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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-09-08 01:01:14 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-09-08 01:01:14 -0300
commite5fd91f1ef340da553f7a79da9540c3db711c937 (patch)
treeb11842027dc6641da63f4bcc524f8678263304a3 /arch/mips/loongson64/common/bonito-irq.c
parent2a9b0348e685a63d97486f6749622b61e9e3292f (diff)
Linux-libre 4.2-gnu
Diffstat (limited to 'arch/mips/loongson64/common/bonito-irq.c')
-rw-r--r--arch/mips/loongson64/common/bonito-irq.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/arch/mips/loongson64/common/bonito-irq.c b/arch/mips/loongson64/common/bonito-irq.c
new file mode 100644
index 000000000..4e116d23b
--- /dev/null
+++ b/arch/mips/loongson64/common/bonito-irq.c
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
+ * Copyright (C) 2000, 2001 Ralf Baechle (ralf@gnu.org)
+ *
+ * Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology
+ * Author: Fuxin Zhang, zhangfx@lemote.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+#include <linux/interrupt.h>
+#include <linux/compiler.h>
+
+#include <loongson.h>
+
+static inline void bonito_irq_enable(struct irq_data *d)
+{
+ LOONGSON_INTENSET = (1 << (d->irq - LOONGSON_IRQ_BASE));
+ mmiowb();
+}
+
+static inline void bonito_irq_disable(struct irq_data *d)
+{
+ LOONGSON_INTENCLR = (1 << (d->irq - LOONGSON_IRQ_BASE));
+ mmiowb();
+}
+
+static struct irq_chip bonito_irq_type = {
+ .name = "bonito_irq",
+ .irq_mask = bonito_irq_disable,
+ .irq_unmask = bonito_irq_enable,
+};
+
+static struct irqaction __maybe_unused dma_timeout_irqaction = {
+ .handler = no_action,
+ .name = "dma_timeout",
+};
+
+void bonito_irq_init(void)
+{
+ u32 i;
+
+ for (i = LOONGSON_IRQ_BASE; i < LOONGSON_IRQ_BASE + 32; i++)
+ irq_set_chip_and_handler(i, &bonito_irq_type,
+ handle_level_irq);
+
+#ifdef CONFIG_CPU_LOONGSON2E
+ setup_irq(LOONGSON_IRQ_BASE + 10, &dma_timeout_irqaction);
+#endif
+}