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* Added execute permissions to files missed in conversion from CVS
author alexs
date Thu, 08 May 2003 17:42:17 +0000
parents d2c90368aeef
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 //==========================================================================
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2 //
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3 // flash.c
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4 //
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5 // Flash programming
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6 //
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7 //==========================================================================
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8 //####ECOSGPLCOPYRIGHTBEGIN####
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9 // -------------------------------------------
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10 // This file is part of eCos, the Embedded Configurable Operating System.
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11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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12 //
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13 // eCos is free software; you can redistribute it and/or modify it under
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14 // the terms of the GNU General Public License as published by the Free
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15 // Software Foundation; either version 2 or (at your option) any later version.
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16 //
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17 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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18 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
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19 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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20 // for more details.
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21 //
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22 // You should have received a copy of the GNU General Public License along
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23 // with eCos; if not, write to the Free Software Foundation, Inc.,
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24 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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25 //
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26 // As a special exception, if other files instantiate templates or use macros
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27 // or inline functions from this file, or you compile this file and link it
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28 // with other works to produce a work based on this file, this file does not
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29 // by itself cause the resulting work to be covered by the GNU General Public
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30 // License. However the source code for this file must still be made available
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31 // in accordance with section (3) of the GNU General Public License.
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32 //
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33 // This exception does not invalidate any other reasons why a work based on
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34 // this file might be covered by the GNU General Public License.
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35 //
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36 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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37 // at http://sources.redhat.com/ecos/ecos-license/
208
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38 // -------------------------------------------
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39 //####ECOSGPLCOPYRIGHTEND####
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40 //==========================================================================
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41 //#####DESCRIPTIONBEGIN####
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42 //
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43 // Author(s): gthomas
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44 // Contributors: gthomas
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45 // Date: 2000-07-26
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46 // Purpose:
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47 // Description:
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48 //
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49 //####DESCRIPTIONEND####
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50 //
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51 //==========================================================================
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52
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53 #include <pkgconf/system.h>
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54 #include <pkgconf/io_flash.h>
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55
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56 #include <cyg/hal/hal_arch.h>
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57 #include <cyg/hal/hal_intr.h>
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58 #include <cyg/hal/hal_cache.h>
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59 #include <string.h>
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60
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61 #define _FLASH_PRIVATE_
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62 #include <cyg/io/flash.h>
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63
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64 // When this flag is set, do not actually jump to the relocated code.
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65 // This can be used for running the function in place (RAM startup only),
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66 // allowing calls to diag_printf() and similar.
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67 #undef RAM_FLASH_DEV_DEBUG
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68 #if !defined(CYG_HAL_STARTUP_RAM) && defined(RAM_FLASH_DEV_DEBUG)
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69 # warning "Can only enable the flash debugging when configured for RAM startup"
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70 # undef CYGHWR_IO_FLASH_DEVICE_NOT_IN_RAM
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71 #endif
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72
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73 struct flash_info flash_info;
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74
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75 int
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76 flash_init(void *work_space, int work_space_size, _printf *pf)
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77 {
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78 int err;
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79
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80 if (flash_info.init) return FLASH_ERR_OK;
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81 flash_info.pf = pf; // Do this before calling into the driver
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82 flash_info.work_space = work_space;
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83 flash_info.work_space_size = work_space_size;
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84 if ((err = flash_hwr_init()) != FLASH_ERR_OK) {
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85 return err;
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86 }
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87 flash_info.block_mask = ~(flash_info.block_size-1);
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88 flash_info.init = 1;
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89 return FLASH_ERR_OK;
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90 }
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91
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92 #ifndef CYGHWR_IO_FLASH_DEVICE_NOT_IN_RAM
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93 // Use this function to make function pointers anonymous - forcing the
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94 // compiler to use jumps instead of branches when calling driver
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95 // services.
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96 static void* __anonymizer(void* p)
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97 {
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98 return p;
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99 }
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100 #endif
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101
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102 // FIXME: Want to change all drivers to use this function. But it may
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103 // make sense to wait till device structure pointer arguments get
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104 // added as well.
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105 void
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106 flash_dev_query(void* data)
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107 {
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108 typedef void code_fun(void*);
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109 code_fun *_flash_query;
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110 int d_cache, i_cache;
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111
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112 #ifdef CYGHWR_IO_FLASH_DEVICE_NOT_IN_RAM
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113 {
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114 extern char flash_query[], flash_query_end[];
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115 CYG_ADDRESS code_len;
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116
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117 // Query the device driver - copy 'query' code to RAM for execution
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118 code_len = (CYG_ADDRESS)&flash_query_end - (CYG_ADDRESS)&flash_query;
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119 _flash_query = (code_fun *)flash_info.work_space;
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120 memcpy(_flash_query, &flash_query, code_len);
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121 }
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122 #else
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123 {
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124 externC code_fun flash_query;
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125 _flash_query = (code_fun*) __anonymizer(&flash_query);
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126 }
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127 #endif
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128
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129 HAL_FLASH_CACHES_OFF(d_cache, i_cache);
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130 (*_flash_query)(data);
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131 HAL_FLASH_CACHES_ON(d_cache, i_cache);
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132 }
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134 int
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135 flash_verify_addr(void *target)
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136 {
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137 if (!flash_info.init) {
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138 return FLASH_ERR_NOT_INIT;
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139 }
174
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140 if (((CYG_ADDRESS)target >= (CYG_ADDRESS)flash_info.start) &&
208
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141 ((CYG_ADDRESS)target <= ( ((CYG_ADDRESS)flash_info.end) - 1) )) {
115
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142 return FLASH_ERR_OK;
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143 } else {
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144 return FLASH_ERR_INVALID;
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145 }
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146 }
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147
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148 int
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149 flash_get_limits(void *target, void **start, void **end)
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150 {
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151 if (!flash_info.init) {
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152 return FLASH_ERR_NOT_INIT;
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153 }
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154 *start = flash_info.start;
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155 *end = flash_info.end;
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156 return FLASH_ERR_OK;
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157 }
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158
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159 int
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160 flash_get_block_info(int *block_size, int *blocks)
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161 {
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162 if (!flash_info.init) {
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163 return FLASH_ERR_NOT_INIT;
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164 }
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165 *block_size = flash_info.block_size;
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166 *blocks = flash_info.blocks;
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167 return FLASH_ERR_OK;
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168 }
157
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169
115
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170 int
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171 flash_erase(void *addr, int len, void **err_addr)
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172 {
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173 unsigned short *block, *end_addr;
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174 int stat = 0;
151
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175 typedef int code_fun(unsigned short *, unsigned int);
115
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176 code_fun *_flash_erase_block;
141
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177 int d_cache, i_cache;
115
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178
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179 if (!flash_info.init) {
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180 return FLASH_ERR_NOT_INIT;
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181 }
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182
174
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183 #ifdef CYGSEM_IO_FLASH_SOFT_WRITE_PROTECT
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184 if (plf_flash_query_soft_wp(addr,len))
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185 return FLASH_ERR_PROTECT;
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186 #endif
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187
160
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188 #ifdef CYGHWR_IO_FLASH_DEVICE_NOT_IN_RAM
154
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189 {
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190 extern char flash_erase_block[], flash_erase_block_end[];
174
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191 CYG_ADDRESS code_len;
115
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192
154
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193 // Copy 'erase' code to RAM for execution
174
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194 code_len = (CYG_ADDRESS)&flash_erase_block_end - (CYG_ADDRESS)&flash_erase_block;
154
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195 _flash_erase_block = (code_fun *)flash_info.work_space;
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196 memcpy(_flash_erase_block, &flash_erase_block, code_len);
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197 }
160
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198 #else
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199 {
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200 externC code_fun flash_erase_block;
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201 _flash_erase_block = (code_fun*) __anonymizer(&flash_erase_block);
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202 }
154
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203 #endif
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204
174
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205 block = (unsigned short *)((CYG_ADDRESS)addr & flash_info.block_mask);
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206 end_addr = (unsigned short *)((CYG_ADDRESS)addr+len);
115
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207
208
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208 /* Check to see if end_addr overflowed */
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209 if( (end_addr < block) && (len > 0) ){
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210 end_addr = (unsigned short *) ((CYG_ADDRESS) flash_info.end - 1);
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211 }
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212
162
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213 (*flash_info.pf)("... Erase from %p-%p: ", (void*)block, (void*)end_addr);
115
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214
154
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215 HAL_FLASH_CACHES_OFF(d_cache, i_cache);
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216 FLASH_Enable(block, end_addr);
115
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217 while (block < end_addr) {
151
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218 // Supply the blocksize for a gross check for erase success
195
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219 int i;
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220 unsigned char *dp;
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221 bool erased = true;
208
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222 unsigned short *tmp_block;
195
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223
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224 dp = (unsigned char *)block;
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225 for (i = 0; i < flash_info.block_size; i++) {
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226 if (*dp++ != (unsigned char)0xFF) {
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227 erased = false;
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228 break;
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229 }
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230 }
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231 if (!erased) {
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232 stat = (*_flash_erase_block)(block, flash_info.block_size);
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233 stat = flash_hwr_map_error(stat);
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234 }
115
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235 if (stat) {
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236 *err_addr = (void *)block;
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237 break;
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238 }
208
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239
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240 // Check to see if block will overflow
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241 tmp_block = block + flash_info.block_size / sizeof(*block);
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242 if(tmp_block < block){
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243 // If block address overflows, set block value to end on this loop
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244 block = end_addr;
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245 }
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246 else{
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247 block = tmp_block;
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248 }
162
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249 (*flash_info.pf)(".");
115
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250 }
156
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251 FLASH_Disable(block, end_addr);
141
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252 HAL_FLASH_CACHES_ON(d_cache, i_cache);
162
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253 (*flash_info.pf)("\n");
115
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254 return (stat);
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255 }
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256
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257 int
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258 flash_program(void *_addr, void *_data, int len, void **err_addr)
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259 {
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260 int stat = 0;
154
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261 int size;
174
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262 typedef int code_fun(void *, void *, int, unsigned long, int);
115
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263 code_fun *_flash_program_buf;
174
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264 unsigned char *addr = (unsigned char *)_addr;
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265 unsigned char *data = (unsigned char *)_data;
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266 CYG_ADDRESS tmp;
141
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267 int d_cache, i_cache;
115
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268
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269 if (!flash_info.init) {
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270 return FLASH_ERR_NOT_INIT;
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271 }
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272
174
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273 #ifdef CYGSEM_IO_FLASH_SOFT_WRITE_PROTECT
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274 if (plf_flash_query_soft_wp(addr,len))
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275 return FLASH_ERR_PROTECT;
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276 #endif
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277
160
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278 #ifdef CYGHWR_IO_FLASH_DEVICE_NOT_IN_RAM
154
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279 {
174
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280 CYG_ADDRESS code_len;
154
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281 extern char flash_program_buf[], flash_program_buf_end[];
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282 // Copy 'program' code to RAM for execution
174
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283 code_len = (CYG_ADDRESS)&flash_program_buf_end - (CYG_ADDRESS)&flash_program_buf;
154
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284 _flash_program_buf = (code_fun *)flash_info.work_space;
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285 memcpy(_flash_program_buf, &flash_program_buf, code_len);
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286 }
160
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287 #else
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288 {
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289 externC code_fun flash_program_buf;
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290 _flash_program_buf = (code_fun*) __anonymizer(&flash_program_buf);
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291 }
154
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292 #endif
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293
162
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294 (*flash_info.pf)("... Program from %p-%p at %p: ", (void*)data,
174
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295 (void*)(((CYG_ADDRESS)data)+len), (void*)addr);
154
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296
141
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297 HAL_FLASH_CACHES_OFF(d_cache, i_cache);
174
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298 FLASH_Enable((unsigned short*)addr, (unsigned short *)(addr+len));
115
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299 while (len > 0) {
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300 size = len;
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301 if (size > flash_info.block_size) size = flash_info.block_size;
154
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302
174
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303 tmp = (CYG_ADDRESS)addr & ~flash_info.block_mask;
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304 if (tmp) {
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305 tmp = flash_info.block_size - tmp;
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306 if (size>tmp) size = tmp;
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307
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308 }
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309
156
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310 stat = (*_flash_program_buf)(addr, data, size,
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311 flash_info.block_mask, flash_info.buffer_size);
115
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312 stat = flash_hwr_map_error(stat);
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313 #ifdef CYGSEM_IO_FLASH_VERIFY_PROGRAM
163
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314 if (0 == stat) // Claims to be OK
195
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315 if (memcmp(addr, data, size) != 0) {
163
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316 stat = 0x0BAD;
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317 (*flash_info.pf)("V");
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318 }
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319 #endif
115
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320 if (stat) {
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321 *err_addr = (void *)addr;
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322 break;
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323 }
162
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324 (*flash_info.pf)(".");
115
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325 len -= size;
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326 addr += size/sizeof(*addr);
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327 data += size/sizeof(*data);
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328 }
174
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329 FLASH_Disable((unsigned short*)addr, (unsigned short *)(addr+len));
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330 HAL_FLASH_CACHES_ON(d_cache, i_cache);
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331 (*flash_info.pf)("\n");
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332 return (stat);
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333 }
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334
177
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335 #ifdef CYGHWR_IO_FLASH_BLOCK_LOCKING
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336
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337 int
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338 flash_lock(void *addr, int len, void **err_addr)
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339 {
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340 unsigned short *block, *end_addr;
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341 int stat = 0;
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342 typedef int code_fun(unsigned short *);
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343 code_fun *_flash_lock_block;
141
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344 int d_cache, i_cache;
119
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345
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346 if (!flash_info.init) {
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347 return FLASH_ERR_NOT_INIT;
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348 }
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349
174
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350 #ifdef CYGSEM_IO_FLASH_SOFT_WRITE_PROTECT
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351 if (plf_flash_query_soft_wp(addr,len))
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352 return FLASH_ERR_PROTECT;
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353 #endif
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354
160
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355 #ifdef CYGHWR_IO_FLASH_DEVICE_NOT_IN_RAM
154
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356 {
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357 extern char flash_lock_block[], flash_lock_block_end[];
174
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358 CYG_ADDRESS code_len;
154
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359 // Copy 'lock' code to RAM for execution
174
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360 code_len = (CYG_ADDRESS)&flash_lock_block_end - (CYG_ADDRESS)&flash_lock_block;
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361 _flash_lock_block = (code_fun *)flash_info.work_space;
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362 memcpy(_flash_lock_block, &flash_lock_block, code_len);
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363 }
160
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364 #else
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365 {
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366 externC code_fun flash_lock_block;
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367 _flash_lock_block = (code_fun*) __anonymizer(&flash_lock_block);
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368 }
154
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369 #endif
119
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370
174
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371 block = (unsigned short *)((CYG_ADDRESS)addr & flash_info.block_mask);
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372 end_addr = (unsigned short *)((CYG_ADDRESS)addr+len);
119
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373
208
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374 /* Check to see if end_addr overflowed */
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375 if( (end_addr < block) && (len > 0) ){
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376 end_addr = (unsigned short *) ((CYG_ADDRESS) flash_info.end - 1);
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377 }
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378
162
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379 (*flash_info.pf)("... Lock from %p-%p: ", block, end_addr);
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380
154
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381 HAL_FLASH_CACHES_OFF(d_cache, i_cache);
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382 FLASH_Enable(block, end_addr);
119
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383 while (block < end_addr) {
208
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384 unsigned short *tmp_block;
119
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385 stat = (*_flash_lock_block)(block);
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386 stat = flash_hwr_map_error(stat);
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387 if (stat) {
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388 *err_addr = (void *)block;
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389 break;
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390 }
208
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391
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392 // Check to see if block will overflow
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393 tmp_block = block + flash_info.block_size / sizeof(*block);
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394 if(tmp_block < block){
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395 // If block address overflows, set block value to end on this loop
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396 block = end_addr;
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397 }
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398 else{
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399 block = tmp_block;
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400 }
162
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401 (*flash_info.pf)(".");
119
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402 }
156
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403 FLASH_Disable(block, end_addr);
141
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404 HAL_FLASH_CACHES_ON(d_cache, i_cache);
162
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405 (*flash_info.pf)("\n");
119
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406 return (stat);
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407 }
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diff changeset
408
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409 int
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410 flash_unlock(void *addr, int len, void **err_addr)
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411 {
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412 unsigned short *block, *end_addr;
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413 int stat = 0;
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414 typedef int code_fun(unsigned short *, int, int);
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415 code_fun *_flash_unlock_block;
141
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416 int d_cache, i_cache;
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417
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418 if (!flash_info.init) {
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419 return FLASH_ERR_NOT_INIT;
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420 }
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421
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422 #ifdef CYGSEM_IO_FLASH_SOFT_WRITE_PROTECT
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423 if (plf_flash_query_soft_wp(addr,len))
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424 return FLASH_ERR_PROTECT;
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425 #endif
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426
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427 #ifdef CYGHWR_IO_FLASH_DEVICE_NOT_IN_RAM
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428 {
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429 extern char flash_unlock_block[], flash_unlock_block_end[];
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430 CYG_ADDRESS code_len;
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431 // Copy 'lock' code to RAM for execution
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432 code_len = (CYG_ADDRESS)&flash_unlock_block_end - (CYG_ADDRESS)&flash_unlock_block;
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433 _flash_unlock_block = (code_fun *)flash_info.work_space;
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434 memcpy(_flash_unlock_block, &flash_unlock_block, code_len);
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435 }
160
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436 #else
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437 {
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438 externC code_fun flash_unlock_block;
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439 _flash_unlock_block = (code_fun*) __anonymizer(&flash_unlock_block);
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440 }
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441 #endif
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442
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443 block = (unsigned short *)((CYG_ADDRESS)addr & flash_info.block_mask);
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444 end_addr = (unsigned short *)((CYG_ADDRESS)addr+len);
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445
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446 /* Check to see if end_addr overflowed */
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447 if( (end_addr < block) && (len > 0) ){
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448 end_addr = (unsigned short *) ((CYG_ADDRESS) flash_info.end - 1);
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449 }
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450
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451 (*flash_info.pf)("... Unlock from %p-%p: ", block, end_addr);
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452
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453 HAL_FLASH_CACHES_OFF(d_cache, i_cache);
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454 FLASH_Enable(block, end_addr);
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455 while (block < end_addr) {
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456 unsigned short *tmp_block;
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457 stat = (*_flash_unlock_block)(block, flash_info.block_size, flash_info.blocks);
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458 stat = flash_hwr_map_error(stat);
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459 if (stat) {
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460 *err_addr = (void *)block;
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461 break;
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462 }
208
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463
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464 tmp_block = block + flash_info.block_size / sizeof(*block);
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465 if(tmp_block < block){
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466 // If block address overflows, set block value to end on this loop
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467 block = end_addr;
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468 }
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469 else{
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470 block = tmp_block;
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471 }
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472 (*flash_info.pf)(".");
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473 }
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474 FLASH_Disable(block, end_addr);
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475 HAL_FLASH_CACHES_ON(d_cache, i_cache);
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476 (*flash_info.pf)("\n");
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477 return (stat);
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478 }
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479 #endif
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480
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481 char *
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482 flash_errmsg(int err)
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483 {
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484 switch (err) {
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485 case FLASH_ERR_OK:
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486 return "No error - operation complete";
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487 case FLASH_ERR_ERASE_SUSPEND:
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488 return "Device is in erase suspend state";
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489 case FLASH_ERR_PROGRAM_SUSPEND:
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490 return "Device is in program suspend state";
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491 case FLASH_ERR_INVALID:
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492 return "Invalid FLASH address";
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493 case FLASH_ERR_ERASE:
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494 return "Error trying to erase";
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495 case FLASH_ERR_LOCK:
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496 return "Error trying to lock/unlock";
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497 case FLASH_ERR_PROGRAM:
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498 return "Error trying to program";
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499 case FLASH_ERR_PROTOCOL:
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500 return "Generic error";
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501 case FLASH_ERR_PROTECT:
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502 return "Device/region is write-protected";
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503 case FLASH_ERR_NOT_INIT:
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504 return "FLASH sub-system not initialized";
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505 case FLASH_ERR_DRV_VERIFY:
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506 return "Data verify failed after operation";
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507 case FLASH_ERR_DRV_TIMEOUT:
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508 return "Driver timed out waiting for device";
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509 case FLASH_ERR_DRV_WRONG_PART:
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510 return "Driver does not support device";
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511 case FLASH_ERR_LOW_VOLTAGE:
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512 return "Device reports low voltage";
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513 default:
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514 return "Unknown error";
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515 }
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516 }
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517
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518 // EOF io/flash/..../flash.c