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  * (C) Copyright 2010
   7  * Andreas Bießmann <andreas@biessmann.org>
   8  *
   9  * SPDX-License-Identifier:     GPL-2.0+
  10  */
  11
  12 #include <common.h>
  13 #include <asm/io.h>
  14 #include <asm/arch/hardware.h>
  15 #include <asm/arch/clk.h>
  16 #include <asm/arch/at91_pio.h>
  17 #include <status_led.h>
  18
  19 /* bit mask in PIO port B */
  20 #define GREEN_LED       (1<<0)
  21 #define YELLOW_LED      (1<<1)
  22 #define RED_LED         (1<<2)
  23
  24 void    green_led_on(void)
  25 {
  26         at91_pio_t *pio = (at91_pio_t *)ATMEL_BASE_PIO;
  27         writel(GREEN_LED, &pio->piob.codr);
  28 }
  29
  30 void     yellow_led_on(void)
  31 {
  32         at91_pio_t *pio = (at91_pio_t *)ATMEL_BASE_PIO;
  33         writel(YELLOW_LED, &pio->piob.codr);
  34 }
  35
  36 void     red_led_on(void)
  37 {
  38         at91_pio_t *pio = (at91_pio_t *)ATMEL_BASE_PIO;
  39         writel(RED_LED, &pio->piob.codr);
  40 }
  41
  42 void    green_led_off(void)
  43 {
  44         at91_pio_t *pio = (at91_pio_t *)ATMEL_BASE_PIO;
  45         writel(GREEN_LED, &pio->piob.sodr);
  46 }
  47
  48 void    yellow_led_off(void)
  49 {
  50         at91_pio_t *pio = (at91_pio_t *)ATMEL_BASE_PIO;
  51         writel(YELLOW_LED, &pio->piob.sodr);
  52 }
  53
  54 void    red_led_off(void)
  55 {
  56         at91_pio_t *pio = (at91_pio_t *)ATMEL_BASE_PIO;
  57         writel(RED_LED, &pio->piob.sodr);
  58 }
  59
  60 void coloured_LED_init (void)
  61 {
  62         at91_pio_t *pio = (at91_pio_t *)ATMEL_BASE_PIO;
  63
  64         at91_periph_clk_enable(ATMEL_ID_PIOB);
  65
  66         /* Disable peripherals on LEDs */
  67         writel(GREEN_LED | YELLOW_LED | RED_LED, &pio->piob.per);
  68         /* Enable pins as outputs */
  69         writel(GREEN_LED | YELLOW_LED | RED_LED, &pio->piob.oer);
  70         /* Turn all LEDs OFF */
  71         writel(GREEN_LED | YELLOW_LED | RED_LED, &pio->piob.sodr);
  72 }