arch/tile/include/hv/drv_srom_intf.h

   1 /*
   2  * Copyright 2011 Tilera Corporation. All Rights Reserved.
   3  *
   4  *   This program is free software; you can redistribute it and/or
   5  *   modify it under the terms of the GNU General Public License
   6  *   as published by the Free Software Foundation, version 2.
   7  *
   8  *   This program is distributed in the hope that it will be useful, but
   9  *   WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
  11  *   NON INFRINGEMENT.  See the GNU General Public License for
  12  *   more details.
  13  */
  14
  15 /**
  16  * @file drv_srom_intf.h
  17  * Interface definitions for the SPI Flash ROM driver.
  18  */
  19
  20 #ifndef _SYS_HV_INCLUDE_DRV_SROM_INTF_H
  21 #define _SYS_HV_INCLUDE_DRV_SROM_INTF_H
  22
  23 /** Read this offset to get the total device size. */
  24 #define SROM_TOTAL_SIZE_OFF   0xF0000000
  25
  26 /** Read this offset to get the device sector size. */
  27 #define SROM_SECTOR_SIZE_OFF  0xF0000004
  28
  29 /** Read this offset to get the device page size. */
  30 #define SROM_PAGE_SIZE_OFF    0xF0000008
  31
  32 /** Write this offset to flush any pending writes. */
  33 #define SROM_FLUSH_OFF        0xF1000000
  34
  35 /** Write this offset, plus the byte offset of the start of a sector, to
  36  *  erase a sector.  Any write data is ignored, but there must be at least
  37  *  one byte of write data.  Only applies when the driver is in MTD mode.
  38  */
  39 #define SROM_ERASE_OFF        0xF2000000
  40
  41 #endif /* _SYS_HV_INCLUDE_DRV_SROM_INTF_H */