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comparison packages/redboot/current/src/flash.c @ 172:cd45958b28ff

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Merge from eCos master repository on 2001-07-20-10:24:43-BST
author jlarmour
date Fri, 20 Jul 2001 10:23:16 +0000
parents 42f843b391aa
children 38892b97b685
comparison
equal deleted inserted replaced
171:42f843b391aa 172:cd45958b28ff
144 144
145 // Local data used by these routines 145 // Local data used by these routines
146 static void *flash_start, *flash_end; 146 static void *flash_start, *flash_end;
147 static int block_size, blocks; 147 static int block_size, blocks;
148 static void *fis_work_block; 148 static void *fis_work_block;
149 static int fisdir_size; // Size of FIS directory. Note: zero if FIS not enabled
150 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
151 static void *cfg_base; // Location in Flash of config data
152 static int cfg_size; // Length of config data - rounded to Flash block size
153 #endif
149 154
150 static void 155 static void
151 fis_usage(char *why) 156 fis_usage(char *why)
152 { 157 {
153 printf("*** invalid 'fis' command: %s\n", why); 158 printf("*** invalid 'fis' command: %s\n", why);
177 fis_init(int argc, char *argv[]) 182 fis_init(int argc, char *argv[])
178 { 183 {
179 int stat; 184 int stat;
180 struct fis_image_desc *img; 185 struct fis_image_desc *img;
181 void *fis_base, *err_addr; 186 void *fis_base, *err_addr;
182 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
183 void *cfg_base;
184 #endif
185 bool full_init = false; 187 bool full_init = false;
186 struct option_info opts[1]; 188 struct option_info opts[1];
187 unsigned long redboot_image_size, redboot_flash_start; 189 unsigned long redboot_image_size, redboot_flash_start;
188 190
189 init_opts(&opts[0], 'f', false, OPTION_ARG_TYPE_FLG, 191 init_opts(&opts[0], 'f', false, OPTION_ARG_TYPE_FLG,
247 #endif 249 #endif
248 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG 250 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
249 // And a descriptor for the configuration data 251 // And a descriptor for the configuration data
250 memset(img, 0, sizeof(*img)); 252 memset(img, 0, sizeof(*img));
251 strcpy(img->name, "RedBoot config"); 253 strcpy(img->name, "RedBoot config");
252 cfg_base = (void *)((unsigned long)flash_end - (2*block_size));
253 img->flash_base = (unsigned long)cfg_base; 254 img->flash_base = (unsigned long)cfg_base;
254 img->mem_base = (unsigned long)cfg_base; 255 img->mem_base = (unsigned long)cfg_base;
255 img->size = block_size; 256 img->size = cfg_size;
256 img++; 257 img++;
257 #endif 258 #endif
258 // And a descriptor for the descriptor table itself 259 // And a descriptor for the descriptor table itself
259 memset(img, 0, sizeof(*img)); 260 memset(img, 0, sizeof(*img));
260 strcpy(img->name, "FIS directory"); 261 strcpy(img->name, "FIS directory");
1028 } 1029 }
1029 flash_get_limits((void *)0, (void **)&flash_start, (void **)&flash_end); 1030 flash_get_limits((void *)0, (void **)&flash_start, (void **)&flash_end);
1030 flash_get_block_info(&block_size, &blocks); 1031 flash_get_block_info(&block_size, &blocks);
1031 fis_work_block = (unsigned char *)(workspace_end-FLASH_MIN_WORKSPACE-block_size); 1032 fis_work_block = (unsigned char *)(workspace_end-FLASH_MIN_WORKSPACE-block_size);
1032 workspace_end = fis_work_block; 1033 workspace_end = fis_work_block;
1033 _flash_info(); 1034 fisdir_size = block_size;
1034 } 1035 }
1035 return true; 1036 return true;
1036 } 1037 }
1038
1039 #ifndef CYGOPT_REDBOOT_FLASH_CONFIG
1040 RedBoot_init(do_flash_init, RedBoot_INIT_FIRST);
1041 #endif
1037 1042
1038 static void 1043 static void
1039 do_fis(int argc, char *argv[]) 1044 do_fis(int argc, char *argv[])
1040 { 1045 {
1041 struct cmd *cmd; 1046 struct cmd *cmd;
1605 // 1610 //
1606 void 1611 void
1607 flash_write_config(void) 1612 flash_write_config(void)
1608 { 1613 {
1609 int stat; 1614 int stat;
1610 void *cfg_base, *err_addr; 1615 void *err_addr;
1611 1616
1612 config.len = sizeof(config); 1617 config.len = sizeof(config);
1613 config.key1 = CONFIG_KEY1; 1618 config.key1 = CONFIG_KEY1;
1614 config.key2 = CONFIG_KEY2; 1619 config.key2 = CONFIG_KEY2;
1615 config.cksum = crc32((unsigned char *)&config, sizeof(config)-sizeof(config.cksum)); 1620 config.cksum = crc32((unsigned char *)&config, sizeof(config)-sizeof(config.cksum));
1616 cfg_base = (void *)((unsigned long)flash_end - (2*block_size));
1617 if (verify_action("Update RedBoot non-volatile configuration")) { 1621 if (verify_action("Update RedBoot non-volatile configuration")) {
1618 #ifdef CYGSEM_REDBOOT_FLASH_LOCK_SPECIAL 1622 #ifdef CYGSEM_REDBOOT_FLASH_LOCK_SPECIAL
1619 // Insure [quietly] that the config page is unlocked before trying to update 1623 // Insure [quietly] that the config page is unlocked before trying to update
1620 flash_unlock((void *)cfg_base, block_size, (void **)&err_addr); 1624 flash_unlock((void *)cfg_base, cfg_size, (void **)&err_addr);
1621 #endif 1625 #endif
1622 if ((stat = flash_erase(cfg_base, block_size, (void **)&err_addr)) != 0) { 1626 if ((stat = flash_erase(cfg_base, cfg_size, (void **)&err_addr)) != 0) {
1623 printf(" initialization failed %p: 0x%x(%s)\n", err_addr, stat, flash_errmsg(stat)); 1627 printf(" initialization failed %p: 0x%x(%s)\n", err_addr, stat, flash_errmsg(stat));
1624 } else { 1628 } else {
1625 if ((stat = flash_program(cfg_base, (void *)&config, 1629 if ((stat = flash_program(cfg_base, (void *)&config,
1626 sizeof(config), (void **)&err_addr)) != 0) { 1630 sizeof(config), (void **)&err_addr)) != 0) {
1627 printf("Error writing config data at %p: 0x%x(%s)\n", 1631 printf("Error writing config data at %p: 0x%x(%s)\n",
1628 err_addr, stat, flash_errmsg(stat)); 1632 err_addr, stat, flash_errmsg(stat));
1629 } 1633 }
1630 } 1634 }
1631 #ifdef CYGSEM_REDBOOT_FLASH_LOCK_SPECIAL 1635 #ifdef CYGSEM_REDBOOT_FLASH_LOCK_SPECIAL
1632 // Insure [quietly] that the config data is locked after the update 1636 // Insure [quietly] that the config data is locked after the update
1633 flash_lock((void *)cfg_base, block_size, (void **)&err_addr); 1637 flash_lock((void *)cfg_base, cfg_size, (void **)&err_addr);
1634 #endif 1638 #endif
1635 } 1639 }
1636 } 1640 }
1637 1641
1638 // 1642 //
1822 // values for later use. 1826 // values for later use.
1823 // 1827 //
1824 static void 1828 static void
1825 load_flash_config(void) 1829 load_flash_config(void)
1826 { 1830 {
1827 void *cfg_base;
1828 bool use_boot_script; 1831 bool use_boot_script;
1829 1832
1830 config_ok = false; 1833 config_ok = false;
1831 script = (unsigned char *)0; 1834 script = (unsigned char *)0;
1832 if (!do_flash_init()) return; 1835 if (!do_flash_init()) return;
1833 cfg_base = (void *)((unsigned long)flash_end - (2*block_size)); 1836 #define _roundup(n,s) ((((n)+(s-1))/s)*s)
1837 cfg_size = (block_size > sizeof(config)) ? sizeof(config) :
1838 _roundup(sizeof(config), block_size);
1839 cfg_base = (void *)((unsigned long)flash_end - (cfg_size+fisdir_size));
1834 memcpy(&config, cfg_base, sizeof(config)); 1840 memcpy(&config, cfg_base, sizeof(config));
1835 if ((crc32((unsigned char *)&config, sizeof(config)-sizeof(config.cksum)) != config.cksum) || 1841 if ((crc32((unsigned char *)&config, sizeof(config)-sizeof(config.cksum)) != config.cksum) ||
1836 (config.key1 != CONFIG_KEY1)|| (config.key2 != CONFIG_KEY2)) { 1842 (config.key1 != CONFIG_KEY1)|| (config.key2 != CONFIG_KEY2)) {
1837 printf("FLASH configuration checksum error or invalid key\n"); 1843 printf("FLASH configuration checksum error or invalid key\n");
1838 config_init(); 1844 config_init();