[PATCH] Fix beagle bsp irq issue

[Sichen Zhao]

Enable/disable vector routines now check for a valid vector.
Without these guards, the enable/disable vector routines
will not work with the interrupt server.
---
 c/src/lib/libbsp/arm/beagle/irq.c | 22 ++++++++++++++--------
 1 file changed, 14 insertions(+), 8 deletions(-)

diff --git a/c/src/lib/libbsp/arm/beagle/irq.c b/c/src/lib/libbsp/arm/beagle/irq.c
index d080a5e..35750ba 100644
--- a/c/src/lib/libbsp/arm/beagle/irq.c
+++ b/c/src/lib/libbsp/arm/beagle/irq.c
@@ -98,11 +98,14 @@ static uint32_t omap_get_mir_reg(rtems_vector_number vector, uint32_t *const mas
 rtems_status_code bsp_interrupt_vector_enable(rtems_vector_number vector)
 {
   uint32_t mask, cur;
-  uint32_t mir_reg = omap_get_mir_reg(vector, &mask);
 
-  cur = mmio_read(omap_intr.base + mir_reg);
-  mmio_write(omap_intr.base + mir_reg, cur & ~mask);
-  flush_data_cache();
+  if (bsp_interrupt_is_valid_vector(vector)) {
+    uint32_t mir_reg = omap_get_mir_reg(vector, &mask);
+
+    cur = mmio_read(omap_intr.base + mir_reg);
+    mmio_write(omap_intr.base + mir_reg, cur & ~mask);
+    flush_data_cache();
+  }
 
   return RTEMS_SUCCESSFUL;
 }
@@ -110,11 +113,14 @@ rtems_status_code bsp_interrupt_vector_enable(rtems_vector_number vector)
 rtems_status_code bsp_interrupt_vector_disable(rtems_vector_number vector)
 {
   uint32_t mask, cur;
-  uint32_t mir_reg = omap_get_mir_reg(vector, &mask);
 
-  cur = mmio_read(omap_intr.base + mir_reg);
-  mmio_write(omap_intr.base + mir_reg, cur | mask);
-  flush_data_cache();
+  if (bsp_interrupt_is_valid_vector(vector)) {
+    uint32_t mir_reg = omap_get_mir_reg(vector, &mask);
+
+    cur = mmio_read(omap_intr.base + mir_reg);
+    mmio_write(omap_intr.base + mir_reg, cur | mask);
+    flush_data_cache();
+  }
 
   return RTEMS_SUCCESSFUL;
 }
-- 
2.7.4