db78xxx.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: releng/8.3/sys/arm/mv/discovery/db78xxx.c 197251 2009-09-16 12:07:58Z raj $");
   34 
   35 #include <sys/param.h>
   36 #include <sys/systm.h>
   37 #include <sys/bus.h>
   38 #include <sys/kernel.h>
   39 
   40 #include <vm/vm.h>
   41 #include <vm/pmap.h>
   42 
   43 #include <machine/bus.h>
   44 #include <machine/pte.h>
   45 #include <machine/pmap.h>
   46 #include <machine/vmparam.h>
   47 
   48 #include <arm/mv/mvreg.h>
   49 #include <arm/mv/mvvar.h>
   50 #include <arm/mv/mvwin.h>
   51 
   52 /*
   53  * Virtual address space layout:
   54  * -----------------------------
   55  * 0x0000_0000 - 0xbfff_ffff    : user process
   56  *
   57  * 0xc040_0000 - virtual_avail  : kernel reserved (text, data, page tables
   58  *                              : structures, ARM stacks etc.)
   59  * virtual_avail - 0xefff_ffff  : KVA (virtual_avail is typically < 0xc0a0_0000)
   60  * 0xf000_0000 - 0xf0ff_ffff    : no-cache allocation area (16MB)
   61  * 0xf100_0000 - 0xf10f_ffff    : SoC integrated devices registers range (1MB)
   62  * 0xf110_0000 - 0xf11f_ffff    : PCI-Express I/O space (1MB)
   63  * 0xf120_0000 - 0xf12f_ffff    : unused (1MB)
   64  * 0xf130_0000 - 0xf52f_ffff    : PCI-Express memory space (64MB)
   65  * 0xf930_0000 - 0xfffe_ffff    : unused (~172MB)
   66  * 0xffff_0000 - 0xffff_0fff    : 'high' vectors page (4KB)
   67  * 0xffff_1000 - 0xffff_1fff    : ARM_TP_ADDRESS/RAS page (4KB)
   68  * 0xffff_2000 - 0xffff_ffff    : unused (~55KB)
   69  */
   70 
   71 /* Static device mappings. */
   72 const struct pmap_devmap pmap_devmap[] = {
   73         /*
   74          * Map the on-board devices VA == PA so that we can access them
   75          * with the MMU on or off.
   76          */
   77         { /* SoC integrated peripherals registers range */
   78                 MV_BASE,
   79                 MV_PHYS_BASE,
   80                 MV_SIZE,
   81                 VM_PROT_READ | VM_PROT_WRITE,
   82                 PTE_NOCACHE,
   83         },
   84         { /* PCIE I/O */
   85                 MV_PCIE_IO_BASE,
   86                 MV_PCIE_IO_PHYS_BASE,
   87                 MV_PCIE_IO_SIZE,
   88                 VM_PROT_READ | VM_PROT_WRITE,
   89                 PTE_NOCACHE,
   90         },
   91         { /* PCIE Memory */
   92                 MV_PCIE_MEM_BASE,
   93                 MV_PCIE_MEM_PHYS_BASE,
   94                 MV_PCIE_MEM_SIZE,
   95                 VM_PROT_READ | VM_PROT_WRITE,
   96                 PTE_NOCACHE,
   97         },
   98         { 0, 0, 0, 0, 0, }
   99 };
  100 
  101 const struct gpio_config mv_gpio_config[] = {
  102         { -1, -1, -1 }
  103 };
  104 
  105 void
  106 platform_mpp_init(void)
  107 {
  108 
  109         /*
  110          * MPP Configuration for DB-78100-BP
  111          *
  112          * MPP[0]:  GE1_TXCLK
  113          * MPP[1]:  GE1_TXCTL
  114          * MPP[2]:  GE1_RXCTL
  115          * MPP[3]:  GE1_RXCLK
  116          * MPP[4]:  GE1_TXD[0]
  117          * MPP[5]:  GE1_TXD[1]
  118          * MPP[6]:  GE1_TXD[2]
  119          * MPP[7]:  GE1_TXD[3]
  120          * MPP[8]:  GE1_RXD[0]
  121          * MPP[9]:  GE1_RXD[1]
  122          * MPP[10]: GE1_RXD[2]
  123          * MPP[11]: GE1_RXD[3]
  124          * MPP[13]: SYSRST_OUTn
  125          * MPP[14]: SATA1_ACT
  126          * MPP[15]: SATA0_ACT
  127          * MPP[16]: UA2_TXD
  128          * MPP[17]: UA2_RXD
  129          * MPP[18]: <UNKNOWN>
  130          * MPP[19]: <UNKNOWN>
  131          * MPP[20]: <UNKNOWN>
  132          * MPP[21]: <UNKNOWN>
  133          * MPP[22]: UA3_TXD
  134          * MPP[23]: UA3_RXD
  135          * MPP[48]: <UNKNOWN>
  136          * MPP[49]: <UNKNOWN>
  137          *
  138          * Others:  GPIO
  139          *
  140          * <UNKNOWN> entries are not documented, not on the schematics etc.
  141          */
  142         bus_space_write_4(obio_tag, MV_MPP_BASE, MPP_CONTROL0, 0x22222222);
  143         bus_space_write_4(obio_tag, MV_MPP_BASE, MPP_CONTROL1, 0x33302222);
  144         bus_space_write_4(obio_tag, MV_MPP_BASE, MPP_CONTROL2, 0x44333344);
  145         bus_space_write_4(obio_tag, MV_MPP_BASE, MPP_CONTROL3, 0x00000000);
  146         bus_space_write_4(obio_tag, MV_MPP_BASE, MPP_CONTROL4, 0x00000000);
  147         bus_space_write_4(obio_tag, MV_MPP_BASE, MPP_CONTROL5, 0x00000000);
  148         bus_space_write_4(obio_tag, MV_MPP_BASE, MPP_CONTROL6, 0x0000FFFF);
  149 }
  150 
  151 static void
  152 platform_identify(void *dummy)
  153 {
  154 
  155         soc_identify();
  156 
  157         /*
  158          * XXX Board identification e.g. read out from FPGA or similar should
  159          * go here
  160          */
  161 }
  162 SYSINIT(platform_identify, SI_SUB_CPU, SI_ORDER_SECOND, platform_identify, NULL);

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FreeBSD/Linux Kernel Cross Reference sys/arm/mv/discovery/db78xxx.c

FreeBSD/Linux Kernel Cross Reference
sys/arm/mv/discovery/db78xxx.c