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git://projects.qi-hardware.com/openwrt-xburst.git
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79 lines
2.4 KiB
C
79 lines
2.4 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 <linux/serial_8250.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/rc32434/rc32434.h>
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extern unsigned int idt_cpu_freq;
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static struct uart_port serial_req = {
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.type = PORT_16550A,
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.line = 0,
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.irq = RC32434_UART0_IRQ,
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//.flags = STD_COM_FLAGS,
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.iotype = UPIO_MEM,
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.membase = (char *) KSEG1ADDR(RC32434_UART0_BASE),
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// .fifosize = 14
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.regshift = 2
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};
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int __init setup_serial_port(void)
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{
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serial_req.uartclk = idt_cpu_freq;
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if (early_serial_setup(&serial_req))
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return -ENODEV;
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return(0);
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}
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