| Ralf Baechle | 0711962 | 2005-09-03 15:56:11 -0700 | [diff] [blame^] | 1 | #include <linux/init.h> |
| 2 | #include <asm/io.h> |
| 3 | #include <asm/time.h> |
| 4 | |
| 5 | #define QEMU_PORT_BASE 0xb4000000 |
| 6 | |
| 7 | static void __init qemu_timer_setup(struct irqaction *irq) |
| 8 | { |
| 9 | /* set the clock to 100 Hz */ |
| 10 | outb_p(0x34,0x43); /* binary, mode 2, LSB/MSB, ch 0 */ |
| 11 | outb_p(LATCH & 0xff , 0x40); /* LSB */ |
| 12 | outb(LATCH >> 8 , 0x40); /* MSB */ |
| 13 | setup_irq(0, irq); |
| 14 | } |
| 15 | |
| 16 | void __init plat_setup(void) |
| 17 | { |
| 18 | set_io_port_base(QEMU_PORT_BASE); |
| 19 | board_timer_setup = qemu_timer_setup; |
| 20 | } |