**************************************************************************
*/
-#if defined(CFG_ENV_IS_IN_FLASH)
-# ifndef CFG_ENV_ADDR
-# define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_ENV_OFFSET)
+#if defined(CONFIG_ENV_IS_IN_FLASH)
+# ifndef CONFIG_ENV_ADDR
+# define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET)
# endif
-# ifndef CFG_ENV_OFFSET
-# define CFG_ENV_OFFSET (CFG_ENV_ADDR - CFG_FLASH_BASE)
+# ifndef CONFIG_ENV_OFFSET
+# define CONFIG_ENV_OFFSET (CONFIG_ENV_ADDR - CONFIG_SYS_FLASH_BASE)
# endif
-# if !defined(CFG_ENV_ADDR_REDUND) && defined(CFG_ENV_OFFSET_REDUND)
-# define CFG_ENV_ADDR_REDUND (CFG_FLASH_BASE + CFG_ENV_OFFSET_REDUND)
+# if !defined(CONFIG_ENV_ADDR_REDUND) && defined(CONFIG_ENV_OFFSET_REDUND)
+# define CONFIG_ENV_ADDR_REDUND (CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET_REDUND)
# endif
-# ifndef CFG_ENV_SIZE
-# define CFG_ENV_SIZE CFG_ENV_SECT_SIZE
+# if defined(CONFIG_ENV_SECT_SIZE) || defined(CONFIG_ENV_SIZE)
+# ifndef CONFIG_ENV_SECT_SIZE
+# define CONFIG_ENV_SECT_SIZE CONFIG_ENV_SIZE
+# endif
+# ifndef CONFIG_ENV_SIZE
+# define CONFIG_ENV_SIZE CONFIG_ENV_SECT_SIZE
+# endif
+# else
+# error "Both CONFIG_ENV_SECT_SIZE and CONFIG_ENV_SIZE undefined"
# endif
-# if defined(CFG_ENV_ADDR_REDUND) && !defined(CFG_ENV_SIZE_REDUND)
-# define CFG_ENV_SIZE_REDUND CFG_ENV_SIZE
+# if defined(CONFIG_ENV_ADDR_REDUND) && !defined(CONFIG_ENV_SIZE_REDUND)
+# define CONFIG_ENV_SIZE_REDUND CONFIG_ENV_SIZE
# endif
-# if (CFG_ENV_ADDR >= CFG_MONITOR_BASE) && \
- (CFG_ENV_ADDR+CFG_ENV_SIZE) <= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)
+# if (CONFIG_ENV_ADDR >= CONFIG_SYS_MONITOR_BASE) && \
+ (CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) <= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)
# define ENV_IS_EMBEDDED 1
# endif
-# if defined(CFG_ENV_ADDR_REDUND) || defined(CFG_ENV_OFFSET_REDUND)
-# define CFG_REDUNDAND_ENVIRONMENT 1
+# if defined(CONFIG_ENV_ADDR_REDUND) || defined(CONFIG_ENV_OFFSET_REDUND)
+# define CONFIG_SYS_REDUNDAND_ENVIRONMENT 1
# endif
-#endif /* CFG_ENV_IS_IN_FLASH */
+# ifdef CONFIG_ENV_IS_EMBEDDED
+# error "do not define CONFIG_ENV_IS_EMBEDDED in your board config"
+# error "it is calculated automatically for you"
+# endif
+#endif /* CONFIG_ENV_IS_IN_FLASH */
+
+#if defined(CONFIG_ENV_IS_IN_NAND)
+# if defined(CONFIG_ENV_OFFSET_OOB)
+# ifdef CONFIG_ENV_OFFSET_REDUND
+# error "CONFIG_ENV_OFFSET_REDUND is not supported when CONFIG_ENV_OFFSET_OOB"
+# error "is set"
+# endif
+extern unsigned long nand_env_oob_offset;
+# define CONFIG_ENV_OFFSET nand_env_oob_offset
+# else
+# ifndef CONFIG_ENV_OFFSET
+# error "Need to define CONFIG_ENV_OFFSET when using CONFIG_ENV_IS_IN_NAND"
+# endif
+# ifdef CONFIG_ENV_OFFSET_REDUND
+# define CONFIG_SYS_REDUNDAND_ENVIRONMENT
+# endif
+# endif /* CONFIG_ENV_OFFSET_OOB */
+# ifndef CONFIG_ENV_SIZE
+# error "Need to define CONFIG_ENV_SIZE when using CONFIG_ENV_IS_IN_NAND"
+# endif
+#endif /* CONFIG_ENV_IS_IN_NAND */
+
+#if defined(CONFIG_ENV_IS_IN_MG_DISK)
+# ifndef CONFIG_ENV_ADDR
+# error "Need to define CONFIG_ENV_ADDR when using CONFIG_ENV_IS_IN_MG_DISK"
+# endif
+# ifndef CONFIG_ENV_SIZE
+# error "Need to define CONFIG_ENV_SIZE when using CONFIG_ENV_IS_IN_MG_DISK"
+# endif
+#endif /* CONFIG_ENV_IS_IN_MG_DISK */
+
+/* Embedded env is only supported for some flash types */
+#ifdef CONFIG_ENV_IS_EMBEDDED
+# if !defined(CONFIG_ENV_IS_IN_FLASH) && \
+ !defined(CONFIG_ENV_IS_IN_NAND) && \
+ !defined(CONFIG_ENV_IS_IN_ONENAND)
+# error "CONFIG_ENV_IS_EMBEDDED not supported for your flash type"
+# endif
+#endif
+/*
+ * For the flash types where embedded env is supported, but it cannot be
+ * calculated automatically (i.e. NAND), take the board opt-in.
+ */
+#if defined(CONFIG_ENV_IS_EMBEDDED) && !defined(ENV_IS_EMBEDDED)
+# define ENV_IS_EMBEDDED 1
+#endif
-#ifdef CFG_REDUNDAND_ENVIRONMENT
-# define ENV_HEADER_SIZE (sizeof(unsigned long) + 1)
+/* The build system likes to know if the env is embedded */
+#ifdef DO_DEPS_ONLY
+# ifdef ENV_IS_EMBEDDED
+# define CONFIG_ENV_IS_EMBEDDED
+# endif
+#endif
+
+#include "compiler.h"
+
+#ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
+# define ENV_HEADER_SIZE (sizeof(uint32_t) + 1)
+
+# define ACTIVE_FLAG 1
+# define OBSOLETE_FLAG 0
#else
-# define ENV_HEADER_SIZE (sizeof(unsigned long))
+# define ENV_HEADER_SIZE (sizeof(uint32_t))
#endif
-#define ENV_SIZE (CFG_ENV_SIZE - ENV_HEADER_SIZE)
+#define ENV_SIZE (CONFIG_ENV_SIZE - ENV_HEADER_SIZE)
typedef struct environment_s {
- unsigned long crc; /* CRC32 over data bytes */
-#ifdef CFG_REDUNDAND_ENVIRONMENT
+ uint32_t crc; /* CRC32 over data bytes */
+#ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
unsigned char flags; /* active/obsolete flags */
#endif
unsigned char data[ENV_SIZE]; /* Environment data */
} env_t;
+#ifndef DO_DEPS_ONLY
+
+#include <search.h>
+
+extern struct hsearch_data env_htab;
+
+/* Function that returns a character from the environment */
+unsigned char env_get_char (int);
+
+/* Function that returns a pointer to a value from the environment */
+unsigned char *env_get_addr(int);
+unsigned char env_get_char_memory (int index);
+
+/* Function that updates CRC of the enironment */
+void env_crc_update (void);
+
+/* [re]set to the default environment */
+void set_default_env(const char *s);
+
+/* Import from binary representation into hash table */
+int env_import(const char *buf, int check);
+
+#endif
+
#endif /* _ENVIRONMENT_H_ */
projects / J-u-boot.git / blobdiff