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* Restrict baudrate settings on LWMON to higher speeds

Browse Source 
when watchdog is on

* Update baudrate in bd_info when it gets changed

* Add watchdog trigger points while waiting for serial port
  (so far only 8xx -- needed on LWMON with 100ms watchdog)

* Improve command line tool to access the U-Boot's environment
  (figuration of the utility, using a config file)
This commit is contained in:
wdenk 2003-01-11 09:48:40 +00:00
parent a25f862ba8
commit d0fb80c302
13 changed files with 341 additions and 171 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
CHANGELOG
View File

@ -2,6 +2,14 @@
Changes since U-Boot 0.2.0:
======================================================================
* Update baudrate in bd_info when it gets changed
* Add watchdog trigger points while waiting for serial port
(so far only 8xx -- needed on LWMON with 100ms watchdog)
* Improve command line tool to access the U-Boot's environment
(figuration of the utility, using a config file)
* Add single quote support for (old) command line parser
* Switch LWMON board default config from FRAM to EEPROM;

2
board/lwmon/lwmon.c
View File

@ -833,7 +833,7 @@ int do_kbd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
}
/* Read and set LSB switch */
#define CFG_PC_TXD1_ENA 0x0008
#define CFG_PC_TXD1_ENA 0x0008 /* PC.12 */
/***********************************************************************
F* Function: int do_lsb (cmd_tbl_t *cmdtp, int flag,

4
common/cmd_nvedit.c
View File

@ -232,6 +232,10 @@ int _do_setenv (int flag, int argc, char *argv[])
baudrate);
udelay(50000);
gd->baudrate = baudrate;
#ifdef CONFIG_PPC
gd->bd->bi_baudrate = baudrate;
#endif
serial_setbrg ();
udelay(50000);
for (;;) {

2
common/cmd_pcmcia.c
View File

@ -282,7 +282,7 @@ static int check_ide_device (int slot)
addr = (volatile uchar *)(CFG_PCMCIA_MEM_ADDR +
CFG_PCMCIA_MEM_SIZE * (slot * 4));
debug ("PCMCIA MEM: %08X\n", addr);
debug ("PCMCIA MEM: %08lX\n", (ulong)addr);
start = p = (volatile uchar *) addr;

2
common/environment.c
View File

@ -167,7 +167,7 @@ env_t environment __PPCENV__ = {
#ifdef CONFIG_EXTRA_ENV_SETTINGS
CONFIG_EXTRA_ENV_SETTINGS
#endif
"\0" /* Term. env_t.data with 2 NULLs */
"\0" /* Term. env_t.data with 2 NULs */
}
};
#ifdef CFG_ENV_ADDR_REDUND

52
common/hush.c
View File

@ -117,14 +117,15 @@
/* #include <dmalloc.h> */
/* #define DEBUG_SHELL */
#ifdef BB_VER
#if 1
#include "busybox.h"
#include "cmdedit.h"
#else
#define applet_name "hush"
#include "standalone.h"
#define hush_main main
#undef BB_FEATURE_SH_FANCY_PROMPT
#undef CONFIG_FEATURE_SH_FANCY_PROMPT
#define BB_BANNER
#endif
#endif
#define SPECIAL_VAR_SYMBOL 03
@ -430,7 +431,7 @@ static void setup_string_in_str(struct in_str *i, const char *s);
/* close_me manipulations: */
static void mark_open(int fd);
static void mark_closed(int fd);
static void close_all();
static void close_all(void);
#endif
/* "run" the final data structures: */
static char *indenter(int i);
@ -902,7 +903,7 @@ static void b_reset(o_string *o)
static void b_free(o_string *o)
{
b_reset(o);
if (o->data != NULL) free(o->data);
free(o->data);
o->data = NULL;
o->maxlen = 0;
}
@ -958,7 +959,7 @@ static int static_peek(struct in_str *i)
#ifndef __U_BOOT__
static inline void cmdedit_set_initial_prompt(void)
{
#ifndef BB_FEATURE_SH_FANCY_PROMPT
#ifndef CONFIG_FEATURE_SH_FANCY_PROMPT
PS1 = NULL;
#else
PS1 = getenv("PS1");
@ -970,11 +971,10 @@ static inline void cmdedit_set_initial_prompt(void)
static inline void setup_prompt_string(int promptmode, char **prompt_str)
{
debug_printf("setup_prompt_string %d ",promptmode);
#ifndef BB_FEATURE_SH_FANCY_PROMPT
#ifndef CONFIG_FEATURE_SH_FANCY_PROMPT
/* Set up the prompt */
if (promptmode == 1) {
if (PS1)
free(PS1);
free(PS1);
PS1=xmalloc(strlen(cwd)+4);
sprintf(PS1, "%s %s", cwd, ( geteuid() != 0 ) ? "$ ":"# ");
*prompt_str = PS1;
@ -995,7 +995,7 @@ static void get_user_input(struct in_str *i)
static char the_command[BUFSIZ];
setup_prompt_string(i->promptmode, &prompt_str);
#ifdef BB_FEATURE_COMMAND_EDITING
#ifdef CONFIG_FEATURE_COMMAND_EDITING
/*
** enable command line editing only while a command line
** is actually being read; otherwise, we'll end up bequeathing
@ -1176,7 +1176,7 @@ static void mark_closed(int fd)
free(tmp);
}
static void close_all()
static void close_all(void)
{
struct close_me *c;
for (c=close_me_head; c; c=c->next) {
@ -1290,18 +1290,18 @@ static void pseudo_exec(struct child_prog *child)
* really dislike relying on /proc for things. We could exec ourself
* from global_argv[0], but if we are in a chroot, we may not be able
* to find ourself... */
#ifdef BB_FEATURE_SH_STANDALONE_SHELL
#ifdef CONFIG_FEATURE_SH_STANDALONE_SHELL
{
int argc_l;
char** argv_l=child->argv;
char *name = child->argv[0];
#ifdef BB_FEATURE_SH_APPLETS_ALWAYS_WIN
#ifdef CONFIG_FEATURE_SH_APPLETS_ALWAYS_WIN
/* Following discussions from November 2000 on the busybox mailing
* list, the default configuration, (without
* get_last_path_component()) lets the user force use of an
* external command by specifying the full (with slashes) filename.
* If you enable BB_FEATURE_SH_APPLETS_ALWAYS_WIN, then applets
* If you enable CONFIG_FEATURE_SH_APPLETS_ALWAYS_WIN then applets
* _aways_ override external commands, so if you want to run
* /bin/cat, it will use BusyBox cat even if /bin/cat exists on the
* filesystem and is _not_ busybox. Some systems may want this,
@ -1524,13 +1524,26 @@ static int run_pipe_real(struct pipe *pi)
struct child_prog *child;
struct built_in_command *x;
char *p;
# if __GNUC__
/* Avoid longjmp clobbering */
(void) &i;
(void) &nextin;
(void) &nextout;
(void) &child;
# endif
#else
int nextin;
int flag = do_repeat ? CMD_FLAG_REPEAT : 0;
struct child_prog *child;
cmd_tbl_t *cmdtp;
char *p;
#endif
# if __GNUC__
/* Avoid longjmp clobbering */
(void) &i;
(void) &nextin;
(void) &child;
# endif
#endif /* __U_BOOT__ */
nextin = 0;
#ifndef __U_BOOT__
@ -3194,7 +3207,7 @@ static void *xrealloc(void *ptr, size_t size)
/* Make sure we have a controlling tty. If we get started under a job
* aware app (like bash for example), make sure we are now in charge so
* we don't fight over who gets the foreground */
static void setup_job_control()
static void setup_job_control(void)
{
static pid_t shell_pgrp;
/* Loop until we are in the foreground. */
@ -3243,7 +3256,7 @@ int hush_main(int argc, char **argv)
/* Initialize some more globals to non-zero values */
set_cwd();
#ifdef BB_FEATURE_COMMAND_EDITING
#ifdef CONFIG_FEATURE_COMMAND_EDITING
cmdedit_set_initial_prompt();
#else
PS1 = NULL;
@ -3312,7 +3325,10 @@ int hush_main(int argc, char **argv)
debug_printf("\ninteractive=%d\n", interactive);
if (interactive) {
/* Looks like they want an interactive shell */
fprintf(stdout, "\nhush -- the humble shell v0.01 (testing)\n\n");
#ifndef CONFIG_FEATURE_SH_EXTRA_QUIET
printf( "\n\n" BB_BANNER " hush - the humble shell v0.01 (testing)\n");
printf( "Enter 'help' for a list of built-in commands.\n\n");
#endif
setup_job_control();
}
@ -3327,7 +3343,7 @@ int hush_main(int argc, char **argv)
input = xfopen(argv[optind], "r");
opt = parse_file_outer(input);
#ifdef BB_FEATURE_CLEAN_UP
#ifdef CONFIG_FEATURE_CLEAN_UP
fclose(input);
if (cwd && cwd != unknown)
free((char*)cwd);

33
cpu/mpc8xx/serial.c
View File

@ -24,6 +24,7 @@
#include <common.h>
#include <commproc.h>
#include <command.h>
#include <watchdog.h>
#if !defined(CONFIG_8xx_CONS_NONE) /* No Console at all */
@ -265,20 +266,16 @@ serial_putc(const char c)
*/
buf = (char *)tbdf->cbd_bufaddr;
#if 0
__asm__("eieio");
while (tbdf->cbd_sc & BD_SC_READY)
__asm__("eieio");
#endif
*buf = c;
tbdf->cbd_datlen = 1;
tbdf->cbd_sc |= BD_SC_READY;
__asm__("eieio");
#if 1
while (tbdf->cbd_sc & BD_SC_READY)
while (tbdf->cbd_sc & BD_SC_READY) {
WATCHDOG_RESET ();
__asm__("eieio");
#endif
}
}
int
@ -298,8 +295,10 @@ serial_getc(void)
/* Wait for character to show up.
*/
buf = (unsigned char *)rbdf->cbd_bufaddr;
while (rbdf->cbd_sc & BD_SC_EMPTY)
;
WATCHDOG_RESET ();
c = *buf;
rbdf->cbd_sc |= BD_SC_EMPTY;
@ -524,20 +523,16 @@ serial_putc(const char c)
*/
buf = (char *)tbdf->cbd_bufaddr;
#if 0
__asm__("eieio");
while (tbdf->cbd_sc & BD_SC_READY)
__asm__("eieio");
#endif
*buf = c;
tbdf->cbd_datlen = 1;
tbdf->cbd_sc |= BD_SC_READY;
__asm__("eieio");
#if 1
while (tbdf->cbd_sc & BD_SC_READY)
while (tbdf->cbd_sc & BD_SC_READY) {
__asm__("eieio");
#endif
WATCHDOG_RESET ();
}
}
int
@ -557,8 +552,10 @@ serial_getc(void)
/* Wait for character to show up.
*/
buf = (unsigned char *)rbdf->cbd_bufaddr;
while (rbdf->cbd_sc & BD_SC_EMPTY)
;
WATCHDOG_RESET ();
c = *buf;
rbdf->cbd_sc |= BD_SC_EMPTY;

2
cpu/mpc8xx/start.S
View File

@ -583,7 +583,7 @@ relocate_code:
/* First our own GOT */
add r14, r14, r15
/* the the one used by the C code */
/* then the one used by the C code */
add r30, r30, r15
/*

9
include/configs/lwmon.h
View File

@ -203,7 +203,14 @@
#define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */
#define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
/*
* When the watchdog is enabled, output must be fast enough in Linux.
*/
#ifdef CONFIG_WATCHDOG
#define CFG_BAUDRATE_TABLE { 38400, 57600, 115200 }
#else
#define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
#endif
/*
* Low Level Configuration Settings

43
tools/env/README vendored
View File

@ -2,28 +2,43 @@
This is a demo implementation of a Linux command line tool to access
the U-Boot's environment variables.
Configuration is done via #defines in the fw_env.h file. The
For the run-time utiltity configuration uncomment the line
#define CONFIG_FILE "/etc/fw_env.config"
in fw_env.h.
See comments in the fw_env.config file for definitions for the
particular board.
Configuration can also be done via #defines in the fw_env.h file. The
following lines are relevant:
#define HAVE_REDUND /* For systems with 2 env sectors */
#define DEVICE1_NAME "/dev/mtd1"
#define DEVICE2_NAME "/dev/mtd2"
#define ENV1_SIZE 0x4000
#define DEVICE1_ESIZE 0x4000
#define ENV2_SIZE 0x4000
#define DEVICE2_ESIZE 0x4000
#define DEVICE1_OFFSET 0x0000
#define ENV1_SIZE 0x4000
#define DEVICE1_ESIZE 0x4000
#define DEVICE2_OFFSET 0x0000
#define ENV2_SIZE 0x4000
#define DEVICE2_ESIZE 0x4000
Current configuration matches the environment layout of the TRAB
board.
Un-define HAVE_REDUND, if you want to use the utlities on a system
that does not have support for redundant environment enabled. The
DEVICEx_NAME constants define which MTD character device(s) is (are)
to be used to access the environment. If HAVE_REDUND is undefined,
DEVICE2_NAME is ignored, as is ENV2_SIZE and DEVICE2_ESIZE. ENVx_SIZE
defines the size in bytes taken by the environment, which may be less
then flash sector size, if the environment takes less then 1 sector.
that does not have support for redundant environment enabled.
If HAVE_REDUND is undefined, DEVICE2_NAME is ignored,
as is ENV2_SIZE and DEVICE2_ESIZE.
The DEVICEx_NAME constants define which MTD character devices are to
be used to access the environment.
The DEVICEx_OFFSET constants define the environment offset within the
MTD character device.
ENVx_SIZE defines the size in bytes taken by the environment, which
may be less then flash sector size, if the environment takes less
then 1 sector.
DEVICEx_ESIZE defines the size of the first sector in the flash
partition where the environment resides. It is assumed that the
environment is located in the first ENVx_SIZE bytes of the device
DEVICEx_NAME.
partition where the environment resides.

338
tools/env/fw_env.c vendored
View File

@ -41,6 +41,7 @@ typedef unsigned char uchar;
typedef struct envdev_s {
uchar devname[16]; /* Device name */
ulong devoff; /* Device offset */
ulong env_size; /* environment size */
ulong erase_size; /* device erase size */
} envdev_t;
@ -49,16 +50,13 @@ static envdev_t envdevices[2];
static int curdev;
#define DEVNAME(i) envdevices[(i)].devname
#define DEVOFFSET(i) envdevices[(i)].devoff
#define ENVSIZE(i) envdevices[(i)].env_size
#define DEVESIZE(i) envdevices[(i)].erase_size
#define CFG_ENV_SIZE ENVSIZE(curdev)
#ifdef HAVE_REDUND
#define ENV_SIZE (CFG_ENV_SIZE - sizeof(long) - 1)
#else
#define ENV_SIZE (CFG_ENV_SIZE - sizeof(long))
#endif
#define ENV_SIZE getenvsize()
typedef struct environment_s {
ulong crc; /* CRC32 over data bytes */
@ -67,46 +65,103 @@ typedef struct environment_s {
} env_t;
static env_t environment;
static int valid = 0;
#ifdef HAVE_REDUND
static int HaveRedundEnv = 0;
static uchar active_flag = 1;
static uchar obsolete_flag = 0;
#endif
#define XMK_STR(x) #x
#define MK_STR(x) XMK_STR(x)
static uchar default_environment[] = {
#ifdef CONFIG_BOOTARGS
#if defined(CONFIG_BOOTARGS)
"bootargs=" CONFIG_BOOTARGS "\0"
#endif
#ifdef CONFIG_BOOTCOMMAND
#if defined(CONFIG_BOOTCOMMAND)
"bootcmd=" CONFIG_BOOTCOMMAND "\0"
#endif
#if (CONFIG_BOOTDELAY >= 0)
#if defined(CONFIG_RAMBOOTCOMMAND)
"ramboot=" CONFIG_RAMBOOTCOMMAND "\0"
#endif
#if defined(CONFIG_NFSBOOTCOMMAND)
"nfsboot=" CONFIG_NFSBOOTCOMMAND "\0"
#endif
#if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0)
"bootdelay=" MK_STR(CONFIG_BOOTDELAY) "\0"
#endif
#if (CONFIG_BAUDRATE >= 0)
#if defined(CONFIG_BAUDRATE) && (CONFIG_BAUDRATE >= 0)
"baudrate=" MK_STR(CONFIG_BAUDRATE) "\0"
#endif
#ifdef CONFIG_LOADS_ECHO
"loads_echo=" MK_STR(CONFIG_LOADS_ECHO) "\0"
#endif
#ifdef CONFIG_ETHADDR
"ethaddr=" MK_STR(CONFIG_ETHADDR) "\0"
#endif
#ifdef CONFIG_ETH1ADDR
"eth1addr=" MK_STR(CONFIG_ETH1ADDR) "\0"
#endif
#ifdef CONFIG_ETH2ADDR
"eth2addr=" MK_STR(CONFIG_ETH2ADDR) "\0"
#endif
#ifdef CONFIG_ETHPRIME
"ethprime=" CONFIG_ETHPRIME "\0"
#endif
#ifdef CONFIG_IPADDR
"ipaddr=" MK_STR(CONFIG_IPADDR) "\0"
#endif
#ifdef CONFIG_SERVERIP
"serverip=" MK_STR(CONFIG_SERVERIP) "\0"
#endif
"\0"
#ifdef CFG_AUTOLOAD
"autoload=" CFG_AUTOLOAD "\0"
#endif
#ifdef CONFIG_ROOTPATH
"rootpath=" MK_STR(CONFIG_ROOTPATH) "\0"
#endif
#ifdef CONFIG_GATEWAYIP
"gatewayip=" MK_STR(CONFIG_GATEWAYIP) "\0"
#endif
#ifdef CONFIG_NETMASK
"netmask=" MK_STR(CONFIG_NETMASK) "\0"
#endif
#ifdef CONFIG_HOSTNAME
"hostname=" MK_STR(CONFIG_HOSTNAME) "\0"
#endif
#ifdef CONFIG_BOOTFILE
"bootfile=" MK_STR(CONFIG_BOOTFILE) "\0"
#endif
#ifdef CONFIG_LOADADDR
"loadaddr=" MK_STR(CONFIG_LOADADDR) "\0"
#endif
#ifdef CONFIG_PREBOOT
"preboot=" CONFIG_PREBOOT "\0"
#endif
#ifdef CONFIG_CLOCKS_IN_MHZ
"clocks_in_mhz=" "1" "\0"
#endif
#ifdef CONFIG_EXTRA_ENV_SETTINGS
CONFIG_EXTRA_ENV_SETTINGS
#endif
"\0" /* Termimate env_t data with 2 NULs */
};
static int flash_io (int mode);
static uchar *envmatch(uchar *s1, uchar *s2);
static int env_init(void);
static int parse_config(void);
#if defined(CONFIG_FILE)
static int get_config(char *);
#endif
static inline ulong getenvsize(void)
{
ulong rc = CFG_ENV_SIZE - sizeof(long);
if (HaveRedundEnv)
rc -= sizeof(char);
return rc;
}
/*
* Search the environment for a variable.
@ -338,34 +393,37 @@ static int flash_io (int mode)
return (-1);
}
len = sizeof(environment.crc) + sizeof(environment.flags);
len = sizeof(environment.crc);
if (HaveRedundEnv) {
len += sizeof(environment.flags);
}
if (mode == O_RDWR) {
#ifdef HAVE_REDUND
/* switch to next partition for writing */
otherdev = !curdev;
if ((fdr = open(DEVNAME(otherdev), mode)) < 0) {
fprintf (stderr,
"Can't open %s: %s\n",
DEVNAME(otherdev), strerror(errno));
return (-1);
if (HaveRedundEnv) {
/* switch to next partition for writing */
otherdev = !curdev;
if ((fdr = open(DEVNAME(otherdev), mode)) < 0) {
fprintf (stderr,
"Can't open %s: %s\n",
DEVNAME(otherdev), strerror(errno));
return (-1);
}
} else {
otherdev = curdev;
fdr = fd;
}
#else
otherdev = curdev;
fdr = fd;
len = sizeof(environment.crc);
#endif
printf("Unlocking flash...\n");
erase.length = DEVESIZE(otherdev);
erase.start = 0;
erase.start = DEVOFFSET(otherdev);
ioctl (fdr, MEMUNLOCK, &erase);
#ifdef HAVE_REDUND
erase.length = DEVESIZE(curdev);
erase.start = 0;
ioctl (fd, MEMUNLOCK, &erase);
environment.flags = active_flag;
#endif
if (HaveRedundEnv) {
erase.length = DEVESIZE(curdev);
erase.start = DEVOFFSET(curdev);
ioctl (fd, MEMUNLOCK, &erase);
environment.flags = active_flag;
}
printf("Done\n");
resid = DEVESIZE(otherdev) - CFG_ENV_SIZE;
if (resid) {
@ -375,22 +433,16 @@ static int flash_io (int mode)
resid, strerror(errno));
return (-1);
}
if (lseek (fdr, CFG_ENV_SIZE, SEEK_SET) == -1) {
if (lseek (fdr, DEVOFFSET(otherdev) + CFG_ENV_SIZE, SEEK_SET) == -1) {
fprintf (stderr,
"seek error on %s: %s\n",
DEVNAME(curdev), strerror(errno));
DEVNAME(otherdev), strerror(errno));
return (-1);
}
if ((rc = read (fdr, data, resid)) != resid) {
fprintf (stderr,
"read error on %s: %s\n",
DEVNAME(curdev), strerror(errno));
return (-1);
}
if (lseek (fdr, 0, SEEK_SET) == -1) {
fprintf (stderr,
"seek error on %s: %s\n",
DEVNAME(curdev), strerror(errno));
DEVNAME(otherdev), strerror(errno));
return (-1);
}
}
@ -398,6 +450,7 @@ static int flash_io (int mode)
printf("Erasing old environment...\n");
erase.length = DEVESIZE(otherdev);
erase.start = DEVOFFSET(otherdev);
if (ioctl (fdr, MEMERASE, &erase) != 0) {
fprintf (stderr, "MTD erase error on %s: %s\n",
DEVNAME(otherdev), strerror(errno));
@ -407,6 +460,12 @@ static int flash_io (int mode)
printf("Done\n");
printf("Writing environment to %s...\n",DEVNAME(otherdev));
if (lseek (fdr, DEVOFFSET(otherdev), SEEK_SET) == -1) {
fprintf (stderr,
"seek error on %s: %s\n",
DEVNAME(otherdev), strerror(errno));
return (-1);
}
if (write(fdr, &environment, len) != len) {
fprintf (stderr,
"CRC write error on %s: %s\n",
@ -428,43 +487,47 @@ static int flash_io (int mode)
}
free(data);
}
#ifdef HAVE_REDUND
/* change flag on current active env partition */
if (lseek (fd, sizeof(ulong), SEEK_SET) == -1) {
fprintf (stderr,
"seek error on %s: %s\n",
DEVNAME(curdev), strerror(errno));
return (-1);
if (HaveRedundEnv) {
/* change flag on current active env partition */
if (lseek (fd, DEVOFFSET(curdev) + sizeof(ulong), SEEK_SET) == -1) {
fprintf (stderr,
"seek error on %s: %s\n",
DEVNAME(curdev), strerror(errno));
return (-1);
}
if (write (fd, &obsolete_flag, sizeof(obsolete_flag)) !=
sizeof(obsolete_flag)) {
fprintf (stderr,
"Write error on %s: %s\n",
DEVNAME(curdev), strerror(errno));
return (-1);
}
}
if (write (fd, &obsolete_flag, sizeof(obsolete_flag)) !=
sizeof(obsolete_flag)) {
fprintf (stderr,
"Write error on %s: %s\n",
DEVNAME(curdev), strerror(errno));
return (-1);
}
#endif
printf("Done\n");
printf("Locking ...\n");
erase.length = DEVESIZE(otherdev);
erase.start = 0;
erase.start = DEVOFFSET(otherdev);
ioctl (fdr, MEMLOCK, &erase);
#ifdef HAVE_REDUND
erase.length = DEVESIZE(curdev);
erase.start = 0;
ioctl (fd, MEMLOCK, &erase);
if (close(fdr)) {
fprintf (stderr,
"I/O error on %s: %s\n",
DEVNAME(otherdev), strerror(errno));
return (-1);
if (HaveRedundEnv) {
erase.length = DEVESIZE(curdev);
erase.start = DEVOFFSET(curdev);
ioctl (fd, MEMLOCK, &erase);
if (close(fdr)) {
fprintf (stderr,
"I/O error on %s: %s\n",
DEVNAME(otherdev), strerror(errno));
return (-1);
}
}
#endif
printf("Done\n");
} else {
#ifndef HAVE_REDUND
len = sizeof(environment.crc);
#endif
if (lseek (fd, DEVOFFSET(curdev), SEEK_SET) == -1) {
fprintf (stderr,
"seek error on %s: %s\n",
DEVNAME(curdev), strerror(errno));
return (-1);
}
if (read (fd, &environment, len) != len) {
fprintf (stderr,
"CRC read error on %s: %s\n",
@ -515,56 +578,52 @@ static int env_init(void)
{
int crc1, crc1_ok;
uchar *addr1;
#ifdef HAVE_REDUND
int crc2, crc2_ok;
uchar flag1, flag2, *addr2;
#endif
if (parse_config()) /* should fill envdevices */
return 1;
if (!valid) {
if (parse_config()) /* should fill envdevices */
return 1;
if ((addr1 = calloc (1, ENV_SIZE)) == NULL) {
fprintf (stderr,
"Not enough memory for environment (%ld bytes)\n",
ENV_SIZE);
return (errno);
}
/* read environment from FLASH to local buffer */
environment.data = addr1;
curdev = 0;
if (flash_io (O_RDONLY)) {
return (errno);
}
crc1_ok = ((crc1 = crc32(0, environment.data, ENV_SIZE))
== environment.crc);
#ifndef HAVE_REDUND
if ((addr1 = calloc (1, ENV_SIZE)) == NULL) {
fprintf (stderr,
"Not enough memory for environment (%ld bytes)\n",
ENV_SIZE);
return (errno);
}
/* read environment from FLASH to local buffer */
environment.data = addr1;
curdev = 0;
if (flash_io (O_RDONLY)) {
return (errno);
}
crc1_ok = ((crc1 = crc32(0, environment.data, ENV_SIZE))
== environment.crc);
if (!HaveRedundEnv) {
if (!crc1_ok) {
fprintf (stderr,
"Warning: Bad CRC, using default environment\n");
"Warning: Bad CRC, using default environment\n");
environment.data = default_environment;
free(addr1);
}
#else
} else {
flag1 = environment.flags;
curdev = 1;
if ((addr2 = calloc (1, ENV_SIZE)) == NULL) {
fprintf (stderr,
"Not enough memory for environment (%ld bytes)\n",
ENV_SIZE);
"Not enough memory for environment (%ld bytes)\n",
ENV_SIZE);
return (errno);
}
environment.data = addr2;
if (flash_io (O_RDONLY)) {
return (errno);
}
crc2_ok = ((crc2 = crc32(0, environment.data, ENV_SIZE))
== environment.crc);
flag2 = environment.flags;
@ -585,7 +644,7 @@ static int env_init(void)
}
else if (! crc1_ok && ! crc2_ok) {
fprintf (stderr,
"Warning: Bad CRC, using default environment\n");
"Warning: Bad CRC, using default environment\n");
environment.data = default_environment;
curdev = 0;
free(addr2);
@ -626,8 +685,6 @@ static int env_init(void)
curdev = 1;
free(addr1);
}
#endif
valid = 1;
}
return (0);
}
@ -637,26 +694,75 @@ static int parse_config()
{
struct stat st;
if (stat (DEVICE1_NAME, &st)) {
fprintf (stderr,
"Cannot access MTD device %s: %s\n",
DEVICE1_NAME, strerror(errno));
#if defined(CONFIG_FILE)
/* Fills in DEVNAME(), ENVSIZE(), DEVESIZE(). Or don't. */
if (get_config(CONFIG_FILE)) {
fprintf (stderr,
"Cannot parse config file: %s\n",
strerror(errno));
return 1;
}
#else
strcpy(DEVNAME(0), DEVICE1_NAME);
DEVOFFSET(0) = DEVICE1_OFFSET;
ENVSIZE(0) = ENV1_SIZE;
DEVESIZE(0) = DEVICE1_ESIZE;
#ifdef HAVE_REDUND
if (stat (DEVICE2_NAME, &st)) {
fprintf (stderr,
"Cannot access MTD device %s: %s\n",
DEVICE2_NAME, strerror(errno));
return 1;
}
strcpy(DEVNAME(1), DEVICE2_NAME);
DEVOFFSET(1) = DEVICE2_OFFSET;
ENVSIZE(1) = ENV2_SIZE;
DEVESIZE(1) = DEVICE2_ESIZE;
HaveRedundEnv = 1;
#endif
#endif
if (stat (DEVNAME(0), &st)) {
fprintf (stderr,
"Cannot access MTD device %s: %s\n",
DEVNAME(0), strerror(errno));
return 1;
}
if (HaveRedundEnv && stat (DEVNAME(1), &st)) {
fprintf (stderr,
"Cannot access MTD device %s: %s\n",
DEVNAME(2), strerror(errno));
return 1;
}
return 0;
}
#if defined(CONFIG_FILE)
static int get_config (char *fname)
{
FILE *fp;
int i = 0;
int rc;
char dump[128];
if ((fp = fopen(fname, "r")) == NULL) {
return 1;
}
while ((i < 2) &&
((rc = fscanf (fp, "%s %lx %lx %lx",
DEVNAME(i), &DEVOFFSET(i), &ENVSIZE(i), &DEVESIZE(i))) != EOF)) {
/* Skip incomplete conversions and comment strings */
if ((rc < 3) || (*DEVNAME(i) == '#')) {
fgets (dump, sizeof(dump), fp); /* Consume till end */
continue;
}
i++;
}
fclose(fp);
HaveRedundEnv = i - 1;
if (!i) { /* No valid entries found */
errno = EINVAL;
return 1;
} else
return 0;
}
#endif

7
tools/env/fw_env.config vendored Normal file
View File

@ -0,0 +1,7 @@
# Configuration file for fw_(printenv/saveenv) utility.
# Up to two entries are valid, in this case the redundand
# environment sector is assumed present.
# MTD device name Device offset Env. size Flash sector size
/dev/mtd1 0x0000 0x4000 0x4000
/dev/mtd2 0x0000 0x4000 0x4000

10
tools/env/fw_env.h vendored
View File

@ -21,11 +21,21 @@
* MA 02111-1307 USA
*/
/*
* To build the utility with the run-time configuration
* uncomment the next line.
* See included "fw_env.config" sample file (TRAB board)
* for notes on configuration.
*/
/*#define CONFIG_FILE "/etc/fw_env.config" */
#define HAVE_REDUND /* For systems with 2 env sectors */
#define DEVICE1_NAME "/dev/mtd1"
#define DEVICE2_NAME "/dev/mtd2"
#define DEVICE1_OFFSET 0x0000
#define ENV1_SIZE 0x4000
#define DEVICE1_ESIZE 0x4000
#define DEVICE2_OFFSET 0x0000
#define ENV2_SIZE 0x4000
#define DEVICE2_ESIZE 0x4000