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Diffstat (limited to 'arch/arm/mach-s3c2410/gpio.c')
-rw-r--r--arch/arm/mach-s3c2410/gpio.c72
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
36int 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
72EXPORT_SYMBOL(s3c2410_gpio_irqfilter);