freebsd-dev/sys/mips/conf/BCM
Landon J. Fuller e15461c7e9 mips/broadcom: Implement CFE-based EARLY_PRINTF support.
This adds support for EARLY_PRINTF via the CFE console; the aim is to
provide a fix for the otherwise cyclic dependency between PMU discovery
and console printf/DELAY:

- We need to parse the bhnd(4) core table to determine the address (and
  type) of the PMU/PLL registers and calculate the CPU clock frequency.
- The core table parsing code will emit a printf() if a parse error is
  hit.
- Safely calling printf() without EARLY_PRINTF requires a working
  DELAY+cninit, which means we need the PMU.

Errors in core table parsing shouldn't happen, but lack of EARLY_PRINTF
makes debugging more difficult.

Approved by:	adrian (mentor)
Differential Revision:	https://reviews.freebsd.org/D7498
2016-08-17 20:24:14 +00:00

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#
# $FreeBSD$
#
# The Broadcom 470x/471x/535x series of processors and boards is very commonly
# used in COTS hardware including the ASUS RT-N12, RT-N16, RT-N53.
#
ident BCM
cpu CPU_MIPS74K
hints "BCM.hints"
include "../broadcom/std.broadcom"
# ships with cfe firmware
options CFE
device cfe
options ALT_BREAK_TO_DEBUGGER
options BREAK_TO_DEBUGGER
options BOOTVERBOSE=0
makeoptions TRAMPLOADADDR=0x80800000
makeoptions DEBUG="-g3" #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
options FFS #Berkeley Fast Filesystem
options SOFTUPDATES #Enable FFS soft updates support
options UFS_ACL #Support for access control lists
options UFS_DIRHASH #Improve performance on big directories
device geom_uzip
options GEOM_UZIP
options GEOM_LABEL # Providers labelization.
options ROOTDEVNAME=\"ufs:ufs/FBSD\" # assumes FW built by
# freebsd-build-wifi
# Debugging for use in -current
#options DEADLKRES
options INVARIANTS
options INVARIANT_SUPPORT
#options BHND_LOGLEVEL=BHND_DEBUG_LEVEL
#options BUS_DEBUG
#makeoptions BUS_DEBUG
options EARLY_PRINTF
#options VERBOSE_SYSINIT
#makeoptions VERBOSE_SYSINIT
# bhnd(4)
device bhnd
device bcma # bcma backplane
device bcma_nexus
device pci
device bhnd_pcib # PCIe-G1 core
#device bgmac # Broadcom GMAC - not yet
device mdio
#Flash
device spibus
device mx25l # Serial Flash
device cfi # Parallel Flash
device cfid
#UART
device uart
#Base
device loop
device ether
device random
device md
#Performance
#options HWPMC_HOOKS
#device hwpmc
#device hwpmc_mips74k
#Ethernet
# device bfe # XXX will build both pci and siba
device miibus # attachments
# pci devices
# USB is not yet ready
#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)