diff options
Diffstat (limited to 'arch/arm/mach-s3c2410/gpio.c')
-rw-r--r-- | arch/arm/mach-s3c2410/gpio.c | 72 |
1 files changed, 0 insertions, 72 deletions
diff --git a/arch/arm/mach-s3c2410/gpio.c b/arch/arm/mach-s3c2410/gpio.c deleted file mode 100644 index 9664e011dae2..000000000000 --- a/arch/arm/mach-s3c2410/gpio.c +++ /dev/null | |||
@@ -1,72 +0,0 @@ | |||
1 | /* linux/arch/arm/mach-s3c2410/gpio.c | ||
2 | * | ||
3 | * Copyright (c) 2004-2006 Simtec Electronics | ||
4 | * Ben Dooks <ben@simtec.co.uk> | ||
5 | * | ||
6 | * S3C2410 GPIO 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/kernel.h> | ||
24 | #include <linux/init.h> | ||
25 | #include <linux/module.h> | ||
26 | #include <linux/interrupt.h> | ||
27 | #include <linux/ioport.h> | ||
28 | #include <linux/io.h> | ||
29 | |||
30 | #include <mach/hardware.h> | ||
31 | #include <mach/gpio-fns.h> | ||
32 | #include <asm/irq.h> | ||
33 | |||
34 | #include <mach/regs-gpio.h> | ||
35 | |||
36 | int s3c2410_gpio_irqfilter(unsigned int pin, unsigned int on, | ||
37 | unsigned int config) | ||
38 | { | ||
39 | void __iomem *reg = S3C24XX_EINFLT0; | ||
40 | unsigned long flags; | ||
41 | unsigned long val; | ||
42 | |||
43 | if (pin < S3C2410_GPG(8) || pin > S3C2410_GPG(15)) | ||
44 | return -EINVAL; | ||
45 | |||
46 | config &= 0xff; | ||
47 | |||
48 | pin -= S3C2410_GPG(8); | ||
49 | reg += pin & ~3; | ||
50 | |||
51 | local_irq_save(flags); | ||
52 | |||
53 | /* update filter width and clock source */ | ||
54 | |||
55 | val = __raw_readl(reg); | ||
56 | val &= ~(0xff << ((pin & 3) * 8)); | ||
57 | val |= config << ((pin & 3) * 8); | ||
58 | __raw_writel(val, reg); | ||
59 | |||
60 | /* update filter enable */ | ||
61 | |||
62 | val = __raw_readl(S3C24XX_EXTINT2); | ||
63 | val &= ~(1 << ((pin * 4) + 3)); | ||
64 | val |= on << ((pin * 4) + 3); | ||
65 | __raw_writel(val, S3C24XX_EXTINT2); | ||
66 | |||
67 | local_irq_restore(flags); | ||
68 | |||
69 | return 0; | ||
70 | } | ||
71 | |||
72 | EXPORT_SYMBOL(s3c2410_gpio_irqfilter); | ||