Merge branch 'next' of /home/wd/git/u-boot/next

Conflicts:
	include/ppc4xx.h

Signed-off-by: Wolfgang Denk <wd@denx.de>

1 files changed, 55 insertions, 30 deletions

diff --git a/common/env_eeprom.c b/common/env_eeprom.c
index 8fe59f822..792b44ffa 100644
--- a/common/env_eeprom.c
+++ b/common/env_eeprom.c
@@ -1,10 +1,10 @@
 /*
- * (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.
  *
@@ -31,16 +31,19 @@
 #if defined(CONFIG_I2C_ENV_EEPROM_BUS)
 #include <i2c.h>
 #endif
+#include <search.h>
+#include <errno.h>
+#include <linux/compiler.h>	/* for BUG_ON */
 
 DECLARE_GLOBAL_DATA_PTR;
 
 env_t *env_ptr = NULL;
 
-char * env_name_spec = "EEPROM";
+char *env_name_spec = "EEPROM";
 int env_eeprom_bus = -1;
 
-static int eeprom_bus_read (unsigned dev_addr, unsigned offset, uchar *buffer,
-				unsigned cnt)
+static int eeprom_bus_read(unsigned dev_addr, unsigned offset,
+	uchar *buffer, unsigned cnt)
 {
 	int rcode;
 #if defined(CONFIG_I2C_ENV_EEPROM_BUS)
@@ -51,9 +54,9 @@ static int eeprom_bus_read (unsigned dev_addr, unsigned offset, uchar *buffer,
 			I2C_MUX_DEVICE *dev = NULL;
 			dev = i2c_mux_ident_muxstring(
 				(uchar *)CONFIG_I2C_ENV_EEPROM_BUS);
-			if (dev != NULL) {
+			if (dev != NULL)
 				env_eeprom_bus = dev->busid;
-			} else
+			else
 				printf ("error adding env eeprom bus.\n");
 		}
 		if (old_bus != env_eeprom_bus) {
@@ -67,6 +70,7 @@ static int eeprom_bus_read (unsigned dev_addr, unsigned offset, uchar *buffer,
 #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);
@@ -74,8 +78,8 @@ static int eeprom_bus_read (unsigned dev_addr, unsigned offset, uchar *buffer,
 	return rcode;
 }
 
-static int eeprom_bus_write (unsigned dev_addr, unsigned offset, uchar *buffer,
-				unsigned cnt)
+static int eeprom_bus_write(unsigned dev_addr, unsigned offset,
+	uchar *buffer, unsigned cnt)
 {
 	int rcode;
 #if defined(CONFIG_I2C_ENV_EEPROM_BUS)
@@ -83,7 +87,7 @@ static int eeprom_bus_write (unsigned dev_addr, unsigned offset, uchar *buffer,
 
 	rcode = i2c_mux_ident_muxstring_f((uchar *)CONFIG_I2C_ENV_EEPROM_BUS);
 #endif
-	rcode = eeprom_write (dev_addr, offset, buffer, cnt);
+	rcode = eeprom_write(dev_addr, offset, buffer, cnt);
 #if defined(CONFIG_I2C_ENV_EEPROM_BUS)
 	i2c_set_bus_num(old_bus);
 #endif
@@ -95,12 +99,12 @@ uchar env_get_char_spec (int index)
 	uchar c;
 	unsigned int off;
 	off = CONFIG_ENV_OFFSET;
+
 #ifdef CONFIG_ENV_OFFSET_REDUND
 	if (gd->env_valid == 2)
 		off = CONFIG_ENV_OFFSET_REDUND;
 #endif
-
-	eeprom_bus_read (CONFIG_SYS_DEF_EEPROM_ADDR,
+	eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR,
 		     off + index + offsetof(env_t,data),
 		     &c, 1);
 
@@ -109,40 +113,60 @@ uchar env_get_char_spec (int index)
 
 void env_relocate_spec (void)
 {
+	char buf[CONFIG_ENV_SIZE];
 	unsigned int off = CONFIG_ENV_OFFSET;
+
 #ifdef CONFIG_ENV_OFFSET_REDUND
 	if (gd->env_valid == 2)
 		off = CONFIG_ENV_OFFSET_REDUND;
 #endif
-	eeprom_bus_read (CONFIG_SYS_DEF_EEPROM_ADDR,
+	eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR,
 		     off,
-		     (uchar*)env_ptr,
+		     (uchar *)buf,
 		     CONFIG_ENV_SIZE);
+
+	env_import(buf, 1);
 }
 
 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
 	unsigned int off_red = CONFIG_ENV_OFFSET_REDUND;
 	char flag_obsolete = OBSOLETE_FLAG;
+#endif
+
+	BUG_ON(env_ptr != NULL);
+
+	res = (char *)&env_new.data;
+	len = hexport('\0', &res, ENV_SIZE);
+	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_ENV_OFFSET_REDUND
 	if (gd->env_valid == 1) {
 		off = CONFIG_ENV_OFFSET_REDUND;
 		off_red = CONFIG_ENV_OFFSET;
 	}
 
-	env_ptr->flags = ACTIVE_FLAG;
+	env_new.flags = ACTIVE_FLAG;
 #endif
 
-	rc = eeprom_bus_write (CONFIG_SYS_DEF_EEPROM_ADDR,
+	rc = eeprom_bus_write(CONFIG_SYS_DEF_EEPROM_ADDR,
 			     off,
-			     (uchar *)env_ptr,
+			     (uchar *)&env_new,
 			     CONFIG_ENV_SIZE);
 
 #ifdef CONFIG_ENV_OFFSET_REDUND
 	if (rc == 0) {
-		eeprom_bus_write (CONFIG_SYS_DEF_EEPROM_ADDR,
+		eeprom_bus_write(CONFIG_SYS_DEF_EEPROM_ADDR,
 				  off_red + offsetof(env_t,flags),
 				  (uchar *)&flag_obsolete,
 				  1);
@@ -157,10 +181,10 @@ int saveenv(void)
 	return rc;
 }
 
-/************************************************************************
+/*
  * Initialize Environment use
  *
- * We are still running from ROM, so data use is limited
+ * We are still running from ROM, so data use is limited.
  * Use a (moderately small) buffer on the stack
  */
 
@@ -175,31 +199,31 @@ int env_init(void)
 	unsigned char flags[2];
 	int i;
 
-	eeprom_init ();	/* prepare for EEPROM read/write */
+	eeprom_init();	/* prepare for EEPROM read/write */
 
 	off_env[0] = CONFIG_ENV_OFFSET;
 	off_env[1] = CONFIG_ENV_OFFSET_REDUND;
 
 	for (i = 0; i < 2; i++) {
 		/* read CRC */
-		eeprom_bus_read (CONFIG_SYS_DEF_EEPROM_ADDR,
+		eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR,
 			off_env[i] + offsetof(env_t,crc),
 			(uchar *)&crc[i], sizeof(ulong));
 		/* read FLAGS */
-		eeprom_bus_read (CONFIG_SYS_DEF_EEPROM_ADDR,
+		eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR,
 			off_env[i] + offsetof(env_t,flags),
 			(uchar *)&flags[i], sizeof(uchar));
 
-		crc_tmp= 0;
+		crc_tmp = 0;
 		len = ENV_SIZE;
 		off = off_env[i] + offsetof(env_t,data);
 		while (len > 0) {
 			int n = (len > sizeof(buf)) ? sizeof(buf) : len;
 
-			eeprom_bus_read (CONFIG_SYS_DEF_EEPROM_ADDR, off,
+			eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR, off,
 				buf, n);
 
-			crc_tmp = crc32 (crc_tmp, buf, n);
+			crc_tmp = crc32(crc_tmp, buf, n);
 			len -= n;
 			off += n;
 		}
@@ -245,22 +269,23 @@ int env_init(void)
 	unsigned off;
 	uchar buf[64];
 
-	eeprom_init ();	/* prepare for EEPROM read/write */
+	eeprom_init();	/* prepare for EEPROM read/write */
 
 	/* read old CRC */
-	eeprom_bus_read (CONFIG_SYS_DEF_EEPROM_ADDR,
+	eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR,
 		     CONFIG_ENV_OFFSET+offsetof(env_t,crc),
 		     (uchar *)&crc, sizeof(ulong));
 
 	new = 0;
 	len = ENV_SIZE;
 	off = offsetof(env_t,data);
+
 	while (len > 0) {
 		int n = (len > sizeof(buf)) ? sizeof(buf) : len;
 
-		eeprom_bus_read (CONFIG_SYS_DEF_EEPROM_ADDR,
+		eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR,
 				CONFIG_ENV_OFFSET + off, buf, n);
-		new = crc32 (new, buf, n);
+		new = crc32(new, buf, n);
 		len -= n;
 		off += n;
 	}