From 4159370f5dbf77526a900a5374a1cd7c634937b8 Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Tue, 11 Jul 2000 21:16:53 +0000
Subject: Reworked score/cpu/sparc so it can be safely compiled multilib.  All
 routines and structures that require CPU model specific information are now
 in libcpu.  This primarily required moving erc32 specific information from
 score/cpu files to libcpu/sparc and the erc32 BSP.

---
 c/src/lib/libbsp/sparc/erc32/include/bsp.h      |  6 ++---
 c/src/lib/libbsp/sparc/erc32/start/start.S      |  2 +-
 c/src/lib/libbsp/sparc/erc32/startup/bspstart.c | 36 +++++++++++++++++++++++++
 3 files changed, 40 insertions(+), 4 deletions(-)

(limited to 'c/src/lib/libbsp')

diff --git a/c/src/lib/libbsp/sparc/erc32/include/bsp.h b/c/src/lib/libbsp/sparc/erc32/include/bsp.h
index 6af1353548..ec90b1a520 100644
--- a/c/src/lib/libbsp/sparc/erc32/include/bsp.h
+++ b/c/src/lib/libbsp/sparc/erc32/include/bsp.h
@@ -19,8 +19,8 @@
  *  $Id$
  */
 
-#ifndef __SIS_h
-#define __SIS_h
+#ifndef __ERC32_BSP_h
+#define __ERC32_BSP_h
 
 #ifdef __cplusplus
 extern "C" {
@@ -28,7 +28,7 @@ extern "C" {
 
 #include <rtems.h>
 #include <iosupp.h>
-#include <erc32.h>
+#include <libcpu/erc32.h>
 #include <clockdrv.h>
 
 #include <console.h>
diff --git a/c/src/lib/libbsp/sparc/erc32/start/start.S b/c/src/lib/libbsp/sparc/erc32/start/start.S
index 4ccdbf0ac8..562f16a625 100644
--- a/c/src/lib/libbsp/sparc/erc32/start/start.S
+++ b/c/src/lib/libbsp/sparc/erc32/start/start.S
@@ -11,7 +11,7 @@
  */
 
 #include <asm.h>
-#include <erc32.h>
+#include <libcpu/erc32.h>
 
 /*
  *  Unexpected trap will halt the processor by forcing it to error state
diff --git a/c/src/lib/libbsp/sparc/erc32/startup/bspstart.c b/c/src/lib/libbsp/sparc/erc32/startup/bspstart.c
index cd3df53b29..e7c0d6630b 100644
--- a/c/src/lib/libbsp/sparc/erc32/startup/bspstart.c
+++ b/c/src/lib/libbsp/sparc/erc32/startup/bspstart.c
@@ -44,6 +44,12 @@ rtems_cpu_table   Cpu_table;
 
 extern rtems_unsigned32  rdb_start;
 
+/*
+ *  Mirror of the Timer Control Register
+ */
+
+unsigned32 _ERC32_MEC_Timer_Control_Mirror;
+
 /*
  * Amount to increment itimer by each pass
  * It is a variable instead of a #define to allow the 'looptest'
@@ -164,6 +170,21 @@ void bsp_pretasking_hook(void)
   bsp_spurious_initialize();
 }
 
+/*
+ *  ERC32_Idle_thread_body
+ *
+ *  ERC32 specific idle task that enters low power mode.
+ */
+
+void ERC32_Idle_thread_body( void ) 
+{
+  while (1) {
+    ERC32_MEC.Power_Down = 0;   /* value is irrelevant */
+  }
+}
+
+
+
 /*
  *  bsp_start
  *
@@ -191,6 +212,15 @@ void bsp_start( void )
     ERC32_MEC.Wait_State_Configuration = 0; 
 
   }
+
+  /*
+   *  Initialize the mirror of the Timer Control register.
+   */
+
+  _ERC32_MEC_Timer_Control_Mirror = 0;
+  ERC32_MEC.Timer_Control = 0;
+
+  ERC32_MEC.Control |= ERC32_CONFIGURATION_POWER_DOWN_ALLOWED;
   
   /*
    * Set up our hooks
@@ -208,6 +238,12 @@ void bsp_start( void )
    */
   Cpu_table.do_zero_of_workspace = TRUE;
 
+  /*
+   *  ERC32 specific idle task.
+   */
+
+  Cpu_table.idle_task = ERC32_Idle_thread_body;
+
   /*
    *  This should be enough interrupt stack.
    */
-- 
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