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stm32l0: rcc: Add clock struct setup helper

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Based on l1, l4 and friends.
This commit is contained in:
Karl Palsson
2017-05-01 23:17:31 +00:00
parent f594ddb395
commit bc898d1f92
2 changed files with 67 additions and 1 deletions
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20
include/libopencm3/stm32/l0/rcc.h
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@@ -40,6 +40,9 @@
#ifndef LIBOPENCM3_RCC_H
#define LIBOPENCM3_RCC_H
#include <stdbool.h>
#include <stdint.h>
#include <libopencm3/stm32/pwr.h>
/* --- RCC registers ------------------------------------------------------- */
@@ -496,6 +499,21 @@
#define RCC_CSR_LSIRDY (1 << 1)
#define RCC_CSR_LSION (1 << 0)
struct rcc_clock_scale {
uint8_t pll_mul;
uint16_t pll_div;
uint8_t pll_source;
uint8_t flash_waitstates;
enum pwr_vos_scale voltage_scale;
uint8_t hpre;
uint8_t ppre1;
uint8_t ppre2;
// FIXME enum pwr_vos_scale voltage_scale;
uint32_t ahb_frequency;
uint32_t apb1_frequency;
uint32_t apb2_frequency;
uint8_t msi_range;
};
/* --- Variable definitions ------------------------------------------------ */
extern uint32_t rcc_ahb_frequency;
@@ -672,7 +690,7 @@ void rcc_set_pll_divider(uint32_t factor);
void rcc_set_ppre2(uint32_t ppre2);
void rcc_set_ppre1(uint32_t ppre1);
void rcc_set_hpre(uint32_t hpre);
/* TODO */
void rcc_clock_setup_pll(const struct rcc_clock_scale *clock);
END_DECLS