1 files changed, 74 insertions, 0 deletions

diff --git a/arch/mips/lemote/lm2e/bonito-irq.c b/arch/mips/lemote/lm2e/bonito-irq.c
new file mode 100644
index 000000000000..8fc3bce7075b
--- /dev/null
+++ b/arch/mips/lemote/lm2e/bonito-irq.c
@@ -0,0 +1,74 @@
+/*
+ * 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. & Insititute 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.
+ *
+ *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
+ *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
+ *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the  GNU General Public License along
+ *  with this program; if not, write  to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+
+#include <asm/mips-boards/bonito64.h>
+
+
+static inline void bonito_irq_enable(unsigned int irq)
+{
+        BONITO_INTENSET = (1 << (irq - BONITO_IRQ_BASE));
+        mmiowb();
+}
+
+static inline void bonito_irq_disable(unsigned int irq)
+{
+        BONITO_INTENCLR = (1 << (irq - BONITO_IRQ_BASE));
+        mmiowb();
+}
+
+static struct irq_chip bonito_irq_type = {
+        .name   = "bonito_irq",
+        .ack    = bonito_irq_disable,
+        .mask   = bonito_irq_disable,
+        .mask_ack = bonito_irq_disable,
+        .unmask = bonito_irq_enable,
+};
+
+static struct irqaction dma_timeout_irqaction = {
+        .handler        = no_action,
+        .name           = "dma_timeout",
+};
+
+void bonito_irq_init(void)
+{
+        u32 i;
+
+        for (i = BONITO_IRQ_BASE; i < BONITO_IRQ_BASE + 32; i++) {
+                set_irq_chip_and_handler(i, &bonito_irq_type, handle_level_irq);
+        }
+
+        setup_irq(BONITO_IRQ_BASE + 10, &dma_timeout_irqaction);
+}