stm32u0_clock.h

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/*
 * Copyright (c) 2024 STMicroelectronics
 *
 * SPDX-License-Identifier: Apache-2.0
 */
#ifndef ZEPHYR_INCLUDE_DT_BINDINGS_CLOCK_STM32U0_CLOCK_H_
#define ZEPHYR_INCLUDE_DT_BINDINGS_CLOCK_STM32U0_CLOCK_H_
 
#include <zephyr/dt-bindings/clock/stm32_common_clocks.h>


#define STM32_CLOCK_BUS_AHB1    0x48
#define STM32_CLOCK_BUS_IOP     0x4C
#define STM32_CLOCK_BUS_APB1    0x58
#define STM32_CLOCK_BUS_APB1_2  0x60
 
#define STM32_PERIPH_BUS_MIN    STM32_CLOCK_BUS_AHB1
#define STM32_PERIPH_BUS_MAX    STM32_CLOCK_BUS_APB1_2

/* RM0503, clock configuration register (RCC_CCIPR) */

/* defined in stm32_common_clocks.h */

/* Low speed clocks defined in stm32_common_clocks.h */
#define STM32_SRC_HSI           (STM32_SRC_LSI + 1)
#define STM32_SRC_HSI48         (STM32_SRC_HSI + 1)
#define STM32_SRC_MSI           (STM32_SRC_HSI48 + 1)
#define STM32_SRC_HSE           (STM32_SRC_MSI + 1)
#define STM32_SRC_PCLK          (STM32_SRC_HSE + 1)
#define STM32_SRC_PLL_P         (STM32_SRC_PCLK + 1)
#define STM32_SRC_PLL_Q         (STM32_SRC_PLL_P + 1)
#define STM32_SRC_PLL_R         (STM32_SRC_PLL_Q + 1)
#define STM32_SRC_CK48          (STM32_SRC_PLL_R + 1)

#define CCIPR_REG               0x88

#define BDCR_REG                0x90

#define USART1_SEL(val)         STM32_DT_CLOCK_SELECT((val), 1, 0, CCIPR_REG)
#define USART2_SEL(val)         STM32_DT_CLOCK_SELECT((val), 3, 2, CCIPR_REG)
#define LPUART3_SEL(val)        STM32_DT_CLOCK_SELECT((val), 7, 6, CCIPR_REG)
#define LPUART2_SEL(val)        STM32_DT_CLOCK_SELECT((val), 9, 8, CCIPR_REG)
#define LPUART1_SEL(val)        STM32_DT_CLOCK_SELECT((val), 11, 10, CCIPR_REG)
#define I2C1_SEL(val)           STM32_DT_CLOCK_SELECT((val), 13, 12, CCIPR_REG)
#define I2C3_SEL(val)           STM32_DT_CLOCK_SELECT((val), 17, 16, CCIPR_REG)
#define LPTIM1_SEL(val)         STM32_DT_CLOCK_SELECT((val), 19, 18, CCIPR_REG)
#define LPTIM2_SEL(val)         STM32_DT_CLOCK_SELECT((val), 21, 20, CCIPR_REG)
#define LPTIM3_SEL(val)         STM32_DT_CLOCK_SELECT((val), 23, 22, CCIPR_REG)
#define TIM1_SEL(val)           STM32_DT_CLOCK_SELECT((val), 24, 24, CCIPR_REG)
#define TIM15_SEL(val)          STM32_DT_CLOCK_SELECT((val), 25, 25, CCIPR_REG)
#define CLK48_SEL(val)          STM32_DT_CLOCK_SELECT((val), 27, 26, CCIPR_REG)
#define ADC_SEL(val)            STM32_DT_CLOCK_SELECT((val), 29, 28, CCIPR_REG)
#define RTC_SEL(val)            STM32_DT_CLOCK_SELECT((val), 9, 8, BDCR_REG)

 
#endif /* ZEPHYR_INCLUDE_DT_BINDINGS_CLOCK_STM32U0_CLOCK_H_ */