From e3fae0984dab4f1044ea3ffc1aa41b2df12370b2 Mon Sep 17 00:00:00 2001 From: Marti Bolivar Date: Sat, 12 Mar 2011 23:28:53 -0500 Subject: RCC refactor, bugfixes --- libmaple/adc.c | 4 +- libmaple/adc.h | 6 +- libmaple/bkp.c | 4 +- libmaple/dac.c | 4 + libmaple/dac.h | 4 + libmaple/exti.c | 18 +- libmaple/gpio.c | 2 +- libmaple/rcc.c | 200 ++++++++++++--------- libmaple/rcc.h | 541 ++++++++++++++++++++++++++++++++++++++++++++------------ 9 files changed, 573 insertions(+), 210 deletions(-) (limited to 'libmaple') diff --git a/libmaple/adc.c b/libmaple/adc.c index 9626a40..3d38596 100644 --- a/libmaple/adc.c +++ b/libmaple/adc.c @@ -126,8 +126,8 @@ void adc_set_sample_rate(const adc_dev *dev, adc_smp_rate smp_rate) { * @param dev adc device */ static void adc_calibrate(const adc_dev *dev) { - __io uint32 *rstcal_bit = bb_peripv(&(dev->regs->CR2), 3); - __io uint32 *cal_bit = bb_peripv(&(dev->regs->CR2), 2); + __io uint32 *rstcal_bit = bb_perip(&(dev->regs->CR2), 3); + __io uint32 *cal_bit = bb_perip(&(dev->regs->CR2), 2); *rstcal_bit = 1; while (*rstcal_bit) diff --git a/libmaple/adc.h b/libmaple/adc.h index 4811dbc..53ef032 100644 --- a/libmaple/adc.h +++ b/libmaple/adc.h @@ -175,7 +175,7 @@ static inline uint32 adc_read(const adc_dev *dev, uint8 channel) { * @param enable If 1, conversion on external events is enabled, 0 to disable */ static inline void adc_set_exttrig(const adc_dev *dev, uint8 enable) { - *bb_peripv(&dev->regs->CR2, 20) = !!enable; + *bb_perip(&dev->regs->CR2, 20) = !!enable; } /** @@ -183,7 +183,7 @@ static inline void adc_set_exttrig(const adc_dev *dev, uint8 enable) { * @param dev ADC device to enable */ static inline void adc_enable(const adc_dev *dev) { - *bb_peripv(&dev->regs->CR2, 0) = 1; + *bb_perip(&dev->regs->CR2, 0) = 1; } /** @@ -191,7 +191,7 @@ static inline void adc_enable(const adc_dev *dev) { * @param dev ADC device to disable */ static inline void adc_disable(const adc_dev *dev) { - *bb_peripv(&dev->regs->CR2, 0) = 0; + *bb_perip(&dev->regs->CR2, 0) = 0; } /** diff --git a/libmaple/bkp.c b/libmaple/bkp.c index b152069..aaccb1f 100644 --- a/libmaple/bkp.c +++ b/libmaple/bkp.c @@ -57,14 +57,14 @@ void bkp_init(void) { * @see bkp_init() */ void bkp_enable_writes(void) { - *bb_peripv(&PWR_BASE->CR, PWR_CR_DBP) = 1; + *bb_perip(&PWR_BASE->CR, PWR_CR_DBP) = 1; } /** * Disable write access to the backup registers. */ void bkp_disable_writes(void) { - *bb_peripv(&PWR_BASE->CR, PWR_CR_DBP) = 0; + *bb_perip(&PWR_BASE->CR, PWR_CR_DBP) = 0; } /** diff --git a/libmaple/dac.c b/libmaple/dac.c index ef3a9f9..f0bdbcd 100644 --- a/libmaple/dac.c +++ b/libmaple/dac.c @@ -26,6 +26,8 @@ #include "gpio.h" #include "dac.h" +#if defined(STM32_HIGH_DENSITY) || defined(STM32_XL_DENSITY) + /** * @brief DAC peripheral routines. */ @@ -108,3 +110,5 @@ void dac_disable_channel(uint8 channel) { break; } } + +#endif diff --git a/libmaple/dac.h b/libmaple/dac.h index c897bb2..ee8a4e7 100644 --- a/libmaple/dac.h +++ b/libmaple/dac.h @@ -32,6 +32,8 @@ #ifndef _DAC_H_ #define _DAC_H_ +#if defined(STM32_HIGH_DENSITY) || defined(STM32_XL_DENSITY) + #include "rcc.h" #ifdef __cplusplus @@ -149,4 +151,6 @@ void dac_disable_channel(uint8 channel); } // extern "C" #endif +#endif /* STM32_HIGH_DENSITY, STM32_XL_DENSITY */ + #endif diff --git a/libmaple/exti.c b/libmaple/exti.c index 8177e1e..7f56712 100644 --- a/libmaple/exti.c +++ b/libmaple/exti.c @@ -98,14 +98,14 @@ void exti_attach_interrupt(afio_exti_num num, /* Set trigger mode */ switch (mode) { case EXTI_RISING: - *bb_peripv(&EXTI_BASE->RTSR, num) = 1; + *bb_perip(&EXTI_BASE->RTSR, num) = 1; break; case EXTI_FALLING: - *bb_peripv(&EXTI_BASE->FTSR, num) = 1; + *bb_perip(&EXTI_BASE->FTSR, num) = 1; break; case EXTI_RISING_FALLING: - *bb_peripv(&EXTI_BASE->RTSR, num) = 1; - *bb_peripv(&EXTI_BASE->FTSR, num) = 1; + *bb_perip(&EXTI_BASE->RTSR, num) = 1; + *bb_perip(&EXTI_BASE->FTSR, num) = 1; break; } @@ -113,7 +113,7 @@ void exti_attach_interrupt(afio_exti_num num, afio_exti_select(num, port); /* Unmask external interrupt request */ - *bb_peripv(&EXTI_BASE->IMR, num) = 1; + *bb_perip(&EXTI_BASE->IMR, num) = 1; /* Enable the interrupt line */ enable_irq(num); @@ -126,11 +126,11 @@ void exti_attach_interrupt(afio_exti_num num, */ void exti_detach_interrupt(afio_exti_num num) { /* First, mask the interrupt request */ - *bb_peripv(&EXTI_BASE->IMR, num) = 0; + *bb_perip(&EXTI_BASE->IMR, num) = 0; /* Then, clear the trigger selection registers */ - *bb_peripv(&EXTI_BASE->FTSR, num) = 0; - *bb_peripv(&EXTI_BASE->RTSR, num) = 0; + *bb_perip(&EXTI_BASE->FTSR, num) = 0; + *bb_perip(&EXTI_BASE->RTSR, num) = 0; /* Next, disable the IRQ, unless it's multiplexed and there are * other active external interrupts on the same IRQ line */ @@ -210,7 +210,7 @@ void __irq_exti15_10(void) { */ static inline void clear_pending(uint32 exti_num) { - *bb_peripv(&EXTI_BASE->PR, exti_num) = 1; + *bb_perip(&EXTI_BASE->PR, exti_num) = 1; /* If the pending bit is cleared as the last instruction in an ISR, * it won't actually be cleared in time and the ISR will fire again. * Insert a 2-cycle buffer to allow it to take effect. */ diff --git a/libmaple/gpio.c b/libmaple/gpio.c index b08be12..90be033 100644 --- a/libmaple/gpio.c +++ b/libmaple/gpio.c @@ -61,7 +61,7 @@ static gpio_dev gpiod = { /** GPIO port D device. */ gpio_dev *GPIOD = &gpiod; -#ifdef STM32_HIGH_ +#ifdef STM32_HIGH_DENSITY static gpio_dev gpioe = { .regs = GPIOE_BASE, .clk_id = RCC_GPIOE diff --git a/libmaple/rcc.c b/libmaple/rcc.c index 2841af3..e49382c 100644 --- a/libmaple/rcc.c +++ b/libmaple/rcc.c @@ -23,97 +23,115 @@ *****************************************************************************/ /** - * @brief Implements pretty much only the basic clock setup on the - * stm32, clock enable/disable and peripheral reset commands. + * @file rcc.c + * @brief Clock setup, peripheral enable and reset routines. */ #include "libmaple.h" #include "flash.h" #include "rcc.h" +#include "bitband.h" -enum { +typedef enum clock_domain { APB1, APB2, AHB -}; +} clock_domain; struct rcc_dev_info { - const uint8 clk_domain; + const clock_domain clk_domain; const uint8 line_num; }; /* device descriptor tables */ -static const struct rcc_dev_info rcc_dev_table[] = { - [RCC_GPIOA] = { .clk_domain = APB2, .line_num = 2 }, - [RCC_GPIOB] = { .clk_domain = APB2, .line_num = 3 }, - [RCC_GPIOC] = { .clk_domain = APB2, .line_num = 4 }, - [RCC_GPIOD] = { .clk_domain = APB2, .line_num = 5 }, - [RCC_GPIOE] = { .clk_domain = APB2, .line_num = 6 }, // High-density only - [RCC_GPIOF] = { .clk_domain = APB2, .line_num = 7 }, // High-density only - [RCC_GPIOG] = { .clk_domain = APB2, .line_num = 8 }, // High-density only - [RCC_AFIO] = { .clk_domain = APB2, .line_num = 0 }, - [RCC_ADC1] = { .clk_domain = APB2, .line_num = 9 }, - [RCC_ADC2] = { .clk_domain = APB2, .line_num = 10 }, - [RCC_ADC3] = { .clk_domain = APB2, .line_num = 15 }, - [RCC_USART1] = { .clk_domain = APB2, .line_num = 14 }, - [RCC_USART2] = { .clk_domain = APB1, .line_num = 17 }, - [RCC_USART3] = { .clk_domain = APB1, .line_num = 18 }, - [RCC_UART4] = { .clk_domain = APB1, .line_num = 19 }, // High-density only - [RCC_UART5] = { .clk_domain = APB1, .line_num = 20 }, // High-density only - [RCC_TIMER1] = { .clk_domain = APB2, .line_num = 11 }, - [RCC_TIMER2] = { .clk_domain = APB1, .line_num = 0 }, - [RCC_TIMER3] = { .clk_domain = APB1, .line_num = 1 }, - [RCC_TIMER4] = { .clk_domain = APB1, .line_num = 2 }, - [RCC_TIMER5] = { .clk_domain = APB1, .line_num = 3 }, // High-density only - [RCC_TIMER6] = { .clk_domain = APB1, .line_num = 4 }, // High-density only - [RCC_TIMER7] = { .clk_domain = APB1, .line_num = 5 }, // High-density only - [RCC_TIMER8] = { .clk_domain = APB2, .line_num = 13 }, // High-density only - [RCC_SPI1] = { .clk_domain = APB2, .line_num = 12 }, - [RCC_SPI2] = { .clk_domain = APB1, .line_num = 14 }, - [RCC_FSMC] = { .clk_domain = AHB, .line_num = 8 }, // High-density only - [RCC_DAC] = { .clk_domain = APB1, .line_num = 29 }, // High-density only - [RCC_DMA1] = { .clk_domain = AHB, .line_num = 0 }, - [RCC_DMA2] = { .clk_domain = AHB, .line_num = 1 }, // High-density only - [RCC_PWR] = { .clk_domain = APB1, .line_num = 28}, - [RCC_BKP] = { .clk_domain = APB1, .line_num = 27} +static const __attr_flash struct rcc_dev_info rcc_dev_table[] = { + [RCC_SRAM] = { .clk_domain = AHB, .line_num = 2 }, + [RCC_GPIOA] = { .clk_domain = APB2, .line_num = 2 }, + [RCC_GPIOB] = { .clk_domain = APB2, .line_num = 3 }, + [RCC_GPIOC] = { .clk_domain = APB2, .line_num = 4 }, + [RCC_GPIOD] = { .clk_domain = APB2, .line_num = 5 }, + [RCC_AFIO] = { .clk_domain = APB2, .line_num = 0 }, + [RCC_ADC1] = { .clk_domain = APB2, .line_num = 9 }, + [RCC_ADC2] = { .clk_domain = APB2, .line_num = 10 }, + [RCC_USART1] = { .clk_domain = APB2, .line_num = 14 }, + [RCC_USART2] = { .clk_domain = APB1, .line_num = 17 }, + [RCC_USART3] = { .clk_domain = APB1, .line_num = 18 }, + [RCC_TIMER1] = { .clk_domain = APB2, .line_num = 11 }, + [RCC_TIMER2] = { .clk_domain = APB1, .line_num = 0 }, + [RCC_TIMER3] = { .clk_domain = APB1, .line_num = 1 }, + [RCC_TIMER4] = { .clk_domain = APB1, .line_num = 2 }, + [RCC_SPI1] = { .clk_domain = APB2, .line_num = 12 }, + [RCC_SPI2] = { .clk_domain = APB1, .line_num = 14 }, + [RCC_DMA1] = { .clk_domain = AHB, .line_num = 0 }, + [RCC_PWR] = { .clk_domain = APB1, .line_num = 28 }, + [RCC_BKP] = { .clk_domain = APB1, .line_num = 27 }, + [RCC_CAN] = { .clk_domain = APB1, .line_num = 25 }, + [RCC_USB] = { .clk_domain = APB1, .line_num = 23 }, + [RCC_I2C1] = { .clk_domain = APB1, .line_num = 22 }, + [RCC_I2C2] = { .clk_domain = APB1, .line_num = 21 }, + [RCC_CRC] = { .clk_domain = AHB, .line_num = 6 }, + [RCC_WWDG] = { .clk_domain = APB2, .line_num = 11 }, + [RCC_FLITF] = { .clk_domain = AHB, .line_num = 4 }, +#if defined(STM32_HIGH_DENSITY) || defined(STM32_XL_DENSITY) + [RCC_SDIO] = { .clk_domain = AHB, .line_num = 10 }, + [RCC_FSMC] = { .clk_domain = AHB, .line_num = 8 }, + [RCC_GPIOE] = { .clk_domain = APB2, .line_num = 6 }, + [RCC_GPIOF] = { .clk_domain = APB2, .line_num = 7 }, + [RCC_GPIOG] = { .clk_domain = APB2, .line_num = 8 }, + [RCC_ADC3] = { .clk_domain = APB2, .line_num = 15 }, + [RCC_UART4] = { .clk_domain = APB1, .line_num = 19 }, + [RCC_UART5] = { .clk_domain = APB1, .line_num = 20 }, + [RCC_TIMER5] = { .clk_domain = APB1, .line_num = 3 }, + [RCC_TIMER6] = { .clk_domain = APB1, .line_num = 4 }, + [RCC_TIMER7] = { .clk_domain = APB1, .line_num = 5 }, + [RCC_TIMER8] = { .clk_domain = APB2, .line_num = 13 }, + [RCC_DAC] = { .clk_domain = APB1, .line_num = 29 }, + [RCC_DMA2] = { .clk_domain = AHB, .line_num = 1 }, + [RCC_SPI3] = { .clk_domain = APB1, .line_num = 15 }, +#endif +#ifdef STM32_XL_DENSITY + [RCC_TIMER9] = { .clk_domain = APB2, .line_num = 19 }, + [RCC_TIMER10] = { .clk_domain = APB2, .line_num = 20 }, + [RCC_TIMER11] = { .clk_domain = APB2, .line_num = 21 }, + [RCC_TIMER12] = { .clk_domain = APB1, .line_num = 6 }, + [RCC_TIMER13] = { .clk_domain = APB1, .line_num = 7 }, + [RCC_TIMER14] = { .clk_domain = APB1, .line_num = 8 }, +#endif }; /** * @brief Initialize the clock control system. Initializes the system * clock source to use the PLL driven by an external oscillator * @param sysclk_src system clock source, must be PLL - * @param pll_src pll clock source, must be HSE + * @param pll_src pll clock source, must be RCC_CFGR_PLLSRC_HSE * @param pll_mul pll multiplier */ void rcc_clk_init(uint32 sysclk_src, uint32 pll_src, uint32 pll_mul) { + uint32 cfgr; + /* Assume that we're going to clock the chip off the PLL, fed by * the HSE */ ASSERT(sysclk_src == RCC_CLKSRC_PLL && - pll_src == RCC_PLLSRC_HSE); - - uint32 cfgr = 0; - uint32 cr = RCC_READ_CR(); + pll_src == RCC_CFGR_PLLSRC_HSE); - cfgr = (pll_src | pll_mul); - RCC_WRITE_CFGR(cfgr); + RCC_BASE->CFGR = pll_src | pll_mul; - /* Turn on the HSE */ - cr |= RCC_CR_HSEON; - RCC_WRITE_CR(cr); - while (!(RCC_READ_CR() & RCC_CR_HSERDY)) + /* Turn on the HSE */ + *bb_perip(&RCC_BASE->CR, RCC_CR_HSEON_BIT) = 1; + while (!(*bb_perip(&RCC_BASE->CR, RCC_CR_HSERDY_BIT))) ; - /* Now the PLL */ - cr |= RCC_CR_PLLON; - RCC_WRITE_CR(cr); - while (!(RCC_READ_CR() & RCC_CR_PLLRDY)) + /* Now the PLL */ + *bb_perip(&RCC_BASE->CR, RCC_CR_PLLON_BIT) = 1; + while (!(*bb_perip(&RCC_BASE->CR, RCC_CR_PLLRDY_BIT))) ; /* Finally, let's switch over to the PLL */ + cfgr = RCC_BASE->CFGR; cfgr &= ~RCC_CFGR_SW; cfgr |= RCC_CFGR_SW_PLL; - RCC_WRITE_CFGR(cfgr); - while ((RCC_READ_CFGR() & RCC_CFGR_SWS) != RCC_CFGR_SWS_PLL) + RCC_BASE->CFGR = cfgr; + while ((RCC_BASE->CFGR & RCC_CFGR_SWS) != RCC_CFGR_SWS_PLL) ; } @@ -121,16 +139,23 @@ void rcc_clk_init(uint32 sysclk_src, uint32 pll_src, uint32 pll_mul) { * @brief Turn on the clock line on a device * @param device Clock ID of the device to turn on. */ -void rcc_clk_enable(rcc_clk_id device) { - static const uint32 enable_regs[] = { - [APB1] = RCC_APB1ENR, - [APB2] = RCC_APB2ENR, - [AHB] = RCC_AHBENR, - }; - - uint8 clk_domain = rcc_dev_table[device].clk_domain; - - __set_bits(enable_regs[clk_domain], BIT(rcc_dev_table[device].line_num)); +void rcc_clk_enable(rcc_clk_id id) { + uint8 lnum = rcc_dev_table[id].line_num; + __io uint32 *enr; + + switch(rcc_dev_table[id].clk_domain) { + case APB1: + enr = &RCC_BASE->APB1ENR; + break; + case APB2: + enr = &RCC_BASE->APB2ENR; + break; + case AHB: + enr = &RCC_BASE->AHBENR; + break; + } + + *bb_perip(enr, lnum) = 1; } /** @@ -138,7 +163,7 @@ void rcc_clk_enable(rcc_clk_id device) { * @param prescaler prescaler to set * @param divider prescaler divider */ -void rcc_set_prescaler(uint32 prescaler, uint32 divider) { +void rcc_set_prescaler(rcc_prescaler prescaler, uint32 divider) { static const uint32 masks[] = { [RCC_PRESCALER_AHB] = RCC_CFGR_HPRE, [RCC_PRESCALER_APB1] = RCC_CFGR_PPRE1, @@ -146,26 +171,39 @@ void rcc_set_prescaler(uint32 prescaler, uint32 divider) { [RCC_PRESCALER_USB] = RCC_CFGR_USBPRE, [RCC_PRESCALER_ADC] = RCC_CFGR_ADCPRE, }; + uint32 cfgr; - uint32 cfgr = RCC_READ_CFGR(); - + cfgr = RCC_BASE->CFGR; cfgr &= ~masks[prescaler]; cfgr |= divider; - RCC_WRITE_CFGR(cfgr); + RCC_BASE->CFGR = cfgr; } /** - * @brief reset a device - * @param device Clock ID of the device to reset. + * @brief Reset a device + * @param device Clock ID of the device to reset; the device must be + * on APB1 or APB2. */ -void rcc_reset_dev(rcc_clk_id device) { - static const uint32 reset_regs[] = { - [APB1] = RCC_APB1RSTR, - [APB2] = RCC_APB2RSTR, - }; - - uint8 clk_domain = rcc_dev_table[device].clk_domain; - - __set_bits(reset_regs[clk_domain], BIT(rcc_dev_table[device].line_num)); - __clear_bits(reset_regs[clk_domain], BIT(rcc_dev_table[device].line_num)); +void rcc_reset_dev(rcc_clk_id id) { + uint8 lnum = rcc_dev_table[id].line_num; + __io uint32 *rstr = 0; + + switch (rcc_dev_table[id].clk_domain) { + case APB1: + rstr = &RCC_BASE->APB1RSTR; + break; + case APB2: + rstr = &RCC_BASE->APB2RSTR; + break; + case AHB: + ASSERT(0); + break; + } + + if (rstr == 0) { + return; + } + + *bb_perip(rstr, lnum) = 1; + *bb_perip(rstr, lnum) = 0; } diff --git a/libmaple/rcc.h b/libmaple/rcc.h index 8697e01..83b34ed 100644 --- a/libmaple/rcc.h +++ b/libmaple/rcc.h @@ -24,7 +24,7 @@ /** * @file rcc.h - * @brief reset and clock control definitions and prototypes + * @brief Reset and clock control (RCC) definitions and prototypes */ #include "libmaple_types.h" @@ -36,78 +36,451 @@ extern "C"{ #endif -/* registers */ -#define RCC_BASE 0x40021000 -#define RCC_CR (RCC_BASE + 0x0) -#define RCC_CFGR (RCC_BASE + 0x4) -#define RCC_CIR (RCC_BASE + 0x8) -#define RCC_APB2RSTR (RCC_BASE + 0xC) -#define RCC_APB1RSTR (RCC_BASE + 0x10) -#define RCC_AHBENR (RCC_BASE + 0x14) -#define RCC_APB2ENR (RCC_BASE + 0x18) -#define RCC_APB1ENR (RCC_BASE + 0x1C) -#define RCC_BDCR (RCC_BASE + 0x20) -#define RCC_CSR (RCC_BASE + 0x24) -#define RCC_AHBSTR (RCC_BASE + 0x28) -#define RCC_CFGR2 (RCC_BASE + 0x2C) - -#define RCC_CFGR_USBPRE (0x1 << 22) -#define RCC_CFGR_ADCPRE (0x3 << 14) -#define RCC_CFGR_PPRE1 (0x7 << 8) -#define RCC_CFGR_PPRE2 (0x7 << 11) -#define RCC_CFGR_HPRE (0xF << 4) -#define RCC_CFGR_PLLSRC (0x1 << 16) - -#define RCC_CFGR_SWS (0x3 << 2) -#define RCC_CFGR_SWS_PLL (0x2 << 2) -#define RCC_CFGR_SWS_HSE (0x1 << 2) - -#define RCC_CFGR_SW (0x3 << 0) -#define RCC_CFGR_SW_PLL (0x2 << 0) -#define RCC_CFGR_SW_HSE (0x1 << 0) - -/* CR status bits */ -#define RCC_CR_HSEON (0x1 << 16) -#define RCC_CR_HSERDY (0x1 << 17) -#define RCC_CR_PLLON (0x1 << 24) -#define RCC_CR_PLLRDY (0x1 << 25) - -#define RCC_WRITE_CFGR(val) __write(RCC_CFGR, val) -#define RCC_READ_CFGR() __read(RCC_CFGR) - -#define RCC_WRITE_CR(val) __write(RCC_CR, val) -#define RCC_READ_CR() __read(RCC_CR) - -/* sysclk source */ +/** RCC register map type */ +typedef struct rcc_reg_map { + __io uint32 CR; /**< Clock control register */ + __io uint32 CFGR; /**< Clock configuration register */ + __io uint32 CIR; /**< Clock interrupt register */ + __io uint32 APB2RSTR; /**< APB2 peripheral reset register */ + __io uint32 APB1RSTR; /**< APB1 peripheral reset register */ + __io uint32 AHBENR; /**< AHB peripheral clock enable register */ + __io uint32 APB2ENR; /**< APB2 peripheral clock enable register */ + __io uint32 APB1ENR; /**< APB1 peripheral clock enable register */ + __io uint32 BDCR; /**< Backup domain control register */ + __io uint32 CSR; /**< Control/status register */ +} rcc_reg_map; + +/* + * RCC register map base address + */ + +#define RCC_BASE ((rcc_reg_map*)0x40021000) + +/* + * RCC register bit definitions + */ + +/* Clock control register */ + +#define RCC_CR_PLLRDY_BIT 25 +#define RCC_CR_PLLON_BIT 24 +#define RCC_CR_CSSON_BIT 19 +#define RCC_CR_HSEBYP_BIT 18 +#define RCC_CR_HSERDY_BIT 17 +#define RCC_CR_HSEON_BIT 16 +#define RCC_CR_HSIRDY_BIT 1 +#define RCC_CR_HSION_BIT 0 + +#define RCC_CR_PLLRDY BIT(RCC_CR_PLLRDY_BIT) +#define RCC_CR_PLLON BIT(RCC_CR_PLLON_BIT) +#define RCC_CR_CSSON BIT(RCC_CR_CSSON_BIT) +#define RCC_CR_HSEBYP BIT(RCC_CR_HSEBYP_BIT) +#define RCC_CR_HSERDY BIT(RCC_CR_HSERDY_BIT) +#define RCC_CR_HSEON BIT(RCC_CR_HSEON_BIT) +#define RCC_CR_HSICAL (0xFF << 8) +#define RCC_CR_HSITRIM (0x1F << 3) +#define RCC_CR_HSIRDY BIT(RCC_CR_HSIRDY_BIT) +#define RCC_CR_HSION BIT(RCC_CR_HSION_BIT) + +/* Clock configuration register */ + +#define RCC_CFGR_USBPRE_BIT 22 +#define RCC_CFGR_PLLXTPRE_BIT 17 +#define RCC_CFGR_PLLSRC_BIT 16 + +#define RCC_CFGR_MCO (0x7 << 24) +#define RCC_CFGR_USBPRE BIT(RCC_CFGR_USBPRE_BIT) +#define RCC_CFGR_PLLMUL (0xF << 18) +#define RCC_CFGR_PLLMUL_2 (0x0 << 18) +#define RCC_CFGR_PLLMUL_3 (0x1 << 18) +#define RCC_CFGR_PLLMUL_4 (0x2 << 18) +#define RCC_CFGR_PLLMUL_5 (0x3 << 18) +#define RCC_CFGR_PLLMUL_6 (0x4 << 18) +#define RCC_CFGR_PLLMUL_7 (0x5 << 18) +#define RCC_CFGR_PLLMUL_8 (0x6 << 18) +#define RCC_CFGR_PLLMUL_9 (0x7 << 18) +#define RCC_CFGR_PLLMUL_10 (0x8 << 18) +#define RCC_CFGR_PLLMUL_11 (0x9 << 18) +#define RCC_CFGR_PLLMUL_12 (0xA << 18) +#define RCC_CFGR_PLLMUL_13 (0xB << 18) +#define RCC_CFGR_PLLMUL_14 (0xC << 18) +#define RCC_CFGR_PLLMUL_15 (0xD << 18) +#define RCC_CFGR_PLLMUL_16 (0xE << 18) +#define RCC_CFGR_PLLXTPRE BIT(RCC_CFGR_PLLXTPRE_BIT) +#define RCC_CFGR_PLLSRC BIT(RCC_CFGR_PLLSRC_BIT) +#define RCC_CFGR_PLLSRC_HSI_DIV_2 (0 << RCC_CFGR_PLLSRC_BIT) +#define RCC_CFGR_PLLSRC_HSE (1 << RCC_CFGR_PLLSRC_BIT) +#define RCC_CFGR_ADCPRE (0x3 << 14) +#define RCC_CFGR_PPRE2 (0x7 << 11) +#define RCC_CFGR_PPRE1 (0x7 << 8) +#define RCC_CFGR_HPRE (0xF << 4) +#define RCC_CFGR_SWS (0x3 << 2) +#define RCC_CFGR_SWS_PLL (0x2 << 2) +#define RCC_CFGR_SWS_HSE (0x1 << 2) +#define RCC_CFGR_SW (0x3 << 0) +#define RCC_CFGR_SW_PLL (0x2 << 0) +#define RCC_CFGR_SW_HSE (0x1 << 0) + +/* Clock interrupt register */ + +#define RCC_CIR_CSSC_BIT 23 +#define RCC_CIR_PLLRDYC_BIT 20 +#define RCC_CIR_HSERDYC_BIT 19 +#define RCC_CIR_HSIRDYC_BIT 18 +#define RCC_CIR_LSERDYC_BIT 17 +#define RCC_CIR_LSIRDYC_BIT 16 +#define RCC_CIR_PLLRDYIE_BIT 12 +#define RCC_CIR_HSERDYIE_BIT 11 +#define RCC_CIR_HSIRDYIE_BIT 10 +#define RCC_CIR_LSERDYIE_BIT 9 +#define RCC_CIR_LSIRDYIE_BIT 8 +#define RCC_CIR_CSSF_BIT 7 +#define RCC_CIR_PLLRDYF_BIT 4 +#define RCC_CIR_HSERDYF_BIT 3 +#define RCC_CIR_HSIRDYF_BIT 2 +#define RCC_CIR_LSERDYF_BIT 1 +#define RCC_CIR_LSIRDYF_BIT 0 + +#define RCC_CIR_CSSC BIT(RCC_CIR_CSSC_BIT) +#define RCC_CIR_PLLRDYC BIT(RCC_CIR_PLLRDYC_BIT) +#define RCC_CIR_HSERDYC BIT(RCC_CIR_HSERDYC_BIT) +#define RCC_CIR_HSIRDYC BIT(RCC_CIR_HSIRDYC_BIT) +#define RCC_CIR_LSERDYC BIT(RCC_CIR_LSERDYC_BIT) +#define RCC_CIR_LSIRDYC BIT(RCC_CIR_LSIRDYC_BIT) +#define RCC_CIR_PLLRDYIE BIT(RCC_CIR_PLLRDYIE_BIT) +#define RCC_CIR_HSERDYIE BIT(RCC_CIR_HSERDYIE_BIT) +#define RCC_CIR_HSIRDYIE BIT(RCC_CIR_HSIRDYIE_BIT) +#define RCC_CIR_LSERDYIE BIT(RCC_CIR_LSERDYIE_BIT) +#define RCC_CIR_LSIRDYIE BIT(RCC_CIR_LSIRDYIE_BIT) +#define RCC_CIR_CSSF BIT(RCC_CIR_CSSF_BIT) +#define RCC_CIR_PLLRDYF BIT(RCC_CIR_PLLRDYF_BIT) +#define RCC_CIR_HSERDYF BIT(RCC_CIR_HSERDYF_BIT) +#define RCC_CIR_HSIRDYF BIT(RCC_CIR_HSIRDYF_BIT) +#define RCC_CIR_LSERDYF BIT(RCC_CIR_LSERDYF_BIT) +#define RCC_CIR_LSIRDYF BIT(RCC_CIR_LSIRDYF_BIT) + +/* APB2 peripheral reset register */ + +#define RCC_APB2RSTR_TIM11RST_BIT 21 +#define RCC_APB2RSTR_TIM10RST_BIT 20 +#define RCC_APB2RSTR_TIM9RST_BIT 19 +#define RCC_APB2RSTR_ADC3RST_BIT 15 +#define RCC_APB2RSTR_USART1RST_BIT 14 +#define RCC_APB2RSTR_TIM8RST_BIT 13 +#define RCC_APB2RSTR_SPI1RST_BIT 12 +#define RCC_APB2RSTR_TIM1RST_BIT 11 +#define RCC_APB2RSTR_ADC2RST_BIT 10 +#define RCC_APB2RSTR_ADC1RST_BIT 9 +#define RCC_APB2RSTR_IOPGRST_BIT 8 +#define RCC_APB2RSTR_IOPFRST_BIT 7 +#define RCC_APB2RSTR_IOPERST_BIT 6 +#define RCC_APB2RSTR_IOPDRST_BIT 5 +#define RCC_APB2RSTR_IOPCRST_BIT 4 +#define RCC_APB2RSTR_IOPBRST_BIT 3 +#define RCC_APB2RSTR_IOPARST_BIT 2 +#define RCC_APB2RSTR_AFIORST_BIT 0 + +#define RCC_APB2RSTR_TIM11RST BIT(RCC_APB2RSTR_TIM11RST_BIT) +#define RCC_APB2RSTR_TIM10RST BIT(RCC_APB2RSTR_TIM10RST_BIT) +#define RCC_APB2RSTR_TIM9RST BIT(RCC_APB2RSTR_TIM9RST_BIT) +#define RCC_APB2RSTR_ADC3RST BIT(RCC_APB2RSTR_ADC3RST_BIT) +#define RCC_APB2RSTR_USART1RST BIT(RCC_APB2RSTR_USART1RST_BIT) +#define RCC_APB2RSTR_TIM8RST BIT(RCC_APB2RSTR_TIM8RST_BIT) +#define RCC_APB2RSTR_SPI1RST BIT(RCC_APB2RSTR_SPI1RST_BIT) +#define RCC_APB2RSTR_TIM1RST BIT(RCC_APB2RSTR_TIM1RST_BIT) +#define RCC_APB2RSTR_ADC2RST BIT(RCC_APB2RSTR_ADC2RST_BIT) +#define RCC_APB2RSTR_ADC1RST BIT(RCC_APB2RSTR_ADC1RST_BIT) +#define RCC_APB2RSTR_IOPGRST BIT(RCC_APB2RSTR_IOPGRST_BIT) +#define RCC_APB2RSTR_IOPFRST BIT(RCC_APB2RSTR_IOPFRST_BIT) +#define RCC_APB2RSTR_IOPERST BIT(RCC_APB2RSTR_IOPERST_BIT) +#define RCC_APB2RSTR_IOPDRST BIT(RCC_APB2RSTR_IOPDRST_BIT) +#define RCC_APB2RSTR_IOPCRST BIT(RCC_APB2RSTR_IOPCRST_BIT) +#define RCC_APB2RSTR_IOPBRST BIT(RCC_APB2RSTR_IOPBRST_BIT) +#define RCC_APB2RSTR_IOPARST BIT(RCC_APB2RSTR_IOPARST_BIT) +#define RCC_APB2RSTR_AFIORST BIT(RCC_APB2RSTR_AFIORST_BIT) + +/* APB1 peripheral reset register */ + +#define RCC_APB1RSTR_DACRST_BIT 29 +#define RCC_APB1RSTR_PWRRST_BIT 28 +#define RCC_APB1RSTR_BKPRST_BIT 27 +#define RCC_APB1RSTR_CANRST_BIT 25 +#define RCC_APB1RSTR_USBRST_BIT 23 +#define RCC_APB1RSTR_I2C2RST_BIT 22 +#define RCC_APB1RSTR_I2C1RST_BIT 21 +#define RCC_APB1RSTR_UART5RST_BIT 20 +#define RCC_APB1RSTR_UART4RST_BIT 19 +#define RCC_APB1RSTR_UART3RST_BIT 18 +#define RCC_APB1RSTR_UART2RST_BIT 17 +#define RCC_APB1RSTR_SPI3RST_BIT 15 +#define RCC_APB1RSTR_SPI2RST_BIT 14 +#define RCC_APB1RSTR_WWDGRST_BIT 11 +#define RCC_APB1RSTR_TIM14RST_BIT 8 +#define RCC_APB1RSTR_TIM13RST_BIT 7 +#define RCC_APB1RSTR_TIM12RST_BIT 6 +#define RCC_APB1RSTR_TIM7RST_BIT 5 +#define RCC_APB1RSTR_TIM6RST_BIT 4 +#define RCC_APB1RSTR_TIM5RST_BIT 3 +#define RCC_APB1RSTR_TIM4RST_BIT 2 +#define RCC_APB1RSTR_TIM3RST_BIT 1 +#define RCC_APB1RSTR_TIM2RST_BIT 0 + +#define RCC_APB1RSTR_DACRST BIT(RCC_APB1RSTR_DACRST_BIT) +#define RCC_APB1RSTR_PWRRST BIT(RCC_APB1RSTR_PWRRST_BIT) +#define RCC_APB1RSTR_BKPRST BIT(RCC_APB1RSTR_BKPRST_BIT) +#define RCC_APB1RSTR_CANRST BIT(RCC_APB1RSTR_CANRST_BIT) +#define RCC_APB1RSTR_USBRST BIT(RCC_APB1RSTR_USBRST_BIT) +#define RCC_APB1RSTR_I2C2RST BIT(RCC_APB1RSTR_I2C2RST_BIT) +#define RCC_APB1RSTR_I2C1RST BIT(RCC_APB1RSTR_I2C1RST_BIT) +#define RCC_APB1RSTR_UART5RST BIT(RCC_APB1RSTR_UART5RST_BIT) +#define RCC_APB1RSTR_UART4RST BIT(RCC_APB1RSTR_UART4RST_BIT) +#define RCC_APB1RSTR_UART3RST BIT(RCC_APB1RSTR_UART3RST_BIT) +#define RCC_APB1RSTR_UART2RST BIT(RCC_APB1RSTR_UART2RST_BIT) +#define RCC_APB1RSTR_SPI3RST BIT(RCC_APB1RSTR_SPI3RST_BIT) +#define RCC_APB1RSTR_SPI2RST BIT(RCC_APB1RSTR_SPI2RST_BIT) +#define RCC_APB1RSTR_WWDGRST BIT(RCC_APB1RSTR_WWDGRST_BIT) +#define RCC_APB1RSTR_TIM14RST BIT(RCC_APB1RSTR_TIM14RST_BIT) +#define RCC_APB1RSTR_TIM13RST BIT(RCC_APB1RSTR_TIM13RST_BIT) +#define RCC_APB1RSTR_TIM12RST BIT(RCC_APB1RSTR_TIM12RST_BIT) +#define RCC_APB1RSTR_TIM7RST BIT(RCC_APB1RSTR_TIM7RST_BIT) +#define RCC_APB1RSTR_TIM6RST BIT(RCC_APB1RSTR_TIM6RST_BIT) +#define RCC_APB1RSTR_TIM5RST BIT(RCC_APB1RSTR_TIM5RST_BIT) +#define RCC_APB1RSTR_TIM4RST BIT(RCC_APB1RSTR_TIM4RST_BIT) +#define RCC_APB1RSTR_TIM3RST BIT(RCC_APB1RSTR_TIM3RST_BIT) +#define RCC_APB1RSTR_TIM2RST BIT(RCC_APB1RSTR_TIM2RST_BIT) + +/* AHB peripheral clock enable register */ + +#define RCC_AHBENR_SDIOEN_BIT 10 +#define RCC_AHBENR_FSMCEN_BIT 8 +#define RCC_AHBENR_CRCEN_BIT 6 +#define RCC_AHBENR_FLITFEN_BIT 4 +#define RCC_AHBENR_SRAMEN_BIT 2 +#define RCC_AHBENR_DMA2EN_BIT 1 +#define RCC_AHBENR_DMA1EN_BIT 0 + +#define RCC_AHBENR_SDIOEN BIT(RCC_AHBENR_SDIOEN_BIT) +#define RCC_AHBENR_FSMCEN BIT(RCC_AHBENR_FSMCEN_BIT) +#define RCC_AHBENR_CRCEN BIT(RCC_AHBENR_CRCEN_BIT) +#define RCC_AHBENR_FLITFEN BIT(RCC_AHBENR_FLITFEN_BIT) +#define RCC_AHBENR_SRAMEN BIT(RCC_AHBENR_SRAMEN_BIT) +#define RCC_AHBENR_DMA2EN BIT(RCC_AHBENR_DMA2EN_BIT) +#define RCC_AHBENR_DMA1EN BIT(RCC_AHBENR_DMA1EN_BIT) + +/* APB2 peripheral clock enable register */ + +#define RCC_APB2ENR_TIM11EN_BIT 21 +#define RCC_APB2ENR_TIM10EN_BIT 20 +#define RCC_APB2ENR_TIM9EN_BIT 19 +#define RCC_APB2ENR_ADC3EN_BIT 15 +#define RCC_APB2ENR_USART1EN_BIT 14 +#define RCC_APB2ENR_TIM8EN_BIT 13 +#define RCC_APB2ENR_SPI1EN_BIT 12 +#define RCC_APB2ENR_TIM1EN_BIT 11 +#define RCC_APB2ENR_ADC2EN_BIT 10 +#define RCC_APB2ENR_ADC1EN_BIT 9 +#define RCC_APB2ENR_IOPGEN_BIT 8 +#define RCC_APB2ENR_IOPFEN_BIT 7 +#define RCC_APB2ENR_IOPEEN_BIT 6 +#define RCC_APB2ENR_IOPDEN_BIT 5 +#define RCC_APB2ENR_IOPCEN_BIT 4 +#define RCC_APB2ENR_IOPBEN_BIT 3 +#define RCC_APB2ENR_IOPAEN_BIT 2 +#define RCC_APB2ENR_AFIOEN_BIT 0 + +#define RCC_APB2ENR_TIM11EN BIT(RCC_APB2ENR_TIM11EN_BIT) +#define RCC_APB2ENR_TIM10EN BIT(RCC_APB2ENR_TIM10EN_BIT) +#define RCC_APB2ENR_TIM9EN BIT(RCC_APB2ENR_TIM9EN_BIT) +#define RCC_APB2ENR_ADC3EN BIT(RCC_APB2ENR_ADC3EN_BIT) +#define RCC_APB2ENR_USART1EN BIT(RCC_APB2ENR_USART1EN_BIT) +#define RCC_APB2ENR_TIM8EN BIT(RCC_APB2ENR_TIM8EN_BIT) +#define RCC_APB2ENR_SPI1EN BIT(RCC_APB2ENR_SPI1EN_BIT) +#define RCC_APB2ENR_TIM1EN BIT(RCC_APB2ENR_TIM1EN_BIT) +#define RCC_APB2ENR_ADC2EN BIT(RCC_APB2ENR_ADC2EN_BIT) +#define RCC_APB2ENR_ADC1EN BIT(RCC_APB2ENR_ADC1EN_BIT) +#define RCC_APB2ENR_IOPGEN BIT(RCC_APB2ENR_IOPGEN_BIT) +#define RCC_APB2ENR_IOPFEN BIT(RCC_APB2ENR_IOPFEN_BIT) +#define RCC_APB2ENR_IOPEEN BIT(RCC_APB2ENR_IOPEEN_BIT) +#define RCC_APB2ENR_IOPDEN BIT(RCC_APB2ENR_IOPDEN_BIT) +#define RCC_APB2ENR_IOPCEN BIT(RCC_APB2ENR_IOPCEN_BIT) +#define RCC_APB2ENR_IOPBEN BIT(RCC_APB2ENR_IOPBEN_BIT) +#define RCC_APB2ENR_IOPAEN BIT(RCC_APB2ENR_IOPAEN_BIT) +#define RCC_APB2ENR_AFIOEN BIT(RCC_APB2ENR_AFIOEN_BIT) + +/* APB1 peripheral clock enable register */ + +#define RCC_APB1ENR_DACEN_BIT 29 +#define RCC_APB1ENR_BKPEN_BIT 27 +#define RCC_APB1ENR_PWREN_BIT 28 +#define RCC_APB1ENR_CANEN_BIT 25 +#define RCC_APB1ENR_USBEN_BIT 23 +#define RCC_APB1ENR_I2C2EN_BIT 22 +#define RCC_APB1ENR_I2C1EN_BIT 21 +#define RCC_APB1ENR_UART5EN_BIT 20 +#define RCC_APB1ENR_UART4EN_BIT 19 +#define RCC_APB1ENR_UART3EN_BIT 18 +#define RCC_APB1ENR_UART2EN_BIT 17 +#define RCC_APB1ENR_SPI3EN_BIT 15 +#define RCC_APB1ENR_SPI2EN_BIT 14 +#define RCC_APB1ENR_WWDGEN_BIT 11 +#define RCC_APB1ENR_TIM14EN_BIT 8 +#define RCC_APB1ENR_TIM13EN_BIT 7 +#define RCC_APB1ENR_TIM12EN_BIT 6 +#define RCC_APB1ENR_TIM7EN_BIT 5 +#define RCC_APB1ENR_TIM6EN_BIT 4 +#define RCC_APB1ENR_TIM5EN_BIT 3 +#define RCC_APB1ENR_TIM4EN_BIT 2 +#define RCC_APB1ENR_TIM3EN_BIT 1 +#define RCC_APB1ENR_TIM2EN_BIT 0 + +#define RCC_APB1ENR_DACEN BIT(RCC_APB1ENR_DACEN_BIT) +#define RCC_APB1ENR_PWREN BIT(RCC_APB1ENR_PWREN_BIT) +#define RCC_APB1ENR_BKPEN BIT(RCC_APB1ENR_BKPEN_BIT) +#define RCC_APB1ENR_CANEN BIT(RCC_APB1ENR_CANEN_BIT) +#define RCC_APB1ENR_USBEN BIT(RCC_APB1ENR_USBEN_BIT) +#define RCC_APB1ENR_I2C2EN BIT(RCC_APB1ENR_I2C2EN_BIT) +#define RCC_APB1ENR_I2C1EN BIT(RCC_APB1ENR_I2C1EN_BIT) +#define RCC_APB1ENR_UART5EN BIT(RCC_APB1ENR_UART5EN_BIT) +#define RCC_APB1ENR_UART4EN BIT(RCC_APB1ENR_UART4EN_BIT) +#define RCC_APB1ENR_UART3EN BIT(RCC_APB1ENR_UART3EN_BIT) +#define RCC_APB1ENR_UART2EN BIT(RCC_APB1ENR_UART2EN_BIT) +#define RCC_APB1ENR_SPI3EN BIT(RCC_APB1ENR_SPI3EN_BIT) +#define RCC_APB1ENR_SPI2EN BIT(RCC_APB1ENR_SPI2EN_BIT) +#define RCC_APB1ENR_WWDGEN BIT(RCC_APB1ENR_WWDGEN_BIT) +#define RCC_APB1ENR_TIM14EN BIT(RCC_APB1ENR_TIM14EN_BIT) +#define RCC_APB1ENR_TIM13EN BIT(RCC_APB1ENR_TIM13EN_BIT) +#define RCC_APB1ENR_TIM12EN BIT(RCC_APB1ENR_TIM12EN_BIT) +#define RCC_APB1ENR_TIM7EN BIT(RCC_APB1ENR_TIM7EN_BIT) +#define RCC_APB1ENR_TIM6EN BIT(RCC_APB1ENR_TIM6EN_BIT) +#define RCC_APB1ENR_TIM5EN BIT(RCC_APB1ENR_TIM5EN_BIT) +#define RCC_APB1ENR_TIM4EN BIT(RCC_APB1ENR_TIM4EN_BIT) +#define RCC_APB1ENR_TIM3EN BIT(RCC_APB1ENR_TIM3EN_BIT) +#define RCC_APB1ENR_TIM2EN BIT(RCC_APB1ENR_TIM2EN_BIT) + +/* Backup domain control register */ + +#define RCC_BDCR_BDRST_BIT 16 +#define RCC_BDCR_RTCEN_BIT 15 +#define RCC_BDCR_LSEBYP_BIT 2 +#define RCC_BDCR_LSERDY_BIT 1 +#define RCC_BDCR_LSEON_BIT 0 + +#define RCC_BDCR_BDRST BIT(RCC_BDCR_BDRST_BIT) +#define RCC_BDCR_RTCEN BIT(RCC_BDCR_RTCEN_BIT) +#define RCC_BDCR_RTCSEL (0x3 << 8) +#define RCC_BDCR_RTCSEL_LSE (0x1 << 8) +#define RCC_BDCR_RTCSEL_LSI (0x2 << 8) +#define RCC_BDCR_RTCSEL_HSE_DIV_128 (0x3 << 8) +#define RCC_BDCR_LSEBYP BIT(RCC_BDCR_LSEBYP_BIT) +#define RCC_BDCR_LSERDY BIT(RCC_BDCR_LSERDY_BIT) +#define RCC_BDCR_LSEON BIT(RCC_BDCR_LSEON_BIT) + +/* Control/status register */ + +#define RCC_CSR_LPWRRSTF_BIT 31 +#define RCC_CSR_WWDGRSTF_BIT 30 +#define RCC_CSR_IWDGRSTF_BIT 29 +#define RCC_CSR_SFTRSTF_BIT 28 +#define RCC_CSR_PORRSTF_BIT 27 +#define RCC_CSR_PINRSTF_BIT 26 +#define RCC_CSR_RMVF_BIT 25 +#define RCC_CSR_LSIRDY_BIT 1 +#define RCC_CSR_LSION_BIT 0 + +#define RCC_CSR_LPWRRSTF BIT(RCC_CSR_LPWRRSTF_BIT) +#define RCC_CSR_WWDGRSTF BIT(RCC_CSR_WWDGRSTF_BIT) +#define RCC_CSR_IWDGRSTF BIT(RCC_CSR_IWDGRSTF_BIT) +#define RCC_CSR_SFTRSTF BIT(RCC_CSR_SFTRSTF_BIT) +#define RCC_CSR_PORRSTF BIT(RCC_CSR_PORRSTF_BIT) +#define RCC_CSR_PINRSTF BIT(RCC_CSR_PINRSTF_BIT) +#define RCC_CSR_RMVF BIT(RCC_CSR_RMVF_BIT) +#define RCC_CSR_LSIRDY BIT(RCC_CSR_LSIRDY_BIT) +#define RCC_CSR_LSION BIT(RCC_CSR_LSION_BIT) + +/** + * Identifies bus and clock line for a device + */ +typedef enum { + RCC_SRAM, + RCC_GPIOA, + RCC_GPIOB, + RCC_GPIOC, + RCC_GPIOD, + RCC_AFIO, + RCC_ADC1, + RCC_ADC2, + RCC_USART1, + RCC_USART2, + RCC_USART3, + RCC_TIMER1, + RCC_TIMER2, + RCC_TIMER3, + RCC_TIMER4, + RCC_SPI1, + RCC_SPI2, + RCC_DMA1, + RCC_PWR, + RCC_BKP, + RCC_CAN, + RCC_USB, + RCC_I2C1, + RCC_I2C2, + RCC_CRC, + RCC_WWDG, + RCC_FLITF, +#if defined(STM32_HIGH_DENSITY) || defined(STM32_XL_DENSITY) + RCC_SDIO, + RCC_FSMC, + RCC_GPIOE, + RCC_GPIOF, + RCC_GPIOG, + RCC_ADC3, + RCC_UART4, + RCC_UART5, + RCC_TIMER5, + RCC_TIMER6, + RCC_TIMER7, + RCC_TIMER8, + RCC_DAC, + RCC_DMA2, + RCC_SPI3, +#endif +#ifdef STM32_XL_DENSITY + RCC_TIMER9, + RCC_TIMER10, + RCC_TIMER11, + RCC_TIMER12, + RCC_TIMER13, + RCC_TIMER14, +#endif +} rcc_clk_id; + +/* SYSCLK source */ #define RCC_CLKSRC_HSI (0x0) #define RCC_CLKSRC_HSE (0x1) #define RCC_CLKSRC_PLL (0x2) -/* pll entry clock source */ -#define RCC_PLLSRC_HSE (0x1 << 16) -#define RCC_PLLSRC_HSI_DIV_2 (0x0 << 16) - -/* adc prescaler dividers */ +/* ADC prescaler dividers */ #define RCC_ADCPRE_PCLK_DIV_2 (0x0 << 14) #define RCC_ADCPRE_PCLK_DIV_4 (0x1 << 14) #define RCC_ADCPRE_PCLK_DIV_6 (0x2 << 14) #define RCC_ADCPRE_PCLK_DIV_8 (0x3 << 14) -/* apb1 prescaler dividers */ +/* APB1 prescaler dividers */ #define RCC_APB1_HCLK_DIV_1 (0x0 << 8) #define RCC_APB1_HCLK_DIV_2 (0x4 << 8) #define RCC_APB1_HCLK_DIV_4 (0x5 << 8) #define RCC_APB1_HCLK_DIV_8 (0x6 << 8) #define RCC_APB1_HCLK_DIV_16 (0x7 << 8) -/* apb2 prescaler dividers */ +/* APB2 prescaler dividers */ #define RCC_APB2_HCLK_DIV_1 (0x0 << 11) #define RCC_APB2_HCLK_DIV_2 (0x4 << 11) #define RCC_APB2_HCLK_DIV_4 (0x5 << 11) #define RCC_APB2_HCLK_DIV_8 (0x6 << 11) #define RCC_APB2_HCLK_DIV_16 (0x7 << 11) -/* ahb prescaler dividers */ +/* AHB prescaler dividers */ #define RCC_AHB_SYSCLK_DIV_1 (0x0 << 4) #define RCC_AHB_SYSCLK_DIV_2 (0x8 << 4) #define RCC_AHB_SYSCLK_DIV_4 (0x9 << 4) @@ -119,75 +492,19 @@ extern "C"{ #define RCC_AHB_SYSCLK_DIV_256 (0xE << 4) #define RCC_AHB_SYSCLK_DIV_512 (0xF << 4) -/* pll multipliers */ -#define RCC_PLLMUL_2 (0x0 << 18) -#define RCC_PLLMUL_3 (0x1 << 18) -#define RCC_PLLMUL_4 (0x2 << 18) -#define RCC_PLLMUL_5 (0x3 << 18) -#define RCC_PLLMUL_6 (0x4 << 18) -#define RCC_PLLMUL_7 (0x5 << 18) -#define RCC_PLLMUL_8 (0x6 << 18) -#define RCC_PLLMUL_9 (0x7 << 18) -#define RCC_PLLMUL_10 (0x8 << 18) -#define RCC_PLLMUL_11 (0x9 << 18) -#define RCC_PLLMUL_12 (0xA << 18) -#define RCC_PLLMUL_13 (0xB << 18) -#define RCC_PLLMUL_14 (0xC << 18) -#define RCC_PLLMUL_15 (0xD << 18) -#define RCC_PLLMUL_16 (0xE << 18) - - -/* prescalers */ -enum { +/* Prescalers */ +typedef enum rcc_prescaler { RCC_PRESCALER_AHB, RCC_PRESCALER_APB1, RCC_PRESCALER_APB2, RCC_PRESCALER_USB, RCC_PRESCALER_ADC -}; - -/* - * Identifies bus and clock line for a device - */ -typedef enum { - RCC_GPIOA, - RCC_GPIOB, - RCC_GPIOC, - RCC_GPIOD, - RCC_GPIOE, // High-density devices only (Maple Native) - RCC_GPIOF, // High-density devices only (Maple Native) - RCC_GPIOG, // High-density devices only (Maple Native) - RCC_AFIO, - RCC_ADC1, - RCC_ADC2, - RCC_ADC3, - RCC_USART1, - RCC_USART2, - RCC_USART3, - RCC_UART4, // High-density devices only (Maple Native) - RCC_UART5, // High-density devices only (Maple Native) - RCC_TIMER1, - RCC_TIMER2, - RCC_TIMER3, - RCC_TIMER4, - RCC_TIMER5, // High-density devices only (Maple Native) - RCC_TIMER6, // High-density devices only (Maple Native) - RCC_TIMER7, // High-density devices only (Maple Native) - RCC_TIMER8, // High-density devices only (Maple Native) - RCC_SPI1, - RCC_SPI2, - RCC_FSMC, // High-density devices only (Maple Native) - RCC_DAC, // High-density devices only (Maple Native) - RCC_DMA1, - RCC_DMA2, // High-density devices only (Maple Native) - RCC_PWR, - RCC_BKP, -} rcc_clk_id; +} rcc_prescaler; void rcc_clk_init(uint32 sysclk_src, uint32 pll_src, uint32 pll_mul); void rcc_clk_enable(rcc_clk_id device); void rcc_reset_dev(rcc_clk_id device); -void rcc_set_prescaler(uint32 prescaler, uint32 divider); +void rcc_set_prescaler(rcc_prescaler prescaler, uint32 divider); #ifdef __cplusplus } // extern "C" -- cgit v1.2.3