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Greg Ungerereb1d65a2007-07-30 02:38:57 +01001/*
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>
Russell Kinga09e64f2008-08-05 16:14:15 +010017#include <mach/at91x40.h>
18#include <mach/at91_st.h>
19#include <mach/timex.h>
Greg Ungerereb1d65a2007-07-30 02:38:57 +010020#include "generic.h"
21
22/*
Greg Ungerer66aaeff2008-05-23 08:26:24 +010023 * 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.
Greg Ungerereb1d65a2007-07-30 02:38:57 +010025 */
26int clk_enable(struct clk *clk)
27{
28 return 0;
29}
30
Greg Ungerer66aaeff2008-05-23 08:26:24 +010031void clk_disable(struct clk *clk)
32{
33}
34
35unsigned long clk_get_rate(struct clk *clk)
36{
37 return AT91X40_MASTER_CLOCK;
38}
39
Greg Ungerereb1d65a2007-07-30 02:38:57 +010040void __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