kirkwood.c

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    1 /*-
    2  * Copyright (C) 2008 MARVELL INTERNATIONAL LTD.
    3  * All rights reserved.
    4  *
    5  * Developed by Semihalf.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  * 3. Neither the name of MARVELL nor the names of contributors
   16  *    may be used to endorse or promote products derived from this software
   17  *    without specific prior written permission.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   22  * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
   23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   29  * SUCH DAMAGE.
   30  */
   31 
   32 #include <sys/cdefs.h>
   33 __FBSDID("$FreeBSD$");
   34 
   35 #include <sys/param.h>
   36 #include <sys/systm.h>
   37 #include <sys/bus.h>
   38 
   39 #include <machine/bus.h>
   40 
   41 #include <arm/mv/mvreg.h>
   42 #include <arm/mv/mvvar.h>
   43 #include <arm/mv/mvwin.h>
   44 
   45 struct resource_spec mv_gpio_res[] = {
   46         { SYS_RES_MEMORY,       0,      RF_ACTIVE },
   47         { SYS_RES_IRQ,          0,      RF_ACTIVE },
   48         { SYS_RES_IRQ,          1,      RF_ACTIVE },
   49         { SYS_RES_IRQ,          2,      RF_ACTIVE },
   50         { SYS_RES_IRQ,          3,      RF_ACTIVE },
   51         { SYS_RES_IRQ,          4,      RF_ACTIVE },
   52         { SYS_RES_IRQ,          5,      RF_ACTIVE },
   53         { SYS_RES_IRQ,          6,      RF_ACTIVE },
   54         { -1, 0 }
   55 };
   56 
   57 const struct decode_win xor_win_tbl[] = {
   58         { 0 },
   59 };
   60 const struct decode_win *xor_wins = xor_win_tbl;
   61 int xor_wins_no = 0;
   62 
   63 uint32_t
   64 get_tclk(void)
   65 {
   66         uint32_t dev, rev;
   67 
   68         /*
   69          * On Kirkwood TCLK is not configurable and depends on silicon
   70          * revision:
   71          * - A0 and A1 have TCLK hardcoded to 200 MHz.
   72          * - Z0 and others have TCLK hardcoded to 166 MHz.
   73          */
   74         soc_id(&dev, &rev);
   75         if (dev == MV_DEV_88F6281 && (rev == 2 || rev == 3))
   76                 return (TCLK_200MHZ);
   77         if (dev == MV_DEV_88F6282)
   78                 return (TCLK_200MHZ);
   79 
   80         return (TCLK_166MHZ);
   81 }

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FreeBSD/Linux Kernel Cross Reference sys/arm/mv/kirkwood/kirkwood.c

FreeBSD/Linux Kernel Cross Reference
sys/arm/mv/kirkwood/kirkwood.c