1 files changed, 40 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/prcm.c b/arch/arm/mach-omap2/prcm.c
new file mode 100644
index 000000000000..8893479dc7e0
--- /dev/null
+++ b/arch/arm/mach-omap2/prcm.c
@@ -0,0 +1,40 @@
+/*
+ * linux/arch/arm/mach-omap2/prcm.c
+ *
+ * OMAP 24xx Power Reset and Clock Management (PRCM) functions
+ *
+ * Copyright (C) 2005 Nokia Corporation
+ *
+ * Written by Tony Lindgren <tony.lindgren@nokia.com>
+ *
+ * Some pieces of code Copyright (C) 2005 Texas Instruments, Inc.
+ *
+ * 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/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/clk.h>
+
+#include "prcm-regs.h"
+
+u32 omap_prcm_get_reset_sources(void)
+{
+        return RM_RSTST_WKUP & 0x7f;
+}
+EXPORT_SYMBOL(omap_prcm_get_reset_sources);
+
+/* Resets clock rates and reboots the system. Only called from system.h */
+void omap_prcm_arch_reset(char mode)
+{
+        u32 rate;
+        struct clk *vclk, *sclk;
+
+        vclk = clk_get(NULL, "virt_prcm_set");
+        sclk = clk_get(NULL, "sys_ck");
+        rate = clk_get_rate(sclk);
+        clk_set_rate(vclk, rate);       /* go to bypass for OMAP limitation */
+        RM_RSTCTRL_WKUP |= 2;
+}