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| author | Greg Ungerer <gerg@snapgear.com> | 2007-07-30 02:38:57 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2007-10-12 23:43:05 +0100 |
| commit | eb1d65aa1b21c9021949c0ece443501b0c135fef (patch) | |
| tree | 31a9d03a768d984b7b86b676c1d5a1e3992ff43f /arch/arm/mach-at91/at91x40.c | |
| parent | 699a714501f028b1db2bf741111a0df856128899 (diff) | |
| download | linux-eb1d65aa1b21c9021949c0ece443501b0c135fef.tar.gz linux-eb1d65aa1b21c9021949c0ece443501b0c135fef.tar.bz2 linux-eb1d65aa1b21c9021949c0ece443501b0c135fef.zip | |
[ARM] 4534/1: AT91x40 interrupt support
Interrupt setup support for the Atmel AT91x40 CPU family.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-at91/at91x40.c')
| -rw-r--r-- | arch/arm/mach-at91/at91x40.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/at91x40.c b/arch/arm/mach-at91/at91x40.c new file mode 100644 index 000000000000..1de121fc55f4 --- /dev/null +++ b/arch/arm/mach-at91/at91x40.c @@ -0,0 +1,67 @@ +/* + * arch/arm/mach-at91/at91x40.c + * + * (C) Copyright 2007, Greg Ungerer <gerg@snapgear.com> + * Copyright (C) 2005 SAN People + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/irq.h> +#include <asm/mach/arch.h> +#include <asm/arch/at91x40.h> +#include <asm/arch/at91_st.h> +#include "generic.h" + +/* + * This is used in the gpio code, stub locally. + */ +int clk_enable(struct clk *clk) +{ + return 0; +} + +void __init at91x40_initialize(unsigned long main_clock) +{ + at91_extern_irq = (1 << AT91X40_ID_IRQ0) | (1 << AT91X40_ID_IRQ1) + | (1 << AT91X40_ID_IRQ2); +} + +/* + * The default interrupt priority levels (0 = lowest, 7 = highest). + */ +static unsigned int at91x40_default_irq_priority[NR_AIC_IRQS] __initdata = { + 7, /* Advanced Interrupt Controller (FIQ) */ + 0, /* System Peripherals */ + 0, /* USART 0 */ + 0, /* USART 1 */ + 2, /* Timer Counter 0 */ + 2, /* Timer Counter 1 */ + 2, /* Timer Counter 2 */ + 0, /* Watchdog timer */ + 0, /* Parallel IO Controller A */ + 0, /* Reserved */ + 0, /* Reserved */ + 0, /* Reserved */ + 0, /* Reserved */ + 0, /* Reserved */ + 0, /* Reserved */ + 0, /* Reserved */ + 0, /* External IRQ0 */ + 0, /* External IRQ1 */ + 0, /* External IRQ2 */ +}; + +void __init at91x40_init_interrupts(unsigned int priority[NR_AIC_IRQS]) +{ + if (!priority) + priority = at91x40_default_irq_priority; + + at91_aic_init(priority); +} + |