SENTRY5 revision 182738
1178171Simp# 2178171Simp# $FreeBSD: head/sys/mips/conf/SENTRY5 182738 2008-09-03 18:49:54Z obrien $ 3178171Simp# 4178171Simp# The Broadcom Sentry5 series of processors and boards is very commonly 5178171Simp# used in COTS hardware including the Netgear WGT634U. 6178171Simp# 7178171Simp# Some tweaks are needed for use with this platform: 8178171Simp# 9178171Simp# * CFE firmware's ELF loader expects an ELF kernel which is linked so as 10178171Simp# not to contain offsets in PT_LOAD which point behind the actual offset 11178171Simp# of that PT header. FreeBSD normally links the first PT_LOAD header to 12178171Simp# begin at offset 0. 13178171Simp# 14178171Simp# * Broadcom's support package for the internal bus, the Sonics 15178171Simp# SiliconBackplane, needs to be integrated to detect and probe hardware 16178171Simp# correctly. 17178171Simp# 18178171Simp# * The clock needs to be calibrated correctly, so that DELAY() may work. 19178171Simp# One problem with this is that the low-level printf() routine calls DELAY(), 20178171Simp# which currently causes divide-by-zero trap 21178171Simp# 22178171Simp# * The Broadcom CPUs have no FPU. Attempting to detect one by reading CP1's 23178171Simp# status register causes an unhandled boot-time exception. An FPU emulator 24178171Simp# will be necessary to support multi-user boot. 25178171Simp# 26178171Simp 27178171Simpmachine mips 28178171Simpident SENTRY5 29178171Simpcpu CPU_MIPS4KC 30178171Simpoptions CPU_NOFPU 31178171Simpoptions ISA_MIPS32 32178171Simpoptions CPU_SENTRY5 # XXX should this be a 33178171Simp # sub-cpu option? 34178171Simp 35178171Simp# XXX only siba should be hardwired for now; we will use 36178171Simp# bus enumeration there 37182738Sobrienfiles "../sentry5/files.sentry5" 38178171Simphints "SENTRY5.hints" 39178171Simp 40178171Simp# sentry5 normally ships with cfe firmware; use the console for now 41178171Simpoptions CFE 42178171Simpoptions CFE_CONSOLE 43178171Simpoptions ALT_BREAK_TO_DEBUGGER 44178171Simp 45178171Simp# cfe loader expects kernel at 0x80001000 for mips32 w/o backwards 46178171Simp# offsets in the linked elf image (see ldscript hack) 47178171Simp# XXX can we conditionalize the linker stuff on options CFE? 48178171Simpoptions KERNVIRTADDR=0x80001000 49178171Simp 50178171Simp#makeoptions ARCH_FLAGS=-march=mips32 51178171Simpmakeoptions MIPS_LITTLE_ENDIAN=defined 52178171Simpmakeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols 53178171Simpmakeoptions MODULES_OVERRIDE="" 54178171Simp 55178171Simpoptions DDB 56178171Simpoptions KDB 57178171Simp 58178171Simpoptions SCHED_4BSD #4BSD scheduler 59178171Simpoptions INET #InterNETworking 60178171Simpoptions NFSCLIENT #Network Filesystem Client 61178171Simpoptions NFS_ROOT #NFS usable as /, requires NFSCLIENT 62178171Simpoptions PSEUDOFS #Pseudo-filesystem framework 63178171Simpoptions _KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions 64178171Simp 65178171Simp# Debugging for use in -current 66178171Simpoptions INVARIANTS 67178171Simpoptions INVARIANT_SUPPORT 68178171Simp 69178171Simp#options BUS_DEBUG 70178171Simp#makeoptions BUS_DEBUG 71178171Simp 72178171Simpdevice siba # Sonics SiliconBackplane 73178171Simpdevice pci # siba_pcib 74178171Simp 75178171Simpdevice bfe # XXX will build both pci and siba 76178171Simpdevice miibus # attachments 77178171Simp 78178171Simp# pci devices 79178171Simp# notyet: 80178171Simp#device ath # in pci slot 81178171Simp#device ath_hal # in pci slot 82178171Simp 83178171Simpdevice usb # USB Bus (required) 84178171Simpdevice uhci # UHCI PCI->USB interface 85178171Simpdevice ehci # EHCI PCI->USB interface (USB 2.0) 86178171Simp 87178171Simp# need to teach the code to ignore the bridge.... 88178171Simp 89178171Simp 90178171Simp# XXX notyet; need to be auto probed children of siba_cc. 91178171Simp#device uart 92178171Simp#device uart_ns8250 93178171Simp 94178171Simpdevice loop 95178171Simpdevice ether 96178171Simpdevice md 97178171Simpdevice mem 98