Refine EEPROM types / flags (#17772)

Marlin/src/HAL/SAMD51/HAL.h

@@ -113,12 +113,6 @@ typedef int8_t pin_t;
 void HAL_clear_reset_source();  // clear reset reason
 uint8_t HAL_get_reset_source(); // get reset reason
 
-//
-// EEPROM
-//
-void eeprom_write_byte(uint8_t *pos, unsigned char value);
-uint8_t eeprom_read_byte(uint8_t *pos);
-
 //
 // ADC
 //

Marlin/src/HAL/SAMD51/eeprom_wired.cpp

@@ -18,18 +18,17 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
-
 #ifdef __SAMD51__
 
 #include "../../inc/MarlinConfig.h"
 
-#if ENABLED(EEPROM_SETTINGS) && NONE(QSPI_EEPROM, FLASH_EEPROM_EMULATION)
+#if USE_WIRED_EEPROM
 
+#include "../shared/eeprom_if.h"
 #include "../shared/eeprom_api.h"
 
-size_t PersistentStore::capacity() { return E2END + 1; }
-
-bool PersistentStore::access_start() { return true; }
+size_t PersistentStore::capacity()    { return E2END + 1; }
+bool PersistentStore::access_start()  { return true; }
 bool PersistentStore::access_finish() { return true; }
 
 bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) {
@@ -62,5 +61,5 @@ bool PersistentStore::read_data(int &pos, uint8_t* value, size_t size, uint16_t
   return false;
 }
 
-#endif // EEPROM_SETTINGS && !(QSPI_EEPROM || FLASH_EEPROM_EMULATION)
+#endif // USE_WIRED_EEPROM
 #endif // __SAMD51__

Marlin/src/HAL/SAMD51/inc/Conditionals_post.h

@@ -23,4 +23,6 @@
 
 #if USE_FALLBACK_EEPROM
   #define FLASH_EEPROM_EMULATION
+#elif EITHER(I2C_EEPROM, SPI_EEPROM)
+  #define USE_SHARED_EEPROM 1
 #endif