diff options
author | Ben Dooks <ben-linux@fluff.org> | 2007-02-11 12:31:01 -0500 |
---|---|---|
committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2007-02-11 12:36:09 -0500 |
commit | a21765a70ec06be175d3997320a83fa66fcc8955 (patch) | |
tree | 24bdbf437a9bd5b7c1af05898f5aa25dccf67fe9 /arch/arm/mach-s3c2412/irq.c | |
parent | d19494b187b20e363f9b434b9ceab4159ac88324 (diff) |
[ARM] 4157/2: S3C24XX: move arch/arch/mach-s3c2410 into cpu components
The following patch and script moves the arch/arm/mach-s3c2410
directory into arch/arm/plat-s3c24xx for the generic core code
and inti arch/arm/mach-s3c{cpu} for the cpu/machine support files
Include directory include/asm-arm/plat-s3c24xx is added for the
core include files.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-s3c2412/irq.c')
-rw-r--r-- | arch/arm/mach-s3c2412/irq.c | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c2412/irq.c b/arch/arm/mach-s3c2412/irq.c new file mode 100644 index 000000000000..e89dbdcb1b7b --- /dev/null +++ b/arch/arm/mach-s3c2412/irq.c | |||
@@ -0,0 +1,133 @@ | |||
1 | /* linux/arch/arm/mach-s3c2412/irq.c | ||
2 | * | ||
3 | * Copyright (c) 2006 Simtec Electronics | ||
4 | * Ben Dooks <ben@simtec.co.uk> | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License as published by | ||
8 | * the Free Software Foundation; either version 2 of the License, or | ||
9 | * (at your option) any later version. | ||
10 | * | ||
11 | * This program is distributed in the hope that it will be useful, | ||
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
14 | * GNU General Public License for more details. | ||
15 | * | ||
16 | * You should have received a copy of the GNU General Public License | ||
17 | * along with this program; if not, write to the Free Software | ||
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
19 | * | ||
20 | */ | ||
21 | |||
22 | #include <linux/init.h> | ||
23 | #include <linux/module.h> | ||
24 | #include <linux/interrupt.h> | ||
25 | #include <linux/ioport.h> | ||
26 | #include <linux/ptrace.h> | ||
27 | #include <linux/sysdev.h> | ||
28 | |||
29 | #include <asm/hardware.h> | ||
30 | #include <asm/irq.h> | ||
31 | #include <asm/io.h> | ||
32 | |||
33 | #include <asm/mach/irq.h> | ||
34 | |||
35 | #include <asm/arch/regs-irq.h> | ||
36 | #include <asm/arch/regs-gpio.h> | ||
37 | |||
38 | #include <asm/plat-s3c24xx/cpu.h> | ||
39 | #include <asm/plat-s3c24xx/irq.h> | ||
40 | #include <asm/plat-s3c24xx/pm.h> | ||
41 | |||
42 | /* the s3c2412 changes the behaviour of IRQ_EINT0 through IRQ_EINT3 by | ||
43 | * having them turn up in both the INT* and the EINT* registers. Whilst | ||
44 | * both show the status, they both now need to be acked when the IRQs | ||
45 | * go off. | ||
46 | */ | ||
47 | |||
48 | static void | ||
49 | s3c2412_irq_mask(unsigned int irqno) | ||
50 | { | ||
51 | unsigned long bitval = 1UL << (irqno - IRQ_EINT0); | ||
52 | unsigned long mask; | ||
53 | |||
54 | mask = __raw_readl(S3C2410_INTMSK); | ||
55 | __raw_writel(mask | bitval, S3C2410_INTMSK); | ||
56 | |||
57 | mask = __raw_readl(S3C2412_EINTMASK); | ||
58 | __raw_writel(mask | bitval, S3C2412_EINTMASK); | ||
59 | } | ||
60 | |||
61 | static inline void | ||
62 | s3c2412_irq_ack(unsigned int irqno) | ||
63 | { | ||
64 | unsigned long bitval = 1UL << (irqno - IRQ_EINT0); | ||
65 | |||
66 | __raw_writel(bitval, S3C2412_EINTPEND); | ||
67 | __raw_writel(bitval, S3C2410_SRCPND); | ||
68 | __raw_writel(bitval, S3C2410_INTPND); | ||
69 | } | ||
70 | |||
71 | static inline void | ||
72 | s3c2412_irq_maskack(unsigned int irqno) | ||
73 | { | ||
74 | unsigned long bitval = 1UL << (irqno - IRQ_EINT0); | ||
75 | unsigned long mask; | ||
76 | |||
77 | mask = __raw_readl(S3C2410_INTMSK); | ||
78 | __raw_writel(mask|bitval, S3C2410_INTMSK); | ||
79 | |||
80 | mask = __raw_readl(S3C2412_EINTMASK); | ||
81 | __raw_writel(mask | bitval, S3C2412_EINTMASK); | ||
82 | |||
83 | __raw_writel(bitval, S3C2412_EINTPEND); | ||
84 | __raw_writel(bitval, S3C2410_SRCPND); | ||
85 | __raw_writel(bitval, S3C2410_INTPND); | ||
86 | } | ||
87 | |||
88 | static void | ||
89 | s3c2412_irq_unmask(unsigned int irqno) | ||
90 | { | ||
91 | unsigned long bitval = 1UL << (irqno - IRQ_EINT0); | ||
92 | unsigned long mask; | ||
93 | |||
94 | mask = __raw_readl(S3C2412_EINTMASK); | ||
95 | __raw_writel(mask & ~bitval, S3C2412_EINTMASK); | ||
96 | |||
97 | mask = __raw_readl(S3C2410_INTMSK); | ||
98 | __raw_writel(mask & ~bitval, S3C2410_INTMSK); | ||
99 | } | ||
100 | |||
101 | static struct irq_chip s3c2412_irq_eint0t4 = { | ||
102 | .ack = s3c2412_irq_ack, | ||
103 | .mask = s3c2412_irq_mask, | ||
104 | .unmask = s3c2412_irq_unmask, | ||
105 | .set_wake = s3c_irq_wake, | ||
106 | .set_type = s3c_irqext_type, | ||
107 | }; | ||
108 | |||
109 | static int s3c2412_irq_add(struct sys_device *sysdev) | ||
110 | { | ||
111 | unsigned int irqno; | ||
112 | |||
113 | for (irqno = IRQ_EINT0; irqno <= IRQ_EINT3; irqno++) { | ||
114 | set_irq_chip(irqno, &s3c2412_irq_eint0t4); | ||
115 | set_irq_handler(irqno, handle_edge_irq); | ||
116 | set_irq_flags(irqno, IRQF_VALID); | ||
117 | } | ||
118 | |||
119 | return 0; | ||
120 | } | ||
121 | |||
122 | static struct sysdev_driver s3c2412_irq_driver = { | ||
123 | .add = s3c2412_irq_add, | ||
124 | .suspend = s3c24xx_irq_suspend, | ||
125 | .resume = s3c24xx_irq_resume, | ||
126 | }; | ||
127 | |||
128 | static int s3c2412_irq_init(void) | ||
129 | { | ||
130 | return sysdev_driver_register(&s3c2412_sysclass, &s3c2412_irq_driver); | ||
131 | } | ||
132 | |||
133 | arch_initcall(s3c2412_irq_init); | ||