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/**************************************************************************
*
* Copyright (c) 2013 Alcatel-Lucent
*
* Alcatel Lucent licenses this file to You under the Apache License,
* Version 2.0 (the "License"); you may not use this file except in
* compliance with the License. A copy of the License is contained the
* file LICENSE at the top level of this repository.
* You may also obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
**************************************************************************
*
* spif.h:
*
* SPI-flash iterface. See spif.c for details.
*
* Original author: Ed Sutter (ed.sutter@alcatel-lucent.com)
*
*/
/* Status register bits for ATMEL device: */
#define SPRL 0x80 // Sector protection registers locked (if 1)
#define RES 0x40 // Reserved for future use
#define EPE 0x20 // Erase or program error (if 1)
#define WPP 0x10 // *WP pin is deasserted (if 1)
#define SWPS 0x0c // Software protection status bits
#define SWPS00 0x00 // 00: all sectors unprotected
#define SWPS01 0x04 // 01: some sectors unprotected
#define SWPS10 0x08 // 10: reserved for future use
#define SWPS11 0x0c // 11: all sectors protected (default)
#define WEL 0x02 // Write enable latch (1=write enabled)
#define BSY 0x01 // Busy (1=busy, 0=ready)
/* Baudrate could be much higher, but we keep it low here for easier
* ability to trace out on the scope...
*/
#ifndef SPIFBAUD
#define SPIFBAUD 25000000
#endif
/* The ATMEL part supports three different erase block sizes (not
* including the 'whole-chip' erase)...
*/
#define BLKSZ_4K 0x20
#define BLKSZ_32K 0x52
#define BLKSZ_64K 0xD8
extern void spifQinit(void);
extern int spifInit(void);
extern int spifWaitForReady(void);
extern int spifId(int verbose);
extern int spifWriteEnable(void);
extern int spifWriteDisable(void);
extern int spifChipErase(void);
extern int spifGlobalUnprotect(void);
extern int spifGlobalProtect(void);
extern int spifReadBlock(unsigned long addr,char *data,int len);
extern int spifWriteBlock(unsigned long addr, char *data, int len);
extern int spifBlockErase(int bsize, long addr);
extern unsigned short spifReadStatus(int verbose);
extern unsigned long spifGetTFSBase(void);
extern unsigned long spifGetTFSSize(void);
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