release/src-rt-6.x.4708/cfe/cfe/arch/mips/board/pt1125/include/dev_ptflash.h

   1 /*  *********************************************************************
   2     *  Broadcom Common Firmware Environment (CFE)
   3     *
   4     *  Flash memory definitions                 File: dev_ptflash.h
   5     *
   6     *  Stuff we use when manipulating flash memory devices.
   7     *  Note: this is a special version for the PTSWARM board.
   8     *
   9     *  Author:  Mitch Lichtenberg (mpl@broadcom.com)
  10     *
  11     *********************************************************************
  12     *
  13     *  Copyright 2000,2001
  14     *  Broadcom Corporation. All rights reserved.
  15     *
  16     *  This software is furnished under license and may be used and
  17     *  copied only in accordance with the following terms and
  18     *  conditions.  Subject to these conditions, you may download,
  19     *  copy, install, use, modify and distribute modified or unmodified
  20     *  copies of this software in source and/or binary form.  No title
  21     *  or ownership is transferred hereby.
  22     *
  23     *  1) Any source code used, modified or distributed must reproduce
  24     *     and retain this copyright notice and list of conditions as
  25     *     they appear in the source file.
  26     *
  27     *  2) No right is granted to use any trade name, trademark, or
  28     *     logo of Broadcom Corporation. Neither the "Broadcom
  29     *     Corporation" name nor any trademark or logo of Broadcom
  30     *     Corporation may be used to endorse or promote products
  31     *     derived from this software without the prior written
  32     *     permission of Broadcom Corporation.
  33     *
  34     *  3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR
  35     *     IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED
  36     *     WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
  37     *     PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT
  38     *     SHALL BROADCOM BE LIABLE FOR ANY DAMAGES WHATSOEVER, AND IN
  39     *     PARTICULAR, BROADCOM SHALL NOT BE LIABLE FOR DIRECT, INDIRECT,
  40     *     INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  41     *     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  42     *     GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  43     *     BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  44     *     OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  45     *     TORT (INCLUDING NEGLIGENCE OR OTHERWISE), EVEN IF ADVISED OF
  46     *     THE POSSIBILITY OF SUCH DAMAGE.
  47     ********************************************************************* */
  48
  49 /*
  50  * AMD Flash commands and magic offsets
  51  */
  52
  53 #define AMD_FLASH_MAGIC_ADDR_1  0x555   /* AAA for 16-bit devices in 8-bit mode */
  54 #define AMD_FLASH_MAGIC_ADDR_2  0x2AA   /* 554 for 16-bit devices in 8-bit mode */
  55
  56 #define AMD_FLASH_RESET         0xF0
  57 #define AMD_FLASH_MAGIC_1       0xAA
  58 #define AMD_FLASH_MAGIC_2       0x55
  59 #define AMD_FLASH_AUTOSEL       0x90
  60 #define AMD_FLASH_PROGRAM       0xA0
  61 #define AMD_FLASH_UNLOCK_BYPASS 0x20
  62 #define AMD_FLASH_ERASE_3       0x80
  63 #define AMD_FLASH_ERASE_4       0xAA
  64 #define AMD_FLASH_ERASE_5       0x55
  65 #define AMD_FLASH_ERASE_ALL_6   0x10
  66 #define AMD_FLASH_ERASE_SEC_6   0x30
  67
  68 /*
  69  * INTEL Flash commands and magic offsets
  70  */
  71
  72 #define INTEL_FLASH_READ_MODE 0xFF
  73 #define INTEL_FLASH_ERASE_BLOCK 0x20
  74 #define INTEL_FLASH_ERASE_CONFIRM 0xD0
  75 #define INTEL_FLASH_PROGRAM     0x40
  76
  77 /* INTEL Flash commands for 16-bit mode */
  78 #define INTEL_FLASH_16BIT_READ_MODE             0xFF00
  79 #define INTEL_FLASH_16BIT_ERASE_BLOCK           0x2000
  80 #define INTEL_FLASH_16BIT_ERASE_CONFIRM         0xD000
  81 #define INTEL_FLASH_16BIT_PROGRAM               0x4000
  82 #define INTEL_FLASH_8BIT                        0
  83 #define INTEL_FLASH_16BIT                       1
  84
  85
  86 /*
  87  * Common Flash Interface (CFI) commands and offsets
  88  */
  89
  90 #define FLASH_CFI_QUERY_ADDR    0x55
  91 #define FLASH_CFI_QUERY_MODE    0x98
  92 #define FLASH_CFI_QUERY_EXIT    0xFF
  93
  94 #define FLASH_CFI_MANUFACTURER  0x00
  95 #define FLASH_CFI_DEVICE        0x01
  96 #define FLASH_CFI_SIGNATURE     0x10
  97 #define FLASH_CFI_QUERY_STRING  0x10
  98 #define FLASH_CFI_COMMAND_SET   0x13
  99 #define FLASH_CFI_DEVICE_SIZE   0x27
 100 #define FLASH_CFI_DEVICE_INTERFACE 0x28
 101 #define FLASH_CFI_REGION_COUNT  0x2C
 102 #define FLASH_CFI_REGION_TABLE  0x2D
 103
 104 #define FLASH_CFI_CMDSET_INTEL_ECS      0x0001  /* Intel extended */
 105 #define FLASH_CFI_CMDSET_AMD_STD        0x0002  /* AMD Standard */
 106 #define FLASH_CFI_CMDSET_INTEL_STD      0x0003  /* Intel Standard */
 107 #define FLASH_CFI_CMDSET_AMD_ECS        0x0004  /* AMD Extended */
 108
 109 #define FLASH_CFI_DEVIF_X8      0x0000  /* 8-bit asynchronous */
 110 #define FLASH_CFI_DEVIF_X16     0x0001  /* 16-bit asynchronous */
 111 #define FLASH_CFI_DEVIF_X8X16   0x0002  /* 8 or 16-bit with BYTE# pin */
 112 #define FLASH_CFI_DEVIF_X32     0x0003  /* 32-bit asynchronous */
 113
 114 /*
 115  * JEDEC offsets
 116  */
 117
 118 #define FLASH_JEDEC_OFFSET_MFR  0
 119 #define FLASH_JEDEC_OFFSET_DEV  1
 120
 121 /* Vendor-specific flash identifiers */
 122
 123 #define FLASH_MFR_HYUNDAI       0xAD
 124
 125 /*  *********************************************************************
 126     *  Macros for defining custom sector tables
 127     ********************************************************************* */
 128
 129 #define FLASH_SECTOR_RANGE(nblks,size) (((nblks)-1) << 16) + ((size)/256)
 130 #define FLASH_SECTOR_NBLKS(x) (((x) >> 16)+1)
 131 #define FLASH_SECTOR_SIZE(x) (((x) & 0xFFFF)*256)
 132 #define FLASH_MAXSECTORS  8
 133
 134
 135 /*  *********************************************************************
 136     *  Structures
 137     ********************************************************************* */
 138
 139 /*
 140  * This structure is passed in the "probe_ptr" field of the
 141  * flash's probe routines and can be used for advanced
 142  * configuration.  If you pass this structure, probe_a and
 143  * probe_b will be ignored by the driver
 144  *
 145  * flash_prog_phys is the base address you use for flash commands -
 146  * you can put 0 here if it's the same as flash_phys.  some boards,
 147  * like the Algor P5064, have a different PA region used for doing
 148  * byte accesses to the flash.  In this case the special
 149  * "flash_prog_phys" field is used for that.
 150  */
 151
 152
 153 #define FLASH_FLG_NVRAM 0x00000001      /* Reserve space for NVRAM */
 154 #define FLASH_FLG_AUTOSIZE 0x00000002   /* resize to actual device size */
 155 #define FLASH_FLG_16BIT 0x00000004      /* it's a 16-bit ROM in 16-bit mode */
 156 #define FLASH_FLG_MANUAL 0x00000008     /* Not CFI, manual sectoring */
 157 #define FLASH_FLG_WIDE 0x00000010       /* must shift control addresses left one bit */
 158
 159 #ifndef __ASSEMBLER__
 160 typedef struct flash_probe_t {
 161     long flash_phys;
 162     long flash_prog_phys;       /* base address for programming, if different */
 163     int flash_size;             /* total flash size */
 164     int flash_flags;
 165     int nchips;                 /* number of physical sequential devices */
 166     int chipsize;               /* size of single flash chip */
 167     /* The following are used when manually sectoring */
 168     int flash_cmdset;
 169     int flash_nsectors;         /* number of ranges */
 170     int flash_sectors[FLASH_MAXSECTORS];
 171 } flash_probe_t;
 172 #endif