diff options
Diffstat (limited to 'arch/arm/mach-stm32/stm32f4/clock.c')
| -rw-r--r-- | arch/arm/mach-stm32/stm32f4/clock.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/arm/mach-stm32/stm32f4/clock.c b/arch/arm/mach-stm32/stm32f4/clock.c index 3deb17a..576d3e6 100644 --- a/arch/arm/mach-stm32/stm32f4/clock.c +++ b/arch/arm/mach-stm32/stm32f4/clock.c @@ -11,6 +11,7 @@ #include <common.h> #include <asm/io.h> #include <asm/arch/stm32.h> +#include <asm/arch/stm32_periph.h> #define RCC_CR_HSION (1 << 0) #define RCC_CR_HSEON (1 << 16) @@ -50,6 +51,14 @@ #define RCC_APB1ENR_PWREN (1 << 28) +/* + * RCC USART specific definitions + */ +#define RCC_ENR_USART1EN (1 << 4) +#define RCC_ENR_USART2EN (1 << 17) +#define RCC_ENR_USART3EN (1 << 18) +#define RCC_ENR_USART6EN (1 << 5) + #define PWR_CR_VOS0 (1 << 14) #define PWR_CR_VOS1 (1 << 15) #define PWR_CR_VOS_MASK 0xC000 @@ -221,3 +230,14 @@ unsigned long clock_get(enum clock clck) break; } } + +void clock_setup(int peripheral) +{ + switch (peripheral) { + case USART1_CLOCK_CFG: + setbits_le32(&STM32_RCC->apb2enr, RCC_ENR_USART1EN); + break; + default: + break; + } +} |