* (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
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
env_t *env_ptr;
char *env_name_spec = "EEPROM";
-int env_eeprom_bus = -1;
static int eeprom_bus_read(unsigned dev_addr, unsigned offset,
uchar *buffer, unsigned cnt)
#if defined(CONFIG_I2C_ENV_EEPROM_BUS)
int old_bus = i2c_get_bus_num();
- if (gd->flags & GD_FLG_RELOC) {
- if (env_eeprom_bus == -1) {
- I2C_MUX_DEVICE *dev = NULL;
- dev = i2c_mux_ident_muxstring(
- (uchar *)CONFIG_I2C_ENV_EEPROM_BUS);
- if (dev != NULL)
- env_eeprom_bus = dev->busid;
- else
- printf("error adding env eeprom bus.\n");
- }
- if (old_bus != env_eeprom_bus) {
- i2c_set_bus_num(env_eeprom_bus);
- old_bus = env_eeprom_bus;
- }
- } else {
- rcode = i2c_mux_ident_muxstring_f(
- (uchar *)CONFIG_I2C_ENV_EEPROM_BUS);
- }
+ if (old_bus != CONFIG_I2C_ENV_EEPROM_BUS)
+ i2c_set_bus_num(CONFIG_I2C_ENV_EEPROM_BUS);
#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);
+ i2c_set_bus_num(old_bus);
#endif
+
return rcode;
}
#if defined(CONFIG_I2C_ENV_EEPROM_BUS)
int old_bus = i2c_get_bus_num();
- rcode = i2c_mux_ident_muxstring_f((uchar *)CONFIG_I2C_ENV_EEPROM_BUS);
+ if (old_bus != CONFIG_I2C_ENV_EEPROM_BUS)
+ i2c_set_bus_num(CONFIG_I2C_ENV_EEPROM_BUS);
#endif
+
rcode = eeprom_write(dev_addr, offset, buffer, cnt);
+
#if defined(CONFIG_I2C_ENV_EEPROM_BUS)
i2c_set_bus_num(old_bus);
#endif
+
return rcode;
}
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
BUG_ON(env_ptr != NULL);
- res = (char *)&env_new.data;
- len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, 0, NULL);
- if (len < 0) {
- error("Cannot export environment: errno = %d\n", errno);
- return 1;
- }
- env_new.crc = crc32(0, env_new.data, ENV_SIZE);
+ rc = env_export(&env_new);
+ if (rc)
+ return rc;
#ifdef CONFIG_ENV_OFFSET_REDUND
if (gd->env_valid == 1) {
#ifdef CONFIG_ENV_OFFSET_REDUND
int env_init(void)
{
+#ifdef ENV_IS_EMBEDDED
ulong len, crc[2], crc_tmp;
unsigned int off, off_env[2];
uchar buf[64], flags[2];
gd->env_addr = off_env[1] + offsetof(env_t, data);
else if (gd->env_valid == 1)
gd->env_addr = off_env[0] + offsetof(env_t, data);
-
+#else
+ gd->env_addr = (ulong)&default_environment[0];
+ gd->env_valid = 1;
+#endif
return 0;
}
#else
int env_init(void)
{
+#ifdef ENV_IS_EMBEDDED
ulong crc, len, new;
unsigned off;
uchar buf[64];
gd->env_addr = 0;
gd->env_valid = 0;
}
-
+#else
+ gd->env_addr = (ulong)&default_environment[0];
+ gd->env_valid = 1;
+#endif
return 0;
}
#endif