1 files changed, 73 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/clock2xxx.c b/arch/arm/mach-omap2/clock2xxx.c
new file mode 100644
index 000000000000..80bb0f0e92e6
--- /dev/null
+++ b/arch/arm/mach-omap2/clock2xxx.c
@@ -0,0 +1,73 @@
+/*
+ * clock2xxx.c - OMAP2xxx-specific clock integration code
+ *
+ * Copyright (C) 2005-2008 Texas Instruments, Inc.
+ * Copyright (C) 2004-2010 Nokia Corporation
+ *
+ * Contacts:
+ * Richard Woodruff <r-woodruff2@ti.com>
+ * Paul Walmsley
+ *
+ * Based on earlier work by Tuukka Tikkanen, Tony Lindgren,
+ * Gordon McNutt and RidgeRun, 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.
+ */
+#undef DEBUG
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include <plat/clock.h>
+
+#include "clock.h"
+#include "clock2xxx.h"
+#include "cm.h"
+#include "cm-regbits-24xx.h"
+
+struct clk *vclk, *sclk, *dclk;
+
+/*
+ * Omap24xx specific clock functions
+ */
+
+/*
+ * Set clocks for bypass mode for reboot to work.
+ */
+void omap2xxx_clk_prepare_for_reboot(void)
+{
+        u32 rate;
+
+        if (vclk == NULL || sclk == NULL)
+                return;
+
+        rate = clk_get_rate(sclk);
+        clk_set_rate(vclk, rate);
+}
+
+/*
+ * Switch the MPU rate if specified on cmdline.  We cannot do this
+ * early until cmdline is parsed.  XXX This should be removed from the
+ * clock code and handled by the OPP layer code in the near future.
+ */
+static int __init omap2xxx_clk_arch_init(void)
+{
+        int ret;
+
+        if (!cpu_is_omap24xx())
+                return 0;
+
+        ret = omap2_clk_switch_mpurate_at_boot("virt_prcm_set");
+        if (!ret)
+                omap2_clk_print_new_rates("sys_ck", "dpll_ck", "mpu_ck");
+
+        return ret;
+}
+
+arch_initcall(omap2xxx_clk_arch_init);
+
+