1 /* 2 * Copyright (c) 2018-2019, STMicroelectronics - All Rights Reserved 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #ifndef STM32MP1_CLK_H 8 #define STM32MP1_CLK_H 9 10 #include <arch_helpers.h> 11 12 enum stm32mp_osc_id { 13 _HSI, 14 _HSE, 15 _CSI, 16 _LSI, 17 _LSE, 18 _I2S_CKIN, 19 NB_OSC, 20 _UNKNOWN_OSC_ID = 0xFF 21 }; 22 23 extern const char *stm32mp_osc_node_label[NB_OSC]; 24 25 int stm32mp1_clk_probe(void); 26 int stm32mp1_clk_init(void); 27 28 bool stm32mp1_rcc_is_secure(void); 29 bool stm32mp1_rcc_is_mckprot(void); 30 31 void __stm32mp1_clk_enable(unsigned long id, bool caller_is_secure); 32 void __stm32mp1_clk_disable(unsigned long id, bool caller_is_secure); 33 34 static inline void stm32mp1_clk_enable_non_secure(unsigned long id) 35 { 36 __stm32mp1_clk_enable(id, false); 37 } 38 39 static inline void stm32mp1_clk_enable_secure(unsigned long id) 40 { 41 __stm32mp1_clk_enable(id, true); 42 } 43 44 static inline void stm32mp1_clk_disable_non_secure(unsigned long id) 45 { 46 __stm32mp1_clk_disable(id, false); 47 } 48 49 static inline void stm32mp1_clk_disable_secure(unsigned long id) 50 { 51 __stm32mp1_clk_disable(id, true); 52 } 53 54 unsigned int stm32mp1_clk_get_refcount(unsigned long id); 55 56 /* SMP protection on RCC registers access */ 57 void stm32mp1_clk_rcc_regs_lock(void); 58 void stm32mp1_clk_rcc_regs_unlock(void); 59 60 void stm32mp1_stgen_increment(unsigned long long offset_in_ms); 61 62 #ifdef STM32MP_SHARED_RESOURCES 63 void stm32mp1_register_clock_parents_secure(unsigned long id); 64 #endif 65 #endif /* STM32MP1_CLK_H */ 66