summaryrefslogtreecommitdiff
path: root/arch/arm/mach-s3c24xx/simtec-pm.c
blob: c19074d81389dae53d2a5788ecc9d30542a79822 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
// SPDX-License-Identifier: GPL-2.0
//
// Copyright 2004 Simtec Electronics
//	Ben Dooks <ben@simtec.co.uk>
//
// http://armlinux.simtec.co.uk/
//
// Power Management helpers for Simtec S3C24XX implementations

#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/timer.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/io.h>

#include <asm/mach/arch.h>
#include <asm/mach/map.h>

#include <mach/hardware.h>

#include <mach/map.h>
#include <mach/regs-gpio.h>

#include <asm/mach-types.h>

#include <plat/pm.h>

#include "regs-mem.h"

#define COPYRIGHT ", Copyright 2005 Simtec Electronics"

/* pm_simtec_init
 *
 * enable the power management functions
*/

static __init int pm_simtec_init(void)
{
	unsigned long gstatus4;

	/* check which machine we are running on */

	if (!machine_is_bast() && !machine_is_vr1000() &&
	    !machine_is_anubis() && !machine_is_osiris() &&
	    !machine_is_aml_m5900())
		return 0;

	printk(KERN_INFO "Simtec Board Power Management" COPYRIGHT "\n");

	gstatus4  = (__raw_readl(S3C2410_BANKCON7) & 0x3) << 30;
	gstatus4 |= (__raw_readl(S3C2410_BANKCON6) & 0x3) << 28;
	gstatus4 |= (__raw_readl(S3C2410_BANKSIZE) & S3C2410_BANKSIZE_MASK);

	__raw_writel(gstatus4, S3C2410_GSTATUS4);

	return s3c_pm_init();
}

arch_initcall(pm_simtec_init);