From: Markus Klotzbuecher <mk@denx.de>
Date: Fri, 24 Mar 2006 14:43:16 +0000 (+0100)
Subject: Merge with http://www.denx.de/git/u-boot.git
X-Git-Tag: v2008.10-rc1~1256
X-Git-Url: http://review.tizen.org/git/?p=platform%2Fkernel%2Fu-boot.git;a=commitdiff_plain;h=2770bcb21c82835a5351176e5b2a9221d7fc8ef9

Merge with http://www.denx.de/git/u-boot.git
---

2770bcb21c82835a5351176e5b2a9221d7fc8ef9
diff --cc common/env_nand.c
index 2e1bfa6,dd27f7b..a6af74a
--- a/common/env_nand.c
+++ b/common/env_nand.c
@@@ -108,45 -110,10 +108,47 @@@ int env_init(void
   * The legacy NAND code saved the environment in the first NAND device i.e.,
   * nand_dev_desc + 0. This is also the behaviour using the new NAND code.
   */
 +#ifdef CFG_ENV_OFFSET_REDUND
 +int saveenv(void)
 +{
- 	int total, ret = 0;
++	ulong total;
++	int ret = 0;
 +
 +	DECLARE_GLOBAL_DATA_PTR;
 +
 +	env_ptr->flags++;
 +	total = CFG_ENV_SIZE;
 +
 +	if(gd->env_valid == 1) {
 +		puts ("Erasing redundant Nand...");
 +		if (nand_erase(&nand_info[0],
 +			       CFG_ENV_OFFSET_REDUND, CFG_ENV_SIZE))
 +			return 1;
 +		puts ("Writing to redundant Nand... ");
 +		ret = nand_write(&nand_info[0], CFG_ENV_OFFSET_REDUND, &total,
 +				 (u_char*) env_ptr);
 +	} else {
 +		puts ("Erasing Nand...");
 +		if (nand_erase(&nand_info[0],
 +			       CFG_ENV_OFFSET, CFG_ENV_SIZE))
 +			return 1;
 +
 +		puts ("Writing to Nand... ");
 +		ret = nand_write(&nand_info[0], CFG_ENV_OFFSET, &total,
 +				 (u_char*) env_ptr);
 +	}
 +	if (ret || total != CFG_ENV_SIZE)
 +		return 1;
 +
 +	puts ("done\n");
 +	gd->env_valid = (gd->env_valid == 2 ? 1 : 2);
 +	return ret;
 +}
 +#else /* ! CFG_ENV_OFFSET_REDUND */
  int saveenv(void)
  {
- 	int total, ret = 0;
+ 	ulong total;
+ 	int ret = 0;
  
  	puts ("Erasing Nand...");
  	if (nand_erase(&nand_info[0], CFG_ENV_OFFSET, CFG_ENV_SIZE))
@@@ -162,64 -128,9 +163,65 @@@
  	puts ("done\n");
  	return ret;
  }
 +#endif /* CFG_ENV_OFFSET_REDUND */
  #endif /* CMD_SAVEENV */
  
 +#ifdef CFG_ENV_OFFSET_REDUND
 +void env_relocate_spec (void)
 +{
 +#if !defined(ENV_IS_EMBEDDED)
- 	int crc1_ok = 0, crc2_ok = 0, total;
++	ulong total;
++	int crc1_ok = 0, crc2_ok = 0;
 +	env_t *tmp_env1, *tmp_env2;
 +
 +	DECLARE_GLOBAL_DATA_PTR;
 +
 +	total = CFG_ENV_SIZE;
 +
 +	tmp_env1 = (env_t *) malloc(CFG_ENV_SIZE);
 +	tmp_env2 = (env_t *) malloc(CFG_ENV_SIZE);
 +
 +	nand_read(&nand_info[0], CFG_ENV_OFFSET, &total,
 +		  (u_char*) tmp_env1);
 +	nand_read(&nand_info[0], CFG_ENV_OFFSET_REDUND, &total,
 +		  (u_char*) tmp_env2);
 +
 +	crc1_ok = (crc32(0, tmp_env1->data, ENV_SIZE) == tmp_env1->crc);
 +	crc2_ok = (crc32(0, tmp_env2->data, ENV_SIZE) == tmp_env2->crc);
  
 +	if(!crc1_ok && !crc2_ok)
 +		return use_default();
 +	else if(crc1_ok && !crc2_ok)
 +		gd->env_valid = 1;
 +	else if(!crc1_ok && crc2_ok)
 +		gd->env_valid = 2;
 +	else {
 +		/* both ok - check serial */
 +		if(tmp_env1->flags == 255 && tmp_env2->flags == 0)
 +			gd->env_valid = 2;
 +		else if(tmp_env2->flags == 255 && tmp_env1->flags == 0)
 +			gd->env_valid = 1;
 +		else if(tmp_env1->flags > tmp_env2->flags)
 +			gd->env_valid = 1;
 +		else if(tmp_env2->flags > tmp_env1->flags)
 +			gd->env_valid = 2;
 +		else /* flags are equal - almost impossible */
 +			gd->env_valid = 1;
 +
 +	}
 +
 +	free(env_ptr);
 +	if(gd->env_valid == 1) {
 +		env_ptr = tmp_env1;
 +		free(tmp_env2);
 +	} else {
 +		env_ptr = tmp_env2;
 +		free(tmp_env1);
 +	}
 +
 +#endif /* ! ENV_IS_EMBEDDED */
 +}
 +#else /* ! CFG_ENV_OFFSET_REDUND */
  /*
   * The legacy NAND code saved the environment in the first NAND device i.e.,
   * nand_dev_desc + 0. This is also the behaviour using the new NAND code.