diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/misc/stm32l4x5_rcc.h | 119 | ||||
| -rw-r--r-- | include/hw/misc/stm32l4x5_rcc_internals.h | 29 |
2 files changed, 148 insertions, 0 deletions
diff --git a/include/hw/misc/stm32l4x5_rcc.h b/include/hw/misc/stm32l4x5_rcc.h index 5157e96635..6719be9fbe 100644 --- a/include/hw/misc/stm32l4x5_rcc.h +++ b/include/hw/misc/stm32l4x5_rcc.h @@ -26,6 +26,122 @@ OBJECT_DECLARE_SIMPLE_TYPE(Stm32l4x5RccState, STM32L4X5_RCC) /* In the Stm32l4x5 clock tree, mux have at most 7 sources */ #define RCC_NUM_CLOCK_MUX_SRC 7 +/* NB: Prescaler are assimilated to mux with one source and one output */ +typedef enum RccClockMux { + /* Internal muxes that arent't exposed publicly to other peripherals */ + RCC_CLOCK_MUX_SYSCLK, + RCC_CLOCK_MUX_PLL_INPUT, + RCC_CLOCK_MUX_HCLK, + RCC_CLOCK_MUX_PCLK1, + RCC_CLOCK_MUX_PCLK2, + RCC_CLOCK_MUX_HSE_OVER_32, + RCC_CLOCK_MUX_LCD_AND_RTC_COMMON, + + /* Muxes with a publicly available output */ + RCC_CLOCK_MUX_CORTEX_REFCLK, + RCC_CLOCK_MUX_USART1, + RCC_CLOCK_MUX_USART2, + RCC_CLOCK_MUX_USART3, + RCC_CLOCK_MUX_UART4, + RCC_CLOCK_MUX_UART5, + RCC_CLOCK_MUX_LPUART1, + RCC_CLOCK_MUX_I2C1, + RCC_CLOCK_MUX_I2C2, + RCC_CLOCK_MUX_I2C3, + RCC_CLOCK_MUX_LPTIM1, + RCC_CLOCK_MUX_LPTIM2, + RCC_CLOCK_MUX_SWPMI1, + RCC_CLOCK_MUX_MCO, + RCC_CLOCK_MUX_LSCO, + RCC_CLOCK_MUX_DFSDM1, + RCC_CLOCK_MUX_ADC, + RCC_CLOCK_MUX_CLK48, + RCC_CLOCK_MUX_SAI1, + RCC_CLOCK_MUX_SAI2, + + /* + * Mux that have only one input and one output assigned to as peripheral. + * They could be direct lines but it is simpler + * to use the same logic for all outputs. + */ + /* - AHB1 */ + RCC_CLOCK_MUX_TSC, + RCC_CLOCK_MUX_CRC, + RCC_CLOCK_MUX_FLASH, + RCC_CLOCK_MUX_DMA2, + RCC_CLOCK_MUX_DMA1, + + /* - AHB2 */ + RCC_CLOCK_MUX_RNG, + RCC_CLOCK_MUX_AES, + RCC_CLOCK_MUX_OTGFS, + RCC_CLOCK_MUX_GPIOA, + RCC_CLOCK_MUX_GPIOB, + RCC_CLOCK_MUX_GPIOC, + RCC_CLOCK_MUX_GPIOD, + RCC_CLOCK_MUX_GPIOE, + RCC_CLOCK_MUX_GPIOF, + RCC_CLOCK_MUX_GPIOG, + RCC_CLOCK_MUX_GPIOH, + + /* - AHB3 */ + RCC_CLOCK_MUX_QSPI, + RCC_CLOCK_MUX_FMC, + + /* - APB1 */ + RCC_CLOCK_MUX_OPAMP, + RCC_CLOCK_MUX_DAC1, + RCC_CLOCK_MUX_PWR, + RCC_CLOCK_MUX_CAN1, + RCC_CLOCK_MUX_SPI3, + RCC_CLOCK_MUX_SPI2, + RCC_CLOCK_MUX_WWDG, + RCC_CLOCK_MUX_LCD, + RCC_CLOCK_MUX_TIM7, + RCC_CLOCK_MUX_TIM6, + RCC_CLOCK_MUX_TIM5, + RCC_CLOCK_MUX_TIM4, + RCC_CLOCK_MUX_TIM3, + RCC_CLOCK_MUX_TIM2, + + /* - APB2 */ + RCC_CLOCK_MUX_TIM17, + RCC_CLOCK_MUX_TIM16, + RCC_CLOCK_MUX_TIM15, + RCC_CLOCK_MUX_TIM8, + RCC_CLOCK_MUX_SPI1, + RCC_CLOCK_MUX_TIM1, + RCC_CLOCK_MUX_SDMMC1, + RCC_CLOCK_MUX_FW, + RCC_CLOCK_MUX_SYSCFG, + + /* - BDCR */ + RCC_CLOCK_MUX_RTC, + + /* - OTHER */ + RCC_CLOCK_MUX_CORTEX_FCLK, + + RCC_NUM_CLOCK_MUX +} RccClockMux; + +typedef struct RccClockMuxState { + DeviceState parent_obj; + + RccClockMux id; + Clock *srcs[RCC_NUM_CLOCK_MUX_SRC]; + Clock *out; + bool enabled; + uint32_t src; + uint32_t multiplier; + uint32_t divider; + + /* + * Used by clock srcs update callback to retrieve both the clock and the + * source number. + */ + struct RccClockMuxState *backref[RCC_NUM_CLOCK_MUX_SRC]; +} RccClockMuxState; + struct Stm32l4x5RccState { SysBusDevice parent_obj; @@ -71,6 +187,9 @@ struct Stm32l4x5RccState { Clock *sai1_extclk; Clock *sai2_extclk; + /* Muxes ~= outputs */ + RccClockMuxState clock_muxes[RCC_NUM_CLOCK_MUX]; + qemu_irq irq; uint64_t hse_frequency; uint64_t sai1_extclk_frequency; diff --git a/include/hw/misc/stm32l4x5_rcc_internals.h b/include/hw/misc/stm32l4x5_rcc_internals.h index 331ea30db5..4aa836848b 100644 --- a/include/hw/misc/stm32l4x5_rcc_internals.h +++ b/include/hw/misc/stm32l4x5_rcc_internals.h @@ -21,6 +21,8 @@ #include "hw/registerfields.h" #include "hw/misc/stm32l4x5_rcc.h" +#define TYPE_RCC_CLOCK_MUX "stm32l4x5-rcc-clock-mux" +OBJECT_DECLARE_SIMPLE_TYPE(RccClockMuxState, RCC_CLOCK_MUX) /* Register map */ REG32(CR, 0x00) @@ -283,4 +285,31 @@ REG32(CSR, 0x94) R_CSR_FWRSTF_MASK | \ R_CSR_LSIRDY_MASK) +typedef enum RccClockMuxSource { + RCC_CLOCK_MUX_SRC_GND = 0, + RCC_CLOCK_MUX_SRC_HSI, + RCC_CLOCK_MUX_SRC_HSE, + RCC_CLOCK_MUX_SRC_MSI, + RCC_CLOCK_MUX_SRC_LSI, + RCC_CLOCK_MUX_SRC_LSE, + RCC_CLOCK_MUX_SRC_SAI1_EXTCLK, + RCC_CLOCK_MUX_SRC_SAI2_EXTCLK, + RCC_CLOCK_MUX_SRC_PLL, + RCC_CLOCK_MUX_SRC_PLLSAI1, + RCC_CLOCK_MUX_SRC_PLLSAI2, + RCC_CLOCK_MUX_SRC_PLLSAI3, + RCC_CLOCK_MUX_SRC_PLL48M1, + RCC_CLOCK_MUX_SRC_PLL48M2, + RCC_CLOCK_MUX_SRC_PLLADC1, + RCC_CLOCK_MUX_SRC_PLLADC2, + RCC_CLOCK_MUX_SRC_SYSCLK, + RCC_CLOCK_MUX_SRC_HCLK, + RCC_CLOCK_MUX_SRC_PCLK1, + RCC_CLOCK_MUX_SRC_PCLK2, + RCC_CLOCK_MUX_SRC_HSE_OVER_32, + RCC_CLOCK_MUX_SRC_LCD_AND_RTC_COMMON, + + RCC_CLOCK_MUX_SRC_NUMBER, +} RccClockMuxSource; + #endif /* HW_STM32L4X5_RCC_INTERNALS_H */ |