From e07b6868b371721a86a71a337194308d23d71da0 Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Mon, 3 Jan 2000 14:14:37 +0000
Subject: Added tm27 stuff.

---
 c/src/lib/libbsp/powerpc/shared/include/bsp.h | 48 +++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

(limited to 'c/src/lib')

diff --git a/c/src/lib/libbsp/powerpc/shared/include/bsp.h b/c/src/lib/libbsp/powerpc/shared/include/bsp.h
index a2be655e1e..a1295dec71 100644
--- a/c/src/lib/libbsp/powerpc/shared/include/bsp.h
+++ b/c/src/lib/libbsp/powerpc/shared/include/bsp.h
@@ -55,6 +55,54 @@ extern void rtemsReboot(void);
 extern int printk(const char *, ...) __attribute__((format(printf, 1, 2)));
 extern int BSP_disconnect_clock_handler (void);
 extern int BSP_connect_clock_handler (void);
+
+/*
+ *  TM27 stuff
+ */
+
+#if defined(MCP750) && defined(RTEMS_TM27)
+
+#define MUST_WAIT_FOR_INTERRUPT 1
+
+void nullFunc() {}
+static rtems_irq_connect_data clockIrqData = {BSP_DECREMENTER,
+					      0,
+					      (rtems_irq_enable)nullFunc,
+					      (rtems_irq_disable)nullFunc,
+					      (rtems_irq_is_enabled) nullFunc};
+void Install_tm27_vector(void (*_handler)())
+{
+  clockIrqData.hdl = _handler;
+  if (!BSP_install_rtems_irq_handler (&clockIrqData)) {
+	printk("Error installing clock interrupt handler!\n");
+	rtems_fatal_error_occurred(1);
+  }
+}
+
+#define Cause_tm27_intr()  \
+  do { \
+    unsigned32 _clicks = 8; \
+    asm volatile( "mtdec %0" : "=r" ((_clicks)) : "r" ((_clicks)) ); \
+  } while (0)
+
+
+#define Clear_tm27_intr() \
+  do { \
+    unsigned32 _clicks = 0xffffffff; \
+    asm volatile( "mtdec %0" : "=r" ((_clicks)) : "r" ((_clicks)) ); \
+  } while (0)
+
+#define Lower_tm27_intr() \
+  do { \
+    unsigned32 _msr = 0; \
+    _ISR_Set_level( 0 ); \
+    asm volatile( "mfmsr %0 ;" : "=r" (_msr) : "r" (_msr) ); \
+    _msr |=  0x8002; \
+    asm volatile( "mtmsr %0 ;" : "=r" (_msr) : "r" (_msr) ); \
+  } while (0)
+#endif
+
+
 #endif
 
 #endif
-- 
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