1 /*
2  * Copyright (c) 2018-2022, 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 /* SMP protection on RCC registers access */
32 void stm32mp1_clk_rcc_regs_lock(void);
33 void stm32mp1_clk_rcc_regs_unlock(void);
34 
35 #ifdef STM32MP_SHARED_RESOURCES
36 void stm32mp1_register_clock_parents_secure(unsigned long id);
37 #endif
38 #endif /* STM32MP1_CLK_H */
39