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BREAKING: stm32f3:rcc: add more generic pll setup routines

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Deprecate the old routine and make a new one that actually handles HSI
and HSE properly, and includes the predivider and the usb divider
settings as well.
This commit is contained in:
Karl Palsson
2018-04-30 23:30:10 +00:00
parent 622475f543
commit 2204f447bb
2 changed files with 62 additions and 11 deletions
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9
include/libopencm3/stm32/f3/rcc.h
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@@ -51,6 +51,8 @@
#ifndef LIBOPENCM3_RCC_H
#define LIBOPENCM3_RCC_H
#include <stdbool.h>
/* --- RCC registers ------------------------------------------------------- */
#define RCC_CR MMIO32(RCC_BASE + 0x00)
@@ -419,9 +421,11 @@ enum rcc_clock {
};
struct rcc_clock_scale {
uint8_t pll;
uint8_t pllsrc;
uint32_t flash_config;
uint8_t pllmul;
uint8_t plldiv;
bool usbdiv1;
uint32_t flash_waitstates;
uint8_t hpre;
uint8_t ppre1;
uint8_t ppre2;
@@ -607,6 +611,7 @@ void rcc_set_prediv(uint32_t prediv);
void rcc_set_pll_multiplier(uint32_t pll);
uint32_t rcc_get_system_clock_source(void);
void rcc_backupdomain_reset(void);
void rcc_clock_setup_pll(const struct rcc_clock_scale *clock);
void rcc_clock_setup_hsi(const struct rcc_clock_scale *clock);
void rcc_set_i2c_clock_hsi(uint32_t i2c);
void rcc_set_i2c_clock_sysclk(uint32_t i2c);