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Yann Gautier9aea69e2018-07-24 17:13:36 +02001/*
Yann Gautiera2e2a302019-02-14 11:13:39 +01002 * Copyright (c) 2018-2019, STMicroelectronics - All Rights Reserved
Yann Gautier9aea69e2018-07-24 17:13:36 +02003 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6
Antonio Nino Diaz5eb88372018-11-08 10:20:19 +00007#ifndef STM32MP1_CLK_H
8#define STM32MP1_CLK_H
Yann Gautier9aea69e2018-07-24 17:13:36 +02009
Antonio Nino Diaze0f90632018-12-14 00:18:21 +000010#include <arch_helpers.h>
11
Yann Gautier5f2e8742019-05-17 15:57:56 +020012enum 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
23extern const char *stm32mp_osc_node_label[NB_OSC];
24
Yann Gautier9aea69e2018-07-24 17:13:36 +020025int stm32mp1_clk_probe(void);
26int stm32mp1_clk_init(void);
Yann Gautiere4a3c352019-02-14 10:53:33 +010027
28bool stm32mp1_rcc_is_secure(void);
Yann Gautiered342322019-02-15 17:33:27 +010029bool stm32mp1_rcc_is_mckprot(void);
Yann Gautiere4a3c352019-02-14 10:53:33 +010030
31void __stm32mp1_clk_enable(unsigned long id, bool caller_is_secure);
32void __stm32mp1_clk_disable(unsigned long id, bool caller_is_secure);
33
34static inline void stm32mp1_clk_enable_non_secure(unsigned long id)
35{
36 __stm32mp1_clk_enable(id, false);
37}
38
39static inline void stm32mp1_clk_enable_secure(unsigned long id)
40{
41 __stm32mp1_clk_enable(id, true);
42}
43
44static inline void stm32mp1_clk_disable_non_secure(unsigned long id)
45{
46 __stm32mp1_clk_disable(id, false);
47}
48
49static inline void stm32mp1_clk_disable_secure(unsigned long id)
50{
51 __stm32mp1_clk_disable(id, true);
52}
53
54unsigned int stm32mp1_clk_get_refcount(unsigned long id);
55
56/* SMP protection on RCC registers access */
57void stm32mp1_clk_rcc_regs_lock(void);
58void stm32mp1_clk_rcc_regs_unlock(void);
59
Yann Gautier9aea69e2018-07-24 17:13:36 +020060void stm32mp1_stgen_increment(unsigned long long offset_in_ms);
61
Antonio Nino Diaz5eb88372018-11-08 10:20:19 +000062#endif /* STM32MP1_CLK_H */