diff options
Diffstat (limited to 'include/hw/misc')
| -rw-r--r-- | include/hw/misc/stm32l4x5_rcc.h | 80 | ||||
| -rw-r--r-- | include/hw/misc/stm32l4x5_rcc_internals.h | 286 |
2 files changed, 366 insertions, 0 deletions
diff --git a/include/hw/misc/stm32l4x5_rcc.h b/include/hw/misc/stm32l4x5_rcc.h new file mode 100644 index 0000000000..5157e96635 --- /dev/null +++ b/include/hw/misc/stm32l4x5_rcc.h @@ -0,0 +1,80 @@ +/* + * STM32L4X5 RCC (Reset and clock control) + * + * Copyright (c) 2023 Arnaud Minier <arnaud.minier@telecom-paris.fr> + * Copyright (c) 2023 Inès Varhol <ines.varhol@telecom-paris.fr> + * + * SPDX-License-Identifier: GPL-2.0-or-later + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + * + * The reference used is the STMicroElectronics RM0351 Reference manual + * for STM32L4x5 and STM32L4x6 advanced Arm ® -based 32-bit MCUs. + * + * Inspired by the BCM2835 CPRMAN clock manager by Luc Michel. + */ + +#ifndef HW_STM32L4X5_RCC_H +#define HW_STM32L4X5_RCC_H + +#include "hw/sysbus.h" +#include "qom/object.h" + +#define TYPE_STM32L4X5_RCC "stm32l4x5-rcc" +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 +struct Stm32l4x5RccState { + SysBusDevice parent_obj; + + MemoryRegion mmio; + + uint32_t cr; + uint32_t icscr; + uint32_t cfgr; + uint32_t pllcfgr; + uint32_t pllsai1cfgr; + uint32_t pllsai2cfgr; + uint32_t cier; + uint32_t cifr; + uint32_t ahb1rstr; + uint32_t ahb2rstr; + uint32_t ahb3rstr; + uint32_t apb1rstr1; + uint32_t apb1rstr2; + uint32_t apb2rstr; + uint32_t ahb1enr; + uint32_t ahb2enr; + uint32_t ahb3enr; + uint32_t apb1enr1; + uint32_t apb1enr2; + uint32_t apb2enr; + uint32_t ahb1smenr; + uint32_t ahb2smenr; + uint32_t ahb3smenr; + uint32_t apb1smenr1; + uint32_t apb1smenr2; + uint32_t apb2smenr; + uint32_t ccipr; + uint32_t bdcr; + uint32_t csr; + + /* Clock sources */ + Clock *gnd; + Clock *hsi16_rc; + Clock *msi_rc; + Clock *hse; + Clock *lsi_rc; + Clock *lse_crystal; + Clock *sai1_extclk; + Clock *sai2_extclk; + + qemu_irq irq; + uint64_t hse_frequency; + uint64_t sai1_extclk_frequency; + uint64_t sai2_extclk_frequency; +}; + +#endif /* HW_STM32L4X5_RCC_H */ diff --git a/include/hw/misc/stm32l4x5_rcc_internals.h b/include/hw/misc/stm32l4x5_rcc_internals.h new file mode 100644 index 0000000000..331ea30db5 --- /dev/null +++ b/include/hw/misc/stm32l4x5_rcc_internals.h @@ -0,0 +1,286 @@ +/* + * STM32L4X5 RCC (Reset and clock control) + * + * Copyright (c) 2023 Arnaud Minier <arnaud.minier@telecom-paris.fr> + * Copyright (c) 2023 Inès Varhol <ines.varhol@telecom-paris.fr> + * + * SPDX-License-Identifier: GPL-2.0-or-later + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + * + * The reference used is the STMicroElectronics RM0351 Reference manual + * for STM32L4x5 and STM32L4x6 advanced Arm ® -based 32-bit MCUs. + * + * Inspired by the BCM2835 CPRMAN clock manager implementation by Luc Michel. + */ + +#ifndef HW_STM32L4X5_RCC_INTERNALS_H +#define HW_STM32L4X5_RCC_INTERNALS_H + +#include "hw/registerfields.h" +#include "hw/misc/stm32l4x5_rcc.h" + + +/* Register map */ +REG32(CR, 0x00) + FIELD(CR, PLLSAI2RDY, 29, 1) + FIELD(CR, PLLSAI2ON, 28, 1) + FIELD(CR, PLLSAI1RDY, 27, 1) + FIELD(CR, PLLSAI1ON, 26, 1) + FIELD(CR, PLLRDY, 25, 1) + FIELD(CR, PLLON, 24, 1) + FIELD(CR, CSSON, 19, 1) + FIELD(CR, HSEBYP, 18, 1) + FIELD(CR, HSERDY, 17, 1) + FIELD(CR, HSEON, 16, 1) + FIELD(CR, HSIASFS, 11, 1) + FIELD(CR, HSIRDY, 10, 1) + FIELD(CR, HSIKERON, 9, 1) + FIELD(CR, HSION, 8, 1) + FIELD(CR, MSIRANGE, 4, 4) + FIELD(CR, MSIRGSEL, 3, 1) + FIELD(CR, MSIPLLEN, 2, 1) + FIELD(CR, MSIRDY, 1, 1) + FIELD(CR, MSION, 0, 1) +REG32(ICSCR, 0x04) + FIELD(ICSCR, HSITRIM, 24, 7) + FIELD(ICSCR, HSICAL, 16, 8) + FIELD(ICSCR, MSITRIM, 8, 8) + FIELD(ICSCR, MSICAL, 0, 8) +REG32(CFGR, 0x08) + FIELD(CFGR, MCOPRE, 28, 3) + /* MCOSEL[2:0] only for STM32L475xx/476xx/486xx devices */ + FIELD(CFGR, MCOSEL, 24, 3) + FIELD(CFGR, STOPWUCK, 15, 1) + FIELD(CFGR, PPRE2, 11, 3) + FIELD(CFGR, PPRE1, 8, 3) + FIELD(CFGR, HPRE, 4, 4) + FIELD(CFGR, SWS, 2, 2) + FIELD(CFGR, SW, 0, 2) +REG32(PLLCFGR, 0x0C) + FIELD(PLLCFGR, PLLPDIV, 27, 5) + FIELD(PLLCFGR, PLLR, 25, 2) + FIELD(PLLCFGR, PLLREN, 24, 1) + FIELD(PLLCFGR, PLLQ, 21, 2) + FIELD(PLLCFGR, PLLQEN, 20, 1) + FIELD(PLLCFGR, PLLP, 17, 1) + FIELD(PLLCFGR, PLLPEN, 16, 1) + FIELD(PLLCFGR, PLLN, 8, 7) + FIELD(PLLCFGR, PLLM, 4, 3) + FIELD(PLLCFGR, PLLSRC, 0, 2) +REG32(PLLSAI1CFGR, 0x10) + FIELD(PLLSAI1CFGR, PLLSAI1PDIV, 27, 5) + FIELD(PLLSAI1CFGR, PLLSAI1R, 25, 2) + FIELD(PLLSAI1CFGR, PLLSAI1REN, 24, 1) + FIELD(PLLSAI1CFGR, PLLSAI1Q, 21, 2) + FIELD(PLLSAI1CFGR, PLLSAI1QEN, 20, 1) + FIELD(PLLSAI1CFGR, PLLSAI1P, 17, 1) + FIELD(PLLSAI1CFGR, PLLSAI1PEN, 16, 1) + FIELD(PLLSAI1CFGR, PLLSAI1N, 8, 7) +REG32(PLLSAI2CFGR, 0x14) + FIELD(PLLSAI2CFGR, PLLSAI2PDIV, 27, 5) + FIELD(PLLSAI2CFGR, PLLSAI2R, 25, 2) + FIELD(PLLSAI2CFGR, PLLSAI2REN, 24, 1) + FIELD(PLLSAI2CFGR, PLLSAI2Q, 21, 2) + FIELD(PLLSAI2CFGR, PLLSAI2QEN, 20, 1) + FIELD(PLLSAI2CFGR, PLLSAI2P, 17, 1) + FIELD(PLLSAI2CFGR, PLLSAI2PEN, 16, 1) + FIELD(PLLSAI2CFGR, PLLSAI2N, 8, 7) +REG32(CIER, 0x18) + /* HSI48RDYIE: only on STM32L496xx/4A6xx devices */ + FIELD(CIER, LSECSSIE, 9, 1) + FIELD(CIER, PLLSAI2RDYIE, 7, 1) + FIELD(CIER, PLLSAI1RDYIE, 6, 1) + FIELD(CIER, PLLRDYIE, 5, 1) + FIELD(CIER, HSERDYIE, 4, 1) + FIELD(CIER, HSIRDYIE, 3, 1) + FIELD(CIER, MSIRDYIE, 2, 1) + FIELD(CIER, LSERDYIE, 1, 1) + FIELD(CIER, LSIRDYIE, 0, 1) +REG32(CIFR, 0x1C) + /* HSI48RDYF: only on STM32L496xx/4A6xx devices */ + FIELD(CIFR, LSECSSF, 9, 1) + FIELD(CIFR, CSSF, 8, 1) + FIELD(CIFR, PLLSAI2RDYF, 7, 1) + FIELD(CIFR, PLLSAI1RDYF, 6, 1) + FIELD(CIFR, PLLRDYF, 5, 1) + FIELD(CIFR, HSERDYF, 4, 1) + FIELD(CIFR, HSIRDYF, 3, 1) + FIELD(CIFR, MSIRDYF, 2, 1) + FIELD(CIFR, LSERDYF, 1, 1) + FIELD(CIFR, LSIRDYF, 0, 1) +REG32(CICR, 0x20) + /* HSI48RDYC: only on STM32L496xx/4A6xx devices */ + FIELD(CICR, LSECSSC, 9, 1) + FIELD(CICR, CSSC, 8, 1) + FIELD(CICR, PLLSAI2RDYC, 7, 1) + FIELD(CICR, PLLSAI1RDYC, 6, 1) + FIELD(CICR, PLLRDYC, 5, 1) + FIELD(CICR, HSERDYC, 4, 1) + FIELD(CICR, HSIRDYC, 3, 1) + FIELD(CICR, MSIRDYC, 2, 1) + FIELD(CICR, LSERDYC, 1, 1) + FIELD(CICR, LSIRDYC, 0, 1) +REG32(AHB1RSTR, 0x28) +REG32(AHB2RSTR, 0x2C) +REG32(AHB3RSTR, 0x30) +REG32(APB1RSTR1, 0x38) +REG32(APB1RSTR2, 0x3C) +REG32(APB2RSTR, 0x40) +REG32(AHB1ENR, 0x48) + /* DMA2DEN: reserved for STM32L475xx */ + FIELD(AHB1ENR, TSCEN, 16, 1) + FIELD(AHB1ENR, CRCEN, 12, 1) + FIELD(AHB1ENR, FLASHEN, 8, 1) + FIELD(AHB1ENR, DMA2EN, 1, 1) + FIELD(AHB1ENR, DMA1EN, 0, 1) +REG32(AHB2ENR, 0x4C) + FIELD(AHB2ENR, RNGEN, 18, 1) + /* HASHEN: reserved for STM32L475xx */ + FIELD(AHB2ENR, AESEN, 16, 1) + /* DCMIEN: reserved for STM32L475xx */ + FIELD(AHB2ENR, ADCEN, 13, 1) + FIELD(AHB2ENR, OTGFSEN, 12, 1) + /* GPIOIEN: reserved for STM32L475xx */ + FIELD(AHB2ENR, GPIOHEN, 7, 1) + FIELD(AHB2ENR, GPIOGEN, 6, 1) + FIELD(AHB2ENR, GPIOFEN, 5, 1) + FIELD(AHB2ENR, GPIOEEN, 4, 1) + FIELD(AHB2ENR, GPIODEN, 3, 1) + FIELD(AHB2ENR, GPIOCEN, 2, 1) + FIELD(AHB2ENR, GPIOBEN, 1, 1) + FIELD(AHB2ENR, GPIOAEN, 0, 1) +REG32(AHB3ENR, 0x50) + FIELD(AHB3ENR, QSPIEN, 8, 1) + FIELD(AHB3ENR, FMCEN, 0, 1) +REG32(APB1ENR1, 0x58) + FIELD(APB1ENR1, LPTIM1EN, 31, 1) + FIELD(APB1ENR1, OPAMPEN, 30, 1) + FIELD(APB1ENR1, DAC1EN, 29, 1) + FIELD(APB1ENR1, PWREN, 28, 1) + FIELD(APB1ENR1, CAN2EN, 26, 1) + FIELD(APB1ENR1, CAN1EN, 25, 1) + /* CRSEN: reserved for STM32L475xx */ + FIELD(APB1ENR1, I2C3EN, 23, 1) + FIELD(APB1ENR1, I2C2EN, 22, 1) + FIELD(APB1ENR1, I2C1EN, 21, 1) + FIELD(APB1ENR1, UART5EN, 20, 1) + FIELD(APB1ENR1, UART4EN, 19, 1) + FIELD(APB1ENR1, USART3EN, 18, 1) + FIELD(APB1ENR1, USART2EN, 17, 1) + FIELD(APB1ENR1, SPI3EN, 15, 1) + FIELD(APB1ENR1, SPI2EN, 14, 1) + FIELD(APB1ENR1, WWDGEN, 11, 1) + /* RTCAPBEN: reserved for STM32L475xx */ + FIELD(APB1ENR1, LCDEN, 9, 1) + FIELD(APB1ENR1, TIM7EN, 5, 1) + FIELD(APB1ENR1, TIM6EN, 4, 1) + FIELD(APB1ENR1, TIM5EN, 3, 1) + FIELD(APB1ENR1, TIM4EN, 2, 1) + FIELD(APB1ENR1, TIM3EN, 1, 1) + FIELD(APB1ENR1, TIM2EN, 0, 1) +REG32(APB1ENR2, 0x5C) + FIELD(APB1ENR2, LPTIM2EN, 5, 1) + FIELD(APB1ENR2, SWPMI1EN, 2, 1) + /* I2C4EN: reserved for STM32L475xx */ + FIELD(APB1ENR2, LPUART1EN, 0, 1) +REG32(APB2ENR, 0x60) + FIELD(APB2ENR, DFSDM1EN, 24, 1) + FIELD(APB2ENR, SAI2EN, 22, 1) + FIELD(APB2ENR, SAI1EN, 21, 1) + FIELD(APB2ENR, TIM17EN, 18, 1) + FIELD(APB2ENR, TIM16EN, 17, 1) + FIELD(APB2ENR, TIM15EN, 16, 1) + FIELD(APB2ENR, USART1EN, 14, 1) + FIELD(APB2ENR, TIM8EN, 13, 1) + FIELD(APB2ENR, SPI1EN, 12, 1) + FIELD(APB2ENR, TIM1EN, 11, 1) + FIELD(APB2ENR, SDMMC1EN, 10, 1) + FIELD(APB2ENR, FWEN, 7, 1) + FIELD(APB2ENR, SYSCFGEN, 0, 1) +REG32(AHB1SMENR, 0x68) +REG32(AHB2SMENR, 0x6C) +REG32(AHB3SMENR, 0x70) +REG32(APB1SMENR1, 0x78) +REG32(APB1SMENR2, 0x7C) +REG32(APB2SMENR, 0x80) +REG32(CCIPR, 0x88) + FIELD(CCIPR, DFSDM1SEL, 31, 1) + FIELD(CCIPR, SWPMI1SEL, 30, 1) + FIELD(CCIPR, ADCSEL, 28, 2) + FIELD(CCIPR, CLK48SEL, 26, 2) + FIELD(CCIPR, SAI2SEL, 24, 2) + FIELD(CCIPR, SAI1SEL, 22, 2) + FIELD(CCIPR, LPTIM2SEL, 20, 2) + FIELD(CCIPR, LPTIM1SEL, 18, 2) + FIELD(CCIPR, I2C3SEL, 16, 2) + FIELD(CCIPR, I2C2SEL, 14, 2) + FIELD(CCIPR, I2C1SEL, 12, 2) + FIELD(CCIPR, LPUART1SEL, 10, 2) + FIELD(CCIPR, UART5SEL, 8, 2) + FIELD(CCIPR, UART4SEL, 6, 2) + FIELD(CCIPR, USART3SEL, 4, 2) + FIELD(CCIPR, USART2SEL, 2, 2) + FIELD(CCIPR, USART1SEL, 0, 2) +REG32(BDCR, 0x90) + FIELD(BDCR, LSCOSEL, 25, 1) + FIELD(BDCR, LSCOEN, 24, 1) + FIELD(BDCR, BDRST, 16, 1) + FIELD(BDCR, RTCEN, 15, 1) + FIELD(BDCR, RTCSEL, 8, 2) + FIELD(BDCR, LSECSSD, 6, 1) + FIELD(BDCR, LSECSSON, 5, 1) + FIELD(BDCR, LSEDRV, 3, 2) + FIELD(BDCR, LSEBYP, 2, 1) + FIELD(BDCR, LSERDY, 1, 1) + FIELD(BDCR, LSEON, 0, 1) +REG32(CSR, 0x94) + FIELD(CSR, LPWRRSTF, 31, 1) + FIELD(CSR, WWDGRSTF, 30, 1) + FIELD(CSR, IWWGRSTF, 29, 1) + FIELD(CSR, SFTRSTF, 28, 1) + FIELD(CSR, BORRSTF, 27, 1) + FIELD(CSR, PINRSTF, 26, 1) + FIELD(CSR, OBLRSTF, 25, 1) + FIELD(CSR, FWRSTF, 24, 1) + FIELD(CSR, RMVF, 23, 1) + FIELD(CSR, MSISRANGE, 8, 4) + FIELD(CSR, LSIRDY, 1, 1) + FIELD(CSR, LSION, 0, 1) +/* CRRCR and CCIPR2 registers are present on L496/L4A6 devices only. */ + +/* Read Only masks to prevent writes in unauthorized bits */ +#define CR_READ_ONLY_MASK (R_CR_PLLSAI2RDY_MASK | \ + R_CR_PLLSAI1RDY_MASK | \ + R_CR_PLLRDY_MASK | \ + R_CR_HSERDY_MASK | \ + R_CR_HSIRDY_MASK | \ + R_CR_MSIRDY_MASK) +#define CR_READ_SET_MASK (R_CR_CSSON_MASK | R_CR_MSIRGSEL_MASK) +#define ICSCR_READ_ONLY_MASK (R_ICSCR_HSICAL_MASK | R_ICSCR_MSICAL_MASK) +#define CFGR_READ_ONLY_MASK (R_CFGR_SWS_MASK) +#define CIFR_READ_ONLY_MASK (R_CIFR_LSECSSF_MASK | \ + R_CIFR_CSSF_MASK | \ + R_CIFR_PLLSAI2RDYF_MASK | \ + R_CIFR_PLLSAI1RDYF_MASK | \ + R_CIFR_PLLRDYF_MASK | \ + R_CIFR_HSERDYF_MASK | \ + R_CIFR_HSIRDYF_MASK | \ + R_CIFR_MSIRDYF_MASK | \ + R_CIFR_LSERDYF_MASK | \ + R_CIFR_LSIRDYF_MASK) +#define CIFR_IRQ_MASK CIFR_READ_ONLY_MASK +#define APB2ENR_READ_SET_MASK (R_APB2ENR_FWEN_MASK) +#define BDCR_READ_ONLY_MASK (R_BDCR_LSECSSD_MASK | R_BDCR_LSERDY_MASK) +#define CSR_READ_ONLY_MASK (R_CSR_LPWRRSTF_MASK | \ + R_CSR_WWDGRSTF_MASK | \ + R_CSR_IWWGRSTF_MASK | \ + R_CSR_SFTRSTF_MASK | \ + R_CSR_BORRSTF_MASK | \ + R_CSR_PINRSTF_MASK | \ + R_CSR_OBLRSTF_MASK | \ + R_CSR_FWRSTF_MASK | \ + R_CSR_LSIRDY_MASK) + +#endif /* HW_STM32L4X5_RCC_INTERNALS_H */ |