mirror of
https://github.com/AsahiLinux/u-boot
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58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
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/*
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* Copyright (C) 2009
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* Albin Tonnerre, Free Electrons <albin.tonnerre@free-electrons.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/at91_spi.h>
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#include <asm/arch/gpio.h>
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#include <spi.h>
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#define SBC_A9260_CS0_PIN AT91_PIN_PA3
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#define SBC_A9260_CS1_PIN AT91_PIN_PC11
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int spi_cs_is_valid(unsigned int bus, unsigned int cs)
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{
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return bus == 0 && (cs == 1 || cs == 0);
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}
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void spi_cs_activate(struct spi_slave *slave)
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{
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if(slave->cs == 0)
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at91_set_gpio_value(SBC_A9260_CS0_PIN, 0);
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else if(slave->cs == 1)
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at91_set_gpio_value(SBC_A9260_CS1_PIN, 0);
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}
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void spi_cs_deactivate(struct spi_slave *slave)
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{
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if(slave->cs == 0)
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at91_set_gpio_value(SBC_A9260_CS0_PIN, 1);
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else if(slave->cs == 1)
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at91_set_gpio_value(SBC_A9260_CS1_PIN, 1);
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}
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void spi_init_f(void)
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{
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/* everything done in board_init */
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}
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