3 * Albin Tonnerre, Free Electrons <albin.tonnerre@free-electrons.com>
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 #include <asm/arch/hardware.h>
26 #include <asm/arch/at91_spi.h>
27 #include <asm/arch/gpio.h>
30 #define SBC_A9260_CS0_PIN AT91_PIN_PA3
31 #define SBC_A9260_CS1_PIN AT91_PIN_PC11
33 int spi_cs_is_valid(unsigned int bus, unsigned int cs)
35 return bus == 0 && (cs == 1 || cs == 0);
38 void spi_cs_activate(struct spi_slave *slave)
41 at91_set_gpio_value(SBC_A9260_CS0_PIN, 0);
42 else if(slave->cs == 1)
43 at91_set_gpio_value(SBC_A9260_CS1_PIN, 0);
46 void spi_cs_deactivate(struct spi_slave *slave)
49 at91_set_gpio_value(SBC_A9260_CS0_PIN, 1);
50 else if(slave->cs == 1)
51 at91_set_gpio_value(SBC_A9260_CS1_PIN, 1);
56 /* everything done in board_init */