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/**************************************************************************
*
* BRIEF MODULE DESCRIPTION
* Serial port initialisation.
*
* Copyright 2004 IDT Inc. (rischelp@idt.com)
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*
**************************************************************************
* May 2004 rkt, neb
*
* Initial Release
*
*
*
**************************************************************************
*/
#include <linux/autoconf.h>
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/tty.h>
#include <linux/serial.h>
#include <linux/serial_core.h>
#include <asm/time.h>
#include <asm/cpu.h>
#include <asm/bootinfo.h>
#include <asm/irq.h>
#include <asm/serial.h>
#include <asm/idt-boards/rc32434/rc32434.h>
extern int __init early_serial_setup(struct uart_port *port);
#define BASE_BAUD (1843200 / 16)
extern unsigned int idt_cpu_freq;
extern int __init setup_serial_port(void)
{
static struct uart_port serial_req[2];
memset(serial_req, 0, sizeof(serial_req));
serial_req[0].type = PORT_16550A;
serial_req[0].line = 0;
serial_req[0].flags = STD_COM_FLAGS;
serial_req[0].iotype = SERIAL_IO_MEM;
serial_req[0].regshift = 2;
switch (mips_machtype) {
case MACH_ARUBA_AP70:
serial_req[0].irq = 104;
serial_req[0].mapbase = KSEG1ADDR(0x18058003);
serial_req[0].membase = (char *) KSEG1ADDR(0x18058003);
serial_req[0].uartclk = idt_cpu_freq;
break;
case MACH_ARUBA_AP65:
case MACH_ARUBA_AP60:
default:
serial_req[0].irq = 12;
serial_req[0].mapbase = KSEG1ADDR(0xbc000003);
serial_req[0].membase = (char *) KSEG1ADDR(0xbc000003);
serial_req[0].uartclk = idt_cpu_freq / 2;
break;
}
early_serial_setup(&serial_req[0]);
return(0);
}
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