1 // SPDX-License-Identifier: GPL-2.0-or-later
22 	struct uart_8250_port uart;  in ibmasm_register_uart()  local
25 	iomem_base = sp->base_address + SCOUT_COM_B_BASE;  in ibmasm_register_uart()
27 	/* read the uart scratch register to determine if the UART  in ibmasm_register_uart()
31 		dev_info(sp->dev, "IBM SP UART not registered, owned by service processor\n");  in ibmasm_register_uart()
32 		sp->serial_line = -1;  in ibmasm_register_uart()
36 	memset(&uart, 0, sizeof(uart));  in ibmasm_register_uart()
37 	uart.port.irq		= sp->irq;  in ibmasm_register_uart()
38 	uart.port.uartclk	= 3686400;  in ibmasm_register_uart()
39 	uart.port.flags		= UPF_SHARE_IRQ;  in ibmasm_register_uart()
40 	uart.port.iotype	= UPIO_MEM;  in ibmasm_register_uart()
41 	uart.port.membase	= iomem_base;  in ibmasm_register_uart()
43 	sp->serial_line = serial8250_register_8250_port(&uart);  in ibmasm_register_uart()
44 	if (sp->serial_line < 0) {  in ibmasm_register_uart()
45 		dev_err(sp->dev, "Failed to register serial port\n");  in ibmasm_register_uart()
48 	enable_uart_interrupts(sp->base_address);  in ibmasm_register_uart()
53 	if (sp->serial_line < 0)  in ibmasm_unregister_uart()
56 	disable_uart_interrupts(sp->base_address);  in ibmasm_unregister_uart()
57 	serial8250_unregister_port(sp->serial_line);  in ibmasm_unregister_uart()