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# # $FreeBSD: release/9.1.0/sys/mips/conf/SENTRY5 221753 2011-05-11 00:52:41Z gonzo $ # # The Broadcom Sentry5 series of processors and boards is very commonly # used in COTS hardware including the Netgear WGT634U. # # Some tweaks are needed for use with this platform: # # * CFE firmware's ELF loader expects an ELF kernel which is linked so as # not to contain offsets in PT_LOAD which point behind the actual offset # of that PT header. FreeBSD normally links the first PT_LOAD header to # begin at offset 0. # # * Broadcom's support package for the internal bus, the Sonics # SiliconBackplane, needs to be integrated to detect and probe hardware # correctly. # # * The clock needs to be calibrated correctly, so that DELAY() may work. # One problem with this is that the low-level printf() routine calls DELAY(), # which currently causes divide-by-zero trap # # * The Broadcom CPUs have no FPU. Attempting to detect one by reading CP1's # status register causes an unhandled boot-time exception. An FPU emulator # will be necessary to support multi-user boot. # ident SENTRY5 # XXX only siba should be hardwired for now; we will use # bus enumeration there hints "SENTRY5.hints" include "../sentry5/std.sentry5" # sentry5 normally ships with cfe firmware; use the console for now options CFE options CFE_CONSOLE options ALT_BREAK_TO_DEBUGGER makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols makeoptions MODULES_OVERRIDE="" options DDB options KDB options SCHED_4BSD #4BSD scheduler options INET #InterNETworking options NFSCL #Network Filesystem Client options NFS_ROOT #NFS usable as /, requires NFSCL options PSEUDOFS #Pseudo-filesystem framework options _KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions # Debugging for use in -current #options DEADLKRES options INVARIANTS options INVARIANT_SUPPORT #options BUS_DEBUG #makeoptions BUS_DEBUG device siba # Sonics SiliconBackplane device pci # siba_pcib # device bfe # XXX will build both pci and siba # device miibus # attachments # pci devices # notyet: #device ath # in pci slot #device ath_pci # Atheros pci/cardbus glue #device ath_hal # pci chip support #options AH_SUPPORT_AR5416 # enable AR5416 tx/rx descriptors options USB_DEBUG # enable debug msgs device usb # USB Bus (required) device uhci # UHCI PCI->USB interface device ehci # EHCI PCI->USB interface (USB 2.0) # need to teach the code to ignore the bridge.... # XXX notyet; need to be auto probed children of siba_cc. #device uart device loop device ether device md