X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=common%2Fenv_flash.c;h=50ca4ffa5687736ad8e99ca36fb9d8d960e681d7;hb=9023ae305919d0aecb4a22726b9d08c6b08189d7;hp=00792cd38cf4311e9a549846d4da2ba8382e5a67;hpb=9eb468da3fd8753de55ab271d6ff5ed7f36d7ea2;p=karo-tx-uboot.git diff --git a/common/env_flash.c b/common/env_flash.c index 00792cd38c..50ca4ffa56 100644 --- a/common/env_flash.c +++ b/common/env_flash.c @@ -1,5 +1,5 @@ /* - * (C) Copyright 2000-2002 + * (C) Copyright 2000-2010 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH @@ -31,6 +31,8 @@ #include #include #include +#include +#include DECLARE_GLOBAL_DATA_PTR; @@ -44,12 +46,6 @@ DECLARE_GLOBAL_DATA_PTR; #error CONFIG_ENV_SIZE_REDUND should not be less then CONFIG_ENV_SIZE #endif -#ifdef CONFIG_INFERNO -# ifdef CONFIG_ENV_ADDR_REDUND -#error CONFIG_ENV_ADDR_REDUND is not implemented for CONFIG_INFERNO -# endif -#endif - char * env_name_spec = "Flash"; #ifdef ENV_IS_EMBEDDED @@ -57,38 +53,33 @@ char * env_name_spec = "Flash"; extern uchar environment[]; env_t *env_ptr = (env_t *)(&environment[0]); -#ifdef CMD_SAVEENV -/* static env_t *flash_addr = (env_t *)(&environment[0]);-broken on ARM-wd-*/ static env_t *flash_addr = (env_t *)CONFIG_ENV_ADDR; -#endif #else /* ! ENV_IS_EMBEDDED */ env_t *env_ptr = (env_t *)CONFIG_ENV_ADDR; -#ifdef CMD_SAVEENV static env_t *flash_addr = (env_t *)CONFIG_ENV_ADDR; -#endif #endif /* ENV_IS_EMBEDDED */ +#if defined(CMD_SAVEENV) || defined(CONFIG_ENV_ADDR_REDUND) +/* CONFIG_ENV_ADDR is supposed to be on sector boundary */ +static ulong end_addr = CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1; +#endif + #ifdef CONFIG_ENV_ADDR_REDUND static env_t *flash_addr_new = (env_t *)CONFIG_ENV_ADDR_REDUND; -/* CONFIG_ENV_ADDR is supposed to be on sector boundary */ -static ulong end_addr = CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1; +/* CONFIG_ENV_ADDR_REDUND is supposed to be on sector boundary */ static ulong end_addr_new = CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1; - -#define ACTIVE_FLAG 1 -#define OBSOLETE_FLAG 0 #endif /* CONFIG_ENV_ADDR_REDUND */ -extern uchar default_environment[]; -extern int default_environment_size; +extern const uchar default_environment[]; -uchar env_get_char_spec (int index) +uchar env_get_char_spec(int index) { - return ( *((uchar *)(gd->env_addr + index)) ); + return (*((uchar *)(gd->env_addr + index))); } #ifdef CONFIG_ENV_ADDR_REDUND @@ -133,91 +124,97 @@ int env_init(void) gd->env_valid = 2; } - return (0); + return 0; } #ifdef CMD_SAVEENV int saveenv(void) { - char *saved_data = NULL; - int rc = 1; - char flag = OBSOLETE_FLAG, new_flag = ACTIVE_FLAG; + env_t env_new; + ssize_t len; + char *saved_data = NULL; + char *res; + int rc = 1; + char flag = OBSOLETE_FLAG, new_flag = ACTIVE_FLAG; #if CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE - ulong up_data = 0; + ulong up_data = 0; #endif - debug ("Protect off %08lX ... %08lX\n", + debug("Protect off %08lX ... %08lX\n", (ulong)flash_addr, end_addr); - if (flash_sect_protect (0, (ulong)flash_addr, end_addr)) { - goto Done; + if (flash_sect_protect(0, (ulong)flash_addr, end_addr)) { + goto done; } - debug ("Protect off %08lX ... %08lX\n", + debug("Protect off %08lX ... %08lX\n", (ulong)flash_addr_new, end_addr_new); - if (flash_sect_protect (0, (ulong)flash_addr_new, end_addr_new)) { - goto Done; + if (flash_sect_protect(0, (ulong)flash_addr_new, end_addr_new)) { + goto done; } + res = (char *)&env_new.data; + len = hexport_r(&env_htab, '\0', &res, ENV_SIZE); + if (len < 0) { + error("Cannot export environment: errno = %d\n", errno); + goto done; + } + env_new.crc = crc32(0, env_new.data, ENV_SIZE); + env_new.flags = new_flag; + #if CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE up_data = (end_addr_new + 1 - ((long)flash_addr_new + CONFIG_ENV_SIZE)); - debug ("Data to save 0x%x\n", up_data); + debug("Data to save 0x%lX\n", up_data); if (up_data) { if ((saved_data = malloc(up_data)) == NULL) { printf("Unable to save the rest of sector (%ld)\n", up_data); - goto Done; + goto done; } memcpy(saved_data, (void *)((long)flash_addr_new + CONFIG_ENV_SIZE), up_data); - debug ("Data (start 0x%x, len 0x%x) saved at 0x%x\n", - (long)flash_addr_new + CONFIG_ENV_SIZE, - up_data, saved_data); + debug("Data (start 0x%lX, len 0x%lX) saved at 0x%p\n", + (long)flash_addr_new + CONFIG_ENV_SIZE, + up_data, saved_data); } #endif - puts ("Erasing Flash..."); - debug (" %08lX ... %08lX ...", + puts("Erasing Flash..."); + debug(" %08lX ... %08lX ...", (ulong)flash_addr_new, end_addr_new); - if (flash_sect_erase ((ulong)flash_addr_new, end_addr_new)) { - goto Done; + if (flash_sect_erase((ulong)flash_addr_new, end_addr_new)) { + goto done; } - puts ("Writing to Flash... "); - debug (" %08lX ... %08lX ...", + puts("Writing to Flash... "); + debug(" %08lX ... %08lX ...", (ulong)&(flash_addr_new->data), sizeof(env_ptr->data)+(ulong)&(flash_addr_new->data)); - if ((rc = flash_write((char *)env_ptr->data, - (ulong)&(flash_addr_new->data), - sizeof(env_ptr->data))) || - (rc = flash_write((char *)&(env_ptr->crc), - (ulong)&(flash_addr_new->crc), - sizeof(env_ptr->crc))) || + if ((rc = flash_write((char *)&env_new, + (ulong)flash_addr_new, + sizeof(env_new))) || (rc = flash_write(&flag, (ulong)&(flash_addr->flags), - sizeof(flash_addr->flags))) || - (rc = flash_write(&new_flag, - (ulong)&(flash_addr_new->flags), - sizeof(flash_addr_new->flags)))) - { - flash_perror (rc); - goto Done; + sizeof(flash_addr->flags))) ) { + flash_perror(rc); + goto done; } - puts ("done\n"); #if CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE if (up_data) { /* restore the rest of sector */ - debug ("Restoring the rest of data to 0x%x len 0x%x\n", - (long)flash_addr_new + CONFIG_ENV_SIZE, up_data); + debug("Restoring the rest of data to 0x%lX len 0x%lX\n", + (long)flash_addr_new + CONFIG_ENV_SIZE, up_data); if (flash_write(saved_data, (long)flash_addr_new + CONFIG_ENV_SIZE, up_data)) { flash_perror(rc); - goto Done; + goto done; } } #endif + puts("done\n"); + { env_t * etmp = flash_addr; ulong ltmp = end_addr; @@ -230,13 +227,12 @@ int saveenv(void) } rc = 0; -Done: - +done: if (saved_data) - free (saved_data); + free(saved_data); /* try to re-protect */ - (void) flash_sect_protect (1, (ulong)flash_addr, end_addr); - (void) flash_sect_protect (1, (ulong)flash_addr_new, end_addr_new); + (void) flash_sect_protect(1, (ulong)flash_addr, end_addr); + (void) flash_sect_protect(1, (ulong)flash_addr_new, end_addr_new); return rc; } @@ -254,89 +250,93 @@ int env_init(void) gd->env_addr = (ulong)&default_environment[0]; gd->env_valid = 0; - return (0); + return 0; } #ifdef CMD_SAVEENV int saveenv(void) { - int len, rc; - ulong end_addr; - ulong flash_sect_addr; -#if defined(CONFIG_ENV_SECT_SIZE) && (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) - ulong flash_offset; - uchar env_buffer[CONFIG_ENV_SECT_SIZE]; -#else - uchar *env_buffer = (uchar *)env_ptr; -#endif /* CONFIG_ENV_SECT_SIZE */ - int rcode = 0; - -#if defined(CONFIG_ENV_SECT_SIZE) && (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) - - flash_offset = ((ulong)flash_addr) & (CONFIG_ENV_SECT_SIZE-1); - flash_sect_addr = ((ulong)flash_addr) & ~(CONFIG_ENV_SECT_SIZE-1); - - debug ( "copy old content: " - "sect_addr: %08lX env_addr: %08lX offset: %08lX\n", - flash_sect_addr, (ulong)flash_addr, flash_offset); - - /* copy old contents to temporary buffer */ - memcpy (env_buffer, (void *)flash_sect_addr, CONFIG_ENV_SECT_SIZE); - - /* copy current environment to temporary buffer */ - memcpy ((uchar *)((unsigned long)env_buffer + flash_offset), - env_ptr, - CONFIG_ENV_SIZE); + env_t env_new; + ssize_t len; + int rc = 1; + char *res; + char *saved_data = NULL; +#if CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE + ulong up_data = 0; - len = CONFIG_ENV_SECT_SIZE; -#else - flash_sect_addr = (ulong)flash_addr; - len = CONFIG_ENV_SIZE; + up_data = (end_addr + 1 - ((long)flash_addr + CONFIG_ENV_SIZE)); + debug("Data to save 0x%lx\n", up_data); + if (up_data) { + if ((saved_data = malloc(up_data)) == NULL) { + printf("Unable to save the rest of sector (%ld)\n", + up_data); + goto done; + } + memcpy(saved_data, + (void *)((long)flash_addr + CONFIG_ENV_SIZE), up_data); + debug("Data (start 0x%lx, len 0x%lx) saved at 0x%lx\n", + (ulong)flash_addr + CONFIG_ENV_SIZE, + up_data, + (ulong)saved_data); + } #endif /* CONFIG_ENV_SECT_SIZE */ -#ifndef CONFIG_INFERNO - end_addr = flash_sect_addr + len - 1; -#else - /* this is the last sector, and the size is hardcoded here */ - /* otherwise we will get stack problems on loading 128 KB environment */ - end_addr = flash_sect_addr + 0x20000 - 1; -#endif + debug("Protect off %08lX ... %08lX\n", + (ulong)flash_addr, end_addr); - debug ("Protect off %08lX ... %08lX\n", - (ulong)flash_sect_addr, end_addr); + if (flash_sect_protect(0, (long)flash_addr, end_addr)) + goto done; - if (flash_sect_protect (0, flash_sect_addr, end_addr)) - return 1; + res = (char *)&env_new.data; + len = hexport_r(&env_htab, '\0', &res, ENV_SIZE); + if (len < 0) { + error("Cannot export environment: errno = %d\n", errno); + goto done; + } + env_new.crc = crc32(0, env_new.data, ENV_SIZE); - puts ("Erasing Flash..."); - if (flash_sect_erase (flash_sect_addr, end_addr)) - return 1; + puts("Erasing Flash..."); + if (flash_sect_erase((long)flash_addr, end_addr)) + goto done; - puts ("Writing to Flash... "); - rc = flash_write((char *)env_buffer, flash_sect_addr, len); + puts("Writing to Flash... "); + rc = flash_write((char *)&env_new, (long)flash_addr, CONFIG_ENV_SIZE); if (rc != 0) { - flash_perror (rc); - rcode = 1; - } else { - puts ("done\n"); + flash_perror(rc); + goto done; } - +#if CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE + if (up_data) { /* restore the rest of sector */ + debug("Restoring the rest of data to 0x%lx len 0x%lx\n", + (ulong)flash_addr + CONFIG_ENV_SIZE, up_data); + if (flash_write(saved_data, + (long)flash_addr + CONFIG_ENV_SIZE, + up_data)) { + flash_perror(rc); + goto done; + } + } +#endif + puts("done\n"); + rc = 0; +done: + if (saved_data) + free(saved_data); /* try to re-protect */ - (void) flash_sect_protect (1, flash_sect_addr, end_addr); - return rcode; + (void) flash_sect_protect(1, (long)flash_addr, end_addr); + return rc; } #endif /* CMD_SAVEENV */ #endif /* CONFIG_ENV_ADDR_REDUND */ -void env_relocate_spec (void) +void env_relocate_spec(void) { -#if !defined(ENV_IS_EMBEDDED) || defined(CONFIG_ENV_ADDR_REDUND) #ifdef CONFIG_ENV_ADDR_REDUND if (gd->env_addr != (ulong)&(flash_addr->data)) { - env_t * etmp = flash_addr; + env_t *etmp = flash_addr; ulong ltmp = end_addr; flash_addr = flash_addr_new; @@ -352,11 +352,11 @@ void env_relocate_spec (void) char flag = OBSOLETE_FLAG; gd->env_valid = 2; - flash_sect_protect (0, (ulong)flash_addr_new, end_addr_new); + flash_sect_protect(0, (ulong)flash_addr_new, end_addr_new); flash_write(&flag, (ulong)&(flash_addr_new->flags), sizeof(flash_addr_new->flags)); - flash_sect_protect (1, (ulong)flash_addr_new, end_addr_new); + flash_sect_protect(1, (ulong)flash_addr_new, end_addr_new); } if (flash_addr->flags != ACTIVE_FLAG && @@ -364,19 +364,17 @@ void env_relocate_spec (void) char flag = ACTIVE_FLAG; gd->env_valid = 2; - flash_sect_protect (0, (ulong)flash_addr, end_addr); + flash_sect_protect(0, (ulong)flash_addr, end_addr); flash_write(&flag, (ulong)&(flash_addr->flags), sizeof(flash_addr->flags)); - flash_sect_protect (1, (ulong)flash_addr, end_addr); + flash_sect_protect(1, (ulong)flash_addr, end_addr); } if (gd->env_valid == 2) puts ("*** Warning - some problems detected " "reading environment; recovered successfully\n\n"); #endif /* CONFIG_ENV_ADDR_REDUND */ -#ifdef CMD_SAVEENV - memcpy (env_ptr, (void*)flash_addr, CONFIG_ENV_SIZE); -#endif -#endif /* ! ENV_IS_EMBEDDED || CONFIG_ENV_ADDR_REDUND */ + + env_import((char *)flash_addr, 1); }