sparc: Simplify trap table initialization

Move _ISR_Handler() to a separate file since it is now only used if a handler
is installed by _CPU_ISR_install_raw_handler().

Statically initialize the traps for external interrupts to use the new
_SPARC_Interrupt_trap() which directly dispatches the interrupt handlers
installed by rtems_interrupt_handler_install() via the BSP-provided
_SPARC_Interrupt_dispatch().

Since the trap table is now fully statically initialized, there is no longer a
dependency on the Cache Manager in the default configuration.

Update #4458.

1 files changed, 4 insertions, 11 deletions

diff --git a/bsps/sparc/erc32/start/bspstart.c b/bsps/sparc/erc32/start/bspstart.c
index d56d3b2ff2..1979c68308 100644
--- a/bsps/sparc/erc32/start/bspstart.c
+++ b/bsps/sparc/erc32/start/bspstart.c
@@ -12,22 +12,15 @@
 
 #include <bsp.h>
 #include <bsp/bootcard.h>
+#include <bsp/irq-generic.h>
 #include <rtems/sysinit.h>
 
 /*
- * Called just before drivers are initialized.  Is used to initialize shared
- * interrupt handling.
+ * Initialize shared interrupt handling, must be done after IRQ controller has
+ * been found and initialized.
  */
-static void erc32_pre_driver_hook( void )
-{
-  /* Initialize shared interrupt handling, must be done after IRQ
-   * controller has been found and initialized.
-   */
-  BSP_shared_interrupt_init();
-}
-
 RTEMS_SYSINIT_ITEM(
-  erc32_pre_driver_hook,
+  bsp_interrupt_initialize,
   RTEMS_SYSINIT_BSP_PRE_DRIVERS,
   RTEMS_SYSINIT_ORDER_MIDDLE
 );