Problems in building a kernel for a minimal 8240 board

Sat Jul 8 06:10:04 EST 2000

Hello,  thanks to all those good folks who contribute expert advice to this mail list.
I'm sure it is very much appreciated by those of us who are less knowledgeable and seek
help.

I'm trying to build a kernel for a custom MPC8240 board using the MontaVista
Sandpoint-8240  2.2.14 source tree as a starting point.  I'm using the MontaVista CDK
toolset running on RH Linux 6.2 which is the guest OS under VMWare running on NT4.
I'm also using EST's Probe for JTAG comm./debugging.

Our 8240 board is much simpler than the Sandpoint+Unity(8240) config, due to the fact that
it is an auxiliary board in our digital audio matrix mixer.   It's major components are:
An SODIMM slot for SDRAM with a 64MB module,  8MB flash, a PCI SCSI chip - SY53C895,  a
PCI Ethernet chip - Intel 82559,   there are existing Linux drivers for both these
chips/families.
There are no PCI slots, RTC, keyboard, ISA bridge, L2 cache RAM, video etc.
The board is basically functional:  PCI config cycles work, SDRAM works, test code runs
OK.

See below for the contents of my .config file, which 'matches' the autoconf.h file of
course.
I'm not sure if it is the closest match to what I need, but it is not sufficient of itself
to produce a clean build.
I've been trying to figure out what files I need to change to reflect the differences
between the Sandpoint and our board, and produce a clean build with my radically
simplified config.

I know the file:  arch/ppc/kernel/Makefile is causing me some grief, as almost all the
link problems I'm seeing are to do with kernel.o.   In addition to using my config
unsuccessfully,  I've successfully  built from the original sandpoint config

Here is the problematic command line:

powerpc-linux-ld  -r -o kernel.o ppc_ksyms.o setup.o chrp_setup.o prep_setup.o entry.o
traps.o irq.o idle.o
time.o process.o signal.o syscalls.o misc.o bitops.o ptrace.o align.o ppc_htab.o
semaphore.o hashtable.o pci
.o prep_time.o pmac_time.o chrp_time.o pmac_setup.o pmac_support.o prep_pci.o pmac_pci.o
chrp_pci.o residual
.o prom.o open_pic.o feature.o prep_nvram.o i8259.o pmac_pic.o indirect_pci.o gemini_pci.o
gemini_prom.o gem
ini_setup.o sandpoint_pci.o sandpoint_setup.

A major question I have in both cases is:   why is pmac stuff in there?
Also linked into the kernel are 5 files to do with pci,  why?   For one thing, I thought
prep and chrp were mutually exclusive hardware configurations.   Also, there is no i8259
on the sandpoint board!?!   And why the gemini stuff?

This causes problems when the config is changed/simplified.  And I've tried various
combinations of O_OBJS items with no joy.   There is a lot of interdependencies of
function calls amongst these files.   I've started to explore some of the source files,
but am so far bewildered on what to specify for a minimal obj file list that will link OK.

There are some source file changes I'll have to make too I think, sandpoint_setup.c for
one.  Does anyone have any tips on what other files I'll have to modify?

If I had some idea of the history of the sandpoint-8240 porting process, it would probably
help a lot.
At the moment I'm concentrating on generating and analyzing cross reference information to
better understand the functional interdependencies in kernel.o.

Thanks in advance for any advice.

Ron Bianco
Computer Systems Technologist
Level Control Systems
email: ronb at junction.net
phone: 250-549-2558 Ext 8
web:  www.lcsaudio.com

#
# Automatically generated by make menuconfig: don't edit
#

#
# Platform support
#
CONFIG_PPC=y
CONFIG_6xx=y
# CONFIG_PPC64 is not set
# CONFIG_8xx is not set
# CONFIG_PMAC is not set
# CONFIG_PREP is not set
# CONFIG_CHRP is not set
# CONFIG_ALL_PPC is not set
# CONFIG_GEMINI is not set
CONFIG_SANDPOINT=y
# CONFIG_APUS is not set
# CONFIG_MBX is not set
# CONFIG_SMP is not set
CONFIG_MACH_SPECIFIC=y
CONFIG_6xx=y
#
# General setup
#
# CONFIG_EXPERIMENTAL is not set
# CONFIG_MODULES is not set
CONFIG_PCI=y
CONFIG_CHRP_MAPB=y
CONFIG_NET=y
CONFIG_SYSCTL=y
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_BINFMT_ELF=y
CONFIG_KERNEL_ELF=y
CONFIG_BINFMT_MISC=y
# CONFIG_PARPORT is not set
# CONFIG_VGA_CONSOLE is not set
# CONFIG_FB is not set
# CONFIG_PMAC_PBOOK is not set
# CONFIG_MAC_KEYBOARD is not set
# CONFIG_MAC_FLOPPY is not set
# CONFIG_MAC_SERIAL is not set
# CONFIG_PROC_DEVICETREE is not set
# CONFIG_TOTALMP is not set
# CONFIG_BOOTX_TEXT is not set
# CONFIG_MOTOROLA_HOTSWAP is not set

#
# Plug and Play configuration
#
# CONFIG_PNP is not set
# CONFIG_ISAPNP is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_IDE is not set
# CONFIG_BLK_DEV_HD_ONLY is not set
# CONFIG_BLK_CPQ_DA is not set
CONFIG_BLK_DEV_LOOP=y
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_MD is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_INITRD=y
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE is not set
# CONFIG_BLK_DEV_IDE_MODES is not set
# CONFIG_BLK_DEV_HD is not set

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_MMAP is not set
# CONFIG_NETLINK is not set
# CONFIG_NETFILTER is not set
# CONFIG_FILTER is not set
CONFIG_UNIX=y
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
# CONFIG_IP_ROUTER is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_ALIAS is not set
# CONFIG_SYN_COOKIES is not set
CONFIG_SKB_LARGE=y
# CONFIG_IPX is not set
# CONFIG_ATALK is not set

#
# SCSI support
#
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
CONFIG_BLK_DEV_SR=y
CONFIG_BLK_DEV_SR_VENDOR=y
# CONFIG_CHR_DEV_SG is not set
# CONFIG_SCSI_MULTI_LUN is not set
CONFIG_SCSI_CONSTANTS=y
# CONFIG_SCSI_LOGGING is not set

#
# SCSI low-level drivers
#
# CONFIG_SCSI_7000FASST is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA152X is not set
# CONFIG_SCSI_AHA1542 is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_MEGARAID is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_EATA_DMA is not set
# CONFIG_SCSI_EATA_PIO is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_NCR53C406A is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_NCR53C7xx is not set
# CONFIG_SCSI_NCR53C8XX is not set
CONFIG_SCSI_SYM53C8XX=y
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
# CONFIG_SCSI_NCR53C8XX_PROFILE is not set
# CONFIG_SCSI_NCR53C8XX_IOMAPPED is not set
# CONFIG_SCSI_NCR53C8XX_PQS_PDS is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_PCI2000 is not set
# CONFIG_SCSI_PCI2220I is not set
# CONFIG_SCSI_PSI240I is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_ISP is not set
# CONFIG_SCSI_QLOGIC_FC is not set
# CONFIG_SCSI_SEAGATE is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_U14_34F is not set
# CONFIG_SCSI_ULTRASTOR is not set
# CONFIG_SCSI_MESH is not set
# CONFIG_SCSI_MAC53C94 is not set

#
# Network device support
#
CONFIG_NETDEVICES=y

#
# ARCnet devices
#
# CONFIG_ARCNET is not set
# CONFIG_DUMMY is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_SB1000 is not set

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
# CONFIG_MACE is not set
# CONFIG_BMAC is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
# CONFIG_NET_ISA is not set
CONFIG_NET_EISA=y
# CONFIG_PCNET32 is not set
# CONFIG_APRICOT is not set
# CONFIG_CS89x0 is not set
# CONFIG_DE4X5 is not set
# CONFIG_DEC_ELCP is not set
# CONFIG_DGRS is not set
CONFIG_EEXPRESS_PRO100=y
# CONFIG_NE2K_PCI is not set
# CONFIG_TLAN is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_NET_POCKET is not set
# CONFIG_FDDI is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
# CONFIG_NET_RADIO is not set

#
# Token ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set

#
# Wan interfaces
#
# CONFIG_HOSTESS_SV11 is not set
# CONFIG_COSA is not set
# CONFIG_SEALEVEL_4021 is not set
# CONFIG_DLCI is not set
# CONFIG_WAN_DRIVERS is not set
# CONFIG_LAPBETHER is not set
# CONFIG_X25_ASY is not set

#
# Amateur Radio support
#
# CONFIG_HAMRADIO is not set

#
# ISDN subsystem
#
# CONFIG_ISDN is not set

#
# Old CD-ROM drivers (not SCSI, not IDE)
#
# CONFIG_CD_NO_IDESCSI is not set

#
# Console drivers
#

#
# Character devices
#
# CONFIG_VT is not set
# CONFIG_SERIAL is not set
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256

#
# Mice
#
# CONFIG_BUSMOUSE is not set
# CONFIG_MOUSE is not set
# CONFIG_QIC02_TAPE is not set
# CONFIG_WATCHDOG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set

#
# Video For Linux
#
# CONFIG_VIDEO_DEV is not set

#
# Joystick support
#
# CONFIG_JOYSTICK is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set

#
# USB drivers - not for the faint of heart
#
# CONFIG_USB is not set

#
# Filesystems
#
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_FAT_FS is not set
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
# CONFIG_VFAT_FS is not set
CONFIG_ISO9660_FS=y
# CONFIG_JOLIET is not set
# CONFIG_MINIX_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
CONFIG_DEVPTS_FS=y
CONFIG_ROMFS_FS=y
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set

#
# Network File Systems
#
# CONFIG_CODA_FS is not set
CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
# CONFIG_SMB_FS is not set
# CONFIG_NCP_FS is not set

#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
# CONFIG_OSF_PARTITION is not set
# CONFIG_MAC_PARTITION is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_BSD_DISKLABEL is not set
# CONFIG_SOLARIS_X86_PARTITION is not set
# CONFIG_UNIXWARE_DISKLABEL is not set
# CONFIG_SGI_PARTITION is not set
# CONFIG_SUN_PARTITION is not set
# CONFIG_AMIGA_PARTITION is not set
# CONFIG_ATARI_PARTITION is not set
# CONFIG_ACORN_PARTITION is not set
# CONFIG_NLS is not set

#
# Sound
#
# CONFIG_SOUND is not set

#
# Kernel hacking
#
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_KGDB is not set
# CONFIG_XMON is not set

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