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authorKumar Gala <galak@kernel.crashing.org>2007-10-04 02:04:57 -0400
committerKumar Gala <galak@kernel.crashing.org>2007-10-08 09:38:47 -0400
commite1c1575f831ab2165732037e6d664010a0149730 (patch)
treeecfc90b06eb4b7402a3334ebe6b8287e73abc671 /arch/powerpc/platforms/85xx/misc.c
parentc9438affcb7ac0dda4c6c6961637fb272f7c32d4 (diff)
[POWERPC] 85xx/86xx: refactor RSTCR reset code
On the majority of 85xx & 86xx we have a register that's ability to assert HRESET_REQ to reset the board. We refactored that code so it can be shared between both platforms into fsl_soc.c and removed all the duplication in each platform directory. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms/85xx/misc.c')
-rw-r--r--arch/powerpc/platforms/85xx/misc.c55
1 files changed, 0 insertions, 55 deletions
diff --git a/arch/powerpc/platforms/85xx/misc.c b/arch/powerpc/platforms/85xx/misc.c
deleted file mode 100644
index 4fe376e9c3b6..000000000000
--- a/arch/powerpc/platforms/85xx/misc.c
+++ /dev/null
@@ -1,55 +0,0 @@
1/*
2 * MPC85xx generic code.
3 *
4 * Maintained by Kumar Gala (see MAINTAINERS for contact information)
5 *
6 * Copyright 2005 Freescale Semiconductor Inc.
7 *
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.
12 */
13#include <linux/irq.h>
14#include <linux/module.h>
15#include <asm/irq.h>
16#include <asm/io.h>
17#include <asm/prom.h>
18#include <sysdev/fsl_soc.h>
19
20static __be32 __iomem *rstcr;
21
22extern void abort(void);
23
24static int __init mpc85xx_rstcr(void)
25{
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);
30 if (prop) {
31 /* map reset control register
32 * 0xE00B0 is offset of reset control register
33 */
34 rstcr = ioremap(get_immrbase() + *prop + 0xB0, 0xff);
35 if (!rstcr)
36 printk (KERN_EMERG "Error: reset control "
37 "register not mapped!\n");
38 }
39 } else
40 printk (KERN_INFO "rstcr compatible register does not exist!\n");
41 if (np)
42 of_node_put(np);
43 return 0;
44}
45
46arch_initcall(mpc85xx_rstcr);
47
48void mpc85xx_restart(char *cmd)
49{
50 local_irq_disable();
51 if (rstcr)
52 /* set reset control register */
53 out_be32(rstcr, 0x2); /* HRESET_REQ */
54 abort();
55}