Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / mips / txx9 / generic / irq_tx4927.c

diff --git a/kernel/arch/mips/txx9/generic/irq_tx4927.c b/kernel/arch/mips/txx9/generic/irq_tx4927.c
new file mode 100644 (file)
index 0000000..ed8e702
--- /dev/null
+++ b/kernel/arch/mips/txx9/generic/irq_tx4927.c
@@ -0,0 +1,49 @@
+/*
+ * Common tx4927 irq handler
+ *
+ * Author: MontaVista Software, Inc.
+ *        source@mvista.com
+ *
+ *  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/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <asm/irq_cpu.h>
+#include <asm/txx9/tx4927.h>
+
+void __init tx4927_irq_init(void)
+{
+       int i;
+
+       mips_cpu_irq_init();
+       txx9_irq_init(TX4927_IRC_REG & 0xfffffffffULL);
+       irq_set_chained_handler(MIPS_CPU_IRQ_BASE + TX4927_IRC_INT,
+                               handle_simple_irq);
+       /* raise priority for errors, timers, SIO */
+       txx9_irq_set_pri(TX4927_IR_ECCERR, 7);
+       txx9_irq_set_pri(TX4927_IR_WTOERR, 7);
+       txx9_irq_set_pri(TX4927_IR_PCIERR, 7);
+       txx9_irq_set_pri(TX4927_IR_PCIPME, 7);
+       for (i = 0; i < TX4927_NUM_IR_TMR; i++)
+               txx9_irq_set_pri(TX4927_IR_TMR(i), 6);
+       for (i = 0; i < TX4927_NUM_IR_SIO; i++)
+               txx9_irq_set_pri(TX4927_IR_SIO(i), 5);
+}