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https://github.com/AsahiLinux/u-boot
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74 lines
1.6 KiB
C
74 lines
1.6 KiB
C
/*
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* (C) Copyright 2006
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* Atmel Nordic AB <www.atmel.com>
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* Ulf Samuelsson <ulf@atmel.com>
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*
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* (C) Copyright 2010
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* Andreas Bießmann <andreas.devel@gmail.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/at91_pmc.h>
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#include <asm/arch/at91_pio.h>
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#include <status_led.h>
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/* bit mask in PIO port B */
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#define GREEN_LED (1<<0)
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#define YELLOW_LED (1<<1)
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#define RED_LED (1<<2)
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void green_led_on(void)
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{
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at91_pio_t *pio = (at91_pio_t *)ATMEL_BASE_PIO;
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writel(GREEN_LED, &pio->piob.codr);
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}
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void yellow_led_on(void)
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{
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at91_pio_t *pio = (at91_pio_t *)ATMEL_BASE_PIO;
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writel(YELLOW_LED, &pio->piob.codr);
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}
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void red_led_on(void)
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{
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at91_pio_t *pio = (at91_pio_t *)ATMEL_BASE_PIO;
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writel(RED_LED, &pio->piob.codr);
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}
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void green_led_off(void)
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{
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at91_pio_t *pio = (at91_pio_t *)ATMEL_BASE_PIO;
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writel(GREEN_LED, &pio->piob.sodr);
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}
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void yellow_led_off(void)
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{
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at91_pio_t *pio = (at91_pio_t *)ATMEL_BASE_PIO;
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writel(YELLOW_LED, &pio->piob.sodr);
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}
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void red_led_off(void)
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{
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at91_pio_t *pio = (at91_pio_t *)ATMEL_BASE_PIO;
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writel(RED_LED, &pio->piob.sodr);
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}
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void coloured_LED_init (void)
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{
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at91_pmc_t *pmc = (at91_pmc_t *)ATMEL_BASE_PMC;
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at91_pio_t *pio = (at91_pio_t *)ATMEL_BASE_PIO;
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/* Enable PIOB clock */
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writel(1 << ATMEL_ID_PIOB, &pmc->pcer);
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/* Disable peripherals on LEDs */
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writel(GREEN_LED | YELLOW_LED | RED_LED, &pio->piob.per);
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/* Enable pins as outputs */
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writel(GREEN_LED | YELLOW_LED | RED_LED, &pio->piob.oer);
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/* Turn all LEDs OFF */
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writel(GREEN_LED | YELLOW_LED | RED_LED, &pio->piob.sodr);
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}
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