1 /* 2 * omap3-restart.c - Code common to all OMAP3xxx machines. 3 * 4 * Copyright (C) 2009, 2012 Texas Instruments 5 * Copyright (C) 2010 Nokia Corporation 6 * Tony Lindgren <tony@atomide.com> 7 * Santosh Shilimkar <santosh.shilimkar@ti.com> 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License version 2 as 11 * published by the Free Software Foundation. 12 */ 13 #include <linux/kernel.h> 14 #include <linux/init.h> 15 #include <linux/reboot.h> 16 17 #include "iomap.h" 18 #include "common.h" 19 #include "control.h" 20 #include "prm3xxx.h" 21 22 /* Global address base setup code */ 23 24 /** 25 * omap3xxx_restart - trigger a software restart of the SoC 26 * @mode: the "reboot mode", see arch/arm/kernel/{setup,process}.c 27 * @cmd: passed from the userspace program rebooting the system (if provided) 28 * 29 * Resets the SoC. For @cmd, see the 'reboot' syscall in 30 * kernel/sys.c. No return value. 31 */ 32 void omap3xxx_restart(enum reboot_mode mode, const char *cmd) 33 { 34 omap3_ctrl_write_boot_mode((cmd ? (u8)*cmd : 0)); 35 omap3xxx_prm_dpll3_reset(); /* never returns */ 36 while (1); 37 } 38