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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2011-09-20 14:28:39 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2011-09-26 11:40:35 +0200 |
| commit | 58a926008cd6f3788b73af0335b695dee7859e8d (patch) | |
| tree | 1bf0ffc06b466d62193f4a151dac8976f74d1e34 /arch/arm/plat-mxc/tzic.c | |
| parent | ARM i.MX avic: add handle_irq function (diff) | |
| download | linux-58a926008cd6f3788b73af0335b695dee7859e8d.tar.xz linux-58a926008cd6f3788b73af0335b695dee7859e8d.zip | |
ARM i.MX tzic: add handle_irq function
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/plat-mxc/tzic.c')
| -rw-r--r-- | arch/arm/plat-mxc/tzic.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/arch/arm/plat-mxc/tzic.c b/arch/arm/plat-mxc/tzic.c index f257fccdc394..b7a272d16d37 100644 --- a/arch/arm/plat-mxc/tzic.c +++ b/arch/arm/plat-mxc/tzic.c @@ -42,7 +42,7 @@ #define TZIC_SRCCLAR0 0x0280 /* Source Clear Register 0 */ #define TZIC_PRIORITY0 0x0400 /* Priority Register 0 */ #define TZIC_PND0 0x0D00 /* Pending Register 0 */ -#define TZIC_HIPND0 0x0D80 /* High Priority Pending Register */ +#define TZIC_HIPND(i) (0x0D80+ ((i) << 2)) /* High Priority Pending Register */ #define TZIC_WAKEUP0(i) (0x0E00 + ((i) << 2)) /* Wakeup Config Register */ #define TZIC_SWINT 0x0F00 /* Software Interrupt Rigger Register */ #define TZIC_ID0 0x0FD0 /* Indentification Register 0 */ @@ -96,6 +96,28 @@ static __init void tzic_init_gc(unsigned int irq_start) irq_setup_generic_chip(gc, IRQ_MSK(32), 0, IRQ_NOREQUEST, 0); } +asmlinkage void __exception_irq_entry tzic_handle_irq(struct pt_regs *regs) +{ + u32 stat; + int i, irqofs, handled; + + do { + handled = 0; + + for (i = 0; i < 4; i++) { + stat = __raw_readl(tzic_base + TZIC_HIPND(i)) & + __raw_readl(tzic_base + TZIC_INTSEC0(i)); + + while (stat) { + handled = 1; + irqofs = fls(stat) - 1; + handle_IRQ(irqofs + i * 32, regs); + stat &= ~(1 << irqofs); + } + } + } while (handled); +} + /* * This function initializes the TZIC hardware and disables all the * interrupts. It registers the interrupt enable and disable functions |