/*
- * (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.
- *
- * 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+
*/
/*
* space using its address and data registers. To enable usage of
* NVRAM in those cases I invented the functions 'nvram_read()' and
* 'nvram_write()', which will be activated upon the configuration
- * #define CFG_NVRAM_ACCESS_ROUTINE. Note, that those functions are
+ * #define CONFIG_SYS_NVRAM_ACCESS_ROUTINE. Note, that those functions are
* strongly dependent on the used HW, and must be redefined for each
* board that wants to use them.
*/
#include <common.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#ifdef CFG_ENV_IS_IN_NVRAM /* Environment is in NVRAM */
-
#include <command.h>
#include <environment.h>
#include <linux/stddef.h>
+#include <search.h>
+#include <errno.h>
+
+DECLARE_GLOBAL_DATA_PTR;
-#ifdef CFG_NVRAM_ACCESS_ROUTINE
+#ifdef CONFIG_SYS_NVRAM_ACCESS_ROUTINE
extern void *nvram_read(void *dest, const long src, size_t count);
extern void nvram_write(long dest, const void *src, size_t count);
-env_t *env_ptr = NULL;
+env_t *env_ptr;
#else
-env_t *env_ptr = (env_t *)CFG_ENV_ADDR;
+env_t *env_ptr = (env_t *)CONFIG_ENV_ADDR;
#endif
-char * env_name_spec = "NVRAM";
+char *env_name_spec = "NVRAM";
-extern uchar default_environment[];
-extern int default_environment_size;
-
-extern uchar (*env_get_char)(int);
-extern uchar env_get_char_memory (int index);
-
-#ifdef CONFIG_AMIGAONEG3SE
-uchar env_get_char_spec (int index)
-{
-#ifdef CFG_NVRAM_ACCESS_ROUTINE
- uchar c;
-
- nvram_read(&c, CFG_ENV_ADDR+index, 1);
-
- return c;
-#else
- uchar retval;
- enable_nvram();
- retval = *((uchar *)(gd->env_addr + index));
- disable_nvram();
- return retval;
-#endif
-}
-#else
-uchar env_get_char_spec (int index)
+#ifdef CONFIG_SYS_NVRAM_ACCESS_ROUTINE
+uchar env_get_char_spec(int index)
{
-#ifdef CFG_NVRAM_ACCESS_ROUTINE
uchar c;
- nvram_read(&c, CFG_ENV_ADDR+index, 1);
+ nvram_read(&c, CONFIG_ENV_ADDR + index, 1);
return c;
-#else
- return *((uchar *)(gd->env_addr + index));
-#endif
}
#endif
-void env_relocate_spec (void)
+void env_relocate_spec(void)
{
-#if defined(CFG_NVRAM_ACCESS_ROUTINE)
- nvram_read(env_ptr, CFG_ENV_ADDR, CFG_ENV_SIZE);
+ char buf[CONFIG_ENV_SIZE];
+
+#if defined(CONFIG_SYS_NVRAM_ACCESS_ROUTINE)
+ nvram_read(buf, CONFIG_ENV_ADDR, CONFIG_ENV_SIZE);
#else
- memcpy (env_ptr, (void*)CFG_ENV_ADDR, CFG_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;
-#ifdef CONFIG_AMIGAONEG3SE
- enable_nvram();
-#endif
-#ifdef CFG_NVRAM_ACCESS_ROUTINE
- nvram_write(CFG_ENV_ADDR, env_ptr, CFG_ENV_SIZE);
+ env_t env_new;
+ int rcode = 0;
+
+ rcode = env_export(&env_new);
+ if (rcode)
+ return rcode;
+
+#ifdef CONFIG_SYS_NVRAM_ACCESS_ROUTINE
+ nvram_write(CONFIG_ENV_ADDR, &env_new, CONFIG_ENV_SIZE);
#else
- if (memcpy ((char *)CFG_ENV_ADDR, env_ptr, CFG_ENV_SIZE) == NULL)
- rcode = 1 ;
-#endif
-#ifdef CONFIG_AMIGAONEG3SE
- udelay(10000);
- disable_nvram();
+ 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)
{
-#ifdef CONFIG_AMIGAONEG3SE
- enable_nvram();
-#endif
-#if defined(CFG_NVRAM_ACCESS_ROUTINE)
+#if defined(CONFIG_SYS_NVRAM_ACCESS_ROUTINE)
ulong crc;
uchar data[ENV_SIZE];
- nvram_read (&crc, CFG_ENV_ADDR, sizeof(ulong));
- nvram_read (data, CFG_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)CFG_ENV_ADDR + sizeof(long);
+ gd->env_addr = (ulong)CONFIG_ENV_ADDR + sizeof(long);
#else
if (crc32(0, env_ptr->data, ENV_SIZE) == env_ptr->crc) {
- gd->env_addr = (ulong)&(env_ptr->data);
+ gd->env_addr = (ulong)&env_ptr->data;
#endif
- gd->env_valid = 1;
+ gd->env_valid = 1;
} else {
- gd->env_addr = (ulong)&default_environment[0];
- gd->env_valid = 0;
+ gd->env_addr = (ulong)&default_environment[0];
+ gd->env_valid = 0;
}
-#ifdef CONFIG_AMIGAONEG3SE
- disable_nvram();
-#endif
- return (0);
-}
-#endif /* CFG_ENV_IS_IN_NVRAM */
+ return 0;
+}
projects / karo-tx-uboot.git / blobdiff