2 * linux/arch/arm/mach-omap2/prcm.c
4 * OMAP 24xx Power Reset and Clock Management (PRCM) functions
6 * Copyright (C) 2005 Nokia Corporation
8 * Written by Tony Lindgren <tony.lindgren@nokia.com>
10 * Some pieces of code Copyright (C) 2005 Texas Instruments, Inc.
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License version 2 as
14 * published by the Free Software Foundation.
16 #include <linux/module.h>
17 #include <linux/init.h>
18 #include <linux/clk.h>
23 #include "prm-regbits-24xx.h"
25 extern void omap2_clk_prepare_for_reboot(void);
27 u32 omap_prcm_get_reset_sources(void)
29 return prm_read_mod_reg(WKUP_MOD, RM_RSTST) & 0x7f;
31 EXPORT_SYMBOL(omap_prcm_get_reset_sources);
33 /* Resets clock rates and reboots the system. Only called from system.h */
34 void omap_prcm_arch_reset(char mode)
37 omap2_clk_prepare_for_reboot();
39 if (cpu_is_omap24xx()) {
40 wkup = prm_read_mod_reg(WKUP_MOD, RM_RSTCTRL) | OMAP_RST_DPLL3;
41 prm_write_mod_reg(wkup, WKUP_MOD, RM_RSTCTRL);