1/* 2 * BRIEF MODULE DESCRIPTION 3 * Serial port initialisation. 4 * 5 * Copyright 2004 IDT Inc. (rischelp@idt.com) 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by the 9 * Free Software Foundation; either version 2 of the License, or (at your 10 * option) any later version. 11 * 12 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED 13 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 14 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 15 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 16 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 17 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 18 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 19 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 20 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 21 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 22 * 23 * You should have received a copy of the GNU General Public License along 24 * with this program; if not, write to the Free Software Foundation, Inc., 25 * 675 Mass Ave, Cambridge, MA 02139, USA. 26 */ 27 28#include <linux/init.h> 29#include <linux/tty.h> 30#include <linux/serial_core.h> 31#include <linux/serial_8250.h> 32 33#include <asm/serial.h> 34#include <asm/mach-rc32434/rb.h> 35 36extern unsigned int idt_cpu_freq; 37 38static struct uart_port rb532_uart = { 39 .flags = UPF_BOOT_AUTOCONF, 40 .line = 0, 41 .irq = UART0_IRQ, 42 .iotype = UPIO_MEM, 43 .membase = (char *)KSEG1ADDR(REGBASE + UART0BASE), 44 .regshift = 2 45}; 46 47int __init setup_serial_port(void) 48{ 49 rb532_uart.uartclk = idt_cpu_freq; 50 51 return early_serial_setup(&rb532_uart); 52} 53arch_initcall(setup_serial_port); 54