1 /* 2 * Copyright (c) 2024-2026, STMicroelectronics - All Rights Reserved 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #ifndef STM32MP2_DDR_HELPERS_H 8 #define STM32MP2_DDR_HELPERS_H 9 10 #include <stdbool.h> 11 #include <stdint.h> 12 13 #include <drivers/st/stm32mp2_ddr_regs.h> 14 15 enum stm32mp2_ddr_sr_mode { 16 DDR_SR_MODE_INVALID = 0, 17 DDR_SSR_MODE, 18 DDR_HSR_MODE, 19 DDR_ASR_MODE, 20 }; 21 22 void ddr_activate_controller(struct stm32mp_ddrctl *ctl, bool sr_entry); 23 void ddr_wait_lp3_mode(bool state); 24 int ddr_sr_exit_loop(void); 25 bool is_ddr_cid_filtering_enabled(void); 26 void ddr_enable_cid_filtering(void); 27 void ddr_disable_cid_filtering(void); 28 int ddr_sr_entry(bool standby); 29 int ddr_sr_exit(void); 30 enum stm32mp2_ddr_sr_mode ddr_read_sr_mode(void); 31 void ddr_set_sr_mode(enum stm32mp2_ddr_sr_mode mode); 32 void ddr_save_sr_mode(void); 33 void ddr_restore_sr_mode(void); 34 void ddr_sub_system_clk_init(void); 35 void ddr_sub_system_clk_off(void); 36 37 #endif /* STM32MP2_DDR_HELPERS_H */ 38