1 /* 2 * (C) Copyright 2006 3 * Atmel Nordic AB <www.atmel.com> 4 * Ulf Samuelsson <ulf@atmel.com> 5 * 6 * See file CREDITS for list of people who contributed to this 7 * project. 8 * 9 * This program is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU General Public License as 11 * published by the Free Software Foundation; either version 2 of 12 * the License, or (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 22 * MA 02111-1307 USA 23 */ 24 25 #include <common.h> 26 #include <asm/arch/AT91RM9200.h> 27 #include <asm/io.h> 28 29 #define GREEN_LED AT91C_PIO_PB0 30 #define YELLOW_LED AT91C_PIO_PB1 31 #define RED_LED AT91C_PIO_PB2 32 33 void green_LED_on(void) 34 { 35 AT91PS_PIO PIOB = AT91C_BASE_PIOB; 36 37 writel(GREEN_LED, PIOB->PIO_CODR); 38 } 39 40 void yellow_LED_on(void) 41 { 42 AT91PS_PIO PIOB = AT91C_BASE_PIOB; 43 44 writel(YELLOW_LED, PIOB->PIO_CODR); 45 } 46 47 void red_LED_on(void) 48 { 49 AT91PS_PIO PIOB = AT91C_BASE_PIOB; 50 51 writel(RED_LED, PIOB->PIO_CODR); 52 } 53 54 void green_LED_off(void) 55 { 56 AT91PS_PIO PIOB = AT91C_BASE_PIOB; 57 58 writel(GREEN_LED, PIOB->PIO_SODR); 59 } 60 61 void yellow_LED_off(void) 62 { 63 AT91PS_PIO PIOB = AT91C_BASE_PIOB; 64 65 writel(YELLOW_LED, PIOB->PIO_SODR); 66 } 67 68 void red_LED_off(void) 69 { 70 AT91PS_PIO PIOB = AT91C_BASE_PIOB; 71 72 writel(RED_LED, PIOB->PIO_SODR); 73 } 74 75 76 void coloured_LED_init (void) 77 { 78 AT91PS_PIO PIOB = AT91C_BASE_PIOB; 79 AT91PS_PMC PMC = AT91C_BASE_PMC; 80 81 /* Enable PIOB clock */ 82 writel((1 << AT91C_ID_PIOB), PMC->PMC_PCER); 83 /* Disable peripherals on LEDs */ 84 writel(AT91C_PIO_PB2 | AT91C_PIO_PB1 | AT91C_PIO_PB0, PIOB->PIO_PER); 85 /* Enable pins as outputs */ 86 writel(AT91C_PIO_PB2 | AT91C_PIO_PB1 | AT91C_PIO_PB0, PIOB->PIO_OER); 87 /* Turn all LEDs OFF */ 88 writel(AT91C_PIO_PB2 | AT91C_PIO_PB1 | AT91C_PIO_PB0, PIOB->PIO_SODR); 89 } 90