2 * MPC85xx generic code.
4 * Maintained by Kumar Gala (see MAINTAINERS for contact information)
6 * Copyright 2005 Freescale Semiconductor Inc.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
13 #include <linux/irq.h>
14 #include <linux/module.h>
18 #include <sysdev/fsl_soc.h>
20 static __be32 __iomem *rstcr;
22 extern void abort(void);
24 static int __init mpc85xx_rstcr(void)
26 struct device_node *np;
27 np = of_find_node_by_name(NULL, "global-utilities");
28 if ((np && of_get_property(np, "fsl,has-rstcr", NULL))) {
29 const u32 *prop = of_get_property(np, "reg", NULL);
31 /* map reset control register
32 * 0xE00B0 is offset of reset control register
34 rstcr = ioremap(get_immrbase() + *prop + 0xB0, 0xff);
36 printk (KERN_EMERG "Error: reset control "
37 "register not mapped!\n");
40 printk (KERN_INFO "rstcr compatible register does not exist!\n");
46 arch_initcall(mpc85xx_rstcr);
48 void mpc85xx_restart(char *cmd)
52 /* set reset control register */
53 out_be32(rstcr, 0x2); /* HRESET_REQ */