ARM: OMAP2+: separate out OMAP4 restart

Separate out OMAP4 restart and have it similar to other platforms, in
a different file. Main motive is to reuse omap4-common on platforms
other than OMAP4, like AM43x, even if OMAP4 is deselected (otherwise
would have caused build breakage).

Signed-off-by: Afzal Mohammed <afzal@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 27 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/omap4-restart.c b/arch/arm/mach-omap2/omap4-restart.c
new file mode 100644
index 000000000000..f90e02e11898
--- /dev/null
+++ b/arch/arm/mach-omap2/omap4-restart.c
@@ -0,0 +1,27 @@
+/*
+ * omap4-restart.c - Common to OMAP4 and OMAP5
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/types.h>
+#include "prminst44xx.h"
+
+/**
+ * omap44xx_restart - trigger a software restart of the SoC
+ * @mode: the "reboot mode", see arch/arm/kernel/{setup,process}.c
+ * @cmd: passed from the userspace program rebooting the system (if provided)
+ *
+ * Resets the SoC.  For @cmd, see the 'reboot' syscall in
+ * kernel/sys.c.  No return value.
+ */
+void omap44xx_restart(char mode, const char *cmd)
+{
+	/* XXX Should save 'cmd' into scratchpad for use after reboot */
+	omap4_prminst_global_warm_sw_reset(); /* never returns */
+	while (1)
+		;
+}