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/*
* (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_A_periph(AT91_PIN_PA28, 1);
}
if (cs_mask & (1 << 1)) {
at91_set_B_periph(AT91_PIN_PB7, 1);
}
if (cs_mask & (1 << 2)) {
at91_set_A_periph(AT91_PIN_PD8, 1);
}
if (cs_mask & (1 << 3)) {
at91_set_B_periph(AT91_PIN_PD9, 1);
}
if (cs_mask & (1 << 4)) {
at91_set_gpio_output(AT91_PIN_PA28, 1);
}
if (cs_mask & (1 << 5)) {
at91_set_gpio_output(AT91_PIN_PB7, 1);
}
if (cs_mask & (1 << 6)) {
at91_set_gpio_output(AT91_PIN_PD8, 1);
}
if (cs_mask & (1 << 7)) {
at91_set_gpio_output(AT91_PIN_PD9, 1);
}
}
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