stm32f7_clock.h

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/*
 * Copyright (c) 2022 STMicroelectronics
 *
 * SPDX-License-Identifier: Apache-2.0
 */
#ifndef ZEPHYR_INCLUDE_DT_BINDINGS_CLOCK_STM32F7_CLOCK_H_
#define ZEPHYR_INCLUDE_DT_BINDINGS_CLOCK_STM32F7_CLOCK_H_
 
#define STM32_CLOCK_BUS_AHB1    0x030
#define STM32_CLOCK_BUS_AHB2    0x034
#define STM32_CLOCK_BUS_AHB3    0x038
#define STM32_CLOCK_BUS_APB1    0x040
#define STM32_CLOCK_BUS_APB2    0x044
#define STM32_CLOCK_BUS_APB3    0x0A8
 
#define STM32_PERIPH_BUS_MIN    STM32_CLOCK_BUS_AHB1
#define STM32_PERIPH_BUS_MAX    STM32_CLOCK_BUS_APB3
 
/* RM0386, 0390, 0402, 0430 § Dedicated Clock configuration register (RCC_DCKCFGRx) */
 
#define STM32_SRC_PLL_P 0x001
#define STM32_SRC_PLL_Q 0x002
#define STM32_SRC_PLL_R 0x003
#define STM32_SRC_LSE   0x004
#define STM32_SRC_LSI   0x005
#define STM32_SRC_HSI   0x008
#define STM32_SRC_SYSCLK 0x006
#define STM32_SRC_PCLK  0x007
 
 
#define STM32_CLOCK_REG_MASK    0xFFU
#define STM32_CLOCK_REG_SHIFT   0U
#define STM32_CLOCK_SHIFT_MASK  0x1FU
#define STM32_CLOCK_SHIFT_SHIFT 8U
#define STM32_CLOCK_MASK_MASK   0x7U
#define STM32_CLOCK_MASK_SHIFT  13U
#define STM32_CLOCK_VAL_MASK    0x7U
#define STM32_CLOCK_VAL_SHIFT   16U
 
#define STM32_CLOCK(val, mask, shift, reg)                                      \
        ((((reg) & STM32_CLOCK_REG_MASK) << STM32_CLOCK_REG_SHIFT) |            \
         (((shift) & STM32_CLOCK_SHIFT_MASK) << STM32_CLOCK_SHIFT_SHIFT) |      \
         (((mask) & STM32_CLOCK_MASK_MASK) << STM32_CLOCK_MASK_SHIFT) |         \
         (((val) & STM32_CLOCK_VAL_MASK) << STM32_CLOCK_VAL_SHIFT))
 
#define CFGR_REG                0x08
 
#define BDCR_REG                0x70
 
#define I2S_SEL(val)            STM32_CLOCK(val, 1, 23, CFGR_REG)
#define RTC_SEL(val)            STM32_CLOCK(val, 3, 8, BDCR_REG)
 
#define DCKCFGR1_REG            0x8C
#define DCKCFGR2_REG            0x90
 
#define USART1_SEL(val)         STM32_CLOCK(val, 3, 0, DCKCFGR2_REG)
#define USART2_SEL(val)         STM32_CLOCK(val, 3, 2, DCKCFGR2_REG)
#define USART3_SEL(val)         STM32_CLOCK(val, 3, 4, DCKCFGR2_REG)
#define USART4_SEL(val)         STM32_CLOCK(val, 3, 6, DCKCFGR2_REG)
#define USART5_SEL(val)         STM32_CLOCK(val, 3, 8, DCKCFGR2_REG)
#define USART6_SEL(val)         STM32_CLOCK(val, 3, 10, DCKCFGR2_REG)
#define USART7_SEL(val)         STM32_CLOCK(val, 3, 12, DCKCFGR2_REG)
#define USART8_SEL(val)         STM32_CLOCK(val, 3, 14, DCKCFGR2_REG)
#define I2C1_SEL(val)           STM32_CLOCK(val, 3, 16, DCKCFGR2_REG)
#define I2C2_SEL(val)           STM32_CLOCK(val, 3, 18, DCKCFGR2_REG)
#define I2C3_SEL(val)           STM32_CLOCK(val, 3, 20, DCKCFGR2_REG)
#define I2C4_SEL(val)           STM32_CLOCK(val, 3, 22, DCKCFGR2_REG)
#define LPTIM1_SEL(val)         STM32_CLOCK(val, 3, 24, DCKCFGR2_REG)
#define CEC_SEL(val)            STM32_CLOCK(val, 1, 26, DCKCFGR2_REG)
#define CK48M_SEL(val)          STM32_CLOCK(val, 1, 27, DCKCFGR2_REG)
#define SDMMC1_SEL(val)         STM32_CLOCK(val, 1, 28, DCKCFGR2_REG)
#define SDMMC2_SEL(val)         STM32_CLOCK(val, 1, 29, DCKCFGR2_REG)
#define DSI_SEL(val)            STM32_CLOCK(val, 1, 30, DCKCFGR2_REG)
#define NO_SEL                  0xFF
 
#endif /* ZEPHYR_INCLUDE_DT_BINDINGS_CLOCK_STM32F7_CLOCK_H_ */