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>
21 #include <asm/arch/prcm.h>
25 #include "prm-regbits-24xx.h"
27 u32 omap_prcm_get_reset_sources(void)
29 /* XXX This presumably needs modification for 34XX */
30 return prm_read_mod_reg(WKUP_MOD, RM_RSTST) & 0x7f;
32 EXPORT_SYMBOL(omap_prcm_get_reset_sources);
34 /* Resets clock rates and reboots the system. Only called from system.h */
35 void omap_prcm_arch_reset(char mode)
38 omap2_clk_prepare_for_reboot();
40 if (cpu_is_omap24xx())
42 else if (cpu_is_omap34xx())
43 prcm_offs = OMAP3430_GR_MOD;
47 prm_set_mod_reg_bits(OMAP_RST_DPLL3, prcm_offs, RM_RSTCTRL);