Permit SD EEPROM emulation on E3V2 (#20353)

Marlin/src/lcd/dwin/e3v2/dwin.cpp

 }
 
 void HMI_SetLanguage() {
-  #if ENABLED(EEPROM_SETTINGS)
+  #if BOTH(EEPROM_SETTINGS, IIC_BL24CXX_EEPROM)
     BL24CXX::read(DWIN_LANGUAGE_EEPROM_ADDRESS, (uint8_t*)&HMI_flag.language, sizeof(HMI_flag.language));
   #endif
   HMI_SetLanguageCache();
 void HMI_ToggleLanguage() {
   HMI_flag.language = HMI_IsChinese() ? DWIN_ENGLISH : DWIN_CHINESE;
   HMI_SetLanguageCache();
-  #if ENABLED(EEPROM_SETTINGS)
+  #if BOTH(EEPROM_SETTINGS, IIC_BL24CXX_EEPROM)
     BL24CXX::write(DWIN_LANGUAGE_EEPROM_ADDRESS, (uint8_t*)&HMI_flag.language, sizeof(HMI_flag.language));
   #endif
 }

Marlin/src/pins/stm32f1/pins_CREALITY_V4.h

 // EEPROM
 //
 #if NO_EEPROM_SELECTED
-  // FLASH
-  //#define FLASH_EEPROM_EMULATION
-
-  // I2C
-  #define IIC_BL24CXX_EEPROM                      // EEPROM on I2C-0 used only for display settings
-  #if ENABLED(IIC_BL24CXX_EEPROM)
-    #define IIC_EEPROM_SDA                  PA11
-    #define IIC_EEPROM_SCL                  PA12
-    #define MARLIN_EEPROM_SIZE             0x800  // 2Kb (24C16)
-  #else
-    #define SDCARD_EEPROM_EMULATION               // SD EEPROM until all EEPROM is BL24CXX
-    #define MARLIN_EEPROM_SIZE             0x800  // 2Kb
-  #endif
-
-  // SPI
-  //#define SPI_EEPROM                            // EEPROM on SPI-0
-  //#define SPI_CHAN_EEPROM1  ?
-  //#define SPI_EEPROM1_CS    ?
-
-  // 2K EEPROM
-  //#define SPI_EEPROM2_CS    ?
+  #define IIC_BL24CXX_EEPROM                      // EEPROM on I2C-0
+  //#define SDCARD_EEPROM_EMULATION
+#endif
 
-  // 32Mb FLASH
-  //#define SPI_FLASH_CS      ?
+#if ENABLED(IIC_BL24CXX_EEPROM)
+  #define IIC_EEPROM_SDA                  PA11
+  #define IIC_EEPROM_SCL                  PA12
+  #define MARLIN_EEPROM_SIZE             0x800  // 2Kb (24C16)
+#elif ENABLED(SDCARD_EEPROM_EMULATION)
+  #define MARLIN_EEPROM_SIZE             0x800  // 2Kb
 #endif
 
 //

buildroot/tests/STM32F103RET6_creality-tests

 
 use_example_configs "Creality/Ender-3 V2"
 opt_disable CLASSIC_JERK
-exec_test $1 $2 "Ender 3 v2 w/o CLASSIC_JERK" "$3"
+opt_add SDCARD_EEPROM_EMULATION
+exec_test $1 $2 "Ender 3 v2, SD EEPROM, w/o CLASSIC_JERK" "$3"
 
 restore_configs