X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=common%2Fenv_onenand.c;h=652665a189094bafe5eced6aaeb137da2c3c920d;hb=573f14fe4ed5b803207824be9e3147e894b68f8b;hp=cf997bf7e507bbda71d3f839fcfcbf3cd004fcc7;hpb=2ff6922280025c1315c53fa2eb4ab33f0c9591de;p=u-boot

diff --git a/common/env_onenand.c b/common/env_onenand.c
index cf997bf7e5..652665a189 100644
--- a/common/env_onenand.c
+++ b/common/env_onenand.c
@@ -1,4 +1,7 @@
 /*
+ * (C) Copyright 2010 DENX Software Engineering
+ * Wolfgang Denk <wd@denx.de>
+ *
  * (C) Copyright 2005-2009 Samsung Electronics
  * Kyungmin Park <kyungmin.park@samsung.com>
  *
@@ -26,85 +29,78 @@
 #include <environment.h>
 #include <linux/stddef.h>
 #include <malloc.h>
+#include <search.h>
+#include <errno.h>
+#include <onenand_uboot.h>
 
 #include <linux/mtd/compat.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/onenand.h>
 
-extern struct mtd_info onenand_mtd;
-extern struct onenand_chip onenand_chip;
-
-/* References to names in env_common.c */
-extern uchar default_environment[];
-
 char *env_name_spec = "OneNAND";
 
 #define ONENAND_MAX_ENV_SIZE	4096
 #define ONENAND_ENV_SIZE(mtd)	(ONENAND_MAX_ENV_SIZE - ENV_HEADER_SIZE)
 
-#ifdef ENV_IS_EMBEDDED
-extern uchar environment[];
-env_t *env_ptr = (env_t *) (&environment[0]);
-#else /* ! ENV_IS_EMBEDDED */
-static unsigned char onenand_env[ONENAND_MAX_ENV_SIZE];
-env_t *env_ptr = (env_t *) onenand_env;
-#endif /* ENV_IS_EMBEDDED */
-
 DECLARE_GLOBAL_DATA_PTR;
 
-uchar env_get_char_spec(int index)
-{
-	return (*((uchar *) (gd->env_addr + index)));
-}
-
 void env_relocate_spec(void)
 {
 	struct mtd_info *mtd = &onenand_mtd;
 #ifdef CONFIG_ENV_ADDR_FLEX
 	struct onenand_chip *this = &onenand_chip;
 #endif
-	loff_t env_addr;
-	int use_default = 0;
+	int rc;
 	size_t retlen;
+#ifdef ENV_IS_EMBEDDED
+	char *buf = (char *)&environment;
+#else
+	loff_t env_addr = CONFIG_ENV_ADDR;
+	char onenand_env[ONENAND_MAX_ENV_SIZE];
+	char *buf = (char *)&onenand_env[0];
+#endif /* ENV_IS_EMBEDDED */
 
-	env_addr = CONFIG_ENV_ADDR;
-#ifdef CONFIG_ENV_ADDR_FLEX
+#ifndef ENV_IS_EMBEDDED
+# ifdef CONFIG_ENV_ADDR_FLEX
 	if (FLEXONENAND(this))
 		env_addr = CONFIG_ENV_ADDR_FLEX;
-#endif
+# endif
 	/* Check OneNAND exist */
 	if (mtd->writesize)
 		/* Ignore read fail */
 		mtd->read(mtd, env_addr, ONENAND_MAX_ENV_SIZE,
-			     &retlen, (u_char *) env_ptr);
+				&retlen, (u_char *)buf);
 	else
 		mtd->writesize = MAX_ONENAND_PAGESIZE;
+#endif /* !ENV_IS_EMBEDDED */
 
-	if (crc32(0, env_ptr->data, ONENAND_ENV_SIZE(mtd)) != env_ptr->crc)
-		use_default = 1;
-
-	if (use_default) {
-		memcpy(env_ptr->data, default_environment,
-		       ONENAND_ENV_SIZE(mtd));
-		env_ptr->crc =
-		    crc32(0, env_ptr->data, ONENAND_ENV_SIZE(mtd));
-	}
-
-	gd->env_addr = (ulong) & env_ptr->data;
-	gd->env_valid = 1;
+	rc = env_import(buf, 1);
+	if (rc)
+		gd->env_valid = 1;
 }
 
 int saveenv(void)
 {
+	env_t	env_new;
+	ssize_t	len;
+	char	*res;
 	struct mtd_info *mtd = &onenand_mtd;
 #ifdef CONFIG_ENV_ADDR_FLEX
 	struct onenand_chip *this = &onenand_chip;
 #endif
-	loff_t env_addr = CONFIG_ENV_ADDR;
+	loff_t	env_addr = CONFIG_ENV_ADDR;
+	size_t	retlen;
 	struct erase_info instr = {
 		.callback	= NULL,
 	};
-	size_t retlen;
+
+	res = (char *)&env_new.data;
+	len = hexport_r(&env_htab, '\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);
 
 	instr.len = CONFIG_ENV_SIZE;
 #ifdef CONFIG_ENV_ADDR_FLEX
@@ -122,11 +118,8 @@ int saveenv(void)
 		return 1;
 	}
 
-	/* update crc */
-	env_ptr->crc = crc32(0, env_ptr->data, ONENAND_ENV_SIZE(mtd));
-
 	if (mtd->write(mtd, env_addr, ONENAND_MAX_ENV_SIZE, &retlen,
-	     (u_char *) env_ptr)) {
+			(u_char *)&env_new)) {
 		printf("OneNAND: write failed at 0x%llx\n", instr.addr);
 		return 2;
 	}
@@ -137,7 +130,7 @@ int saveenv(void)
 int env_init(void)
 {
 	/* use default */
-	gd->env_addr = (ulong) & default_environment[0];
+	gd->env_addr = (ulong)&default_environment[0];
 	gd->env_valid = 1;
 
 	return 0;