stm32h7_clock.h

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/*
 * Copyright (c) 2022 Linaro Limited
 *
 * SPDX-License-Identifier: Apache-2.0
 */
#ifndef ZEPHYR_INCLUDE_DT_BINDINGS_CLOCK_STM32H7_CLOCK_H_
#define ZEPHYR_INCLUDE_DT_BINDINGS_CLOCK_STM32H7_CLOCK_H_
 
/* RM0468, Table 56 Kernel clock dictribution summary */
 
#define STM32_SRC_PLL1_P        0x001
#define STM32_SRC_PLL1_Q        0x002
#define STM32_SRC_PLL1_R        0x003
#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
#define STM32_SRC_HSE           0x00A
#define STM32_SRC_LSE           0x00B
#define STM32_SRC_LSI           0x00C
#define STM32_SRC_HSI48         0x00D
#define STM32_SRC_HSI_KER       0x00E /* HSI + HSIKERON */
#define STM32_SRC_CSI_KER       0x00F /* CSI + CSIKERON */
#define STM32_SRC_SYSCLK        0x010
/* #define STM32_SRC_I2SCKIN    0x011 */
/* #define STM32_SRC_SPDIFRX    0x012 */
#define STM32_SRC_CKPER         0x013
 
#define STM32_CLOCK_BUS_AHB3    0x0D4
#define STM32_CLOCK_BUS_AHB1    0x0D8
#define STM32_CLOCK_BUS_AHB2    0x0DC
#define STM32_CLOCK_BUS_AHB4    0x0E0
#define STM32_CLOCK_BUS_APB3    0x0E4
#define STM32_CLOCK_BUS_APB1    0x0E8
#define STM32_CLOCK_BUS_APB1_2  0x0EC
#define STM32_CLOCK_BUS_APB2    0x0F0
#define STM32_CLOCK_BUS_APB4    0x0F4 /* TBD: To remove ? */
#define STM32_SRC_PCLK1         STM32_CLOCK_BUS_APB1
#define STM32_SRC_PCLK2         STM32_CLOCK_BUS_APB2
#define STM32_SRC_HCLK3         STM32_CLOCK_BUS_AHB3
#define STM32_SRC_PCLK3         STM32_CLOCK_BUS_APB3
#define STM32_SRC_PCLK4         STM32_CLOCK_BUS_APB4
 
#define STM32_PERIPH_BUS_MIN    STM32_CLOCK_BUS_AHB3
#define STM32_PERIPH_BUS_MAX    STM32_CLOCK_BUS_APB4
 
#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 D1CCIPR_REG             0x4C
#define D2CCIP1R_REG            0x50
#define D2CCIP2R_REG            0x54
#define D3CCIPR_REG             0x58
 
#define BDCR_REG                0x70
 
#define FMC_SEL(val)            STM32_CLOCK(val, 3, 0, D1CCIPR_REG)
#define QSPI_SEL(val)           STM32_CLOCK(val, 3, 4, D1CCIPR_REG)
#define DSI_SEL(val)            STM32_CLOCK(val, 1, 8, D1CCIPR_REG)
#define SDMMC_SEL(val)          STM32_CLOCK(val, 1, 16, D1CCIPR_REG)
#define CKPER_SEL(val)          STM32_CLOCK(val, 3, 28, D1CCIPR_REG)
/* Device domain clocks selection helpers (RM0468.pdf) */
#define OSPI_SEL(val)           STM32_CLOCK(val, 3, 4, D1CCIPR_REG)
#define SAI1_SEL(val)           STM32_CLOCK(val, 7, 0, D2CCIP1R_REG)
#define SAI23_SEL(val)          STM32_CLOCK(val, 7, 6, D2CCIP1R_REG)
#define SPI123_SEL(val)         STM32_CLOCK(val, 7, 12, D2CCIP1R_REG)
#define SPI45_SEL(val)          STM32_CLOCK(val, 7, 16, D2CCIP1R_REG)
#define SPDIF_SEL(val)          STM32_CLOCK(val, 3, 20, D2CCIP1R_REG)
#define DFSDM1_SEL(val)         STM32_CLOCK(val, 1, 24, D2CCIP1R_REG)
#define FDCAN_SEL(val)          STM32_CLOCK(val, 3, 28, D2CCIP1R_REG)
#define SWP_SEL(val)            STM32_CLOCK(val, 1, 31, D2CCIP1R_REG)
#define USART2345678_SEL(val)   STM32_CLOCK(val, 7, 0, D2CCIP2R_REG)
#define USART16_SEL(val)        STM32_CLOCK(val, 7, 3, D2CCIP2R_REG)
#define RNG_SEL(val)            STM32_CLOCK(val, 3, 8, D2CCIP2R_REG)
#define I2C123_SEL(val)         STM32_CLOCK(val, 3, 12, D2CCIP2R_REG)
#define USB_SEL(val)            STM32_CLOCK(val, 3, 20, D2CCIP2R_REG)
#define CEC_SEL(val)            STM32_CLOCK(val, 3, 22, D2CCIP2R_REG)
#define LPTIM1_SEL(val)         STM32_CLOCK(val, 7, 28, D2CCIP2R_REG)
#define LPUART1_SEL(val)        STM32_CLOCK(val, 7, 0, D3CCIPR_REG)
#define I2C4_SEL(val)           STM32_CLOCK(val, 3, 8, D3CCIPR_REG)
#define LPTIM2_SEL(val)         STM32_CLOCK(val, 7, 10, D3CCIPR_REG)
#define LPTIM345_SEL(val)       STM32_CLOCK(val, 7, 13, D3CCIPR_REG)
#define ADC_SEL(val)            STM32_CLOCK(val, 3, 16, D3CCIPR_REG)
#define SAI4A_SEL(val)          STM32_CLOCK(val, 7, 21, D3CCIPR_REG)
#define SAI4B_SEL(val)          STM32_CLOCK(val, 7, 24, D3CCIPR_REG)
#define SPI6_SEL(val)           STM32_CLOCK(val, 7, 28, D3CCIPR_REG)
#define RTC_SEL(val)            STM32_CLOCK(val, 3, 8, BDCR_REG)
#define NO_SEL                  0xFF
 
#endif /* ZEPHYR_INCLUDE_DT_BINDINGS_CLOCK_STM32H7_CLOCK_H_ */