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Commit 07119621 authored by Ralf Baechle's avatar Ralf Baechle Committed by Linus Torvalds
Browse files

[PATCH] mips: add support for Qemu system architecture 

Add support for the virtual MIPS system that is emulated by Qemu.  See
http://www.linux-mips.org/wiki/Qemu

 for a detailed current status.

Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 7901c799

arch/mips/Kconfig

+18 −0
Original line number Original line Diff line number Diff line
@@ -445,6 +445,24 @@ config DDB5477_BUS_FREQUENCY 
	depends on DDB5477

	depends on DDB5477

	default 0

	default 0





config QEMU

	bool "Support for Qemu"

	select DMA_COHERENT

	select GENERIC_ISA_DMA

	select HAVE_STD_PC_SERIAL_PORT

	select I8259

	select ISA

	select SWAP_IO_SPACE

	select SYS_SUPPORTS_32BIT_KERNEL

	select SYS_SUPPORTS_BIG_ENDIAN

	help

	 Qemu is a software emulator which among other architectures also

	 can simulate a MIPS32 4Kc system.  This patch adds support for the

	 system architecture that currently is being simulated by Qemu.  It

	 will eventually be removed again when Qemu has the capability to

	 simulate actual MIPS hardware platforms.  More information on Qemu

	 can be found at http://www.linux-mips.org/wiki/Qemu.



config SGI_IP22

config SGI_IP22

	bool "Support for SGI IP22 (Indy/Indigo2)"

	bool "Support for SGI IP22 (Indy/Indigo2)"

	select ARC

	select ARC

arch/mips/Makefile

+6 −0
Original line number Original line Diff line number Diff line
@@ -423,6 +423,12 @@ core-$(CONFIG_PMC_YOSEMITE) += arch/mips/pmc-sierra/yosemite/ 
cflags-$(CONFIG_PMC_YOSEMITE)	+= -Iinclude/asm-mips/mach-yosemite

cflags-$(CONFIG_PMC_YOSEMITE)	+= -Iinclude/asm-mips/mach-yosemite

load-$(CONFIG_PMC_YOSEMITE)	+= 0xffffffff80100000

load-$(CONFIG_PMC_YOSEMITE)	+= 0xffffffff80100000





# Qemu simulating MIPS32 4Kc

#

core-$(CONFIG_QEMU)		+= arch/mips/qemu/

cflags-$(CONFIG_QEMU)		+= -Iinclude/asm-mips/mach-qemu

load-$(CONFIG_QEMU)		+= 0xffffffff80010000



#

#

# Momentum Ocelot-3

# Momentum Ocelot-3

#

#

arch/mips/configs/qemu_defconfig

0 → 100644
+655 −0
Original line number Original line Diff line number Diff line 
#

# Automatically generated make config: don't edit

# Linux kernel version: 2.6.13-rc6

# Mon Aug  8 11:49:54 2005

#

CONFIG_MIPS=y



#

# Code maturity level options

#

# CONFIG_EXPERIMENTAL is not set

CONFIG_CLEAN_COMPILE=y

CONFIG_BROKEN_ON_SMP=y

CONFIG_INIT_ENV_ARG_LIMIT=32



#

# General setup

#

CONFIG_LOCALVERSION=""

# CONFIG_SWAP is not set

# CONFIG_SYSVIPC is not set

# CONFIG_BSD_PROCESS_ACCT is not set

# CONFIG_SYSCTL is not set

# CONFIG_AUDIT is not set

# CONFIG_HOTPLUG is not set

CONFIG_KOBJECT_UEVENT=y

# CONFIG_IKCONFIG is not set

CONFIG_EMBEDDED=y

CONFIG_KALLSYMS=y

# CONFIG_KALLSYMS_EXTRA_PASS is not set

CONFIG_PRINTK=y

# CONFIG_BUG is not set

# CONFIG_BASE_FULL is not set

# CONFIG_FUTEX is not set

# CONFIG_EPOLL is not set

# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set

# CONFIG_SHMEM is not set

CONFIG_CC_ALIGN_FUNCTIONS=0

CONFIG_CC_ALIGN_LABELS=0

CONFIG_CC_ALIGN_LOOPS=0

CONFIG_CC_ALIGN_JUMPS=0

CONFIG_TINY_SHMEM=y

CONFIG_BASE_SMALL=1



#

# Loadable module support

#

# CONFIG_MODULES is not set



#

# Machine selection

#

# CONFIG_MIPS_MTX1 is not set

# CONFIG_MIPS_BOSPORUS is not set

# CONFIG_MIPS_PB1000 is not set

# CONFIG_MIPS_PB1100 is not set

# CONFIG_MIPS_PB1500 is not set

# CONFIG_MIPS_PB1550 is not set

# CONFIG_MIPS_PB1200 is not set

# CONFIG_MIPS_DB1000 is not set

# CONFIG_MIPS_DB1100 is not set

# CONFIG_MIPS_DB1500 is not set

# CONFIG_MIPS_DB1550 is not set

# CONFIG_MIPS_DB1200 is not set

# CONFIG_MIPS_MIRAGE is not set

# CONFIG_MIPS_COBALT is not set

# CONFIG_MACH_DECSTATION is not set

# CONFIG_MIPS_EV64120 is not set

# CONFIG_MIPS_EV96100 is not set

# CONFIG_MIPS_IVR is not set

# CONFIG_MIPS_ITE8172 is not set

# CONFIG_MACH_JAZZ is not set

# CONFIG_LASAT is not set

# CONFIG_MIPS_ATLAS is not set

# CONFIG_MIPS_MALTA is not set

# CONFIG_MIPS_SEAD is not set

# CONFIG_MOMENCO_JAGUAR_ATX is not set

# CONFIG_MOMENCO_OCELOT is not set

# CONFIG_MOMENCO_OCELOT_3 is not set

# CONFIG_MOMENCO_OCELOT_C is not set

# CONFIG_MOMENCO_OCELOT_G is not set

# CONFIG_MIPS_XXS1500 is not set

# CONFIG_PNX8550_V2PCI is not set

# CONFIG_PNX8550_JBS is not set

# CONFIG_DDB5074 is not set

# CONFIG_DDB5476 is not set

# CONFIG_DDB5477 is not set

# CONFIG_MACH_VR41XX is not set

# CONFIG_PMC_YOSEMITE is not set

CONFIG_QEMU=y

# CONFIG_SGI_IP22 is not set

# CONFIG_SGI_IP27 is not set

# CONFIG_SGI_IP32 is not set

# CONFIG_SIBYTE_SWARM is not set

# CONFIG_SIBYTE_SENTOSA is not set

# CONFIG_SIBYTE_RHONE is not set

# CONFIG_SIBYTE_CARMEL is not set

# CONFIG_SIBYTE_PTSWARM is not set

# CONFIG_SIBYTE_LITTLESUR is not set

# CONFIG_SIBYTE_CRHINE is not set

# CONFIG_SIBYTE_CRHONE is not set

# CONFIG_SNI_RM200_PCI is not set

# CONFIG_TOSHIBA_JMR3927 is not set

# CONFIG_TOSHIBA_RBTX4927 is not set

# CONFIG_TOSHIBA_RBTX4938 is not set

CONFIG_RWSEM_GENERIC_SPINLOCK=y

CONFIG_GENERIC_CALIBRATE_DELAY=y

CONFIG_HAVE_DEC_LOCK=y

CONFIG_DMA_COHERENT=y

CONFIG_GENERIC_ISA_DMA=y

CONFIG_I8259=y

CONFIG_CPU_BIG_ENDIAN=y

# CONFIG_CPU_LITTLE_ENDIAN is not set

CONFIG_SYS_SUPPORTS_BIG_ENDIAN=y

CONFIG_SWAP_IO_SPACE=y

CONFIG_MIPS_L1_CACHE_SHIFT=5

CONFIG_HAVE_STD_PC_SERIAL_PORT=y



#

# CPU selection

#

# CONFIG_CPU_MIPS32_R1 is not set

# CONFIG_CPU_MIPS32_R2 is not set

# CONFIG_CPU_MIPS64_R1 is not set

# CONFIG_CPU_MIPS64_R2 is not set

# CONFIG_CPU_R3000 is not set

# CONFIG_CPU_TX39XX is not set

# CONFIG_CPU_VR41XX is not set

# CONFIG_CPU_R4300 is not set

CONFIG_CPU_R4X00=y

# CONFIG_CPU_TX49XX is not set

# CONFIG_CPU_R5000 is not set

# CONFIG_CPU_R5432 is not set

# CONFIG_CPU_R6000 is not set

# CONFIG_CPU_NEVADA is not set

# CONFIG_CPU_R8000 is not set

# CONFIG_CPU_R10000 is not set

# CONFIG_CPU_RM7000 is not set

# CONFIG_CPU_RM9000 is not set

# CONFIG_CPU_SB1 is not set

CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y

CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y

CONFIG_CPU_SUPPORTS_64BIT_KERNEL=y



#

# Kernel type

#

CONFIG_32BIT=y

# CONFIG_64BIT is not set

CONFIG_PAGE_SIZE_4KB=y

# CONFIG_PAGE_SIZE_8KB is not set

# CONFIG_PAGE_SIZE_16KB is not set

# CONFIG_PAGE_SIZE_64KB is not set

# CONFIG_MIPS_MT is not set

# CONFIG_64BIT_PHYS_ADDR is not set

# CONFIG_CPU_ADVANCED is not set

CONFIG_CPU_HAS_LLSC=y

CONFIG_CPU_HAS_LLDSCD=y

CONFIG_CPU_HAS_SYNC=y

CONFIG_ARCH_FLATMEM_ENABLE=y

CONFIG_FLATMEM=y

CONFIG_FLAT_NODE_MEM_MAP=y

CONFIG_PREEMPT_NONE=y

# CONFIG_PREEMPT_VOLUNTARY is not set

# CONFIG_PREEMPT is not set



#

# Bus options (PCI, PCMCIA, EISA, ISA, TC)

#

CONFIG_ISA=y

CONFIG_MMU=y



#

# PCCARD (PCMCIA/CardBus) support

#

# CONFIG_PCCARD is not set



#

# PCI Hotplug Support

#



#

# Executable file formats

#

CONFIG_BINFMT_ELF=y

# CONFIG_BINFMT_MISC is not set

CONFIG_TRAD_SIGNALS=y



#

# Networking

#

CONFIG_NET=y



#

# Networking options

#

CONFIG_PACKET=y

CONFIG_PACKET_MMAP=y

CONFIG_UNIX=y

# CONFIG_NET_KEY is not set

CONFIG_INET=y

CONFIG_IP_MULTICAST=y

# CONFIG_IP_ADVANCED_ROUTER is not set

CONFIG_IP_FIB_HASH=y

CONFIG_IP_PNP=y

CONFIG_IP_PNP_DHCP=y

CONFIG_IP_PNP_BOOTP=y

# CONFIG_IP_PNP_RARP is not set

# CONFIG_NET_IPIP is not set

# CONFIG_NET_IPGRE is not set

# CONFIG_IP_MROUTE is not set

# CONFIG_SYN_COOKIES is not set

# CONFIG_INET_AH is not set

# CONFIG_INET_ESP is not set

# CONFIG_INET_IPCOMP is not set

# CONFIG_INET_TUNNEL is not set

CONFIG_IP_TCPDIAG=y

# CONFIG_IP_TCPDIAG_IPV6 is not set

# CONFIG_TCP_CONG_ADVANCED is not set

CONFIG_TCP_CONG_BIC=y

# CONFIG_IPV6 is not set

# CONFIG_NETFILTER is not set

# CONFIG_BRIDGE is not set

# CONFIG_VLAN_8021Q is not set

# CONFIG_DECNET is not set

# CONFIG_LLC2 is not set

# CONFIG_IPX is not set

# CONFIG_ATALK is not set

# CONFIG_NET_SCHED is not set

# CONFIG_NET_CLS_ROUTE is not set



#

# Network testing

#

# CONFIG_HAMRADIO is not set

# CONFIG_IRDA is not set

# CONFIG_BT is not set



#

# Device Drivers

#



#

# Generic Driver Options

#

CONFIG_STANDALONE=y

# CONFIG_PREVENT_FIRMWARE_BUILD is not set

# CONFIG_FW_LOADER is not set



#

# Memory Technology Devices (MTD)

#

# CONFIG_MTD is not set



#

# Parallel port support

#

# CONFIG_PARPORT is not set



#

# Plug and Play support

#

# CONFIG_PNP is not set



#

# Block devices

#

# CONFIG_BLK_DEV_FD is not set

# CONFIG_BLK_DEV_COW_COMMON is not set

# CONFIG_BLK_DEV_LOOP is not set

# CONFIG_BLK_DEV_NBD is not set

# CONFIG_BLK_DEV_RAM is not set

CONFIG_BLK_DEV_RAM_COUNT=16

CONFIG_INITRAMFS_SOURCE=""

# CONFIG_CDROM_PKTCDVD is not set



#

# IO Schedulers

#

CONFIG_IOSCHED_NOOP=y

# CONFIG_IOSCHED_AS is not set

# CONFIG_IOSCHED_DEADLINE is not set

# CONFIG_IOSCHED_CFQ is not set

# CONFIG_ATA_OVER_ETH is not set



#

# ATA/ATAPI/MFM/RLL support

#

# CONFIG_IDE is not set



#

# SCSI device support

#

# CONFIG_SCSI is not set



#

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

#

# CONFIG_CD_NO_IDESCSI is not set



#

# Multi-device support (RAID and LVM)

#

# CONFIG_MD is not set



#

# Fusion MPT device support

#

# CONFIG_FUSION is not set



#

# IEEE 1394 (FireWire) support

#



#

# I2O device support

#



#

# Network device support

#

CONFIG_NETDEVICES=y

# CONFIG_DUMMY is not set

# CONFIG_BONDING is not set

# CONFIG_EQUALIZER is not set

# CONFIG_TUN is not set



#

# ARCnet devices

#

# CONFIG_ARCNET is not set



#

# Ethernet (10 or 100Mbit)

#

CONFIG_NET_ETHERNET=y

CONFIG_MII=y

# CONFIG_NET_VENDOR_3COM is not set

# CONFIG_NET_VENDOR_SMC is not set

# CONFIG_NET_VENDOR_RACAL is not set

# CONFIG_DEPCA is not set

# CONFIG_HP100 is not set

CONFIG_NET_ISA=y

# CONFIG_E2100 is not set

# CONFIG_EWRK3 is not set

# CONFIG_EEXPRESS is not set

# CONFIG_EEXPRESS_PRO is not set

# CONFIG_HPLAN_PLUS is not set

# CONFIG_HPLAN is not set

# CONFIG_LP486E is not set

# CONFIG_ETH16I is not set

CONFIG_NE2000=y

# CONFIG_NET_PCI is not set

# CONFIG_NET_POCKET is not set



#

# Ethernet (1000 Mbit)

#



#

# Ethernet (10000 Mbit)

#



#

# Token Ring devices

#

# CONFIG_TR is not set



#

# Wireless LAN (non-hamradio)

#

# CONFIG_NET_RADIO is not set



#

# Wan interfaces

#

# CONFIG_WAN is not set

# CONFIG_PPP is not set

# CONFIG_SLIP is not set

# CONFIG_NETPOLL is not set

# CONFIG_NET_POLL_CONTROLLER is not set



#

# ISDN subsystem

#

# CONFIG_ISDN is not set



#

# Telephony Support

#

# CONFIG_PHONE is not set



#

# Input device support

#

CONFIG_INPUT=y



#

# Userland interfaces

#

# CONFIG_INPUT_MOUSEDEV is not set

# CONFIG_INPUT_JOYDEV is not set

# CONFIG_INPUT_TSDEV is not set

# CONFIG_INPUT_EVDEV is not set

# CONFIG_INPUT_EVBUG is not set



#

# Input Device Drivers

#

# CONFIG_INPUT_KEYBOARD is not set

# CONFIG_INPUT_MOUSE is not set

# CONFIG_INPUT_JOYSTICK is not set

# CONFIG_INPUT_TOUCHSCREEN is not set

# CONFIG_INPUT_MISC is not set



#

# Hardware I/O ports

#

# CONFIG_SERIO is not set

# CONFIG_GAMEPORT is not set



#

# Character devices

#

CONFIG_VT=y

CONFIG_VT_CONSOLE=y

CONFIG_HW_CONSOLE=y

# CONFIG_SERIAL_NONSTANDARD is not set



#

# Serial drivers

#

CONFIG_SERIAL_8250=y

CONFIG_SERIAL_8250_CONSOLE=y

CONFIG_SERIAL_8250_NR_UARTS=4

# CONFIG_SERIAL_8250_EXTENDED is not set



#

# Non-8250 serial port support

#

CONFIG_SERIAL_CORE=y

CONFIG_SERIAL_CORE_CONSOLE=y

# CONFIG_UNIX98_PTYS is not set

# CONFIG_LEGACY_PTYS is not set



#

# IPMI

#

# CONFIG_IPMI_HANDLER is not set



#

# Watchdog Cards

#

# CONFIG_WATCHDOG is not set

# CONFIG_RTC is not set

# CONFIG_GEN_RTC is not set

# CONFIG_DTLK is not set

# CONFIG_R3964 is not set



#

# Ftape, the floppy tape device driver

#

# CONFIG_RAW_DRIVER is not set



#

# TPM devices

#



#

# I2C support

#

# CONFIG_I2C is not set

# CONFIG_I2C_SENSOR is not set



#

# Dallas's 1-wire bus

#

# CONFIG_W1 is not set



#

# Hardware Monitoring support

#

# CONFIG_HWMON is not set



#

# Misc devices

#



#

# Multimedia devices

#

# CONFIG_VIDEO_DEV is not set



#

# Digital Video Broadcasting Devices

#

# CONFIG_DVB is not set



#

# Graphics support

#

# CONFIG_FB is not set



#

# Console display driver support

#

CONFIG_VGA_CONSOLE=y

# CONFIG_MDA_CONSOLE is not set

CONFIG_DUMMY_CONSOLE=y



#

# Sound

#

# CONFIG_SOUND is not set



#

# USB support

#

# CONFIG_USB_ARCH_HAS_HCD is not set

# CONFIG_USB_ARCH_HAS_OHCI is not set



#

# USB Gadget Support

#

# CONFIG_USB_GADGET is not set



#

# MMC/SD Card support

#

# CONFIG_MMC is not set



#

# InfiniBand support

#

# CONFIG_INFINIBAND is not set



#

# SN Devices

#



#

# File systems

#

# CONFIG_EXT2_FS is not set

# CONFIG_EXT3_FS is not set

# CONFIG_JBD is not set

# CONFIG_REISERFS_FS is not set

# CONFIG_JFS_FS is not set

# CONFIG_FS_POSIX_ACL is not set



#

# XFS support

#

# CONFIG_XFS_FS is not set

# CONFIG_MINIX_FS is not set

# CONFIG_ROMFS_FS is not set

CONFIG_INOTIFY=y

# CONFIG_QUOTA is not set

# CONFIG_DNOTIFY is not set

# CONFIG_AUTOFS_FS is not set

# CONFIG_AUTOFS4_FS is not set



#

# CD-ROM/DVD Filesystems

#

# CONFIG_ISO9660_FS is not set

# CONFIG_UDF_FS is not set



#

# DOS/FAT/NT Filesystems

#

# CONFIG_MSDOS_FS is not set

# CONFIG_VFAT_FS is not set

# CONFIG_NTFS_FS is not set



#

# Pseudo filesystems

#

# CONFIG_PROC_FS is not set

# CONFIG_SYSFS is not set

# CONFIG_TMPFS is not set

# CONFIG_HUGETLB_PAGE is not set

CONFIG_RAMFS=y



#

# Miscellaneous filesystems

#

# CONFIG_HFSPLUS_FS is not set

# CONFIG_CRAMFS is not set

# CONFIG_VXFS_FS is not set

# CONFIG_HPFS_FS is not set

# CONFIG_QNX4FS_FS is not set

# CONFIG_SYSV_FS is not set

# CONFIG_UFS_FS is not set



#

# Network File Systems

#

CONFIG_NFS_FS=y

CONFIG_NFS_V3=y

# CONFIG_NFS_V3_ACL is not set

# CONFIG_NFSD is not set

CONFIG_ROOT_NFS=y

CONFIG_LOCKD=y

CONFIG_LOCKD_V4=y

CONFIG_NFS_COMMON=y

CONFIG_SUNRPC=y

# CONFIG_SMB_FS is not set

# CONFIG_CIFS is not set

# CONFIG_NCP_FS is not set

# CONFIG_CODA_FS is not set



#

# Partition Types

#

# CONFIG_PARTITION_ADVANCED is not set

CONFIG_MSDOS_PARTITION=y



#

# Native Language Support

#

# CONFIG_NLS is not set



#

# Kernel hacking

#

# CONFIG_PRINTK_TIME is not set

# CONFIG_DEBUG_KERNEL is not set

CONFIG_LOG_BUF_SHIFT=14

CONFIG_CROSSCOMPILE=y

CONFIG_CMDLINE="console=ttyS0 debug ip=172.20.0.2:172.20.0.1::255.255.0.0"



#

# Security options

#

# CONFIG_KEYS is not set

# CONFIG_SECURITY is not set



#

# Cryptographic options

#

# CONFIG_CRYPTO is not set



#

# Hardware crypto devices

#



#

# Library routines

#

# CONFIG_CRC_CCITT is not set

CONFIG_CRC32=y

# CONFIG_LIBCRC32C is not set

CONFIG_GENERIC_HARDIRQS=y

CONFIG_GENERIC_IRQ_PROBE=y

arch/mips/qemu/Makefile

0 → 100644
+5 −0
Original line number Original line Diff line number Diff line 
#

# Makefile for Qemu specific kernel interface routines under Linux.

#



obj-y		= q-firmware.o q-int.o q-irq.o q-mem.o q-setup.o

arch/mips/qemu/q-firmware.c

0 → 100644
+7 −0
Original line number Original line Diff line number Diff line 
#include <linux/init.h>

#include <asm/bootinfo.h>



void __init prom_init(void)

{

	add_memory_region(0x0<<20, 0x10<<20, BOOT_MEM_RAM);

}