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authorSongmao Tian <tiansm@lemote.com>2007-06-06 14:52:38 +0800
committerRalf Baechle <ralf@linux-mips.org>2007-07-10 17:33:02 +0100
commit42d226c7248a28ff8c478c06b7e9bd9ef5d73574 (patch)
tree7749c1204cbdb481ddece008dc09234c48b769db /arch/mips/lemote/lm2e/bonito-irq.c
parent2a21c7300b53b744d16903256a172d9cbcfdd03e (diff)
downloadop-kernel-dev-42d226c7248a28ff8c478c06b7e9bd9ef5d73574.zip
op-kernel-dev-42d226c7248a28ff8c478c06b7e9bd9ef5d73574.tar.gz
[MIPS] New files for lemote fulong mini-PC support
Signed-off-by: Fuxin Zhang <zhangfx@lemote.com> Signed-off-by: Songmao Tian <tiansm@lemote.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/lemote/lm2e/bonito-irq.c')
-rw-r--r--arch/mips/lemote/lm2e/bonito-irq.c74
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
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--- /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);
+}
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