board/atmel/at91rm9200ek/led.c

   1 /*
   2  * (C) Copyright 2006
   3  * Atmel Nordic AB <www.atmel.com>
   4  * Ulf Samuelsson <ulf@atmel.com>
   5  *
   6  * See file CREDITS for list of people who contributed to this
   7  * project.
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License as
  11  * published by the Free Software Foundation; either version 2 of
  12  * the License, or (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  22  * MA 02111-1307 USA
  23  */
  24
  25 #include <common.h>
  26 #include <asm/arch/AT91RM9200.h>
  27 #include <asm/io.h>
  28
  29 #define GREEN_LED       AT91C_PIO_PB0
  30 #define YELLOW_LED      AT91C_PIO_PB1
  31 #define RED_LED         AT91C_PIO_PB2
  32
  33 void    green_LED_on(void)
  34 {
  35         AT91PS_PIO      PIOB    = AT91C_BASE_PIOB;
  36
  37         writel(GREEN_LED, PIOB->PIO_CODR);
  38 }
  39
  40 void     yellow_LED_on(void)
  41 {
  42         AT91PS_PIO      PIOB    = AT91C_BASE_PIOB;
  43
  44         writel(YELLOW_LED, PIOB->PIO_CODR);
  45 }
  46
  47 void     red_LED_on(void)
  48 {
  49         AT91PS_PIO      PIOB    = AT91C_BASE_PIOB;
  50
  51         writel(RED_LED, PIOB->PIO_CODR);
  52 }
  53
  54 void    green_LED_off(void)
  55 {
  56         AT91PS_PIO      PIOB    = AT91C_BASE_PIOB;
  57
  58         writel(GREEN_LED, PIOB->PIO_SODR);
  59 }
  60
  61 void    yellow_LED_off(void)
  62 {
  63         AT91PS_PIO      PIOB    = AT91C_BASE_PIOB;
  64
  65         writel(YELLOW_LED, PIOB->PIO_SODR);
  66 }
  67
  68 void    red_LED_off(void)
  69 {
  70         AT91PS_PIO      PIOB    = AT91C_BASE_PIOB;
  71
  72         writel(RED_LED, PIOB->PIO_SODR);
  73 }
  74
  75
  76 void coloured_LED_init (void)
  77 {
  78         AT91PS_PIO      PIOB    = AT91C_BASE_PIOB;
  79         AT91PS_PMC      PMC     = AT91C_BASE_PMC;
  80
  81         /* Enable PIOB clock */
  82         writel((1 << AT91C_ID_PIOB), PMC->PMC_PCER);
  83         /* Disable peripherals on LEDs */
  84         writel(AT91C_PIO_PB2 | AT91C_PIO_PB1 | AT91C_PIO_PB0, PIOB->PIO_PER);
  85         /* Enable pins as outputs */
  86         writel(AT91C_PIO_PB2 | AT91C_PIO_PB1 | AT91C_PIO_PB0, PIOB->PIO_OER);
  87         /* Turn all LEDs OFF */
  88         writel(AT91C_PIO_PB2 | AT91C_PIO_PB1 | AT91C_PIO_PB0, PIOB->PIO_SODR);
  89 }