/* SPDX-License-Identifier: GPL-2.0-or-later */ #ifndef DEVICE_DRAM_COMMON_H #define DEVICE_DRAM_COMMON_H #include <console/console.h> #include <stdint.h> /** * \brief Convenience definitions for TCK values * * Different values for tCK, representing standard DDR3 frequencies. * These values are in 1/256 ns units. * @{ */ #define NS2MHZ_DIV256 (1000 << 8) #define TCK_1333MHZ 192 #define TCK_1200MHZ 212 #define TCK_1100MHZ 232 #define TCK_1066MHZ 240 #define TCK_1000MHZ 256 #define TCK_933MHZ 274 #define TCK_900MHZ 284 #define TCK_800MHZ 320 #define TCK_700MHZ 365 #define TCK_666MHZ 384 #define TCK_533MHZ 480 #define TCK_400MHZ 640 #define TCK_333MHZ 768 #define TCK_266MHZ 960 #define TCK_200MHZ 1280 /** @} */ /** * \brief Convenience macro for enabling printk with CONFIG(DEBUG_RAM_SETUP) * * Use this macro instead of printk(); for verbose RAM initialization messages. * When CONFIG(DEBUG_RAM_SETUP) is not selected, these messages are automatically * disabled. * @{ */ #if CONFIG(DEBUG_RAM_SETUP) #define printram(x, ...) printk(BIOS_DEBUG, x, ##__VA_ARGS__) #else #define printram(x, ...) #endif /** @} */ /** Result of the SPD decoding process */ enum spd_status { SPD_STATUS_OK = 0, SPD_STATUS_INVALID, SPD_STATUS_CRC_ERROR, SPD_STATUS_INVALID_FIELD, }; u16 ddr_crc16(const u8 *ptr, int n_crc); #endif /* DEVICE_DRAM_COMMON_H */