diff options
Diffstat (limited to 'arch/alpha/kernel/setup.c')
| -rw-r--r-- | arch/alpha/kernel/setup.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c index f53d556e3..0fa1129ee 100644 --- a/arch/alpha/kernel/setup.c +++ b/arch/alpha/kernel/setup.c @@ -22,6 +22,11 @@ #include <linux/delay.h> #include <linux/config.h> /* CONFIG_ALPHA_LCA etc */ +#ifdef CONFIG_RTC +#include <linux/ioport.h> +#include <linux/timex.h> +#endif + #include <asm/uaccess.h> #include <asm/pgtable.h> #include <asm/system.h> @@ -83,9 +88,17 @@ static void init_pit (void) outb(0x18, 0x41); #endif +#ifdef CONFIG_RTC /* setup interval timer if /dev/rtc is being used */ + outb(0x34, 0x43); /* binary, mode 2, LSB/MSB, ch 0 */ + outb(LATCH & 0xff, 0x40); /* LSB */ + outb(LATCH >> 8, 0x40); /* MSB */ + request_region(0x40, 0x20, "timer"); /* reserve pit */ +#else outb(0x36, 0x43); /* counter 0: system timer */ outb(0x00, 0x40); outb(0x00, 0x40); + request_region(0x70, 0x10, "timer"); /* reserve rtc */ +#endif outb(0xb6, 0x43); /* counter 2: speaker */ outb(0x31, 0x42); |