X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=common%2Fenv_flash.c;h=d4a0e18c3d43b0e8d87156893049bddd992cad0c;hb=12aeca6d4dfb76d8c1087f6fdf5a7f8e7aff0a45;hp=b860c48db2475e707713745d495665d391de5fcb;hpb=18304f7675e84252965b4e24cba279071f1da472;p=karo-tx-uboot.git diff --git a/common/env_flash.c b/common/env_flash.c index b860c48db2..d4a0e18c3d 100644 --- a/common/env_flash.c +++ b/common/env_flash.c @@ -1,27 +1,11 @@ /* - * (C) Copyright 2000-2002 + * (C) Copyright 2000-2010 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH * Andreas Heppel - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * SPDX-License-Identifier: GPL-2.0+ */ /* #define DEBUG */ @@ -31,68 +15,50 @@ #include #include #include +#include +#include DECLARE_GLOBAL_DATA_PTR; #if defined(CONFIG_CMD_SAVEENV) && defined(CONFIG_CMD_FLASH) #define CMD_SAVEENV #elif defined(CONFIG_ENV_ADDR_REDUND) -#error Cannot use CONFIG_ENV_ADDR_REDUND without CONFIG_CMD_SAVEENV & CONFIG_CMD_FLASH +#error CONFIG_ENV_ADDR_REDUND must have CONFIG_CMD_SAVEENV & CONFIG_CMD_FLASH #endif -#if defined(CONFIG_ENV_SIZE_REDUND) && (CONFIG_ENV_SIZE_REDUND < CONFIG_ENV_SIZE) +#if defined(CONFIG_ENV_SIZE_REDUND) && \ + (CONFIG_ENV_SIZE_REDUND < CONFIG_ENV_SIZE) #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"; +char *env_name_spec = "Flash"; #ifdef ENV_IS_EMBEDDED +env_t *env_ptr = &environment; -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[]; - - -uchar env_get_char_spec (int index) -{ - return ( *((uchar *)(gd->env_addr + index)) ); -} #ifdef CONFIG_ENV_ADDR_REDUND - -int env_init(void) +int env_init(void) { int crc1_ok = 0, crc2_ok = 0; @@ -103,122 +69,123 @@ int env_init(void) ulong addr1 = (ulong)&(flash_addr->data); ulong addr2 = (ulong)&(flash_addr_new->data); - crc1_ok = (crc32(0, flash_addr->data, ENV_SIZE) == flash_addr->crc); - crc2_ok = (crc32(0, flash_addr_new->data, ENV_SIZE) == flash_addr_new->crc); - - if (crc1_ok && ! crc2_ok) { - gd->env_addr = addr1; - gd->env_valid = 1; - } else if (! crc1_ok && crc2_ok) { - gd->env_addr = addr2; - gd->env_valid = 1; - } else if (! crc1_ok && ! crc2_ok) { - gd->env_addr = addr_default; - gd->env_valid = 0; + crc1_ok = crc32(0, flash_addr->data, ENV_SIZE) == flash_addr->crc; + crc2_ok = + crc32(0, flash_addr_new->data, ENV_SIZE) == flash_addr_new->crc; + + if (crc1_ok && !crc2_ok) { + gd->env_addr = addr1; + gd->env_valid = 1; + } else if (!crc1_ok && crc2_ok) { + gd->env_addr = addr2; + gd->env_valid = 1; + } else if (!crc1_ok && !crc2_ok) { + gd->env_addr = addr_default; + gd->env_valid = 0; } else if (flag1 == ACTIVE_FLAG && flag2 == OBSOLETE_FLAG) { - gd->env_addr = addr1; - gd->env_valid = 1; + gd->env_addr = addr1; + gd->env_valid = 1; } else if (flag1 == OBSOLETE_FLAG && flag2 == ACTIVE_FLAG) { - gd->env_addr = addr2; - gd->env_valid = 1; + gd->env_addr = addr2; + gd->env_valid = 1; } else if (flag1 == flag2) { - gd->env_addr = addr1; - gd->env_valid = 2; + gd->env_addr = addr1; + gd->env_valid = 2; } else if (flag1 == 0xFF) { - gd->env_addr = addr1; - gd->env_valid = 2; + gd->env_addr = addr1; + gd->env_valid = 2; } else if (flag2 == 0xFF) { - gd->env_addr = addr2; - gd->env_valid = 2; + gd->env_addr = addr2; + 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 *res, *saved_data = NULL; + char flag = OBSOLETE_FLAG, new_flag = ACTIVE_FLAG; + int rc = 1; #if CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE - ulong up_data = 0; + ulong up_data = 0; #endif - debug ("Protect off %08lX ... %08lX\n", - (ulong)flash_addr, end_addr); + 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', 0, &res, ENV_SIZE, 0, NULL); + 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); + up_data = end_addr_new + 1 - ((long)flash_addr_new + CONFIG_ENV_SIZE); + debug("Data to save 0x%lX\n", up_data); if (up_data) { - if ((saved_data = malloc(up_data)) == NULL) { + saved_data = malloc(up_data); + if (saved_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); + (void *)((long)flash_addr_new + CONFIG_ENV_SIZE), + up_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 ...", - (ulong)flash_addr_new, end_addr_new); + 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))) || - (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; - } - puts ("done\n"); + sizeof(env_ptr->data) + (ulong)&(flash_addr_new->data)); + rc = flash_write((char *)&env_new, (ulong)flash_addr_new, + sizeof(env_new)); + if (rc) + goto perror; + + rc = flash_write(&flag, (ulong)&(flash_addr->flags), + sizeof(flash_addr->flags)); + if (rc) + goto perror; #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; - } + up_data)) + goto perror; } #endif + puts("done\n"); + { - env_t * etmp = flash_addr; + env_t *etmp = flash_addr; ulong ltmp = end_addr; flash_addr = flash_addr_new; @@ -229,13 +196,15 @@ int saveenv(void) } rc = 0; -Done: - + goto done; +perror: + flash_perror(rc); +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); + flash_sect_protect(1, (ulong)flash_addr, end_addr); + flash_sect_protect(1, (ulong)flash_addr_new, end_addr_new); return rc; } @@ -243,99 +212,100 @@ Done: #else /* ! CONFIG_ENV_ADDR_REDUND */ -int env_init(void) +int env_init(void) { if (crc32(0, env_ptr->data, ENV_SIZE) == env_ptr->crc) { - gd->env_addr = (ulong)&(env_ptr->data); - gd->env_valid = 1; - return(0); + gd->env_addr = (ulong)&(env_ptr->data); + gd->env_valid = 1; + return 0; } - gd->env_addr = (ulong)&default_environment[0]; - gd->env_valid = 0; - return (0); + gd->env_addr = (ulong)&default_environment[0]; + gd->env_valid = 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, *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) { + saved_data = malloc(up_data); + if (saved_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); + + if (flash_sect_protect(0, (long)flash_addr, end_addr)) + goto done; - debug ("Protect off %08lX ... %08lX\n", - (ulong)flash_sect_addr, end_addr); + res = (char *)&env_new.data; + len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, 0, NULL); + if (len < 0) { + error("Cannot export environment: errno = %d\n", errno); + goto done; + } + env_new.crc = crc32(0, env_new.data, ENV_SIZE); - if (flash_sect_protect (0, flash_sect_addr, end_addr)) - return 1; + puts("Erasing Flash..."); + if (flash_sect_erase((long)flash_addr, end_addr)) + goto done; - puts ("Erasing Flash..."); - if (flash_sect_erase (flash_sect_addr, end_addr)) - return 1; + puts("Writing to Flash... "); + rc = flash_write((char *)&env_new, (long)flash_addr, CONFIG_ENV_SIZE); + if (rc != 0) + goto perror; - puts ("Writing to Flash... "); - rc = flash_write((char *)env_buffer, flash_sect_addr, len); - if (rc != 0) { - flash_perror (rc); - rcode = 1; - } else { - 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%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)) + goto perror; } - +#endif + puts("done\n"); + rc = 0; + goto done; +perror: + flash_perror(rc); +done: + if (saved_data) + free(saved_data); /* try to re-protect */ - (void) flash_sect_protect (1, flash_sect_addr, end_addr); - return rcode; + 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; @@ -346,16 +316,15 @@ void env_relocate_spec (void) } if (flash_addr_new->flags != OBSOLETE_FLAG && - crc32(0, flash_addr_new->data, ENV_SIZE) == - flash_addr_new->crc) { + crc32(0, flash_addr_new->data, ENV_SIZE) == flash_addr_new->crc) { 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 && @@ -363,19 +332,17 @@ 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"); + 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); }