SENTRY5 revision 178171 
1#
2# $FreeBSD: head/sys/mips/conf/SENTRY5 178171 2008-04-13 07:07:57Z imp $
3# $P4: //depot/projects/mips2-jnpr/src/sys/mips/conf/SENTRY5#2 $
4#
5# The Broadcom Sentry5 series of processors and boards is very commonly
6# used in COTS hardware including the Netgear WGT634U.
7#
8# Some tweaks are needed for use with this platform:
9#
10# * CFE firmware's ELF loader expects an ELF kernel which is linked so as
11#   not to contain offsets in PT_LOAD which point behind the actual offset
12#   of that PT header. FreeBSD normally links the first PT_LOAD header to
13#   begin at offset 0.
14#
15# * Broadcom's support package for the internal bus, the Sonics
16#   SiliconBackplane, needs to be integrated to detect and probe hardware
17#   correctly.
18#
19# * The clock needs to be calibrated correctly, so that DELAY() may work.
20#   One problem with this is that the low-level printf() routine calls DELAY(),
21#   which currently causes divide-by-zero trap
22#
23# * The Broadcom CPUs have no FPU. Attempting to detect one by reading CP1's
24#   status register causes an unhandled boot-time exception. An FPU emulator
25#   will be necessary to support multi-user boot.
26#
27
28machine		mips
29ident		SENTRY5
30cpu		CPU_MIPS4KC
31options		CPU_NOFPU
32options 	ISA_MIPS32
33options		CPU_SENTRY5			# XXX should this be a
34						# sub-cpu option?
35
36# XXX only siba should be hardwired for now; we will use
37# bus enumeration there
38files		"../mips32/sentry5/files.sentry5"
39hints		"SENTRY5.hints"
40
41# sentry5 normally ships with cfe firmware; use the console for now
42options		CFE
43options		CFE_CONSOLE
44options		ALT_BREAK_TO_DEBUGGER
45
46# cfe loader expects kernel at 0x80001000 for mips32 w/o backwards
47# offsets in the linked elf image (see ldscript hack)
48# XXX can we conditionalize the linker stuff on options CFE?
49options		KERNVIRTADDR=0x80001000
50
51#makeoptions	ARCH_FLAGS=-march=mips32
52makeoptions	MIPS_LITTLE_ENDIAN=defined
53makeoptions	DEBUG=-g		#Build kernel with gdb(1) debug symbols
54makeoptions	MODULES_OVERRIDE=""
55
56options		DDB
57options		KDB
58
59options		SCHED_4BSD		#4BSD scheduler
60options		INET			#InterNETworking
61options		NFSCLIENT		#Network Filesystem Client
62options		NFS_ROOT		#NFS usable as /, requires NFSCLIENT
63options		PSEUDOFS		#Pseudo-filesystem framework
64options		_KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions
65
66# Debugging for use in -current
67options		INVARIANTS
68options		INVARIANT_SUPPORT
69
70#options		BUS_DEBUG
71#makeoptions	BUS_DEBUG
72
73device		siba			# Sonics SiliconBackplane
74device		pci			# siba_pcib
75
76device		bfe			# XXX will build both pci and siba
77device		miibus			# attachments
78
79# pci devices
80# notyet:
81#device		ath			# in pci slot
82#device		ath_hal			# in pci slot
83
84device		usb			# USB Bus (required)
85device		uhci			# UHCI PCI->USB interface
86device		ehci			# EHCI PCI->USB interface (USB 2.0)
87
88# need to teach the code to ignore the bridge....
89
90
91# XXX notyet; need to be auto probed children of siba_cc.
92#device		uart
93#device		uart_ns8250
94
95device		genclock
96device		loop
97device		ether
98device		md
99device		mem
100