1 // SPDX-License-Identifier: GPL-2.0+
3  * Copyright (C) 2016, STMicroelectronics - All Rights Reserved
22 	bool stm32f4 = uart_info->stm32f4;  in _stm32_serial_setbrg()
45 	_stm32_serial_setbrg(plat->base, plat->uart_info,  in stm32_serial_setbrg()
46 			     plat->clock_rate, baudrate);  in stm32_serial_setbrg()
54 	bool stm32f4 = plat->uart_info->stm32f4;  in stm32_serial_setconfig()
55 	u8 uart_enable_bit = plat->uart_info->uart_enable_bit;  in stm32_serial_setconfig()
56 	u32 cr1 = plat->base + CR1_OFFSET(stm32f4);  in stm32_serial_setconfig()
58 	uint parity = SERIAL_GET_PARITY(serial_config);  in stm32_serial_setconfig()  local
63 	 * only parity config is implemented, check if other serial settings  in stm32_serial_setconfig()
65 	 * (STM32F4 serial IP didn't support parity setting)  in stm32_serial_setconfig()
68 		return -ENOTSUPP; /* not supported in driver*/  in stm32_serial_setconfig()
72 	 * PCE: parity check enable  in stm32_serial_setconfig()
73 	 * PS : '0' : Even / '1' : Odd  in stm32_serial_setconfig()
75 	 * M[1:0] = '01' : 9 Data bits with parity  in stm32_serial_setconfig()
77 	switch (parity) {  in stm32_serial_setconfig()
102 	bool stm32f4 = plat->uart_info->stm32f4;  in stm32_serial_getc()
103 	fdt_addr_t base = plat->base;  in stm32_serial_getc()
107 		return -EAGAIN;  in stm32_serial_getc()
115 		return -EIO;  in stm32_serial_getc()
125 	bool stm32f4 = uart_info->stm32f4;  in _stm32_serial_putc()
128 		return -EAGAIN;  in _stm32_serial_putc()
139 	return _stm32_serial_putc(plat->base, plat->uart_info, c);  in stm32_serial_putc()
145 	bool stm32f4 = plat->uart_info->stm32f4;  in stm32_serial_pending()
146 	fdt_addr_t base = plat->base;  in stm32_serial_pending()
159 	bool stm32f4 = uart_info->stm32f4;  in _stm32_serial_init()
160 	u8 uart_enable_bit = uart_info->uart_enable_bit;  in _stm32_serial_init()
162 	/* Disable uart-> enable fifo -> enable uart */  in _stm32_serial_init()
165 	if (uart_info->has_fifo)  in _stm32_serial_init()
178 	plat->uart_info = (struct stm32_uart_info *)dev_get_driver_data(dev);  in stm32_serial_probe()
197 	plat->clock_rate = clk_get_rate(&clk);  in stm32_serial_probe()
198 	if (plat->clock_rate < 0) {  in stm32_serial_probe()
200 		return plat->clock_rate;  in stm32_serial_probe()
203 	_stm32_serial_init(plat->base, plat->uart_info);  in stm32_serial_probe()
209 	{ .compatible = "st,stm32-uart", .data = (ulong)&stm32f4_info},
210 	{ .compatible = "st,stm32f7-uart", .data = (ulong)&stm32f7_info},
211 	{ .compatible = "st,stm32h7-uart", .data = (ulong)&stm32h7_info},
219 	plat->base = devfdt_get_addr(dev);  in stm32_serial_ofdata_to_platdata()
220 	if (plat->base == FDT_ADDR_T_NONE)  in stm32_serial_ofdata_to_platdata()
221 		return -EINVAL;  in stm32_serial_ofdata_to_platdata()
280 	while (_stm32_serial_putc(base, uart_info, c) == -EAGAIN)  in _debug_uart_putc()