aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-shmobile/intc-r8a7779.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-shmobile/intc-r8a7779.c')
-rw-r--r--arch/arm/mach-shmobile/intc-r8a7779.c58
1 files changed, 58 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/intc-r8a7779.c b/arch/arm/mach-shmobile/intc-r8a7779.c
new file mode 100644
index 00000000000..5d92fcde2bc
--- /dev/null
+++ b/arch/arm/mach-shmobile/intc-r8a7779.c
@@ -0,0 +1,58 @@
+/*
+ * r8a7779 processor support - INTC hardware block
+ *
+ * Copyright (C) 2011 Renesas Solutions Corp.
+ * Copyright (C) 2011 Magnus Damm
+ *
+ * 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; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+#include <mach/common.h>
+#include <mach/intc.h>
+#include <mach/r8a7779.h>
+#include <asm/hardware/gic.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+
+#define INT2SMSKCR0 0xfe7822a0
+#define INT2SMSKCR1 0xfe7822a4
+#define INT2SMSKCR2 0xfe7822a8
+#define INT2SMSKCR3 0xfe7822ac
+#define INT2SMSKCR4 0xfe7822b0
+
+static int r8a7779_set_wake(struct irq_data *data, unsigned int on)
+{
+ return 0; /* always allow wakeup */
+}
+
+void __init r8a7779_init_irq(void)
+{
+ void __iomem *gic_dist_base = __io(0xf0001000);
+ void __iomem *gic_cpu_base = __io(0xf0000100);
+
+ /* use GIC to handle interrupts */
+ gic_init(0, 29, gic_dist_base, gic_cpu_base);
+ gic_arch_extn.irq_set_wake = r8a7779_set_wake;
+
+ /* unmask all known interrupts in INTCS2 */
+ __raw_writel(0xfffffff0, INT2SMSKCR0);
+ __raw_writel(0xfff7ffff, INT2SMSKCR1);
+ __raw_writel(0xfffbffdf, INT2SMSKCR2);
+ __raw_writel(0xbffffffc, INT2SMSKCR3);
+ __raw_writel(0x003fee3f, INT2SMSKCR4);
+}