diff options
Diffstat (limited to 'arch/arm/mach-s3c2410/s3c2410-pm.c')
-rw-r--r-- | arch/arm/mach-s3c2410/s3c2410-pm.c | 156 |
1 files changed, 0 insertions, 156 deletions
diff --git a/arch/arm/mach-s3c2410/s3c2410-pm.c b/arch/arm/mach-s3c2410/s3c2410-pm.c deleted file mode 100644 index 8bb6e5e21f5..00000000000 --- a/arch/arm/mach-s3c2410/s3c2410-pm.c +++ /dev/null | |||
@@ -1,156 +0,0 @@ | |||
1 | /* linux/arch/arm/mach-s3c2410/s3c2410-pm.c | ||
2 | * | ||
3 | * Copyright (c) 2006 Simtec Electronics | ||
4 | * Ben Dooks <ben@simtec.co.uk> | ||
5 | * | ||
6 | * S3C2410 (and compatible) Power Manager (Suspend-To-RAM) support | ||
7 | * | ||
8 | * This program is free software; you can redistribute it and/or modify | ||
9 | * it under the terms of the GNU General Public License as published by | ||
10 | * the Free Software Foundation; either version 2 of the License, or | ||
11 | * (at your option) any later version. | ||
12 | * | ||
13 | * This program is distributed in the hope that it will be useful, | ||
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
16 | * GNU General Public License for more details. | ||
17 | * | ||
18 | * You should have received a copy of the GNU General Public License | ||
19 | * along with this program; if not, write to the Free Software | ||
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
21 | */ | ||
22 | |||
23 | #include <linux/init.h> | ||
24 | #include <linux/suspend.h> | ||
25 | #include <linux/errno.h> | ||
26 | #include <linux/time.h> | ||
27 | #include <linux/sysdev.h> | ||
28 | |||
29 | #include <asm/hardware.h> | ||
30 | #include <asm/io.h> | ||
31 | |||
32 | #include <asm/mach-types.h> | ||
33 | |||
34 | #include <asm/arch/regs-gpio.h> | ||
35 | #include <asm/arch/h1940.h> | ||
36 | |||
37 | #include "cpu.h" | ||
38 | #include "pm.h" | ||
39 | |||
40 | #ifdef CONFIG_S3C2410_PM_DEBUG | ||
41 | extern void pm_dbg(const char *fmt, ...); | ||
42 | #define DBG(fmt...) pm_dbg(fmt) | ||
43 | #else | ||
44 | #define DBG(fmt...) printk(KERN_DEBUG fmt) | ||
45 | #endif | ||
46 | |||
47 | static void s3c2410_pm_prepare(void) | ||
48 | { | ||
49 | /* ensure at least GSTATUS3 has the resume address */ | ||
50 | |||
51 | __raw_writel(virt_to_phys(s3c2410_cpu_resume), S3C2410_GSTATUS3); | ||
52 | |||
53 | DBG("GSTATUS3 0x%08x\n", __raw_readl(S3C2410_GSTATUS3)); | ||
54 | DBG("GSTATUS4 0x%08x\n", __raw_readl(S3C2410_GSTATUS4)); | ||
55 | |||
56 | if (machine_is_h1940()) { | ||
57 | void *base = phys_to_virt(H1940_SUSPEND_CHECK); | ||
58 | unsigned long ptr; | ||
59 | unsigned long calc = 0; | ||
60 | |||
61 | /* generate check for the bootloader to check on resume */ | ||
62 | |||
63 | for (ptr = 0; ptr < 0x40000; ptr += 0x400) | ||
64 | calc += __raw_readl(base+ptr); | ||
65 | |||
66 | __raw_writel(calc, phys_to_virt(H1940_SUSPEND_CHECKSUM)); | ||
67 | } | ||
68 | |||
69 | /* the RX3715 uses similar code and the same H1940 and the | ||
70 | * same offsets for resume and checksum pointers */ | ||
71 | |||
72 | if (machine_is_rx3715()) { | ||
73 | void *base = phys_to_virt(H1940_SUSPEND_CHECK); | ||
74 | unsigned long ptr; | ||
75 | unsigned long calc = 0; | ||
76 | |||
77 | /* generate check for the bootloader to check on resume */ | ||
78 | |||
79 | for (ptr = 0; ptr < 0x40000; ptr += 0x4) | ||
80 | calc += __raw_readl(base+ptr); | ||
81 | |||
82 | __raw_writel(calc, phys_to_virt(H1940_SUSPEND_CHECKSUM)); | ||
83 | } | ||
84 | |||
85 | if ( machine_is_aml_m5900() ) | ||
86 | s3c2410_gpio_setpin(S3C2410_GPF2, 1); | ||
87 | |||
88 | } | ||
89 | |||
90 | static int s3c2410_pm_resume(struct sys_device *dev) | ||
91 | { | ||
92 | unsigned long tmp; | ||
93 | |||
94 | /* unset the return-from-sleep flag, to ensure reset */ | ||
95 | |||
96 | tmp = __raw_readl(S3C2410_GSTATUS2); | ||
97 | tmp &= S3C2410_GSTATUS2_OFFRESET; | ||
98 | __raw_writel(tmp, S3C2410_GSTATUS2); | ||
99 | |||
100 | if ( machine_is_aml_m5900() ) | ||
101 | s3c2410_gpio_setpin(S3C2410_GPF2, 0); | ||
102 | |||
103 | return 0; | ||
104 | } | ||
105 | |||
106 | static int s3c2410_pm_add(struct sys_device *dev) | ||
107 | { | ||
108 | pm_cpu_prep = s3c2410_pm_prepare; | ||
109 | pm_cpu_sleep = s3c2410_cpu_suspend; | ||
110 | |||
111 | return 0; | ||
112 | } | ||
113 | |||
114 | #if defined(CONFIG_CPU_S3C2410) | ||
115 | static struct sysdev_driver s3c2410_pm_driver = { | ||
116 | .add = s3c2410_pm_add, | ||
117 | .resume = s3c2410_pm_resume, | ||
118 | }; | ||
119 | |||
120 | /* register ourselves */ | ||
121 | |||
122 | static int __init s3c2410_pm_drvinit(void) | ||
123 | { | ||
124 | return sysdev_driver_register(&s3c2410_sysclass, &s3c2410_pm_driver); | ||
125 | } | ||
126 | |||
127 | arch_initcall(s3c2410_pm_drvinit); | ||
128 | #endif | ||
129 | |||
130 | #if defined(CONFIG_CPU_S3C2440) | ||
131 | static struct sysdev_driver s3c2440_pm_driver = { | ||
132 | .add = s3c2410_pm_add, | ||
133 | .resume = s3c2410_pm_resume, | ||
134 | }; | ||
135 | |||
136 | static int __init s3c2440_pm_drvinit(void) | ||
137 | { | ||
138 | return sysdev_driver_register(&s3c2440_sysclass, &s3c2440_pm_driver); | ||
139 | } | ||
140 | |||
141 | arch_initcall(s3c2440_pm_drvinit); | ||
142 | #endif | ||
143 | |||
144 | #if defined(CONFIG_CPU_S3C2442) | ||
145 | static struct sysdev_driver s3c2442_pm_driver = { | ||
146 | .add = s3c2410_pm_add, | ||
147 | .resume = s3c2410_pm_resume, | ||
148 | }; | ||
149 | |||
150 | static int __init s3c2442_pm_drvinit(void) | ||
151 | { | ||
152 | return sysdev_driver_register(&s3c2442_sysclass, &s3c2442_pm_driver); | ||
153 | } | ||
154 | |||
155 | arch_initcall(s3c2442_pm_drvinit); | ||
156 | #endif | ||