SENTRY5 revision 215270
1# 2# $FreeBSD: head/sys/mips/conf/SENTRY5 215270 2010-11-13 22:34:12Z imp $ 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 27ident SENTRY5 28 29# XXX only siba should be hardwired for now; we will use 30# bus enumeration there 31hints "SENTRY5.hints" 32 33# sentry5 normally ships with cfe firmware; use the console for now 34options CFE 35options CFE_CONSOLE 36options ALT_BREAK_TO_DEBUGGER 37 38makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols 39makeoptions MODULES_OVERRIDE="" 40 41options DDB 42options KDB 43 44options SCHED_4BSD #4BSD scheduler 45options INET #InterNETworking 46options NFSCLIENT #Network Filesystem Client 47options NFS_ROOT #NFS usable as /, requires NFSCLIENT 48options PSEUDOFS #Pseudo-filesystem framework 49options _KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions 50 51# Debugging for use in -current 52#options DEADLKRES 53options INVARIANTS 54options INVARIANT_SUPPORT 55 56#options BUS_DEBUG 57#makeoptions BUS_DEBUG 58 59device siba # Sonics SiliconBackplane 60device pci # siba_pcib 61 62# device bfe # XXX will build both pci and siba 63# device miibus # attachments 64 65# pci devices 66# notyet: 67#device ath # in pci slot 68#device ath_hal # pci chip support 69#options AH_SUPPORT_AR5416 # enable AR5416 tx/rx descriptors 70 71options USB_DEBUG # enable debug msgs 72device usb # USB Bus (required) 73device uhci # UHCI PCI->USB interface 74device ehci # EHCI PCI->USB interface (USB 2.0) 75 76# need to teach the code to ignore the bridge.... 77 78 79# XXX notyet; need to be auto probed children of siba_cc. 80#device uart 81 82device loop 83device ether 84device md 85