diff options
Diffstat (limited to 'common')
| -rw-r--r-- | common/cmd_nvedit.c | 668 | ||||
| -rw-r--r-- | common/command.c | 3 | ||||
| -rw-r--r-- | common/dlmalloc.c | 25 | ||||
| -rw-r--r-- | common/env_common.c | 128 | ||||
| -rw-r--r-- | common/env_dataflash.c | 114 | ||||
| -rw-r--r-- | common/env_eeprom.c | 85 | ||||
| -rw-r--r-- | common/env_flash.c | 245 | ||||
| -rw-r--r-- | common/env_mgdisk.c | 33 | ||||
| -rw-r--r-- | common/env_nand.c | 188 | ||||
| -rw-r--r-- | common/env_nowhere.c | 11 | ||||
| -rw-r--r-- | common/env_nvram.c | 46 | ||||
| -rw-r--r-- | common/env_onenand.c | 65 | ||||
| -rw-r--r-- | common/env_sf.c | 132 |
13 files changed, 1066 insertions, 677 deletions
diff --git a/common/cmd_nvedit.c b/common/cmd_nvedit.c index 74a5069..c3d63b8 100644 --- a/common/cmd_nvedit.c +++ b/common/cmd_nvedit.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 <www.elinos.com> @@ -24,27 +24,26 @@ * MA 02111-1307 USA */ -/************************************************************************** - * +/* * Support for persistent environment data * - * The "environment" is stored as a list of '\0' terminated - * "name=value" strings. The end of the list is marked by a double - * '\0'. New entries are always added at the end. Deleting an entry - * shifts the remaining entries to the front. Replacing an entry is a - * combination of deleting the old value and adding the new one. - * - * The environment is preceeded by a 32 bit CRC over the data part. + * The "environment" is stored on external storage as a list of '\0' + * terminated "name=value" strings. The end of the list is marked by + * a double '\0'. The environment is preceeded by a 32 bit CRC over + * the data part and, in case of redundant environment, a byte of + * flags. * - ************************************************************************** + * This linearized representation will also be used before + * relocation, i. e. as long as we don't have a full C runtime + * environment. After that, we use a hash table. */ #include <common.h> #include <command.h> #include <environment.h> -#if defined(CONFIG_CMD_EDITENV) +#include <search.h> +#include <errno.h> #include <malloc.h> -#endif #include <watchdog.h> #include <serial.h> #include <linux/stddef.h> @@ -72,8 +71,10 @@ SPI_FLASH|MG_DISK|NVRAM|MMC|NOWHERE} #define XMK_STR(x) #x #define MK_STR(x) XMK_STR(x) -/************************************************************************ -************************************************************************/ +/* + * Maximum expected input data size for import command + */ +#define MAX_ENV_SIZE (1 << 20) /* 1 MiB */ /* * Table with supported baudrates (defined in config_xyz.h) @@ -82,7 +83,7 @@ static const unsigned long baudrate_table[] = CONFIG_SYS_BAUDRATE_TABLE; #define N_BAUDRATES (sizeof(baudrate_table) / sizeof(baudrate_table[0])) /* - * This variable is incremented on each do_setenv (), so it can + * This variable is incremented on each do_env_set(), so it can * be used via get_env_id() as an indication, if the environment * has changed or not. So it is possible to reread an environment * variable only if the environment was changed ... done so for @@ -94,61 +95,51 @@ int get_env_id (void) { return env_id; } -/************************************************************************ - * Command interface: print one or all environment variables - */ /* - * state 0: finish printing this string and return (matched!) - * state 1: no matching to be done; print everything - * state 2: continue searching for matched name + * Command interface: print one or all environment variables + * + * Returns 0 in case of error, or length of printed string */ -static int printenv(char *name, int state) +static int env_print(char *name) { - int i, j; - char c, buf[17]; - - i = 0; - buf[16] = '\0'; - - while (state && env_get_char(i) != '\0') { - if (state == 2 && envmatch((uchar *)name, i) >= 0) - state = 0; - - j = 0; - do { - buf[j++] = c = env_get_char(i++); - if (j == sizeof(buf) - 1) { - if (state <= 1) - puts(buf); - j = 0; - } - } while (c != '\0'); + char *res = NULL; + size_t len; + + if (name) { /* print a single name */ + ENTRY e, *ep; + + e.key = name; + e.data = NULL; + ep = hsearch (e, FIND); + if (ep == NULL) + return 0; + len = printf ("%s=%s\n", ep->key, ep->data); + return len; + } - if (state <= 1) { - if (j) - puts(buf); - putc('\n'); - } + /* print whole list */ + len = hexport('\n', &res, 0); - if (ctrlc()) - return -1; + if (len > 0) { + puts(res); + free(res); + return len; } - if (state == 0) - i = 0; - return i; + /* should never happen */ + return 0; } -int do_printenv (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +int do_env_print (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { int i; int rcode = 0; if (argc == 1) { /* print all env vars */ - rcode = printenv(NULL, 1); - if (rcode < 0) + rcode = env_print(NULL); + if (!rcode) return 1; printf("\nEnvironment size: %d/%ld bytes\n", rcode, (ulong)ENV_SIZE); @@ -157,9 +148,9 @@ int do_printenv (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) /* print selected env vars */ for (i = 1; i < argc; ++i) { - char *name = argv[i]; - if (printenv(name, 2)) { - printf("## Error: \"%s\" not defined\n", name); + int rc = env_print(argv[i]); + if (!rc) { + printf("## Error: \"%s\" not defined\n", argv[i]); ++rcode; } } @@ -167,25 +158,18 @@ int do_printenv (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) return rcode; } -/************************************************************************ +/* * Set a new environment variable, * or replace or delete an existing one. - * - * This function will ONLY work with a in-RAM copy of the environment */ -int _do_setenv (int flag, int argc, char * const argv[]) +int _do_env_set (int flag, int argc, char * const argv[]) { - int i, len, oldval; + bd_t *bd = gd->bd; + int i, len; int console = -1; - uchar *env, *nxt = NULL; - char *name; - bd_t *bd = gd->bd; - - uchar *env_data = env_get_addr(0); - - if (!env_data) /* need copy in RAM */ - return 1; + char *name, *value, *s; + ENTRY e, *ep; name = argv[1]; @@ -198,13 +182,9 @@ int _do_setenv (int flag, int argc, char * const argv[]) /* * search if variable with this name already exists */ - oldval = -1; - for (env=env_data; *env; env=nxt+1) { - for (nxt=env; *nxt; ++nxt) - ; - if ((oldval = envmatch((uchar *)name, env-env_data)) >= 0) - break; - } + e.key = name; + e.data = NULL; + ep = hsearch (e, FIND); /* Check for console redirection */ if (strcmp(name,"stdin") == 0) { @@ -238,31 +218,25 @@ int _do_setenv (int flag, int argc, char * const argv[]) } /* - * Delete any existing definition + * Some variables like "ethaddr" and "serial#" can be set only + * once and cannot be deleted; also, "ver" is readonly. */ - if (oldval >= 0) { + if (ep) { /* variable exists */ #ifndef CONFIG_ENV_OVERWRITE - - /* - * Ethernet Address and serial# can be set only once, - * ver is readonly. - */ - if ( - (strcmp (name, "serial#") == 0) || + if ((strcmp (name, "serial#") == 0) || ((strcmp (name, "ethaddr") == 0) #if defined(CONFIG_OVERWRITE_ETHADDR_ONCE) && defined(CONFIG_ETHADDR) - && (strcmp ((char *)env_get_addr(oldval),MK_STR(CONFIG_ETHADDR)) != 0) + && (strcmp (ep->data,MK_STR(CONFIG_ETHADDR)) != 0) #endif /* CONFIG_OVERWRITE_ETHADDR_ONCE && CONFIG_ETHADDR */ ) ) { printf ("Can't overwrite \"%s\"\n", name); return 1; } #endif - /* * Switch to new baudrate if new baudrate is supported */ - if (strcmp(argv[1],"baudrate") == 0) { + if (strcmp(name,"baudrate") == 0) { int baudrate = simple_strtoul(argv[2], NULL, 10); int i; for (i=0; i<N_BAUDRATES; ++i) { @@ -289,75 +263,50 @@ int _do_setenv (int flag, int argc, char * const argv[]) break; } } - - if (*++nxt == '\0') { - if (env > env_data) { - env--; - } else { - *env = '\0'; - } - } else { - for (;;) { - *env = *nxt++; - if ((*env == '\0') && (*nxt == '\0')) - break; - ++env; - } - } - *++env = '\0'; } /* Delete only ? */ if ((argc < 3) || argv[2] == NULL) { - env_crc_update (); - return 0; + int rc = hdelete(name); + return !rc; } /* - * Append new definition at the end + * Insert / replace new value */ - for (env=env_data; *env || *(env+1); ++env) - ; - if (env > env_data) - ++env; - /* - * Overflow when: - * "name" + "=" + "val" +"\0\0" > ENV_SIZE - (env-env_data) - */ - len = strlen(name) + 2; - /* add '=' for first arg, ' ' for all others */ - for (i=2; i<argc; ++i) { + for (i=2,len=0; i<argc; ++i) { len += strlen(argv[i]) + 1; } - if (len > (&env_data[ENV_SIZE]-env)) { - printf ("## Error: environment overflow, \"%s\" deleted\n", name); + if ((value = malloc(len)) == NULL) { + printf("## Can't malloc %d bytes\n", len); return 1; } - while ((*env = *name++) != '\0') - env++; - for (i=2; i<argc; ++i) { - char *val = argv[i]; + for (i=2,s=value; i<argc; ++i) { + char *v = argv[i]; - *env = (i==2) ? '=' : ' '; - while ((*++env = *val++) != '\0') + while ((*s++ = *v++) != '\0') ; + *(s-1) = ' '; + } + if (s != value) + *--s = '\0'; + + e.key = name; + e.data = value; + ep = hsearch(e, ENTER); + free(value); + if (!ep) { + printf("## Error inserting \"%s\" variable, errno=%d\n", + name, errno); + return 1; } - - /* end is marked with double '\0' */ - *++env = '\0'; - - /* Update CRC */ - env_crc_update (); /* * Some variables should be updated when the corresponding - * entry in the enviornment is changed + * entry in the environment is changed */ - if (strcmp(argv[1],"ethaddr") == 0) - return 0; - - if (strcmp(argv[1],"ipaddr") == 0) { + if (strcmp(name,"ipaddr") == 0) { char *s = argv[2]; /* always use only one arg */ char *e; unsigned long addr; @@ -370,13 +319,12 @@ int _do_setenv (int flag, int argc, char * const argv[]) } bd->bi_ip_addr = htonl(addr); return 0; - } - if (strcmp(argv[1],"loadaddr") == 0) { + } else if (strcmp(argv[1],"loadaddr") == 0) { load_addr = simple_strtoul(argv[2], NULL, 16); return 0; } #if defined(CONFIG_CMD_NET) - if (strcmp(argv[1],"bootfile") == 0) { + else if (strcmp(argv[1],"bootfile") == 0) { copy_filename (BootFile, argv[2], sizeof(BootFile)); return 0; } @@ -388,30 +336,29 @@ int setenv (char *varname, char *varvalue) { char * const argv[4] = { "setenv", varname, varvalue, NULL }; if ((varvalue == NULL) || (varvalue[0] == '\0')) - return _do_setenv (0, 2, argv); + return _do_env_set(0, 2, argv); else - return _do_setenv (0, 3, argv); + return _do_env_set(0, 3, argv); } -int do_setenv (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +int do_env_set (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { if (argc < 2) return cmd_usage(cmdtp); - return _do_setenv (flag, argc, argv); + return _do_env_set(flag, argc, argv); } -/************************************************************************ +/* * Prompt for environment variable */ - #if defined(CONFIG_CMD_ASKENV) -int do_askenv ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +int do_env_ask ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { extern char console_buffer[CONFIG_SYS_CBSIZE]; char message[CONFIG_SYS_CBSIZE]; int size = CONFIG_SYS_CBSIZE - 1; - int len; + int i, len, pos; char *local_args[4]; local_args[0] = argv[0]; @@ -419,38 +366,30 @@ int do_askenv ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) local_args[2] = NULL; local_args[3] = NULL; - if (argc < 2) - return cmd_usage(cmdtp); - /* Check the syntax */ switch (argc) { case 1: return cmd_usage(cmdtp); - case 2: /* askenv envname */ - sprintf (message, "Please enter '%s':", argv[1]); + case 2: /* env_ask envname */ + sprintf(message, "Please enter '%s':", argv[1]); break; - case 3: /* askenv envname size */ - sprintf (message, "Please enter '%s':", argv[1]); - size = simple_strtoul (argv[2], NULL, 10); + case 3: /* env_ask envname size */ + sprintf(message, "Please enter '%s':", argv[1]); + size = simple_strtoul(argv[2], NULL, 10); break; - default: /* askenv envname message1 ... messagen size */ - { - int i; - int pos = 0; - - for (i = 2; i < argc - 1; i++) { + default: /* env_ask envname message1 ... messagen size */ + for (i=2,pos=0; i < argc - 1; i++) { if (pos) { message[pos++] = ' '; } - strcpy (message+pos, argv[i]); + strcpy(message+pos, argv[i]); pos += strlen(argv[i]); } message[pos] = '\0'; - size = simple_strtoul (argv[argc - 1], NULL, 10); - } + size = simple_strtoul(argv[argc - 1], NULL, 10); break; } @@ -461,7 +400,7 @@ int do_askenv ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) return 1; /* prompt for input */ - len = readline (message); + len = readline(message); if (size < len) console_buffer[size] = '\0'; @@ -473,15 +412,15 @@ int do_askenv ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) } /* Continue calling setenv code */ - return _do_setenv (flag, len, local_args); + return _do_env_set(flag, len, local_args); } #endif -/************************************************************************ +/* * Interactively edit an environment variable */ #if defined(CONFIG_CMD_EDITENV) -int do_editenv(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +int do_env_edit(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { char buffer[CONFIG_SYS_CBSIZE]; char *init_val; @@ -503,42 +442,37 @@ int do_editenv(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) } #endif /* CONFIG_CMD_EDITENV */ -/************************************************************************ +/* * Look up variable from environment, * return address of storage for that variable, * or NULL if not found */ - char *getenv (char *name) { - if (gd->flags & GD_FLG_RELOC) { /* full C runtime after reloc */ - int i, nxt; + if (gd->flags & GD_FLG_ENV_READY) { /* after import into hashtable */ + ENTRY e, *ep; WATCHDOG_RESET(); - for (i=0; env_get_char(i) != '\0'; i=nxt+1) { - int val; - - for (nxt=i; env_get_char(nxt) != '\0'; ++nxt) { - if (nxt >= CONFIG_ENV_SIZE) { - return (NULL); - } - } - if ((val=envmatch((uchar *)name, i)) < 0) - continue; - return ((char *)env_get_addr(val)); - } + e.key = name; + e.data = NULL; + ep = hsearch (e, FIND); - return (NULL); + return (ep ? ep->data : NULL); } - /* restricted C runtime before reloc */ + /* restricted capabilities before import */ + + if (getenv_f(name, (char *)(gd->env_buf), sizeof(gd->env_buf)) > 0) + return (char *)(gd->env_buf); - return ((getenv_f(name,gd->env_buf,sizeof(gd->env_buf)) > 0) ? - gd->env_buf : NULL); + return NULL; } -int getenv_f(char *name, char *buf, unsigned len) +/* + * Look up variable from environment for restricted C runtime env. + */ +int getenv_f (char *name, char *buf, unsigned len) { int i, nxt; @@ -571,7 +505,7 @@ int getenv_f(char *name, char *buf, unsigned len) #if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE) -int do_saveenv (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +int do_env_save (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { extern char * env_name_spec; @@ -581,7 +515,7 @@ int do_saveenv (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) } U_BOOT_CMD( - saveenv, 1, 0, do_saveenv, + saveenv, 1, 0, do_env_save, "save environment variables to persistent storage", "" ); @@ -589,7 +523,7 @@ U_BOOT_CMD( #endif -/************************************************************************ +/* * Match a name / name=value pair * * s1 is either a simple 'name', or a 'name=value' pair. @@ -608,12 +542,345 @@ int envmatch (uchar *s1, int i2) return(-1); } +static int do_env_default(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) +{ + if ((argc != 2) || (strcmp(argv[1], "-f") != 0)) { + cmd_usage(cmdtp); + return 1; + } + set_default_env("## Resetting to default environment\n"); + return 0; +} + +static int do_env_delete(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) +{ + printf("Not implemented yet\n"); + return 0; +} + +/* + * env export [-t | -b | -c] addr [size] + * -t: export as text format; if size is given, data will be + * padded with '\0' bytes; if not, one terminating '\0' + * will be added (which is included in the "filesize" + * setting so you can for exmple copy this to flash and + * keep the termination). + * -b: export as binary format (name=value pairs separated by + * '\0', list end marked by double "\0\0") + * -c: export as checksum protected environment format as + * used for example by "saveenv" command + * addr: memory address where environment gets stored + * size: size of output buffer + * + * With "-c" and size is NOT given, then the export command will + * format the data as currently used for the persistent storage, + * i. e. it will use CONFIG_ENV_SECT_SIZE as output block size and + * prepend a valid CRC32 checksum and, in case of resundant + * environment, a "current" redundancy flag. If size is given, this + * value will be used instead of CONFIG_ENV_SECT_SIZE; again, CRC32 + * checksum and redundancy flag will be inserted. + * + * With "-b" and "-t", always only the real data (including a + * terminating '\0' byte) will be written; here the optional size + * argument will be used to make sure not to overflow the user + * provided buffer; the command will abort if the size is not + * sufficient. Any remainign space will be '\0' padded. + * + * On successful return, the variable "filesize" will be set. + * Note that filesize includes the trailing/terminating '\0' byte(s). + * + * Usage szenario: create a text snapshot/backup of the current settings: + * + * => env export -t 100000 + * => era ${backup_addr} +${filesize} + * => cp.b 100000 ${backup_addr} ${filesize} + * + * Re-import this snapshot, deleting all other settings: + * + * => env import -d -t ${backup_addr} + */ +static int do_env_export(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + char buf[32]; + char *addr, *cmd, *res; + size_t size; + ssize_t len; + env_t *envp; + char sep = '\n'; + int chk = 0; + int fmt = 0; + + cmd = *argv; + + while (--argc > 0 && **++argv == '-') { + char *arg = *argv; + while (*++arg) { + switch (*arg) { + case 'b': /* raw binary format */ + if (fmt++) + goto sep_err; + sep = '\0'; + break; + case 'c': /* external checksum format */ + if (fmt++) + goto sep_err; + sep = '\0'; + chk = 1; + break; + case 't': /* text format */ + if (fmt++) + goto sep_err; + sep = '\n'; + break; + default: + cmd_usage(cmdtp); + return 1; + } + } + } + + if (argc < 1) { + cmd_usage(cmdtp); + return 1; + } -/**************************************************/ + addr = (char *)simple_strtoul(argv[0], NULL, 16); + + if (argc == 2) { + size = simple_strtoul(argv[1], NULL, 16); + memset(addr, '\0', size); + } else { + size = 0; + } + + if (sep) { /* export as text file */ + len = hexport(sep, &addr, size); + if (len < 0) { + error("Cannot export environment: errno = %d\n", + errno); + return 1; + } + sprintf(buf, "%zX", len); + setenv("filesize", buf); + + return 0; + } + + envp = (env_t *)addr; + + if (chk) /* export as checksum protected block */ + res = (char *)envp->data; + else /* export as raw binary data */ + res = addr; + + len = hexport('\0', &res, ENV_SIZE); + if (len < 0) { + error("Cannot export environment: errno = %d\n", + errno); + return 1; + } + + if (chk) { + envp->crc = crc32(0, envp->data, ENV_SIZE); +#ifdef CONFIG_ENV_ADDR_REDUND + envp->flags = ACTIVE_FLAG; +#endif + } + sprintf(buf, "%zX", len + offsetof(env_t,data)); + setenv("filesize", buf); + + return 0; + +sep_err: + printf("## %s: only one of \"-b\", \"-c\" or \"-t\" allowed\n", + cmd); + return 1; +} + +/* + * env import [-d] [-t | -b | -c] addr [size] + * -d: delete existing environment before importing; + * otherwise overwrite / append to existion definitions + * -t: assume text format; either "size" must be given or the + * text data must be '\0' terminated + * -b: assume binary format ('\0' separated, "\0\0" terminated) + * -c: assume checksum protected environment format + * addr: memory address to read from + * size: length of input data; if missing, proper '\0' + * termination is mandatory + */ +static int do_env_import(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) +{ + char *cmd, *addr; + char sep = '\n'; + int chk = 0; + int fmt = 0; + int del = 0; + size_t size; + + cmd = *argv; + + while (--argc > 0 && **++argv == '-') { + char *arg = *argv; + while (*++arg) { + switch (*arg) { + case 'b': /* raw binary format */ + if (fmt++) + goto sep_err; + sep = '\0'; + break; + case 'c': /* external checksum format */ + if (fmt++) + goto sep_err; + sep = '\0'; + chk = 1; + break; + case 't': /* text format */ + if (fmt++) + goto sep_err; + sep = '\n'; + break; + case 'd': + del = 1; + break; + default: + cmd_usage(cmdtp); + return 1; + } + } + } + + if (argc < 1) { + cmd_usage(cmdtp); + return 1; + } + + if (!fmt) + printf("## Warning: defaulting to text format\n"); + + addr = (char *)simple_strtoul(argv[0], NULL, 16); + + if (argc == 2) { + size = simple_strtoul(argv[1], NULL, 16); + } else { + char *s = addr; + + size = 0; + + while (size < MAX_ENV_SIZE) { + if ((*s == sep) && (*(s+1) == '\0')) + break; + ++s; + ++size; + } + if (size == MAX_ENV_SIZE) { + printf("## Warning: Input data exceeds %d bytes" + " - truncated\n", MAX_ENV_SIZE); + } + ++size; + printf("## Info: input data size = %zd = 0x%zX\n", size, size); + } + + if (chk) { + uint32_t crc; + env_t *ep = (env_t *)addr; + + size -= offsetof(env_t, data); + memcpy(&crc, &ep->crc, sizeof(crc)); + + if (crc32(0, ep->data, size) != crc) { + puts("## Error: bad CRC, import failed\n"); + return 1; + } + addr = (char *)ep->data; + } + + if (himport(addr, size, sep, del ? 0 : H_NOCLEAR) == 0) { + error("Environment import failed: errno = %d\n", errno); + return 1; + } + gd->flags |= GD_FLG_ENV_READY; + + return 0; + +sep_err: + printf("## %s: only one of \"-b\", \"-c\" or \"-t\" allowed\n", + cmd); + return 1; +} + +#if defined(CONFIG_CMD_RUN) +extern int do_run (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); +#endif + +/* + * New command line interface: "env" command with subcommands + */ +static cmd_tbl_t cmd_env_sub[] = { +#if defined(CONFIG_CMD_ASKENV) + U_BOOT_CMD_MKENT(ask, CONFIG_SYS_MAXARGS, 1, do_env_ask, "", ""), +#endif + U_BOOT_CMD_MKENT(default, 1, 0, do_env_default, "", ""), + U_BOOT_CMD_MKENT(delete, 2, 0, do_env_delete, "", ""), +#if defined(CONFIG_CMD_EDITENV) + U_BOOT_CMD_MKENT(edit, 2, 0, do_env_edit, "", ""), +#endif + U_BOOT_CMD_MKENT(export, 4, 0, do_env_export, "", ""), + U_BOOT_CMD_MKENT(import, 5, 0, do_env_import, "", ""), + U_BOOT_CMD_MKENT(print, CONFIG_SYS_MAXARGS, 1, do_env_print, "", ""), +#if defined(CONFIG_CMD_RUN) + U_BOOT_CMD_MKENT(run, CONFIG_SYS_MAXARGS, 1, do_run, "", ""), +#endif +#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE) + U_BOOT_CMD_MKENT(save, 1, 0, do_env_save, "", ""), +#endif + U_BOOT_CMD_MKENT(set, CONFIG_SYS_MAXARGS, 0, do_env_set, "", ""), +}; + +static int do_env (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + cmd_tbl_t *cp; + + /* drop initial "env" arg */ + argc--; + argv++; + + cp = find_cmd_tbl(argv[0], cmd_env_sub, ARRAY_SIZE(cmd_env_sub)); + + if (cp) + return cp->cmd(cmdtp, flag, argc, argv); + + cmd_usage(cmdtp); + return 1; +} + +U_BOOT_CMD( + env, CONFIG_SYS_MAXARGS, 1, do_env, + "environment handling commands", +#if defined(CONFIG_CMD_ASKENV) + "ask name [message] [size] - ask for environment variable\nenv " +#endif + "default -f - reset default environment\n" +#if defined(CONFIG_CMD_EDITENV) + "env edit name - edit environment variable\n" +#endif + "env export [-t | -b | -c] addr [size] - export environmnt\n" + "env import [-d] [-t | -b | -c] addr [size] - import environmnt\n" + "env print [name ...] - print environment\n" +#if defined(CONFIG_CMD_RUN) + "env run var [...] - run commands in an environment variable\n" +#endif + "env save - save environment\n" + "env set [-f] name [arg ...]\n" +); + +/* + * Old command line interface, kept for compatibility + */ #if defined(CONFIG_CMD_EDITENV) U_BOOT_CMD( - editenv, 2, 0, do_editenv, + editenv, 2, 0, do_env_edit, "edit environment variable", "name\n" " - edit environment variable 'name'" @@ -621,7 +888,7 @@ U_BOOT_CMD( #endif U_BOOT_CMD( - printenv, CONFIG_SYS_MAXARGS, 1, do_printenv, + printenv, CONFIG_SYS_MAXARGS, 1, do_env_print, "print environment variables", "\n - print values of all environment variables\n" "printenv name ...\n" @@ -629,7 +896,7 @@ U_BOOT_CMD( ); U_BOOT_CMD( - setenv, CONFIG_SYS_MAXARGS, 0, do_setenv, + setenv, CONFIG_SYS_MAXARGS, 0, do_env_set, "set environment variables", "name value ...\n" " - set environment variable 'name' to 'value ...'\n" @@ -640,7 +907,7 @@ U_BOOT_CMD( #if defined(CONFIG_CMD_ASKENV) U_BOOT_CMD( - askenv, CONFIG_SYS_MAXARGS, 1, do_askenv, + askenv, CONFIG_SYS_MAXARGS, 1, do_env_ask, "get environment variables from stdin", "name [message] [size]\n" " - get environment variable 'name' from stdin (max 'size' chars)\n" @@ -655,7 +922,6 @@ U_BOOT_CMD( #endif #if defined(CONFIG_CMD_RUN) -int do_run (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); U_BOOT_CMD( run, CONFIG_SYS_MAXARGS, 1, do_run, "run commands in an environment variable", diff --git a/common/command.c b/common/command.c index 30a9801..72266c3 100644 --- a/common/command.c +++ b/common/command.c @@ -160,6 +160,7 @@ int cmd_usage(cmd_tbl_t *cmdtp) int var_complete(int argc, char * const argv[], char last_char, int maxv, char *cmdv[]) { +#if 0 /* need to reimplement */ static char tmp_buf[512]; int space; @@ -170,7 +171,7 @@ int var_complete(int argc, char * const argv[], char last_char, int maxv, char * if (!space && argc == 2) return env_complete(argv[1], maxv, cmdv, sizeof(tmp_buf), tmp_buf); - +#endif return 0; } diff --git a/common/dlmalloc.c b/common/dlmalloc.c index 2276532..ae5702d 100644 --- a/common/dlmalloc.c +++ b/common/dlmalloc.c @@ -222,7 +222,6 @@ - /* Preliminaries */ #ifndef __STD_C @@ -935,10 +934,10 @@ struct mallinfo mALLINFo(); #endif /* ---------- To make a malloc.h, end cutting here ------------ */ -#else /* Moved to malloc.h */ +#endif /* 0 */ /* Moved to malloc.h */ #include <malloc.h> -#if 0 +#ifdef DEBUG #if __STD_C static void malloc_update_mallinfo (void); void malloc_stats (void); @@ -946,9 +945,7 @@ void malloc_stats (void); static void malloc_update_mallinfo (); void malloc_stats(); #endif -#endif /* 0 */ - -#endif /* 0 */ /* Moved to malloc.h */ +#endif /* DEBUG */ DECLARE_GLOBAL_DATA_PTR; @@ -1618,9 +1615,9 @@ static struct mallinfo current_mallinfo = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; /* Tracking mmaps */ -#if 0 +#ifdef DEBUG static unsigned int n_mmaps = 0; -#endif /* 0 */ +#endif /* DEBUG */ static unsigned long mmapped_mem = 0; #if HAVE_MMAP static unsigned int max_n_mmaps = 0; @@ -3101,7 +3098,7 @@ size_t malloc_usable_size(mem) Void_t* mem; /* Utility to update current_mallinfo for malloc_stats and mallinfo() */ -#if 0 +#ifdef DEBUG static void malloc_update_mallinfo() { int i; @@ -3139,7 +3136,7 @@ static void malloc_update_mallinfo() current_mallinfo.keepcost = chunksize(top); } -#endif /* 0 */ +#endif /* DEBUG */ @@ -3158,7 +3155,7 @@ static void malloc_update_mallinfo() */ -#if 0 +#ifdef DEBUG void malloc_stats() { malloc_update_mallinfo(); @@ -3173,19 +3170,19 @@ void malloc_stats() (unsigned int)max_n_mmaps); #endif } -#endif /* 0 */ +#endif /* DEBUG */ /* mallinfo returns a copy of updated current mallinfo. */ -#if 0 +#ifdef DEBUG struct mallinfo mALLINFo() { malloc_update_mallinfo(); return current_mallinfo; } -#endif /* 0 */ +#endif /* DEBUG */ diff --git a/common/env_common.c b/common/env_common.c index 460309b..a415ef8 100644 --- a/common/env_common.c +++ b/common/env_common.c @@ -1,10 +1,10 @@ /* - * (C) Copyright 2000-2002 + * (C) Copyright 2000-2010 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com> * Andreas Heppel <aheppel@sysgo.de> - + * * See file CREDITS for list of people who contributed to this * project. * @@ -28,17 +28,12 @@ #include <command.h> #include <environment.h> #include <linux/stddef.h> +#include <search.h> +#include <errno.h> #include <malloc.h> DECLARE_GLOBAL_DATA_PTR; -#undef DEBUG_ENV -#ifdef DEBUG_ENV -#define DEBUGF(fmt,args...) printf(fmt ,##args) -#else -#define DEBUGF(fmt,args...) -#endif - extern env_t *env_ptr; extern void env_relocate_spec (void); @@ -134,33 +129,22 @@ uchar default_environment[] = { "\0" }; -void env_crc_update (void) -{ - env_ptr->crc = crc32(0, env_ptr->data, ENV_SIZE); -} - static uchar env_get_char_init (int index) { uchar c; /* if crc was bad, use the default environment */ if (gd->env_valid) - { c = env_get_char_spec(index); - } else { + else c = default_environment[index]; - } return (c); } uchar env_get_char_memory (int index) { - if (gd->env_valid) { - return ( *((uchar *)(gd->env_addr + index)) ); - } else { - return ( default_environment[index] ); - } + return *env_get_addr(index); } uchar env_get_char (int index) @@ -178,70 +162,84 @@ uchar env_get_char (int index) uchar *env_get_addr (int index) { - if (gd->env_valid) { - return ( ((uchar *)(gd->env_addr + index)) ); - } else { - return (&default_environment[index]); - } + if (gd->env_valid) + return (uchar *)(gd->env_addr + index); + else + return &default_environment[index]; } -void set_default_env(void) +void set_default_env(const char *s) { if (sizeof(default_environment) > ENV_SIZE) { - puts ("*** Error - default environment is too large\n\n"); + puts("*** Error - default environment is too large\n\n"); return; } - memset(env_ptr, 0, sizeof(env_t)); - memcpy(env_ptr->data, default_environment, - sizeof(default_environment)); -#ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT - env_ptr->flags = 0xFF; -#endif - env_crc_update (); - gd->env_valid = 1; + if (s) { + if (*s == '!') { + printf("*** Warning - %s, " + "using default environment\n\n", + s+1); + } else { + puts(s); + } + } else { + puts("Using default environment\n\n"); + } + + if (himport((char *)default_environment, + sizeof(default_environment), '\0', 0) == 0) { + error("Environment import failed: errno = %d\n", errno); + } + gd->flags |= GD_FLG_ENV_READY; } -void env_relocate (void) +/* + * Check if CRC is valid and (if yes) import the environment. + * Note that "buf" may or may not be aligned. + */ +int env_import(const char *buf, int check) { -#ifndef CONFIG_RELOC_FIXUP_WORKS - DEBUGF ("%s[%d] offset = 0x%lx\n", __FUNCTION__,__LINE__, - gd->reloc_off); -#endif + env_t *ep = (env_t *)buf; -#ifdef ENV_IS_EMBEDDED - /* - * The environment buffer is embedded with the text segment, - * just relocate the environment pointer - */ -#ifndef CONFIG_RELOC_FIXUP_WORKS - env_ptr = (env_t *)((ulong)env_ptr + gd->reloc_off); -#endif - DEBUGF ("%s[%d] embedded ENV at %p\n", __FUNCTION__,__LINE__,env_ptr); -#else - /* - * We must allocate a buffer for the environment - */ - env_ptr = (env_t *)malloc (CONFIG_ENV_SIZE); - DEBUGF ("%s[%d] malloced ENV at %p\n", __FUNCTION__,__LINE__,env_ptr); -#endif + if (check) { + uint32_t crc; + + memcpy(&crc, &ep->crc, sizeof(crc)); + + if (crc32(0, ep->data, ENV_SIZE) != crc) { + set_default_env("!bad CRC"); + return 0; + } + } + + if (himport((char *)ep->data, ENV_SIZE, '\0', 0)) { + gd->flags |= GD_FLG_ENV_READY; + return 1; + } + error("Cannot import environment: errno = %d\n", errno); + + set_default_env("!import failed"); + + return 0; +} + +void env_relocate (void) +{ if (gd->env_valid == 0) { #if defined(CONFIG_ENV_IS_NOWHERE) /* Environment not changable */ - puts ("Using default environment\n\n"); + set_default_env(NULL); #else - puts ("*** Warning - bad CRC, using default environment\n\n"); show_boot_progress (-60); #endif - set_default_env(); - } - else { + set_default_env("!bad CRC"); + } else { env_relocate_spec (); } - gd->env_addr = (ulong)&(env_ptr->data); } -#ifdef CONFIG_AUTO_COMPLETE +#if 0 /* need to reimplement - def CONFIG_AUTO_COMPLETE */ int env_complete(char *var, int maxv, char *cmdv[], int bufsz, char *buf) { int i, nxt, len, vallen, found; diff --git a/common/env_dataflash.c b/common/env_dataflash.c index 27a3bbc..270f2b3 100644 --- a/common/env_dataflash.c +++ b/common/env_dataflash.c @@ -1,4 +1,5 @@ -/* LowLevel function for DataFlash environment support +/* + * LowLevel function for DataFlash environment support * Author : Gilles Gastaldi (Atmel) * * This program is free software; you can redistribute it and/or @@ -15,13 +16,14 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA - * */ #include <common.h> #include <command.h> #include <environment.h> #include <linux/stddef.h> #include <dataflash.h> +#include <search.h> +#include <errno.h> DECLARE_GLOBAL_DATA_PTR; @@ -29,39 +31,59 @@ env_t *env_ptr = NULL; char * env_name_spec = "dataflash"; -extern int read_dataflash (unsigned long addr, unsigned long size, char -*result); -extern int write_dataflash (unsigned long addr_dest, unsigned long addr_src, - unsigned long size); -extern int AT91F_DataflashInit (void); -extern uchar default_environment[]; +extern int read_dataflash(unsigned long addr, unsigned long size, + char *result); +extern int write_dataflash(unsigned long addr_dest, + unsigned long addr_src, unsigned long size); +extern int AT91F_DataflashInit(void); +extern uchar default_environment[]; -uchar env_get_char_spec (int index) +uchar env_get_char_spec(int index) { uchar c; + read_dataflash(CONFIG_ENV_ADDR + index + offsetof(env_t,data), - 1, (char *)&c); + 1, (char *)&c); return (c); } -void env_relocate_spec (void) +void env_relocate_spec(void) { - read_dataflash(CONFIG_ENV_ADDR, CONFIG_ENV_SIZE, (char *)env_ptr); + char buf[CONFIG_ENV_SIZE]; + + read_dataflash(CONFIG_ENV_ADDR, CONFIG_ENV_SIZE, buf); + + env_import(buf, 1); } +#ifdef CONFIG_ENV_OFFSET_REDUND +#error No support for redundant environment on dataflash yet! +#endif + int saveenv(void) { - /* env must be copied to do not alter env structure in memory*/ - unsigned char temp[CONFIG_ENV_SIZE]; - memcpy(temp, env_ptr, CONFIG_ENV_SIZE); - return write_dataflash(CONFIG_ENV_ADDR, (unsigned long)temp, CONFIG_ENV_SIZE); + env_t env_new; + ssize_t len; + char *res; + + res = (char *)&env_new.data; + len = hexport('\0', &res, ENV_SIZE); + if (len < 0) { + error("Cannot export environment: errno = %d\n", errno); + return 1; + } + env_new.crc = crc32(0, env_new.data, ENV_SIZE); + + return write_dataflash(CONFIG_ENV_ADDR, + (unsigned long)&env_new, + CONFIG_ENV_SIZE); } -/************************************************************************ - * Initialize Environment use +/* + * Initialize environment use * - * We are still running from ROM, so data use is limited + * We are still running from ROM, so data use is limited. * Use a (moderately small) buffer on the stack */ int env_init(void) @@ -69,30 +91,36 @@ int env_init(void) ulong crc, len, new; unsigned off; uchar buf[64]; - if (gd->env_valid == 0){ - AT91F_DataflashInit(); /* prepare for DATAFLASH read/write */ - - /* read old CRC */ - read_dataflash(CONFIG_ENV_ADDR + offsetof(env_t, crc), - sizeof(ulong), (char *)&crc); - new = 0; - len = ENV_SIZE; - off = offsetof(env_t,data); - while (len > 0) { - int n = (len > sizeof(buf)) ? sizeof(buf) : len; - read_dataflash(CONFIG_ENV_ADDR + off, n, (char *)buf); - new = crc32 (new, buf, n); - len -= n; - off += n; - } - if (crc == new) { - gd->env_addr = offsetof(env_t,data); - gd->env_valid = 1; - } else { - gd->env_addr = (ulong)&default_environment[0]; - gd->env_valid = 0; - } + + if (gd->env_valid) + return 0; + + AT91F_DataflashInit(); /* prepare for DATAFLASH read/write */ + + /* read old CRC */ + read_dataflash(CONFIG_ENV_ADDR + offsetof(env_t, crc), + sizeof(ulong), (char *)&crc); + + new = 0; + len = ENV_SIZE; + off = offsetof(env_t,data); + while (len > 0) { + int n = (len > sizeof(buf)) ? sizeof(buf) : len; + + read_dataflash(CONFIG_ENV_ADDR + off, n, (char *)buf); + + new = crc32 (new, buf, n); + len -= n; + off += n; + } + + if (crc == new) { + gd->env_addr = offsetof(env_t,data); + gd->env_valid = 1; + } else { + gd->env_addr = (ulong)&default_environment[0]; + gd->env_valid = 0; } - return (0); + return 0; } diff --git a/common/env_eeprom.c b/common/env_eeprom.c index 8fe59f8..792b44f 100644 --- a/common/env_eeprom.c +++ b/common/env_eeprom.c @@ -1,10 +1,10 @@ /* - * (C) Copyright 2000-2002 + * (C) Copyright 2000-2010 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com> * Andreas Heppel <aheppel@sysgo.de> - + * * See file CREDITS for list of people who contributed to this * project. * @@ -31,16 +31,19 @@ #if defined(CONFIG_I2C_ENV_EEPROM_BUS) #include <i2c.h> #endif +#include <search.h> +#include <errno.h> +#include <linux/compiler.h> /* for BUG_ON */ DECLARE_GLOBAL_DATA_PTR; env_t *env_ptr = NULL; -char * env_name_spec = "EEPROM"; +char *env_name_spec = "EEPROM"; int env_eeprom_bus = -1; -static int eeprom_bus_read (unsigned dev_addr, unsigned offset, uchar *buffer, - unsigned cnt) +static int eeprom_bus_read(unsigned dev_addr, unsigned offset, + uchar *buffer, unsigned cnt) { int rcode; #if defined(CONFIG_I2C_ENV_EEPROM_BUS) @@ -51,9 +54,9 @@ static int eeprom_bus_read (unsigned dev_addr, unsigned offset, uchar *buffer, I2C_MUX_DEVICE *dev = NULL; dev = i2c_mux_ident_muxstring( (uchar *)CONFIG_I2C_ENV_EEPROM_BUS); - if (dev != NULL) { + if (dev != NULL) env_eeprom_bus = dev->busid; - } else + else printf ("error adding env eeprom bus.\n"); } if (old_bus != env_eeprom_bus) { @@ -67,6 +70,7 @@ static int eeprom_bus_read (unsigned dev_addr, unsigned offset, uchar *buffer, #endif rcode = eeprom_read (dev_addr, offset, buffer, cnt); + #if defined(CONFIG_I2C_ENV_EEPROM_BUS) if (old_bus != env_eeprom_bus) i2c_set_bus_num(old_bus); @@ -74,8 +78,8 @@ static int eeprom_bus_read (unsigned dev_addr, unsigned offset, uchar *buffer, return rcode; } -static int eeprom_bus_write (unsigned dev_addr, unsigned offset, uchar *buffer, - unsigned cnt) +static int eeprom_bus_write(unsigned dev_addr, unsigned offset, + uchar *buffer, unsigned cnt) { int rcode; #if defined(CONFIG_I2C_ENV_EEPROM_BUS) @@ -83,7 +87,7 @@ static int eeprom_bus_write (unsigned dev_addr, unsigned offset, uchar *buffer, rcode = i2c_mux_ident_muxstring_f((uchar *)CONFIG_I2C_ENV_EEPROM_BUS); #endif - rcode = eeprom_write (dev_addr, offset, buffer, cnt); + rcode = eeprom_write(dev_addr, offset, buffer, cnt); #if defined(CONFIG_I2C_ENV_EEPROM_BUS) i2c_set_bus_num(old_bus); #endif @@ -95,12 +99,12 @@ uchar env_get_char_spec (int index) uchar c; unsigned int off; off = CONFIG_ENV_OFFSET; + #ifdef CONFIG_ENV_OFFSET_REDUND if (gd->env_valid == 2) off = CONFIG_ENV_OFFSET_REDUND; #endif - - eeprom_bus_read (CONFIG_SYS_DEF_EEPROM_ADDR, + eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR, off + index + offsetof(env_t,data), &c, 1); @@ -109,40 +113,60 @@ uchar env_get_char_spec (int index) void env_relocate_spec (void) { + char buf[CONFIG_ENV_SIZE]; unsigned int off = CONFIG_ENV_OFFSET; + #ifdef CONFIG_ENV_OFFSET_REDUND if (gd->env_valid == 2) off = CONFIG_ENV_OFFSET_REDUND; #endif - eeprom_bus_read (CONFIG_SYS_DEF_EEPROM_ADDR, + eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR, off, - (uchar*)env_ptr, + (uchar *)buf, CONFIG_ENV_SIZE); + + env_import(buf, 1); } int saveenv(void) { + env_t env_new; + ssize_t len; + char *res; int rc; unsigned int off = CONFIG_ENV_OFFSET; #ifdef CONFIG_ENV_OFFSET_REDUND unsigned int off_red = CONFIG_ENV_OFFSET_REDUND; char flag_obsolete = OBSOLETE_FLAG; +#endif + + BUG_ON(env_ptr != NULL); + + res = (char *)&env_new.data; + len = hexport('\0', &res, ENV_SIZE); + if (len < 0) { + error("Cannot export environment: errno = %d\n", errno); + return 1; + } + env_new.crc = crc32(0, env_new.data, ENV_SIZE); + +#ifdef CONFIG_ENV_OFFSET_REDUND if (gd->env_valid == 1) { off = CONFIG_ENV_OFFSET_REDUND; off_red = CONFIG_ENV_OFFSET; } - env_ptr->flags = ACTIVE_FLAG; + env_new.flags = ACTIVE_FLAG; #endif - rc = eeprom_bus_write (CONFIG_SYS_DEF_EEPROM_ADDR, + rc = eeprom_bus_write(CONFIG_SYS_DEF_EEPROM_ADDR, off, - (uchar *)env_ptr, + (uchar *)&env_new, CONFIG_ENV_SIZE); #ifdef CONFIG_ENV_OFFSET_REDUND if (rc == 0) { - eeprom_bus_write (CONFIG_SYS_DEF_EEPROM_ADDR, + eeprom_bus_write(CONFIG_SYS_DEF_EEPROM_ADDR, off_red + offsetof(env_t,flags), (uchar *)&flag_obsolete, 1); @@ -157,10 +181,10 @@ int saveenv(void) return rc; } -/************************************************************************ +/* * Initialize Environment use * - * We are still running from ROM, so data use is limited + * We are still running from ROM, so data use is limited. * Use a (moderately small) buffer on the stack */ @@ -175,31 +199,31 @@ int env_init(void) unsigned char flags[2]; int i; - eeprom_init (); /* prepare for EEPROM read/write */ + eeprom_init(); /* prepare for EEPROM read/write */ off_env[0] = CONFIG_ENV_OFFSET; off_env[1] = CONFIG_ENV_OFFSET_REDUND; for (i = 0; i < 2; i++) { /* read CRC */ - eeprom_bus_read (CONFIG_SYS_DEF_EEPROM_ADDR, + eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR, off_env[i] + offsetof(env_t,crc), (uchar *)&crc[i], sizeof(ulong)); /* read FLAGS */ - eeprom_bus_read (CONFIG_SYS_DEF_EEPROM_ADDR, + eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR, off_env[i] + offsetof(env_t,flags), (uchar *)&flags[i], sizeof(uchar)); - crc_tmp= 0; + crc_tmp = 0; len = ENV_SIZE; off = off_env[i] + offsetof(env_t,data); while (len > 0) { int n = (len > sizeof(buf)) ? sizeof(buf) : len; - eeprom_bus_read (CONFIG_SYS_DEF_EEPROM_ADDR, off, + eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR, off, buf, n); - crc_tmp = crc32 (crc_tmp, buf, n); + crc_tmp = crc32(crc_tmp, buf, n); len -= n; off += n; } @@ -245,22 +269,23 @@ int env_init(void) unsigned off; uchar buf[64]; - eeprom_init (); /* prepare for EEPROM read/write */ + eeprom_init(); /* prepare for EEPROM read/write */ /* read old CRC */ - eeprom_bus_read (CONFIG_SYS_DEF_EEPROM_ADDR, + eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR, CONFIG_ENV_OFFSET+offsetof(env_t,crc), (uchar *)&crc, sizeof(ulong)); new = 0; len = ENV_SIZE; off = offsetof(env_t,data); + while (len > 0) { int n = (len > sizeof(buf)) ? sizeof(buf) : len; - eeprom_bus_read (CONFIG_SYS_DEF_EEPROM_ADDR, + eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR, CONFIG_ENV_OFFSET + off, buf, n); - new = crc32 (new, buf, n); + new = crc32(new, buf, n); len -= n; off += n; } diff --git a/common/env_flash.c b/common/env_flash.c index 925c5a0..1da78b7 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 <www.elinos.com> @@ -31,6 +31,8 @@ #include <environment.h> #include <linux/stddef.h> #include <malloc.h> +#include <search.h> +#include <errno.h> DECLARE_GLOBAL_DATA_PTR; @@ -51,36 +53,38 @@ 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; #endif /* CONFIG_ENV_ADDR_REDUND */ extern 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))); } +#undef debug +#define debug printf + #ifdef CONFIG_ENV_ADDR_REDUND int env_init(void) @@ -123,91 +127,97 @@ 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('\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; @@ -220,13 +230,12 @@ 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; } @@ -244,83 +253,93 @@ 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 */ - end_addr = flash_sect_addr + len - 1; + 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('\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; @@ -336,11 +355,11 @@ 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 && @@ -348,19 +367,17 @@ 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); } diff --git a/common/env_mgdisk.c b/common/env_mgdisk.c index b9de1ed..a69923b 100644 --- a/common/env_mgdisk.c +++ b/common/env_mgdisk.c @@ -30,7 +30,7 @@ /* references to names in env_common.c */ extern uchar default_environment[]; -char * env_name_spec = "MG_DISK"; +char *env_name_spec = "MG_DISK"; env_t *env_ptr = 0; @@ -38,34 +38,27 @@ DECLARE_GLOBAL_DATA_PTR; uchar env_get_char_spec(int index) { - return (*((uchar *) (gd->env_addr + index))); + return (*((uchar *)(gd->env_addr + index))); } void env_relocate_spec(void) { - unsigned int err; + char buf[CONFIG_ENV_SIZE]; + unsigned int err, rc; err = mg_disk_init(); if (err) { - puts ("*** Warning - mg_disk_init error"); - goto OUT; - } - err = mg_disk_read(CONFIG_ENV_ADDR, (u_char *)env_ptr, CONFIG_ENV_SIZE); - if (err) { - puts ("*** Warning - mg_disk_read error"); - goto OUT; + set_default_env("!mg_disk_init error"); + return; } - if (crc32(0, env_ptr->data, ENV_SIZE) != env_ptr->crc) { - puts ("*** Warning - CRC error"); - goto OUT; + err = mg_disk_read(CONFIG_ENV_ADDR, buf, CONFIG_ENV_SIZE); + if (err) { + set_default_env("!mg_disk_read error"); + return; } - return; - -OUT: - printf (", using default environment\n\n"); - set_default_env(); + env_import(buf, 1); } int saveenv(void) @@ -76,7 +69,7 @@ int saveenv(void) err = mg_disk_write(CONFIG_ENV_ADDR, (u_char *)env_ptr, CONFIG_ENV_SIZE); if (err) - puts ("*** Warning - mg_disk_write error\n\n"); + puts("*** Warning - mg_disk_write error\n\n"); return err; } @@ -84,7 +77,7 @@ int saveenv(void) int env_init(void) { /* use default */ - gd->env_addr = (ulong) & default_environment[0]; + gd->env_addr = (ulong)&default_environment[0]; gd->env_valid = 1; return 0; diff --git a/common/env_nand.c b/common/env_nand.c index d38bcca..4e8307a 100644 --- a/common/env_nand.c +++ b/common/env_nand.c @@ -1,16 +1,16 @@ /* + * (C) Copyright 2000-2010 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * * (C) Copyright 2008 * Stuart Wood, Lab X Technologies <stuart.wood@labxtechnologies.com> * * (C) Copyright 2004 * Jian Zhang, Texas Instruments, jzhang@ti.com. - - * (C) Copyright 2000-2006 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com> * Andreas Heppel <aheppel@sysgo.de> - + * * See file CREDITS for list of people who contributed to this * project. * @@ -30,7 +30,7 @@ * MA 02111-1307 USA */ -/* #define DEBUG */ +#define DEBUG #include <common.h> #include <command.h> @@ -38,7 +38,8 @@ #include <linux/stddef.h> #include <malloc.h> #include <nand.h> -#include <asm/errno.h> +#include <search.h> +#include <errno.h> #if defined(CONFIG_CMD_SAVEENV) && defined(CONFIG_CMD_NAND) #define CMD_SAVEENV @@ -57,7 +58,7 @@ /* references to names in env_common.c */ extern uchar default_environment[]; -char * env_name_spec = "NAND"; +char *env_name_spec = "NAND"; #if defined(ENV_IS_EMBEDDED) @@ -69,12 +70,6 @@ env_t *env_ptr = (env_t *)CONFIG_NAND_ENV_DST; env_t *env_ptr = 0; #endif /* ENV_IS_EMBEDDED */ - -/* local functions */ -#if !defined(ENV_IS_EMBEDDED) -static void use_default(void); -#endif - DECLARE_GLOBAL_DATA_PTR; uchar env_get_char_spec (int index) @@ -82,17 +77,17 @@ uchar env_get_char_spec (int index) return ( *((uchar *)(gd->env_addr + index)) ); } - -/* this is called before nand_init() - * so we can't read Nand to validate env data. - * Mark it OK for now. env_relocate() in env_common.c - * will call our relocate function which does the real - * validation. +/* + * This is called before nand_init() so we can't read NAND to + * validate env data. + * + * Mark it OK for now. env_relocate() in env_common.c will call our + * relocate function which does the real validation. * * When using a NAND boot image (like sequoia_nand), the environment - * can be embedded or attached to the U-Boot image in NAND flash. This way - * the SPL loads not only the U-Boot image from NAND but also the - * environment. + * can be embedded or attached to the U-Boot image in NAND flash. + * This way the SPL loads not only the U-Boot image from NAND but + * also the environment. */ int env_init(void) { @@ -189,11 +184,12 @@ int writeenv(size_t offset, u_char *buf) #ifdef CONFIG_ENV_OFFSET_REDUND int saveenv(void) { - int ret = 0; + env_t env_new; + ssize_t len; + char *res; + int ret = 0; nand_erase_options_t nand_erase_options; - env_ptr->flags++; - nand_erase_options.length = CONFIG_ENV_RANGE; nand_erase_options.quiet = 0; nand_erase_options.jffs2 = 0; @@ -201,36 +197,53 @@ int saveenv(void) if (CONFIG_ENV_RANGE < CONFIG_ENV_SIZE) return 1; + + res = (char *)&env_new.data; + len = hexport('\0', &res, ENV_SIZE); + if (len < 0) { + error("Cannot export environment: errno = %d\n", errno); + return 1; + } + env_new.crc = crc32(0, env_new.data, ENV_SIZE); + env_new.flags = ACTIVE_FLAG; + if(gd->env_valid == 1) { - puts ("Erasing redundant Nand...\n"); + puts("Erasing redundant NAND...\n"); nand_erase_options.offset = CONFIG_ENV_OFFSET_REDUND; if (nand_erase_opts(&nand_info[0], &nand_erase_options)) return 1; - puts ("Writing to redundant Nand... "); - ret = writeenv(CONFIG_ENV_OFFSET_REDUND, (u_char *) env_ptr); + puts("Writing to redundant NAND... "); + ret = writeenv(CONFIG_ENV_OFFSET_REDUND, + (u_char *)&env_new); } else { - puts ("Erasing Nand...\n"); + puts("Erasing NAND...\n"); nand_erase_options.offset = CONFIG_ENV_OFFSET; if (nand_erase_opts(&nand_info[0], &nand_erase_options)) return 1; - puts ("Writing to Nand... "); - ret = writeenv(CONFIG_ENV_OFFSET, (u_char *) env_ptr); + puts("Writing to NAND... "); + ret = writeenv(CONFIG_ENV_OFFSET, + (u_char *)&env_new); } if (ret) { puts("FAILED!\n"); return 1; } - puts ("done\n"); + puts("done\n"); + gd->env_valid = (gd->env_valid == 2 ? 1 : 2); + return ret; } #else /* ! CONFIG_ENV_OFFSET_REDUND */ int saveenv(void) { int ret = 0; + env_t env_new; + ssize_t len; + char *res; nand_erase_options_t nand_erase_options; nand_erase_options.length = CONFIG_ENV_RANGE; @@ -241,23 +254,32 @@ int saveenv(void) if (CONFIG_ENV_RANGE < CONFIG_ENV_SIZE) return 1; - puts ("Erasing Nand...\n"); + + res = (char *)&env_new.data; + len = hexport('\0', &res, ENV_SIZE); + if (len < 0) { + error("Cannot export environment: errno = %d\n", errno); + return 1; + } + env_new.crc = crc32(0, env_new.data, ENV_SIZE); + + puts("Erasing Nand...\n"); if (nand_erase_opts(&nand_info[0], &nand_erase_options)) return 1; - puts ("Writing to Nand... "); - if (writeenv(CONFIG_ENV_OFFSET, (u_char *) env_ptr)) { + puts("Writing to Nand... "); + if (writeenv(CONFIG_ENV_OFFSET, (u_char *)&env_new)) { puts("FAILED!\n"); return 1; } - puts ("done\n"); + puts("done\n"); return ret; } #endif /* CONFIG_ENV_OFFSET_REDUND */ #endif /* CMD_SAVEENV */ -int readenv (size_t offset, u_char * buf) +int readenv(size_t offset, u_char * buf) { size_t end = offset + CONFIG_ENV_RANGE; size_t amount_loaded = 0; @@ -320,47 +342,50 @@ int get_nand_env_oob(nand_info_t *nand, unsigned long *result) #endif #ifdef CONFIG_ENV_OFFSET_REDUND -void env_relocate_spec (void) +void env_relocate_spec(void) { #if !defined(ENV_IS_EMBEDDED) int crc1_ok = 0, crc2_ok = 0; - env_t *tmp_env1, *tmp_env2; + env_t *ep, *tmp_env1, *tmp_env2; - tmp_env1 = (env_t *) malloc(CONFIG_ENV_SIZE); - tmp_env2 = (env_t *) malloc(CONFIG_ENV_SIZE); + tmp_env1 = (env_t *)malloc(CONFIG_ENV_SIZE); + tmp_env2 = (env_t *)malloc(CONFIG_ENV_SIZE); if ((tmp_env1 == NULL) || (tmp_env2 == NULL)) { puts("Can't allocate buffers for environment\n"); - free (tmp_env1); - free (tmp_env2); - return use_default(); + free(tmp_env1); + free(tmp_env2); + set_default_env("!malloc() failed"); + return; } if (readenv(CONFIG_ENV_OFFSET, (u_char *) tmp_env1)) - puts("No Valid Environment Area Found\n"); + puts("No Valid Environment Area found\n"); + if (readenv(CONFIG_ENV_OFFSET_REDUND, (u_char *) tmp_env2)) - puts("No Valid Reundant Environment Area Found\n"); + puts("No Valid Redundant Environment Area found\n"); crc1_ok = (crc32(0, tmp_env1->data, ENV_SIZE) == tmp_env1->crc); crc2_ok = (crc32(0, tmp_env2->data, ENV_SIZE) == tmp_env2->crc); - if(!crc1_ok && !crc2_ok) { + if (!crc1_ok && !crc2_ok) { free(tmp_env1); free(tmp_env2); - return use_default(); - } else if(crc1_ok && !crc2_ok) + set_default_env("!bad CRC"); + return; + } else if (crc1_ok && !crc2_ok) { gd->env_valid = 1; - else if(!crc1_ok && crc2_ok) + } else if (!crc1_ok && crc2_ok) { gd->env_valid = 2; - else { + } else { /* both ok - check serial */ - if(tmp_env1->flags == 255 && tmp_env2->flags == 0) + if (tmp_env1->flags == 255 && tmp_env2->flags == 0) gd->env_valid = 2; - else if(tmp_env2->flags == 255 && tmp_env1->flags == 0) + else if (tmp_env2->flags == 255 && tmp_env1->flags == 0) gd->env_valid = 1; - else if(tmp_env1->flags > tmp_env2->flags) + else if (tmp_env1->flags > tmp_env2->flags) gd->env_valid = 1; - else if(tmp_env2->flags > tmp_env1->flags) + else if (tmp_env2->flags > tmp_env1->flags) gd->env_valid = 2; else /* flags are equal - almost impossible */ gd->env_valid = 1; @@ -368,51 +393,52 @@ void env_relocate_spec (void) } free(env_ptr); - if(gd->env_valid == 1) { - env_ptr = tmp_env1; - free(tmp_env2); - } else { - env_ptr = tmp_env2; - free(tmp_env1); - } + + if (gd->env_valid == 1) + ep = tmp_env1; + else + ep = tmp_env2; + + env_import((char *)ep, 0); + + free(tmp_env1); + free(tmp_env2); #endif /* ! ENV_IS_EMBEDDED */ } #else /* ! CONFIG_ENV_OFFSET_REDUND */ /* - * The legacy NAND code saved the environment in the first NAND device i.e., - * nand_dev_desc + 0. This is also the behaviour using the new NAND code. + * The legacy NAND code saved the environment in the first NAND + * device i.e., nand_dev_desc + 0. This is also the behaviour using + * the new NAND code. */ void env_relocate_spec (void) { #if !defined(ENV_IS_EMBEDDED) int ret; + char buf[CONFIG_ENV_SIZE]; #if defined(CONFIG_ENV_OFFSET_OOB) ret = get_nand_env_oob(&nand_info[0], &nand_env_oob_offset); - /* If unable to read environment offset from NAND OOB then fall through + /* + * If unable to read environment offset from NAND OOB then fall through * to the normal environment reading code below */ - if (!ret) + if (!ret) { printf("Found Environment offset in OOB..\n"); - else - return use_default(); + } else { + set_default_env("!no env offset in OOB"); + return; + } #endif - ret = readenv(CONFIG_ENV_OFFSET, (u_char *) env_ptr); - if (ret) - return use_default(); + ret = readenv(CONFIG_ENV_OFFSET, (u_char *)buf); + if (ret) { + set_default_env("!readenv() failed"); + return; + } - if (crc32(0, env_ptr->data, ENV_SIZE) != env_ptr->crc) - return use_default(); + env_import(buf, 1); #endif /* ! ENV_IS_EMBEDDED */ } #endif /* CONFIG_ENV_OFFSET_REDUND */ - -#if !defined(ENV_IS_EMBEDDED) -static void use_default() -{ - puts ("*** Warning - bad CRC or NAND, using default environment\n\n"); - set_default_env(); -} -#endif diff --git a/common/env_nowhere.c b/common/env_nowhere.c index ccc068b..75ef78d 100644 --- a/common/env_nowhere.c +++ b/common/env_nowhere.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 <www.elinos.com> @@ -35,22 +35,21 @@ env_t *env_ptr = NULL; extern uchar default_environment[]; - -void env_relocate_spec (void) +void env_relocate_spec(void) { } -uchar env_get_char_spec (int index) +uchar env_get_char_spec(int index) { return ( *((uchar *)(gd->env_addr + index)) ); } -/************************************************************************ +/* * Initialize Environment use * * We are still running from ROM, so data use is limited */ -int env_init(void) +int env_init(void) { gd->env_addr = (ulong)&default_environment[0]; gd->env_valid = 0; diff --git a/common/env_nvram.c b/common/env_nvram.c index 7c7cf98..6e90f2b 100644 --- a/common/env_nvram.c +++ b/common/env_nvram.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 <www.elinos.com> @@ -44,6 +44,8 @@ #include <command.h> #include <environment.h> #include <linux/stddef.h> +#include <search.h> +#include <errno.h> DECLARE_GLOBAL_DATA_PTR; @@ -59,7 +61,7 @@ char * env_name_spec = "NVRAM"; extern uchar default_environment[]; -uchar env_get_char_spec (int index) +uchar env_get_char_spec(int index) { #ifdef CONFIG_SYS_NVRAM_ACCESS_ROUTINE uchar c; @@ -72,40 +74,56 @@ uchar env_get_char_spec (int index) #endif } -void env_relocate_spec (void) +void env_relocate_spec(void) { + char buf[CONFIG_ENV_SIZE]; + #if defined(CONFIG_SYS_NVRAM_ACCESS_ROUTINE) - nvram_read(env_ptr, CONFIG_ENV_ADDR, CONFIG_ENV_SIZE); + nvram_read(buf, CONFIG_ENV_ADDR, CONFIG_ENV_SIZE); #else - memcpy (env_ptr, (void*)CONFIG_ENV_ADDR, CONFIG_ENV_SIZE); + memcpy(buf, (void*)CONFIG_ENV_ADDR, CONFIG_ENV_SIZE); #endif + env_import(buf, 1); } -int saveenv (void) +int saveenv(void) { - int rcode = 0; + env_t env_new; + ssize_t len; + char *res; + int rcode = 0; + + res = (char *)&env_new.data; + len = hexport('\0', &res, ENV_SIZE); + if (len < 0) { + error("Cannot export environment: errno = %d\n", errno); + return 1; + } + env_new.crc = crc32(0, env_new.data, ENV_SIZE); + #ifdef CONFIG_SYS_NVRAM_ACCESS_ROUTINE - nvram_write(CONFIG_ENV_ADDR, env_ptr, CONFIG_ENV_SIZE); + nvram_write(CONFIG_ENV_ADDR, &env_new, CONFIG_ENV_SIZE); #else - if (memcpy ((char *)CONFIG_ENV_ADDR, env_ptr, CONFIG_ENV_SIZE) == NULL) - rcode = 1 ; + if (memcpy((char *)CONFIG_ENV_ADDR, &env_new, CONFIG_ENV_SIZE) == NULL) + rcode = 1; #endif return rcode; } -/************************************************************************ +/* * Initialize Environment use * * We are still running from ROM, so data use is limited */ -int env_init (void) +int env_init(void) { #if defined(CONFIG_SYS_NVRAM_ACCESS_ROUTINE) ulong crc; uchar data[ENV_SIZE]; - nvram_read (&crc, CONFIG_ENV_ADDR, sizeof(ulong)); - nvram_read (data, CONFIG_ENV_ADDR+sizeof(ulong), ENV_SIZE); + + nvram_read(&crc, CONFIG_ENV_ADDR, sizeof(ulong)); + nvram_read(data, CONFIG_ENV_ADDR+sizeof(ulong), ENV_SIZE); if (crc32(0, data, ENV_SIZE) == crc) { gd->env_addr = (ulong)CONFIG_ENV_ADDR + sizeof(long); diff --git a/common/env_onenand.c b/common/env_onenand.c index cf997bf..02cb535 100644 --- a/common/env_onenand.c +++ b/common/env_onenand.c @@ -1,4 +1,7 @@ /* + * (C) Copyright 2010 DENX Software Engineering + * Wolfgang Denk <wd@denx.de> + * * (C) Copyright 2005-2009 Samsung Electronics * Kyungmin Park <kyungmin.park@samsung.com> * @@ -26,6 +29,8 @@ #include <environment.h> #include <linux/stddef.h> #include <malloc.h> +#include <search.h> +#include <errno.h> #include <linux/mtd/compat.h> #include <linux/mtd/mtd.h> @@ -44,17 +49,13 @@ char *env_name_spec = "OneNAND"; #ifdef ENV_IS_EMBEDDED extern uchar environment[]; -env_t *env_ptr = (env_t *) (&environment[0]); -#else /* ! ENV_IS_EMBEDDED */ -static unsigned char onenand_env[ONENAND_MAX_ENV_SIZE]; -env_t *env_ptr = (env_t *) onenand_env; #endif /* ENV_IS_EMBEDDED */ DECLARE_GLOBAL_DATA_PTR; uchar env_get_char_spec(int index) { - return (*((uchar *) (gd->env_addr + index))); + return (*((uchar *)(gd->env_addr + index))); } void env_relocate_spec(void) @@ -63,48 +64,57 @@ void env_relocate_spec(void) #ifdef CONFIG_ENV_ADDR_FLEX struct onenand_chip *this = &onenand_chip; #endif - loff_t env_addr; - int use_default = 0; + int rc; size_t retlen; +#ifdef ENV_IS_EMBEDDED + char *buf = (char *)&environment[0]; +#else + loff_t env_addr = CONFIG_ENV_ADDR; + char onenand_env[ONENAND_MAX_ENV_SIZE]; + char *buf = (char *)&onenand_env[0]; +#endif /* ENV_IS_EMBEDDED */ - env_addr = CONFIG_ENV_ADDR; -#ifdef CONFIG_ENV_ADDR_FLEX +#ifndef ENV_IS_EMBEDDED +# ifdef CONFIG_ENV_ADDR_FLEX if (FLEXONENAND(this)) env_addr = CONFIG_ENV_ADDR_FLEX; -#endif +# endif /* Check OneNAND exist */ if (mtd->writesize) /* Ignore read fail */ mtd->read(mtd, env_addr, ONENAND_MAX_ENV_SIZE, - &retlen, (u_char *) env_ptr); + &retlen, (u_char *)buf); else mtd->writesize = MAX_ONENAND_PAGESIZE; +#endif /* !ENV_IS_EMBEDDED */ - if (crc32(0, env_ptr->data, ONENAND_ENV_SIZE(mtd)) != env_ptr->crc) - use_default = 1; - - if (use_default) { - memcpy(env_ptr->data, default_environment, - ONENAND_ENV_SIZE(mtd)); - env_ptr->crc = - crc32(0, env_ptr->data, ONENAND_ENV_SIZE(mtd)); - } - - gd->env_addr = (ulong) & env_ptr->data; - gd->env_valid = 1; + rc = env_import(buf, 1); + if (rc) + gd->env_valid = 1; } int saveenv(void) { + env_t env_new; + ssize_t len; + char *res; struct mtd_info *mtd = &onenand_mtd; #ifdef CONFIG_ENV_ADDR_FLEX struct onenand_chip *this = &onenand_chip; #endif - loff_t env_addr = CONFIG_ENV_ADDR; + loff_t env_addr = CONFIG_ENV_ADDR; + size_t retlen; struct erase_info instr = { .callback = NULL, }; - size_t retlen; + + res = (char *)&env_new.data; + len = hexport('\0', &res, ENV_SIZE); + if (len < 0) { + error("Cannot export environment: errno = %d\n", errno); + return 1; + } + env_new.crc = crc32(0, env_new.data, ENV_SIZE); instr.len = CONFIG_ENV_SIZE; #ifdef CONFIG_ENV_ADDR_FLEX @@ -122,11 +132,8 @@ int saveenv(void) return 1; } - /* update crc */ - env_ptr->crc = crc32(0, env_ptr->data, ONENAND_ENV_SIZE(mtd)); - if (mtd->write(mtd, env_addr, ONENAND_MAX_ENV_SIZE, &retlen, - (u_char *) env_ptr)) { + (u_char *)&env_new)) { printf("OneNAND: write failed at 0x%llx\n", instr.addr); return 2; } diff --git a/common/env_sf.c b/common/env_sf.c index 4391d61..fb0c39b 100644 --- a/common/env_sf.c +++ b/common/env_sf.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 <www.elinos.com> @@ -29,6 +29,8 @@ #include <environment.h> #include <malloc.h> #include <spi_flash.h> +#include <search.h> +#include <errno.h> #ifndef CONFIG_ENV_SPI_BUS # define CONFIG_ENV_SPI_BUS 0 @@ -77,17 +79,29 @@ void swap_env(void) int saveenv(void) { - u32 saved_size, saved_offset; - char *saved_buffer = NULL; - u32 sector = 1; - int ret; - char flag = OBSOLETE_FLAG, new_flag = ACTIVE_FLAG; + env_t env_new; + ssize_t len; + char *res; + u32 saved_size, saved_offset; + char *saved_buffer = NULL; + u32 sector = 1; + int ret; + char flag = OBSOLETE_FLAG, new_flag = ACTIVE_FLAG; if (!env_flash) { puts("Environment SPI flash not initialized\n"); return 1; } + res = (char *)&env_new.data; + len = hexport('\0', &res, ENV_SIZE); + if (len < 0) { + error("Cannot export environment: errno = %d\n", errno); + return 1; + } + env_new.crc = crc32(0, env_new.data, ENV_SIZE); + env_new.flags = ACTIVE_FLAG; + /* Is the sector larger than the env (i.e. embedded) */ if (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) { saved_size = CONFIG_ENV_SECT_SIZE - CONFIG_ENV_SIZE; @@ -118,25 +132,25 @@ int saveenv(void) puts("Writing to SPI flash..."); ret = spi_flash_write(env_flash, env_new_offset + offsetof(env_t, data), - sizeof(env_ptr->data), env_ptr->data); + sizeof(env_new.data), env_new.data); if (ret) goto done; ret = spi_flash_write(env_flash, env_new_offset + offsetof(env_t, crc), - sizeof(env_ptr->crc), &env_ptr->crc); + sizeof(env_new.crc), &env_new.crc); if (ret) goto done; ret = spi_flash_write(env_flash, env_offset + offsetof(env_t, flags), - sizeof(env_ptr->flags), &flag); + sizeof(env_new.flags), &flag); if (ret) goto done; ret = spi_flash_write(env_flash, env_new_offset + offsetof(env_t, flags), - sizeof(env_ptr->flags), &new_flag); + sizeof(env_new.flags), &new_flag); if (ret) goto done; @@ -164,33 +178,34 @@ void env_relocate_spec(void) int crc1_ok = 0, crc2_ok = 0; env_t *tmp_env1 = NULL; env_t *tmp_env2 = NULL; + env_t ep; uchar flag1, flag2; /* current_env is set only in case both areas are valid! */ int current_env = 0; tmp_env1 = (env_t *)malloc(CONFIG_ENV_SIZE); - if (!tmp_env1) { - puts("*** Warning: could not init environment," - " using defaults\n\n"); - goto out; - } - tmp_env2 = (env_t *)malloc(CONFIG_ENV_SIZE); - if (!tmp_env2) { - puts("*** Warning: could not init environment," - " using defaults\n\n"); - goto out; + + if (!tmp_env1 || !tmp_env2) { + free(tmp_env1); + free(tmp_env2); + set_default_env("!malloc() failed"); + return; } env_flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS, CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE); - if (!env_flash) - goto err_probe; + if (!env_flash) { + set_default_env("!spi_flash_probe() failed"); + return; + } ret = spi_flash_read(env_flash, CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, tmp_env1); - if (ret) + if (ret) { + set_default_env("!spi_flash_read() failed"); goto err_read; + } if (crc32(0, tmp_env1->data, ENV_SIZE) == tmp_env1->crc) crc1_ok = 1; @@ -208,25 +223,25 @@ void env_relocate_spec(void) goto err_crc; else if (crc1_ok && !crc2_ok) { gd->env_valid = 1; - memcpy(env_ptr, tmp_env1, CONFIG_ENV_SIZE); + ep = tmp_env1; } else if (!crc1_ok && crc2_ok) { gd->env_valid = 1; - memcpy(env_ptr, tmp_env2, CONFIG_ENV_SIZE); + ep = tmp_env2; swap_env(); } else if (flag1 == ACTIVE_FLAG && flag2 == OBSOLETE_FLAG) { gd->env_valid = 1; - memcpy(env_ptr, tmp_env1, CONFIG_ENV_SIZE); + ep = tmp_env1; } else if (flag1 == OBSOLETE_FLAG && flag2 == ACTIVE_FLAG) { gd->env_valid = 1; - memcpy(env_ptr, tmp_env2, CONFIG_ENV_SIZE); + ep = tmp_env2; swap_env(); } else if (flag1 == flag2) { gd->env_valid = 2; - memcpy(env_ptr, tmp_env1, CONFIG_ENV_SIZE); + ep = tmp_env1; current_env = 1; } else if (flag1 == 0xFF) { gd->env_valid = 2; - memcpy(env_ptr, tmp_env1, CONFIG_ENV_SIZE); + ep = tmp_env1; current_env = 1; } else { /* @@ -234,35 +249,42 @@ void env_relocate_spec(void) * default path is desirable. */ gd->env_valid = 2; - memcpy(env_ptr, tmp_env2, CONFIG_ENV_SIZE); + ep = tmp_env2; swap_env(); current_env = 2; } + + rc = env_import((char *)ep, 0); + if (!rc) { + error("Cannot import environment: errno = %d\n", errno); + goto out; + } + if (current_env == 1) { if (flag2 != OBSOLETE_FLAG) { flag2 = OBSOLETE_FLAG; spi_flash_write(env_flash, env_new_offset + offsetof(env_t, flags), - sizeof(env_ptr->flags), &flag2); + sizeof(env_new.flags), &flag2); } if (flag1 != ACTIVE_FLAG) { flag1 = ACTIVE_FLAG; spi_flash_write(env_flash, env_offset + offsetof(env_t, flags), - sizeof(env_ptr->flags), &flag1); + sizeof(env_new.flags), &flag1); } } else if (current_env == 2) { if (flag1 != OBSOLETE_FLAG) { flag1 = OBSOLETE_FLAG; spi_flash_write(env_flash, env_new_offset + offsetof(env_t, flags), - sizeof(env_ptr->flags), &flag1); + sizeof(env_new.flags), &flag1); } if (flag2 != ACTIVE_FLAG) { flag2 = ACTIVE_FLAG; spi_flash_write(env_flash, env_offset + offsetof(env_t, flags), - sizeof(env_ptr->flags), &flag2); + sizeof(env_new.flags), &flag2); } } if (gd->env_valid == 2) { @@ -278,15 +300,9 @@ void env_relocate_spec(void) err_read: spi_flash_free(env_flash); env_flash = NULL; -err_probe: -err_crc: - puts("*** Warning - bad CRC, using default environment\n\n"); out: - if (tmp_env1) - free(tmp_env1); - if (tmp_env2) - free(tmp_env2); - set_default_env(); + free(tmp_env1); + free(tmp_env2); } #else int saveenv(void) @@ -348,32 +364,30 @@ int saveenv(void) void env_relocate_spec(void) { + char buf[CONFIG_ENV_SIZE]; int ret; env_flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS, CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE); - if (!env_flash) - goto err_probe; - - ret = spi_flash_read(env_flash, CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, env_ptr); - if (ret) - goto err_read; - - if (crc32(0, env_ptr->data, ENV_SIZE) != env_ptr->crc) - goto err_crc; + if (!env_flash) { + set_default_env("!spi_flash_probe() failed"); + return; + } - gd->env_valid = 1; + ret = spi_flash_read(env_flash, + CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, buf); + if (ret) { + set_default_env("!spi_flash_read() failed"); + goto out; + } - return; + ret = env_import(buf, 1); -err_read: + if (ret) + gd->env_valid = 1; +out: spi_flash_free(env_flash); env_flash = NULL; -err_probe: -err_crc: - puts("*** Warning - bad CRC, using default environment\n\n"); - - set_default_env(); } #endif |