173b4390fSRalf Baechle /*
273b4390fSRalf Baechle * BRIEF MODULE DESCRIPTION
373b4390fSRalf Baechle * Serial port initialisation.
473b4390fSRalf Baechle *
573b4390fSRalf Baechle * Copyright 2004 IDT Inc. (rischelp@idt.com)
673b4390fSRalf Baechle *
773b4390fSRalf Baechle * This program is free software; you can redistribute it and/or modify it
873b4390fSRalf Baechle * under the terms of the GNU General Public License as published by the
973b4390fSRalf Baechle * Free Software Foundation; either version 2 of the License, or (at your
1073b4390fSRalf Baechle * option) any later version.
1173b4390fSRalf Baechle *
1273b4390fSRalf Baechle * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
1373b4390fSRalf Baechle * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
1473b4390fSRalf Baechle * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
1573b4390fSRalf Baechle * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
1673b4390fSRalf Baechle * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
1773b4390fSRalf Baechle * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
1873b4390fSRalf Baechle * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
1973b4390fSRalf Baechle * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
2073b4390fSRalf Baechle * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
2173b4390fSRalf Baechle * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
2273b4390fSRalf Baechle *
2373b4390fSRalf Baechle * You should have received a copy of the GNU General Public License along
2473b4390fSRalf Baechle * with this program; if not, write to the Free Software Foundation, Inc.,
2573b4390fSRalf Baechle * 675 Mass Ave, Cambridge, MA 02139, USA.
2673b4390fSRalf Baechle */
2773b4390fSRalf Baechle
2873b4390fSRalf Baechle #include <linux/init.h>
2973b4390fSRalf Baechle #include <linux/tty.h>
3073b4390fSRalf Baechle #include <linux/serial_core.h>
3173b4390fSRalf Baechle #include <linux/serial_8250.h>
32*ca4d3e67SDavid Howells #include <linux/irq.h>
3373b4390fSRalf Baechle
3473b4390fSRalf Baechle #include <asm/serial.h>
35606a083bSFlorian Fainelli #include <asm/mach-rc32434/rb.h>
3673b4390fSRalf Baechle
3773b4390fSRalf Baechle extern unsigned int idt_cpu_freq;
3873b4390fSRalf Baechle
3973b4390fSRalf Baechle static struct uart_port rb532_uart = {
401452fc7dSPhil Sutter .flags = UPF_BOOT_AUTOCONF,
4173b4390fSRalf Baechle .line = 0,
42606a083bSFlorian Fainelli .irq = UART0_IRQ,
4373b4390fSRalf Baechle .iotype = UPIO_MEM,
44606a083bSFlorian Fainelli .membase = (char *)KSEG1ADDR(REGBASE + UART0BASE),
4573b4390fSRalf Baechle .regshift = 2
4673b4390fSRalf Baechle };
4773b4390fSRalf Baechle
setup_serial_port(void)4873b4390fSRalf Baechle int __init setup_serial_port(void)
4973b4390fSRalf Baechle {
5073b4390fSRalf Baechle rb532_uart.uartclk = idt_cpu_freq;
5173b4390fSRalf Baechle
5273b4390fSRalf Baechle return early_serial_setup(&rb532_uart);
5373b4390fSRalf Baechle }
5473b4390fSRalf Baechle arch_initcall(setup_serial_port);
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