/* * (C) Copyright 2007-2008 * Stelian Pop <stelian.pop@leadtechdesign.com> * Lead Tech Design <www.leadtechdesign.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/at91_common.h> #include <asm/arch/at91_pmc.h> #include <asm/arch/gpio.h> #include <asm/arch/io.h> void at91_spi0_hw_init(unsigned long cs_mask) { at91_set_A_periph(AT91_PIN_PA25, 0); /* SPI0_MISO */ at91_set_A_periph(AT91_PIN_PA26, 0); /* SPI0_MOSI */ at91_set_A_periph(AT91_PIN_PA27, 0); /* SPI0_SPCK */ /* Enable clock */ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9RL_ID_SPI); if (cs_mask & (1 << 0)) { at91_set_gpio_output(AT91_PIN_PA28, 1); } if (cs_mask & (1 << 1)) { at91_set_gpio_output(AT91_PIN_PB7, 1); } if (cs_mask & (1 << 2)) { at91_set_gpio_output(AT91_PIN_PD8, 1); } if (cs_mask & (1 << 3)) { at91_set_gpio_output(AT91_PIN_PD9, 1); } }