[ARM] 3426/1: ARM: OMAP: 1/8 Update clock framework
Patch from Tony Lindgren
Update OMAP clock framework from linux-omap tree.
The highlights of the patch are:
- Add support for omap730 clocks by Andrzej Zaborowski
- Fix compile warnings by Dirk Behme
- Add support for using dev id by Tony Lindgren and Komal Shah
- Move memory timings and PRCM into separate files by Tony Lindgren
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-omap2/prcm.c b/arch/arm/mach-omap2/prcm.c
new file mode 100644
index 0000000..8893479
--- /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;
+}