blob: 47e24cd6ed946f7e9e6b336429585389e87b8b47 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
/*
* Copyright (C) 2009 Matthias Kaehlcke <matthias@kaehlcke.net>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <common.h>
#include <io.h>
#include <mach/ep93xx-regs.h>
#include "led.h"
#define GREEN_LED_POS 0x01
#define RED_LED_POS 0x02
inline void switch_LED_on(uint32_t bit_pos)
{
register struct gpio_regs *gpio = (struct gpio_regs *)GPIO_BASE;
writel(readl(&gpio->pedr) | bit_pos, &gpio->pedr);
}
inline void switch_LED_off(uint32_t bit_pos)
{
register struct gpio_regs *gpio = (struct gpio_regs *)GPIO_BASE;
writel(readl(&gpio->pedr) & ~bit_pos, &gpio->pedr);
}
void red_LED_on(void)
{
switch_LED_on(RED_LED_POS);
}
void red_LED_off(void)
{
switch_LED_off(RED_LED_POS);
}
void green_LED_on(void)
{
switch_LED_on(GREEN_LED_POS);
}
void green_LED_off(void)
{
switch_LED_off(GREEN_LED_POS);
}
|
