You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
45 lines
829 B
45 lines
829 B
/*
|
|
* (C) Copyright 2016
|
|
* Vikas Manocha, <vikas.manocha@st.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#ifndef _SERIAL_STM32_X7_
|
|
#define _SERIAL_STM32_X7_
|
|
|
|
struct stm32_usart {
|
|
u32 cr1;
|
|
u32 cr2;
|
|
u32 cr3;
|
|
u32 brr;
|
|
u32 gtpr;
|
|
u32 rtor;
|
|
u32 rqr;
|
|
u32 sr;
|
|
u32 icr;
|
|
u32 rd_dr;
|
|
u32 tx_dr;
|
|
};
|
|
|
|
/* Information about a serial port */
|
|
struct stm32x7_serial_platdata {
|
|
struct stm32_usart *base; /* address of registers in physical memory */
|
|
unsigned long int clock_rate;
|
|
};
|
|
|
|
#define USART_CR1_OVER8 (1 << 15)
|
|
#define USART_CR1_TE (1 << 3)
|
|
#define USART_CR1_RE (1 << 2)
|
|
#define USART_CR1_UE (1 << 0)
|
|
|
|
#define USART_CR3_OVRDIS (1 << 12)
|
|
|
|
#define USART_SR_FLAG_RXNE (1 << 5)
|
|
#define USART_SR_FLAG_TXE (1 << 7)
|
|
|
|
#define USART_BRR_F_MASK 0xFF
|
|
#define USART_BRR_M_SHIFT 4
|
|
#define USART_BRR_M_MASK 0xFFF0
|
|
|
|
#endif
|
|
|