env: Drop the env_name_spec global

Add a name to the driver and use that instead of the global variable
declared by each driver.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>

cmd/nvedit.c

@@ -706,7 +706,9 @@ ulong getenv_ulong(const char *name, int base, ulong default_val)
 static int do_env_save(cmd_tbl_t *cmdtp, int flag, int argc,
 		       char * const argv[])
 {
-	printf("Saving Environment to %s...\n", env_name_spec);
+	struct env_driver *env = env_driver_lookup_default();
+
+	printf("Saving Environment to %s...\n", env->name);
 
 	return saveenv() ? 1 : 0;
 }

env/dataflash.c

@@ -16,8 +16,6 @@ DECLARE_GLOBAL_DATA_PTR;
 
 env_t *env_ptr;
 
-char *env_name_spec = "dataflash";
-
 static unsigned char env_dataflash_get_char(int index)
 {
 	uchar c;
@@ -70,6 +68,7 @@ static int env_dataflash_save(void)
 
 U_BOOT_ENV_LOCATION(dataflash) = {
 	.location	= ENVL_DATAFLASH,
+	ENV_NAME("dataflash")
 	.get_char	= env_dataflash_get_char,
 	.load		= env_dataflash_load,
 	.save		= env_save_ptr(env_dataflash_save),

env/eeprom.c

@@ -23,8 +23,6 @@ DECLARE_GLOBAL_DATA_PTR;
 
 env_t *env_ptr;
 
-char *env_name_spec = "EEPROM";
-
 static int eeprom_bus_read(unsigned dev_addr, unsigned offset,
 			   uchar *buffer, unsigned cnt)
 {
@@ -233,6 +231,7 @@ static int env_eeprom_save(void)
 
 U_BOOT_ENV_LOCATION(eeprom) = {
 	.location	= ENVL_EEPROM,
+	ENV_NAME("EEPROM")
 	.get_char	= env_eeprom_get_char,
 	.load		= env_eeprom_load,
 	.save		= env_save_ptr(env_eeprom_save),

env/env.c

@@ -54,7 +54,7 @@ static enum env_location env_get_default_location(void)
 		return ENVL_UNKNOWN;
 }
 
-static struct env_driver *env_driver_lookup_default(void)
+struct env_driver *env_driver_lookup_default(void)
 {
 	enum env_location loc = env_get_default_location();
 	struct env_driver *drv;

env/ext4.c

@@ -31,8 +31,6 @@
 #include <ext4fs.h>
 #include <mmc.h>
 
-char *env_name_spec = "EXT4";
-
 env_t *env_ptr;
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -121,6 +119,7 @@ err_env_relocate:
 
 U_BOOT_ENV_LOCATION(ext4) = {
 	.location	= ENVL_EXT4,
+	ENV_NAME("EXT4")
 	.load		= env_ext4_load,
 	.save		= env_save_ptr(env_ext4_save),
 };

env/fat.c

@@ -31,8 +31,6 @@
 # endif
 #endif
 
-char *env_name_spec = "FAT";
-
 env_t *env_ptr;
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -116,6 +114,7 @@ err_env_relocate:
 
 U_BOOT_ENV_LOCATION(fat) = {
 	.location	= ENVL_FAT,
+	ENV_NAME("FAT")
 #ifdef LOADENV
 	.load		= env_fat_load,
 #endif

env/flash.c

@@ -45,8 +45,6 @@ DECLARE_GLOBAL_DATA_PTR;
 #define INITENV
 #endif
 
-char *env_name_spec = "Flash";
-
 #ifdef ENV_IS_EMBEDDED
 env_t *env_ptr = &environment;
 
@@ -359,6 +357,7 @@ static void env_flash_load(void)
 
 U_BOOT_ENV_LOCATION(flash) = {
 	.location	= ENVL_FLASH,
+	ENV_NAME("Flash")
 #ifdef LOADENV
 	.load		= env_flash_load,
 #endif

env/mmc.c

@@ -23,8 +23,6 @@
 #error CONFIG_ENV_SIZE_REDUND should be the same as CONFIG_ENV_SIZE
 #endif
 
-char *env_name_spec = "MMC";
-
 #ifdef ENV_IS_EMBEDDED
 env_t *env_ptr = &environment;
 #else /* ! ENV_IS_EMBEDDED */
@@ -318,6 +316,7 @@ err:
 
 U_BOOT_ENV_LOCATION(mmc) = {
 	.location	= ENVL_MMC,
+	ENV_NAME("MMC")
 	.load		= env_mmc_load,
 #ifndef CONFIG_SPL_BUILD
 	.save		= env_save_ptr(env_mmc_save),

env/nand.c

@@ -40,8 +40,6 @@
 #define CONFIG_ENV_RANGE	CONFIG_ENV_SIZE
 #endif
 
-char *env_name_spec = "NAND";
-
 #if defined(ENV_IS_EMBEDDED)
 env_t *env_ptr = &environment;
 #elif defined(CONFIG_NAND_ENV_DST)
@@ -398,6 +396,7 @@ static void env_nand_load(void)
 
 U_BOOT_ENV_LOCATION(nand) = {
 	.location	= ENVL_NAND,
+	ENV_NAME("NAND")
 	.load		= env_nand_load,
 #if defined(CMD_SAVEENV)
 	.save		= env_save_ptr(env_nand_save),

env/nowhere.c

@@ -19,4 +19,5 @@ env_t *env_ptr;
 
 U_BOOT_ENV_LOCATION(nowhere) = {
 	.location	= ENVL_NOWHERE,
+	ENV_NAME("nowhere")
 };

env/nvram.c

@@ -41,8 +41,6 @@ env_t *env_ptr;
 env_t *env_ptr = (env_t *)CONFIG_ENV_ADDR;
 #endif
 
-char *env_name_spec = "NVRAM";
-
 #ifdef CONFIG_SYS_NVRAM_ACCESS_ROUTINE
 static uchar env_nvram_get_char(int index)
 {
@@ -115,6 +113,7 @@ static int env_nvram_init(void)
 
 U_BOOT_ENV_LOCATION(nvram) = {
 	.location	= ENVL_NVRAM,
+	ENV_NAME("NVRAM")
 #ifdef CONFIG_SYS_NVRAM_ACCESS_ROUTINE
 	.get_char	= env_nvram_get_char,
 #endif

env/onenand.c

@@ -21,8 +21,6 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/onenand.h>
 
-char *env_name_spec = "OneNAND";
-
 #define ONENAND_MAX_ENV_SIZE	CONFIG_ENV_SIZE
 #define ONENAND_ENV_SIZE(mtd)	(ONENAND_MAX_ENV_SIZE - ENV_HEADER_SIZE)
 
@@ -108,6 +106,7 @@ static int env_onenand_save(void)
 
 U_BOOT_ENV_LOCATION(onenand) = {
 	.location	= ENVL_ONENAND,
+	ENV_NAME("OneNAND")
 	.load		= env_onenand_load,
 	.save		= env_save_ptr(env_onenand_save),
 };

env/remote.c

@@ -11,8 +11,6 @@
 #include <environment.h>
 #include <linux/stddef.h>
 
-char *env_name_spec = "Remote";
-
 #ifdef ENV_IS_EMBEDDED
 env_t *env_ptr = &environment;
 #else /* ! ENV_IS_EMBEDDED */
@@ -57,6 +55,7 @@ static void env_remote_load(void)
 
 U_BOOT_ENV_LOCATION(remote) = {
 	.location	= ENVL_REMOTE,
+	ENV_NAME("Remote")
 	.load		= env_remote_load,
 	.save		= env_save_ptr(env_remote_save),
 	.init		= env_remote_init,

env/sata.c

@@ -24,8 +24,6 @@
 #error CONFIG_ENV_OFFSET or CONFIG_ENV_SIZE not defined
 #endif
 
-char *env_name_spec = "SATA";
-
 DECLARE_GLOBAL_DATA_PTR;
 
 __weak int sata_get_env_dev(void)
@@ -119,6 +117,7 @@ static void env_sata_load(void)
 
 U_BOOT_ENV_LOCATION(sata) = {
 	.location	= ENVL_ESATA,
+	ENV_NAME("SATA")
 	.load		= env_sata_load,
 	.save		= env_save_ptr(env_sata_save),
 };

env/sf.c

@@ -48,8 +48,6 @@ static ulong env_new_offset	= CONFIG_ENV_OFFSET_REDUND;
 
 DECLARE_GLOBAL_DATA_PTR;
 
-char *env_name_spec = "SPI Flash";
-
 static struct spi_flash *env_flash;
 
 static int setup_flash_device(void)
@@ -346,6 +344,7 @@ out:
 
 U_BOOT_ENV_LOCATION(sf) = {
 	.location	= ENVL_SPI_FLASH,
+	ENV_NAME("SPI Flash")
 	.load		= env_sf_load,
 #ifdef CMD_SAVEENV
 	.save		= env_save_ptr(env_sf_save),

env/ubi.c

@@ -16,8 +16,6 @@
 #include <ubi_uboot.h>
 #undef crc32
 
-char *env_name_spec = "UBI";
-
 env_t *env_ptr;
 
 DECLARE_GLOBAL_DATA_PTR;

include/environment.h

@@ -143,10 +143,6 @@ extern unsigned long nand_env_oob_offset;
 # define ENV_HEADER_SIZE	(sizeof(uint32_t))
 #endif
 
-#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
-extern char *env_name_spec;
-#endif
-
 #ifdef CONFIG_ENV_AES
 /* Make sure the payload is multiple of AES block size */
 #define ENV_SIZE ((CONFIG_ENV_SIZE - ENV_HEADER_SIZE) & ~(16 - 1))
@@ -224,6 +220,7 @@ enum env_location {
 };
 
 struct env_driver {
+	const char *name;
 	enum env_location location;
 
 	/**
@@ -269,6 +266,13 @@ struct env_driver {
 #define U_BOOT_ENV_LOCATION(__name)					\
 	ll_entry_declare(struct env_driver, __name, env_driver)
 
+/* Declare the name of a location */
+#ifdef CONFIG_CMD_SAVEENV
+#define ENV_NAME(_name) .name = _name,
+#else
+#define ENV_NAME(_name)
+#endif
+
 #ifdef CONFIG_CMD_SAVEENV
 #define env_save_ptr(x) x
 #else
@@ -303,6 +307,13 @@ int env_export(env_t *env_out);
 int env_import_redund(const char *buf1, const char *buf2);
 #endif
 
+/**
+ * env_driver_lookup_default() - Look up the default environment driver
+ *
+ * @return pointer to driver, or NULL if none (which should not happen)
+ */
+struct env_driver *env_driver_lookup_default(void);
+
 #endif /* DO_DEPS_ONLY */
 
 #endif /* _ENVIRONMENT_H_ */