FreeBSD/Linux Kernel Cross Reference
sys/mips/nlm/uart_cpu_xlp.c

     /*-
      * Copyright 2003-2011 Netlogic Microsystems (Netlogic). All rights
      * reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions are
      * met:
      *
      * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in
     *    the documentation and/or other materials provided with the
     *    distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY Netlogic Microsystems ``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 NETLOGIC OR CONTRIBUTORS 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.
     *
     * NETLOGIC_BSD */
    
    /*
     * Skeleton of this file was based on respective code for ARM
     * code written by Olivier Houchard.
     */
    /*
     * XLRMIPS: This file is hacked from arm/...
     */
    #include "opt_platform.h"
    
    #ifndef FDT                     /* use FDT uart when fdt is enable */
    #include "opt_uart.h"
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD: releng/11.2/sys/mips/nlm/uart_cpu_xlp.c 331722 2018-03-29 02:50:57Z eadler $");
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/bus.h>
    #include <sys/cons.h>
    #include <sys/kdb.h>
    #include <sys/kernel.h>
    #include <sys/lock.h>
    #include <sys/mutex.h>
    
    #include <machine/bus.h>
    
    #include <dev/uart/uart.h>
    #include <dev/uart/uart_cpu.h>
    
    #include <mips/nlm/hal/haldefs.h>
    #include <mips/nlm/hal/iomap.h>
    #include <mips/nlm/hal/mips-extns.h>
    #include <mips/nlm/hal/uart.h>
    
    #include <mips/nlm/board.h>
    
    bus_space_tag_t uart_bus_space_io;
    bus_space_tag_t uart_bus_space_mem;
    
    int
    uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2)
    {
            return (b1->bsh == b2->bsh && b1->bst == b2->bst);
    }
    
    int
    uart_cpu_getdev(int devtype, struct uart_devinfo *di)
    {
            di->ops = uart_getops(&uart_ns8250_class);
            di->bas.chan = 0;
            di->bas.bst = rmi_uart_bus_space;
            di->bas.bsh = nlm_get_uart_regbase(0, BOARD_CONSOLE_UART);
    
            di->bas.regshft = 2;
            /* divisor = rclk / (baudrate * 16); */
            di->bas.rclk = XLP_IO_CLK;
            di->baudrate = BOARD_CONSOLE_SPEED;
            di->databits = 8;
            di->stopbits = 1;
            di->parity = UART_PARITY_NONE;
    
            uart_bus_space_io = NULL;
            uart_bus_space_mem = rmi_uart_bus_space;
            return (0);
    }
    #endif

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