diff options
Diffstat (limited to 'drivers/serial/serial_stm32.c')
| -rw-r--r-- | drivers/serial/serial_stm32.c | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/drivers/serial/serial_stm32.c b/drivers/serial/serial_stm32.c index 91a5dde577..c793ba6e90 100644 --- a/drivers/serial/serial_stm32.c +++ b/drivers/serial/serial_stm32.c @@ -35,24 +35,6 @@ struct stm32_usart { DECLARE_GLOBAL_DATA_PTR; -#define MAX_SERIAL_PORTS 4 - -/* - * 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) - -/* Array used to figure out which RCC bit needs to be set */ -static const unsigned long usart_port_rcc_pairs[MAX_SERIAL_PORTS][2] = { - { STM32_USART1_BASE, RCC_ENR_USART1EN }, - { STM32_USART2_BASE, RCC_ENR_USART2EN }, - { STM32_USART3_BASE, RCC_ENR_USART3EN }, - { STM32_USART6_BASE, RCC_ENR_USART6EN } -}; - static int stm32_serial_setbrg(struct udevice *dev, int baudrate) { struct stm32_serial_platdata *plat = dev->platdata; @@ -114,28 +96,6 @@ static int stm32_serial_probe(struct udevice *dev) { struct stm32_serial_platdata *plat = dev->platdata; struct stm32_usart *const usart = plat->base; - int usart_port = -1; - int i; - - for (i = 0; i < MAX_SERIAL_PORTS; i++) { - if ((u32)usart == usart_port_rcc_pairs[i][0]) { - usart_port = i; - break; - } - } - - if (usart_port == -1) - return -EINVAL; - - if (((u32)usart & STM32_BUS_MASK) == STM32_APB1PERIPH_BASE) - setbits_le32(&STM32_RCC->apb1enr, - usart_port_rcc_pairs[usart_port][1]); - else if (((u32)usart & STM32_BUS_MASK) == STM32_APB2PERIPH_BASE) - setbits_le32(&STM32_RCC->apb2enr, - usart_port_rcc_pairs[usart_port][1]); - else - return -EINVAL; - setbits_le32(&usart->cr1, USART_CR1_RE | USART_CR1_TE | USART_CR1_UE); return 0; |
