21 lines
457 B
C
21 lines
457 B
C
|
#include <linux/init.h>
|
||
|
|
#include <asm/io.h>
|
||
|
|
#include <asm/time.h>
|
||
|
|
|
||
|
|
#define QEMU_PORT_BASE 0xb4000000
|
||
|
|
|
||
|
|
static void __init qemu_timer_setup(struct irqaction *irq)
|
||
|
|
{
|
||
|
|
/* set the clock to 100 Hz */
|
||
|
|
outb_p(0x34,0x43); /* binary, mode 2, LSB/MSB, ch 0 */
|
||
|
|
outb_p(LATCH & 0xff , 0x40); /* LSB */
|
||
|
|
outb(LATCH >> 8 , 0x40); /* MSB */
|
||
|
|
setup_irq(0, irq);
|
||
|
|
}
|
||
|
|
|
||
|
|
void __init plat_setup(void)
|
||
|
|
{
|
||
|
|
set_io_port_base(QEMU_PORT_BASE);
|
||
|
|
board_timer_setup = qemu_timer_setup;
|
||
|
|
}
|