env: Drop CONFIG_ENV_IS_IN_DATAFLASH

Last user of this option went away in commit:

fdc7718999 ("board: usb_a9263: Update to support DT and DM")

Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>

cmd/nvedit.c

@@ -42,7 +42,6 @@ DECLARE_GLOBAL_DATA_PTR;
 
 #if	!defined(CONFIG_ENV_IS_IN_EEPROM)	&& \
 	!defined(CONFIG_ENV_IS_IN_FLASH)	&& \
-	!defined(CONFIG_ENV_IS_IN_DATAFLASH)	&& \
 	!defined(CONFIG_ENV_IS_IN_MMC)		&& \
 	!defined(CONFIG_ENV_IS_IN_FAT)		&& \
 	!defined(CONFIG_ENV_IS_IN_EXT4)		&& \
@@ -54,7 +53,7 @@ DECLARE_GLOBAL_DATA_PTR;
 	!defined(CONFIG_ENV_IS_IN_REMOTE)	&& \
 	!defined(CONFIG_ENV_IS_IN_UBI)		&& \
 	!defined(CONFIG_ENV_IS_NOWHERE)
-# error Define one of CONFIG_ENV_IS_IN_{EEPROM|FLASH|DATAFLASH|MMC|FAT|EXT4|\
+# error Define one of CONFIG_ENV_IS_IN_{EEPROM|FLASH|MMC|FAT|EXT4|\
 NAND|NVRAM|ONENAND|SATA|SPI_FLASH|REMOTE|UBI} or CONFIG_ENV_IS_NOWHERE
 #endif
 

env/Kconfig

@@ -39,21 +39,6 @@ config ENV_IS_NOWHERE
 	  stored. U-Boot will therefore always start up with a default
 	  environment.
 
-config ENV_IS_IN_DATAFLASH
-	bool "Environment in dataflash"
-	depends on !CHAIN_OF_TRUST
-	help
-	  Define this if you have a DataFlash memory device which you
-	  want to use for the environment.
-
-	  - CONFIG_ENV_OFFSET:
-	  - CONFIG_ENV_ADDR:
-	  - CONFIG_ENV_SIZE:
-
-	  These three #defines specify the offset and size of the
-	  environment area within the total memory of your DataFlash placed
-	  at the specified address.
-
 config ENV_IS_IN_EEPROM
 	bool "Environment in EEPROM"
 	depends on !CHAIN_OF_TRUST

env/Makefile

@@ -11,7 +11,6 @@ ifndef CONFIG_SPL_BUILD
 obj-y += attr.o
 obj-y += callback.o
 obj-y += flags.o
-obj-$(CONFIG_ENV_IS_IN_DATAFLASH) += dataflash.o
 obj-$(CONFIG_ENV_IS_IN_EEPROM) += eeprom.o
 extra-$(CONFIG_ENV_IS_EMBEDDED) += embedded.o
 obj-$(CONFIG_ENV_IS_IN_EEPROM) += embedded.o

env/dataflash.c

@@ -1,75 +0,0 @@
-/*
- * LowLevel function for DataFlash environment support
- * Author : Gilles Gastaldi (Atmel)
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-#include <common.h>
-#include <command.h>
-#include <environment.h>
-#include <linux/stddef.h>
-#include <dataflash.h>
-#include <search.h>
-#include <errno.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-static int env_dataflash_get_char(int index)
-{
-	uchar c;
-
-	read_dataflash(CONFIG_ENV_ADDR + index + offsetof(env_t, data),
-			1, (char *)&c);
-	return c;
-}
-
-static int env_dataflash_load(void)
-{
-	ulong crc, new = 0;
-	unsigned off;
-	char buf[CONFIG_ENV_SIZE];
-
-	/* Read old CRC */
-	read_dataflash(CONFIG_ENV_ADDR + offsetof(env_t, crc),
-		       sizeof(ulong), (char *)&crc);
-
-	/* Read whole environment */
-	read_dataflash(CONFIG_ENV_ADDR, CONFIG_ENV_SIZE, buf);
-
-	/* Calculate the CRC */
-	off = offsetof(env_t, data);
-	new = crc32(new, (unsigned char *)(buf + off), ENV_SIZE);
-
-	if (crc == new)
-		env_import(buf, 1);
-	else
-		set_default_env("!bad CRC");
-
-	return 0;
-}
-
-#ifdef CONFIG_ENV_OFFSET_REDUND
-#error No support for redundant environment on dataflash yet!
-#endif
-
-static int env_dataflash_save(void)
-{
-	env_t env_new;
-	int ret;
-
-	ret = env_export(&env_new);
-	if (ret)
-		return ret;
-
-	return write_dataflash(CONFIG_ENV_ADDR,
-				(unsigned long)&env_new,
-				CONFIG_ENV_SIZE);
-}
-
-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/env.c

@@ -28,9 +28,7 @@ static struct env_driver *env_driver_lookup(enum env_location loc)
 
 static enum env_location env_get_default_location(void)
 {
-	if IS_ENABLED(CONFIG_ENV_IS_IN_DATAFLASH)
-		return ENVL_DATAFLASH;
-	else if IS_ENABLED(CONFIG_ENV_IS_IN_EEPROM)
+	if IS_ENABLED(CONFIG_ENV_IS_IN_EEPROM)
 		return ENVL_EEPROM;
 	else if IS_ENABLED(CONFIG_ENV_IS_IN_FAT)
 		return ENVL_FAT;

include/environment.h

@@ -198,7 +198,6 @@ enum env_valid {
 };
 
 enum env_location {
-	ENVL_DATAFLASH,
 	ENVL_EEPROM,
 	ENVL_EXT4,
 	ENVL_FAT,

tools/Makefile

@@ -21,7 +21,6 @@ subdir-$(HOST_TOOLS_ALL) += gdb
 
 # Merge all the different vars for envcrc into one
 ENVCRC-$(CONFIG_ENV_IS_EMBEDDED) = y
-ENVCRC-$(CONFIG_ENV_IS_IN_DATAFLASH) = y
 ENVCRC-$(CONFIG_ENV_IS_IN_EEPROM) = y
 ENVCRC-$(CONFIG_ENV_IS_IN_FLASH) = y
 ENVCRC-$(CONFIG_ENV_IS_IN_ONENAND) = y