diff options
Diffstat (limited to 'qemu/roms/u-boot/board/atmel/at91rm9200ek/led.c')
-rw-r--r-- | qemu/roms/u-boot/board/atmel/at91rm9200ek/led.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/board/atmel/at91rm9200ek/led.c b/qemu/roms/u-boot/board/atmel/at91rm9200ek/led.c new file mode 100644 index 000000000..2298e3619 --- /dev/null +++ b/qemu/roms/u-boot/board/atmel/at91rm9200ek/led.c @@ -0,0 +1,73 @@ +/* + * (C) Copyright 2006 + * Atmel Nordic AB <www.atmel.com> + * Ulf Samuelsson <ulf@atmel.com> + * + * (C) Copyright 2010 + * Andreas Bießmann <andreas.devel@gmail.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/hardware.h> +#include <asm/arch/at91_pmc.h> +#include <asm/arch/at91_pio.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 *)ATMEL_BASE_PIO; + writel(GREEN_LED, &pio->piob.codr); +} + +void yellow_led_on(void) +{ + at91_pio_t *pio = (at91_pio_t *)ATMEL_BASE_PIO; + writel(YELLOW_LED, &pio->piob.codr); +} + +void red_led_on(void) +{ + at91_pio_t *pio = (at91_pio_t *)ATMEL_BASE_PIO; + writel(RED_LED, &pio->piob.codr); +} + +void green_led_off(void) +{ + at91_pio_t *pio = (at91_pio_t *)ATMEL_BASE_PIO; + writel(GREEN_LED, &pio->piob.sodr); +} + +void yellow_led_off(void) +{ + at91_pio_t *pio = (at91_pio_t *)ATMEL_BASE_PIO; + writel(YELLOW_LED, &pio->piob.sodr); +} + +void red_led_off(void) +{ + at91_pio_t *pio = (at91_pio_t *)ATMEL_BASE_PIO; + writel(RED_LED, &pio->piob.sodr); +} + +void coloured_LED_init (void) +{ + at91_pmc_t *pmc = (at91_pmc_t *)ATMEL_BASE_PMC; + at91_pio_t *pio = (at91_pio_t *)ATMEL_BASE_PIO; + + /* Enable PIOB clock */ + writel(1 << ATMEL_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); +} |