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author | Timothy Pearson <tpearson@raptorengineering.com> | 2019-05-11 15:12:49 -0500 |
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committer | Timothy Pearson <tpearson@raptorengineering.com> | 2019-05-11 15:12:49 -0500 |
commit | 9e80202352dd49bdd9e67b8b906d86f058431505 (patch) | |
tree | 5673c17aad6e3833da8c4ff21b5a11f666ec9fbe /src/roms/u-boot/board/atmel/at91rm9200ek/led.c | |
download | hqemu-master.zip hqemu-master.tar.gz |
Diffstat (limited to 'src/roms/u-boot/board/atmel/at91rm9200ek/led.c')
-rw-r--r-- | src/roms/u-boot/board/atmel/at91rm9200ek/led.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/src/roms/u-boot/board/atmel/at91rm9200ek/led.c b/src/roms/u-boot/board/atmel/at91rm9200ek/led.c new file mode 100644 index 0000000..2298e36 --- /dev/null +++ b/src/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); +} |