12f334a38SPaul Walmsley /* 22f334a38SPaul Walmsley * omap3-restart.c - Code common to all OMAP3xxx machines. 32f334a38SPaul Walmsley * 42f334a38SPaul Walmsley * Copyright (C) 2009, 2012 Texas Instruments 52f334a38SPaul Walmsley * Copyright (C) 2010 Nokia Corporation 62f334a38SPaul Walmsley * Tony Lindgren <tony@atomide.com> 72f334a38SPaul Walmsley * Santosh Shilimkar <santosh.shilimkar@ti.com> 82f334a38SPaul Walmsley * 92f334a38SPaul Walmsley * This program is free software; you can redistribute it and/or modify 102f334a38SPaul Walmsley * it under the terms of the GNU General Public License version 2 as 112f334a38SPaul Walmsley * published by the Free Software Foundation. 122f334a38SPaul Walmsley */ 132f334a38SPaul Walmsley #include <linux/kernel.h> 142f334a38SPaul Walmsley #include <linux/init.h> 15*7b6d864bSRobin Holt #include <linux/reboot.h> 162f334a38SPaul Walmsley 172f334a38SPaul Walmsley #include "iomap.h" 182f334a38SPaul Walmsley #include "common.h" 192f334a38SPaul Walmsley #include "control.h" 202f334a38SPaul Walmsley #include "prm3xxx.h" 212f334a38SPaul Walmsley 222f334a38SPaul Walmsley /* Global address base setup code */ 232f334a38SPaul Walmsley 242f334a38SPaul Walmsley /** 252f334a38SPaul Walmsley * omap3xxx_restart - trigger a software restart of the SoC 262f334a38SPaul Walmsley * @mode: the "reboot mode", see arch/arm/kernel/{setup,process}.c 272f334a38SPaul Walmsley * @cmd: passed from the userspace program rebooting the system (if provided) 282f334a38SPaul Walmsley * 292f334a38SPaul Walmsley * Resets the SoC. For @cmd, see the 'reboot' syscall in 302f334a38SPaul Walmsley * kernel/sys.c. No return value. 312f334a38SPaul Walmsley */ 32*7b6d864bSRobin Holt void omap3xxx_restart(enum reboot_mode mode, const char *cmd) 332f334a38SPaul Walmsley { 342f334a38SPaul Walmsley omap3_ctrl_write_boot_mode((cmd ? (u8)*cmd : 0)); 352f334a38SPaul Walmsley omap3xxx_prm_dpll3_reset(); /* never returns */ 362f334a38SPaul Walmsley while (1); 372f334a38SPaul Walmsley } 38