X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=common%2Fenv_nvram.c;h=eab0e7be0ecb90bc11f842dbe521e3df3c60f9dc;hb=e3913f56a26dbb49758370320dac477ab0324631;hp=c877f00a6675caf9f62d266355676309d80de4b1;hpb=9314cee6917444ab88bd4e758da7a30975120187;p=oweals%2Fu-boot.git

diff --git a/common/env_nvram.c b/common/env_nvram.c
index c877f00a66..eab0e7be0e 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>
@@ -35,126 +35,102 @@
  * 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 CONFIG_ENV_IS_IN_NVRAM /* Environment is in NVRAM */
-
 #include <command.h>
 #include <environment.h>
 #include <linux/stddef.h>
+#include <search.h>
+#include <errno.h>
 
-#ifdef CFG_NVRAM_ACCESS_ROUTINE
+DECLARE_GLOBAL_DATA_PTR;
+
+#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;
-
-#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;
+	ssize_t	len;
+	char	*res;
+	int	rcode = 0;
+
+	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);
+
+#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 /* CONFIG_ENV_IS_IN_NVRAM */
+	return 0;
+}