uboot/board/calao/tny_a9260/spi.c
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   1/*
   2 * Copyright (C) 2009
   3 * Albin Tonnerre, Free Electrons <albin.tonnerre@free-electrons.com>
   4 *
   5 * See file CREDITS for list of people who contributed to this
   6 * project.
   7 *
   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.
  12 *
  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.
  17 *
  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,
  21 * MA 02111-1307 USA
  22 */
  23
  24#include <common.h>
  25#include <asm/arch/hardware.h>
  26#include <asm/arch/at91_spi.h>
  27#include <asm/arch/gpio.h>
  28#include <spi.h>
  29
  30#define TNY_A9260_CS_PIN        AT91_PIN_PC11
  31
  32int spi_cs_is_valid(unsigned int bus, unsigned int cs)
  33{
  34        return bus == 0 && cs == 1;
  35}
  36
  37void spi_cs_activate(struct spi_slave *slave)
  38{
  39        at91_set_gpio_value(TNY_A9260_CS_PIN, 0);
  40}
  41
  42void spi_cs_deactivate(struct spi_slave *slave)
  43{
  44        at91_set_gpio_value(TNY_A9260_CS_PIN, 1);
  45}
  46
  47void spi_init_f(void)
  48{
  49        /* everything done in board_init */
  50}
  51