| /* |
| * Copyright (c) 2022 Linaro Limited |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| #ifndef ZEPHYR_INCLUDE_DT_BINDINGS_CLOCK_STM32U5_CLOCK_H_ |
| #define ZEPHYR_INCLUDE_DT_BINDINGS_CLOCK_STM32U5_CLOCK_H_ |
| |
| /** Peripheral clock sources */ |
| |
| /* RM0468, Table 56 Kernel clock distribution summary */ |
| |
| /** PLL outputs */ |
| #define STM32_SRC_PLL1_P 0x001 |
| #define STM32_SRC_PLL1_Q 0x002 |
| #define STM32_SRC_PLL1_R 0x003 |
| /** PLL2/3 not yet supported */ |
| /* #define STM32_SRC_PLL2_P 0x004 */ |
| /* #define STM32_SRC_PLL2_Q 0x005 */ |
| /* #define STM32_SRC_PLL2_R 0x006 */ |
| /* #define STM32_SRC_PLL3_P 0x007 */ |
| /* #define STM32_SRC_PLL3_Q 0x008 */ |
| /* #define STM32_SRC_PLL3_R 0x009 */ |
| /** Fixed clocks */ |
| #define STM32_SRC_HSE 0x00A |
| #define STM32_SRC_LSE 0x00B |
| #define STM32_SRC_LSI 0x00C |
| #define STM32_SRC_HSI16 0x00D |
| /* #define STM32_SRC_HSI48 0x00E */ |
| #define STM32_SRC_MSIS 0x00F |
| #define STM32_SRC_MSIK 0x010 |
| /** Core clock */ |
| #define STM32_SRC_SYSCLK 0x011 |
| /** Clock muxes */ |
| /* #define STM32_SRC_ICLK 0x012 */ |
| |
| /** Bus clocks */ |
| #define STM32_CLOCK_BUS_AHB1 0x088 |
| #define STM32_CLOCK_BUS_AHB2 0x08C |
| #define STM32_CLOCK_BUS_AHB2_2 0x090 |
| #define STM32_CLOCK_BUS_AHB3 0x094 |
| #define STM32_CLOCK_BUS_APB1 0x09C |
| #define STM32_CLOCK_BUS_APB1_2 0x0A0 |
| #define STM32_CLOCK_BUS_APB2 0x0A4 |
| #define STM32_CLOCK_BUS_APB3 0x0A8 |
| |
| #define STM32_PERIPH_BUS_MIN STM32_CLOCK_BUS_AHB1 |
| #define STM32_PERIPH_BUS_MAX STM32_CLOCK_BUS_APB3 |
| |
| /** |
| * @brief STM32U5 clock configuration bit field. |
| * |
| * - reg (1/2/3) [ 0 : 7 ] |
| * - shift (0..31) [ 8 : 12 ] |
| * - mask (0x1, 0x3, 0x7) [ 13 : 15 ] |
| * - val (0..7) [ 16 : 18 ] |
| * |
| * @param reg RCC_CCIPRx register offset |
| * @param shift Position within RCC_CCIPRx. |
| * @param mask Mask for the RCC_CCIPRx field. |
| * @param val Clock value (0, 1, ... 7). |
| */ |
| |
| #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)) |
| |
| /** @brief RCC_CCIPRx register offset (RM0456.pdf) */ |
| #define CCIPR1_REG 0xE0 |
| #define CCIPR2_REG 0xE4 |
| #define CCIPR3_REG 0xE8 |
| |
| /** @brief Device clk sources selection helpers */ |
| /** CCIPR1 devices */ |
| #define USART1_SEL(val) STM32_CLOCK(val, 3, 0, CCIPR1_REG) |
| #define USART2_SEL(val) STM32_CLOCK(val, 3, 2, CCIPR1_REG) |
| #define USART3_SEL(val) STM32_CLOCK(val, 3, 4, CCIPR1_REG) |
| #define USART4_SEL(val) STM32_CLOCK(val, 3, 6, CCIPR1_REG) |
| #define USART5_SEL(val) STM32_CLOCK(val, 3, 8, CCIPR1_REG) |
| #define I2C1_SEL(val) STM32_CLOCK(val, 3, 10, CCIPR1_REG) |
| #define I2C2_SEL(val) STM32_CLOCK(val, 3, 12, CCIPR1_REG) |
| #define I2C4_SEL(val) STM32_CLOCK(val, 3, 14, CCIPR1_REG) |
| #define SPI2_SEL(val) STM32_CLOCK(val, 3, 16, CCIPR1_REG) |
| #define LPTIM2_SEL(val) STM32_CLOCK(val, 3, 18, CCIPR1_REG) |
| #define SPI1_SEL(val) STM32_CLOCK(val, 3, 20, CCIPR1_REG) |
| #define SYSTICK_SEL(val) STM32_CLOCK(val, 3, 22, CCIPR1_REG) |
| #define FDCAN1_SEL(val) STM32_CLOCK(val, 3, 24, CCIPR1_REG) |
| #define ICKLK_SEL(val) STM32_CLOCK(val, 3, 26, CCIPR1_REG) |
| #define TIMIC_SEL(val) STM32_CLOCK(val, 7, 29, CCIPR1_REG) |
| /** CCIPR2 devices */ |
| #define MDF1_SEL(val) STM32_CLOCK(val, 7, 0, CCIPR2_REG) |
| #define SAI1_SEL(val) STM32_CLOCK(val, 7, 5, CCIPR2_REG) |
| #define SAI2_SEL(val) STM32_CLOCK(val, 7, 8, CCIPR2_REG) |
| #define SAE_SEL(val) STM32_CLOCK(val, 1, 11, CCIPR2_REG) |
| #define RNG_SEL(val) STM32_CLOCK(val, 3, 12, CCIPR2_REG) |
| #define SDMMC_SEL(val) STM32_CLOCK(val, 1, 14, CCIPR2_REG) |
| #define OCTOSPI_SEL(val) STM32_CLOCK(val, 3, 20, CCIPR2_REG) |
| /** CCIPR3 devices */ |
| #define LPUART1_SEL(val) STM32_CLOCK(val, 7, 0, CCIPR3_REG) |
| #define SPI3_SEL(val) STM32_CLOCK(val, 3, 3, CCIPR3_REG) |
| #define I2C3_SEL(val) STM32_CLOCK(val, 3, 6, CCIPR3_REG) |
| #define LPTIM34_SEL(val) STM32_CLOCK(val, 3, 8, CCIPR3_REG) |
| #define LPTIM1_SEL(val) STM32_CLOCK(val, 3, 10, CCIPR3_REG) |
| #define ADCDAC_SEL(val) STM32_CLOCK(val, 7, 12, CCIPR3_REG) |
| #define DAC1_SEL(val) STM32_CLOCK(val, 1, 15, CCIPR3_REG) |
| #define ADF1_SEL(val) STM32_CLOCK(val, 7, 16, CCIPR3_REG) |
| |
| #endif /* ZEPHYR_INCLUDE_DT_BINDINGS_CLOCK_STM32U5_CLOCK_H_ */ |
