Fix OneNAND erase command

index dcda099..aff11d1 100644
@@ -44,14 +44,28 @@ int do_onenand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	default:
 		/* At least 4 args */
 		if (strncmp(argv[1], "erase", 5) == 0) {
-			struct erase_info instr;
+			struct erase_info instr = {
+				.callback	= NULL,
+			};
 			ulong start, end;
 			ulong block;
-
-			start = simple_strtoul(argv[2], NULL, 10);
-			end = simple_strtoul(argv[3], NULL, 10);
-			start -= (unsigned long)onenand_chip.base;
-			end -= (unsigned long)onenand_chip.base;
+			char *endtail;
+
+			if (strncmp(argv[2], "block", 5) == 0) {
+				start = simple_strtoul(argv[3], NULL, 10);
+				endtail = strchr(argv[3], '-');
+				end = simple_strtoul(endtail + 1, NULL, 10);
+			} else {
+				start = simple_strtoul(argv[2], NULL, 10);
+				end = simple_strtoul(argv[3], NULL, 10);
+				start -= (unsigned long)onenand_chip.base;
+				end -= (unsigned long)onenand_chip.base;
+
+				start >>= onenand_chip.erase_shift;
+				end >>= onenand_chip.erase_shift;
+				/* Don't include the end block */
+				end--;
+			}
 
 			if (!end || end < 0)
 				end = start;

index 5888f75..ac8a8c1 100644
@@ -52,22 +52,21 @@ static unsigned char onenand_env[MAX_ONENAND_PAGESIZE];
 env_t *env_ptr = (env_t *) onenand_env;
 #endif /* ENV_IS_EMBEDDED */
 
+DECLARE_GLOBAL_DATA_PTR;
+
 uchar env_get_char_spec(int index)
 {
-	DECLARE_GLOBAL_DATA_PTR;
-
 	return (*((uchar *) (gd->env_addr + index)));
 }
 
 void env_relocate_spec(void)
 {
-	DECLARE_GLOBAL_DATA_PTR;
 	unsigned long env_addr;
 	int use_default = 0;
 	size_t retlen;
 
 	env_addr = CFG_ENV_ADDR;
-	env_addr -= (unsigned long)onenand_chip.base;
+	env_addr -= (unsigned long) onenand_chip.base;
 
 	/* Check OneNAND exist */
 	if (onenand_mtd.oobblock)

@@ -95,7 +94,9 @@ void env_relocate_spec(void)
 int saveenv(void)
 {
 	unsigned long env_addr = CFG_ENV_ADDR;
-	struct erase_info instr;
+	struct erase_info instr = {
+		.callback	= NULL,
+	};
 	size_t retlen;
 
 	instr.len = CFG_ENV_SIZE;

@@ -108,7 +109,7 @@ int saveenv(void)
 
 	/* update crc */
 	env_ptr->crc =
-	    crc32(0, env_ptr->data, onenand_mtd.oobblock - ENV_HEADER_SIZE);
+	    crc32(0, env_ptr->data, ONENAND_ENV_SIZE(onenand_mtd));
 
 	env_addr -= (unsigned long)onenand_chip.base;
 	if (onenand_write(&onenand_mtd, env_addr, onenand_mtd.oobblock, &retlen,

@@ -122,8 +123,6 @@ int saveenv(void)
 
 int env_init(void)
 {
-	DECLARE_GLOBAL_DATA_PTR;
-
 	/* use default */
 	gd->env_addr = (ulong) & default_environment[0];
 	gd->env_valid = 1;