1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Copyright (C) 2024 PHYTEC Messtechnik GmbH 4 * Author: Daniel Schultz <d.schultz@phytec.de> 5 */ 6 7 #ifndef _PHYTEC_AM6_SOM_DETECTION_H 8 #define _PHYTEC_AM6_SOM_DETECTION_H 9 10 #include "phytec_som_detection.h" 11 12 #define EEPROM_ADDR 0x50 13 #define PHYTEC_AM62X_SOM 71 14 #define PHYTEC_AM62AX_SOM 75 15 #define PHYTEC_AM64X_SOM 72 16 #define PHYTEC_EEPROM_VALUE_X 0x21 17 #define PHYTEC_EEPROM_NOR_FLASH_64MB_QSPI 0xC 18 19 enum { 20 EEPROM_RAM_SIZE_512MB = 0, 21 EEPROM_RAM_SIZE_1GB = 1, 22 EEPROM_RAM_SIZE_2GB = 2, 23 EEPROM_RAM_SIZE_4GB = 4 24 }; 25 26 int __maybe_unused phytec_am6_detect(struct phytec_eeprom_data *data); 27 u8 __maybe_unused phytec_get_am6_ddr_size(struct phytec_eeprom_data *data); 28 u8 __maybe_unused phytec_get_am6_spi(struct phytec_eeprom_data *data); 29 u8 __maybe_unused phytec_get_am6_eth(struct phytec_eeprom_data *data); 30 u8 __maybe_unused phytec_get_am6_rtc(struct phytec_eeprom_data *data); 31 phytec_am6_is_qspi(struct phytec_eeprom_data * data)32static inline int phytec_am6_is_qspi(struct phytec_eeprom_data *data) 33 { 34 u8 spi = phytec_get_am6_spi(data); 35 36 if (spi == PHYTEC_EEPROM_VALUE_X) 37 return 0; 38 return spi <= PHYTEC_EEPROM_NOR_FLASH_64MB_QSPI; 39 } 40 phytec_am6_is_ospi(struct phytec_eeprom_data * data)41static inline int phytec_am6_is_ospi(struct phytec_eeprom_data *data) 42 { 43 return phytec_get_am6_spi(data) > PHYTEC_EEPROM_NOR_FLASH_64MB_QSPI; 44 } 45 #endif /* _PHYTEC_AM6_SOM_DETECTION_H */ 46