1 /****************************************************************************
3 * SPI Serial EEPROM (25XX512 only) support
5 * Copyright (C) 2012 Eke-Eke (Genesis Plus GX)
7 * Redistribution and use of this code or any derivative works are permitted
8 * provided that the following conditions are met:
10 * - Redistributions may not be sold, nor may they be used in a commercial
11 * product or activity.
13 * - Redistributions that are modified from the original source must include the
14 * complete source code, including the source code for all components used by a
15 * binary built from the modified sources. However, as a special exception, the
16 * source code distributed need not include anything that is normally distributed
17 * (in either source or binary form) with the major components (compiler, kernel,
18 * and so on) of the operating system on which the executable runs, unless that
19 * component itself accompanies the executable.
21 * - Redistributions must reproduce the above copyright notice, this list of
22 * conditions and the following disclaimer in the documentation and/or other
23 * materials provided with the distribution.
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
29 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
37 ****************************************************************************************/
39 #ifndef _EEPROM_SPI_H_
40 #define _EEPROM_SPI_H_
42 /* Function prototypes */
43 extern void *eeprom_spi_init(int *size);
44 extern void eeprom_spi_write(unsigned char data);
45 extern unsigned int eeprom_spi_read(unsigned int address);