cpu_speed; } void __init plat_time_init(void) { - unsigned int est_freq; + unsigned int est_freq = calc_clock(); - printk("calculating r4koff... "); - r4k_offset = cal_r4koff(); - printk("%08lx(%d)\n", r4k_offset, (int) r4k_offset); - - //est_freq = 2*r4k_offset*HZ; - est_freq = r4k_offset*HZ; est_freq += 5000; /* round */ est_freq -= est_freq%10000; printk("CPU frequency %d.%02d MHz\n", est_freq/1000000, @@ -249,9 +241,6 @@ void __init plat_time_init(void) set_au1x00_speed(est_freq); set_au1x00_lcd_clock(); // program the LCD clock - r4k_cur = (read_c0_count() + r4k_offset); - write_c0_compare(r4k_cur); - #ifdef CONFIG_PM /* * setup counter 0, since it keeps ticking after a |