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