From c185965bc6cd4f96c4dcfde880d1af639c4bf43d Mon Sep 17 00:00:00 2001
From: NicJA <NicJA@fb15a70f-31f2-0310-bbcc-cdcc74a49acc>
Date: Mon, 14 Jan 2013 13:23:21 +0000
Subject: [PATCH] add coldreboot by jumping to the reset vector.  push boot
 tasks 'real' stack into exec.

git-svn-id: https://svn.aros.org/svn/aros/trunk/AROS@46269 fb15a70f-31f2-0310-bbcc-cdcc74a49acc
---
 arch/arm-raspi/exec/coldreboot.c    | 57 +++++++++++++++++++++++++++++++++++++
 arch/arm-raspi/exec/mmakefile.src   |  2 +-
 arch/arm-raspi/exec/platform_init.c | 43 ++++++++++++++++++++++++++++
 3 files changed, 101 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm-raspi/exec/coldreboot.c
 create mode 100644 arch/arm-raspi/exec/platform_init.c

diff --git a/arch/arm-raspi/exec/coldreboot.c b/arch/arm-raspi/exec/coldreboot.c
new file mode 100644
index 0000000000..6a8b903524
--- /dev/null
+++ b/arch/arm-raspi/exec/coldreboot.c
@@ -0,0 +1,57 @@
+/*
+    Copyright © 2013, The AROS Development Team. All rights reserved.
+    $Id$
+
+    Desc: ColdReboot() - Reboot the computer.
+    Lang: english
+*/
+
+#include <exec/types.h>
+#include <exec/execbase.h>
+#include <exec/tasks.h>
+#include <aros/libcall.h>
+
+#include <proto/exec.h>
+
+#include "exec_intern.h"
+#include "exec_util.h"
+
+/*****************************************************************************
+
+    NAME */
+
+	AROS_LH0(void, ColdReboot,
+
+/*  LOCATION */
+	struct ExecBase *, SysBase, 121, Exec)
+
+/*  FUNCTION
+	This function will reboot the computer.
+
+    INPUTS
+	None.
+
+    RESULT
+	This function does not return.
+
+    NOTES
+	It can be quite harmful to call this function. It may be possible that
+	you will lose data from other tasks not having saved, or disk buffers
+	not being flushed. Plus you could annoy the (other) users.
+
+    EXAMPLE
+
+    BUGS
+
+    SEE ALSO
+
+******************************************************************************/
+{
+    AROS_LIBFUNC_INIT
+
+    Exec_DoResetCallbacks((struct IntExecBase *)SysBase, SD_ACTION_WARMREBOOT);
+
+    asm volatile("mov pc,#0;");
+
+    AROS_LIBFUNC_EXIT
+}
diff --git a/arch/arm-raspi/exec/mmakefile.src b/arch/arm-raspi/exec/mmakefile.src
index cf1014ae8a..105133c5ec 100644
--- a/arch/arm-raspi/exec/mmakefile.src
+++ b/arch/arm-raspi/exec/mmakefile.src
@@ -10,7 +10,7 @@ ifneq ($(AROS_TARGET_VARIANT),)
 endif
 
 CFILES          := \
-        superstate userstate
+        platform_init superstate userstate coldreboot
 
 ##exec_init
 
diff --git a/arch/arm-raspi/exec/platform_init.c b/arch/arm-raspi/exec/platform_init.c
new file mode 100644
index 0000000000..62fec7b776
--- /dev/null
+++ b/arch/arm-raspi/exec/platform_init.c
@@ -0,0 +1,43 @@
+/*
+    Copyright © 2013, The AROS Development Team. All rights reserved.
+    $Id$
+*/
+
+#define DEBUG 1
+
+#include <aros/debug.h>
+#include <aros/kernel.h>
+#include <aros/symbolsets.h>
+#include <exec/memory.h>
+#include <exec/tasks.h>
+#include <exec/alerts.h>
+#include <exec/execbase.h>
+#include <asm/io.h>
+#include <proto/exec.h>
+#include <strings.h>
+
+#include <asm/bcm2835.h>
+
+/* Linked from kernel.resource,
+ * need to retrieve in a cleaner fashion .. */
+extern IPTR stack[];
+
+static int PlatformInit(struct ExecBase *SysBase)
+{
+    D(bug("[Exec] PlatformInit()\n"));
+    
+    struct Task *BootTask = SysBase->ThisTask;
+    D(bug("[Exec] PlatformInit: Boot Task @ 0x%p\n", BootTask));
+
+    /* for our sanity we will tell exec about the correct stack for the boot task */
+    BootTask->tc_SPLower = stack;
+    BootTask->tc_SPUpper = stack + STACK_SIZE;
+#if (1)
+    // Temp Hack
+    BootTask->tc_SPReg = BootTask->tc_SPUpper - sizeof(IPTR);
+#endif
+
+    return TRUE;
+}
+
+ADD2INITLIB(PlatformInit, 0)
-- 
2.11.4.GIT