Merge pull request #293 from VisorFolks/feature/akashkollipara/ibex-s…

…im-exit-support

<ibex> Add support for exiting simulation

projects/demo_ibex_ss/project.c

@@ -10,34 +10,22 @@
 
 #include <status.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include <terravisor/bootstrap.h>
 #include <driver.h>
 #include <time.h>
+#include <platform.h>
 
 void plug()
 {
 	bootstrap();
 	driver_setup_all();
 
 	printf("Demo Program!\n");
+	mdelay(1000);
+	printf("Bye...\n");
+	exit(EXIT_SUCCESS);
 	return;
 }
 
-
-void play()
-{
-	static unsigned char i = 0;
-	char progress[] = "-\\|/";
-	uint64_t time;
-	char c = progress[(i++) % strlen(progress)];
-	get_timestamp(&time);
-	time /= 1000U;
-
-	printf("[%012llu] Running Blinky ... [%c]", time, c);
-
-	mdelay(500);
-
-	printf("\r");
-	return;
-}

src/platform/ibex/simple_system/platform/platform.c

@@ -19,7 +19,9 @@
 #include <terravisor/platform.h>
 #include <visor/workers.h>
 #include <platform.h>
+#include <mmio.h>
 
+static void platform_sim_halt();
 
 void platform_early_setup()
 {
@@ -76,6 +78,7 @@ void platform_setup()
 	cyancore_insignia();
 	platform_print_cpu_info();
 	platform_memory_layout();
+	atexit(&platform_sim_halt);
 	return;
 }
 
@@ -84,3 +87,9 @@ void platform_cpu_setup()
 	arch_ei();
 	return;
 }
+
+static void platform_sim_halt()
+{
+	uintptr_t sim_ctrl_base = 0x20000;
+	MMIO32(sim_ctrl_base + 0x8) = 1;
+}