mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-24 21:22:49 +02:00
d786690857
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27377 3c298f89-4303-0410-b956-a3cf2f4a3e73
83 lines
1.8 KiB
C
83 lines
1.8 KiB
C
/*
|
|
* Ralink RT305x SoC specific interrupt handling
|
|
*
|
|
* Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
|
|
*
|
|
* 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/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/irq.h>
|
|
|
|
#include <asm/irq_cpu.h>
|
|
#include <asm/mipsregs.h>
|
|
|
|
#include <asm/mach-ralink/common.h>
|
|
#include <asm/mach-ralink/rt305x.h>
|
|
#include <asm/mach-ralink/rt305x_regs.h>
|
|
|
|
static void rt305x_intc_irq_dispatch(void)
|
|
{
|
|
u32 pending;
|
|
|
|
pending = ramips_intc_get_status();
|
|
|
|
if (pending & RT305X_INTC_INT_TIMER0)
|
|
do_IRQ(RT305X_INTC_IRQ_TIMER0);
|
|
|
|
else if (pending & RT305X_INTC_INT_TIMER1)
|
|
do_IRQ(RT305X_INTC_IRQ_TIMER1);
|
|
|
|
else if (pending & RT305X_INTC_INT_UART0)
|
|
do_IRQ(RT305X_INTC_IRQ_UART0);
|
|
|
|
else if (pending & RT305X_INTC_INT_UART1)
|
|
do_IRQ(RT305X_INTC_IRQ_UART1);
|
|
|
|
else if (pending & RT305X_INTC_INT_PERFC)
|
|
do_IRQ(RT305X_INTC_IRQ_PERFC);
|
|
|
|
else if (pending & RT305X_INTC_INT_OTG)
|
|
do_IRQ(RT305X_INTC_IRQ_OTG);
|
|
|
|
/* TODO: handle PIO interrupts as well */
|
|
|
|
else
|
|
spurious_interrupt();
|
|
}
|
|
|
|
asmlinkage void plat_irq_dispatch(void)
|
|
{
|
|
unsigned long pending;
|
|
|
|
pending = read_c0_status() & read_c0_cause() & ST0_IM;
|
|
|
|
if (pending & STATUSF_IP7)
|
|
do_IRQ(RT305X_CPU_IRQ_COUNTER);
|
|
|
|
else if (pending & STATUSF_IP5)
|
|
do_IRQ(RT305X_CPU_IRQ_FE);
|
|
|
|
else if (pending & STATUSF_IP6)
|
|
do_IRQ(RT305X_CPU_IRQ_WNIC);
|
|
|
|
else if (pending & STATUSF_IP2)
|
|
rt305x_intc_irq_dispatch();
|
|
|
|
else
|
|
spurious_interrupt();
|
|
}
|
|
|
|
void __init arch_init_irq(void)
|
|
{
|
|
mips_cpu_irq_init();
|
|
ramips_intc_irq_init(RT305X_INTC_BASE, RT305X_CPU_IRQ_INTC,
|
|
RT305X_INTC_IRQ_BASE);
|
|
|
|
cp0_perfcount_irq = RT305X_INTC_IRQ_PERFC;
|
|
}
|