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stm32l1: rcc: Extract msi range function

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Include doxygen documentation for arguments.
This commit is contained in:
Karl Palsson
2016-08-16 13:01:40 +00:00
committed by Karl Palsson
parent cdd2054fe4
commit 90debb9fd7
2 changed files with 23 additions and 9 deletions
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19
lib/stm32/l1/rcc.c
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@@ -371,6 +371,18 @@ void rcc_osc_bypass_disable(enum rcc_osc osc)
}
}
/**
* Set the range of the MSI oscillator
* @param range desired range @ref rcc_icscr_msirange
*/
void rcc_set_msi_range(uint32_t range)
{
uint32_t reg = RCC_ICSCR;
reg &= ~(RCC_ICSCR_MSIRANGE_MASK << RCC_ICSCR_MSIRANGE_SHIFT);
reg |= (range << RCC_ICSCR_MSIRANGE_SHIFT);
RCC_ICSCR = reg;
}
void rcc_set_sysclk_source(uint32_t clk)
{
uint32_t reg32;
@@ -455,12 +467,7 @@ void rcc_rtc_select_clock(uint32_t clock)
void rcc_clock_setup_msi(const struct rcc_clock_scale *clock)
{
/* Enable internal multi-speed oscillator. */
uint32_t reg = RCC_ICSCR;
reg &= ~(RCC_ICSCR_MSIRANGE_MASK << RCC_ICSCR_MSIRANGE_SHIFT);
reg |= (clock->msi_range << RCC_ICSCR_MSIRANGE_SHIFT);
RCC_ICSCR = reg;
rcc_set_msi_range(clock->msi_range);
rcc_osc_on(RCC_MSI);
rcc_wait_for_osc_ready(RCC_MSI);