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Krzysztof Kozlowski84b21702017-12-25 20:54:32 +01001// SPDX-License-Identifier: GPL-2.0
2//
3// Copyright 2004 Simtec Electronics
4// Ben Dooks <ben@simtec.co.uk>
5//
6// http://armlinux.simtec.co.uk/
7//
8// Power Management helpers for Simtec S3C24XX implementations
Ben Dooksf705b1a2005-06-29 11:09:15 +01009
10#include <linux/kernel.h>
11#include <linux/types.h>
12#include <linux/interrupt.h>
13#include <linux/list.h>
14#include <linux/timer.h>
15#include <linux/init.h>
16#include <linux/device.h>
Russell Kingfced80c2008-09-06 12:10:45 +010017#include <linux/io.h>
Ben Dooksf705b1a2005-06-29 11:09:15 +010018
19#include <asm/mach/arch.h>
20#include <asm/mach/map.h>
21
Russell Kinga09e64f2008-08-05 16:14:15 +010022#include <mach/hardware.h>
Ben Dooksf705b1a2005-06-29 11:09:15 +010023
Russell Kinga09e64f2008-08-05 16:14:15 +010024#include <mach/map.h>
25#include <mach/regs-gpio.h>
Ben Dooksf705b1a2005-06-29 11:09:15 +010026
27#include <asm/mach-types.h>
28
Ben Dooksa2b7ba92008-10-07 22:26:09 +010029#include <plat/pm.h>
Ben Dooksf705b1a2005-06-29 11:09:15 +010030
Kukjin Kim37c3adc2013-02-03 17:00:11 -080031#include "regs-mem.h"
32
Ben Dooks50f430e2009-11-13 22:54:12 +000033#define COPYRIGHT ", Copyright 2005 Simtec Electronics"
Ben Dooksf705b1a2005-06-29 11:09:15 +010034
35/* pm_simtec_init
36 *
37 * enable the power management functions
38*/
39
40static __init int pm_simtec_init(void)
41{
42 unsigned long gstatus4;
43
44 /* check which machine we are running on */
45
Ben Dooksc9b949a2006-06-24 21:22:35 +010046 if (!machine_is_bast() && !machine_is_vr1000() &&
David Anders26f90812006-09-26 17:46:00 +010047 !machine_is_anubis() && !machine_is_osiris() &&
48 !machine_is_aml_m5900())
Ben Dooksf705b1a2005-06-29 11:09:15 +010049 return 0;
50
Masanari Iida6eb84bd2012-02-12 22:58:46 +090051 printk(KERN_INFO "Simtec Board Power Management" COPYRIGHT "\n");
Ben Dooksf705b1a2005-06-29 11:09:15 +010052
53 gstatus4 = (__raw_readl(S3C2410_BANKCON7) & 0x3) << 30;
54 gstatus4 |= (__raw_readl(S3C2410_BANKCON6) & 0x3) << 28;
55 gstatus4 |= (__raw_readl(S3C2410_BANKSIZE) & S3C2410_BANKSIZE_MASK);
56
57 __raw_writel(gstatus4, S3C2410_GSTATUS4);
58
Ben Dooks4e59c252008-12-12 00:24:18 +000059 return s3c_pm_init();
Ben Dooksf705b1a2005-06-29 11:09:15 +010060}
61
62arch_initcall(pm_simtec_init);