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73b4390f RB |
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> | |
606a083b | 34 | #include <asm/mach-rc32434/rb.h> |
73b4390f RB |
35 | |
36 | extern unsigned int idt_cpu_freq; | |
37 | ||
38 | static struct uart_port rb532_uart = { | |
39 | .type = PORT_16550A, | |
40 | .line = 0, | |
606a083b | 41 | .irq = UART0_IRQ, |
73b4390f | 42 | .iotype = UPIO_MEM, |
606a083b | 43 | .membase = (char *)KSEG1ADDR(REGBASE + UART0BASE), |
73b4390f RB |
44 | .regshift = 2 |
45 | }; | |
46 | ||
47 | int __init setup_serial_port(void) | |
48 | { | |
49 | rb532_uart.uartclk = idt_cpu_freq; | |
50 | ||
51 | return early_serial_setup(&rb532_uart); | |
52 | } | |
53 | arch_initcall(setup_serial_port); |