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-rw-r--r--arch/arm/plat-s3c24xx/Makefile1
-rw-r--r--arch/arm/plat-s3c24xx/include/plat/irq.h8
-rw-r--r--arch/arm/plat-s3c24xx/irq-pm.c116
-rw-r--r--arch/arm/plat-s3c24xx/irq.c118
4 files changed, 125 insertions, 118 deletions
diff --git a/arch/arm/plat-s3c24xx/Makefile b/arch/arm/plat-s3c24xx/Makefile
index 1e0767b266b8..636cb12711df 100644
--- a/arch/arm/plat-s3c24xx/Makefile
+++ b/arch/arm/plat-s3c24xx/Makefile
@@ -27,6 +27,7 @@ obj-$(CONFIG_CPU_S3C244X) += s3c244x-irq.o
27obj-$(CONFIG_CPU_S3C244X) += s3c244x-clock.o 27obj-$(CONFIG_CPU_S3C244X) += s3c244x-clock.o
28obj-$(CONFIG_PM_SIMTEC) += pm-simtec.o 28obj-$(CONFIG_PM_SIMTEC) += pm-simtec.o
29obj-$(CONFIG_PM) += pm.o 29obj-$(CONFIG_PM) += pm.o
30obj-$(CONFIG_PM) += irq-pm.o
30obj-$(CONFIG_PM) += sleep.o 31obj-$(CONFIG_PM) += sleep.o
31obj-$(CONFIG_HAVE_PWM) += pwm.o 32obj-$(CONFIG_HAVE_PWM) += pwm.o
32obj-$(CONFIG_S3C2410_CLOCK) += s3c2410-clock.o 33obj-$(CONFIG_S3C2410_CLOCK) += s3c2410-clock.o
diff --git a/arch/arm/plat-s3c24xx/include/plat/irq.h b/arch/arm/plat-s3c24xx/include/plat/irq.h
index 45746a995343..97b6884ea0dc 100644
--- a/arch/arm/plat-s3c24xx/include/plat/irq.h
+++ b/arch/arm/plat-s3c24xx/include/plat/irq.h
@@ -10,6 +10,12 @@
10 * published by the Free Software Foundation. 10 * published by the Free Software Foundation.
11*/ 11*/
12 12
13#include <linux/io.h>
14
15#include <mach/hardware.h>
16#include <mach/regs-irq.h>
17#include <mach/regs-gpio.h>
18
13#define irqdbf(x...) 19#define irqdbf(x...)
14#define irqdbf2(x...) 20#define irqdbf2(x...)
15 21
@@ -102,7 +108,9 @@ s3c_irqsub_ack(unsigned int irqno, unsigned int parentmask, unsigned int group)
102 108
103#ifdef CONFIG_PM 109#ifdef CONFIG_PM
104extern int s3c_irq_wake(unsigned int irqno, unsigned int state); 110extern int s3c_irq_wake(unsigned int irqno, unsigned int state);
111extern int s3c_irqext_wake(unsigned int irqno, unsigned int state);
105#else 112#else
113#define s3c_irqext_wake NULL
106#define s3c_irq_wake NULL 114#define s3c_irq_wake NULL
107#endif 115#endif
108 116
diff --git a/arch/arm/plat-s3c24xx/irq-pm.c b/arch/arm/plat-s3c24xx/irq-pm.c
new file mode 100644
index 000000000000..86c68804f098
--- /dev/null
+++ b/arch/arm/plat-s3c24xx/irq-pm.c
@@ -0,0 +1,116 @@
1/* linux/arch/arm/plat-s3c24xx/irq-om.c
2 *
3 * Copyright (c) 2003,2004 Simtec Electronics
4 * Ben Dooks <ben@simtec.co.uk>
5 * http://armlinux.simtec.co.uk/
6 *
7 * S3C24XX - IRQ PM code
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
14#include <linux/init.h>
15#include <linux/module.h>
16#include <linux/interrupt.h>
17#include <linux/sysdev.h>
18
19#include <plat/cpu.h>
20#include <plat/pm.h>
21#include <plat/irq.h>
22
23/* state for IRQs over sleep */
24
25/* default is to allow for EINT0..EINT15, and IRQ_RTC as wakeup sources
26 *
27 * set bit to 1 in allow bitfield to enable the wakeup settings on it
28*/
29
30unsigned long s3c_irqwake_intallow = 1L << (IRQ_RTC - IRQ_EINT0) | 0xfL;
31unsigned long s3c_irqwake_intmask = 0xffffffffL;
32unsigned long s3c_irqwake_eintallow = 0x0000fff0L;
33unsigned long s3c_irqwake_eintmask = 0xffffffffL;
34
35int
36s3c_irq_wake(unsigned int irqno, unsigned int state)
37{
38 unsigned long irqbit = 1 << (irqno - IRQ_EINT0);
39
40 if (!(s3c_irqwake_intallow & irqbit))
41 return -ENOENT;
42
43 printk(KERN_INFO "wake %s for irq %d\n",
44 state ? "enabled" : "disabled", irqno);
45
46 if (!state)
47 s3c_irqwake_intmask |= irqbit;
48 else
49 s3c_irqwake_intmask &= ~irqbit;
50
51 return 0;
52}
53
54int s3c_irqext_wake(unsigned int irqno, unsigned int state)
55{
56 unsigned long bit = 1L << (irqno - EXTINT_OFF);
57
58 if (!(s3c_irqwake_eintallow & bit))
59 return -ENOENT;
60
61 printk(KERN_INFO "wake %s for irq %d\n",
62 state ? "enabled" : "disabled", irqno);
63
64 if (!state)
65 s3c_irqwake_eintmask |= bit;
66 else
67 s3c_irqwake_eintmask &= ~bit;
68
69 return 0;
70}
71
72static struct sleep_save irq_save[] = {
73 SAVE_ITEM(S3C2410_INTMSK),
74 SAVE_ITEM(S3C2410_INTSUBMSK),
75};
76
77/* the extint values move between the s3c2410/s3c2440 and the s3c2412
78 * so we use an array to hold them, and to calculate the address of
79 * the register at run-time
80*/
81
82static unsigned long save_extint[3];
83static unsigned long save_eintflt[4];
84static unsigned long save_eintmask;
85
86int s3c24xx_irq_suspend(struct sys_device *dev, pm_message_t state)
87{
88 unsigned int i;
89
90 for (i = 0; i < ARRAY_SIZE(save_extint); i++)
91 save_extint[i] = __raw_readl(S3C24XX_EXTINT0 + (i*4));
92
93 for (i = 0; i < ARRAY_SIZE(save_eintflt); i++)
94 save_eintflt[i] = __raw_readl(S3C24XX_EINFLT0 + (i*4));
95
96 s3c_pm_do_save(irq_save, ARRAY_SIZE(irq_save));
97 save_eintmask = __raw_readl(S3C24XX_EINTMASK);
98
99 return 0;
100}
101
102int s3c24xx_irq_resume(struct sys_device *dev)
103{
104 unsigned int i;
105
106 for (i = 0; i < ARRAY_SIZE(save_extint); i++)
107 __raw_writel(save_extint[i], S3C24XX_EXTINT0 + (i*4));
108
109 for (i = 0; i < ARRAY_SIZE(save_eintflt); i++)
110 __raw_writel(save_eintflt[i], S3C24XX_EINFLT0 + (i*4));
111
112 s3c_pm_do_restore(irq_save, ARRAY_SIZE(irq_save));
113 __raw_writel(save_eintmask, S3C24XX_EINTMASK);
114
115 return 0;
116}
diff --git a/arch/arm/plat-s3c24xx/irq.c b/arch/arm/plat-s3c24xx/irq.c
index 2fa8c9f4b354..33fde662ce6d 100644
--- a/arch/arm/plat-s3c24xx/irq.c
+++ b/arch/arm/plat-s3c24xx/irq.c
@@ -55,81 +55,16 @@
55#include <linux/interrupt.h> 55#include <linux/interrupt.h>
56#include <linux/ioport.h> 56#include <linux/ioport.h>
57#include <linux/sysdev.h> 57#include <linux/sysdev.h>
58#include <linux/io.h>
59 58
60#include <mach/hardware.h>
61#include <asm/irq.h> 59#include <asm/irq.h>
62
63#include <asm/mach/irq.h> 60#include <asm/mach/irq.h>
64 61
65#include <plat/regs-irqtype.h> 62#include <plat/regs-irqtype.h>
66#include <mach/regs-irq.h>
67#include <mach/regs-gpio.h>
68 63
69#include <plat/cpu.h> 64#include <plat/cpu.h>
70#include <plat/pm.h> 65#include <plat/pm.h>
71#include <plat/irq.h> 66#include <plat/irq.h>
72 67
73/* wakeup irq control */
74
75#ifdef CONFIG_PM
76
77/* state for IRQs over sleep */
78
79/* default is to allow for EINT0..EINT15, and IRQ_RTC as wakeup sources
80 *
81 * set bit to 1 in allow bitfield to enable the wakeup settings on it
82*/
83
84unsigned long s3c_irqwake_intallow = 1L << (IRQ_RTC - IRQ_EINT0) | 0xfL;
85unsigned long s3c_irqwake_intmask = 0xffffffffL;
86unsigned long s3c_irqwake_eintallow = 0x0000fff0L;
87unsigned long s3c_irqwake_eintmask = 0xffffffffL;
88
89int
90s3c_irq_wake(unsigned int irqno, unsigned int state)
91{
92 unsigned long irqbit = 1 << (irqno - IRQ_EINT0);
93
94 if (!(s3c_irqwake_intallow & irqbit))
95 return -ENOENT;
96
97 printk(KERN_INFO "wake %s for irq %d\n",
98 state ? "enabled" : "disabled", irqno);
99
100 if (!state)
101 s3c_irqwake_intmask |= irqbit;
102 else
103 s3c_irqwake_intmask &= ~irqbit;
104
105 return 0;
106}
107
108static int
109s3c_irqext_wake(unsigned int irqno, unsigned int state)
110{
111 unsigned long bit = 1L << (irqno - EXTINT_OFF);
112
113 if (!(s3c_irqwake_eintallow & bit))
114 return -ENOENT;
115
116 printk(KERN_INFO "wake %s for irq %d\n",
117 state ? "enabled" : "disabled", irqno);
118
119 if (!state)
120 s3c_irqwake_eintmask |= bit;
121 else
122 s3c_irqwake_eintmask &= ~bit;
123
124 return 0;
125}
126
127#else
128#define s3c_irqext_wake NULL
129#define s3c_irq_wake NULL
130#endif
131
132
133static void 68static void
134s3c_irq_mask(unsigned int irqno) 69s3c_irq_mask(unsigned int irqno)
135{ 70{
@@ -590,59 +525,6 @@ s3c_irq_demux_extint4t7(unsigned int irq,
590 } 525 }
591} 526}
592 527
593#ifdef CONFIG_PM
594
595static struct sleep_save irq_save[] = {
596 SAVE_ITEM(S3C2410_INTMSK),
597 SAVE_ITEM(S3C2410_INTSUBMSK),
598};
599
600/* the extint values move between the s3c2410/s3c2440 and the s3c2412
601 * so we use an array to hold them, and to calculate the address of
602 * the register at run-time
603*/
604
605static unsigned long save_extint[3];
606static unsigned long save_eintflt[4];
607static unsigned long save_eintmask;
608
609int s3c24xx_irq_suspend(struct sys_device *dev, pm_message_t state)
610{
611 unsigned int i;
612
613 for (i = 0; i < ARRAY_SIZE(save_extint); i++)
614 save_extint[i] = __raw_readl(S3C24XX_EXTINT0 + (i*4));
615
616 for (i = 0; i < ARRAY_SIZE(save_eintflt); i++)
617 save_eintflt[i] = __raw_readl(S3C24XX_EINFLT0 + (i*4));
618
619 s3c_pm_do_save(irq_save, ARRAY_SIZE(irq_save));
620 save_eintmask = __raw_readl(S3C24XX_EINTMASK);
621
622 return 0;
623}
624
625int s3c24xx_irq_resume(struct sys_device *dev)
626{
627 unsigned int i;
628
629 for (i = 0; i < ARRAY_SIZE(save_extint); i++)
630 __raw_writel(save_extint[i], S3C24XX_EXTINT0 + (i*4));
631
632 for (i = 0; i < ARRAY_SIZE(save_eintflt); i++)
633 __raw_writel(save_eintflt[i], S3C24XX_EINFLT0 + (i*4));
634
635 s3c_pm_do_restore(irq_save, ARRAY_SIZE(irq_save));
636 __raw_writel(save_eintmask, S3C24XX_EINTMASK);
637
638 return 0;
639}
640
641#else
642#define s3c24xx_irq_suspend NULL
643#define s3c24xx_irq_resume NULL
644#endif
645
646/* s3c24xx_init_irq 528/* s3c24xx_init_irq
647 * 529 *
648 * Initialise S3C2410 IRQ system 530 * Initialise S3C2410 IRQ system
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-31 01:40:34 -0500