1 /* linux/arch/arm/plat-s3c24xx/pm-simtec.c
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
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License version 2 as
12  * published by the Free Software Foundation.
13 */
14 
15 #include <linux/kernel.h>
16 #include <linux/types.h>
17 #include <linux/interrupt.h>
18 #include <linux/list.h>
19 #include <linux/timer.h>
20 #include <linux/init.h>
21 #include <linux/device.h>
22 #include <linux/io.h>
23 
24 #include <asm/mach/arch.h>
25 #include <asm/mach/map.h>
26 
27 #include <mach/hardware.h>
28 
29 #include <mach/map.h>
30 #include <mach/regs-gpio.h>
31 #include <mach/regs-mem.h>
32 
33 #include <asm/mach-types.h>
34 
35 #include <plat/pm.h>
36 
37 #define COPYRIGHT ", Copyright 2005 Simtec Electronics"
38 
39 /* pm_simtec_init
40  *
41  * enable the power management functions
42 */
43 
pm_simtec_init(void)44 static __init int pm_simtec_init(void)
45 {
46 	unsigned long gstatus4;
47 
48 	/* check which machine we are running on */
49 
50 	if (!machine_is_bast() && !machine_is_vr1000() &&
51 	    !machine_is_anubis() && !machine_is_osiris() &&
52 	    !machine_is_aml_m5900())
53 		return 0;
54 
55 	printk(KERN_INFO "Simtec Board Power Management" COPYRIGHT "\n");
56 
57 	gstatus4  = (__raw_readl(S3C2410_BANKCON7) & 0x3) << 30;
58 	gstatus4 |= (__raw_readl(S3C2410_BANKCON6) & 0x3) << 28;
59 	gstatus4 |= (__raw_readl(S3C2410_BANKSIZE) & S3C2410_BANKSIZE_MASK);
60 
61 	__raw_writel(gstatus4, S3C2410_GSTATUS4);
62 
63 	return s3c_pm_init();
64 }
65 
66 arch_initcall(pm_simtec_init);
67