diff options
| author | John Crispin <blogic@openwrt.org> | 2013-04-03 09:58:44 +0000 |
|---|---|---|
| committer | John Crispin <blogic@openwrt.org> | 2013-04-03 09:58:44 +0000 |
| commit | 84238ad24d5bdf6b95cc3d972908d699502764ab (patch) | |
| tree | 6438279d1866fffb0c66b568f2ee3e64f2aa89b0 /target/linux/ramips/files-3.7/arch/mips/ralink/rt305x/irq.c | |
| parent | fd1af44d07b5c0eccd58bf24805810d2f0077936 (diff) | |
| download | upstream-84238ad24d5bdf6b95cc3d972908d699502764ab.tar.gz upstream-84238ad24d5bdf6b95cc3d972908d699502764ab.tar.bz2 upstream-84238ad24d5bdf6b95cc3d972908d699502764ab.zip | |
[ramips] move files to files-3.7
Signed-off-by: John Crispin <blogic@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36161 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/ramips/files-3.7/arch/mips/ralink/rt305x/irq.c')
| -rw-r--r-- | target/linux/ramips/files-3.7/arch/mips/ralink/rt305x/irq.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/target/linux/ramips/files-3.7/arch/mips/ralink/rt305x/irq.c b/target/linux/ramips/files-3.7/arch/mips/ralink/rt305x/irq.c new file mode 100644 index 0000000000..fcac2dd860 --- /dev/null +++ b/target/linux/ramips/files-3.7/arch/mips/ralink/rt305x/irq.c @@ -0,0 +1,82 @@ +/* + * 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; +} |