mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-27 07:01:24 +00:00
5368c55d4c
Kill multiple occurances and redeclaration of MK_STR in favor of __stringify(). Signed-off-by: Marek Vasut <marex@denx.de> Cc: Wolfgang Denk <wd@denx.de> Signed-off-by: Tom Rini <trini@ti.com>
314 lines
7.3 KiB
C
314 lines
7.3 KiB
C
/*
|
|
* (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.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <environment.h>
|
|
#include <linux/stddef.h>
|
|
#include <search.h>
|
|
#include <errno.h>
|
|
#include <malloc.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
/************************************************************************
|
|
* Default settings to be used when no valid environment is found
|
|
*/
|
|
|
|
const uchar default_environment[] = {
|
|
#ifdef CONFIG_BOOTARGS
|
|
"bootargs=" CONFIG_BOOTARGS "\0"
|
|
#endif
|
|
#ifdef CONFIG_BOOTCOMMAND
|
|
"bootcmd=" CONFIG_BOOTCOMMAND "\0"
|
|
#endif
|
|
#ifdef CONFIG_RAMBOOTCOMMAND
|
|
"ramboot=" CONFIG_RAMBOOTCOMMAND "\0"
|
|
#endif
|
|
#ifdef CONFIG_NFSBOOTCOMMAND
|
|
"nfsboot=" CONFIG_NFSBOOTCOMMAND "\0"
|
|
#endif
|
|
#if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0)
|
|
"bootdelay=" __stringify(CONFIG_BOOTDELAY) "\0"
|
|
#endif
|
|
#if defined(CONFIG_BAUDRATE) && (CONFIG_BAUDRATE >= 0)
|
|
"baudrate=" __stringify(CONFIG_BAUDRATE) "\0"
|
|
#endif
|
|
#ifdef CONFIG_LOADS_ECHO
|
|
"loads_echo=" __stringify(CONFIG_LOADS_ECHO) "\0"
|
|
#endif
|
|
#ifdef CONFIG_ETHADDR
|
|
"ethaddr=" __stringify(CONFIG_ETHADDR) "\0"
|
|
#endif
|
|
#ifdef CONFIG_ETH1ADDR
|
|
"eth1addr=" __stringify(CONFIG_ETH1ADDR) "\0"
|
|
#endif
|
|
#ifdef CONFIG_ETH2ADDR
|
|
"eth2addr=" __stringify(CONFIG_ETH2ADDR) "\0"
|
|
#endif
|
|
#ifdef CONFIG_ETH3ADDR
|
|
"eth3addr=" __stringify(CONFIG_ETH3ADDR) "\0"
|
|
#endif
|
|
#ifdef CONFIG_ETH4ADDR
|
|
"eth4addr=" __stringify(CONFIG_ETH4ADDR) "\0"
|
|
#endif
|
|
#ifdef CONFIG_ETH5ADDR
|
|
"eth5addr=" __stringify(CONFIG_ETH5ADDR) "\0"
|
|
#endif
|
|
#ifdef CONFIG_ETHPRIME
|
|
"ethprime=" CONFIG_ETHPRIME "\0"
|
|
#endif
|
|
#ifdef CONFIG_IPADDR
|
|
"ipaddr=" __stringify(CONFIG_IPADDR) "\0"
|
|
#endif
|
|
#ifdef CONFIG_SERVERIP
|
|
"serverip=" __stringify(CONFIG_SERVERIP) "\0"
|
|
#endif
|
|
#ifdef CONFIG_SYS_AUTOLOAD
|
|
"autoload=" CONFIG_SYS_AUTOLOAD "\0"
|
|
#endif
|
|
#ifdef CONFIG_PREBOOT
|
|
"preboot=" CONFIG_PREBOOT "\0"
|
|
#endif
|
|
#ifdef CONFIG_ROOTPATH
|
|
"rootpath=" CONFIG_ROOTPATH "\0"
|
|
#endif
|
|
#ifdef CONFIG_GATEWAYIP
|
|
"gatewayip=" __stringify(CONFIG_GATEWAYIP) "\0"
|
|
#endif
|
|
#ifdef CONFIG_NETMASK
|
|
"netmask=" __stringify(CONFIG_NETMASK) "\0"
|
|
#endif
|
|
#ifdef CONFIG_HOSTNAME
|
|
"hostname=" __stringify(CONFIG_HOSTNAME) "\0"
|
|
#endif
|
|
#ifdef CONFIG_BOOTFILE
|
|
"bootfile=" CONFIG_BOOTFILE "\0"
|
|
#endif
|
|
#ifdef CONFIG_LOADADDR
|
|
"loadaddr=" __stringify(CONFIG_LOADADDR) "\0"
|
|
#endif
|
|
#ifdef CONFIG_CLOCKS_IN_MHZ
|
|
"clocks_in_mhz=1\0"
|
|
#endif
|
|
#if defined(CONFIG_PCI_BOOTDELAY) && (CONFIG_PCI_BOOTDELAY > 0)
|
|
"pcidelay=" __stringify(CONFIG_PCI_BOOTDELAY)"\0"
|
|
#endif
|
|
#ifdef CONFIG_ENV_VARS_UBOOT_CONFIG
|
|
"arch=" CONFIG_SYS_ARCH "\0"
|
|
"cpu=" CONFIG_SYS_CPU "\0"
|
|
"board=" CONFIG_SYS_BOARD "\0"
|
|
#ifdef CONFIG_SYS_VENDOR
|
|
"vendor=" CONFIG_SYS_VENDOR "\0"
|
|
#endif
|
|
#ifdef CONFIG_SYS_SOC
|
|
"soc=" CONFIG_SYS_SOC "\0"
|
|
#endif
|
|
#endif
|
|
#ifdef CONFIG_EXTRA_ENV_SETTINGS
|
|
CONFIG_EXTRA_ENV_SETTINGS
|
|
#endif
|
|
"\0"
|
|
};
|
|
|
|
struct hsearch_data env_htab = {
|
|
.apply = env_check_apply,
|
|
};
|
|
|
|
static uchar __env_get_char_spec(int index)
|
|
{
|
|
return *((uchar *)(gd->env_addr + index));
|
|
}
|
|
uchar env_get_char_spec(int)
|
|
__attribute__((weak, alias("__env_get_char_spec")));
|
|
|
|
static uchar env_get_char_init(int index)
|
|
{
|
|
/* if crc was bad, use the default environment */
|
|
if (gd->env_valid)
|
|
return env_get_char_spec(index);
|
|
else
|
|
return default_environment[index];
|
|
}
|
|
|
|
uchar env_get_char_memory(int index)
|
|
{
|
|
return *env_get_addr(index);
|
|
}
|
|
|
|
uchar env_get_char(int index)
|
|
{
|
|
/* if relocated to RAM */
|
|
if (gd->flags & GD_FLG_RELOC)
|
|
return env_get_char_memory(index);
|
|
else
|
|
return env_get_char_init(index);
|
|
}
|
|
|
|
const uchar *env_get_addr(int index)
|
|
{
|
|
if (gd->env_valid)
|
|
return (uchar *)(gd->env_addr + index);
|
|
else
|
|
return &default_environment[index];
|
|
}
|
|
|
|
void set_default_env(const char *s)
|
|
{
|
|
/*
|
|
* By default, do not apply changes as they will eventually
|
|
* be applied by someone else
|
|
*/
|
|
int do_apply = 0;
|
|
if (sizeof(default_environment) > ENV_SIZE) {
|
|
puts("*** Error - default environment is too large\n\n");
|
|
return;
|
|
}
|
|
|
|
if (s) {
|
|
if (*s == '!') {
|
|
printf("*** Warning - %s, "
|
|
"using default environment\n\n",
|
|
s + 1);
|
|
} else {
|
|
/*
|
|
* This set_to_default was explicitly asked for
|
|
* by the user, as opposed to being a recovery
|
|
* mechanism. Therefore we check every single
|
|
* variable and apply changes to the system
|
|
* right away (e.g. baudrate, console).
|
|
*/
|
|
do_apply = 1;
|
|
puts(s);
|
|
}
|
|
} else {
|
|
puts("Using default environment\n\n");
|
|
}
|
|
|
|
if (himport_r(&env_htab, (char *)default_environment,
|
|
sizeof(default_environment), '\0', 0,
|
|
0, NULL, do_apply) == 0)
|
|
error("Environment import failed: errno = %d\n", errno);
|
|
|
|
gd->flags |= GD_FLG_ENV_READY;
|
|
}
|
|
|
|
|
|
/* [re]set individual variables to their value in the default environment */
|
|
int set_default_vars(int nvars, char * const vars[])
|
|
{
|
|
/*
|
|
* Special use-case: import from default environment
|
|
* (and use \0 as a separator)
|
|
*/
|
|
return himport_r(&env_htab, (const char *)default_environment,
|
|
sizeof(default_environment), '\0', H_NOCLEAR,
|
|
nvars, vars, 1 /* do_apply */);
|
|
}
|
|
|
|
#ifndef CONFIG_SPL_BUILD
|
|
/*
|
|
* 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)
|
|
{
|
|
env_t *ep = (env_t *)buf;
|
|
|
|
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_r(&env_htab, (char *)ep->data, ENV_SIZE, '\0', 0,
|
|
0, NULL, 0 /* do_apply */)) {
|
|
gd->flags |= GD_FLG_ENV_READY;
|
|
return 1;
|
|
}
|
|
|
|
error("Cannot import environment: errno = %d\n", errno);
|
|
|
|
set_default_env("!import failed");
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
void env_relocate(void)
|
|
{
|
|
#if defined(CONFIG_NEEDS_MANUAL_RELOC)
|
|
env_reloc();
|
|
#endif
|
|
if (gd->env_valid == 0) {
|
|
#if defined(CONFIG_ENV_IS_NOWHERE) || defined(CONFIG_SPL_BUILD)
|
|
/* Environment not changable */
|
|
set_default_env(NULL);
|
|
#else
|
|
bootstage_error(BOOTSTAGE_ID_NET_CHECKSUM);
|
|
set_default_env("!bad CRC");
|
|
#endif
|
|
} else {
|
|
env_relocate_spec();
|
|
}
|
|
}
|
|
|
|
#if defined(CONFIG_AUTO_COMPLETE) && !defined(CONFIG_SPL_BUILD)
|
|
int env_complete(char *var, int maxv, char *cmdv[], int bufsz, char *buf)
|
|
{
|
|
ENTRY *match;
|
|
int found, idx;
|
|
|
|
idx = 0;
|
|
found = 0;
|
|
cmdv[0] = NULL;
|
|
|
|
while ((idx = hmatch_r(var, idx, &match, &env_htab))) {
|
|
int vallen = strlen(match->key) + 1;
|
|
|
|
if (found >= maxv - 2 || bufsz < vallen)
|
|
break;
|
|
|
|
cmdv[found++] = buf;
|
|
memcpy(buf, match->key, vallen);
|
|
buf += vallen;
|
|
bufsz -= vallen;
|
|
}
|
|
|
|
qsort(cmdv, found, sizeof(cmdv[0]), strcmp_compar);
|
|
|
|
if (idx)
|
|
cmdv[found++] = "...";
|
|
|
|
cmdv[found] = NULL;
|
|
return found;
|
|
}
|
|
#endif
|