1/*
 2 * arch/arm/mach-at91/at91x40.c
 3 *
 4 * (C) Copyright 2007, Greg Ungerer <gerg@snapgear.com>
 5 * Copyright (C) 2005 SAN People
 6 *
 7 * This program is free software; you can redistribute it and/or modify
 8 * it under the terms of the GNU General Public License as published by
 9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 */
12
13#include <linux/kernel.h>
14#include <linux/init.h>
15#include <linux/irq.h>
16#include <asm/mach/arch.h>
17#include <mach/at91x40.h>
18#include <mach/at91_st.h>
19#include <mach/timex.h>
20#include "generic.h"
21
22/*
23 * Export the clock functions for the AT91X40. Some external code common
24 * to all AT91 family parts relys on this, like the gpio and serial support.
25 */
26int clk_enable(struct clk *clk)
27{
28	return 0;
29}
30
31void clk_disable(struct clk *clk)
32{
33}
34
35unsigned long clk_get_rate(struct clk *clk)
36{
37	return AT91X40_MASTER_CLOCK;
38}
39
40void __init at91x40_initialize(unsigned long main_clock)
41{
42	at91_extern_irq = (1 << AT91X40_ID_IRQ0) | (1 << AT91X40_ID_IRQ1)
43			| (1 << AT91X40_ID_IRQ2);
44}
45
46/*
47 * The default interrupt priority levels (0 = lowest, 7 = highest).
48 */
49static unsigned int at91x40_default_irq_priority[NR_AIC_IRQS] __initdata = {
50	7,	/* Advanced Interrupt Controller (FIQ) */
51	0,	/* System Peripherals */
52	0,	/* USART 0 */
53	0,	/* USART 1 */
54	2,	/* Timer Counter 0 */
55	2,	/* Timer Counter 1 */
56	2,	/* Timer Counter 2 */
57	0,	/* Watchdog timer */
58	0,	/* Parallel IO Controller A */
59	0,	/* Reserved */
60	0,	/* Reserved */
61	0,	/* Reserved */
62	0,	/* Reserved */
63	0,	/* Reserved */
64	0,	/* Reserved */
65	0,	/* Reserved */
66	0,	/* External IRQ0 */
67	0,	/* External IRQ1 */
68	0,	/* External IRQ2 */
69};
70
71void __init at91x40_init_interrupts(unsigned int priority[NR_AIC_IRQS])
72{
73	if (!priority)
74		priority = at91x40_default_irq_priority;
75
76	at91_aic_init(priority);
77}
78