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-rw-r--r--u-boot/board/atmel/at91rm9200ek/led.c87
1 files changed, 87 insertions, 0 deletions
diff --git a/u-boot/board/atmel/at91rm9200ek/led.c b/u-boot/board/atmel/at91rm9200ek/led.c
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+++ b/u-boot/board/atmel/at91rm9200ek/led.c
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+/*
+ * (C) Copyright 2006
+ * Atmel Nordic AB <www.atmel.com>
+ * Ulf Samuelsson <ulf@atmel.com>
+ *
+ * (C) Copyright 2010
+ * Andreas Bießmann <andreas.devel@gmail.com>
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/at91_pmc.h>
+
+/* bit mask in PIO port B */
+#define GREEN_LED (1<<0)
+#define YELLOW_LED (1<<1)
+#define RED_LED (1<<2)
+
+void green_LED_on(void)
+{
+ at91_pio_t *pio = (at91_pio_t *)AT91_PIO_BASE;
+ writel(GREEN_LED, &pio->piob.codr);
+}
+
+void yellow_LED_on(void)
+{
+ at91_pio_t *pio = (at91_pio_t *)AT91_PIO_BASE;
+ writel(YELLOW_LED, &pio->piob.codr);
+}
+
+void red_LED_on(void)
+{
+ at91_pio_t *pio = (at91_pio_t *)AT91_PIO_BASE;
+ writel(RED_LED, &pio->piob.codr);
+}
+
+void green_LED_off(void)
+{
+ at91_pio_t *pio = (at91_pio_t *)AT91_PIO_BASE;
+ writel(GREEN_LED, &pio->piob.sodr);
+}
+
+void yellow_LED_off(void)
+{
+ at91_pio_t *pio = (at91_pio_t *)AT91_PIO_BASE;
+ writel(YELLOW_LED, &pio->piob.sodr);
+}
+
+void red_LED_off(void)
+{
+ at91_pio_t *pio = (at91_pio_t *)AT91_PIO_BASE;
+ writel(RED_LED, &pio->piob.sodr);
+}
+
+void coloured_LED_init (void)
+{
+ at91_pmc_t *pmc = (at91_pmc_t *)AT91_PMC_BASE;
+ at91_pio_t *pio = (at91_pio_t *)AT91_PIO_BASE;
+
+ /* Enable PIOB clock */
+ writel(1 << AT91_ID_PIOB, &pmc->pcer);
+
+ /* Disable peripherals on LEDs */
+ writel(GREEN_LED | YELLOW_LED | RED_LED, &pio->piob.per);
+ /* Enable pins as outputs */
+ writel(GREEN_LED | YELLOW_LED | RED_LED, &pio->piob.oer);
+ /* Turn all LEDs OFF */
+ writel(GREEN_LED | YELLOW_LED | RED_LED, &pio->piob.sodr);
+}