The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/mips/conf/SENTRY5

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    1 #
    2 # $FreeBSD: releng/8.2/sys/mips/conf/SENTRY5 215938 2010-11-27 12:26:40Z jchandra $
    3 #
    4 # The Broadcom Sentry5 series of processors and boards is very commonly
    5 # used in COTS hardware including the Netgear WGT634U.
    6 #
    7 # Some tweaks are needed for use with this platform:
    8 #
    9 # * CFE firmware's ELF loader expects an ELF kernel which is linked so as
   10 #   not to contain offsets in PT_LOAD which point behind the actual offset
   11 #   of that PT header. FreeBSD normally links the first PT_LOAD header to
   12 #   begin at offset 0.
   13 #
   14 # * Broadcom's support package for the internal bus, the Sonics
   15 #   SiliconBackplane, needs to be integrated to detect and probe hardware
   16 #   correctly.
   17 #
   18 # * The clock needs to be calibrated correctly, so that DELAY() may work.
   19 #   One problem with this is that the low-level printf() routine calls DELAY(),
   20 #   which currently causes divide-by-zero trap
   21 #
   22 # * The Broadcom CPUs have no FPU. Attempting to detect one by reading CP1's
   23 #   status register causes an unhandled boot-time exception. An FPU emulator
   24 #   will be necessary to support multi-user boot.
   25 #
   26 
   27 ident           SENTRY5
   28 cpu             CPU_MIPS4KC
   29 options         ISA_MIPS32
   30 options         CPU_SENTRY5                     # XXX should this be a
   31                                                 # sub-cpu option?
   32 
   33 # XXX only siba should be hardwired for now; we will use
   34 # bus enumeration there
   35 files           "../sentry5/files.sentry5"
   36 hints           "SENTRY5.hints"
   37 
   38 # sentry5 normally ships with cfe firmware; use the console for now
   39 options         CFE
   40 options         CFE_CONSOLE
   41 options         ALT_BREAK_TO_DEBUGGER
   42 
   43 #makeoptions    ARCH_FLAGS=-march=mips32
   44 makeoptions     MIPS_LITTLE_ENDIAN=defined
   45 makeoptions     DEBUG=-g                #Build kernel with gdb(1) debug symbols
   46 makeoptions     MODULES_OVERRIDE=""
   47 
   48 options         DDB
   49 options         KDB
   50 
   51 options         SCHED_4BSD              #4BSD scheduler
   52 options         INET                    #InterNETworking
   53 options         NFSCLIENT               #Network Filesystem Client
   54 options         NFS_ROOT                #NFS usable as /, requires NFSCLIENT
   55 options         PSEUDOFS                #Pseudo-filesystem framework
   56 options         _KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions
   57 
   58 # Debugging for use in -current
   59 options         INVARIANTS
   60 options         INVARIANT_SUPPORT
   61 
   62 #options                BUS_DEBUG
   63 #makeoptions    BUS_DEBUG
   64 
   65 device          siba                    # Sonics SiliconBackplane
   66 device          pci                     # siba_pcib
   67 
   68 # device                bfe                     # XXX will build both pci and siba
   69 # device                miibus                  # attachments
   70 
   71 # pci devices
   72 # notyet:
   73 #device         ath                     # in pci slot
   74 #device         ath_hal                 # pci chip support
   75 #options                AH_SUPPORT_AR5416       # enable AR5416 tx/rx descriptors
   76 
   77 options         USB_DEBUG               # enable debug msgs
   78 device          usb                     # USB Bus (required)
   79 device          uhci                    # UHCI PCI->USB interface
   80 device          ehci                    # EHCI PCI->USB interface (USB 2.0)
   81 
   82 # need to teach the code to ignore the bridge....
   83 
   84 
   85 # XXX notyet; need to be auto probed children of siba_cc.
   86 #device         uart
   87 
   88 device          loop
   89 device          ether
   90 device          md

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