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https://github.com/ARM-software/arm-trusted-firmware.git
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37e8295abd
Introduce stm32mp1_register_clock_parents_secure() in stm32mp1 clock driver to allow platform shared resources to register as secure the parent clocks of a clock registered as secure. Change-Id: I53a9ab6aa78ee840ededce67e7b12a84e08ee843 Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
/*
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* Copyright (c) 2018-2019, STMicroelectronics - All Rights Reserved
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef STM32MP1_CLK_H
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#define STM32MP1_CLK_H
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#include <arch_helpers.h>
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enum stm32mp_osc_id {
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_HSI,
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_HSE,
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_CSI,
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_LSI,
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_LSE,
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_I2S_CKIN,
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NB_OSC,
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_UNKNOWN_OSC_ID = 0xFF
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};
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extern const char *stm32mp_osc_node_label[NB_OSC];
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int stm32mp1_clk_probe(void);
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int stm32mp1_clk_init(void);
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bool stm32mp1_rcc_is_secure(void);
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bool stm32mp1_rcc_is_mckprot(void);
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void __stm32mp1_clk_enable(unsigned long id, bool caller_is_secure);
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void __stm32mp1_clk_disable(unsigned long id, bool caller_is_secure);
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static inline void stm32mp1_clk_enable_non_secure(unsigned long id)
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{
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__stm32mp1_clk_enable(id, false);
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}
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static inline void stm32mp1_clk_enable_secure(unsigned long id)
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{
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__stm32mp1_clk_enable(id, true);
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}
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static inline void stm32mp1_clk_disable_non_secure(unsigned long id)
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{
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__stm32mp1_clk_disable(id, false);
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}
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static inline void stm32mp1_clk_disable_secure(unsigned long id)
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{
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__stm32mp1_clk_disable(id, true);
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}
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unsigned int stm32mp1_clk_get_refcount(unsigned long id);
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/* SMP protection on RCC registers access */
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void stm32mp1_clk_rcc_regs_lock(void);
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void stm32mp1_clk_rcc_regs_unlock(void);
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void stm32mp1_stgen_increment(unsigned long long offset_in_ms);
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#ifdef STM32MP_SHARED_RESOURCES
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void stm32mp1_register_clock_parents_secure(unsigned long id);
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#endif
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#endif /* STM32MP1_CLK_H */
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