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/*
* arch/arm/mach-ns9xxx/irq-ns921x.c
*
* Copyright (C) 2008 by Digi International Inc.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*/
#include <linux/errno.h>
#include <linux/kernel.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <mach/regs-sys-ns921x.h>
#include "processor-ns921x.h"
static const u32 ns921x_irq2powermask[] = {
[IRQ_NS9XXX_ETHRX] = SYS_POWER_ETH,
[IRQ_NS921X_UARTA] = SYS_POWER_UARTA,
[IRQ_NS921X_UARTB] = SYS_POWER_UARTB,
[IRQ_NS921X_UARTC] = SYS_POWER_UARTC,
[IRQ_NS921X_UARTD] = SYS_POWER_UARTD,
[IRQ_NS921X_SPI] = SYS_POWER_SPI,
[IRQ_NS921X_I2C] = SYS_POWER_I2C,
[IRQ_NS9215_RTC] = SYS_POWER_RTC,
[IRQ_NS9XXX_EXT0] = SYS_POWER_EXTIRQ0,
[IRQ_NS9XXX_EXT1] = SYS_POWER_EXTIRQ1,
[IRQ_NS9XXX_EXT2] = SYS_POWER_EXTIRQ2,
[IRQ_NS9XXX_EXT3] = SYS_POWER_EXTIRQ3,
};
int ns921x_set_wake_irq(unsigned int irq, unsigned int on)
{
unsigned long flags;
u32 power;
if (irq > ARRAY_SIZE(ns921x_irq2powermask) ||
!ns921x_irq2powermask[irq])
return -ENOENT;
local_irq_save(flags);
power = __raw_readl(SYS_POWER);
if (on)
power |= ns921x_irq2powermask[irq];
else
power &= ~ns921x_irq2powermask[irq];
__raw_writel(power, SYS_POWER);
local_irq_restore(flags);
return 0;
}
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