From ed292123bc5c9a242273ad5e9251da05fc7377c6 Mon Sep 17 00:00:00 2001
From: blogic <blogic@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Wed, 3 Apr 2013 09:58:44 +0000
Subject: [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
---
 .../ramips/files-3.7/arch/mips/ralink/rt305x/irq.c | 82 ++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 target/linux/ramips/files-3.7/arch/mips/ralink/rt305x/irq.c

(limited to 'target/linux/ramips/files-3.7/arch/mips/ralink/rt305x/irq.c')

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 000000000..fcac2dd86
--- /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;
+}
-- 
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