arch/arm/include/asm/arch-tegra20/tegra20_sflash.h

   1 /*
   2  * NVIDIA Tegra20 SPI-FLASH controller
   3  *
   4  * Copyright 2010-2012 NVIDIA Corporation
   5  *
   6  * This software may be used and distributed according to the
   7  * terms of the GNU Public License, Version 2, incorporated
   8  * herein by reference.
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License
  12  * Version 2 as published by the Free Software Foundation.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  22  * MA 02111-1307 USA
  23  */
  24
  25 #ifndef _TEGRA20_SPI_H_
  26 #define _TEGRA20_SPI_H_
  27
  28 #include <asm/types.h>
  29
  30 int tegra20_spi_cs_is_valid(unsigned int bus, unsigned int cs);
  31 struct spi_slave *tegra20_spi_setup_slave(unsigned int bus, unsigned int cs,
  32                                   unsigned int max_hz, unsigned int mode);
  33 void tegra20_spi_free_slave(struct spi_slave *slave);
  34 int tegra20_spi_init(int *node_list, int count);
  35 int tegra20_spi_claim_bus(struct spi_slave *slave);
  36 void tegra20_spi_cs_activate(struct spi_slave *slave);
  37 void tegra20_spi_cs_deactivate(struct spi_slave *slave);
  38 int tegra20_spi_xfer(struct spi_slave *slave, unsigned int bitlen,
  39              const void *data_out, void *data_in, unsigned long flags);
  40
  41 #endif  /* _TEGRA20_SPI_H_ */