SENTRY5 revision 216671
1# 2# $FreeBSD: head/sys/mips/conf/SENTRY5 216671 2010-12-22 19:01:48Z nwhitehorn $ 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" 32include "../sentry5/std.sentry5" 33 34# sentry5 normally ships with cfe firmware; use the console for now 35options CFE 36options CFE_CONSOLE 37options ALT_BREAK_TO_DEBUGGER 38 39makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols 40makeoptions MODULES_OVERRIDE="" 41 42options DDB 43options KDB 44 45options SCHED_4BSD #4BSD scheduler 46options INET #InterNETworking 47options NFSCLIENT #Network Filesystem Client 48options NFS_ROOT #NFS usable as /, requires NFSCLIENT 49options PSEUDOFS #Pseudo-filesystem framework 50options _KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions 51 52# Debugging for use in -current 53#options DEADLKRES 54options INVARIANTS 55options INVARIANT_SUPPORT 56 57#options BUS_DEBUG 58#makeoptions BUS_DEBUG 59 60device siba # Sonics SiliconBackplane 61device pci # siba_pcib 62 63# device bfe # XXX will build both pci and siba 64# device miibus # attachments 65 66# pci devices 67# notyet: 68#device ath # in pci slot 69#device ath_hal # pci chip support 70#options AH_SUPPORT_AR5416 # enable AR5416 tx/rx descriptors 71 72options USB_DEBUG # enable debug msgs 73device usb # USB Bus (required) 74device uhci # UHCI PCI->USB interface 75device ehci # EHCI PCI->USB interface (USB 2.0) 76 77# need to teach the code to ignore the bridge.... 78 79 80# XXX notyet; need to be auto probed children of siba_cc. 81#device uart 82 83device loop 84device ether 85device md 86